CN213946532U

CN213946532U - Book edge cutting and conveying device

Info

Publication number: CN213946532U
Application number: CN202022036185.5U
Authority: CN
Inventors: 邢小旦; 杨晓玲; 刘彦彪
Original assignee: Zhengzhou Yuxing Printing Co ltd
Current assignee: Zhengzhou Yuxing Printing Co ltd
Priority date: 2020-09-16
Filing date: 2020-09-16
Publication date: 2021-08-13
Anticipated expiration: 2030-09-16

Abstract

The application relates to a book edge cutting and conveying device which comprises an operating platform, a conveying mechanism, a cutting mechanism and a paper edge waste recycling mechanism; paper margin garbage recovery mechanism includes a crushing barrel and crushing unit, the crushing barrel holding is in the holding cavity of operation panel, and the vertical hole of operation panel is worn out to one end, crushing unit is including smashing the support, crushing motor, the driving gear, first driven gear, first crushing rotor, second driven gear and second crushing rotor, it is vertical to set up on the operation panel to smash the support, the one end of crushing motor sets up on smashing the support, the other end and driving gear connection, first driven gear and driving gear meshing are passed through to the one end of first crushing rotor, the other end rotationally connects in the inner wall of crushing barrel, second driven gear and driving gear meshing are passed through to the one end of second crushing rotor, the other end rotationally connects in the inner wall of crushing barrel. This application has the effect that the manpower that the waste material of recycling paper limit consumed is reduced.

Description

Book edge cutting and conveying device

Technical Field

The application relates to the field of paper cutting processing, in particular to a book edge cutting and conveying device.

Background

The production process of books generally consists of the following steps: typesetting, paper cutting, printing, binding, and the like. The printed sheets that are initially cut are typically larger than the final finished sheets to avoid the entire book falling into rejects due to sheet edge breakage during subsequent processing. Thus, after binding the book, the excess portion of the edge of the book needs to be cut.

The related art is to put the finished book on a cutting table and then cut the edge of the book on the cutting table by a cutting knife.

In view of the above-mentioned related technologies, the inventor believes that although the above-mentioned related technologies achieve the cutting of the book edge, the cut waste paper edge directly falls on the floor of the workshop, and the post-finishing and recycling of the waste paper edge is relatively labor-consuming.

SUMMERY OF THE UTILITY MODEL

In order to reduce the manpower that the waste material of retrieving the paper limit consumed, this application provides a conveyor is cut to book limit.

The application provides a book limit cutting conveyor adopts following technical scheme:

a book edge cutting and conveying device comprises an operating platform, a conveying mechanism, a cutting mechanism and a paper edge waste recycling mechanism; wherein the content of the first and second substances,

the operating platform is provided with a longitudinal hole and a transverse hole respectively, an accommodating cavity is arranged in the operating platform, and the longitudinal hole and the transverse hole are communicated with the accommodating cavity respectively;

the conveying mechanism comprises a conveying belt and a clamping groove arranged on the conveying belt, and the conveying belt is arranged on the operating platform;

the cutting mechanism is arranged on the operating platform;

the paper edge waste recycling mechanism comprises a crushing barrel and a crushing assembly, the crushing barrel is contained in a containing cavity of an operating platform, one end of the crushing assembly penetrates out of a longitudinal hole of the operating platform, the crushing assembly comprises a crushing support, a crushing motor, a driving gear, a first driven gear, a first crushing knife roller, a second driven gear and a second crushing knife roller, the crushing support is vertically arranged on the operating platform, one end of the crushing motor is arranged on the crushing support, the other end of the crushing motor is connected with the driving gear, one end of the first crushing knife roller is meshed with the driving gear through the first driven gear, the other end of the first crushing knife roller is rotatably connected to the inner wall of the crushing barrel, one end of the second crushing knife roller is meshed with the driving gear through the second driven gear, and the other end of the second crushing knife roller is rotatably connected to the inner wall of the crushing barrel.

By adopting the technical scheme, the books clamped and fixed in the clamping grooves move to the cutting mechanism along with the conveyor belt, the cut-over ends of the books are cut through the cutting mechanism, the cut paper edge waste materials can fall into the crushing barrel, the crushing motor is started to drive the driving gear to rotate, the driving gear rotates to drive the first driven gear and the second driven gear to rotate oppositely, and then the first crushing knife roller and the second crushing knife roller are driven to rotate oppositely to crush the paper edge waste materials; through the setting of this application, reduced the manpower that retrieves paper limit waste material and consumed, convenient and practical.

Optionally, the paper edge waste recovery mechanism further comprises a waste conveying pipeline and an exhaust fan, one end of the waste conveying pipeline penetrates through the transverse hole of the operating platform to be connected with the crushing barrel, and the other end of the waste conveying pipeline is connected with the exhaust fan.

Through adopting above-mentioned technical scheme, through setting up waste material pipeline and air exhauster to, waste material pipeline's one end is passed horizontal hole and is connected with crushing barrel, and the other end is connected with the air exhauster, and then takes out kibbling waste material in will crushing barrel through the air exhauster to carry out the recovery of waste material and recycle, avoid causing the waste, practiced thrift the cost.

Optionally, one end of the crushing cylinder penetrating through the longitudinal hole is provided with a guide plate.

Through adopting above-mentioned technical scheme, set up the deflector through the one end of wearing out vertical hole at crushing barrel, and then, can lead to crushing barrel in through the deflector fast through the paper margin waste material that cuts off through cutting the mechanism, promoted the crushing efficiency of paper margin waste material.

Optionally, be provided with the backup pad of two mutual parallels and vertical settings on the operation panel, the spout has been seted up in the backup pad, cut the mechanism including being used for cutting the cutting element that books cut, cutting element is including sliding the slide that sets up in the spout and connecting in the tool bit of slide one end.

Through adopting above-mentioned technical scheme, through setting up the backup pad on the operation panel to, seted up the spout in the backup pad, cutting assembly includes the slide and sets up the tool bit on the slide, and then, the slide can slide for the backup pad through the spout to it slides along the spout to drive the tool bit, thereby, cuts convenient and practical to the books that send the inslot on the area of going up.

Optionally, the mechanism of cutting still including being used for driving the gliding drive assembly of slide along the spout, drive assembly includes driving motor, connecting piece, first stand, carousel, first fixed axle and connecting rod, be provided with the second fixed axle on the slide, driving motor sets up on the operation panel, first stand is vertical to be set up on the operation panel, the carousel rotationally sets up on first stand, driving motor passes through the connecting piece and is connected with the carousel, the one end of connecting rod is connected with the carousel through first fixed axle, and the other end passes through the second fixed axle and is connected with the slide.

Through adopting above-mentioned technical scheme, start driving motor, drive the carousel rotation on the first stand through the connecting piece, the carousel rotates and to drive the slide through the connecting rod and removes along the spout, and the slide removes and to drive the tool bit and remove along the spout, and then, cuts the books that send the inslot on the area of going up, cuts books through the means that adopts automation, has promoted the efficiency that books cut.

Optionally, the connector comprises a belt or a chain.

Through adopting above-mentioned technical scheme, through setting up the connecting piece into belt or chain, and then, driving motor work can drive the carousel through belt or chain and rotate, compares in direct output shaft with driving motor on the carousel, can effectually slow down the carousel, conveniently controls the slew velocity of carousel.

Optionally, still including being used for carrying out the tight clamping mechanism of clamp to books, clamping mechanism includes splint subassembly and is used for driving the die clamping cylinder of splint subassembly, splint subassembly is including setting up respectively in the fixed splint and the movable clamp plate of the relative both sides of conveyer belt, die clamping cylinder's one end sets up on the operation panel, and the other end is connected with the movable clamp plate.

Through adopting the above technical scheme, solid fixed splint and movable clamp plate set up respectively in the relative both sides of conveyer belt, and, die clamping cylinder's one end is fixed in on the operation panel, the other end is connected with movable cylinder, and then, can drive movable clamp plate through starting die clamping cylinder and stretch out, when die clamping cylinder drives movable clamp plate and stretches out towards the direction that is close to solid fixed splint, can press from both sides the books in the fluting on the conveyer belt and press from both sides tightly fixedly, be convenient for adopt and cut the mechanism and cut books, when die clamping cylinder drives movable clamp plate and withdraw towards the direction of keeping away from solid fixed splint, can release tight books of clamp, so that the books that cut the completion move to the destination along with the conveyer belt, the stability that books cut has been promoted.

Optionally, the clamping mechanism further comprises a second upright column and an expansion spring, the second upright column is vertically arranged on the operating platform, one end of the expansion spring is connected with the second upright column, and the other end of the expansion spring is connected with the movable clamping plate.

Through adopting above-mentioned technical scheme, through setting up second stand and expanding spring to, expanding spring's one end and second stand are connected, and the other end is connected with the removal splint, and then, through expanding spring and second stand, have promoted the stability of removal splint at the removal in-process.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the books clamped and fixed in the clamping grooves move to the cutting mechanism along with the conveying belt, the cut-over ends of the books are cut through the cutting mechanism, cut paper edge waste materials can fall into the crushing barrel, the crushing motor is started to drive the driving gear to rotate, the driving gear rotates to drive the first driven gear and the second driven gear to rotate oppositely, and then the first crushing knife roller and the second crushing knife roller are driven to rotate oppositely to crush the paper edge waste materials; through the arrangement of the paper edge recycling device, the manpower consumed by recycling the paper edge waste is reduced, and the paper edge recycling device is convenient and practical;

2. the driving motor is started, the rotary table on the first stand column is driven to rotate through the connecting piece, the rotary table rotates to drive the sliding plate to move along the sliding groove through the connecting rod, the sliding plate moves to drive the cutter head to move along the sliding groove, and then the books in the clamping grooves on the conveying belt are cut, and the books are cut through an automatic means, so that the book cutting efficiency is improved;

3. fixed splint and movable clamp plate set up respectively in the relative both sides of conveyer belt, and, die clamping cylinder's one end is fixed in on the operation panel, the other end is connected with movable cylinder, and then, can drive movable clamp plate through starting die clamping cylinder and stretch out, when die clamping cylinder drives movable clamp plate and stretches out towards the direction that is close to fixed splint, can press from both sides the books in the fluting on the conveyer belt and press from both sides tightly fixedly, be convenient for adopt and cut the mechanism and cut books, when die clamping cylinder drives movable clamp plate and draws back towards the direction of keeping away from fixed splint, can release tight books of clamp, so that the books that cut the completion remove to the destination along with the conveyer belt, the stability that books cut has been promoted.

Drawings

Fig. 1 is a schematic view of the overall structure of embodiment 1 of the present application.

Fig. 2 is an enlarged view of a portion a in fig. 1.

Fig. 3 is a schematic view of the overall structure of embodiment 2 of the present application.

Description of reference numerals: 100. an operation table; 110. a longitudinal bore; 120. a transverse bore; 130. an accommodating cavity; 140. a support plate; 141. a chute; 200. a transport mechanism; 210. a conveyor belt; 220. a card slot; 300. a cutting mechanism; 310. cutting the assembly; 311. a slide plate; 312. a cutter head; 313. a second fixed shaft; 320. a drive assembly; 321. a drive motor; 322. a connecting member; 323. a first upright post; 324. a turntable; 325. a first fixed shaft; 326. a connecting rod; 400. a paper edge waste recovery mechanism; 410. a milling drum; 411. a guide plate; 420. a size reduction assembly; 421. crushing the bracket; 422. a grinding motor; 423. a driving gear; 424. a first driven gear; 425. a first crushing cutter roll; 426. a second driven gear; 427. a second crushing cutter roll; 430. a waste conveying pipeline; 440. an exhaust fan; 500. a clamping mechanism; 510. a cleat assembly; 511. fixing the clamping plate; 512. moving the clamping plate; 520. a clamping cylinder; 530. a second upright post; 540. a telescoping spring.

Detailed Description

The present application is described in further detail below with reference to figures 1-3.

Example 1

The embodiment of the application discloses a book edge cutting and conveying device.

Referring to fig. 1 and 2, the book edge cutting and conveying device includes an operation table 100, a conveying mechanism 200, a cutting mechanism 300, and a paper edge waste recycling mechanism 400, wherein in the present embodiment, the operation table 100 is disposed on a workshop floor, and the conveying mechanism 200, the cutting mechanism 300, and the paper edge waste recycling mechanism 40 are respectively disposed on the operation table 100.

In this embodiment, the operation table 100 is a rectangular table, the upper surface of the operation table 100 is provided with a longitudinal hole 110, the side surface of the operation table 100 is provided with a transverse hole 120, an accommodating cavity 130 is disposed in the operation table 100, and the longitudinal hole 110 and the transverse hole 120 are respectively communicated with the accommodating cavity 130.

The conveying mechanism 200 includes a conveyor belt 210 disposed on the operating platform 100, and a clamping groove 220 for clamping and fixing the back of the book is disposed above the conveyor belt 210, the clamping groove 220 extends along the conveying direction of the conveyor belt 210, so that one end of the book opening is vertically disposed upward, in this embodiment, the conveying mechanism 200 can intermittently convey the book, so as to sequentially convey the book one by one to the cutting position where the cutting mechanism 300 is located.

The cutting mechanism 300 includes a cutting component 310 and a driving component 320 for driving the cutting component 310, specifically, the cutting component 310 includes a sliding plate 311 moving back and forth along a direction perpendicular to the conveying direction of the conveyor belt 210 and a cutter head 312 disposed at one end of the sliding plate 311 close to the conveyor belt 210, preferably, in this embodiment, the cutter head 312 is detachably connected to the sliding plate 311, so as to facilitate later maintenance and replacement of the cutter head 312 and the sliding plate 311; the driving assembly 320 comprises a driving motor 321 and a transmission structure, one end of the transmission structure is connected with the driving motor 321, the other end of the transmission structure is connected with the sliding plate 311, and further, the driving structure drives the sliding plate 311 to move through the driving motor 321, so that the tool bit 312 moves back and forth in the direction close to the conveying belt 210 and in the direction far away from the conveying belt 210, and further, books clamped and fixed in the clamping groove 220 are cut at intervals.

Referring to fig. 1 and 3, in particular, the driving motor 321 is disposed on the console 100, and the transmission structure includes a connecting member 322, a first upright 323, a rotating plate 324, a first fixed shaft 325 and a connecting rod 326, wherein, the driving motor 321 is fixed on the console 100, the first upright column 323 is vertically arranged on the console 100, the turntable 324 is rotatably arranged on the first upright column 323, and the driving motor 321 is connected with the turntable 324 through the connecting piece 322, in this embodiment, the connecting member 322 may be a belt or a chain, and of course, according to the actual use requirement, the output shaft of the driving motor 321 may also be directly connected to the rotating disc 324, without any limitation, the upper surface of the sliding plate 311 is provided with the second fixed shaft 313, further, one end of the connection rod 326 is rotatably connected to the turntable 324 through the first fixed shaft 325, and the other end is hinged to the slide plate 311 through the second fixed shaft 313.

In this embodiment, one end of the connecting rod 326 is connected to the turntable 324 at a position far from the center of the circle by a first fixing shaft 325.

The operation table 100 is further provided with two support plates 140 which are parallel to each other and are vertically arranged, the two support plates 140 are respectively and correspondingly provided with a sliding groove 141 facing the direction of the conveyor belt 210, and two ends of the sliding plate 311 are slidably arranged in the sliding grooves 141, that is, the sliding plate 311 can move back and forth in the sliding groove 141 along the direction close to the conveyor belt 210 and the direction far away from the conveyor belt 210, if the sliding plate 311 moves along the direction close to the conveyor belt 210, the book is cut by using the cutter head 312; on the contrary, if the slide 311 moves away from the conveyor 210, it indicates that the book is cut, and waits for the next book to be conveyed thereto; the cutting operation is continuously repeated to form the book cutting processing line.

Wherein, the waste paper recycling mechanism 400 includes a pulverizing barrel 410, a pulverizing assembly 420 and a waste conveying pipeline 430, specifically, the pulverizing barrel 410 is disposed in the accommodating cavity 130 of the console 100, and one end of the pulverizing barrel 410 penetrates through the longitudinal hole 110, one end of the waste conveying pipeline 430 penetrates through the transverse hole 120 and is connected with the other end of the pulverizing barrel 410, and one end of the pulverizing barrel 410 penetrating through the longitudinal hole 110 is provided with a guide plate 411, and further, the waste paper can be guided into the pulverizing barrel 410 through the guide plate 411, the pulverizing assembly 420 includes a pulverizing support 421, a pulverizing motor 422, a driving gear 423, a first driven gear 424, a first pulverizing knife roller 425, a second driven gear 426 and a second pulverizing knife roller 427, specifically, the waste pulverizing support 421 is vertically disposed on the console 100, the pulverizing motor 422 is fixed on the pulverizing support 421, an output shaft of the pulverizing motor 422 is connected with the driving gear 423, one end of the first pulverizing knife roller 425 is connected with the driving gear 423 through the first driven gear 424, the other end is rotatably connected to the inner wall of the crushing cylinder 410, one end of the second crushing knife roll 427 is connected with the driving gear 423 through the second driven gear 426, and the other end is rotatably connected to the inner wall of the crushing cylinder 410, wherein the driving gear 423 is respectively engaged with the first driven gear 424 and the second driven gear 426, that is, the crushing motor 422 drives the driving gear 423 to rotate, the driving gear 423 drives the first driven gear 424 and the second driven gear 426 to rotate oppositely, and further drives the first crushing knife roll 425 and the second crushing knife roll 427 to rotate oppositely, so as to crush the waste paper edge.

Wherein, the one end that waste material conveying pipe 430 is not connected with crushing section of thick bamboo 410 is provided with air exhauster 440, and then, take out with the waste material of smashing in the crushing section of thick bamboo 410 through air exhauster 440 to, realize the recovery and recycle of waste paper.

The implementation principle of the book edge cutting and conveying device in the embodiment of the application is as follows: the book is held and fixed in the slot 220 of the conveyor belt 210, and moves to the cutting mechanism 300 along with the conveyor belt 210, the driving motor 321 is started to drive the turntable 324 arranged on the first upright column 323 to rotate, the turntable 324 drives the sliding plate 311 to slide along the sliding groove 141 on the supporting plate 140 through the connecting rod 326, the sliding plate 311 drives the cutter head 312 to cut books at intervals, waste materials cut out by the books are guided to the first crushing cutter roll 425 and the second crushing cutter roll 427 through the guide plate 411 of the crushing cylinder 410, by activating the grinding motor 422 to drive the driving gear 423 to rotate, the driving gear 423 rotates to drive the first driven gear 424 and the second driven gear 426 to rotate in opposite directions, further, the first crushing knife roll 425 and the second crushing knife roll 427 are driven to rotate oppositely to crush the paper edge waste, the crushed waste is dropped to the bottom of the crushing cylinder 410, and the waste in the crushing cylinder 410 is extracted by the exhaust fan 440; through the setting of this application, reduced the manpower that retrieves paper limit waste material and consumed, convenient and practical.

Example 2

Referring to fig. 3, another embodiment of the present invention is shown, and as shown in the drawing, the present embodiment is different from the previous embodiment in that the present embodiment further includes a clamping mechanism 500 for clamping a book, wherein the clamping mechanism 500 includes a clamping plate assembly 510 and a clamping cylinder 520 for driving the clamping plate assembly 510, specifically, the clamping plate assembly 510 includes a fixed clamping plate 511 and a movable clamping plate 512, in the present embodiment, the fixed clamping plate 511 is an L-shaped plate and is disposed near a guide plate 411 of the crushing cylinder 410, the movable clamping plate 512 is a rectangular plate, the clamping cylinder 520 is disposed on the console 100 and is located at a lower portion of the sliding plate 311, a piston rod of the clamping cylinder 520 is connected to the movable clamping plate 512, and further, the piston rod of the clamping cylinder 520 drives the movable clamping plate 512 to approach the fixed clamping plate 511, so as to clamp the book by the movable clamping plate 512 and the fixed clamping plate 511.

In this embodiment, the clamping mechanism 500 further includes a second upright post 530 and a telescopic spring 540, the second upright post 530 is vertically disposed on the operation table 100, one end of the telescopic spring 540 is connected to the second upright post 530, and the other end is connected to the movable clamp plate 512, so that the movement stability of the movable clamp plate 512 is improved through the second upright post 530 and the telescopic spring 540.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The book edge cutting and conveying device is characterized by comprising an operating platform (100), a conveying mechanism (200), a cutting mechanism (300) and a paper edge waste recycling mechanism (400); wherein the content of the first and second substances,

the operating table (100) is provided with a longitudinal hole (110) and a transverse hole (120) respectively, an accommodating cavity (130) is arranged in the operating table (100), and the longitudinal hole (110) and the transverse hole (120) are communicated with the accommodating cavity (130) respectively;

the conveying mechanism (200) comprises a conveying belt (210) and a clamping groove (220) arranged on the conveying belt (210), and the conveying belt (210) is arranged on the operating platform (100);

the cutting mechanism (300) is arranged on the operating platform (100);

the paper edge waste recycling mechanism (400) comprises a crushing barrel (410) and a crushing assembly (420), the crushing barrel (410) is accommodated in an accommodating cavity (130) of the operating platform (100), one end of the crushing barrel penetrates through a longitudinal hole (110) of the operating platform (100), the crushing assembly (420) comprises a crushing support (421), a crushing motor (422), a driving gear (423), a first driven gear (424), a first crushing cutter roller (425), a second driven gear (426) and a second crushing cutter roller (427), the crushing support (421) is vertically arranged on the operating platform (100), one end of the crushing motor (422) is arranged on the crushing support (421), the other end of the crushing motor is connected with the driving gear (423), one end of the first crushing cutter roller (425) is meshed with the driving gear (423) through the first driven gear (424), and the other end of the first crushing cutter roller is rotatably connected to the inner wall of the crushing barrel (410), one end of the second crushing knife roll (427) is meshed with the driving gear (423) through a second driven gear (426), and the other end is rotatably connected with the inner wall of the crushing cylinder (410).

2. The book edge cutting and conveying device according to claim 1, wherein the paper edge waste recycling mechanism (400) further comprises a waste conveying pipe (430) and an exhaust fan (440), one end of the waste conveying pipe (430) passes through the transverse hole (120) of the operating platform (100) and is connected with the crushing cylinder (410), and the other end of the waste conveying pipe is connected with the exhaust fan (440).

3. A device as claimed in claim 1, wherein the crushing cylinder (410) is provided with a guide plate (411) at the end thereof which extends out of the longitudinal hole (110).

4. The book edge cutting and conveying device according to claim 1, wherein two supporting plates (140) which are parallel to each other and are vertically arranged are arranged on the operating platform (100), a sliding groove (141) is formed in each supporting plate (140), the cutting mechanism (300) comprises a cutting assembly (310) for cutting the book, and the cutting assembly (310) comprises a sliding plate (311) which is slidably arranged in the sliding groove (141) and a cutter head (312) which is connected to one end of the sliding plate (311).

5. The book edge cutting and conveying device according to claim 4, wherein the cutting mechanism (300) further comprises a driving assembly (320) for driving the sliding plate (311) to slide along the sliding groove (141), the driving assembly (320) comprises a driving motor (321), a connecting member (322), a first upright post (323), a rotating disc (324), a first fixed shaft (325) and a connecting rod (326), the sliding plate (311) is provided with a second fixed shaft (313), the driving motor (321) is arranged on the operating table (100), the first upright post (323) is vertically arranged on the operating table (100), the rotating disc (324) is rotatably arranged on the first upright post (323), the driving motor (321) is connected with the rotating disc (324) through the connecting member (322), and one end of the connecting rod (326) is connected with the rotating disc (324) through the first fixed shaft (325), the other end is connected with the sliding plate (311) through a second fixed shaft (313).

6. A book edge cutting conveyor according to claim 5, characterized in that the connecting element (322) comprises a belt or a chain.

7. The book edge cutting and conveying device according to claim 1, further comprising a clamping mechanism (500) for clamping the book, wherein the clamping mechanism (500) comprises a clamping plate assembly (510) and a clamping cylinder (520) for driving the clamping plate assembly (510), the clamping plate assembly (510) comprises a fixed clamping plate (511) and a movable clamping plate (512) which are respectively arranged at two opposite sides of the conveying belt (210), one end of the clamping cylinder (520) is arranged on the operating platform (100), and the other end of the clamping cylinder is connected with the movable clamping plate (512).

8. The book edge cutting and conveying device according to claim 7, wherein the clamping mechanism (500) further comprises a second upright (530) and a telescopic spring (540), the second upright (530) is vertically arranged on the operating platform (100), one end of the telescopic spring (540) is connected with the second upright (530), and the other end of the telescopic spring is connected with the movable clamping plate (512).