A grinding device for producing plastic pipes

Abstract

This utility model belongs to the field of plastic processing technology, specifically a grinding device for producing plastic pipes. It includes a grinding device body, a grinding chamber fixedly installed on the top of the grinding device body, a chamber door on the top of the grinding chamber, a sieve plate inside the grinding device body, springs fixedly installed at both ends of one side of the sieve plate, and elliptical rotating blocks tightly attached to both ends of the other side of the sieve plate. A fixing plate is fixedly installed on the outside of one end of each of the springs. The rotation of one of the support shafts drives the rotation of a second external tooth rotating block and a first external tooth rotating block connected to one end of the shaft, ultimately driving the rotating rod and the multiple elliptical rotating blocks fixedly installed on its outside to rotate. The continuous rotation of the elliptical rotating blocks presses one end of the sieve plate back and forth, causing it to move backward. When the sieve plate moves backward, it is reset by the multiple springs fixedly installed on its side, ultimately achieving a reciprocating back-and-forth movement effect.

Description

Technical Field

[0001] This utility model belongs to the field of plastic processing technology, specifically a grinding device for producing plastic pipes. Background Technology

[0002] During the production of plastic products, plastic granules or block raw materials may not meet the size or shape requirements of production. Grinding equipment can grind them into uniform fine powder, which is beneficial to subsequent production processes. For example, during injection molding, powdered raw materials can fill the mold more evenly, ensuring the uniformity of the quality and performance of plastic products.

[0003] The principle of grinding equipment for producing plastic pipes mainly involves two aspects: mechanical grinding and physical conveying. By applying precise mechanical grinding and physical conveying principles, grinding equipment for producing plastic pipes can efficiently produce powdered materials that meet the requirements, providing strong support for subsequent plastic pipe production.

[0004] Existing grinding equipment for producing plastic pipes mostly filters larger powdery materials through filter plates when grinding substandard pipes. Since the filter plates are fixed, larger impurities can get stuck in the sieve holes, forming blind hole areas and causing a sharp reduction in the effective area of ​​the sieve. Therefore, a grinding equipment for producing plastic pipes is proposed to address the above problems. Utility Model Content

[0005] To overcome the shortcomings of existing technologies, most existing grinding devices for producing plastic pipes filter larger powdery materials through filter plates when grinding substandard pipes. Since the filter plates are fixed, larger impurities can get stuck in the sieve holes, forming blind hole areas and causing a sharp reduction in the effective area of ​​the sieve. This utility model proposes a grinding device for producing plastic pipes.

[0006] The technical solution adopted by this utility model to solve its technical problem is a grinding device for producing plastic pipes, including a grinding device body. A grinding chamber is fixedly installed on the top of the grinding device body, and a chamber door is opened on the top of the grinding chamber. A sieve plate is provided inside the grinding device body. Springs are fixedly installed at both ends of one side of the sieve plate, and elliptical rotating blocks are tightly attached to both ends of the other side of the sieve plate. Fixing plates are fixedly installed on the outside of one end of each of the springs. The outside of the fixing plates is fixedly installed on one side of the inner wall of the grinding device body. A rotating rod is fixedly installed inside each of the elliptical rotating blocks. One end of the rotating rod is rotatably installed on one side of the inner wall of the grinding device body, and the other end of the rotating rod passes through the inside of the grinding device body and is fixedly installed with a first outer... The grinding device has a toothed rotating block. An internal toothed synchronous belt is externally meshed with the first external toothed rotating block. A second external toothed rotating block is internally meshed with the end of the internal toothed synchronous belt away from the first external toothed rotating block. Support shafts are rotatably installed on both sides of the inner wall of the grinding device body. One end of one support shaft passes through the interior of the grinding device body and is fixedly installed inside the second external toothed rotating block. The rotation of one support shaft drives the second external toothed rotating block and the first external toothed rotating block connected to it to rotate. Finally, it drives the rotating rod and multiple elliptical rotating blocks fixedly installed on its exterior to rotate. The continuous rotation of the elliptical rotating blocks squeezes one end of the screening plate back and forth, causing it to move backward. When the screening plate moves backward, it is reset by multiple springs fixedly installed on its side, ultimately achieving the effect of reciprocating back and forth movement.

[0007] Preferably, the grinding device body has multiple grinding rollers inside, and the interior of each grinding roller is fixedly installed on the outside of a support shaft. A drive motor is provided on one side of the grinding device body, and a support plate is fixedly installed at the bottom of the drive motor. The outer side of the support plate is fixedly installed on the side of the grinding device body. A drive gear is fixedly installed at the output end of the drive motor, and a driven gear is meshed with the outside of the drive gear. One end of each support shaft passes through the interior of the grinding device body and is fixedly installed inside the drive gear and the driven gear, respectively. The drive motor drives the drive gear to rotate, which in turn drives the driven gear to rotate. The rotation of the drive gear and the driven gear drives the multiple grinding rollers to rotate, thereby achieving the effect of secondary grinding of the ground powder material.

[0008] Preferably, the inner wall of the grinding device body is provided with grooves on both sides, and connecting rods are fixedly installed inside both ends of the screening plate. The two ends of the multiple connecting rods are respectively slidably installed inside the grooves opened inside the grinding device body. The sliding installation of the connecting rods inside the grooves achieves the effect of limiting the movement trajectory of the screening plate when it moves back and forth.

[0009] Preferably, a collection box is provided at the bottom of the inner wall of the grinding device body, and the collection box is located at the bottom of the screening plate. The outside of the collection box is slidably installed inside the grinding device body, and the filtered powdery material is collected through the collection box.

[0010] Preferably, the grinding chamber and the drive motor are electrically connected to an external control center, which is used to start and stop them. The control center can quickly start and stop the drive motor to achieve a more convenient use of the drive motor.

[0011] Preferably, guide plates are fixedly installed on both sides of the discharge port of the grinding chamber, and multiple guide plates are distributed in an inclined manner between multiple grinding rollers, so that the ground powder material is guided between multiple grinding rollers through multiple guide plates.

[0012] The advantages of this utility model are:

[0013] This invention addresses the problem of existing grinding devices used in plastic pipe production. When grinding defective pipes, a grinding device rotates, driving a second and first external toothed rotating block connected to one end of the supporting shaft. This rotation, in turn, drives a rotating rod and multiple externally fixed elliptical rotating blocks. The continuous rotation of these elliptical rotating blocks presses against one end of a screening plate, causing it to move backward. As the screening plate moves backward, multiple springs fixed to its side reset it, achieving a reciprocating back-and-forth movement. This solves the problem that existing grinding devices for plastic pipe production often filter larger powdery materials through a fixed filter plate, leading to larger impurities getting stuck in the screen holes and creating blind areas, thus drastically reducing the effective screen area. By using a reciprocating screening plate, the device achieves a shaking and screening effect, preventing powdery material from accumulating and getting stuck in the screen holes, thereby improving screening efficiency. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 A schematic diagram of the external structure of a grinding device for producing plastic pipes;

[0016] Figure 2 A schematic diagram of the external structure of a grinding device for producing plastic pipes;

[0017] Figure 3This is a schematic diagram of the internal structure of the screening mechanism;

[0018] Figure 4 This is a schematic diagram of the internal structure of the compaction mechanism;

[0019] Figure 5 This is a schematic diagram of the external structure of the drainage plate;

[0020] In the diagram: 1. Main body of the grinding device; 2. Grinding hopper; 3. Hopper door; 4. Screening plate; 5. Spring; 6. Fixing plate; 7. Elliptical rotating block; 8. Rotating rod; 9. First external tooth rotating block; 10. Slide groove; 11. Connecting rod; 12. Drive motor; 13. Driving gear; 14. Driven gear; 15. Support shaft; 16. Compressing roller; 17. Second external tooth rotating block; 18. Internal tooth synchronous belt; 19. Support plate; 20. Collection box; 21. Guide plate. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0022] Please see Figure 1-5As shown, a grinding device for producing plastic pipes includes a grinding device body 1. A grinding chamber 2 is fixedly installed on the top of the grinding device body 1, and a chamber door 3 is opened on the top of the grinding chamber 2. A sieve plate 4 is provided inside the grinding device body 1. Springs 5 ​​are fixedly installed at both ends of one side of the sieve plate 4, and elliptical rotating blocks 7 are tightly attached to both ends of the other side of the sieve plate 4. Fixing plates 6 are fixedly installed on the outside of one end of each of the multiple springs 5. The outside of the fixing plates 6 is fixedly installed on one side of the inner wall of the grinding device body 1. Rotating rods 8 are fixedly installed inside the multiple elliptical rotating blocks 7. One end of the rotating rod 8 is rotatably installed on one side of the inner wall of the grinding device body 1, and the other end of the rotating rod 8 passes through the inside of the grinding device body 1 and is fixedly installed with a first external tooth rotating block 9. An internal tooth synchronous belt 18 is meshed with the outside of the first external tooth rotating block 9. A second external tooth rotating block 17 is meshed with the end of the internal tooth synchronous belt 18 away from the first external tooth rotating block 9. Supports are rotatably installed on both sides of the inner wall of the grinding device body 1. The support shaft 15, one end of which passes through the interior of the grinding device body 1 and is fixedly installed inside the second external toothed rotating block 17, is used in the existing grinding device for producing plastic pipes. When filtering larger powdery materials through a filter plate, the filter plate is fixed, which causes larger impurities to get stuck in the sieve holes, forming blind hole areas and resulting in a sharp reduction in the effective area of ​​the sieve. In order to improve the filtration effect, the rotation of one of the support shafts 15 will drive the second external toothed rotating block 17 connected to one end to rotate. When the second external toothed rotating block 17 rotates, it drives the first external toothed rotating block 9 to rotate through the internal toothed synchronous belt 18. When the first external toothed rotating block 9 rotates, it drives the rotating rod 8 and multiple elliptical rotating blocks 7 fixedly installed on its exterior to rotate. The elliptical rotating blocks 7 continuously rotate and press one end of the screening plate 4 back and forth, causing it to move backward. When the screening plate 4 moves backward, it is reset by multiple springs 5 ​​fixedly installed on its side, ultimately achieving the effect of reciprocating back and forth movement.

[0023] The grinding device body 1 has multiple grinding rollers 16 inside, and each grinding roller 16 is fixedly installed on the outside of a support shaft 15. A drive motor 12 is located on one side of the outside of the grinding device body 1, and a support plate 19 is fixedly installed on the bottom of the drive motor 12. The outer side of the support plate 19 is fixedly installed on the side of the grinding device body 1. A drive gear 13 is fixedly installed at the output end of the drive motor 12, and a driven gear 14 is meshed on the outside of the drive gear 13. One end of each support shaft 15 passes through the inside of the grinding device body 1 and is fixedly installed on the drive gear 13 and the driven gear 14 respectively. Inside wheel 14; During operation, existing grinding devices for producing plastic pipes filter larger powdery materials through a filter plate. Because the filter plate is fixed, larger impurities can get stuck in the sieve holes, forming blind hole areas and causing a sharp reduction in the effective area of ​​the sieve. In order to improve the filtration effect, this device drives the drive motor 12 to rotate the drive gear 13, which in turn drives the driven gear 14 to rotate. The rotation of the drive gear 13 and the driven gear 14 drives multiple grinding rollers 16 to rotate, achieving the effect of secondary grinding of the ground powdery materials.

[0024] Both sides of the inner wall of the grinding device body 1 are provided with sliding grooves 10. Both ends of the screening plate 4 are fixedly installed with connecting rods 11. The two ends of multiple connecting rods 11 are respectively slidably installed inside the sliding grooves 10 inside the grinding device body 1. During operation, when existing grinding devices for producing plastic pipes filter larger powdery materials through the filter plate, because the filter plate is in a fixed state, larger impurities will get stuck in the screen holes, forming blind hole areas, resulting in a sharp reduction in the effective area of ​​the screen. In order to improve the filtration effect, this device uses connecting rods 11 slidably installed inside the sliding grooves 10 to limit the movement trajectory of the screening plate 4 when it moves back and forth.

[0025] A collection box 20 is provided at the bottom of the inner wall of the grinding device body 1, and the collection box 20 is located at the bottom of the screening plate 4. The outside of the collection box 20 is slidably installed inside the grinding device body 1. During operation, when the existing grinding device for producing plastic pipes filters larger powdery materials through the filter plate, since the filter plate is in a fixed state, larger impurities will get stuck in the screen holes, forming blind hole areas, resulting in a sharp reduction in the effective area of ​​the screen. In order to improve the filtration effect, this device collects the filtered powdery materials through the collection box 20.

[0026] Both the grinding chamber 2 and the drive motor 12 are electrically connected to an external control center, which is used to start and stop them. During operation, when existing grinding devices for producing plastic pipes filter larger powdery materials through a filter plate, the filter plate is fixed, which can cause larger impurities to get stuck in the sieve holes, forming blind hole areas and resulting in a sharp reduction in the effective area of ​​the sieve. In order to improve the filtration effect, this device allows for quick start and stop of the drive motor 12 through the control center, making it more convenient to use the drive motor 12.

[0027] Guide plates 21 are fixedly installed on both sides of the discharge port of the grinding chamber 2. Multiple guide plates 21 are distributed in an inclined manner between multiple grinding rollers 16. During operation, when existing grinding devices for producing plastic pipes filter larger powdery materials through filter plates, large impurities will get stuck in the screen holes due to the fixed state of the filter plates, forming blind hole areas and causing a sharp reduction in the effective area of ​​the screen. In order to improve the filtration effect, this device guides the ground powdery materials to the multiple grinding rollers 16 through multiple guide plates 21.

[0028] Working principle: When grinding defective pipes using a grinding device, the defective pipe to be ground is first placed into the grinding chamber 2 through the opening of the chamber door 3. After grinding is completed, the powdered material is guided by the guide plate 21 to flow between multiple grinding rollers 16. At this time, the drive motor 12 is started by the control center to drive the drive gear 13 to rotate. The rotation of the drive gear 13 drives the driven gear 14 to rotate. The rotation of the drive gear 13 and the driven gear 14 drives the multiple support shafts 15 and the grinding rollers 16 to rotate. The rotation of the multiple grinding rollers 16 achieves the effect of secondary grinding of the ground powdered material. During the secondary grinding of the material, the rotation of one of the support shafts 15 will drive the second external tooth rotating block 17 connected to one end to rotate. When the second external tooth rotating block 17 rotates, it will drive the first external tooth rotating block 9 to rotate through the internal tooth synchronous belt 18. When the first external tooth rotating block 9 rotates, it will drive the rotating rod 8 and the multiple elliptical rotating blocks 7 fixedly installed on its outside to rotate. The elliptical rotating blocks 7 continuously rotate and squeeze one end of the screening plate 4 back and forth, causing it to move backward. When the screening plate 4 moves backward, it will be reset by the multiple springs 5 ​​fixedly installed on its side, ultimately achieving the effect of reciprocating back and forth movement. The reciprocating shaking of the screening plate 4 achieves the effect of shaking and screening the powdery material on its top.

[0029] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0030] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A grinding device for producing plastic pipes, characterized in that: The device includes a grinding device body (1), a grinding chamber (2) fixedly installed on the top of the grinding device body (1), a chamber door (3) opened on the top of the grinding chamber (2), a sieve plate (4) provided inside the grinding device body (1), springs (5) fixedly installed at both ends of one side of the sieve plate (4), and elliptical rotating blocks (7) tightly attached to both ends of the other side of the sieve plate (4). A fixing plate (6) is fixedly installed on the outside of one end of each of the multiple springs (5), and the outside of the fixing plate (6) is fixedly installed on one side of the inner wall of the grinding device body (1). A rotating rod (8) is fixedly installed inside each of the multiple elliptical rotating blocks (7). One end of the rotating rod (8) is rotatably mounted on one side of the inner wall of the grinding device body (1). The other end of the rotating rod (8) passes through the inside of the grinding device body (1) and is fixedly mounted with a first external tooth rotating block (9). An internal tooth synchronous belt (18) is meshed with the outside of the first external tooth rotating block (9). A second external tooth rotating block (17) is meshed with the end of the internal tooth synchronous belt (18) away from the first external tooth rotating block (9). Support shafts (15) are rotatably mounted on both sides of the inner wall of the grinding device body (1). One end of one support shaft (15) passes through the inside of the grinding device body (1) and is fixedly mounted inside the second external tooth rotating block (17).

2. A grinding device for producing plastic pipes according to claim 1, characterized in that: The grinding device body (1) is provided with multiple grinding rollers (16) inside. The interior of each of the multiple grinding rollers (16) is fixedly installed on the outside of the support shaft (15). A drive motor (12) is provided on one side of the outside of the grinding device body (1). A support plate (19) is fixedly installed at the bottom of the drive motor (12). The outer side of the support plate (19) is fixedly installed on the side of the grinding device body (1). A drive gear (13) is fixedly installed at the output end of the drive motor (12). A driven gear (14) is meshed with the outside of the drive gear (13). One end of each of the multiple support shafts (15) passes through the interior of the grinding device body (1) and is fixedly installed inside the drive gear (13) and the driven gear (14) respectively.

3. The apparatus according to claim 1, wherein: The inner walls of the grinding device body (1) are provided with grooves (10) on both sides. The two ends of the sieve plate (4) are fixedly installed with connecting rods (11). The two ends of the multiple connecting rods (11) are respectively slidably installed inside the grooves (10) opened inside the grinding device body (1).

4. The apparatus according to claim 1, wherein: The inner wall of the grinding device body (1) is provided with a collection box (20), and the collection box (20) is located at the bottom of the screening plate (4). The outer side of the collection box (20) is slidably installed inside the grinding device body (1).

5. The apparatus for grinding plastic pipe according to claim 1, wherein: The grinding chamber (2) and the drive motor (12) are both electrically connected to an external control center, which is used to start and stop them.

6. The apparatus according to claim 1, wherein: The grinding chamber (2) has guide plates (21) fixedly installed on both sides of the discharge port, and the multiple guide plates (21) are distributed in an inclined manner between the multiple grinding rollers (16).

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