A cutting device for plastic production

Abstract

This utility model relates to a cutting device for plastic production, characterized in that it includes a guiding component, a guiding pre-tightening component, a limiting component, a cutting component, and a distance fixing component. When the plastic tube passes through the guiding component, it is clamped and conveyed by the guiding pre-tightening component. After passing through the limiting component and below the cutting component, the plastic tube continues to be conveyed towards the distance fixing component according to the required cutting length. The plastic tube passes through the distance fixing channel and is positioned vertically until it reaches the stop block to achieve distance fixing. Then the cutting component cuts the plastic tube. Since most of the length of the plastic tube is located within the distance fixing channel and is limited, it will not lift up during the cutting process, and the cut is complete.

Description

Technical Field

[0001] This utility model belongs to the technical field of plastic cutting equipment, specifically relating to a cutting device for plastic production. Background Technology

[0002] Currently, the cutting of plastic pipes uses a conveyor assembly to move the plastic pipe forward until it reaches below the cutting assembly. The cutter then moves downward to achieve a fixed-distance cut. During cutting, a support is placed below the cutter to hold the plastic pipe. This cutting method has the following problems when performing long-segment fixed-distance cuts: during the cutting process, the extended end is not fixed and limited, causing it to tilt upwards. This may result in a slanted cut, leading to an increased defect rate. In view of this, this solution was developed. Utility Model Content

[0003] In view of the shortcomings of the prior art, the technical problem to be solved by this utility model is to provide a cutting device for plastic production, which can limit the plastic tube extending out of the cutting area and prevent it from curling up during the cutting process.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a cutting device for plastic production, including a guiding component, a guiding pre-tightening component, a limiting component, a cutting component, and a distance fixing component. The guiding component is used to guide and transmit the plastic tube, the guiding pre-tightening component is used to pre-compress and transmit the plastic tube, the limiting component is used to limit the plastic tube, the cutting component is used to cut the plastic tube, and the distance fixing component includes a distance fixing seat and a first telescopic body. A distance fixing channel is formed on the distance fixing seat, and a stop is provided at the output end of the first telescopic body. The first telescopic body drives the stop to block or move away from the opening of the distance fixing channel.

[0005] Furthermore, the spacer includes a first base and a first pressure seat. The upper surface of the first base has a receiving groove that extends through both sides, and the lower surface of the first pressure seat has a circular groove that extends through both sides. The first pressure seat is disposed on the upper surface of the base, and the circular groove and the receiving groove are vertically aligned.

[0006] Furthermore, one side of the first pressure seat is detachably connected to the upper surface of the base via bolts.

[0007] Furthermore, the width of the receiving groove is greater than or equal to the diameter of the circular groove, and the diameter of the circular groove is the same as the outer diameter of the plastic tube.

[0008] Furthermore, the cutting assembly includes a front cutting guide seat, a first gantry frame, a first drive body, and a cutter. A height limiting block is provided on the upper surface of the front cutting guide seat, and a first limiting through hole is formed in the front cutting guide seat, which penetrates the side walls of the front cutting guide seat and the height limiting block.

[0009] The first gantry is located on the side of the front cutting guide seat facing the distance-fixing component. The first drive body is located above the first gantry and its output end passes through the upper surface of the first gantry. The output end of the first drive body is provided with a connecting plate. The horizontal projection of the connecting plate covers the horizontal projection of the height-limiting block. A cutter is connected to one side of the lower surface of the connecting plate.

[0010] Furthermore, the cutting assembly also includes a rear cutting guide seat, which is disposed on the side of the first gantry facing the distance fixing assembly. The rear cutting guide seat has a second limiting through hole, which has the same diameter as the first limiting through hole and corresponds to it front to back.

[0011] Furthermore, the limiting component includes a limiting plate and a second driving body. A first limiting groove is formed on the limiting plate, penetrating both sides of the limiting plate. A pad is provided at the output end of the second driving body. The pad faces the first limiting groove and has a second limiting groove penetrating both sides. The diameter of the first limiting groove and the second limiting groove is equal to the outer diameter of the plastic tube.

[0012] Furthermore, the guide pretensioning assembly includes a lower roller body, an upper roller body, and an adjusting body. The lower roller body and the upper roller body are arranged at intervals. An annular groove is formed on the lower roller body. The adjusting body drives the upper roller body to move closer to or away from the lower roller body.

[0013] Furthermore, the guide pre-tightening assembly also includes four columns arranged in a matrix. A mounting plate is provided at the bottom between the two columns on the side. The two ends of the lower roller are respectively hinged to the two mounting plates. A retaining rail is formed on the inward side of the two columns on the side. A roller connecting seat is provided between the two retaining rails. The roller connecting seat has guide rail grooves on both sides, and the guide rail grooves are adapted to the retaining rails.

[0014] Furthermore, the guiding assembly includes multiple vertical limiting rollers and multiple horizontal limiting rollers. The multiple vertical limiting rollers are arranged alternately from front to back, and the multiple horizontal limiting rollers are arranged alternately from front to back, left to right.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] In this invention, when the plastic tube passes through the guide assembly, it is clamped and conveyed by the guide pre-tightening assembly. After passing through the limiting assembly and below the cutting assembly, the plastic tube continues to be conveyed towards the distance fixing assembly according to the required cutting length. The plastic tube passes through the distance fixing channel and is positioned vertically until it reaches the stop block to achieve distance fixing. Then the cutting assembly cuts the plastic tube. Since most of the length of the plastic tube is located within the distance fixing channel and is limited, it will not lift up during the cutting process, and the cut is complete. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of a cutting device for plastic production according to the present invention;

[0018] Figure 2 This is a three-dimensional structural diagram of the guide component in this utility model;

[0019] Figure 3 This is a three-dimensional structural diagram of the guide pre-tightening component in this utility model;

[0020] Figure 4 This is a three-dimensional structural diagram of the limiting component in this utility model;

[0021] Figure 5 This is a three-dimensional structural diagram of the cutting component in this utility model;

[0022] Figure 6 This is a three-dimensional structural diagram of the distance-fixing component in this utility model.

[0023] The diagram shows the following components: 1. Guide assembly; 11. First base; 12. Vertical plate; 13. Horizontal plate; 14. Vertical limiting roller; 15. Horizontal limiting roller; 2. Guide pre-tightening assembly; 21. Lower roller body; 22. Upper roller body; 221. Roller body connecting seat; 23. Adjustable distance body; 24. Column; 241. Mounting plate; 242. Rail; 3. Limiting assembly; 31. Limiting plate; 32. Second drive body; 321. Pad block; 4. Cutting assembly; 41. Front cutting guide seat; 411. Height limiting block; 42. Rear cutting guide seat; 43. First gantry frame; 44. First drive body; 441. Connecting plate; 45. Cutter; 5. Distance fixing assembly; 51. Distance fixing seat; 511. First base; 512. First pressure seat; 513. Distance fixing channel; 52. First telescopic body; 521. Stop block. Detailed Implementation

[0024] To make the above-mentioned features and advantages of this utility model more apparent and understandable, specific embodiments are described below in conjunction with the accompanying drawings for detailed explanation.

[0025] like Figures 1-6As shown, this embodiment provides a cutting device for plastic production, including a guide assembly 1, a guide pre-tightening assembly 2, a limiting assembly 3, a cutting assembly 4, and a distance fixing assembly 5.

[0026] The guide assembly 1, guide pre-tightening assembly 2, limiting assembly 3, cutting assembly 4, and distance fixing assembly 5 are arranged sequentially from back to front at intervals.

[0027] like Figure 2 As shown, the guide assembly 1 is used to guide and drive the plastic tube. Specifically, the guide assembly 1 includes a first base 11, five vertical limiting rollers 14 and five horizontal limiting rollers 15. A vertical plate 12 and a horizontal plate 13 are formed on the first base 11. The five vertical limiting rollers 14 are arranged alternately from front to back and are rotatably connected to the vertical plate 12. The five horizontal limiting rollers 15 are arranged alternately from front to back and are rotatably connected to the vertical plate 12. Annular grooves are formed on the circumferential surfaces of the vertical limiting rollers 14 and the horizontal limiting rollers 15. The function of the annular grooves is to restrict the upward movement of the plastic tube in the left and right directions.

[0028] The guide pre-tensioning assembly 2 is used to pre-compress and transmit pressure on the plastic tube. Specifically, the guide pre-tensioning assembly 2 includes a lower roller body 21, an upper roller body 22, an adjusting body 23, and four columns 24. The lower roller body 21 and the upper roller body 22 are arranged vertically at intervals. An annular groove is formed on the lower roller body 21. The adjusting body 23 drives the upper roller body 22 to move closer to or away from the lower roller body 21. The four columns 24 are arranged in a matrix. A mounting plate 241 is provided at the bottom between the two columns 24 located on the side. The two ends of the lower roller body 21 are hinged to the two mounting plates 241 respectively. The lower roller body 21 is driven by a motor. The two columns 24 located on the side face... The inner surface has a retaining rail 242, and a roller body connecting seat 221 is provided between the two retaining rails 242. The roller body connecting seat 221 has guide rail grooves on both sides, which are adapted to the retaining rails 242. The upper ends of the two columns 24 located on the side are provided with plates, and threaded holes are formed on the plates. The adjusting body 23 includes a screw, which passes through the threaded hole and extends into the upper surface of the roller body connecting seat 221 and is locked and rotated. The two screws are synchronously driven by the same motor. The synchronous drive is achieved by using the existing synchronous wheel and synchronous chain, or by using dual motors and synchronous encoders for synchronous drive.

[0029] The limiting component 3 is used to limit the plastic tube. The limiting component 3 includes a limiting plate 31 and a second driving body 32. The second driving body 32 is a cylinder, such as a hydraulic cylinder, pneumatic cylinder, or electric cylinder. A first limiting groove is formed on the limiting plate 31, penetrating both sides of the limiting plate 31. A pad 321 is provided at the output end of the second driving body 32, facing the first limiting groove. The pad 321 has a second limiting groove penetrating both sides. The diameter of the first limiting groove and the second limiting groove is equal to the outer diameter of the plastic tube. Depending on the diameter of the plastic tube, the first limiting groove on the limiting plate 31 and the second limiting groove on the pad 321 can be adaptively adjusted. The main reason for setting the limiting component 3 in this solution is that the components are far apart, and a limiting component 3 is needed in the middle to limit the plastic tube and prevent it from sinking.

[0030] The cutting assembly 4 is used to cut plastic tubes. Specifically, the cutting assembly 4 includes a front cutting guide seat 41, a rear cutting guide seat 42, a first gantry frame 43, a first drive body 44, and a cutter 45. The first drive assembly is a cylinder, such as a hydraulic cylinder, a pneumatic cylinder, or an electric cylinder. A height limiting block 411 is provided on the upper surface of the front cutting guide seat 41. The front cutting guide seat 41 has a first limiting through hole, which penetrates the front cutting guide seat 41 and the two side walls of the height limiting block 411. The first gantry frame 43 is located on the side of the front cutting guide seat 41 facing the distance fixing component 5. The first drive body 44 is located above the first gantry frame 43 and its output end passes through the upper surface of the first gantry frame 43. The output end of the first drive body 44 is provided with a connecting plate 441. The horizontal projection of the connecting plate 441 covers the horizontal projection of the height limiting block 411. A cutter 45 is connected to one side of the lower surface of the connecting plate 441. The rear cutting guide seat 42 is located on the side of the first gantry frame 43 facing the distance fixing component 5. The rear cutting guide seat 42 has a second limiting through hole, which has the same diameter as the first limiting through hole and corresponds to it front to back.

[0031] The distance-fixing assembly 5 includes a distance-fixing seat 51 and a first telescopic body 52, which can be a hydraulic cylinder, a pneumatic cylinder, or an electric cylinder. A distance-fixing channel 513 is formed on the distance-fixing seat 51, and a stop block 521 is provided at the output end of the first telescopic body 52. ​​The first telescopic body 52 drives the stop block 521 to block or move away from the opening of the distance-fixing channel 513. The distance-fixing seat 51 includes a first base 511 and a first pressure seat 512. A receiving groove penetrating both sides is formed on the upper surface of the first base 511, and a circular groove penetrating both sides is formed on the lower surface of the first pressure seat 512. The first pressure seat 512 is disposed on the upper surface of the base, and the circular groove and the receiving groove are vertically aligned. One side of the first pressure seat 512 is connected to the upper surface of the base by bolts and screws. The distance between the first pressure seat 512 and the base can be adjusted by setting a pad 321 between the pressure seat and the base.

[0032] Preferably, the width of the receiving groove is greater than or equal to the diameter of the circular groove, and the diameter of the circular groove is the same as the outer diameter of the plastic tube. This solution mainly uses the circular groove on the lower surface of the first pressure seat 512 to limit the vertical direction of the plastic tube. The width of the receiving groove is set to be larger than the diameter of the circular groove so that when adapting to plastic tubes of different diameters, only the first pressure seat 512 needs to be replaced, without replacing the entire assembly.

[0033] Working principle: The plastic tube passes through five vertical limiting rollers 14 and five horizontal limiting rollers 15, then through the upper roller body 22 and the lower roller body 21. The rotation of the lower roller body 21 drives the plastic tube forward, passing through the limiting plate 31 and the pad 321. The second driving body 32 extends, and under manual operation, the plastic tube is positioned within the first and second limiting grooves. The lower roller body 21 continues to rotate, and the plastic tube passes through the first limiting through hole of the front cutting guide seat 41, and then through the second limiting through hole of the rear cutting guide seat 42. At this time, the first telescopic body 52 extends outward, and the plastic tube continues to extend into the fixed distance under the drive of the lower roller body 21. Inside the channel 513, until it reaches the stop block 521, at which point the first drive body 44 of the cutting assembly 4 extends, driving the cutter 45 to move downward until the connecting plate 441 reaches the height limit block 411, and the plastic tube is cut by the cutter 45. Since most of the length of the plastic tube is located within the fixed-distance channel 513 and is limited, it will not lift up during the cutting process, and the cut is complete. Then the first telescopic body 52 retracts, the lower roller 21 continues to move, and the uncut plastic tube enters the fixed-distance channel 513 until the cut plastic tube moves from the output port of the fixed-distance channel 513 and falls downward. The first telescopic body 52 extends, and the above actions are repeated.

[0034] The foregoing has shown and described the basic principles and main features of this invention, as well as its advantages. Those skilled in the art should understand that this invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this invention. Various changes and modifications can be made to this invention without departing from its spirit and scope. All such changes and modifications fall within the scope of this invention as defined by the appended claims and their equivalents.

Claims

1. A cutting device for plastic production, characterized in that: The device includes a guide assembly, a guide pre-tightening assembly, a limiting assembly, a cutting assembly, and a distance fixing assembly. The guide assembly guides and transmits the plastic tube, the guide pre-tightening assembly pre-compresses and transmits the plastic tube, the limiting assembly restricts the plastic tube, the cutting assembly cuts the plastic tube, and the distance fixing assembly includes a distance fixing seat and a first telescopic body. The distance fixing seat has a distance fixing channel, and the output end of the first telescopic body is provided with a stop block. The first telescopic body drives the stop block to block or move away from the opening of the distance fixing channel.

2. The cutting device for plastic production according to claim 1, characterized in that: The fixed-distance seat includes a first base and a first pressure seat. The upper surface of the first base has a receiving groove that extends through both sides, and the lower surface of the first pressure seat has a circular groove that extends through both sides. The first pressure seat is disposed on the upper surface of the base, and the circular groove and the receiving groove are vertically aligned.

3. A cutting device for plastic production according to claim 2, characterized in that: The first pressure seat is detachably connected to the upper surface of the base via bolts.

4. A cutting device for plastic production according to claim 2, characterized in that: The width of the receiving groove is greater than or equal to the diameter of the circular groove, and the diameter of the circular groove is the same as the outer diameter of the plastic tube.

5. A cutting device for plastic production according to claim 1, characterized in that: The cutting assembly includes a front cutting guide seat, a first gantry frame, a first drive body, and a cutter. A height limiting block is provided on the upper surface of the front cutting guide seat, and a first limiting through hole is formed in the front cutting guide seat, which penetrates the side walls of the front cutting guide seat and the height limiting block. The first gantry is located on the side of the front cutting guide seat facing the distance-fixing component. The first drive body is located above the first gantry and its output end passes through the upper surface of the first gantry. The output end of the first drive body is provided with a connecting plate. The horizontal projection of the connecting plate covers the horizontal projection of the height-limiting block. A cutter is connected to one side of the lower surface of the connecting plate.

6. A cutting device for plastic production according to claim 5, characterized in that: The cutting assembly also includes a rear cutting guide seat, which is disposed on the side of the first gantry facing the distance fixing assembly. The rear cutting guide seat has a second limiting through hole, which has the same diameter as the first limiting through hole and corresponds to it front to back.

7. A cutting device for plastic production according to claim 1, characterized in that: The limiting component includes a limiting plate and a second driving body. A first limiting groove is formed on the limiting plate, penetrating both sides of the limiting plate. A pad is provided at the output end of the second driving body, the pad facing the first limiting groove. The pad has a second limiting groove penetrating both sides. The diameter of the first limiting groove and the second limiting groove is equal to the outer diameter of the plastic tube.

8. A cutting device for plastic production according to claim 1, characterized in that: The guide pretensioning assembly includes a lower roller body, an upper roller body, and an adjusting body. The lower roller body and the upper roller body are arranged at intervals. An annular groove is formed on the lower roller body. The adjusting body drives the upper roller body to move closer to or away from the lower roller body.

9. A cutting device for plastic production according to claim 8, characterized in that: The guide pretensioning assembly also includes four columns arranged in a matrix. A mounting plate is provided at the bottom between the two columns on the side. The two ends of the lower roller are respectively hinged to the two mounting plates. A retaining rail is formed on the inward side of the two columns on the side. A roller connecting seat is provided between the two retaining rails. The roller connecting seat has guide rail grooves on both sides, and the guide rail grooves are adapted to the retaining rails.

10. A cutting device for plastic production according to claim 9, characterized in that: The guiding assembly includes multiple vertical limiting rollers and multiple horizontal limiting rollers. The multiple vertical limiting rollers are arranged alternately from front to back, and the multiple horizontal limiting rollers are arranged alternately from front to back, left to right.

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