Automatic leaf cutter

Abstract

The utility model discloses an automatic leaf cutting machine which comprises a machine frame and at least one automatic cutting module, and an installation table is arranged on the rear side of the top of the machine frame. The PVC strip feeding mechanism is installed on the rear portion of the installation table and used for grasping and feeding a plurality of PVC strips forwards, the cutting assembly is installed on the installation table, located right in front of the PVC strip feeding mechanism and used for cutting the PVC strips, the movable mechanical arm is installed on the rack and located above the front of the cutting assembly, and the grasping clamping jaw is connected with the output end of the movable mechanical arm and used for clamping the PVC strips. The grabbing clamping jaw is used for grabbing the PVC strips extending to the front portion of the cutting assembly and moving front and back for smoothing, and the control system is installed on the rack and used for controlling the PVC strip feeding mechanism, the cutting assembly, the movable mechanical arm and the grabbing clamping jaw to act. According to the PVC strip cutting device, a plurality of PVC strips can be automatically cut, the cutting efficiency and the cutting quality are improved, and potential safety hazards of personnel are avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to mechanical automation field especially, and relates to an automatic leaf cutting machine. BACKGROUND

[0002] In the process of making Christmas tree branches and leaves, it is necessary to cut the PVC strip integrally connected with Christmas tree branches and leaves into segments according to the specified length. At present, several PVC strips are usually grabbed into a bundle by hand and then placed in a cutting knife for cutting. On the one hand, the cutting efficiency is low, and on the other hand, the length accuracy of cutting cannot be guaranteed. At the same time, manual cutting operation exists safety hazards for workers. UTILITY MODEL CONTENTS

[0003] The utility model aims at providing an automatic leaf cutting machine to solve the above problems.

[0004] The technical scheme of the utility model is implemented as follows:

[0005] An automatic leaf cutting machine is designed, which comprises a rack and at least one automatic cutting module. The automatic cutting module comprises a PVC strip feeding mechanism, a cutting assembly, a moving manipulator, a grabbing and supporting claw, and a control system. The top rear side of the rack is provided with a mounting table. The PVC strip feeding mechanism is installed at the rear of the mounting table and is used to grab several PVC strips and feed them forward. The cutting assembly is installed on the mounting table and is located in front of the PVC strip feeding mechanism and is used to cut the PVC strips. The moving manipulator is installed on the rack and is located above the cutting assembly. The grabbing and supporting claw is connected to the output end of the moving manipulator. The grabbing and supporting claw is used to grab several PVC strips that extend in front of the cutting assembly. The control system is installed on the rack and is used to control the actions of the PVC strip feeding mechanism, the cutting assembly, the moving manipulator, and the grabbing and supporting claw.

[0006] Preferably, the PVC strip feeding mechanism comprises a pressing female block, a male block, a male block up-down driving module electrically connected to the control system, and a female block front-rear driving module electrically connected to the control system. The pressing female block is located above the mounting table. The pressing female block is provided with a female hole that penetrates through the female block from front to rear. The pressing female block is also provided with a male block moving insertion hole that penetrates through the female block from top to bottom. The male block moving insertion hole penetrates the inner wall of the female hole. The male block is provided with a male hole that penetrates through the male block from front to rear. The male block up-down driving module is installed on the pressing female block, and the output end of the male block up-down driving module is fixedly connected to the top of the male block. The male block up-down driving module drives the male block to move up and down. The female block front-rear driving module is installed on the rack and is used to drive the pressing female block to move forward and backward.

[0007] Preferably, the installation table is provided with a front-to-back long and narrow guide hole, the female block front-to-back drive module comprises a drive motor electrically connected with the control system, a driving wheel, a driven wheel, a transmission belt, a belt clamping block, a front-to-back track and a front-to-back sliding block, the drive motor is fixedly installed on the rack below the installation table, the output shaft of the drive motor extends upward and is fixedly connected with the driving wheel, the driving wheel is located below the installation table, the driven wheel is rotatably connected to the rack below the installation table, the driven wheel is located in front of the driving wheel, and the driving wheel and the driven wheel are located on the left side or the right side of the guide hole, the transmission belt is wound outside the driving wheel and the driven wheel, the lower end of the belt clamping block is clamped on the transmission belt, the upper end of the belt clamping block penetrates the guide hole upward and is fixedly connected with the compression female block, the front-to-back track is fixedly installed on the bottom of the installation table on the other side of the guide hole opposite to the transmission belt, the front-to-back sliding block is slidingly connected to the front-to-back track, and the front-to-back sliding block is fixedly connected with the lower end of the belt clamping block.

[0008] Preferably, the rear wall of the compression female block is outwardly and rearwardly protruded to form a swing guide ring.

[0009] Preferably, the compression female block comprises a front connecting block, a rear connecting block and two limiting side blocks, the front connecting block and the rear connecting block are respectively provided with a front female hole and a rear female hole, the two limiting side blocks are respectively fixedly clamped between the front connecting block and the rear connecting block and located on the left and right outer sides of the front female hole and the rear female hole, the front female hole and the rear female hole are connected with each other to form the female hole, and the front connecting block, the rear connecting block and the two limiting side blocks form the male block moving insertion hole.

[0010] Preferably, the grab clamps comprise a clamp cylinder electrically connected to the control system, a cylinder base, a cylinder connecting piece, a right front sub-claw, a right rear sub-claw, a left front sub-claw, a left rear sub-claw, a left connecting rod, a middle connecting shaft rod, a right connecting shaft rod, a right front connecting rod, a right rear connecting rod, a left connecting shaft rod, and a left connecting vertical rod. The cylinder base is provided with a cylinder mounting hole penetrating through itself from top to bottom. The clamp cylinder is fixedly installed on the cylinder base, and the output shaft of the clamp cylinder penetrates through the cylinder mounting hole and is connected to the middle connecting shaft rod. One end of the cylinder connecting piece is fixedly connected to the clamp cylinder, and the other end of the cylinder connecting piece is fixedly connected to the output end of the mobile manipulator. The left end of the right front sub-claw and the right end of the left front sub-claw are both rotationally connected to the front end of the middle connecting shaft rod. The left end of the right rear sub-claw and the right end of the left rear sub-claw are both rotationally connected to the rear end of the middle connecting shaft rod. The upper end of the right front connecting rod is fixed to the right front part of the cylinder base, and the lower end of the right front connecting rod is provided with a right front fixed insertion hole. The upper end of the right rear connecting rod is fixed to the right rear part of the cylinder base, and the lower end of the right rear connecting rod is provided with a right rear fixed insertion hole. The front end of the right connecting shaft rod is fixedly inserted through the right front fixed insertion hole and rotationally connected to the right front sub-claw. The rear end of the right connecting shaft rod is fixedly inserted through the right rear fixed insertion hole and rotationally connected to the right rear sub-claw. The upper end of the left connecting vertical rod is fixed to the left part of the cylinder base, the lower end of the left connecting vertical rod is provided with a left fixed insertion hole, and the left connecting shaft rod is fixedly inserted through the left fixed insertion hole. The front and rear ends of the left connecting shaft rod are respectively rotationally connected to the left front sub-claw and the left rear sub-claw. The right front sub-claw and the right rear sub-claw are downwardly curved from left to right, and the left front sub-claw and the left rear sub-claw are downwardly curved from right to left.

[0011] Preferably, the output shaft of the clamp cylinder is provided with a circular movable hole at the lower end, and the middle part of the middle connecting shaft rod is provided with a spherical movable head. The movable head is inserted into the movable hole, so that the middle connecting shaft rod is movably connected to the lower end of the output shaft of the clamp cylinder.

[0012] Preferably, the cutting assembly comprises a fixed blade block, a movable blade block, a blade block fixing seat and a blade block lifting module electrically connected with the control system, the blade block fixing seat comprises a horizontal fixing block and a vertical mounting block, the horizontal fixing block is fixedly installed on the front side of the top of the installation table, the vertical mounting block is vertically fixed on the top of the horizontal fixing block, a mounting block through hole is formed in the vertical mounting block and extends through the vertical mounting block from front to back, the fixed blade block is fixedly installed on the front wall of the vertical mounting block, and a fixed blade block through hole is formed in the front wall of the fixed blade block and extends through the fixed blade block from front to back, the installation table is provided with a blade block lifting gap in front of the fixed blade block, the blade block lifting module is fixedly installed on the rack below the installation table, the output end of the blade block lifting module extends upwards through the blade block lifting gap and is fixedly connected with the movable blade block, the rear upper end of the movable blade block forms a cutting edge, the cutting edge is in abutting connection with the front wall of the fixed blade block, and the mounting block through hole is opposite to the female hole.

[0013] Preferably, the automatic cutting module further comprises a discharging positioning cylinder assembly, the discharging positioning cylinder assembly comprises a positioning mounting seat, a cylindrical positioning cylinder and a positioning cylinder front-rear driving module, the positioning mounting seat is connected with the output end of the mobile manipulator and is located in front of the clamping jaw, the positioning cylinder front-rear driving module is fixedly installed on the positioning mounting seat, the output end of the positioning cylinder front-rear driving module extends rearward and is fixedly connected with the front end of the positioning cylinder, the rear end of the positioning cylinder is opposite to the fixed blade block through hole, the positioning cylinder can extend rearward to the front wall of the fixed blade block, and the rear end of the positioning cylinder can be covered outside the fixed blade block through hole.

[0014] Preferably, the positioning mounting seat comprises a vertical mounting block and a horizontal connecting block, one end of the horizontal connecting block is connected with the output end of the mobile manipulator, the other end of the horizontal connecting block is connected with the upper end of the vertical mounting block in a vertical mode, the vertical mounting block extends in a left-right direction and is vertically placed, a driving mounting hole is formed in the vertical mounting block, the positioning cylinder front-rear driving module is fixedly installed on the front wall of the vertical mounting block, and the output end of the positioning cylinder front-rear driving module extends rearward through the driving mounting hole and is fixedly connected with the front end of the positioning cylinder.

[0015] Compared with the prior art, the automatic leaf cutting machine can automatically complete the cutting of a plurality of PVC strips, improve the cutting efficiency and cutting quality, and avoid safety hazards of personnel. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a structural view of the first embodiment of the automatic leaf cutting machine.

[0017] Figure 2 It is a structural view of the first embodiment of the automatic leaf cutting machine. Figure 1Enlarged view of the middle A part;

[0018] Figure 3 First local structure diagram of the first embodiment of the automatic leaf cutting machine;

[0019] Figure 4 Second local structure diagram of the first embodiment of the automatic leaf cutting machine;

[0020] Figure 5 Third local structure diagram of the first embodiment of the automatic leaf cutting machine;

[0021] Figure 6 Fourth local structure diagram of the first embodiment of the automatic leaf cutting machine;

[0022] Figure 7 Fifth local structure diagram of the first embodiment of the automatic leaf cutting machine;

[0023] Figure 8 Sixth local structure diagram of the first embodiment of the automatic leaf cutting machine;

[0024] Figure 9 Local structure diagram of the second embodiment of the automatic leaf cutting machine. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of the present application.

[0026] Please refer to Figures 1 to 8 The technical scheme provided by the present application is: the automatic leaf cutting machine comprises a rack 10, an automatic cutting module 20 and a discharge conveying belt mechanism 30. The top rear side of the rack 10 is provided with a mounting table 11, and the mounting table 11 is provided with a front-to-back long and narrow guide hole 111.

[0027] The automatic cutting module 20 comprises a PVC strip feeding mechanism 21, a cutting assembly 22, a moving manipulator 23, a holding clamp 24 and a control system (not shown in the figure). The PVC strip feeding mechanism 21 is installed at the rear of the mounting table 11 and is used to hold and feed several PVC strips forward. The cutting assembly 22 is installed on the mounting table 11 and is located directly in front of the PVC strip feeding mechanism 21 and is used to cut PVC strips. The left and right material conveying belt mechanisms 30 are arranged below the cutting assembly 22. The moving manipulator 23 is installed on the rack 10 and is located above the cutting assembly 22. The holding clamp 24 is connected to the output end of the moving manipulator 23 and is used to hold several PVC strips that are supported and extended in front of the cutting assembly. The control system is installed on the rack 10 and is used to control the actions of the PVC strip feeding mechanism 21, the cutting assembly 22, the moving manipulator 23 and the holding clamp 24. In this embodiment, the front end surface of the rack 10 is provided with an electrical box 40, and the control system is installed in the electrical box 40.

[0028] Specifically, the PVC strip feeding mechanism 21 comprises a pressing female block 211, a male block 212, a male block up-down driving module 213 electrically connected to the control system and a female block front-back driving module 214 electrically connected to the control system. The pressing female block 211 is located above the mounting table 11. The pressing female block 211 is provided with a female hole 2111 that penetrates through the front and back of the pressing female block 211. The pressing female block 211 is also provided with a male block moving hole 2112 that penetrates through the top and bottom of the pressing female block 211. The male block moving hole 2112 penetrates the inner wall of the female hole 2111. The male block 212 is provided with a male hole 2121 that penetrates through the front and back of the male block 212. The male block up-down driving module 213 is installed on the pressing female block 211 and the output end of the male block up-down driving module 213 is fixedly connected to the top of the male block 212. The male block up-down driving module 213 drives the male block 212 to move up and down. The female block front-back driving module 214 is installed on the rack 10 and is used to drive the pressing female block 211 to move forward and backward. In this embodiment, the male block up-down driving module is a pneumatic cylinder. The rear wall of the pressing female block 211 is outwardly protruded from the edge of the female hole 2111 to form a swing rest guide ring 2113. In this embodiment, the female hole 2111 is circular, and correspondingly, the male hole 2121 is also circular.

[0029] More specifically, the front and rear drive module 214 of the mother block includes a drive motor 2141 electrically connected to the control system, a drive wheel (not shown), a driven wheel 2143, a transmission belt 2144, a belt clamp 2145, front and rear rails 2146, and front and rear sliders 2147. The drive motor 2141 is fixedly mounted on the frame 10 below the mounting platform 11. The output shaft of the drive motor 2141 extends upward and is fixedly connected to the drive wheel 2142, which is located below the mounting platform 11. The driven wheel 2143 is rotatably connected to the frame 10 below the mounting platform 11, and is located directly in front of the drive wheel 2142. Both the drive wheel 2142 and the driven wheel 2143 are located to the left or right of the guide hole 111. The transmission belt 2144 is wound around the drive wheel 2142 and the driven wheel 2143. The lower end of the belt clamp 2145 is clamped onto the transmission belt 2144, and the upper end of the belt clamp 2145 passes upward through the guide hole 111 and is fixedly connected to the clamping block 211. The front and rear rails 2146 are fixedly installed on the bottom of the mounting platform 11 on the opposite side of the guide hole 111 and the transmission belt 2144. The front and rear sliders 2147 are slidably engaged with the front and rear rails 2146 and are fixedly connected to the lower end of the belt clamp 2145.

[0030] More specifically, the clamping female block 211 includes a front connecting block 2114, a rear connecting block 2115, and two limiting side blocks 2116. The front connecting block 2114 and the rear connecting block 2115 are respectively provided with a front female hole 21141 and a rear female hole 21151. The two limiting side blocks 2116 are detachably fixed and clamped between the front connecting block 2114 and the rear connecting block 2115 and are located on the left and right outer sides of the front female hole 21141 and the rear female hole 21151. The front female hole 21141 and the rear female hole 21151 are interconnected to form the female hole 2111. The male block moving insertion hole 2112 is formed between the front connecting block 2114, the rear connecting block 2115, and the two limiting side blocks 2116. The swing guide ring 2113 is disposed on the rear wall of the rear connecting block 2115. In this embodiment, the front connecting block 2114, the rear connecting block 2115 and the two limiting side blocks 2116 are respectively provided with front fixing through holes (not shown), limiting block fixing through holes (not shown) and rear fixing through holes (not shown), which are directly opposite each other. The fixing screw 50 passes through the front fixing through hole, the limiting block fixing through hole and the rear fixing through hole in sequence and is screwed and fixed to the fixing nut 60.

[0031] Specifically, the gripper 24 includes a gripper cylinder 241, a cylinder seat 242, a cylinder connector 243, a right front gripper 244, a right rear gripper 245, a left front gripper 246, a left rear gripper 247, a left connecting shaft 248, a middle connecting shaft 249, a right connecting shaft 250, a right front connecting rod 251, a right rear connecting rod 252, and a left connecting vertical rod 253, all of which are electrically connected to the control system. The cylinder seat 242 has a cylinder mounting hole (not shown) that extends vertically through it. The gripper cylinder 241 is fixedly mounted on the cylinder seat 242, and the output shaft 2411 of the gripper cylinder 241 passes downward through the cylinder mounting hole and connects to the intermediate connecting shaft 249. One end of the cylinder connector 243 is fixedly connected to the gripper cylinder 241, and the other end of the cylinder connector 243 is fixedly connected to the output end of the moving manipulator 23. The left end of the right front gripper 244 and the right end of the left front gripper 246 are rotatably connected to the front end of the intermediate connecting shaft 249. The left end of the right rear gripper 245 and the right end of the left rear gripper 247 are rotatably connected to the rear end of the intermediate connecting shaft 249. The upper end of the right front connecting rod 251 is fixed to the right front part of the cylinder seat 242. The lower end of 51 is provided with a right front fixed insertion hole 2511. The upper end of the right rear connecting rod 252 is fixed to the right rear part of the cylinder seat 242. The lower end of the right rear connecting rod 252 is provided with a right rear fixed insertion hole (not shown in the figure). The front end of the right connecting shaft 250 is fixedly inserted through the right front fixed insertion hole 2511 and rotatably connected to the right front claw 244. The rear end of the right connecting shaft 250 is fixedly inserted through the right rear fixed insertion hole and rotatably connected to the right rear claw 245. The upper end of the left connecting vertical rod 254 is fixed to the left part of the cylinder seat 242. The lower end of the left connecting vertical rod 253 is provided with a left fixed insertion hole 2531. The left connecting shaft 248 is fixedly inserted through the left fixed insertion hole 2531. The front and rear ends of the left connecting shaft 248 are rotatably connected to the middle part of the left front claw 246 and the middle part of the left rear claw 247, respectively. The right front claw 244 and the right rear claw 245 both curve downwards in an arc from left to right, and the left front claw 246 and the left rear claw 247 both curve downwards in an arc from right to left. In this embodiment, the right front claw 244 is located behind the left front claw 246, and the right rear claw 245 is located in front of the left rear claw 247.

[0032] Preferably, the lower end of the output shaft 2411 of the gripper cylinder 241 has a circular movable hole 24111, and the middle part of the intermediate connecting shaft 249 has a spherical movable head 2491. The movable head 2491 is inserted into the movable hole 24111, thereby allowing the intermediate connecting shaft 249 to be movably connected to the lower end of the output shaft 2411 of the gripper cylinder 241. This allows the intermediate connecting shaft 249 to swing flexibly relative to the output shaft 2411 of the gripper cylinder 241, making it more flexible to use.

[0033] Preferably, the cutting assembly 22 includes a fixed blade block 221, a movable blade block 222, a blade block fixing seat 223, and a blade block lifting module 224 electrically connected to the control system. The blade block fixing seat 223 includes a horizontal fixing block 2231 and a vertical mounting block 2232. The horizontal fixing block 2231 is fixedly installed on the front side of the top of the mounting platform 11. The vertical mounting block 2232 is vertically fixed to the top of the horizontal fixing block 2231. The vertical mounting block 2232 has a through hole 22321 extending through itself from front to back. The fixed blade block 221 is fixedly installed on the front wall of the vertical mounting block 2232, and the fixed blade block 221 is positioned directly opposite the through hole 22321. The mounting platform 11 has a through hole 2211 for a fixed blade block that extends through the entire platform. A blade lifting notch 112 is provided in front of the fixed blade block 221. The blade lifting module 224 is fixedly mounted on the frame 10 below the mounting platform 11. The output end of the blade lifting module 224 passes upward through the blade lifting notch 112 and is fixedly connected to the movable blade block 222. The upper rear end of the movable blade block 222 forms a cutting edge 2221, which presses against the front wall of the fixed blade block 221. The through hole 22321 of the mounting block is directly opposite the female hole 2111. In this embodiment, the blade lifting module 224 is an electric cylinder.

[0034] When the automatic leaf cutter is working, several PVC strips are inserted into the swing guide ring 2113, passing through the female hole 2111 and the male hole 2121. Driven by the male block up-and-down drive module 213, the male block 212 moves downwards, pressing down the upper edge of the male hole 2121 to clamp the PVC strips. Then, the female block front-and-back drive module 214 is activated, moving the clamping female block 211 forward. This allows the PVC strips to continue passing through the mounting block through hole 22321, the fixed blade through hole 2211, and extending to the front of the movable blade 222 and into the gripping space of the gripper 24. At this time, the gripper cylinder 241 is activated, lifting the output shaft 2411 of the gripper cylinder 241. This causes the right front claw 244, right rear claw 245, left front claw 246, and left rear claw 247 to clamp and hold several PVC strips. Then, the blade lifting module 224 is activated, causing the movable blade 222 to move upwards to cut the PVC strips. Afterwards, the moving robotic arm 23 moves the gripper 24 forward to directly above the discharge conveyor 30. Then, the output shaft 2411 of the gripper cylinder 241 moves downwards, causing the right front claw 244, right rear claw 245, left front claw 246, and left rear claw 247 to open, placing the cut PVC strips onto the discharge conveyor 30, which then transports them to the designated position. All of the above actions can be automatically controlled by the control system.

[0035] refer to Figure 9 Unlike the first embodiment, this automatic cutting module 20 also includes a discharge positioning cylinder assembly 26. The discharge positioning cylinder assembly 26 includes a positioning mounting base 261, a cylindrical positioning cylinder 262, and a positioning cylinder front and rear drive module 263. The positioning mounting base 261 is connected to the output end of the mobile robotic arm 23 and is located in front of the gripper 24. The positioning cylinder front and rear drive module 263 is fixedly mounted on the positioning mounting base 261. The output end of the positioning cylinder front and rear drive module 263 extends rearward and is fixedly connected to the front end of the positioning cylinder 262. The rear end of the positioning cylinder 262 faces the fixed blade through hole 2211. The inner diameter of the positioning cylinder 262 is greater than or equal to the diameter of the fixed blade through hole 2211. The positioning cylinder 262 can extend rearward to the front wall of the fixed blade 221, and the rear end of the positioning cylinder 262 can cover the fixed blade through hole 2211.

[0036] Specifically, the positioning mounting base 261 includes a vertical mounting block 2611 and a horizontal connecting block 2612. One end of the horizontal connecting block 2612 is connected to the output end of the mobile robot 23, and the other end of the horizontal connecting block 2612 is perpendicularly connected to the upper end of the vertical mounting block 2611. The vertical mounting block 2611 is oriented left and right and placed vertically. A drive mounting hole 26111 is provided on the vertical mounting block 2611. The positioning cylinder front and rear drive module 263 is fixedly installed on the front wall of the vertical mounting block 2611, and the output end of the positioning cylinder front and rear drive module 263 passes through the drive mounting hole 26111 and is fixedly connected to the front end of the positioning cylinder 262. The central axis of the positioning cylinder 262 and the central axis of the fixed blade through hole 2211 are on the same straight line. The positioning cylinder front and rear drive module 263 is an electric cylinder. The rear end of the positioning cylinder 262 is provided with a guide slope 2621 that is inclined from the rear towards the central axis of the positioning cylinder 262.

[0037] In this embodiment, when the automatic leaf cutter is working, the gripper 24 and the discharge positioning cylinder assembly 26 move synchronously towards the fixed blade block 221 under the drive of the moving manipulator 23. After the gripper 24 approaches the fixed blade block 221, it stops moving. The positioning cylinder front and rear drive module 263 then drives the positioning cylinder 262 to continue moving backward, passing through the gripper 24 and abutting against the front wall of the fixed blade block 221. At this time, the rear end of the positioning cylinder 262 covers the through hole 2211 of the fixed blade block. Then, several PVC strips are guided from the rest. After the ring 2113 extends into and passes through the female hole 2111 and the male hole 2121, the male block 212 moves downward under the drive of the male block up and down drive module 213. The upper edge of the male hole 2121 presses down, thereby clamping several PVC strips. Then, the female block front and rear drive module 214 is activated, driving the clamping female block 211 forward, so that the PVC strips continue to pass through the mounting block through hole 22321 and the fixing blade through hole 2211 and extend into the positioning cylinder 262. The female block front and rear drive module 214 and the positioning cylinder front and rear drive module 263 respectively drive the clamping female block 212. Block 211 and positioning cylinder 262 move forward synchronously. After positioning cylinder 262 moves to the front of gripper 24, male block 212 moves upward under the drive of male block up and down drive module 213 to release the PVC strips. Then, female block front and rear drive module 214 moves backward to reset. At this time, gripper cylinder 241 is activated, causing the output shaft 2411 of gripper cylinder 241 to lift upward, thereby causing right front male gripper 244, right rear male gripper 245, left front male gripper 246, and left rear male gripper 247 to clamp and hold several PVC strips. However, the blade lifting module 2 Initiation 24 causes the movable blade 222 to move upwards, cutting the PVC strips. Then, the moving robotic arm 23 moves the gripper 24 and the discharge positioning cylinder assembly 26 forward synchronously to directly above the discharge conveyor 30. Next, the output shaft 2411 of the gripper cylinder 241 moves downwards, opening the right front gripper 244, right rear gripper 245, left front gripper 246, and left rear gripper 247, placing the cut PVC strips onto the discharge conveyor 30, which then transports them to the designated position. All of the above actions are automatically controlled by the control system.

[0038] This utility model of an automatic leaf cutter can automatically complete the cutting of several PVC strips, improving cutting efficiency and quality, and avoiding safety hazards for personnel.

[0039] It should be noted that the female hole can also be elliptical or other suitable shapes, and correspondingly, the male hole can also be elliptical or other suitable shapes; the number of automatic cutting modules 20 can be flexibly set, such as two or three sets or other numbers, and the positions of two or more automatic cutting modules 20 can be flexibly set on the frame as needed.

[0040] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An automatic leaf cutter, characterized in that: The system includes a frame and at least one automatic cutting module. The automatic cutting module includes a PVC strip feeding mechanism, a cutting component, a moving robot arm, a gripper, and a control system. A mounting platform is installed on the top rear side of the frame. The PVC strip feeding mechanism is installed at the rear of the mounting platform and is used to grip and feed several PVC strips forward. The cutting component is installed on the mounting platform and located directly in front of the PVC strip feeding mechanism, and is used to cut PVC strips. The moving robot arm is installed on the frame and located above and in front of the cutting component. The gripper is connected to the output end of the moving robot arm and is used to grip several PVC strips extending in front of the cutting component. The control system is installed on the frame and is used to control the movement of the PVC strip feeding mechanism, the cutting component, the moving robot arm, and the gripper.

2. The automatic leaf cutter according to claim 1, characterized in that: The PVC strip feeding mechanism includes a clamping female block, a male block, a male block up-and-down drive module electrically connected to the control system, and a female block front-and-back drive module electrically connected to the control system. The clamping female block is located above the mounting platform. The clamping female block has a female hole that extends through it from front to back, and a male block moving insertion hole that extends through it from top to bottom. The male block moving insertion hole penetrates the inner wall of the female hole. The male block has a male hole that extends through it from front to back. The male block up-and-down drive module is mounted on the clamping female block, and the output end of the male block up-and-down drive module is fixedly connected to the top of the male block. The male block up-and-down drive module drives the male block to move up and down. The female block front-and-back drive module is mounted on the frame and is used to drive the clamping female block to move back and forth.

3. The automatic leaf cutter according to claim 2, characterized in that: The mounting platform has a narrow guide hole running front to back. The front and rear drive module of the mother block includes a drive motor, a drive wheel, a driven wheel, a transmission belt, a belt clamp, front and rear rails, and front and rear sliders, all electrically connected to the control system. The drive motor is fixedly mounted on the frame below the mounting platform. The output shaft of the drive motor extends upward and is fixedly connected to the drive wheel, which is located below the mounting platform. The driven wheel is rotatably connected to the frame below the mounting platform, and is located directly in front of the drive wheel. The driving wheel and the driven wheel are both located on the left or right side of the guide hole. The transmission belt is wound around the driving wheel and the driven wheel. The lower end of the belt clamp is clamped on the transmission belt. The upper end of the belt clamp passes through the guide hole and is fixedly connected to the clamping block. The front and rear tracks are fixedly installed on the bottom of the mounting platform on the other side of the guide hole opposite to the transmission belt. The front and rear sliders slide back and forth and are engaged with the front and rear tracks. The front and rear sliders are fixedly connected to the lower end of the belt clamp.

4. The automatic leaf cutter according to claim 2, characterized in that: The rear wall of the clamping block protrudes backward from the outer edge of the female hole to form a swing guide ring.

5. The automatic leaf cutter according to claim 2, characterized in that: The clamping block includes a front connecting block, a rear connecting block, and two limiting side blocks. The front connecting block and the rear connecting block are respectively provided with a front female hole and a rear female hole. The two limiting side blocks are respectively fixedly clamped between the front connecting block and the rear connecting block and located on the left and right sides of the front female hole and the rear female hole. The front female hole and the rear female hole are interconnected to form the female hole. The male block moving insertion hole is formed between the front connecting block, the rear connecting block, and the two limiting side blocks.

6. The automatic leaf cutter according to claim 1, characterized in that: The gripper includes a gripper cylinder, a cylinder seat, a cylinder connector, a right front gripper, a right rear gripper, a left front gripper, a left rear gripper, a left connecting rod, a middle connecting shaft, a right connecting shaft, a right front connecting rod, a right rear connecting rod, a left connecting shaft, and a left connecting vertical rod, all electrically connected to the control system. The cylinder seat has vertically penetrating cylinder mounting holes. The gripper cylinder is fixedly mounted on the cylinder seat, and its output shaft passes downward through the cylinder mounting holes and connects to the middle connecting shaft. One end of the cylinder connector is fixedly connected to the gripper cylinder, and the other end is fixedly connected to the output end of the mobile manipulator. The left end of the right front gripper and the right end of the left front gripper are rotatably connected to the front end of the middle connecting shaft, and the left end of the right rear gripper and the right end of the left rear gripper are rotatably connected to the rear end of the middle connecting shaft. The upper end of the right front connecting rod is fixed to the right front part of the cylinder seat, and the lower end of the right front connecting rod is provided with a right front fixed insertion hole. The upper end of the right rear connecting rod is fixed to the right rear part of the cylinder seat, and the lower end of the right rear connecting rod is provided with a right rear fixed insertion hole. The front end of the right connecting shaft is fixedly inserted through the right front fixed insertion hole and rotatably connected to the right front pawl. The rear end of the right connecting shaft is fixedly inserted through the right rear fixed insertion hole and rotatably connected to the right rear pawl. The upper end of the left connecting vertical rod is fixed to the left part of the cylinder seat, and the lower end of the left connecting vertical rod is provided with a left fixed insertion hole. The left connecting shaft is fixedly inserted through the left fixed insertion hole, and the front and rear ends of the left connecting shaft are rotatably connected to the left front pawl and the left rear pawl, respectively. The right front pawl and the right rear pawl are both curved downwards from left to right, and the left front pawl and the left rear pawl are both curved downwards from right to left.

7. The automatic leaf cutter according to claim 6, characterized in that: The lower end of the output shaft of the gripper cylinder is provided with a circular movable hole, and the middle part of the intermediate connecting shaft is provided with a spherical movable head. The movable head is inserted into the movable hole, so that the intermediate connecting shaft is movably connected to the lower end of the output shaft of the gripper cylinder.

8. The automatic leaf cutter according to claim 2, characterized in that: The cutting assembly includes a fixed blade block, a movable blade block, a blade block fixing seat, and a blade block lifting module electrically connected to the control system. The blade block fixing seat includes a horizontal fixing block and a vertical mounting block. The horizontal fixing block is fixedly installed on the front side of the top of the mounting platform. The vertical mounting block is vertically fixed to the top of the horizontal fixing block. The vertical mounting block has a through hole that extends through itself from front to back. The fixed blade block is fixedly installed on the front wall of the vertical mounting block, and the fixed blade block has a through hole that extends through itself from front to back at the through hole of the mounting block. The mounting platform has a blade block lifting notch in front of the fixed blade block. The blade block lifting module is fixedly installed on the frame below the mounting platform. The output end of the blade block lifting module extends upward through the blade block lifting notch and is fixedly connected to the movable blade block. The upper rear end of the movable blade block forms a cutting edge, which presses against the front wall of the fixed blade block. The through hole of the mounting block is directly opposite the female hole.

9. The automatic leaf cutter according to claim 8, characterized in that: The automatic cutting module also includes an output positioning cylinder assembly, which includes a positioning mounting base, a cylindrical positioning cylinder, and a positioning cylinder front and rear drive module. The positioning mounting base is connected to the output end of the mobile robot and is located in front of the gripper. The positioning cylinder front and rear drive module is fixedly mounted on the positioning mounting base. The output end of the positioning cylinder front and rear drive module extends backward and is fixedly connected to the front end of the positioning cylinder. The rear end of the positioning cylinder faces the through hole of the fixed blade block. The positioning cylinder can extend backward to the front wall of the fixed blade block, and the rear end of the positioning cylinder can cover the through hole of the fixed blade block.

10. The automatic leaf cutter according to claim 9, characterized in that: The positioning mounting base includes a vertical mounting block and a horizontal connecting block. One end of the horizontal connecting block is connected to the output end of the mobile robot, and the other end of the horizontal connecting block is vertically connected to the upper end of the vertical mounting block. The vertical mounting block is oriented left and right and placed vertically. A drive mounting hole is provided on the vertical mounting block. The front and rear drive modules of the positioning cylinder are fixedly installed on the front wall of the vertical mounting block, and the output end of the front and rear drive modules of the positioning cylinder passes through the drive mounting hole and is fixedly connected to the front end of the positioning cylinder.

Images