CN112247268A

CN112247268A - Plastic mold cutting device

Info

Publication number: CN112247268A
Application number: CN202011036285.6A
Authority: CN
Inventors: 龙光菊
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-09-27
Filing date: 2020-09-27
Publication date: 2021-01-22

Abstract

The invention discloses a plastic die cutting device, and belongs to the field of plastic die cutting. A plastic die cutting device comprises a box body, wherein a workbench is arranged at the top of the box body, a frame plate is fixedly connected to the top of the workbench, a sliding plate is connected in the frame plate in a sliding mode, and a cutting blade is connected to the bottom of the sliding plate in a sliding mode; a first air cylinder and a second air cylinder are further arranged in the box body, the top of the first piston is fixedly connected with a top rod, the top of the top rod is connected with a top plate, and the top plate is connected in the workbench; the side wall of the box body is detachably connected with a connecting plate, the outer wall of the top of the connecting plate is fixedly connected with a vertical plate, the vertical plate is provided with an air outlet nozzle, and the box body and the workbench are provided with corresponding discharging grooves; the scrap blowing device can blow off scrap conveniently, prevents the scrap from being adhered to the joint of the die and the workbench, is convenient to clean, and ensures the sanitation condition of a working environment and the health of operators.

Description

Plastic mold cutting device

Technical Field

The invention relates to the technical field of plastic die cutting, in particular to a plastic die cutting device.

Background

The plastic mould is a tool which is matched with a plastic forming machine in the plastic processing industry and endows a plastic product with complete configuration and accurate size.

Present plastic mold need cut it in process of production, but traditional mould cutting device all is direct placing the mould when using on the workstation and cuts, and the leftover bits of production can the adhesion be difficult for clearing up on the surface of mould to influenced the cutting effect, secondly still can lead to on-the-spot holistic sanitary environment situation relatively poor, influence on-the-spot operating personnel's healthy.

Disclosure of Invention

The invention aims to solve the problems in the prior art and provides a plastic die cutting device.

In order to achieve the purpose, the invention adopts the following technical scheme:

a plastic die cutting device comprises a box body, wherein a workbench is arranged at the top of the box body, a frame plate is fixedly connected to the top of the workbench, a sliding plate is connected in the frame plate in a sliding mode, and a cutting blade is connected to the bottom of the sliding plate in a sliding mode;

a first air cylinder and a second air cylinder are further arranged in the box body, a first piston is connected in the first air cylinder in a sliding mode, the top of the first piston is fixedly connected with a top rod, the top of the top rod is connected with a top plate, and the top plate is connected in the workbench;

the air outlet device is characterized in that a second piston is connected in the second air cylinder in a sliding mode, an air outlet pipe is arranged on the outer wall of the second air cylinder, a connecting plate is detachably connected to the side wall of the box body, a vertical plate is fixedly connected to the outer wall of the top of the connecting plate, an air outlet nozzle is arranged on the vertical plate, a communicating pipe communicated with the air outlet pipe is arranged on the outer wall of the connecting plate, and corresponding material discharging grooves are formed in the box body and.

Preferably, the top outer wall fixedly connected with cylinder of deckle board, the output at the cylinder is connected to the slide, be equipped with the spout in the slide, the spout internal rotation is connected with the lead screw, the outer wall threaded connection of lead screw has the T template, the outer wall fixedly connected with step motor of T template, the output at step motor is connected to the cutting piece.

Preferably, a limiting rod is arranged in the sliding groove, the T-shaped plate is connected to the limiting rod in a sliding mode, the outer wall of the screw rod is connected with a rotating handle, and a long groove corresponding to the screw rod is formed in the frame plate.

Preferably, the bottom fixedly connected with briquetting of slide, be equipped with the recess on the box, sliding connection has the depression bar in the recess, the bottom of depression bar is equipped with the teeth of a cogwheel, still rotate in the box and be connected with three intermeshing's gear, one of them end the gear and the teeth of a cogwheel mesh mutually, the other end gear engagement is connected with the rack board, the bottom at first piston is connected to the rack board.

Preferably, the bottom fixedly connected with round bar of first inflator, rack plate sliding connection is on the round bar, the outer wall of ejector pin is fixedly connected with stopper still.

Preferably, the outer wall fixedly connected with threaded rod of second piston, the outer wall threaded connection of threaded rod has the second band pulley, the second band pulley is connected with first band pulley through the belt, first band pulley rotates through first pivot and connects on the deckle board, the outer wall at the box is connected in the rotation of second band pulley, the diameter of first band pulley is greater than the diameter of second band pulley.

Preferably, the one end fixedly connected with carousel in the deckle board is arranged in to first pivot, the first piece that dials of outer wall fixedly connected with of carousel, two montants of bottom fixedly connected with of slide, the outer wall of montant rotates and is connected with and dials piece matched with second and dials piece with first.

Preferably, the vertical rod is provided with a clamping groove, the second toggle block is rotatably connected in the clamping groove through a second rotating shaft, the outer wall of the second rotating shaft is further sleeved with a torsional spring, and two ends of the torsional spring are respectively connected with the inner walls of the second toggle block and the clamping groove.

Preferably, the first air cylinder and the second air cylinder are connected through a connecting pipe, the outer wall of the box body is further provided with an exhaust pipe communicated with the second air cylinder, and the exhaust pipe and the connecting pipe are both connected with a one-way valve.

Preferably, the bottom of box is connected with the base, be connected with the auxiliary rod between framed panel and the workstation, slide sliding connection is on the auxiliary rod.

Compared with the prior art, the invention provides a plastic die cutting device, which has the following beneficial effects:

1. the plastic mold cutting device is used, firstly, a plastic mold to be cut is placed on a workbench, the four top plates can be jacked up by the four top plates, a rotating handle is rotated, a screw rod is rotated, a T-shaped plate is moved, a cutting piece is moved to a position to be used, then a stepping motor is started to drive the cutting piece to rotate, a cylinder is started, the cylinder drives a sliding plate to slide downwards, the cutting piece is driven to move downwards, the sliding plate can drive a pressing block to move downwards while moving downwards, a connecting rod is pressed to move, gear teeth are meshed with gears, a rack plate is driven to ascend, a mandril jacks up the top plates, the plastic mold is jacked up, a gap between the cutting device and the workbench is prevented from entering waste materials and being difficult to clean, a first piston is pushed to move simultaneously, and gas in a first air cylinder is pushed into a second air cylinder, then the waste material enters the communicating pipe through the air outlet pipe and is sprayed out from the air outlet nozzle on the vertical plate, so that the waste material is blown into the blanking groove and is discharged from the rear part of the box body.

2. The plastic die cutting device has the advantages that when the sliding plate moves downwards, the vertical rod can drive the second stirring block to move downwards, the vertical rod is provided with two vertical rods, when the second stirring block on the vertical rod on the left side moves, the first stirring block on the rotary table can be pressed, so that the rotary table rotates, when the second stirring block on the vertical rod on the right side touches the first stirring block, the second stirring block on the vertical rod on the right side rotates, so that both the vertical rods can move conveniently, when the rotary table rotates, the first rotary shaft drives the first belt wheel to rotate, then the belt drives the second belt wheel to rotate, then the second belt wheel is in threaded connection with the threaded rod, so that the threaded rod and the second piston are driven to move, then gas can conveniently enter the second gas cylinder, when the cutting is finished, the sliding plate rises, so that the vertical rod on the right side rises to drive the second stirring block to move, so that the rotary table rotates in the opposite direction, thereby blow off the gas in the second inflator through the outlet duct, then spout through the air nozzle to blow the waste material to the feed chute in, and when the slide up-shifting, roof and ejector pin can be because plastic mold's gravity drives rack plate downstream, thereby blow off the waste material when making plastic mold remove, thereby make the clearance effect better.

The part of the device which is not involved is the same as the prior art or can be realized by the prior art, the invention can conveniently blow off the leftover bits and pieces, avoid the adhering of the leftover bits and pieces at the connecting part of the die and the workbench, is convenient to clean, and ensures the sanitary condition of the working environment and the body health of the operating personnel.

Drawings

Fig. 1 is a schematic three-dimensional structure diagram of a plastic mold cutting device according to the present invention;

FIG. 2 is a schematic three-dimensional structural view of a plastic mold cutting device according to the present invention;

fig. 3 is a three-dimensional structural schematic diagram of a plastic mold cutting device according to the present invention;

FIG. 4 is a front cross-sectional view of a plastic mold cutting apparatus according to the present invention;

FIG. 5 is a sectional view of a case in a cutting apparatus for a plastic mold according to the present invention;

FIG. 6 is a side view of a case of the plastic mold cutting apparatus according to the present invention;

FIG. 7 is a cross-sectional view of a vertical rod of a plastic mold cutting apparatus according to the present invention;

fig. 8 is a schematic structural view of a portion a in fig. 2 of a plastic mold cutting apparatus according to the present invention.

In the figure: 1. a box body; 101. a work table; 102. a base; 103. an auxiliary lever; 104. a top plate; 105. a groove; 106. a first gas cylinder; 107. a second gas cylinder; 108. an air outlet pipe; 109. a discharging groove; 2. a frame plate; 201. a cylinder; 202. a slide plate; 203. a T-shaped plate; 204. cutting the slices; 205. a stepping motor; 206. a long groove; 207. briquetting; 208. a chute; 209. a screw rod; 3. a pressure lever; 301. gear teeth; 302. a gear; 4. a rack plate; 401. a round bar; 402. a first piston; 403. a limiting block; 404. a top rod; 5. a turntable; 501. a first toggle block; 502. a vertical rod; 503. a second toggle block; 504. a first pulley; 505. a second pulley; 506. a belt; 6. a connecting plate; 601. a vertical plate; 602. a communicating pipe; 7. a threaded rod; 701. a second piston; 702. a connecting pipe; 703. a card slot; 704. a torsion spring.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

Example 1:

referring to fig. 1-8, a plastic mold cutting device comprises a box body 1, wherein a workbench 101 is arranged at the top of the box body 1, a frame plate 2 is fixedly connected to the top of the workbench 101, a sliding plate 202 is slidably connected to the frame plate 2, and a cutting blade 204 is slidably connected to the bottom of the sliding plate 202;

a first air cylinder 106 and a second air cylinder 107 are further arranged in the box body 1, a first piston 402 is connected in the first air cylinder 106 in a sliding mode, the top of the first piston 402 is fixedly connected with a top rod 404, the top of the top rod 404 is connected with a top plate 104, and the top plate 104 is connected in the workbench 101;

a second piston 701 is slidably connected in the second air cylinder 107, an air outlet pipe 108 is arranged on the outer wall of the second air cylinder 107, a connecting plate 6 is detachably connected on the side wall of the box body 1, a vertical plate 601 is fixedly connected on the outer wall of the top of the connecting plate 6, an air outlet nozzle is arranged on the vertical plate 601, a communicating pipe 602 communicated with the air outlet pipe 108 is arranged on the outer wall of the connecting plate 6, and corresponding blanking grooves 109 are arranged on the box body 1 and the workbench 101.

When the plastic die cutting machine is used, firstly, a plastic die to be cut is placed on the workbench 101, the four top plates 104 can be jacked up, then the sliding plate 202 can drive the cutting blade 204 to move downwards, then the ejector rod 404 jacks up the top plates 104, so that the plastic die is jacked up, a gap between the plastic die and the workbench 101 during cutting is prevented from entering waste materials and being difficult to clean, meanwhile, the first piston 402 is pushed to move, so that gas in the first air cylinder 106 is pushed into the second air cylinder 107, then the gas enters the communicating pipe 602 through the gas outlet pipe 108, and then the waste materials are ejected from the gas outlet nozzle on the vertical plate 601, so that the waste materials are blown into the blanking groove 109 and then are discharged from the rear side of the box body 1.

Example 2:

The top outer wall fixedly connected with cylinder 201 of framed panel 2, slide 202 is connected at the output of cylinder 201, is equipped with spout 208 in the slide 202, and the spout 208 internal rotation is connected with lead screw 209, and the outer wall threaded connection of lead screw 209 has T template 203, and the outer wall fixedly connected with step motor 205 of T template 203, and the output at step motor 205 is connected to cutting piece 204.

A limiting rod is arranged in the sliding groove 208, the T-shaped plate 203 is connected to the limiting rod in a sliding mode, the outer wall of the screw rod 209 is connected with a rotating handle, a long groove 206 corresponding to the screw rod 209 is arranged on the frame plate 2, the screw rod 209 can conveniently move along with the sliding plate 202 due to the arranged long groove 206, and the T-shaped plate 203 can move more stably due to the limiting rod.

When the cutting device is used, firstly, a plastic mould to be cut is placed on the workbench 101, the four top plates 104 can be jacked up, the rotating handle is rotated, the screw rod 209 is rotated, the T-shaped plate 203 is moved, the cutting blade 204 is moved to a position to be used, then the stepping motor 205 is started to drive the cutting blade 204 to rotate, the air cylinder 201 is started, the air cylinder 201 drives the sliding plate 202 to slide downwards, the cutting blade 204 is driven to move downwards, the sliding plate 202 drives the pressing block 207 to move downwards while moving downwards, the connecting rod 3 is pressed to move, the gear teeth 301 are meshed with the gear 302, the rack plate 4 is driven to ascend, the ejector rod 404 jacks up the top plates 104, the plastic mould is jacked up, a gap between the plastic mould and the workbench 101 during cutting is prevented from entering waste materials, the waste materials are difficult to clean, the first piston 402 is pushed to move, and air in the first air cylinder 106 is pushed into the second air cylinder 107, then, the waste is introduced into the communicating pipe 602 through the outlet pipe 108, and is ejected from the outlet nozzle of the vertical plate 601, so that the waste is blown into the feed chute 109 and is discharged from the rear of the tank 1.

Example 3:

referring to fig. 1 to 8, a plastic mold cutting apparatus, substantially the same as that of embodiment 2, further, a pressing block 207 is fixedly connected to the bottom of the sliding plate 202, a groove 105 is formed in the case 1, a pressing rod 3 is slidably connected to the groove 105, gear teeth 301 are formed at the bottom of the pressing rod 3, three gears 302 engaged with each other are rotatably connected to the inside of the case 1, wherein the gear 302 at one end is engaged with the gear teeth 301, the gear 302 at the other end is engaged with a rack plate 4, the rack plate 4 is connected to the bottom of the first piston 402, and the connecting rod 3 and the rack plate 4 can move in two opposite directions while increasing the engagement length by providing the three gears 302 engaged with each other.

The bottom fixedly connected with round bar 401 of first inflator 106, rack plate 4 sliding connection is on round bar 401, and the outer wall of ejector pin 404 is fixedly connected with stopper 403 still, and it is more steady to make rack plate 4 remove through round bar 401, and stopper 403 then can avoid the distance overlength that ejector pin 404 stretches out to it is more stable to make the plastic mold connect, has strengthened the cutting effect.

Example 4:

referring to fig. 1 to 8, a plastic mold cutting device is substantially the same as that of embodiment 3, further, a threaded rod 7 is fixedly connected to an outer wall of the second piston 701, a second belt wheel 505 is connected to an outer wall of the threaded rod 7 through threads, the second belt wheel 505 is connected to a first belt wheel 504 through a belt 506, the first belt wheel 504 is rotatably connected to the frame plate 2 through a first rotating shaft, the second belt wheel 505 is rotatably connected to an outer wall of the box body 1, and a diameter of the first belt wheel 504 is larger than that of the second belt wheel 505, so that a rotating speed of the second belt wheel 505 is increased, a time for the threaded connection with the threaded rod 7 is longer, a distance for the threaded rod 7 to move is longer, and the use is convenient.

One end fixedly connected with carousel 5 in the framed panel 2 is arranged in to first pivot, the first stirring piece 501 of outer wall fixedly connected with of carousel 5, two montants 502 of the bottom fixedly connected with of slide 202, the outer wall of montant 502 rotates and is connected with the second stirring piece 503 with first stirring piece 501 matched with, the both sides of carousel 5 all are provided with a montant 502, thereby the homoenergetic matches with carousel 5 when making slide 202 rise and descend, thereby make threaded rod 7 can drive second piston 701 reciprocating motion.

The vertical rod 502 is provided with a clamping groove 703, the second shifting block 503 is rotatably connected in the clamping groove 703 through a second rotating shaft, the outer wall of the second rotating shaft is further sleeved with a torsion spring 704, two ends of the torsion spring 704 are respectively connected with the second shifting block 503 and the inner wall of the clamping groove 703, when the front surface of the second shifting block 503 is matched with the first shifting block 501, the second shifting block 503 is abutted against the clamping groove 703 so as to drive the first shifting block 501 to rotate, thereby enabling the rotating disc 5 to rotate, when the other surface of the second shifting block 503 is abutted against the first shifting block 501, the second shifting block 503 can rotate in the clamping groove 703, when the first shifting block 501 is not abutted against the second shifting block 503, the torsion spring 704 can automatically reset the second shifting block 503, thereby facilitating repeated use, so that only the second shifting block 503 on one side of the vertical rod 502 can be matched with the first shifting block 501 all the time, thereby controlling the rotating disc 5 to rotate forwards and backwards, is convenient to use.

The first air cylinder 106 and the second air cylinder 107 are connected through the connecting pipe 702, the outer wall of the box body 1 is further provided with an air exhaust pipe communicated with the second air cylinder 107, the air exhaust pipe and the connecting pipe 702 are connected with one-way valves, after the first piston 402 rises, air can be driven to enter the second air cylinder 107 through the connecting pipe 702, the one-way valves on the connecting pipe 702 can enable the air not to flow back after entering the air, the one-way valves on the air exhaust pipe enable the second piston 701 to move, the air can be conveniently extracted, therefore, the second air cylinder 107 is filled with the air all the time, the two one-way valves enable the air to be discharged from the air outlet pipe 108, and waste materials can be blown through the air outlet nozzle conveniently.

When the sliding plate 202 moves downwards, the vertical rod 502 can drive the second shifting block 503 to move downwards, and the vertical rod 502 is provided with two, when the second shifting block 503 on the vertical rod 502 on the left side moves, the first shifting block 501 on the rotating disc 5 can be pressed, so that the rotating disc 501 rotates, when the second shifting block 503 on the vertical rod 502 on the right side contacts with the first shifting block 501, the second shifting block 503 can rotate, so that the two vertical rods 502 can move conveniently, when the rotating disc 5 rotates, the first rotating shaft drives the first belt wheel 504 to rotate, then the belt 506 drives the second belt wheel 505 to rotate, then the second belt wheel 505 can be in threaded connection with the threaded rod 7, so that the threaded rod 7 and the second piston 701 can be driven to move, then gas can conveniently enter the second gas cylinder 107, when the cutting is finished, the sliding plate 202 rises, so that when the vertical rod 502 on the right side rises, the second shifting block 503 is driven to move, so that the rotating disc 5 rotates in the opposite direction, then the threaded rod 7 pushes the second piston 701 to move, so that the gas in the second gas cylinder 107 is blown out through the gas outlet pipe 108 and then is ejected through the gas nozzle, so that the waste material is blown into the blanking slot 109, and when the sliding plate 202 moves upwards, the rack plate 4 is driven by the top plate 104 and the ejector rod 404 to move downwards due to the gravity of the plastic mold, so that the waste material is blown away while the plastic mold moves, and the cleaning effect is better.

Example 5:

The bottom of box 1 is connected with base 102, is connected with auxiliary rod 103 between framed panel 2 and the workstation 101, and slide 202 sliding connection is on auxiliary rod 103, and base 102 can make box 1 place more stably, and auxiliary rod 103 can make slide 202 conveniently slide, and it is more steady to remove.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims

1. The plastic die cutting device comprises a box body (1), and is characterized in that a workbench (101) is arranged at the top of the box body (1), a frame plate (2) is fixedly connected to the top of the workbench (101), a sliding plate (202) is slidably connected in the frame plate (2), and a cutting blade (204) is slidably connected to the bottom of the sliding plate (202);

a first air cylinder (106) and a second air cylinder (107) are further arranged in the box body (1), a first piston (402) is connected in the first air cylinder (106) in a sliding mode, the top of the first piston (402) is fixedly connected with a top rod (404), the top of the top rod (404) is connected with a top plate (104), and the top plate (104) is connected in the workbench (101);

second piston (701) sliding connection has in second inflator (107), the outer wall of second inflator (107) is equipped with outlet duct (108), the lateral wall of box (1) can be dismantled and be connected with connecting plate (6), the top outer wall fixedly connected with riser (601) of connecting plate (6), be equipped with the gas outlet nozzle on riser (601), the outer wall of connecting plate (6) is equipped with communicating pipe (602) that are linked together with outlet duct (108), be equipped with corresponding lower silo (109) on box (1) and workstation (101).

2. The plastic mold cutting device according to claim 1, characterized in that an air cylinder (201) is fixedly connected to the outer wall of the top of the frame plate (2), the sliding plate (202) is connected to the output end of the air cylinder (201), a sliding groove (208) is formed in the sliding plate (202), a lead screw (209) is rotatably connected in the sliding groove (208), a T-shaped plate (203) is connected to the outer wall of the lead screw (209) in a threaded manner, a stepping motor (205) is fixedly connected to the outer wall of the T-shaped plate (203), and the cutting blade (204) is connected to the output end of the stepping motor (205).

3. The plastic mold cutting device according to claim 2, characterized in that a limiting rod is arranged in the chute (208), the T-shaped plate (203) is connected to the limiting rod in a sliding manner, a rotating handle is connected to the outer wall of the screw rod (209), and a long groove (206) corresponding to the screw rod (209) is arranged on the frame plate (2).

4. The plastic mold cutting device according to claim 3, characterized in that a pressing block (207) is fixedly connected to the bottom of the sliding plate (202), a groove (105) is formed in the box body (1), a pressing rod (3) is slidably connected in the groove (105), gear teeth (301) are formed in the bottom of the pressing rod (3), three gears (302) meshed with each other are rotatably connected in the box body (1), one end of each gear (302) is meshed with the gear teeth (301), a rack plate (4) is meshed with the gear (302) at the other end of each gear, and the rack plate (4) is connected to the bottom of the first piston (402).

5. The plastic mold cutting device according to claim 4, wherein a round bar (401) is fixedly connected to the bottom of the first air cylinder (106), the rack plate (4) is slidably connected to the round bar (401), and a limit block (403) is fixedly connected to the outer wall of the top bar (404).

6. The plastic mold cutting device according to claim 5, characterized in that a threaded rod (7) is fixedly connected to the outer wall of the second piston (701), a second belt wheel (505) is connected to the outer wall of the threaded rod (7) in a threaded manner, the second belt wheel (505) is connected to a first belt wheel (504) through a belt (506), the first belt wheel (504) is rotatably connected to the frame plate (2) through a first rotating shaft, the second belt wheel (505) is rotatably connected to the outer wall of the box body (1), and the diameter of the first belt wheel (504) is larger than that of the second belt wheel (505).

7. The plastic mold cutting device according to claim 6, characterized in that the first rotating shaft is fixedly connected with a rotating disc (5) at one end arranged in the frame plate (2), the outer wall of the rotating disc (5) is fixedly connected with a first shifting block (501), the bottom of the sliding plate (202) is fixedly connected with two vertical rods (502), and the outer wall of the vertical rods (502) is rotatably connected with a second shifting block (503) matched with the first shifting block (501).

8. The plastic mold cutting device according to claim 7, wherein a clamping groove (703) is formed in the vertical rod (502), the second toggle block (503) is rotatably connected in the clamping groove (703) through a second rotating shaft, a torsion spring (704) is further sleeved on the outer wall of the second rotating shaft, and two ends of the torsion spring (704) are respectively connected with the second toggle block (503) and the inner wall of the clamping groove (703).

9. The plastic mold cutting device according to claim 8, wherein the first air cylinder (106) and the second air cylinder (107) are connected through a connecting pipe (702), the outer wall of the box body (1) is further provided with an air suction pipe communicated with the second air cylinder (107), and the air suction pipe and the connecting pipe (702) are both connected with a one-way valve.

10. The plastic mold cutting device according to claim 1, wherein a base (102) is connected to the bottom of the case (1), an auxiliary rod (103) is connected between the frame plate (2) and the worktable (101), and the sliding plate (202) is slidably connected to the auxiliary rod (103).