Automatic pencil board bundling and clamping line

Abstract

The invention provides an automatic pencil plate binding and clamping line, relates to the technical field of pencil production, and solves the problems that more equipment needs to be used, the space of a factory is occupied and the working efficiency is reduced due to the fact that the processes of pressure maintaining and pressure releasing of an existing pencil plate are carried out in two lines. The device comprises a first rack and a plurality of binding and clamping frames used for containing pencil plates and maintaining the pressure of the pencil plates, a clamping and unclamping device is arranged at the left bottom in the first rack, and a binding and clamping frame circulating stacking device is arranged on the right side of the clamping and unclamping device; the clamping jaw assemblies are arranged on the upper portion in the first machine frame and used for grabbing pencil plates and a bundle clamping frame, and the driving assembly is arranged on the first machine frame and used for driving the clamping jaw assemblies to move in three directions. The pressure maintaining and pressure releasing device has the beneficial effects that pressure maintaining and pressure releasing of the pencil plate can be rapidly achieved, the overall device is small in occupied space, the overall device is more concise, operation is more convenient and rapid, and the overall production efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of pencil production, in particular to an automatic pencil plate clamping line. Background Art

[0002] Pencil boards are the most commonly used writing tools for primary school students, art students, draftsmen, etc. They are mainly composed of three parts: the refill, the pen body, and the pen body coating. In the production process of pencils, the pencil boards need to be clamped and pressed to ensure the bonding effect. After the pressure is maintained, the pencils are removed from the pressure plate and enter the subsequent process. The existing pencil board clamping and pressure maintenance and decompression and clamping processes are divided into two lines, which requires more equipment and occupies the space of the factory. The two lines are running at the same time, which is troublesome to transport and reduces work efficiency. Summary of the invention

[0003] The purpose of the invention is to solve the problem that the existing pencil board has two production lines for pressure keeping and pressure releasing, which requires more equipment, occupies plant space and reduces work efficiency.

[0004] To achieve the above object, the present invention adopts the following technical solutions:

[0005] The pencil board clamping automatic line is characterized in that it includes a first frame and a plurality of clamping frames for placing pencil boards to maintain pressure on the pencil boards, a clamping and unclamping device for pressurizing and depressurizing the clamping frame is arranged at the left bottom of the first frame, a feeding conveying device is arranged on the inner wall of the rear end of the first frame, a discharging conveying device is arranged on the inner wall of the front end of the first frame, a clamping frame circulation stacking device is arranged on the right side of the clamping and unclamping device, and also includes a plurality of clamping claw assemblies arranged on the upper part of the first frame for grabbing pencil boards and clamping claw frames, and a driving assembly arranged on the first frame for driving the clamping claw assembly to move in three directions.

[0006] The further improvement is that the bundle clamp frame comprises a frame body for placing the pencil board; at least one group of pressure-maintaining clamping components arranged at one end or two opposite ends of the frame body, the pressure-maintaining clamping component comprises a pressure-maintaining top plate arranged outside the frame, the pressure-maintaining top plate is fixedly connected to one end of a pressure-maintaining clamping connecting rod on a side facing the frame body, the other end of the pressure-maintaining clamping connecting rod slides through the frame body and is fixedly connected to the pressure-maintaining clamping plate, the pressure-maintaining clamping plate is rotatably connected to a pressure-maintaining push rod assembly on a side facing the pressure-maintaining top plate, and a return spring is sleeved on the pressure-maintaining clamping connecting rod between the pressure-maintaining top plate and the outer wall of the frame; a pressure-maintaining support top block arranged at a position corresponding to the inner wall of the frame and the pressure-maintaining push rod assembly and used to cooperate with the pressure-maintaining clamping assembly, the top of the pressure-maintaining support top block is provided with an inclined surface towards the direction of the pressure-maintaining clamping plate, and a pressure-maintaining limit block is provided in the middle of a side of the pressure-maintaining support top block facing the pressure-maintaining clamping plate; a frame pressure-releasing push rod through hole is opened at the bottom of the frame body corresponding to the pressure-maintaining push rod assembly.

[0007] A further improvement is that a frame bottom plate is installed at the bottom of the frame, a plurality of pencil board support bottom rods are arranged above the frame bottom plate along the length direction of the frame, and the frame pressure release ejector rod through holes are opened at the frame bottom plate corresponding to the pressure maintaining ejector rod assembly.

[0008] A further improvement is that a partitioning splint is arranged between the middle parts of the front and rear ends of the frame, and pressure-maintaining clamping components are symmetrically arranged on the frames on both sides of the partitioning splint. The partitioning splint cooperates with the pressure-maintaining clamping components of the frame on one side to form a first pressure-maintaining zone, and the partitioning splint cooperates with the pressure-maintaining clamping components of the frame on the other side to form a second pressure-maintaining zone.

[0009] A further improvement is that a rotating support seat is provided on the side of the pressure-maintaining splint facing the pressure-maintaining top plate, and the pressure-maintaining top rod assembly includes a top rod sleeve and a threaded top rod, one end of the top rod sleeve is rotatably connected to the rotating support seat, and one end of the threaded top rod is threadedly connected to the other end of the top rod sleeve.

[0010] A further improvement is that one end of the push rod sleeve is rotatably connected to the rotating support seat through a sleeve shaft, the other end of the push rod sleeve is fixedly connected to a push rod nut, and one end of the threaded push rod is threadedly connected to the push rod nut and extends into the push rod sleeve.

[0011] A further improvement is that the threaded push rod is connected to the push rod sleeve through its threaded connection, and the length of the threaded push rod can be adjusted by rotating the threaded push rod, and the clamping distance between the pressure-holding splint and the pressure-holding splint or the separating splint at the other end can be adjusted by adjusting the length of the threaded push rod, thereby achieving the adjustment of the pressure-holding pressure.

[0012] A further improvement is that a limiting screw is threadedly connected to the middle of one side of the pressure-maintaining top plate facing the pressure-maintaining clamping plate.

[0013] A further improvement is that a pressure-maintaining clamping connecting rod through hole is opened on the frame wall at a position corresponding to the pressure-maintaining clamping connecting rod, and the pressure-maintaining clamping connecting rod slides through the pressure-maintaining clamping connecting rod through hole.

[0014] A further improvement is that the four corners of the frame are provided with docking holes, and also include a docking plug, a support ring is provided on the outer periphery of the middle part of the docking plug, and the two ends of the docking plug are respectively inserted into the docking holes of the two groups of frames to facilitate the stacking of the clamp frames.

[0015] A further improvement is that lifting support plates are arranged on both side walls of the frame.

[0016] A further improvement is that the clamping and de-clamping device includes a workbench for placing the clamp frame, the workbench is divided into a pressurizing area and a de-pressurizing area, a pressurizing component for pressurizing the clamp frame is slidably arranged around the pressurizing area, a de-pressurizing component for de-pressurizing the clamp frame is slidably arranged below the de-pressurizing area, and a de-pressurizing push rod through hole cooperating with the de-pressurizing component is opened on the workbench in the de-pressurizing area.

[0017] A further improvement is that it also includes a lower base and an upper base arranged above the lower base, the workbench is arranged on the upper surface of the upper base, and a movable platform is arranged under the upper base of the pressurization area and the decompression area for sliding back and forth, and the left and right ends of the movable platform extend out of the workbench and extend upward and are symmetrically fixedly connected to a cylinder mounting seat.

[0018] A further improvement is that the pressurizing assembly includes a pressurizing hydraulic cylinder, which is mounted on a cylinder mounting seat of a movable platform in the pressurizing area, and an output end of the pressurizing hydraulic cylinder is fixedly connected to a pressurizing top plate toward the workbench.

[0019] A further improvement is: the decompression assembly includes a decompression cylinder and a buffer cylinder, the buffer cylinder is installed on the cylinder mounting seat of the mobile platform in the decompression zone, the output end of the buffer cylinder is fixedly connected to a buffer top plate facing the workbench, the decompression cylinder is installed on the bottom surface of the mobile platform in the decompression zone, and the output end of the decompression cylinder extends upward from the mobile platform and is fixedly connected to a decompression push rod.

[0020] A further improvement is that a group of moving platform guide rails and moving platform guide racks are symmetrically arranged on the upper surfaces of the left and right ends of the lower base, and a moving platform slider matching with the moving platform guide rail is arranged at the bottom surface of the moving platform corresponding to the moving platform guide rail. The moving platform is slidably arranged on the moving platform guide rail through the moving platform slider, and a moving platform driving motor is arranged on the bottom surface of the moving platform.

[0021] A further improvement is that the output end of the mobile platform driving motor is transmission-connected to a mobile platform driving transmission shaft, both ends of the mobile platform driving transmission shaft are fixedly connected to mobile platform driving gears, and the mobile platform driving gears at both ends are meshed with the mobile platform guide racks on both ends of the lower base.

[0022] A further improvement is that a plurality of table frame positioning sensors are arranged on the workbench.

[0023] A further improvement is that: the pressurization area and the depressurization area are both provided with a plurality of frame limit blocks and a table clamping assembly for fixing the clamp frame during pressurization / depressurization.

[0024] A further improvement is that the clamping jaw assembly includes a group of clamping jaw support plates symmetrically arranged front and back, a clamping jaw connecting plate arranged between the middle parts of the upper ends of a group of clamping jaw support plates, a pencil board clamping jaw assembly for clamping a pencil board is arranged on the bottom surface of the clamping jaw connecting plate, and a group of frame clamping jaw assemblies are arranged on the left and right ends of the connecting plate; the frame clamping jaw assembly includes a clamping hydraulic cylinder, the tail of the clamping hydraulic cylinder is hinged on the connecting plate through a hydraulic cylinder hinge seat, the output end of the clamping hydraulic cylinder is hinged to one end of the connecting rod through a connecting rod hinge joint, and the other end of the connecting rod is fixedly sleeved on the frame clamping jaw rotating shaft, the frame clamping jaw rotating shaft is rotatably connected to the ends of the two clamping jaw support plates away from the clamping jaw connecting plate, and the two ends of the frame clamping jaw rotating shaft extend respectively from two clamping jaw support plates fixedly connected to the frame clamping jaw; the pencil board clamping jaw assembly includes a double-headed cylinder installed in the middle of the bottom surface of the clamping jaw connecting plate, and the two output ends of the double-headed cylinder extend to the left and right ends respectively and are fixedly connected to the pencil board clamping jaws through the pencil board clamping jaw connecting plate.

[0025] A further improvement is that the driving assembly includes a group of x-axis support plates symmetrically installed on the upper ends of the front and rear ends of the first frame, x-axis movable plates that are slid left and right at both ends and are arranged on the two x-axis support plates, a plurality of y-axis movable plates that are slidably connected to the left side surfaces of the x-axis movable plates, and a z-axis lifting rod that is slidably connected to the left side surfaces of the y-axis movable plates up and down, and the bottom end of the z-axis lifting rod is fixedly connected to the upper surface of the clamp connecting plate.

[0026] Further improvement is: an x-guide rail and an x-guide rack are arranged along the length direction of the support plate, and the bottom of the front and rear ends of the x-moving plate are fixedly connected with x-guide sliders cooperating with the x-guide rails. It also includes an x-drive motor arranged on the front and rear ends of the x-moving plate, and the output end of the x-drive motor extends downward and is fixedly connected with an x-drive gear, and the x-drive gear is meshed with the x-guide rack.

[0027] A further improvement is that a y-guide rail and a y-guide rack are arranged on the left side of the x-axis moving plate along the length direction, a y-guide slider cooperating with the y-guide rail is arranged on the right side of the y-axis moving plate, and also includes a y-axis driving motor arranged on the left side of the x-axis moving plate, the output end of the y-axis driving motor passes through the x-axis moving plate and is fixedly connected to a y-axis driving gear, and the y-axis driving gear is meshed with the y-axis guide rack.

[0028] A further improvement is that: the z-direction lifting rod is provided with a z-direction guide rail and a z-direction guide rack along the length direction on the side facing the x-direction moving plate, the left side of the y-direction moving plate is provided with a z-direction slider cooperating with the z-direction guide rail, and also includes a z-direction driving motor arranged on the right side of the y-direction moving plate, the output end of the z-direction driving motor passes through the x-direction moving plate and is fixedly connected with a z-direction driving gear, and the z-direction driving gear is meshed with the z-direction guide rack.

[0029] A further improvement is that an x-direction positioning sensor is arranged at the front end of the x-direction moving plate, a frame detection sensor is arranged in the middle of the left end surface of the x-direction moving plate, a y-direction positioning sensor is arranged on the right side of the y-direction moving plate, and a z-direction positioning sensor is arranged on the left side of the y-direction moving plate.

[0030] A further improvement is that a clamping jaw positioning sensor is provided on the clamping jaw connecting plate.

[0031] A further improvement is that protective covers for protecting the frame clamping jaw assembly are provided on the left and right ends of the clamping jaw support plate.

[0032] Further improvement is: the bundle clamp frame circulation stacking device comprises a stacking frame, the stacking frame is divided into a pressure-maintaining stacking area located on one side of the pressurizing area and a pressure-releasing stacking area located on one side of the pressure-releasing area, and a bundle clamp frame conveying belt for conveying the bundle clamp frame and a bundle clamp frame conveying motor for driving the bundle clamp frame conveying belt to operate are arranged at the bottom of the stacking frame;

[0033] A group of first lifting cylinders for driving the clamping frame with the pencil board to be pressure-maintained to descend are symmetrically arranged on the stacking racks on both sides of the pressure-maintaining stacking area, and a first lifting plate is fixedly connected to the output end of the first lifting cylinder. Two groups of first supporting electric push rods for supporting the clamping frame are symmetrically arranged on the stacking racks on both sides of the pressure-maintaining stacking area;

[0034] A group of second lifting cylinders for driving the clamping frame with the pencil board to be depressurized to rise are symmetrically arranged on the stacking racks on both sides of the depressurization stacking area, and the output end of the second lifting cylinder is fixedly connected to the second lifting plate, and two groups of second supporting electric push rods for supporting the clamping frame are symmetrically arranged on the stacking racks on both sides of the depressurization stacking area;

[0035] The two side walls of the clamp frame are provided with lifting support plates matched with the first lifting plate and the second lifting plate.

[0036] Compared with the existing technology, the above technical solution has the following beneficial effects:

[0037] Through the clamping frame, clamping and unclamping device, the upper clamping claw assembly, the driving assembly and the clamping frame circulation stacking device, the pencil board can be quickly pressed and released. Pressurization, release, feeding and discharging are combined together. The overall equipment occupies a small space, is more concise, and is more convenient and quick to operate, which improves the overall production efficiency.

[0038] By integrating the frame clamping claw assembly and the pencil board clamping claw assembly into one assembly, the pencil board and the clamping frame can be clamped and moved by the same driving assembly, thereby reducing unnecessary equipment, saving equipment space, making the whole more concise, and making the operation more convenient.

[0039] The clamp frame can maintain pressure on the pencil board through the pressure-maintaining clamping assembly and the pressure-maintaining support top block without the need for continuous pressure from external equipment, thus saving space for the clamp frame; the clamp frame can be moved when the pressure is maintained to facilitate subsequent operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0041] Figure 1 It is a three-dimensional schematic diagram of the present invention;

[0042] Figure 2 It is a front structural schematic diagram of the present invention;

[0043] Figure 3 It is a schematic diagram of the top view of the structure of the present invention;

[0044] Figure 4 It is a side structural schematic diagram of the present invention;

[0045] Figure 5 It is a three-dimensional structural schematic diagram of the clamp frame located on the clamping and de-clamping device in the present invention;

[0046] Figure 6 It is a three-dimensional structural schematic diagram of the clamp frame in the present invention;

[0047] Figure 7 It is a schematic diagram of the top view of the structure of the clamp frame in the present invention;

[0048] Figure 8 It is a schematic diagram of the main structure of the clamp frame in the present invention;

[0049] Fig. 9 It is a side structural schematic diagram of the clamp frame in the present invention;

[0050] Fig.10 It is a bottom view structural schematic diagram of the clamp frame in the present invention;

[0051] Fig.11 The present invention Figure 7 A magnified view of part A in FIG.

[0052] Fig.12 The present invention Figure 7 A magnified view of part B in FIG.

[0053] Fig.13 It is a structural schematic diagram of the frame in the present invention;

[0054] Fig.14 The present invention Fig.13 The enlarged view of the C part in FIG.

[0055] Fig.15 It is a three-dimensional structural schematic diagram of the pressure-maintaining clamping assembly in the present invention;

[0056] Fig.16 It is a schematic diagram of the top view of the pressure-maintaining clamping assembly in the present invention;

[0057] Fig.17 It is a schematic diagram of the main structure of the pressure-maintaining clamping assembly of the present invention;

[0058] Fig.18 It is a schematic diagram of the three-dimensional structure of the clamping and de-clamping device in the present invention;

[0059] Fig.19 It is a schematic diagram of the top view of the clamping and de-clamping device in the present invention;

[0060] Fig. 20 It is a schematic diagram of the main structure of the clamping and de-clamping device of the present invention;

[0061] Fig.21 It is a side view structural schematic diagram of the clamping and de-clamping device in the present invention;

[0062] Fig. 22 It is a bottom view structural schematic diagram of the clamping and de-clamping device of the present invention;

[0063] Fig.23 It is a schematic diagram of the three-dimensional structure of the clamping jaw assembly and the driving assembly in the present invention;

[0064] Fig.24 It is a three-dimensional structural schematic diagram of the clamping jaw assembly in the present invention;

[0065] Fig.25 is a schematic diagram of the top view of the clamping jaw assembly in the present invention;

[0066] Fig.26 It is a bottom view structural schematic diagram of the clamping jaw assembly in the present invention;

[0067] Fig. 27 It is a schematic diagram of the main structure of the clamping jaw assembly of the present invention;

[0068] Fig.28is a schematic side view of the structure of the clamping jaw assembly of the present invention;

[0069] Fig.29 It is a schematic diagram of the three-dimensional structure of the x-direction support plate and the x-direction moving plate in the present invention;

[0070] Fig.30 It is a schematic diagram of the left structure of the x-axis support plate and the x-axis moving plate;

[0071] Fig.31 It is a schematic diagram of the three-dimensional structure of the y-direction moving plate and the z-direction lifting rod in the present invention;

[0072] Fig.32 It is a three-dimensional structural schematic diagram of the y-direction moving plate and the z-direction lifting rod in the present invention at another angle;

[0073] Fig.33 It is a front structural schematic diagram of the y-direction moving plate and the z-direction lifting rod in the present invention;

[0074] Fig.34 The present invention is the present invention Fig.23 The enlarged view of the C part in FIG.

[0075] Fig.35 It is a schematic diagram of the three-dimensional structure of the clamp frame in the present invention being located on the clamp frame circulation stacking device;

[0076] Fig.36 It is a schematic diagram of the three-dimensional structure of the clamp frame circulation stacking device in the present invention;

[0077] Fig.37 It is a schematic diagram of the top view of the structure of the clamp frame circulation stacking device in the present invention;

[0078] Fig.38 It is a side structural schematic diagram of the clamp frame circulation stacking device in the present invention;

[0079] Fig.39 It is a schematic diagram of the main structure of the clamp frame circulation stacking device in the present invention;

[0080] Fig.40 It is a schematic block diagram of the circulation process structure of the clamp frame in the present invention.

[0081] Description of reference numerals: first frame 1, feeding conveying device 2, discharging conveying device 3;

[0082] Clamp frame a, frame body a1, partition clamp plate a2, frame bottom plate a3, frame pressure release ejector rod through hole a31, vent hole a32, pencil board support bottom rod a4, pressure-maintaining clamping assembly a5, pressure-maintaining top plate a51, pressure-maintaining clamping connecting rod a52, pressure-maintaining clamp plate a53, rotating support seat a54, pressure-maintaining ejector rod assembly a55, ejector rod sleeve a551, threaded ejector rod a552, ejector rod nut a553, sleeve rotating shaft a554, limiting screw a56, return spring a57, docking plug a6, pressure-maintaining support ejector block a7, inclined surface a71, pressure-maintaining limiting block a72, docking jack a11, first pressure-maintaining area a12, second pressure-maintaining area a13, pressure-maintaining clamping connecting rod through hole a14;

[0083] Claw assembly b, claw support plate b1, claw connecting plate b2, frame claw assembly b3, clamping hydraulic cylinder b31, hydraulic cylinder hinge seat b32, connecting rod hinge joint b33, connecting rod b34, frame claw rotating shaft b35, frame claw b36, claw positioning sensor b4, protective cover b5, pencil board claw assembly b6, double-head cylinder b61, pencil board claw connecting plate b62, pencil board claw b63;

[0084] Drive assembly c, x-axis support plate c1, x-axis guide rail c11, x-axis guide rack c12, x-axis drive motor c2, x-axis drive gear c21, x-axis movable plate c3, y-axis guide rail b31, y-axis guide rack c32, x-axis slider c33, y-axis movable plate c4, y-axis slider c41, z-axis slider c42, y-axis drive motor c5, y-axis drive gear c51, z-axis lifting rod c6, z-axis guide rail c61, z-axis guide rack c62, z-axis drive motor c7, z-axis drive gear c71, x-axis positioning sensor c8, frame detection sensor c9, y-axis positioning sensor c10, z-axis positioning sensor c11;

[0085] Clamping and de-clamping device d, upper base d1, lower base d2, mobile platform guide rail d21, mobile platform guide rack d22, workbench d3, pressurizing area d31, depressurizing area d32, platform depressurizing ejector rod through hole d33, frame limit block d34, table clamping assembly d35, table frame positioning sensor d36, mobile platform drive motor d4, mobile platform drive transmission shaft d41, mobile platform drive gear d42, mobile platform d5, mobile platform slider d51, pressurizing hydraulic cylinder d6, pressurizing ejector plate d61, depressurizing cylinder d7, depressurizing ejector rod d71;

[0086] The bundle clamp frame circulating stacking device e, the stacking frame e1, the pressure maintaining stacking area e2, the pressure releasing stacking area e3, the bundle clamp frame conveying motor e4, the bundle clamp frame conveying belt e41, the first lifting cylinder e5, the first lifting plate e51, the first supporting electric push rod e6, the second lifting cylinder e7, the second lifting plate e71, and the second supporting electric push rod e8. DETAILED DESCRIPTION

[0087] See also Figure 1-Figure 40 As shown, the technical solution adopted in this specific embodiment is: a pencil board clamping automatic line, including a first frame 1 and a plurality of clamping frames a for placing pencil boards to maintain pressure on the pencil boards, a clamping and unclamping device d for pressurizing and depressurizing the clamping frame is arranged at the left bottom of the first frame 1, a feeding conveying device 2 is arranged on the inner wall of the rear end of the first frame 1, and a discharging conveying device 3 is arranged on the inner wall of the front end of the first frame 1, a clamping frame circulation stacking device e is arranged on the right side of the clamping and unclamping device d, and also includes a plurality of clamping claw assemblies b arranged on the upper inner part of the first frame 1 for grabbing pencil boards and grabbing clamping frames, and a driving assembly c arranged on the first frame 1 for driving the clamping claw assembly b to move in three directions.

[0088] Wherein, the clamp frame a comprises a frame body a1 for placing pencil boards; at least one group of pressure-maintaining clamping components a5 are arranged at one end or two opposite ends of the frame body a1, and the pressure-maintaining clamping components a5 comprise a pressure-maintaining top plate a51 arranged outside the frame body a1, and one end of a pressure-maintaining clamping connecting rod a52 is fixedly connected to the side of the pressure-maintaining top plate a51 facing the frame body a1, and the other end of the pressure-maintaining clamping connecting rod a52 slides through the frame body a1 and is fixedly connected to a pressure-maintaining clamping plate a53, and the pressure-maintaining clamping plate a53 is rotatably connected to a pressure-maintaining top rod component a55 on the side facing the pressure-maintaining top plate a51, and a return spring a57 is sleeved on the pressure-maintaining clamping connecting rod a52 between the pressure-maintaining top plate a51 and the outer wall of the frame body a1;

[0089] A pressure-maintaining support top block a7 is arranged at the position corresponding to the pressure-maintaining ejector rod assembly a55 and is used to cooperate with the pressure-maintaining clamping assembly a5. An inclined surface a71 is arranged on the top of the pressure-maintaining support top block a7 toward the pressure-maintaining clamping plate a53. A pressure-maintaining limit block a72 is arranged in the middle of one side of the pressure-maintaining support top block a7 facing the pressure-maintaining clamping plate a53.

[0090] A frame pressure-releasing ejector rod through hole a31 is provided at the bottom of the frame a1 at a position corresponding to the pressure-maintaining ejector rod assembly a55.

[0091] Among them, a frame bottom plate a3 is installed at the bottom of the frame a1, and a plurality of pencil board supporting bottom rods a4 are arranged above the frame bottom plate a3 along the length direction of the frame a1, and the frame decompression ejector rod through hole a31 is opened at the frame bottom plate a3 corresponding to the pressure maintaining ejector rod assembly a55.

[0092] Among them, a partition plate a2 is arranged between the middle parts of the front and rear ends of the frame body a1, and pressure-maintaining clamping components a5 are symmetrically arranged on the frame body a1 on both sides of the partition plate a2. The partition plate a2 cooperates with the pressure-maintaining clamping component a5 at the left end of the frame body a1 to form a first pressure-maintaining area a12, and the partition plate a2 cooperates with the pressure-maintaining clamping component a5 at the right end of the frame body a1 to form a second pressure-maintaining area a13.

[0093] Among them, a rotating support seat a54 is arranged in the middle of one side of the pressure-maintaining clamp a53 facing the pressure-maintaining top plate a51, and the pressure-maintaining top rod assembly a55 includes a top rod sleeve a551 and a threaded top rod a552, one end of the top rod sleeve a551 is rotatably connected to the rotating support seat a54, and one end of the threaded top rod a552 is threadedly connected to the other end of the top rod sleeve a551.

[0094] Among them, one end of the push rod sleeve a551 is rotatably connected to the rotating support seat a54 through a sleeve rotating shaft a554, and the other end of the push rod sleeve a551 is fixedly connected to the push rod nut a553, and one end of the threaded push rod a552 is threadedly connected to the push rod nut a553 and extends into the push rod sleeve a551.

[0095] Among them, the threaded push rod a552 is connected to the push rod sleeve a551 through its threaded connection, and the length of the threaded push rod a552 can be adjusted by rotating the threaded push rod a552. The clamping distance between the pressure-holding splint a53 and the pressure-holding splint a53 at the other end or the partition splint a2 can be adjusted by adjusting the length of the threaded push rod a552, thereby realizing the adjustment of the pressure-holding pressure.

[0096] Among them, the middle part of the pressure-maintaining top plate a51 facing the pressure-maintaining clamping plate a53 is threadedly connected with a limiting screw a56.

[0097] A pressure-maintaining clamping connecting rod through hole a14 is provided on the wall of the frame a1 at a position corresponding to the pressure-maintaining clamping connecting rod a52, and the pressure-maintaining clamping connecting rod a52 slides through the pressure-maintaining clamping connecting rod through hole a14.

[0098] The frame a1 has four corners with docking sockets a11 extending therethrough, and also includes a docking plug a6. A support ring is provided on the outer periphery of the middle of the docking plug a6. Both ends of the docking plug a6 are respectively inserted into the docking sockets a11 of the two groups of frames a1 to facilitate the stacking of the clamp frames.

[0099] Wherein, lifting support plates are arranged on both side walls of the frame a1.

[0100] Among them, the clamping and de-clamping device d includes a workbench d3 for placing the clamp frame, and the workbench d3 is divided into a pressurizing area d31 and a depressurizing area d32. A pressurizing component for pressurizing the clamp frame a is slidably arranged around the pressurizing area d31, and a depressurizing component for depressurizing the clamp frame a is slidably arranged below the depressurizing area d32. A depressurizing push rod through hole d33 cooperating with the depressurizing component is opened on the workbench d3 in the depressurizing area d32.

[0101] It also includes a lower base d2 and an upper base d1 arranged above the lower base d2. The workbench d3 is arranged on the upper surface of the upper base d1. A movable platform d5 is arranged under the upper base d1 of the pressurization area d31 and the decompression area d32 to slide forward and backward. The left and right ends of the movable platform d5 extend out of the workbench d3 and extend upward to be symmetrically fixedly connected with a cylinder mounting seat.

[0102] The pressurizing component includes a pressurizing hydraulic cylinder d6, which is mounted on a cylinder mounting seat of a movable platform d5 in the pressurizing area d31, and an output end of the pressurizing hydraulic cylinder d6 is fixedly connected to a pressurizing top plate d61 toward the workbench d3.

[0103] Among them, the decompression assembly includes a decompression cylinder d7 and a buffer cylinder, the buffer cylinder is installed on the cylinder mounting seat of the movable platform d5 of the decompression zone d32, the output end of the buffer cylinder is fixedly connected with a buffer top plate toward the workbench d3, the decompression cylinder d7 is installed on the bottom surface of the movable platform d5 of the decompression zone d32, and the output end of the decompression cylinder d7 extends upward from the movable platform d5 and is fixedly connected with a decompression push rod d71.

[0104] Among them, a group of moving platform guide rails d21 and moving platform guide racks d22 are symmetrically arranged on the upper surfaces of the left and right ends of the lower base d2, and a moving platform slider d51 matching with the moving platform guide rail d21 is arranged at the bottom surface of the moving platform d5 corresponding to the moving platform guide rail d21. The moving platform d5 is slidably set on the moving platform guide rail d21 through the moving platform slider d51, and a moving platform driving motor d4 is arranged on the bottom surface of the moving platform d5.

[0105] Among them, the output end of the mobile platform driving motor d4 is transmission-connected to the mobile platform driving transmission shaft d41, and the two ends of the mobile platform driving transmission shaft d41 are fixedly connected to the mobile platform driving gear d42, and the mobile platform driving gear d42 at both ends are meshed with the mobile platform guide racks d22 on the two ends of the lower base d2.

[0106] Among them, a plurality of table frame positioning sensors d36 are arranged on the workbench d3.

[0107] The pressurization area d31 and the depressurization area d32 are both provided with a plurality of frame limit blocks d34 and a table clamping assembly d35 for fixing the clamp frame a during pressurization / depressurization.

[0108] The clamping jaw assembly b comprises a group of clamping jaw support plates b1 symmetrically arranged front and back, a clamping jaw connecting plate b2 arranged between the middle parts of the upper ends of a group of clamping jaw support plates b1, a pencil board clamping jaw assembly b6 for clamping a pencil board is arranged on the bottom surface of the clamping jaw connecting plate b2, and a group of frame clamping jaw assemblies b3 are arranged on the left and right ends of the connecting plate b2; the frame clamping jaw assembly b3 comprises a clamping hydraulic cylinder b31, the tail of the clamping hydraulic cylinder b31 is hinged to the connecting plate b2 through a hydraulic cylinder hinge seat b32, and the output end of the clamping hydraulic cylinder b31 is hinged to the connecting rod b through a connecting rod hinge joint b33 The connecting rod b34 is one end of the connecting rod b34, and the other end of the connecting rod b34 is fixedly sleeved on the frame clamping shaft b35. The frame clamping shaft b35 is rotatably connected to the ends of the two clamping support plates b1 away from the clamping connecting plate b2. The two ends of the frame clamping shaft b35 extend out of the two clamping support plates b1 and are fixedly connected to the frame clamping b36; the pencil board clamping assembly b6 includes a double-headed cylinder b61 installed in the middle of the bottom surface of the clamping connecting plate b2, and the two output ends of the double-headed cylinder b61 extend to the left and right ends respectively through the pencil board clamping connecting plate b62 and are fixedly connected to the pencil board clamping b63.

[0109] Among them, the driving component c includes a group of x-axis support plates c1 symmetrically installed on the upper ends of the front and rear ends of the first frame, an x-axis movable plate c3 that is slid left and right at both ends and is set on the two x-axis support plates c1, a number of y-axis movable plates c4 that are slidably connected to the left side of the x-axis movable plate c3, and a z-axis lifting rod c6 that is slidably connected to the left side of the y-axis movable plate c4 up and down, and the bottom end of the z-axis lifting rod c6 is fixedly connected to the upper surface of the clamp connecting plate b2.

[0110] Among them, the support plate c1 is provided with an x-guide rail c11 and an x-guide rack c12 along the length direction, and the bottoms of the front and rear ends of the x-moving plate c3 are fixedly connected with x-guide sliders c33 that cooperate with the x-guide rail c11. It also includes an x-drive motor c2 arranged on the front and rear ends of the x-moving plate c3, and the output end of the x-drive motor c2 extends downward and is fixedly connected with an x-drive gear c21, and the x-drive gear c21 is meshed with the x-guide rack c12.

[0111] Among them, the left side of the x-axis moving plate c3 is provided with a y-axis guide rail b31 and a y-axis guide rack c32 along the length direction, the right side of the y-axis moving plate c4 is provided with a y-axis slider c41 cooperating with the y-axis guide rail b31, and also includes a y-axis driving motor c5 arranged on the left side of the x-axis moving plate c3, the output end of the y-axis driving motor c5 passes through the x-axis moving plate c3 and is fixedly connected with a y-axis driving gear c51, and the y-axis driving gear c51 is meshed with the y-axis guide rack c32.

[0112] Among them, the z-direction lifting rod c6 is provided with a z-direction guide rail c61 and a z-direction guide rack c62 along the length direction on one side facing the x-direction moving plate c3, the left side of the y-direction moving plate c4 is provided with a z-direction slider c42 cooperating with the z-direction guide rail c61, and also includes a z-direction driving motor c7 arranged on the right side of the y-direction moving plate c4, the output end of the z-direction driving motor c7 passes through the x-direction moving plate c3 and is fixedly connected with a z-direction driving gear c71, and the z-direction driving gear c71 is meshed with the z-direction guide rack c62.

[0113] Among them, an x-direction positioning sensor c8 is arranged at the front end of the x-direction moving plate c3, a frame detection sensor c9 is arranged in the middle of the left end face of the x-direction moving plate c3, a y-direction positioning sensor c10 is arranged on the right side face of the y-direction moving plate c4, and a z-direction positioning sensor c11 is arranged on the left side face of the y-direction moving plate c4.

[0114] Wherein, a clamping jaw positioning sensor b4 is arranged on the clamping jaw connecting plate.

[0115] Wherein, protective covers b5 for protecting the frame clamping jaw assembly b3 are arranged on the left and right ends of the clamping jaw support plate b1.

[0116] The clamp frame circulation stacking device e comprises a stacking frame e1, which is divided into a pressure-maintaining stacking area e2 located on one side of the pressure-applying area d31 and a pressure-releasing stacking area e3 located on one side of the pressure-releasing area d32. A clamp frame conveyor belt e41 for conveying the clamp frame and a clamp frame conveying motor e4 for driving the clamp frame conveyor belt e41 are arranged at the bottom of the stacking frame e1.

[0117] A group of first lifting cylinders e5 for driving the clamping frame with the pencil board to be pressure-maintained to descend are symmetrically arranged on the stacking racks e1 on both sides of the pressure-maintaining stacking area e2, and a first lifting plate e51 is fixedly connected to the output end of the first lifting cylinder e5. Two groups of first supporting electric push rods e6 for supporting the clamping frame are symmetrically arranged on the stacking racks e1 on both sides of the pressure-maintaining stacking area e2;

[0118] A group of second lifting cylinders e7 for driving the clamping frame with the pencil board to be depressurized to rise are symmetrically arranged on the stacking racks e1 on both sides of the depressurization stacking area e3, and a second lifting plate e71 is fixedly connected to the output end of the second lifting cylinder e7. Two groups of second supporting electric push rods e8 for supporting the clamping frame are symmetrically arranged on the stacking racks e1 on both sides of the depressurization stacking area e3;

[0119] The two side walls of the clamp frame are provided with lifting support plates cooperating with the first lifting plate e51 and the second lifting plate e71.

[0120] Working principle of the present invention:

[0121] When the clamp frame is not in use and pressure is not maintained, the threaded ejector rod and ejector rod sleeve of the pressure-maintaining clamping assembly are located on the top inclined surface of the pressure-maintaining support ejector block;

[0122] When in use, the pencil board is fed through the feeding conveyor, and the corresponding driving motor of the driving assembly drives the corresponding driving gear to rotate. Since the driving gear is meshed with the corresponding guide rack, the x-direction moving plate, the y-direction moving plate and the z-direction lifting rod can be driven along the corresponding directions to realize the three-way movement of the clamping claw assembly. The clamping claw assembly is driven to move by the driving assembly, and the two clamping hydraulic cylinders of the frame clamping claw assembly drive the frame clamping claw to clamp the empty bundle clamp frame in the depressurization zone, and then the bundle clamp frame is placed on the pressurization zone of the workbench, and the frame clamping claw is released;

[0123] The clamp frame is placed on the pressurized area of ​​the workbench, and the frame is limited and fixed by the table clamping assembly. The driving assembly drives the clamping claw assembly to move to the pencil board feeding and conveying device, and the double-headed cylinder of the pencil board clamping claw assembly drives two pencil board clamps to grab the pencil board. Then the clamping claw assembly moves to the position of the clamp frame in the pressurized area, and the pencil board clamps are released and grabbed by the double-headed cylinder, and the pencil board is placed on the clamp frame, so that the pencil board fills the clamp frame;

[0124] Afterwards, the moving table driving motor under the pressurizing area drives the moving table under the pressurizing area to move back and forth on the lower base at the pressurizing area to the corresponding position to be pressurized, and then the pressurizing top plate is driven by the pressurizing hydraulic cylinder to push the pressure-keeping top plate to move in the direction of the clamp frame, and the pressure-keeping clamping connecting rod moves in the direction of the pencil board accordingly, driving the pressure-keeping clamping plate to move in the direction of the pencil board to clamp the pencil board. At this time, since the push rod sleeve is rotatably connected to the rotating support seat, the threaded push rod and the push rod sleeve slowly leave the top of the pressure-keeping supporting top block as the pressure-keeping clamping plate moves, and then slides down with the inclined surface, and stops when the threaded push rod slides down to the pressure-keeping limit block. The pressure-keeping limit block supports the bottom of the threaded push rod, and the pressure-keeping support top block supports one end of the threaded push rod, and the pressure-keeping clamping plate is kept stationary to continuously clamp and pressurize the pencil board. At this time, the pressurizing hydraulic cylinder can retract the pressurizing top plate to stop pressurizing;

[0125] Afterwards, release the table clamping assembly to release the limit fixation on the frame body, and drive the clamping claw assembly through the driving assembly to grab the pressure-maintaining clamp frame, and then place it on the pressure-maintaining stacking area of ​​the clamp frame circulation stacking device on the side of the pressurizing area, and extend the push rods through the two groups of first supporting electric push rods to support the four corners of the clamp frame. The pressurized clamp frames are stacked on top in sequence. After stacking more, the first lifting cylinder drives the first lifting plate to rise to support the lifting support plates on the two side walls of the lowest clamp frame, and first drives the stacked lifting plates to move down the distance of a clamp frame, and then supports the second clamp frame through the first supporting electric push rod. The first lifting cylinder drives the clamping frame to move down to the clamping frame conveyor belt, and then the clamping frame conveyor belt drives the clamping frame to move to the depressurization stacking area. The lifting support plate of the clamping frame is located on the second lifting plate, and the clamping frame is driven by the second lifting cylinder to move up to the second supporting electric push rod, and supported by the first supporting electric push rod. The second lifting cylinder descends and repeats the above operation. During the stacking process, the pencil board can be pressure-maintained without the need for the pressurized hydraulic cylinder to continuously apply pressure to the clamping frame, which saves space for the equipment, frees up the clamping frame and the pressurized hydraulic cylinder, and can move the clamping frame when pressure is maintained, facilitating subsequent operations.

[0126] When decompression is required after the pressure holding is completed, the driving assembly drives the clamping claw assembly to grab the topmost clamp frame in the decompression stacking area, place the clamp frame in the decompression area, and then clamp and fix the frame through the table clamping assembly. Then, the moving table under the decompression area is moved to the corresponding position where decompression is required. The buffer cylinder first drives the buffer top plate to support the pressure holding top plate. At this time, the decompression cylinder drives the corresponding decompression ejector rod through the table decompression ejector rod through-hole and the frame decompression ejector rod through-hole in turn to eject the threaded ejector rod out of the top of the pressure holding support top block. Then, the buffer cylinder drives the buffer top plate to slowly retreat, and the buffer top During the retraction of the plate, the decompression cylinder drives the decompression ejector rod to retract. At this time, the pressure-holding clamping plate loses its support. Due to the effect of the return spring on the pressure-holding clamping connecting rod between the pressure-holding top plate and the outer wall of the frame, the pressure-holding clamping plate gradually moves away from the pencil plate to achieve clamping and decompression. The buffer cylinder and the buffer ejector plate can play a buffering role during decompression, and support the pressure-holding top plate during decompression. A certain gap is generated between the threaded ejector rod and the supporting ejector block, which facilitates the decompression ejector rod to eject the threaded ejector rod to ensure the decompression effect and efficiency. By avoiding the sudden rebound of the return spring, the return spring is better protected and the service life of the return spring is increased.

[0127] Then, the pencil board after pressure maintenance is grabbed by the clamping claw assembly, and the pencil board is placed on the discharge conveying device, and outputted through the discharge conveying device, and then the clamping and fixing of the frame is released by the table clamping assembly, and the clamping frame is grabbed by the clamping claw assembly, and the clamping frame is placed on the pressurizing area. The above operations are repeated to form an automatic clamping and pressure maintenance production line for pencil boards, which can reduce the use of clamping frames. The circular assembly line improves production efficiency, saves factory space, has a high degree of automation, and is more convenient and quick to operate. If there are too many clamping frames during the period, the clamping frames that are moving downward can be transferred to the warehouse by the AGV trolley to be stacked and pressure maintained in sequence, and then the clamping frames are transferred to the decompression stacking area by the AGV trolley, rise to the top by the second lifting cylinder, and are grabbed by the clamping claw assembly to the decompression area for decompression, which can also form a cycle.

[0128] The above shows and describes the basic principles and main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents. Anything not described in detail in the present invention is a well-known technology of those skilled in the art.

Claims

1. Automatic pencil board clamp production line, characterized by: The utility model comprises a first frame and a plurality of clamping frames for placing pencil boards to maintain pressure on the pencil boards, a clamping and unclamping device for pressurizing and depressurizing the clamping frame is arranged at the left bottom of the first frame, a feeding conveying device is arranged at the inner wall of the rear end of the first frame, a discharging conveying device is arranged at the inner wall of the front end of the first frame, a clamping frame circulation stacking device is arranged on the right side of the clamping and unclamping device, and also comprises a plurality of clamping claw assemblies arranged at the upper part of the first frame for grabbing pencil boards and clamping claw frames, and a driving assembly arranged on the first frame for driving the clamping claw assembly to move in three directions.

2. The automatic pencil board clamping line according to claim 1 is characterized by: The invention comprises a frame for placing a pencil board; at least one group of pressure-maintaining clamping components arranged at one end or two opposite ends of the frame, the pressure-maintaining clamping component comprising a pressure-maintaining top plate arranged outside the frame, one end of a pressure-maintaining clamping connecting rod being fixedly connected to the side of the pressure-maintaining top plate facing the frame, the other end of the pressure-maintaining clamping connecting rod slidingly passing through the frame and fixedly connected to a pressure-maintaining clamping plate, the pressure-maintaining clamping plate being rotatably connected to a pressure-maintaining push rod assembly on the side facing the pressure-maintaining top plate, a return spring being sleeved on the pressure-maintaining clamping connecting rod between the pressure-maintaining top plate and the outer wall of the frame; a pressure-maintaining support top block for correspondingly cooperating with the pressure-maintaining clamping assembly being arranged at the inner wall of the frame corresponding to the pressure-maintaining push rod assembly, the top of the pressure-maintaining support top block moving toward the pressure-maintaining clamping plate An inclined surface is arranged in the direction, and a pressure-maintaining limit block is arranged in the middle of one side of the pressure-maintaining support top block facing the pressure-maintaining clamping plate; a frame pressure-releasing push rod through hole is opened at the bottom of the frame body corresponding to the pressure-maintaining push rod assembly; a frame bottom plate is installed at the bottom of the frame body, and a plurality of pencil board support bottom rods are arranged above the frame bottom plate along the length direction of the frame body, and the frame pressure-releasing push rod through hole is opened at the frame bottom plate corresponding to the pressure-maintaining push rod assembly; a partition splint is arranged between the middle parts of the front and rear ends of the frame body, and pressure-maintaining clamping assemblies are symmetrically arranged on the frames on both sides of the partition splint, the partition splint cooperates with the pressure-maintaining clamping assembly of the frame body on one side to form a first pressure-maintaining area, and the partition splint cooperates with the pressure-maintaining clamping assembly of the frame body on the other side to form a second pressure-maintaining area.

3. The pencil board clamp automatic line according to claim 2 is characterized by: The cam is an angular channel formed between a central portion of the second cam and a central portion of the second cam, and the central portion is a channel formed between a tooth and a handle, and the tooth is connected along the tooth to form a circle, the tooth being a bottom surface and the bottom surface of the cam.

4. The automatic pencil board clamping line according to claim 3 is characterized by: The invention relates to a working table for placing a clamp frame, wherein the working table is divided into a pressurizing area and a depressurizing area, wherein a pressurizing component for pressurizing the clamp frame is slidably arranged around the pressurizing area, and a depressurizing component for depressurizing the clamp frame is slidably arranged below the depressurizing area, and a through hole for a depressurizing push rod cooperating with the depressurizing component is provided on the working table of the depressurizing area; the working table of the depressurizing area also includes a lower base and an upper base arranged above the lower base, wherein the working table is arranged on the upper surface of the upper base, and a movable table is slidably arranged under the upper bases of the pressurizing area and the depressurizing area, and the left and right ends of the movable table extend out of the working table and extend upward to The pressurizing assembly comprises a pressurizing hydraulic oil cylinder, which is mounted on the cylinder mounting seat of the mobile platform in the pressurizing zone, and the output end of the pressurizing hydraulic oil cylinder is fixedly connected with a pressurizing top plate toward the workbench; the depressurization assembly comprises a depressurization cylinder and a buffer cylinder, which are mounted on the cylinder mounting seat of the mobile platform in the depressurization zone, and the output end of the buffer cylinder is fixedly connected with a buffer top plate toward the workbench, and the depressurization cylinder is mounted on the bottom surface of the mobile platform in the depressurization zone, and the output end of the depressurization cylinder extends upward from the mobile platform and is fixedly connected with a depressurization push rod.

5. The automatic pencil board clamping line according to claim 4 is characterized in that: A group of mobile platform guide rails and mobile platform guide racks are symmetrically arranged on the upper surfaces of the left and right ends of the lower base, and a mobile platform slider matching with the mobile platform guide rails is arranged at the bottom surface of the mobile platform corresponding to the mobile platform guide rails, and the mobile platform is slidably arranged on the mobile platform guide rails through the mobile platform sliders, and a mobile platform driving motor is arranged on the bottom surface of the mobile platform; the output end of the mobile platform driving motor is transmission-connected to the mobile platform driving transmission shaft, and the two ends of the mobile platform driving transmission shaft are fixedly connected to the mobile platform driving gears, and the mobile platform driving gears at the two ends are meshed with the mobile platform guide racks on the two ends of the lower base.

6. The automatic pencil board clamping line according to claim 5 is characterized by: The workbench is provided with a plurality of table frame positioning sensors; the pressurization area and the depressurization area are both provided with a plurality of frame limit blocks and table clamping components for fixing the clamp frame during pressurization / depressurization.

7. The automatic pencil board clamping line according to claim 6 is characterized by: The clamping jaw assembly comprises a group of clamping jaw support plates symmetrically arranged front and back, a clamping jaw connecting plate arranged between the middle parts of the upper ends of a group of clamping jaw support plates, a pencil board clamping jaw assembly for clamping a pencil board is arranged on the bottom surface of the clamping jaw connecting plate, and a group of frame clamping jaw assemblies are arranged on the left and right ends of the connecting plate; the frame clamping jaw assembly comprises a clamping hydraulic cylinder, the tail of the clamping hydraulic cylinder is hinged on the connecting plate through a hydraulic cylinder hinge seat, the output end of the clamping hydraulic cylinder is hinged to one end of a connecting rod through a connecting rod hinge joint, and the other end of the connecting rod is fixedly sleeved on the frame clamping jaw rotating shaft, the frame clamping jaw rotating shaft is rotatably connected to the ends of the two clamping jaw support plates away from the clamping jaw connecting plate, and the two ends of the frame clamping jaw rotating shaft respectively extend two clamping jaw support plates fixedly connected to the frame clamping jaw; the pencil board clamping jaw assembly comprises a double-headed cylinder installed in the middle part of the bottom surface of the clamping jaw connecting plate, and the two output ends of the double-headed cylinder extend to the left and right ends respectively and are fixedly connected to the pencil board clamping jaws through the pencil board clamping jaw connecting plate.

8. The automatic pencil board clamping line according to claim 7 is characterized in that: The drive assembly includes a group of x-axis support plates symmetrically installed on the upper ends of the front and rear ends of the first frame, x-axis movable plates slidably arranged on the two x-axis support plates at both ends, a plurality of y-axis movable plates slidably connected to the left and right sides of the x-axis movable plates, and a z-axis lifting rod slidably connected to the left and right sides of the y-axis movable plates, and the bottom end of the z-axis lifting rod is fixedly connected to the upper surface of the clamping claw connecting plate; an x-axis guide rail and an x-axis guide rack are arranged on the support plate along the length direction, and the bottoms of the front and rear ends of the x-axis movable plate are fixedly connected to x-axis sliding blocks cooperating with the x-axis guide rails, and also include an x-axis driving motor arranged on the front and rear ends of the x-axis movable plate, and the output end of the x-axis driving motor extends downward and is fixedly connected to an x-axis driving gear, and the x-axis driving gear is meshed with the x-axis guide rack ; The left side of the x-axis movable plate is provided with a y-guide rail and a y-guide rack along the length direction, and the right side of the y-axis movable plate is provided with a y-guide slider cooperating with the y-guide rail, and also includes a y-axis driving motor arranged on the left side of the x-axis movable plate, the output end of the y-axis driving motor passes through the x-axis movable plate and is fixedly connected to the y-axis driving gear, and the y-axis driving gear is meshed with the y-axis guide rack; the z-axis lifting rod is provided with a z-guide rail and a z-guide rack along the length direction on one side facing the x-axis movable plate, and the left side of the y-axis movable plate is provided with a z-guide slider cooperating with the z-guide rail, and also includes a z-axis driving motor arranged on the right side of the y-axis movable plate 9. The pencil board clamp automatic line according to claim 8, characterized in that: An x-direction positioning sensor is arranged at the front end of the x-direction moving plate, a frame detection sensor is arranged in the middle of the left end surface of the x-direction moving plate, a y-direction positioning sensor is arranged on the right side of the y-direction moving plate, and a z-direction positioning sensor is arranged on the left side of the y-direction moving plate; a clamp positioning sensor is arranged on the clamp connecting plate.

10. The automatic pencil board clamping line according to claim 9, characterized in that: The bundle clamp frame circulation stacking device comprises a stacking frame, the stacking frame is divided into a pressure-maintaining stacking area located on one side of the pressurizing area and a decompression stacking area located on one side of the decompression area, a bundle clamp frame conveying belt for conveying the bundle clamp frame and a bundle clamp frame conveying motor for driving the bundle clamp frame conveying belt to run are arranged at the bottom of the stacking frame; a group of first lifting cylinders for driving the bundle clamp frame with the pencil board to be pressure-maintained to descend are symmetrically arranged on the stacking frames on both sides of the pressure-maintaining stacking area, the output end of the first lifting cylinder is fixedly connected with the first lifting plate, and two groups of first supporting electric push rods for supporting the bundle clamp frame are symmetrically arranged on the stacking frames on both sides of the pressure-maintaining stacking area; a group of second lifting cylinders for driving the bundle clamp frame with the pencil board to be decompressed to rise are symmetrically arranged on the stacking frames on both sides of the decompression stacking area, the output end of the second lifting cylinder is fixedly connected with the second lifting plate, and two groups of second supporting electric push rods for supporting the bundle clamp frame are symmetrically arranged on the stacking frames on both sides of the decompression stacking area; lifting support plates cooperating with the first lifting plate and the second lifting plate are arranged on the two side walls of the bundle clamp frame.

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