CN221391172U - Side cutting mechanism of three-side forming machine for book block - Google Patents

Abstract

The utility model relates to the technical field of book block cutting, in particular to a side cutting mechanism of a book block three-side forming machine, which comprises a supporting platform, a book pressing mechanism and a book cutting mechanism; the book is arranged on the supporting platform, and the book pressing piece is slidably arranged on the longitudinal sliding channel through the book pressing installation piece and can slide in a guiding manner and can press the book; the cutting knife seat is arranged on the fixed shaft, and the swinging arm performs arc swinging motion, so that strain energy overcome by oblique cutting is smaller than that of normal cutting, and extrusion force and friction force applied to two sides of the knife are also small, thereby being beneficial to cutting books positioned and pressed on the supporting platform; in addition, cut the cutter seat and be connected with the fixed axle through nested hole for cut the cutter seat and can fix, through elasticity compress tightly piece each other between first locking lug and the second locking lug, make cut the cutter seat and can be closely matched with the fixed axle through nested hole, be difficult for the separation, keep sticis, when taking apart, drive first locking lug and the second locking lug mutually keep away from through driving the piece, realize the separation.

Description

Side cutting mechanism of three-side forming machine for book block

Technical Field

The utility model relates to the technical field of book block cutting, in particular to a side cutting mechanism of a book block three-side forming machine.

Background

The digital printing meets the printing requirements of the existing small-batch and multi-variety books, and the printing, binding and cutting processes all need to realize quick plate changing and adjustment.

Currently, printing technology and equipment, particularly pre-press and printing technology and equipment, have significantly advanced; however, in the aspect of books and periodicals, post-press processing mainly focuses on the binding process, and compared with pre-press printing and printing, the post-press processing is relatively slow in development, the mechanization level of the whole industry is not high, and books and periodicals are bound by adopting manual work and a small amount of machines.

The utility model of China with the patent number of CN201922493205.9 discloses three-side book cutting equipment, which comprises a machine table, a book feeding and conveying device, a stacking book pushing device, a front cutter cutting device, a book clamping and pushing device, a side cutter cutting device, a book discharging device and an electric control device for controlling; books are input by the book feeding and conveying device, the sizes of the books are adjusted at the same time, the books are conveyed into the front-cutter cutting device by the book stacking and pushing device to be cut at the front ends of the books, and the books are clamped to the side-transmitting cutting device by the book clamping and pushing device to be cut at two sides, and then are conveyed out by the book discharging device.

When the book is cut by the cutting mechanism, the thickness of the book is large, so that when the cutting knife is in contact with the book, the book is easy to tilt, the cutting knife and the book are changed in cutting size, the book can be cut out, the side edge of the cut book is not neat even if the cutting is completed, the subsequent further trimming is needed, and the cutting quality is poor.

Disclosure of utility model

The utility model aims to provide a side cutting mechanism of a book block three-side forming machine, which aims to overcome the defects of the prior art.

In order to achieve the above purpose, the technical scheme of the utility model is as follows:

Side cutting mechanism of three-sided make-up machine of book block, including supporting platform, press mechanism and book cutting mechanism, its characterized in that: the book pressing mechanism comprises a lifting guide seat, a book pressing installation piece is slidably installed on the lifting guide seat, and a book pressing piece is installed on the book pressing installation piece;

The book cutting mechanism comprises a fixed shaft, a cutting knife seat nested in the fixed shaft, a side cutting knife for cutting books is arranged on the cutting knife seat, and the book cutting mechanism also comprises a cutting transmission mechanism for driving the fixed shaft to do arc-shaped swing motion; the cutting transmission mechanism comprises a swing driving seat connected with the fixed shaft and a swing arm with one end movably connected with the swing driving seat, and the swing arm swings in an arc shape so as to drive the fixed shaft to reciprocate in the vertical direction with radian;

The cutting knife seat is provided with a holding structure connected with the fixed shaft, the holding structure comprises a nested hole formed in the cutting knife seat and connected with the fixed shaft, and a first locking lug and a second locking lug for adjusting tightness between the cutting knife seat and the fixed shaft, and an elastic pressing piece and a driving expanding piece are arranged between the first locking lug and the second locking lug, wherein the elastic pressing piece is close to each other;

a distance adjusting mechanism is arranged between the two cutting knife seats.

The utility model has the beneficial effects that: the book to be cut is placed on the supporting platform, and the book pressing piece can press the book in a longitudinal movement manner through the book pressing mounting piece;

The cutting knife seat is arranged on the fixed shaft, the swinging arm performs arc swinging motion, the end part of the swinging arm is movably connected with the swinging driving seat, when the swinging arm moves, the swinging driving seat can move downwards obliquely in the vertical direction, the side cutters of the cutting knife seat cut obliquely with the same feed amount, strain energy overcome by oblique cutting is smaller than that of normal cutting, extrusion force applied to two sides of the knife is small, friction force is also small, and books positioned and pressed on the supporting platform are cut;

In addition, the cutting knife seat is connected with the fixed shaft through the nested hole, so that the cutting knife seat can be fixed, and in the fixing process, the first locking convex block and the second locking convex block are mutually close to each other through the elastic pressing piece, so that the cutting knife seat can be tightly matched with the fixed shaft through the nested hole, is not easy to separate, is kept tightly pressed, and drives the first locking convex block and the second locking convex block to be mutually far away through the driving opening piece when the cutting knife seat needs to be disassembled, and the distance between the cutting knife seat and the fixed shaft is adjusted through the distance adjusting mechanism, so that books with different sizes can be cut.

Drawings

Fig. 1 is a schematic structural view of a side cutting platform.

Fig. 2 is a schematic structural view of the bookpress mechanism.

Fig. 3 is a schematic cross-sectional structure of the bookpress mechanism.

Fig. 4 is a schematic view of another view structure of the bookpress mechanism.

Fig. 5 is a schematic structural view of the book cutting mechanism.

Fig. 6 is a schematic view of the structure of the drive guide mechanism.

Fig. 7 is a schematic structural view of one of the pillar panels connected to the cutting drive mechanism.

Fig. 8 is a schematic structural view of the cutting transmission mechanism.

Fig. 9 is a schematic view of a mounting structure of the cutter holder.

FIG. 10 is a schematic view of another view of the mounting of the cutting insert.

Fig. 11 is a schematic structural view of the clasping structure.

Fig. 12 is a schematic cross-sectional view of the cinching mechanism.

Fig. 13 is a schematic structural view of the distance adjusting mechanism.

The reference numerals include:

A 1-book pressing mechanism,

10-Supporting platform, 11-lifting guide seat, 110-book pressing piece, 111-book pressing installation piece,

112-Longitudinal sliding holes, 113-connecting grooves, 114-sliding sleeves, 115-first connecting shafts, 116-second connecting sleeves, 117-rotating driving shafts, 118-driving cavities, 119-driving screw rods, 12-book pressing swing arms, 121-swing arm plates,

122-A longitudinal driving arm, 123-a first rotating shaft for pressing books, 124-a second rotating shaft for pressing books,

125-A third rotating shaft, 126-an arc-shaped groove, 127-a connecting seat, 128-a movable connecting rod piece,

13-Buffer driving piece, 131-elastic driving block, 132-mounting plate, 133-spring guide shaft, 134-buffer block, 135-compression spring, 136-rolling surface, 137-first guide rolling wheel, 14-swing driving arm, 141-first buffer arm, 142-second buffer arm, 143-buffer rolling wheel, 144-buffer shaft, 145-second connecting shaft, 146-third sleeve, 2-book cutting mechanism, 21-cutting transmission mechanism,

211-Swinging driving seat, 212-upright post plate, 213-swinging driving hole, 214-driving frame,

215-Drive shaft, 216-drive gear, 217-cam block, 218-bearing seat,

22-Swing arm,

221-A driving arm, 222-a first rotating shaft, 223-a second rotating shaft, 224-a first limiting groove, 225-a first rotating hole, 226-a third rotating shaft, 227-a fourth rotating shaft,

23-Fulcrum seat,

230-A driving connecting block, 231-a guide arm, 232-a second limit groove, 233-a second rotating hole,

234-Rolling guide plate, 235-second guiding rolling wheel, 236-side rolling plate, 237-fixed shaft,

238-A cutter seat, 239-a side cutter,

A 3-clasping structure,

311-Connecting seat, 312-nested hole, 313-first locking projection,

314-Second locking projection, 315-first fitting groove, 316-second fitting groove, 317-opening,

318-Movable holes, 319-limit rods,

32-A guide shaft,

321-Elastic compression piece, 322-driving expansion piece, 323-elastic compression piece, 324-stop sleeve,

325-Screw sleeve, 326-hydraulic cylinder, 327-driving block, 328-guiding hole, 329-guiding driving hole, 33-distance adjusting mechanism,

331-Adjusting screw rod, 332-external thread structure, 333-adjusting hole, 334-swivel nut seat.

Detailed Description

The present utility model will be described in detail below with reference to the accompanying drawings.

As shown in fig. 1-13, the side cutting mechanism of the book block three-face forming machine comprises a supporting platform 10, a book pressing mechanism 1 and a book cutting mechanism 2. The supporting platform 10 supports and positions books to be cut laterally through the supporting platform, and the books can be pressed and cut by matching the book pressing mechanism 1 and the book cutting mechanism 2.

The book pressing mechanism 1 comprises a lifting guide seat 11, a book pressing installation piece 111 is slidably installed on the lifting guide seat 11, a book pressing piece 110 is installed on the book pressing installation piece 111, and a book pressing driving piece for driving the book pressing installation piece 111 to longitudinally move is further included; the book pressing driving piece comprises a book pressing swing arm 12 capable of swinging longitudinally, and the other end of the book pressing swing arm is connected with a longitudinal driving arm 122 capable of moving longitudinally; the lifting guide seat 11 is provided with a longitudinal sliding channel for guiding and sliding the book pressing mounting piece 111.

The book pressing piece 110 is slidably mounted on the longitudinal sliding channel through the book pressing mounting piece 111, the longitudinal driving arm 122 longitudinally moves, the book pressing swing arm 12 is driven to swing, and the book pressing swing arm 12 can drive the book pressing piece 110 to move along the longitudinal sliding channel, so that the book pressing piece 110 mounted on the longitudinal sliding channel can slide in a guiding manner, the sliding stability is improved, the book pressing piece is not easy to deviate, and books can be pressed.

Further, the longitudinal sliding channel is a longitudinal sliding hole 112 longitudinally arranged along the lifting guide seat 11, a connecting groove 113 transversely penetrating through the longitudinal sliding hole 112 is formed along the longitudinal sliding hole, the book pressing mounting piece 111 comprises a connecting seat 127 nested in the book pressing mounting piece 111, the book pressing mounting piece further comprises a first connecting shaft 115 connected with the book pressing piece 110 and a second connecting sleeve 116 fixedly nested outside the second connecting shaft 145, and the longitudinal sliding hole 112 is provided with a sliding sleeve 114 for longitudinally sliding the first connecting shaft 115 and the second connecting sleeve 116.

In this embodiment, the connecting seat 127 is nested in the outer ring of the second connecting sleeve 116, when the book pressing swing arm 12 swings, the connecting seat 127 can move in the vertical direction of the connecting groove 113, the second connecting sleeve 116 is in sliding fit with the sliding sleeve 114, and the book pressing piece 110 can move in the vertical direction, so that the book pressing piece 110 installed in the longitudinal sliding channel can slide in a guiding manner, and the sliding stability is improved.

The book pressing swing arm 12 comprises a swing arm plate 121 and a buffer driving piece 13 arranged along the length direction of the swing arm plate 121, the swing arm plate 121 is provided with a book pressing first rotating shaft 123 rotationally connected with a longitudinal driving arm 122, and the lifting guide seat 11 is provided with a book pressing second rotating shaft 124 and a book pressing third rotating shaft 125 rotationally connected with the swing arm plate 121. One end of the swing arm plate 121 is rotationally connected with the longitudinal driving arm 122 through the book pressing first rotating shaft 123, and the middle end of the swing arm plate 121 is rotationally connected with the book pressing second rotating shaft 124.

In this embodiment, the longitudinal driving arm 122 moves longitudinally, and is connected with the swing arm plate 121 through the book pressing first rotating shaft 123, the swing arm plate 121 swings around the book pressing second rotating shaft 124 of the lifting guide seat 11, the inner end of the swing arm plate 121 swings correspondingly in an arc shape, and for this purpose, the other end of the swing arm plate 121 is provided with an arc-shaped groove 126 for the movement of the book pressing third rotating shaft 125, so that the swing arm plate 121 is movably connected with the book pressing third rotating shaft 125 all the time, and the position of the inner end of the third swing arm plate 121 changes, so that the swing is realized.

Preferably, the bottom end of the longitudinal driving arm 122 can be matched with the cam block in a rolling way to realize lifting; lifting can be realized under the drive of the telescopic hydraulic cylinder.

The buffer driving member 13 includes an elastic driving block 131 mounted at the outer end of the swing arm plate 121, a swinging driving arm 14 capable of swinging, and a movable link member 128 movably connected with the book pressing mounting member 111 mounted at the inner end of the swinging driving arm 14. When the swing arm plate 121 swings, the positions of the swing arm plate 121 and the swing driving arm 14 mounted on the swing arm plate 121 change, and the movable link member 128 can drive the second connecting sleeve 116 to lift.

The mounting plate 132 is installed to swing arm plate 121 one end, and the elastic drive piece 131 includes one end fixed at the spring guide shaft 133 of mounting plate 132 and slidable mounting at the buffer block 134 of spring guide shaft 133, and mounting plate 132 is still installed and is supported the compression spring 135 of buffer block 134.

In this embodiment, when the outer end of the swing arm plate 121 descends, the arc-shaped slot 126 at the inner end will ascend around the third rotation axis 125 for pressing books, and at this time, the inner end of the swing driving arm 14 will drive the second connecting sleeve 116 to ascend through the movable link member 128; on the contrary, when the outer end of the swing arm plate 121 rises, the arc-shaped slot 126 at the inner end descends around the third rotating shaft 125 for pressing books, at this time, the inner end of the swing driving arm 14 drives the second connecting sleeve 116 to descend through the movable connecting rod piece 128 for pressing and positioning the books, and when the pressing and positioning are performed, the buffer block 134 compresses along the spring guide shaft 133 nested with the compression spring 135, so that the second connecting sleeve 116 has a buffering effect when descending, namely has elasticity for pressing the books, and can prevent the books from being crushed.

Preferably: the top and bottom of the buffer block 134 are respectively formed with a rolling surface 136 along the length direction, the swing arm plate 121 is provided with a plurality of first guiding rolling wheels 137 in rolling fit with the rolling surface 136, and when the buffer block 134 slides, the buffer block 134 can axially move along the spring guiding shaft 133 through the rolling fit of the rolling surface 136 and the first guiding rolling wheels 137,

The swing arm plate 121 is provided with a buffer shaft 144, the swing driving arm 14 comprises a first buffer arm 141 and a second buffer arm 142, the first buffer arm 141 is arranged on the buffer shaft 144 in a swinging way, the second buffer arm 142 is rotationally connected with the first buffer arm 141, the outer end of the first buffer arm 141 is provided with a buffer rolling wheel 143 which is in rolling fit with the buffer block 134, the inner end of the first buffer arm 141 is provided with a second connecting shaft 145 for nesting the second buffer arm 142, the first buffer arm 141 swings around the second connecting shaft 145, the inner end of the second buffer arm 142 is nested on the book pressing third rotating shaft 125, and the top end of the movable link member 128 is coaxially nested on the book pressing third rotating shaft 125.

In this embodiment, when the swing arm plate 121 swings, the total length between the first buffer arm 141 and the second buffer arm 142 will change, the outer end of the first buffer arm 141 is in rolling fit with the buffer block 134 through the buffer rolling wheel 143, and when the swing arm plate 121 descends at the outer end, the second buffer arm 142 drives the movable link member 128 to swing upwards around the book pressing third rotation shaft 125, so that the second connecting sleeve 116 can be lifted; similarly, when the outer end rises, the second buffer arm 142 drives the movable link member 128 to swing downwards around the third book pressing rotating shaft 125, so that the second connecting sleeve 116 can descend to press books; when descending, the outer end of the first buffer arm 141 is in rolling fit with the buffer block 134 through the buffer rolling wheel 143, so that the buffer elastic effect is achieved.

The third rotating shaft 125 for pressing books is nested with a third sleeve 146 capable of rotating radially, the outer end of the second buffer arm 142 and the top end of the movable connecting rod are both fixed on the third sleeve 146, the bottom of the movable connecting rod is rotationally connected with the second connecting sleeve 116 through the rotating shaft, and the second connecting sleeve 116 is provided with an arc-shaped groove 126 for the movable connecting rod to move when swinging. When the book pressing member 110 is lifted and lowered, the outer end of the first buffer arm 141 is in rolling fit with the buffer block 134 through the buffer rolling wheel 143, so that the buffer elastic effect is achieved.

The number of the swing arm plates 121 is two, the two swing arm plates 121 are arranged in parallel at intervals, the two swing arm plates 121 are fixedly connected through the mounting plate 132, and the swing driving arm 14 is arranged between the two swing arm plates 121, so that the elastic stabilizing effect of book pressing can be improved.

One of the embodiments is: the bearing frame is installed at second adapter sleeve 116 top, the rotation drive shaft 117 is installed to the bearing frame, first connecting axle 115 has hollow structure's drive chamber 118 along the axial shaping, drive screw 119 is installed through the internal screw structure to drive chamber 118 shaping, drive screw 119 is connected with rotation drive shaft 117, rotation drive shaft 117 rotates under the drive of motor, make drive screw 119 can with the internal screw structure screw thread fit of drive chamber 118, make the first connecting axle 115 of installing book pressing piece 110 can slide in second adapter sleeve 116 is internal, make book pressing piece 110 can go up and down.

Preferably, the driving screw rod 119 is of a hollow structure, a positioning groove is formed in the hollow structure of the driving screw rod 119 along the axial direction, a lug sliding along the positioning groove is formed on the rotating driving shaft 117, the driving screw rod 119 is in sliding fit with the lug, and when the rotating driving shaft 117 rotates, the driving screw rod 119 is driven to rotate through the cooperation of the lug and the driving screw rod 119.

The book cutting mechanism 2 comprises a fixed shaft 237 and a cutting knife seat 238 nested in the fixed shaft 237, wherein the cutting knife seat 238 is provided with a side cutting knife 239 for cutting books, and the book cutting mechanism also comprises a cutting transmission mechanism 21 for driving the fixed shaft 237 to do arc-shaped swinging motion; the cutting transmission mechanism 21 includes a swing driving seat 211 connected to the fixed shaft 237 and a swing arm 22 having one end movably connected to the swing driving seat 211, the swing arm 22 swinging in a longitudinal arc shape to drive the fixed shaft 237 to reciprocate in a vertical direction having an arc.

The distance between the two cutting knife seats 238 is larger than the width of the book pressing piece 110, and after the book pressing piece 110 presses books, the cutting knife seats 238 can normally cut and shape the pressed books.

The cutter seat 238 is mounted on the fixed shaft 237, the swing arm 22 performs arc swing motion, the end part of the swing arm 22 is movably connected with the swing driving seat 211, when the swing arm 22 moves, the swing driving seat 211 can move downwards obliquely in the vertical direction, the side cutters 239 of the cutter seat 238 cut obliquely, the same feed amount is adopted, strain energy overcome by oblique cutting is smaller than that of normal cutting, the extrusion force received by two sides of the cutter is small, the friction force is also small, the cutter is facilitated to cut, and the cutter can be protected.

The cutting transmission mechanism 21 further includes a pair of column plates 212 arranged at intervals, and the column plates 212 are provided with swing driving members for driving the swing arms 22 to swing reciprocally. The swing driving piece comprises a rotatable driving shaft 215 and a cam block 217 arranged at one end of the driving shaft 215, a transmission arm 221 is in transmission connection between the cam block 217 and the swing arm 22, the driving shaft 215 rotationally drives the cam block 217 to rotate, and one end of the transmission arm 221 is movably nested on the cam block 217, so that the transmission arm 221 can reciprocate, and accordingly the swing arm 22 is driven to correspondingly do reciprocating arc-shaped swing motion.

The column plate 212 is transversely provided with a swing driving hole 213, a driving frame 214 is arranged outside the swing driving hole 213, a bearing seat 218 for the driving shaft 215 to rotate is arranged on the driving frame 214, a driving gear 216 is arranged at the outer end of the driving shaft 215, the driving gear 216 rotates under the driving of a motor, and accordingly the driving shaft 215 is driven to rotate around the bearing seat 218 on the driving frame 214, and a cam block 217 is located inside the column plate 212.

The cam block 217 is provided with a first rotating shaft 222, one end of the transmission arm 221 is movably nested on the first rotating shaft 222, the position, close to the middle point, of the swing arm 22 is provided with a second rotating shaft 223, the other end of the transmission arm 221 is movably nested on the second rotating shaft 223, one end of the transmission arm 221 is movably connected with the first rotating shaft 222 of the cam block 217, the other end of the transmission arm 221 is movably connected with the second rotating shaft 223 of the swing arm 22, and when the cam block 217 rotates, the transmission arm 221 drives the swing arm 22 to swing reciprocally.

One end of the transmission arm 221 is formed with a first limit groove 224, the first limit groove 224 is provided with a first rotation hole 225 for installing a second rotation shaft 223, the width of the first limit groove 224 is larger than that of the swing arm 22, and when the swing arm 22 is connected with the transmission arm 221, the swing arm 22 is limited by the first limit groove 224, and the swing track is vertical.

The column plate 212 is provided with a third rotating shaft 226, the bottom end of the swing arm 22 is rotationally connected with the third rotating shaft 226, the swing arm 22 longitudinally swings around the third rotating shaft 226, the swing driving seat 211 is provided with a fourth rotating shaft 227, the top of the swing arm 22 is rotationally connected with the fourth rotating shaft 227, in this embodiment, the swing arm 22 is driven to swing by the driving arm 221, so that the bottom end of the swing arm 22 swings around the third rotating shaft 226, and the top end of the swing arm 22 drives the swing driving seat 211 to move through the fourth rotating shaft 227, so that the movement track of the swing driving seat 211 is the movement track of the outer end of the swing arm 22.

The swing driving seat 211 is formed with a driving connection block 230, the driving connection block 230 is formed with a second limit groove 232, the second limit groove 232 is provided with a second rotation hole 233 for installing a fourth rotation shaft 227, the width of the second limit groove 232 is larger than that of the swing arm 22, the top of the swing arm 22 is limited by the second limit groove 232 and cannot transversely move beyond the width range of the second limit groove 232, the swing arm 22 is kept to move in the vertical direction, and the stability of a motion track can be guaranteed and the swing smoothness is improved under the limit action of the first limit groove 224 and the second limit groove 232.

The upright post plate 212 is provided with a fulcrum seat 23, the fulcrum seat 23 is provided with a guide arm 231 capable of swinging, the other end of the guide arm 231 is movably connected with the swinging driving seat 211 so as to limit the movement of the swinging driving seat 211 within the range of the movement track of the outer end of the guide arm 231, the guide arm 231 is in transmission action, when the swinging driving seat 211 performs arc swinging movement, the top end of the guide arm 231 correspondingly moves, and the guide arm 231 swings around the fulcrum seat 23 at the bottom end.

The swing driving seat 211 is further provided with a rolling guide plate 234, the rolling guide plate 234 is provided with a second guiding rolling wheel 235, the inner side wall of the upright post plate 212 is provided with a side rolling plate 236 in rolling fit with the second guiding rolling wheel 235 along the movement direction of the fixed shaft 237, when the swing driving seat 211 moves in an inclined arc shape in the vertical direction, the second guiding rolling wheel 235 arranged on the rolling guide plate 234 rolls along the side rolling plate 236, so that the inner side wall of the swing driving seat 211 is not easy to transversely deviate under the limit of the second guiding rolling wheel 235 and the side rolling plate 236, and the moving stability can be improved.

The cutter seat 238 shaping has the connecting seat, and nested hole 312 shaping is at connecting seat 311, and side cutter 312 installs at cutter seat 238, holds tightly structure 3 including shaping at connecting seat 311, with fixed axle connected nested hole 312 and adjust the first locking lug 313 and the second locking lug 314 of elasticity between connecting seat 311 and the fixed axle, be provided with the elastic clamping piece 321 and the drive that keep away from each other that are close to each other between first locking lug 313 and the second locking lug 314 and prop open piece 322.

The connecting seat 311 is connected with the fixed shaft through the nested hole 312, so that the connecting seat 311 can be fixed, and when the connecting seat is fixed, the first locking convex block 313 and the second locking convex block 314 are propped open to be close to each other through the elastic pressing piece, so that the connecting seat 311 can be tightly matched with the fixed shaft through the nested hole 312, is not easy to separate, is kept to be tightly pressed, and when the connecting seat needs to be disassembled, the first locking convex block 313 and the second locking convex block 314 are driven to be far away from each other through the driving of the propping-open piece 322, so that separation is realized, and the disassembly is simple.

The connecting seat 311 is formed with an opening 317 capable of adjusting the size of the nesting hole 312 along the axial direction, the first locking convex block 313 and the second locking convex block 314 are arranged at intervals, and when the first locking convex block 313 and the second locking convex block 314 are close to each other, the width of the opening 317 is reduced, so that enclasping can be realized; in contrast, when the first locking protrusion 313 and the second locking protrusion 314 are separated from each other, the width of the opening 317 increases, and the connection seat 311 can be released from the fixing shaft for adjustment.

A guide shaft 32 is arranged between the first locking projection 313 and the second locking projection 314, one end of the guide shaft 32 extends to the top of the first locking projection 313, the first locking projection 313 and the second locking projection 314 are respectively and coaxially formed with a guide driving hole 329 coaxially aligned with the guide shaft 32, the bottom of the guide shaft 32 is fixed on the second locking projection 314, the first locking projection 313 can move along the guide shaft 32 through the guide driving hole 329, and the first locking projection 313 and the second locking projection 314 can be held tightly or detached in a sliding manner along the guide shaft 32 through the guide shaft 32.

The stop sleeve 324 is installed at guide shaft 32 top, and elastic pressing piece 321 includes a plurality of elastic pressing pieces 323 that nest at guide shaft 32 top with stacking, and a plurality of elastic pressing pieces 323 that stack are located between stop sleeve 324 and the first locking lug 313 in order to elasticity drive first locking lug 313 is close to second locking lug 314, and elastic pressing piece 323 has elastic deformation's effect, and a plurality of elastic pressing pieces 323 that stack constantly prop open can push down first locking lug 313, constantly are close to second locking lug 314 for the opening 317 width of nested hole 312 reduces, and under great elastic pressure, connecting seat 311 and fixed axle realize holding tightly.

Preferably, the top of the guide shaft 32 is formed with an external thread structure 332, a thread sleeve 325 is installed on a knob of the external thread structure 332, a stop sleeve 324 is located at the bottom of the thread sleeve 325, when the connecting seat 311 is held tightly on the fixed shaft, the elastic pressing sheets 323 are nested in the guide shaft 32 through holes and stacked layer by layer, then the elastic pressing sheets 323 are fixed at the top of the guide shaft 32 through the thread sleeve 325 and the stop sleeve 324, the elastic pressing sheets 323 can be compressed by the thread sleeve 325 continuously, the first locking convex block 313 is continuously pressed down along the guide shaft 32 to be close to the second locking convex block 314 under strong elastic driving, the width of an opening 317 of the nesting hole 312 is reduced, and the connecting seat 311 is held tightly with the fixed shaft.

When the disassembly is needed, the driving propping piece 322 comprises an oil hydraulic cylinder 326 arranged between the first locking convex block 313 and the second locking convex block 314, the bottom of the oil hydraulic cylinder 326 is provided with the second locking convex block 314, the driving end of the oil hydraulic cylinder 326 can stretch out to prop up the first locking convex block 313 to be far away from the second locking convex block 314, the driving end of the oil hydraulic cylinder 326 can stretch out to prop against the bottom of the first locking convex block 313, the plurality of stacked elastic pressing pieces 323 are compressed by strong pushing force, the width of an opening 317 of the nesting hole 312 is increased, the nesting hole 312 and the fixed shaft are loosened, and the transverse position of the connecting seat 311 can be adjusted.

Preferably, the driving end of the hydraulic cylinder 326 is provided with a driving block 327, and the driving block 327 is provided with a guide hole 328 for the guide shaft 32 to pass through, so that the driving block 327 at the driving end of the hydraulic cylinder 326 can slide along the guide shaft 32, and the driving block 327 can prop against the first locking protrusion 313 to drive the first locking protrusion 313 to prop up upwards and away from the second locking protrusion 314.

The connecting seat 311 is laterally provided with a first engagement groove 315 for mounting the first locking protrusion 313 and a second engagement groove 316 for mounting the second locking protrusion 314, the first engagement groove 315 and the second engagement groove 316 are aligned in a vertical direction, and the first locking protrusion 313 is mounted on the connecting seat 311 through the first engagement groove 315. The second locking protrusion 314 is mounted on the connection base 311 through the second fitting groove 316.

The movable hole 318 is longitudinally formed in the first locking protrusion 313, the limiting rod 319 is mounted in the movable hole 318 in a height-adjustable mode, when the plurality of stacked elastic pressing sheets 323 are continuously spread, the first locking protrusion 313 is continuously close to the second locking protrusion 314, and the limiting rod 319 can prevent the first locking protrusion 313 from crushing the oil cylinder 326, so that the subsequent elastic pressing sheets 323 cannot be spread.

The distance adjusting mechanism 33 is arranged between the two cutting knife bases 238, the distance adjusting mechanism 33 comprises a rotatable adjusting screw 331, an external thread structure 332 is formed on the left half part and the right half part of the adjusting screw 331, the external thread structures 332 on the left half part and the right half part are opposite in thread direction, the cutting knife bases 238 are provided with screw sleeve bases 334 which are in threaded fit with the external thread structures 332 of the adjusting screw 331, in addition, the cutting knife bases 238 are provided with adjusting holes which are coaxially aligned with the adjusting screw, and the screw sleeve bases 334 which are in threaded fit with the adjusting screw 331 are arranged at the adjusting holes. When the distance between the two cutter holders 238 needs to be adjusted, the adjusting screw rod 331 is rotated, the two cutter holders 238 are simultaneously in threaded fit with the adjusting screw rod 331 through the threaded sleeve seat 334, and the two cutter holders 238 can be mutually close to or far away from each other along the adjusting screw rod 331 due to the fact that the external threaded structures 332 of the left half portion and the right half portion are opposite in threaded direction, so that the distance between the two cutter holders 238 provided with the side cutters is adjusted.

In view of the above, the present utility model has the above-mentioned excellent characteristics, so that it can be used to improve the performance and practicality of the prior art, and is a product with great practical value.

The foregoing is merely exemplary of the present utility model, and those skilled in the art should not be considered as limiting the utility model, since modifications may be made in the specific embodiments and application scope of the utility model in light of the teachings of the present utility model.

Claims (10)

1. Side cutting mechanism of three-sided make-up machine of book block, including supporting platform, press mechanism and book cutting mechanism, its characterized in that: the book pressing mechanism comprises a lifting guide seat, a book pressing installation piece is slidably installed on the lifting guide seat, and a book pressing piece is installed on the book pressing installation piece;

The book cutting mechanism comprises a fixed shaft, a cutting knife seat nested in the fixed shaft, a side cutting knife for cutting books is arranged on the cutting knife seat, and the book cutting mechanism also comprises a cutting transmission mechanism for driving the fixed shaft to do arc-shaped swing motion; the cutting transmission mechanism comprises a swing driving seat connected with the fixed shaft and a swing arm with one end movably connected with the swing driving seat, and the swing arm swings in an arc shape so as to drive the fixed shaft to reciprocate in the vertical direction with radian;

The cutting knife seat is provided with a holding structure connected with the fixed shaft, the holding structure comprises a nested hole formed in the cutting knife seat and connected with the fixed shaft, and a first locking lug and a second locking lug for adjusting tightness between the cutting knife seat and the fixed shaft, and an elastic pressing piece and a driving expanding piece are arranged between the first locking lug and the second locking lug, wherein the elastic pressing piece is close to each other;

a distance adjusting mechanism is arranged between the two cutting knife seats.

2. The sidecutting mechanism of a book block three-sided molding machine according to claim 1, wherein: the distance adjusting mechanism comprises a rotatable adjusting screw rod, the left half part and the right half part of the adjusting screw rod are respectively provided with an external thread structure, the threads of the external thread structures of the left half part and the right half part are opposite in direction, and the cutting knife seat is provided with a screw sleeve seat in threaded fit with the external thread structure of the adjusting screw rod.

3. The sidecutting mechanism of a book block three-sided molding machine according to claim 2, wherein: the cutting knife seat is provided with an adjusting hole coaxially aligned with the adjusting screw rod, and the threaded sleeve seat in threaded fit with the adjusting screw rod is arranged at the adjusting hole.

4. The sidecutting mechanism of a book block three-sided molding machine according to claim 1, wherein: the cutting tool apron is provided with an opening capable of adjusting the size of the nested hole along the axial forming direction, the first locking convex blocks and the second locking convex blocks are arranged at intervals, a guide shaft is arranged between the first locking convex blocks and the second locking convex blocks, one end of the guide shaft extends towards the top of the first locking convex blocks, and the bottom of the guide shaft is fixed on the second locking convex blocks.

5. The sidecutting mechanism of a book block three-sided molding machine according to claim 4, wherein: the stop sleeve is arranged at the top of the guide shaft, the elastic pressing piece comprises a plurality of elastic pressing pieces which are nested at the top of the guide shaft in a stacked mode, and the plurality of stacked elastic pressing pieces are located between the stop sleeve and the first locking convex blocks to elastically drive the first locking convex blocks to be close to the second locking convex blocks.

6. The sidecutting mechanism of a book block three-sided molding machine according to claim 5, wherein: the driving opening piece comprises an oil hydraulic cylinder arranged between the first locking convex block and the second locking convex block, the bottom of the oil hydraulic cylinder is arranged on the second locking convex block, the driving end of the oil hydraulic cylinder can stretch out to jack up the first locking convex block to be far away from the second locking convex block, and the oil hydraulic cylinder is provided with a guide hole for a guide shaft to pass through.

7. The sidecutting mechanism of a book block three-sided molding machine according to claim 1, wherein: the cutting transmission mechanism further comprises a pair of stand column plates which are arranged at intervals, the stand column plates are provided with swing driving pieces which drive the swing arms to swing reciprocally, the swing driving pieces comprise rotatable driving shafts and cam blocks which are arranged at one ends of the driving shafts, and transmission arms are connected between the cam blocks and the swing arms.

8. The sidecutting mechanism of a book block three-sided molding machine according to claim 7, wherein: the driving device is characterized in that the upright post plate is transversely provided with a driving hole, the outside of the driving hole is provided with a driving frame, the driving frame is provided with a bearing seat for the driving shaft to rotate and install, a cam block is located on the inner side of the upright post plate and is provided with a first rotating shaft, one end of a transmission arm is movably nested on the first rotating shaft, a second rotating shaft is installed at a position, close to the middle point, of the swing arm, and the other end of the transmission arm is movably nested on the second rotating shaft.

9. The side cutting mechanism of the three-sided book block molding machine according to claim 8, wherein: the swing driving seat is also provided with a rolling guide plate, the rolling guide plate is provided with a guiding rolling wheel, and the inner side wall of the upright post plate is provided with a side rolling plate in rolling fit with the guiding rolling wheel along the moving direction of the fixed shaft.

10. The sidecutting mechanism of a book block three-sided molding machine according to claim 1, wherein: the supporting platform comprises a supporting table for supporting books, the book pressing mechanism and the book cutting mechanism are both located above the supporting table, and the distance between the two cutting knife seats is larger than the width of the book pressing piece.