Injection molded parts automatic cutting system, cutting production line and cutting method

Abstract

The present invention provides an automatic cutting system for injection molded parts, a cutting production line and a cutting method, the cutting system comprises a workbench, a cutting mechanism and a fixed suction mechanism are arranged on one side of the workbench, the fixed suction mechanism comprises a suction frame, a cylinder mounting seat is arranged on the piston of a horizontal rodless cylinder, a vertical cylinder is arranged on the cylinder mounting seat, a piston rod of the vertical cylinder is arranged with a mounting seat, the mounting seat is connected with an upper limit plate and a lower limit plate, a plurality of limit cylinders are arranged at the bottom of the upper limit plate corresponding to a single injection molded part, a vacuum suction cup is arranged in the limit cylinder, a cutting gap is arranged between the limit cylinder and the lower limit plate, a through hole for a single injection molded part to pass through is arranged on the lower limit plate, the cutting mechanism comprises a cutting frame, a horizontal cylinder is arranged on the cutting frame, a motor mounting seat is arranged on the piston rod of the horizontal cylinder, a cutting motor is arranged on the motor mounting seat, and a cutting blade is arranged at the output end of the cutting motor. It is convenient to cut off the connection waste between the single injection molded parts and improve the cutting efficiency.

Description

Technical Field

[0001] The invention relates to the field of automatic cutting, and in particular to an automatic cutting system for injection molded parts, a cutting production line and a cutting method. Background Art

[0002] Injection molded parts refer to a type of injection molded product produced by mixing polypropylene or polyethylene materials with some organic solvents and using an injection molding machine. After the injection molding material is fully heated in the heating material tube, it is pushed into the closed mold cavity by a reciprocating push rod to produce an injection molded product. This method is convenient for producing some injection molded products with strict size requirements and irregular shapes. For small injection molded parts, the mold includes multiple mold cavities, so that multiple injection molded parts can be molded at one time. Due to the existence of runners in the injection mold, there is excess connection waste between adjacent injection molded parts of the injection molded product produced at one time, which needs to be further removed before a single injection molded part can be put into use. Figure 1 For the injection molding products of the shock absorber blocks on the skateboard, the end of a single injection molded part generates connection waste due to the existence of the runner. The connection waste connects the single injection molded parts of multiple shock absorbers together. After the injection molding is completed, the connection waste needs to be cut off before it can be put into use. At present, this cutting process mostly uses manual cutting, which has low cutting efficiency and high error rate.

[0003] CN208343364U discloses an injection molded part cutting machine, which can cut off the sprue of the injection molded part, but it is only suitable for cutting plate-shaped injection molded parts. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide an automatic cutting system for injection molded parts, a cutting production line and a cutting method, so as to facilitate the cutting of connecting waste materials between single injection molded parts and improve the cutting efficiency.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is: an automatic cutting system for injection molded parts, including a workbench, a cutting mechanism and a fixed suction mechanism are arranged on one side of the workbench, the fixed suction mechanism includes a suction frame, a mounting plate is arranged on the suction frame, a horizontal rodless cylinder is mounted on the mounting plate, a cylinder mounting seat is arranged on the piston of the horizontal rodless cylinder, a vertical cylinder is mounted on the cylinder mounting seat, a mounting seat is arranged at the lower end of the piston rod of the vertical cylinder, the mounting seat is connected to the upper limit plate and the lower limit plate through a connecting piece, a plurality of limiting cylinders are arranged at the bottom of the upper limit plate corresponding to a single injection molded part, a vacuum suction cup is installed in the limiting cylinder, a cutting gap is arranged between the limiting cylinder and the lower limit plate, a through hole is arranged on the lower limit plate for a single injection molded part to pass through, and the through hole is arranged corresponding to the limiting cylinder, the cutting mechanism includes a cutting frame, a horizontal cylinder is arranged on the cutting frame, a motor mounting seat is arranged at the end of the piston rod of the horizontal cylinder, a cutting motor is arranged on the motor mounting seat, and a horizontally arranged cutting blade is arranged at the output end of the cutting motor.

[0006] In a preferred solution, a limit rod is provided on the lower limit plate, a linear bearing for the limit rod to pass through is provided on the cylinder mounting seat, a slide rail is provided on the cutting machine frame, and a slider cooperating with the slide rail is provided on one side of the motor mounting seat.

[0007] In a preferred embodiment, a connecting rod is provided at the upper end of the vacuum suction cup, a through hole is provided on the upper limit plate for the connecting rod to pass through, a limiting nut is provided at the upper end of the connecting rod, a spring is passed through the connecting rod, and the spring is arranged between the upper limit plate and the vacuum suction cup.

[0008] The present invention also provides an automatic cutting production line for injection molded parts, including an automatic cutting system for injection molded parts, wherein the workbench is a dividing plate, and a plurality of workstations are arranged on the workbench. A feeding system, an automatic cutting system for injection molded parts and a waste collection mechanism are sequentially arranged along the corresponding workstations of the workbench. The feeding system includes a feeding frame, a cylinder mounting plate is provided on the feeding frame, a rodless cylinder is provided on the cylinder mounting plate, a feeding cylinder mounting plate is provided on the piston of the rodless cylinder, a feeding cylinder mounting plate is provided on the feeding cylinder mounting plate, a feeding cylinder is provided on the feeding cylinder mounting plate, a piston rod at the lower end of the feeding cylinder is connected to a suction cup mechanism through a connecting seat, the suction cup mechanism includes a mounting plate and a plurality of feeding vacuum suction cups arranged on the mounting plate, and the waste collection mechanism includes a waste collection frame arranged on one side of the workbench, a pushing cylinder is provided on the waste collection frame, and the piston rod of the pushing cylinder is connected to the pushing plate.

[0009] In a preferred embodiment, a positioning mechanism is provided at each workstation, and the positioning mechanism includes a lifting cylinder arranged at the bottom of the workbench, a positioning plate is provided at the upper end of the piston rod of the lifting cylinder, a through hole is provided on the workbench for the positioning plate to pass through, and a positioning rod corresponding to a single injection molded part is provided on the positioning plate.

[0010] In a preferred solution, each workstation is provided with a clamping mechanism, which includes two sets of clamping cylinders arranged on a workbench, piston rods of the clamping cylinders are connected to clamping rings, and the two clamping rings clamp the connection waste of the injection molded parts.

[0011] In a preferred solution, a dust collecting mechanism is provided on one side of the fixed suction mechanism, and the dust collecting mechanism includes a dust collecting box arranged on the workbench, the dust suction port of the dust collecting box faces the cutting blade, a fan is provided in the dust collecting box, and a dust guide pipe is provided at the bottom of the dust collecting box.

[0012] In the preferred scheme, a straightening mechanism is correspondingly arranged at the workstation between the feeding system and the automatic cutting system for injection molded parts, and the straightening mechanism includes a straightening frame, a downward pressure cylinder mounting seat is provided on the straightening frame, a downward pressure cylinder is provided on the downward pressure cylinder mounting seat, a downward pressure plate is provided at the end of the piston rod of the downward pressure cylinder, a limiting linear bearing is provided on the pressure cylinder mounting seat, a guide rod cooperating with the limiting linear bearing is provided on the downward pressure plate, and a displacement sensor is provided on the downward pressure plate.

[0013] The present invention also provides an automatic cutting method for injection molded parts, comprising the following steps:

[0014] Step 1: Place the molded part on the workbench, move the piston of the horizontal rodless cylinder to one end close to the workbench, and then move the vacuum suction cup to the top of the injection molded product;

[0015] Step 2: The vertical cylinder is started to drive the mounting seat to move downward, and the upper limit plate and the lower limit plate are driven to move downward at the same time. A single injection molded part of the injection molded product passes through the through hole on the lower limit plate. The lower limit plate presses the connection waste, and the vacuum suction cup presses the single injection molded part.

[0016] Step 3: Start the horizontal cylinder and the cutting motor, and the cutting blade passes through the cutting gap between the limit cylinder and the lower limit plate to cut the bottom of the single injection molded part, so that the single injection molded part and the connection waste are separated;

[0017] Step 4: The vertical cylinder retracts, the vacuum suction cup vacuum absorbs the single injection molded part, lifts it upward, and the horizontal rodless cylinder retracts to transfer the single injection molded part, while releasing the pressure on the connected waste.

[0018] In the preferred scheme, in the step one, automatic loading is carried out through the loading system, and the injection molded parts are directly sucked from the injection molding machine by the loading vacuum suction cup, and the rodless cylinder is started to place the injection molded parts on the corresponding workstations on the workbench; in the step four, after the single injection molded parts are transferred, the pushing cylinder is started to drive the pushing plate to push the connected waste away from the workbench.

[0019] The present invention provides an automatic injection molded part cutting system, a cutting production line and a cutting method, which can cut the injection molded parts after injection molding, separate the individual injection molded parts from the redundant connection waste formed in the flow channel, and realize automatic cutting. On the one hand, it can improve the parts processing efficiency, and on the other hand, it can ensure the cutting and separation accuracy of the single injection molded parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention will be further described below in conjunction with the accompanying drawings and implementation examples:

[0021] Figure 1 It is a structural schematic diagram of an injection molded part;

[0022] Figure 2 It is a structural schematic diagram of the automatic cutting system for injection molded parts;

[0023] Figure 3 It is a structural schematic diagram of a fixed suction mechanism;

[0024] Figure 4 Schematic diagram of the installation structure of a preferred vacuum suction cup;

[0025] Figure 5 is a schematic diagram of the structure of the cutting mechanism;

[0026] Figure 6 This is the overall structural diagram of the automatic cutting production line for injection molded parts;

[0027] Figure 7 It is a structural diagram of the feeding system;

[0028] Figure 8 is a schematic diagram of the structure of the waste collection mechanism;

[0029] Fig. 9 It is a structural schematic diagram of the positioning mechanism;

[0030] Fig.10 is a structural schematic diagram of the clamping mechanism;

[0031] Fig.11 It is a structural schematic diagram of the dust collecting mechanism;

[0032] Fig.12 It is a structural schematic diagram of the straightening mechanism;

[0033] In the figure: workbench 1, cutting mechanism 2, fixed suction mechanism 3, feeding system 4, waste collection mechanism 5, positioning mechanism 6, clamping mechanism 7, dust collection mechanism 8, straightening mechanism 9, single injection molded part 10, connecting waste 11, cutting frame 201, horizontal cylinder 202, motor mounting seat 203, cutting motor 204, cutting blade 205, slide rail 206, slider 207, suction frame 301, mounting plate 302, horizontal rodless cylinder 303, cylinder mounting seat 304, vertical cylinder 305, mounting seat 306, upper limit plate 307, lower limit plate 308, limit cylinder 309, vacuum suction cup 310, limit rod 311, connecting rod 312, limit nut 313, spring 314, linear bearing 315, feeding frame 401, cylinder mounting plate 402, rodless cylinder 403, feeding cylinder mounting plate 404, feeding cylinder 405, connecting seat 406, mounting plate 407, feeding vacuum suction cup 408, waste collection frame 501, pushing cylinder 502, pushing plate 503, lifting cylinder 601, positioning plate 602, positioning rod 603, clamping cylinder 701, clamping ring 702, dust collecting box 801, dust suction port 802, dust guide pipe 803, straightening frame 901, pressing cylinder mounting seat 902, pressing cylinder 903, pressing plate 904, limiting linear bearing 905, guide rod 906, displacement sensor 907. DETAILED DESCRIPTION

[0034] Example 1: Figures 2~5As shown, an automatic cutting system for injection molded parts includes a workbench 1, a cutting mechanism 2 and a fixed suction mechanism 3 are arranged on one side of the workbench 1, the fixed suction mechanism 3 includes a suction frame 301, a mounting plate 302 is arranged on the suction frame 301, a horizontal rodless cylinder 303 is mounted on the mounting plate 302, a cylinder mounting seat 304 is arranged on the piston of the horizontal rodless cylinder 303, a vertical cylinder 305 is mounted on the cylinder mounting seat 304, a mounting seat 306 is arranged at the lower end of the piston rod of the vertical cylinder 305, the mounting seat 306 is respectively connected to an upper limit plate 307 and a lower limit plate 308 through a connecting piece, the connecting piece can be a rod, the lower limit plate 308 is arranged below the upper limit plate 307, a plurality of limit cylinders 309 are arranged at the bottom of the upper limit plate 307 corresponding to a single injection molded part 10, and the arrangement and number of the limit cylinders 309 are the same as the distribution and number of the single injection molded part 10 The vacuum suction cup 310 is installed in the limiting cylinder 309. When in use, the side wall of the limiting cylinder 309 is provided with a through groove for the suction nozzle of the vacuum suction cup 310 to pass through, so that the vacuum suction cup 310 can be easily loaded from the opening at the lower end of the limiting cylinder 309. A cutting gap is provided between the limiting cylinder 309 and the lower limiting plate 308. The distance between the vacuum suction cup 310 and the lower side of the lower limiting plate 308 is consistent with the height of a single injection molded part 10. The lower limiting plate 308 is provided with a through hole for a single injection molded part 10 to pass through, and the through hole is arranged corresponding to the limiting cylinder 309. The cutting mechanism 2 includes a cutting frame 201, a horizontal cylinder 202 is provided on the cutting frame 201, a motor mounting seat 203 is provided at the piston rod end of the horizontal cylinder 202, a cutting motor 204 is provided on the motor mounting seat 203, and a horizontally arranged cutting blade 205 is provided at the output end of the cutting motor 204.

[0035] Preferably, a limiting rod 311 is provided on the lower limiting plate 308, a linear bearing 315 for the limiting rod 311 to pass through is provided on the cylinder mounting seat 304, a slide rail 206 is provided on the cutting frame 201, and a slider 207 cooperating with the slide rail 206 is provided on one side of the motor mounting seat 203.

[0036] The cooperation between the limit rod 311 and the linear bearing 315 can ensure that the upper limit plate 307 and the lower limit plate 308 can move vertically up and down, ensuring that a single injection molded part 10 can be pressed accurately. By setting the slide rail 206 and the slider 207, the cutting blade 205 can be supplied horizontally to ensure the cutting quality.

[0037] Preferably, Figure 4As shown, a connecting rod 312 is provided at the upper end of the vacuum suction cup 310, a through hole is provided on the upper limit plate 307 for the connecting rod 312 to pass through, a limiting nut 313 is provided at the upper end of the connecting rod 312, a spring 314 is passed through the connecting rod 312, and the spring 314 is arranged between the upper limit plate 307 and the vacuum suction cup 310. The side wall of the limiting cylinder 309 is provided with a through groove for the suction nozzle of the vacuum suction cup 310 to pass through, so that the vacuum suction cup 310 can move up and down conveniently without causing interference. By arranging the spring 314, it can be ensured that the vacuum suction cup 310 is arranged closely to the upper side of the single injection molded part 10, and when pressed down, it can play a buffering role to prevent the single injection molded part 10 from being pressed and deformed. At the same time, when the height of the single injection molded part 10 changes, it can still be ensured that the vacuum suction cup 310 is arranged closely to the upper side of the single injection molded part 10 to ensure effective adsorption.

[0038] The specific use includes the following steps:

[0039] Step 1: Place the molded part on the workbench 1, and move the piston of the horizontal rodless cylinder 303 to one end close to the workbench 1. At this time, the vacuum suction cup 310 moves to the top of the injection molded product.

[0040] Step 2: The vertical cylinder 305 is started, driving the mounting seat 306 to move downward, driving the upper limit plate 307 and the lower limit plate 308 to move downward at the same time, and the single injection molded part 10 of the injection molded product passes through the through hole on the lower limit plate 308. The lower limit plate 308 presses the connecting waste 11, and the vacuum suction cup 310 presses the single injection molded part 10.

[0041] Step 3: Start the horizontal cylinder 202 and the cutting motor 204, and the cutting blade 205 passes through the cutting gap between the limiting cylinder 309 and the lower limiting plate 308 to cut the bottom of the single injection molded part 10, so that the single injection molded part 10 and the connection waste 11 are separated.

[0042] Step 4, the vacuum suction cup 310 is evacuated, and the vacuum suction cup 310 vacuum absorbs the single injection molded part 10, the vertical cylinder 305 retracts and lifts upward, and at the same time releases the pressure on the connected waste 11, and the horizontal rodless cylinder 303 retracts to transfer the single injection molded part 10. When in use, a finished product collection box is set on one side of the workbench 1. When the single injection molded part 10 moves to the top of the finished product collection box, the vacuum suction cup 310 loses suction, and the single injection molded part 10 falls into the finished product collection box due to its own gravity.

[0043] Embodiment 2: Different from embodiment 1, as Fig. 9 and 10As shown, a positioning mechanism 6 is arranged on the workbench 1, and the positioning mechanism 6 includes a lifting cylinder 601 arranged at the bottom of the workbench 1, a positioning plate 602 is arranged at the upper end of the piston rod of the lifting cylinder 601, a through hole is arranged on the workbench 1 for the positioning plate 602 to pass through, and a positioning rod 603 corresponding to a single injection molded part 10 is arranged on the positioning plate 602.

[0044] When in use, the injection molded product is placed on the positioning plate 602 and the positioning rod 603 is inserted into the center hole of a single injection molded part 10 to achieve positioning of the injection molded product, which can ensure that the vacuum suction cup 310 can be set directly opposite the single injection molded part 10 to ensure effective adsorption.

[0045] Preferably, each workstation is provided with a clamping mechanism 7, which includes two groups of clamping cylinders 701 arranged on the workbench 1, the piston rods of the clamping cylinders 701 are connected to the clamping rings 702, and the two clamping rings 702 clamp the connection waste 11 of the injection molded part.

[0046] By clamping the connection waste 11 of the injection molded part through the clamping ring 702, it is possible to prevent the injection molded product from radially swinging and affecting the cutting accuracy.

[0047] The specific use includes the following steps:

[0048] Step 1, the lifting cylinder 601 drives the positioning plate 602 and the positioning rod 603 to move upward. When the upper side of the positioning plate 602 is flush with the upper side of the workbench 1, the upward lifting is stopped, and the molded part is placed on the workbench 1, positioned by the positioning rod 603, and then the clamping cylinder 701 is started to clamp the injection molded product. The piston of the horizontal rodless cylinder 303 moves to one end close to the workbench 1. At this time, the vacuum suction cup 310 moves to the top of the injection molded product.

[0049] Step 2: The vertical cylinder 305 is started, driving the mounting seat 306 to move downward, driving the upper limit plate 307 and the lower limit plate 308 to move downward at the same time, and the single injection molded part 10 of the injection molded product passes through the through hole on the lower limit plate 308. The lower limit plate 308 presses the connecting waste 11, and the vacuum suction cup 310 presses the single injection molded part 10.

[0050] Step 3: Start the horizontal cylinder 202 and the cutting motor 204, and the cutting blade 205 passes through the cutting gap between the limiting cylinder 309 and the lower limiting plate 308 to cut the bottom of the single injection molded part 10, so that the single injection molded part 10 and the connection waste 11 are separated.

[0051] Step 4, the vacuum suction cup 310 is evacuated, and the vacuum suction cup 310 vacuum absorbs the single injection molded part 10, the vertical cylinder 305 retracts and lifts upward, and at the same time releases the pressure on the connected waste 11, and the horizontal rodless cylinder 303 retracts to transfer the single injection molded part 10. When in use, a finished product collection box is set on one side of the workbench 1. When the single injection molded part 10 moves to the top of the finished product collection box, the vacuum suction cup 310 loses suction, and the single injection molded part 10 falls into the finished product collection box due to its own gravity.

[0052] Example 3: Figures 6 to 12 As shown, an automatic cutting production line for injection molded parts includes the above-mentioned automatic cutting system for injection molded parts, the workbench 1 is a dividing plate, and a plurality of workstations are arranged on the workbench 1. In this embodiment, four workstations are arranged, and a feeding system 4, an automatic cutting system for injection molded parts, and a waste collection mechanism 5 are arranged in sequence along the corresponding workstations of the workbench 1. The feeding system 4 includes a feeding frame 401, a cylinder mounting plate 402 is arranged on the feeding frame 401, a rodless cylinder 403 is arranged on the cylinder mounting plate 402, and a feeding cylinder mounting is arranged on the piston of the rodless cylinder 403. Plate 404, a loading cylinder 405 is provided on the loading cylinder mounting plate 404, the loading cylinder 405 is a double-axis slide cylinder, the piston rod at the lower end of the loading cylinder 405 is connected to the suction cup mechanism through a connecting seat 406, the suction cup mechanism includes a mounting plate 407 and a plurality of loading vacuum suction cups 408 arranged on the mounting plate 407, the waste collecting mechanism 5 includes a waste collecting frame 501 arranged on one side of the workbench 1, a pushing cylinder 502 is provided on the waste collecting frame 501, and the piston rod of the pushing cylinder 502 is connected to the pushing plate 503.

[0053] During operation, the injection molded workpiece to be processed is sucked from the injection molding machine just below the left limit of the rodless cylinder 403 by using the loading vacuum suction cup 408, and the horizontal movement is achieved by the rodless cylinder 403, and the vertical movement is achieved by the loading cylinder 405. Finally, the injection molded workpiece to be processed on the injection molding machine just below the left limit of the rodless cylinder 403 is sucked onto the workbench 1 just below the right limit, realizing automatic loading.

[0054] After the cutting is completed, the pushing plate 503 is pushed by the pushing cylinder 502 to push out the connection waste 11 remaining after cutting on the workbench 1, and the connection waste 11 falls into the waste collection box.

[0055] A positioning mechanism 6 and a clamping mechanism 7 are provided at each workstation to facilitate continuous operation of the workpiece at each workstation.

[0056] A dust collecting mechanism 8 is provided on one side of the fixed suction mechanism 3, and the dust collecting mechanism 8 includes a dust collecting box 801 arranged on the workbench 1, and the dust suction port 802 of the dust collecting box 801 faces the cutting blade 205. A fan is provided in the dust collecting box 801, and the fan is driven by a motor on the top of the dust collecting box 801. A dust guide pipe 803 is provided at the bottom of the dust collecting box 801.

[0057] When working, the fan rotates at high speed, generating negative pressure at the dust suction port 802, thereby sucking the dust generated by cutting into the dust box 801, and then guiding the dust collected in the dust box 801 into the dust collection box through the dust guide pipe 803. The dust collection mechanism 8 can efficiently absorb the dust generated during cutting, greatly reducing the dust content in the working environment, ensuring the health and safety of the workers, and meeting the relevant national environmental safety regulations and requirements.

[0058] Preferably, a straightening and correcting mechanism 9 is correspondingly arranged at the workstation between the feeding system 4 and the automatic cutting system for injection molded parts, and the straightening and correcting mechanism 10 includes a straightening frame 901, a downward pressure cylinder mounting seat 902 is provided on the straightening frame 901, a downward pressure cylinder mounting seat 902 is provided on a downward pressure cylinder 903, a downward pressure plate 904 is provided at the end of the piston rod of the downward pressure cylinder 903, a limiting linear bearing 905 is provided on the pressure cylinder mounting seat 902, a guide rod 906 cooperating with the limiting linear bearing 905 is provided on the downward pressure plate 904, and a displacement sensor 907 is provided on the downward pressure plate 904.

[0059] When the injection molded product to be processed is not placed flat on the workbench 1, in order to prevent the subsequent cutting from being skewed, the lower pressing plate 904 is driven by the pressing cylinder 903 to press down the injection molded product to be processed, and cooperates with the positioning rod 603 to achieve straightening. The displacement sensor 907 can detect the distance between the lower pressing plate 904 and the injection molded product to be processed, ensuring that the lower pressing plate 904 falls to a suitable position.

[0060] An automatic cutting method for injection molded parts comprises the following steps:

[0061] Step 1. In the step 1, automatic loading is performed through the loading system 4, and the loading vacuum suction cup 408 is used to directly suck the injection molded part from the injection molding machine. The rodless cylinder 403 is started to place the injection molded part on the corresponding workstation on the workbench 1, and the piston of the horizontal rodless cylinder 303 moves to one end close to the workbench 1. At this time, the vacuum suction cup 310 moves to the top of the injection molded product.

[0062] Step 2: The vertical cylinder 305 is started, driving the mounting seat 306 to move downward, driving the upper limit plate 307 and the lower limit plate 308 to move downward at the same time, and the single injection molded part 10 of the injection molded product passes through the through hole on the lower limit plate 308. The lower limit plate 308 presses the connecting waste 11, and the vacuum suction cup 310 presses the single injection molded part 10.

[0063] Step 3: Start the horizontal cylinder 202 and the cutting motor 204, and the cutting blade 205 passes through the cutting gap between the limiting cylinder 309 and the lower limiting plate 308 to cut the bottom of the single injection molded part 10, so that the single injection molded part 10 and the connection waste 11 are separated.

[0064] Step 4, the vacuum suction cup 310 is evacuated, and the vacuum suction cup 310 vacuum absorbs the single injection molded part 10, the vertical cylinder 305 retracts and lifts upward, and at the same time releases the pressure on the connected waste 11, and the horizontal rodless cylinder 303 retracts to transfer the single injection molded part 10. When in use, a finished product collection box is set on one side of the workbench 1. When the single injection molded part 10 moves above the finished product collection box, the vacuum suction cup 310 loses suction, and the single injection molded part 10 falls into the finished product collection box due to its own gravity. After the single injection molded part 10 is transferred, the pushing cylinder 502 is started to drive the pushing plate 503 to push the connected waste 11 away from the workbench 1.

Claims

1. An automatic cutting system for injection molded parts, characterized in that: The invention comprises a workbench (1), wherein a cutting mechanism (2) and a fixed suction mechanism (3) are provided on one side of the workbench (1), wherein the fixed suction mechanism (3) comprises a suction frame (301), wherein a mounting plate (302) is provided on the suction frame (301), wherein a horizontal rodless cylinder (303) is mounted on the mounting plate (302), wherein a cylinder mounting seat (304) is provided on the piston of the horizontal rodless cylinder (303), wherein a vertical cylinder (305) is mounted on the cylinder mounting seat (304), wherein a mounting seat (306) is provided at the lower end of the piston rod of the vertical cylinder (305), wherein the mounting seat (306) is connected to an upper limit plate (307) and a lower limit plate (308) via a connecting piece, wherein the bottom of the upper limit plate (307) corresponds to a single injection The plastic part (10) is provided with a plurality of limiting cylinders (309), the vacuum suction cup (310) is installed in the limiting cylinder (309), a cutting gap is provided between the limiting cylinder (309) and the lower limiting plate (308), the lower limiting plate (308) is provided with a through hole for a single injection molded part (10) to pass through, the through hole is arranged corresponding to the limiting cylinder (309), the cutting mechanism (2) comprises a cutting frame (201), a horizontal cylinder (202) is arranged on the cutting frame (201), a motor mounting seat (203) is arranged at the end of the piston rod of the horizontal cylinder (202), a cutting motor (204) is arranged on the motor mounting seat (203), and a horizontally arranged cutting blade (205) is arranged at the output end of the cutting motor (204).

2. The automatic cutting system for injection molded parts according to claim 1, characterized in that: The lower limit plate (308) is provided with a limit rod (311), the cylinder mounting seat (304) is provided with a linear bearing (315) for the limit rod (311) to pass through, the cutting machine frame (201) is provided with a slide rail (206), and one side of the motor mounting seat (203) is provided with a slide block (207) that cooperates with the slide rail (206).

3. The automatic cutting system for injection molded parts according to claim 1, characterized in that: A connecting rod (312) is provided at the upper end of the vacuum suction cup (310); a through hole for the connecting rod (312) to pass through is provided on the upper limit plate (307); a limiting nut (313) is provided at the upper end of the connecting rod (312); a spring (314) is passed through the connecting rod (312); and the spring (314) is arranged between the upper limit plate (307) and the vacuum suction cup (310).

4. An automatic cutting production line for injection molded parts, characterized in that: The invention comprises the automatic cutting system for injection molded parts according to any one of claims 1 to 3, wherein the workbench (1) is a dividing plate, a plurality of workstations are arranged on the workbench (1), a feeding system (4), an automatic cutting system for injection molded parts and a waste collection mechanism (5) are arranged in sequence along the corresponding workstations of the workbench (1), the feeding system (4) comprises a feeding frame (401), a cylinder mounting plate (402) is arranged on the feeding frame (401), a rodless cylinder (403) is arranged on the cylinder mounting plate (402), and a feeding cylinder mounting plate (404) is arranged on the piston of the rodless cylinder (403). A loading cylinder (405) is provided on a loading cylinder mounting plate (404); a piston rod at the lower end of the loading cylinder (405) is connected to a suction cup mechanism via a connecting seat (406); the suction cup mechanism comprises a mounting plate (407) and a plurality of loading vacuum suction cups (408) arranged on the mounting plate (407); the waste collection mechanism (5) comprises a waste collection frame (501) arranged on one side of the workbench (1); a pushing cylinder (502) is provided on the waste collection frame (501); and a piston rod of the pushing cylinder (502) is connected to a pushing plate (503).

5. The automatic cutting production line for injection molded parts according to claim 4, characterized in that: A positioning mechanism (6) is provided on each workstation, the positioning mechanism (6) comprising a lifting cylinder (601) provided at the bottom of a workbench (1), a positioning plate (602) being provided at the upper end of a piston rod of the lifting cylinder (601), a through hole for the positioning plate (602) to pass through being provided on the workbench (1), and a positioning rod (603) corresponding to a single injection molded part (10) being provided on the positioning plate (602).

6. The automatic cutting production line for injection molded parts according to claim 4, characterized in that: Each workstation is provided with a clamping mechanism (7), the clamping mechanism (7) comprising two groups of clamping cylinders (701) arranged on the workbench (1), the piston rods of the clamping cylinders (701) being connected to clamping rings (702), and the two clamping rings (702) clamping the connection waste (11) of the injection molded part.

7. The automatic cutting production line for injection molded parts according to claim 4, characterized in that: A dust collecting mechanism (8) is provided on one side of the fixed suction mechanism (3), the dust collecting mechanism (8) comprising a dust collecting box (801) arranged on the workbench (1), a dust suction port (802) of the dust collecting box (801) facing the cutting blade (205), a fan is provided in the dust collecting box (801), and a dust guide pipe (803) is provided at the bottom of the dust collecting box (801).

8. The automatic cutting production line for injection molded parts according to claim 4, characterized in that: A straightening and correcting mechanism (9) is provided at a workstation corresponding to the feeding system (4) and the automatic injection molding cutting system. The straightening and correcting mechanism (9) comprises a straightening frame (901), a downward pressure cylinder mounting seat (902) is provided on the straightening frame (901), a downward pressure cylinder (903) is provided on the downward pressure cylinder mounting seat (902), a downward pressure plate (904) is provided at the end of the piston rod of the downward pressure cylinder (903), a limit linear bearing (905) is provided on the pressure cylinder mounting seat (902), a guide rod (906) cooperating with the limit linear bearing (905) is provided on the downward pressure plate (904), and a displacement sensor (907) is provided on the downward pressure plate (904).

9. A method for automatically cutting injection molded parts, characterized in that: The method of cutting injection molded parts using the automatic cutting production line for injection molded parts according to any one of claims 4 to 8 comprises the following steps: Step 1: Place the molded part on the workbench (1), and move the piston of the horizontal rodless cylinder (303) to one end close to the workbench (1). At this time, the vacuum suction cup (310) moves to the top of the injection molded product; Step 2: The vertical cylinder (305) is started, driving the mounting seat (306) to move downward, driving the upper limit plate (307) and the lower limit plate (308) to move downward simultaneously, and a single injection molded part (10) of the injection molded product passes through the through hole on the lower limit plate (308), the lower limit plate (308) presses the connection waste (11), and the vacuum suction cup (310) presses the single injection molded part (10); Step 3: Start the horizontal cylinder (202) and the cutting motor (204), and the cutting blade (205) passes through the cutting gap between the limiting cylinder (309) and the lower limiting plate (308), cutting the bottom of the single injection molded part (10), and separating the single injection molded part (10) from the connection waste (11); Step 4: The vertical cylinder (305) retracts, the vacuum suction cup (310) vacuum-adsorbs the single injection molded part (10) and lifts it upward, the horizontal rodless cylinder (303) retracts, the single injection molded part (10) is transferred, and the connection waste (11) is released from compression.

10. The automatic cutting method for injection molded parts according to claim 9, characterized in that: In the step one, automatic loading is performed through the loading system (4), and the loading vacuum suction cup (408) is used to directly suck the injection-molded injection molded part from the injection molding machine, and the rodless cylinder (403) is started to place the injection molded part on the corresponding workstation on the workbench (1); in the step four, after the single injection molded part (10) is transferred, the push cylinder (502) is started to drive the push plate (503) to push the connection waste (11) away from the workbench (1).

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