A thermoplastic molding device

Abstract

The present invention provides a thermoplastic plastic forming device, which mainly relates to the technical field of plastic processing. It includes a frame, on which a first motor is provided. The rotating shaft of the first motor is connected to a lead screw, and the lead screw is rotatably arranged on the frame. Two optical rods are fixedly arranged on the frame, and a moving seat is slidably arranged on the optical rods. The moving seat is in threaded cooperation with the lead screw. A guide rod is slidably arranged on the moving seat. Both ends of a first spring are respectively connected to the guide rod and the end of the first spring is provided with a cavity seat. The cavity seat is slidably arranged on the frame. A telescopic block is slidably arranged in the vertical direction of the cavity seat. Two rollers are rotatably arranged on both sides of the telescopic block, and the rollers roll in an inclined groove block. The inclined groove block is fixedly arranged on the frame; an inclined block is arranged on the moving seat, and the inclined block is used to drive the pressure rod to move downward. The pressure rod is fixedly arranged at the bottom of a long sliding rod. The long sliding rod is slidably arranged on the frame. A pressing plate is arranged at the upper part of the long sliding rod, and a cavity cover is arranged in the middle of the pressing plate. The telescopic block is inserted into the cavity cover to form a mold cavity.

Description

Technical Field

[0001] The present invention mainly relates to the technical field of plastic processing, and particularly relates to a thermoplastic plastic forming device. Background Art

[0002] Thermoforming is a plastic processing method that processes thermoplastic plastic materials into various products. This process includes heating a thermoplastic sheet to a softened state, then using external force to make it adhere closely to the mold surface, and after cooling and shaping, the required product can be obtained. Thermoforming technology has many advantages, such as being able to manufacture products with a large surface area, strong adaptability, wide application range, relatively less equipment investment, and convenient mold manufacturing.

[0003] In the prior art, the mold ejection link of plastic forming equipment is particularly important. Currently, the common mold ejection method is to eject by ejector pins and then pick up by hand. However, this method not only has safety hazards but also low efficiency.

[0004] Summary of the Invention

[0005] The technical problem to be solved by the present invention is to overcome the above-mentioned disadvantages of the prior art and provide a thermoplastic plastic forming device.

[0006] The technical solution adopted to solve the above technical problem is: A thermoplastic plastic forming device includes a frame. A first motor is provided on the frame. The rotating shaft of the first motor is connected to a lead screw, and the lead screw is rotatably provided on the frame. Two optical rods are fixedly provided on the frame. A moving seat is slidably provided on the optical rods, and the moving seat forms a threaded fit with the lead screw. A guide rod is slidably provided on the moving seat. Both ends of a first spring are respectively connected to the guide rod and the connection. The end of the first spring is provided with a cavity seat. The cavity seat is slidably provided on the frame. A telescopic block is slidably provided in the vertical direction of the cavity seat. Rollers are rotatably provided on both sides of the telescopic block. The rollers roll in an inclined groove block. The inclined groove block is fixedly provided on the frame; An inclined block is provided on the moving seat. The inclined block is used to drive a pressure rod to move downward. The pressure rod is fixedly provided at the bottom of a long sliding rod. The long sliding rod is slidably provided on the frame. A pressing plate is provided at the upper part of the long sliding rod. A cavity cover is provided in the middle of the pressing plate. The telescopic block is inserted into the cavity cover to form a mold cavity.

[0007] Further, sliding rods are provided at the four corners of the pressing plate. The sliding rods are slidably provided on the frame. A second spring passes through the sliding rods. Both ends of the second spring are respectively connected to the frame and the pressing plate.

[0008] Further, a pillar is provided on the upper part of the pressing plate. A motor plate is fixedly provided on the pillar. A second motor is fixedly provided on the motor plate. A feeding spiral blade is provided on the rotating shaft of the second motor. The feeding spiral blade is rotatably arranged in a feeding cylinder. The feeding cylinder is fixedly arranged below the motor plate. The lower end of the feeding cylinder is a conical outlet. The conical outlet of the feeding cylinder is connected to the middle inlet of the cavity cover. The side surface of the feeding cylinder is connected to the outlet of the feeding hopper.

[0009] Further, a heating coil is provided on the outer side of the feeding cylinder.

[0010] Further, side columns are provided on both sides of the moving seat. The side columns form a sliding fit with one side of the lever groove plate. The middle of the lever groove plate is rotatably arranged on the frame. The other end of the lever groove plate forms a sliding fit with the transfer block. The two transfer blocks are slidably arranged on the frame.

[0011] Further, a clamping and moving rod is slidably arranged on the transfer block. A clamping block is provided at one end of the clamping and moving rod. The clamping block is used to clamp the plastic finished product. The two ends of the third spring are respectively connected to the transfer block and the clamping block. A convex platform is provided at the other end of the clamping and moving rod. A plug rod is slidably arranged on the transfer block. The two ends of the fourth spring are respectively connected to the transfer block and the plug block. The plug block is fixedly arranged at the end of the plug rod. The plug block is used to block the convex platform. And a first ejector rod is provided on the frame. The first ejector rod is used to block the movement of the plug block.

[0012] Further, an unlocking block is provided in the middle of the clamping and moving rod. And a second ejector rod is provided on the frame. The second ejector rod is used to drive the unlocking block to move.

[0013] Further, a blanking plate is provided on the frame. The blanking plate is used for transporting the plastic finished product.

[0014] The beneficial effects of the present invention compared with the prior art are as follows: (1) In the original state of the present invention, the pressing plate and the cavity cover are in the lower position. The cavity cover contacts the cavity seat. The telescopic block extending out of the cavity seat is inserted into the cavity cover. Therefore, the cavity seat, the telescopic block and the cavity cover automatically form a mold cavity; (2) When the moving seat of the present invention slides on the optical rod in the direction away from the first motor, the telescopic block moves downward in the cavity seat. The telescopic block contracts into the cavity seat, and automatic demolding is performed. At the same time, the first ejector rod presses against the plug block, so that the plug block is separated from the convex platform. The third spring provides a driving force, so that the two clamping blocks automatically clamp the plastic finished product; (3) When the moving seat of the present invention slides on the optical rod in the direction of the first motor, the second ejector rod contacts the unlocking block. The second ejector rod drives the unlocking block to move in the direction away from the plastic finished product, so that the two clamping blocks are separated from the plastic finished product. The clamping blocks fall into the blanking plate. And the fourth spring provides a driving force to drive the plug block to insert into the convex platform 32, so that the plug block automatically blocks the convex platform. Description of the Drawings

[0015] Figure 1 It is a schematic structural diagram of the whole front of the present invention.

[0016] Figure 2 It is a schematic cross-sectional structure diagram of the present invention.

[0017] Figure 3 It is a schematic installation structure diagram of the lead screw and the moving seat of the present invention.

[0018] Figure 4 It is a schematic installation structure diagram of the moving seat of the present invention.

[0019] Figure 5 It is a schematic structure diagram of the cavity seat and the telescopic block of the present invention.

[0020] Figure 6 It is a schematic installation structure diagram of the pressing plate and the cavity cover of the present invention.

[0021] Figure 7 It is a schematic installation structure diagram of the heating coil of the present invention.

[0022] Figure 8 It is a schematic installation structure diagram of the feeding spiral blade of the present invention.

[0023] Figure 9 It is a schematic installation structure diagram of the clamping block of the present invention.

[0024] Figure 10 is Figure 9 The partial enlarged view at position A in

[0025] Reference numerals in the attached drawings: 1-frame; 2-motor 1; 3-lead screw; 4-smooth rod; 5-moving seat; 501-inclined block; 6-guide rod; 7-spring 1; 8-cavity seat; 9-telescopic block; 10-roller; 11-inclined groove block; 12-pressure rod; 13-long sliding rod; 14-pressing plate; 15-cavity cover; 16-sliding rod; 17-spring 2; 18-strut; 19-motor plate; 20-motor 2; 21-feeding spiral blade; 22-feeding cylinder; 23-feeding hopper; 24-heating coil; 25-plastic finished product; 26-side column; 27-lever groove plate; 28-transfer block; 29-clamping transfer rod; 30-clamping block; 31-spring 3; 32-boss; 33-insert rod; 34-spring 4; 35-insert block; 36-ejector rod 1; 37-unlocking block; 38-ejector rod 2; 39-discharging plate. Detailed implementation manners

[0026] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0027] Such as Figures 1 to 10As shown in the figure, a thermoplastic plastic forming device includes a frame 1. A first motor 2 is provided on the frame 1. The rotating shaft of the first motor 2 is connected to a lead screw 3, and the lead screw 3 is rotatably arranged on the frame 1. Two optical rods 4 are fixedly arranged on the frame 1. A moving seat 5 is slidably arranged on the optical rods 4, and the moving seat 5 is in threaded cooperation with the lead screw 3. A guide rod 6 is slidably arranged on the moving seat 5. Both ends of a first spring 7 are respectively connected to the guide rod 6. The end of the first spring 7 is provided with a cavity seat 8. The cavity seat 8 is slidably arranged on the frame 1. A telescopic block 9 is slidably arranged in the vertical direction of the cavity seat 8. Two rollers 10 are rotatably arranged on both sides of the telescopic block 9. The rollers 10 roll in an inclined groove block 11. The inclined groove block 11 is fixedly arranged on the frame 1.

[0028] Wherein, one end of the inclined groove block 11 close to the first motor 2 is higher than the other end.

[0029] Specifically, the first motor 2 drives the lead screw 3 to rotate. The lead screw 3 drives the moving seat 5 to slide on the optical rods 4. Power is transmitted through the guide rod 6 and the first spring 7, driving the cavity seat 8 to perform a linear motion on the frame 1. The cavity seat 8 drives the telescopic block 9 to perform a linear motion synchronously. At the same time, since the rollers 10 roll on the inclined groove block 11, the telescopic block 9 moves upward in the cavity seat 8, and the telescopic block 9 extends to the top of the cavity seat 8.

[0030] An inclined block 501 is provided on the moving seat 5. The inclined block 501 is used to drive a pressure rod 12 to move downward. The pressure rod 12 is fixedly arranged at the bottom of a long sliding rod 13. The long sliding rod 13 is slidably arranged on the frame 1. A pressing plate 14 is provided at the upper part of the long sliding rod 13. A cavity cover 15 is provided in the middle of the pressing plate 14. The telescopic block 9 is inserted into the cavity cover 15 to form a mold cavity.

[0031] Four corner parts of the pressing plate 14 are provided with sliding rods 16. The sliding rods 16 are slidably arranged on the frame 1. A second spring 17 passes through the sliding rods 16. Both ends of the second spring 17 are respectively connected to the frame 1 and the pressing plate 14.

[0032] Specifically, when the rollers 10 roll to the end of the inclined groove block 11, since the inclined groove block 11 blocks the movement of the rollers 10, the rollers 10 no longer move. At this time, the first motor 2 continues to rotate, the moving seat 5 continues to perform a translational motion, the guide rod 6 slides on the moving seat 5, the first spring 7 is compressed, the inclined block 501 on the moving seat 5 contacts the pressure rod 12, and the inclined block 501 drives the pressure rod 12 and the long sliding rod 13 to move downward. Therefore, the pressing plate 14 and the cavity cover 15 also move downward synchronously. The second spring 17 is compressed. The cavity cover 15 contacts the cavity seat 8, and the telescopic block 9 extending from the cavity seat 8 is inserted into the cavity cover 15. Therefore, the cavity seat 8, the telescopic block 9 and the cavity cover 15 form a mold cavity.

[0033] Above the pressing plate 14, there is a support column 18. A motor plate 19 is fixedly arranged on the support column 18. A second motor 20 is fixedly arranged on the motor plate 19. A feeding spiral blade 21 is arranged on the rotating shaft of the second motor 20. The feeding spiral blade 21 rotates in a feeding cylinder 22. The feeding cylinder 22 is fixedly arranged below the motor plate 19. The lower end of the feeding cylinder 22 is a conical outlet. The conical outlet of the feeding cylinder 22 is connected to the middle inlet of the cavity cover 15. The side of the feeding cylinder 22 is connected to the outlet of the feeding hopper 23.

[0034] A heating coil 24 is arranged on the outer side of the feeding cylinder 22.

[0035] Specifically, raw materials are put into the feeding hopper 23. The raw materials enter the feeding cylinder 22 from the feeding hopper 23. The second motor 20 provides power to drive the feeding spiral blade 21 to rotate. The heating coil 24 heats and melts the raw materials. The feeding spiral blade 21 extrudes the raw materials in the feeding cylinder 22 from its conical outlet, and the raw materials enter the cavity cover 15. Therefore, the raw materials are extruded into the mold cavity for molding.

[0036] On both sides of the moving seat 5, there are side columns 26. The side columns 26 form a sliding fit with one side of the lever groove plate 27. The middle of the lever groove plate 27 rotates on the frame 1. The other end of the lever groove plate 27 forms a sliding fit with the transfer block 28. The two transfer blocks 28 slide on the frame 1.

[0037] A clamping and moving rod 29 slides on the transfer block 28. One end of the clamping and moving rod 29 is provided with a clamping block 30. The clamping block 30 is used to clamp the plastic product 25. The two ends of the third spring 31 are respectively connected to the transfer block 28 and the clamping block 30. The other end of the clamping and moving rod 29 is provided with a boss 32. An insertion rod 33 slides on the transfer block 28. The two ends of the fourth spring 34 are respectively connected to the transfer block 28 and the insertion block 35. The insertion block 35 is fixedly arranged at the end of the insertion rod 33. The insertion block 35 is used to block the boss 32. And a first ejector rod 36 is arranged on the frame 1. The first ejector rod 36 is used to block the movement of the insertion block 35.

[0038] An unlocking block 37 is arranged in the middle of the clamping and moving rod 29. And a second ejector rod 38 is arranged on the frame 1. The second ejector rod 38 is used to drive the unlocking block 37 to move.

[0039] A blanking plate 39 is arranged on the frame 1. The blanking plate 39 is used for transporting the plastic product 25.

[0040] Specifically, when the moving seat 5 moves towards the direction of the first motor 2, power is transmitted through the lever groove plate 27, driving the transfer block 28 to move in the opposite direction. The third spring 31 provides a driving force, causing the two clamping rods 29 and the clamping blocks 30 to move towards the plastic finished product 25. The two clamping blocks 30 clamp the plastic finished product 25. The transfer block 28 transports the plastic finished product 25 above the blanking plate 39. The second ejector rod 38 contacts the unlocking block 37, and the second ejector rod 38 drives the unlocking block 37 to move away from the plastic finished product 25, separating the two clamping blocks 30 from the plastic finished product 25. The clamping blocks 30 fall into the blanking plate 39, and the fourth spring 34 provides a driving force, driving the insertion block 35 to insert into the boss 32, causing the insertion block 35 to lock the boss 32. When the moving seat 5 moves away from the direction of the first motor 2, power is transmitted through the lever groove plate 27 again. The transfer block 28 moves towards the first ejector rod 36, and the first ejector rod 36 presses against the insertion block 35, causing the insertion block 35 to disengage from the boss 32. The fourth spring 34 is compressed, and the third spring 31 provides a driving force, causing the two clamping blocks 30 to clamp the plastic finished product 25.

[0041] Working principle: In the original state, the moving seat 5 is in a position close to the first motor 2. The first spring 7 is in a compressed state. The roller 10 is at the upper end of the inclined groove block 11. The telescopic block 9 is in the upper position in the cavity seat 8, that is, the telescopic block 9 extends out of the top of the cavity seat 8. The inclined block 501 on the moving seat 5 contacts the pressure lever 12, and the inclined block 501 causes the pressure lever 12 and the long sliding rod 13 to be in the lower position. Therefore, the pressing plate 14 and the cavity cover 15 are also in the lower position. The second spring 17 is compressed, and the cavity cover 15 contacts the cavity seat 8. The telescopic block 9 extending out of the cavity seat 8 inserts into the cavity cover 15. Therefore, the cavity seat 8, the telescopic block 9, and the cavity cover 15 form a mold cavity. The second ejector rod 38 contacts the unlocking block 37, and the second ejector rod 38 drives the unlocking block 37 to move away from the plastic finished product 25. The fourth spring 34 provides a driving force, driving the insertion block 35 to insert into the boss 32, causing the insertion block 35 to lock the boss 32.

[0042] Put the raw materials into the feeding hopper 23. The raw materials enter the feeding cylinder 22 from the feeding hopper 23. The second motor 20 provides power to drive the feeding spiral blade 21 to rotate. The heating coil 24 heats and melts the raw materials. The feeding spiral blade 21 extrudes the raw materials in the feeding cylinder 22 from its conical outlet, and the raw materials enter the cavity cover 15. Therefore, the raw materials are extruded into the mold cavity for molding, and the second motor 20 stops moving.

[0043] Start motor 1 2, and motor 1 2 drives the lead screw 3 to rotate, driving the moving seat 5 to slide on the optical rod 4 in the direction away from motor 1 2. The first spring 7 elongates, and the moving seat 5 moves on the guide rod 6. Therefore, the moving seat 5 contacts the end of the guide rod 6. During this process, the inclined block 501 separates from the pressure rod 12, and the second spring 17 provides a driving force to make the pressing plate 14 bounce up, and the cavity cover 15 separates from the plastic product 25. The moving seat 5 continues to move in the direction away from motor 1 2. The moving seat 5 pulls the guide rod 6 and the cavity seat 8 to move synchronously. The roller 10 rolls in the inclined groove block 11, and the telescopic block 9 moves downward in the cavity seat 8. The telescopic block 9 contracts into the cavity seat 8. At the same time, power is transmitted through the lever groove plate 27, and the transfer block 28 moves towards the first ejector rod 36. Finally, the first ejector rod 36 presses against the insert block 35, causing the insert block 35 to disengage from the boss 32. The fourth spring 34 is compressed, and the third spring 31 provides a driving force to make the two clamping blocks 30 clamp the plastic product 25.

[0044] Start motor 1 2 in reverse, driving the moving seat 5 to slide on the optical rod 4 in the direction of motor 1 2. Power is transmitted through the guide rod 6 and the first spring 7, driving the cavity seat 8 to perform a linear motion on the frame 1. The cavity seat 8 drives the telescopic block 9 to perform a linear motion synchronously. At the same time, since the roller 10 rolls on the inclined groove block 11, the telescopic block 9 moves upward in the cavity seat 8, and the telescopic block 9 extends to the top of the cavity seat 8. When the roller 10 rolls to the end of the inclined groove block 11, due to the inclined groove block 11 blocking the movement of the roller 10, the roller 10 stops moving. At this time, motor 1 2 continues to rotate, and the moving seat 5 continues to perform a translational motion. The guide rod 6 slides on the moving seat 5, and the first spring 7 is compressed and returns to its original state. During this process, power is transmitted through the lever groove plate 27, driving the transfer block 28 to move towards the blanking plate 39. The two clamping blocks 30 clamp the plastic product 25, and the clamping blocks 30 transport the plastic product 25 above the blanking plate 39. The second ejector rod 38 contacts the unlocking block 37, and the second ejector rod 38 drives the unlocking block 37 to move away from the plastic product 25, causing the two clamping blocks 30 to separate from the plastic product 25. The clamping blocks 30 fall into the blanking plate 39, and the fourth spring 34 provides a driving force to drive the insert block 35 to insert into the boss 32, causing the insert block 35 to lock the boss 32, so it returns to its original state.

[0045] Repeat the above process for batch plastic molding.

[0046] The above is only a preferred embodiment of the present invention and is not intended to limit the protection scope of the present invention.

Claims

1. A thermoplastic plastic molding device, comprising a frame (1), characterized in that: A motor (2) is provided on the frame (1), the rotating shaft of the motor (2) is connected to the screw (3), and the screw (3) is rotatably arranged on the frame (1), two light rods (4) are fixedly arranged on the frame (1), a moving seat (5) is slidably provided on the light rod (4), and the moving seat (5) and the screw (3) form a threaded fit, a guide rod (6) is slidably provided on the moving seat (5), two ends of a spring (7) are respectively connected to the guide rod (6), a cavity seat (8) is provided at the end of the spring (7), the cavity seat (8) is slidably arranged on the frame (1), a telescopic block (9) is slidably provided on the cavity seat (8), rollers (10) are rotatably provided on both sides of the telescopic block (9), the rollers (10) roll in the inclined slot block (11), and the inclined slot block (11) is fixedly arranged on the frame (1); The shift seat (5) is provided with an inclined block (501), and the inclined block (501) is used to drive the pressure rod (12) to move downward. The pressure rod (12) is fixed at the bottom of the long slide rod (13), and the long slide rod (13) is slidably arranged on the frame (1). A pressure plate (14) is provided on the upper part of the long slide rod (13), and a cavity cover (15) is provided in the middle part of the pressure plate (14). The telescopic block (9) is inserted into the cavity cover (15) to form a mold cavity.

2. A thermoplastic molding device according to claim 1, characterized in that: The four corners of the pressure plate (14) are provided with sliding rods (16), the sliding rods (16) are slidably arranged on the frame (1), the second spring (17) passes through the sliding rod (16), and the two ends of the second spring (17) are respectively connected to the frame (1) and the pressure plate (14).

3. A thermoplastic molding device according to claim 2, characterized in that: The pressure plate (14) is provided with a support (18) on the upper part, a motor plate (19) is fixedly provided on the support (18), a motor 2 (20) is fixedly provided on the motor plate (19), a feeding spiral blade (21) is provided on the rotating shaft of the motor 2 (20), and the feeding spiral blade (21) is rotatably arranged in a feeding barrel (22), the feeding barrel (22) is fixedly arranged below the motor plate (19), the lower end of the feeding barrel (22) is a conical outlet, the conical outlet of the feeding barrel (22) is connected to the middle inlet of the cavity cover (15), and the side of the feeding barrel (22) is connected to the outlet of the feed hopper (23).

4. A thermoplastic molding device according to claim 3, characterized in that: A heating ring (24) is provided on the outer side of the feeding cylinder (22).

5. A thermoplastic molding device according to claim 4, characterized in that: Side columns (26) are provided on both sides of the transfer seat (5), and the side columns (26) form a sliding fit with one side of the lever slot plate (27). The middle part of the lever slot plate (27) is rotatably arranged on the frame (1), and the other end of the lever slot plate (27) forms a sliding fit with the transfer block (28). The two transfer blocks (28) are slidably arranged on the frame (1).

6. A thermoplastic molding device according to claim 5, characterized in that: The transfer block (28) is slidably provided with a clamping rod (29), one end of which is provided with a clamping block (30), which is used to clamp the finished plastic product (25), the two ends of a spring three (31) are respectively connected to the transfer block (28) and the clamping block (30), the other end of the clamping rod (29) is provided with a boss (32), the transfer block (28) is slidably provided with an insertion rod (33), the two ends of a spring four (34) are respectively connected to the transfer block (28) and the insertion block (35), the insertion block (35) is fixedly arranged at the end of the insertion rod (33), the insertion block (35) is used to clamp the boss (32), and the frame (1) is provided with a push rod one (36), which is used to prevent the insertion block (35) from moving.

7. The thermoplastic molding device according to claim 6, characterized in that: An unlocking block (37) is provided in the middle of the clamping and moving rod (29), and a second push rod (38) is provided on the frame (1), and the second push rod (38) is used to drive the unlocking block (37) to move.

8. The thermoplastic molding device according to claim 7, characterized in that: The frame (1) is provided with a material removal plate (39), and the material removal plate (39) is used to transport the finished plastic product (25).

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