Medical experimental granulator
By designing adjustable wheel spacing in the pelletizer, the problem of poor adaptability of the existing pelletizer is solved, adaptability to strips of different diameters is achieved, and product specifications and application scope are expanded.
Patent Information
- Application Number
- CN202420544456.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-19
- Publication Date
- 2025-02-21
- Estimated Expiration
- 2034-03-19
AI Technical Summary
The existing pelletizers have poor adaptability and can only be used to cut plastic particles of specific specifications. The product specifications of the processed are relatively single and have a smaller application range.
A medical experimental pelletizer is designed. The wheel spacing between the traction wheel and the driven wheel can be adjusted according to the diameter of the material strip, and the adaptability of material strips of different diameters is achieved through the wheel pitch adjustment assembly.
It improves the adaptability of the pelletizer, can adapt to material strips of different diameters, and expands the diversity of product specifications and application range.
Smart Images
Figure CN222511840U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of medical plastic granule production, in particular to a medical experimental granulator. Background Art
[0002] Plastic pellets have good physical and chemical properties. They can be made into plastic products of various shapes through heating, compression and injection molding. They are widely used in medical equipment, electronic products, building materials and food packaging. In the production process of plastic pellets, the extruder first extrudes the strands, and the pelletizer then cuts the pellets. The pelletizing quality of the pelletizer will affect the quality of the plastic pellets. Therefore, it is particularly necessary to optimize the structure of the pelletizer.
[0003] However, due to the limitation of existing technology, the existing pelletizer can only be used to cut plastic pellets of specific specifications, the product specifications that can be processed are relatively single, the application range is small, and the adaptability is poor. Utility Model Content
[0004] The utility model aims to provide a medical experimental pelletizer, the wheel spacing between the traction wheel and the driven wheel can be adjusted according to the diameter of the material strip, suitable for material strips of different diameters, and solves the technical problem of poor adaptability of the existing pelletizer.
[0005] To achieve the above-mentioned purpose, the utility model provides a medical experimental pelletizer, including a traction wheel and a driven wheel that are rotatably arranged and used to extrude material strips, and a wheel spacing adjustment component for adjusting the wheel spacing between the traction wheel and the driven wheel; the wheel spacing adjustment component includes a rotatable adjustment lever and a sliding block that is slidably arranged and connected to the driven wheel, one end of the adjustment lever is against the sliding block, and the adjustment lever is used to drive the driven wheel to move relative to the traction wheel through the sliding block.
[0006] Preferably, the wheelbase adjustment assembly also includes a fixed guide column and an elastic member sleeved on the guide column, the sliding block can be slidably sleeved on the guide column, one end of the elastic member is fixed and the other end is against the sliding block; a shaft sleeve is provided at the center of the driven wheel, the driven wheel rotates relative to the shaft sleeve, and the shaft sleeve is fixedly connected to the sliding block.
[0007] Preferably, a set screw is passed through the center of the sleeve, and a stop block is provided at the head of the set screw; an abutting flange provided at one end of the sleeve abuts against the stop block, and the other end abuts against the sliding block.
[0008] Preferably, a supporting plate is provided at one end of the adjusting lever close to the sliding block, and a plurality of stacked adjusting gaskets are provided between the sliding block and the supporting plate.
[0009] Preferably, any adjusting gasket is a flexible gasket.
[0010] Preferably, the wheelbase adjustment assembly further comprises an adjustment button inserted into the housing and movable up and down, an end of the adjustment button is provided with an abutment roller, and the abutment roller abuts against an end of the adjustment lever away from the sliding block.
[0011] Preferably, a rotatable pelletizer is further included, the discharge ports of the traction wheel and the driven wheel are in the radial direction of the pelletizer, and the pelletizer is used to cut the material strips extruded from between the traction wheel and the driven wheel to form plastic pellets.
[0012] Preferably, the traction wheel is connected to a traction motor, and the pelletizer is connected to a pelletizer; the traction motor and the pelletizer are both connected to a controller; the controller is used to adjust the speed of at least one of the pelletizer motor and the traction motor according to the input set pelletizer length so that the current speed ratio between the pelletizer and the traction wheel matches the set pelletizer length.
[0013] Preferably, the feed ends of both the traction wheel and the driven wheel are provided with at least one feed opening.
[0014] Preferably, the apertures of all feed openings gradually increase.
[0015] As for the background technology, the utility model adds a wheel spacing adjustment component between the traction wheel and the driven wheel, and the wheel spacing adjustment component includes an adjustment lever and a sliding block. The adjustment lever can be rotatably set and abut against the sliding block, and the sliding block can be slidably set and connected to the driven wheel. When the adjustment lever is turned, the adjustment lever drives the sliding block to move up and down, and the sliding block drives the driven wheel to move synchronously. The driven wheel moves relative to the traction wheel, and the position of the driven wheel changes, so as to adjust the wheel spacing between the driven wheel and the traction wheel. The material strip is squeezed out between the driven wheel and the traction wheel, so that the wheel spacing between the driven wheel and the traction wheel changes with the change of the material strip diameter, and is adapted to the material strips of different diameters, and the adaptability is improved. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.
[0017] Figure 1 A structural diagram of a wheelbase adjustment assembly of a medical experimental pelletizer provided by an embodiment of the utility model;
[0018] Figure 2 for Figure 1 A longitudinal section view of the center track adjustment assembly;
[0019] Figure 3This is a structural diagram of a medical experimental pelletizer provided in an embodiment of the utility model.
[0020] The reference numerals are as follows:
[0021] Traction wheel 1, driven wheel 2, wheelbase adjustment assembly 3, adjustment gasket 4, adjustment button 5, pelletizing knife 6, discharge port 7 and feed port 8;
[0022] Adjusting lever 31, sliding block 32, guide column 33, elastic member 34, bushing 35 and fastening screw 36;
[0023] Support plate 311;
[0024] Abutting roller 51. DETAILED DESCRIPTION
[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0026] In order to enable those skilled in the art to better understand the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0027] The utility model embodiment discloses a medical experimental granulator, as shown in the attached Figures 1 to 3 As shown, it includes a traction wheel 1, a driven wheel 2 and a wheelbase adjustment assembly 3. Both the traction wheel 1 and the driven wheel 2 can be rotatably arranged, and an extrusion gap is formed between the traction wheel 1 and the driven wheel 2 for extruding material strips.
[0028] The wheel spacing adjustment assembly 3 is used to adjust the wheel spacing between the traction wheel 1 and the driven wheel 2. The wheel spacing adjustment assembly 3 includes an adjustment lever 31 and a sliding block 32. The middle section of the adjustment lever 31 is rotatably arranged. A rotating pin is provided on the housing, and the adjustment lever 31 is rotatably sleeved on the rotating pin. A ball bearing is provided between the adjustment lever 31 and the rotating pin to support the rotation of the rotating pin around which the adjustment lever 31 rotates. The sliding block 32 is slidably arranged and connected to the driven wheel 2, so that the driven wheel 2 moves up and down synchronously with the sliding block 32.
[0029] One end of the adjusting lever 31 is against the sliding block 32. When the adjusting lever 31 is toggled, the adjusting lever 31 drives the sliding block 32 to move up and down, and the sliding block 32 drives the driven wheel 2 to move synchronously. The driven wheel 2 moves relative to the traction wheel 1, and the position of the driven wheel 2 changes, so that the wheel spacing between the driven wheel 2 and the traction wheel 1 is adjusted, and the material strip is squeezed out between the driven wheel 2 and the traction wheel 1, so that the wheel spacing between the driven wheel 2 and the traction wheel 1 changes with the change of the material strip diameter, so as to adapt to the material strips of different diameters and improve the adaptability.
[0030] The wheelbase adjustment assembly 3 also includes a guide column 33 and an elastic member 34. The guide column 33 is fixedly arranged on the housing, and the sliding block 32 can be slidably mounted on the guide column 33, so that the guide column 33 guides the sliding block 32 to move up and down. The elastic member 34 is mounted on the guide column 33, and one end of the elastic member 34 is fixedly arranged and the other end is against the sliding block 32. When the adjustment lever 31 pushes the sliding block 32 to move upward, the elastic member 34 remains in a compressed state, and the elastic member 34 provides downward pressure for the sliding block 32, so that the adjustment lever 31 and the sliding block 32 are in reliable contact. When the adjustment lever 31 is away from the sliding block 32, the elastic member 34 restores the elastic deformation, and the elastic member 34 pushes the sliding block 32 downward, driving the driven wheel 2 to move downward and reset. The elastic member 34 can be a common cylindrical spring, but is not limited to this, for example, it can also be a spring.
[0031] A shaft sleeve 35 is provided at the center of the driven wheel 2, and the driven wheel 2 rotates relative to the shaft sleeve 35, and the shaft sleeve 35 is used to support the rotation of the driven wheel 2. The shaft sleeve 35 is fixedly connected to the sliding block 32, in other words, the shaft sleeve 35 only moves up and down with the sliding block 32, and only the driven wheel 2 rotates, and the driven wheel 2 and the shaft sleeve 35 rotate asynchronously.
[0032] A set screw 36 is passed through the center of the sleeve 35, and a stop block is provided at the head of the set screw 36. The abutment flange provided at one end of the sleeve 35 abuts against the stop block, and the other end abuts against the sliding block 32, so that the sleeve 35 is fixedly connected to the sliding block 32. Of course, the connection method between the sleeve 35 and the sliding block 32 is not limited to this.
[0033] A support plate 311 is provided at one end of the adjustment lever 31 close to the sliding block 32. Compared with the rod-shaped structure, the support plate 311 can increase the contact area with the sliding block 32, ensuring that the support plate 311 can reliably support the sliding block 32. A plurality of stacked adjustment gaskets 4 are provided between the sliding block 32 and the support plate 311. The height of the sliding block 32 can be adjusted by increasing or decreasing the number of the adjustment gaskets 4, thereby further adjusting the wheel spacing between the traction wheel 1 and the driven wheel 2.
[0034] Any adjusting gasket 4 is a flexible gasket, so that the adjusting gasket 4 can also provide a buffer between the adjusting lever 31 and the sliding block 32. The flexible gasket can be a rubber gasket or a nylon gasket, which is not specifically limited here.
[0035] The wheelbase adjustment assembly 3 further includes an adjustment button 5 inserted into the housing and movable up and down, which is used to toggle the adjustment lever 31. An abutment roller 51 is provided at the end of the adjustment button 5, and the abutment roller 51 abuts against the end of the adjustment lever 31 away from the sliding block 32, so as to reduce the contact area between the adjustment button 5 and the adjustment lever 31, thereby avoiding serious wear between the adjustment button 5 and the adjustment lever 31.
[0036] The medical experimental pelletizer further includes a rotatably arranged pelletizer 6, and the discharge ports 7 of the traction wheel 1 and the driven wheel 2 are in the radial direction of the pelletizer 6. The pelletizer 6 is used to cut the material strips extruded from between the traction wheel 1 and the driven wheel 2 to form plastic pellets. The outer side of the pelletizer 6 is evenly distributed with six blades, and the oblique planes and arc surfaces on both sides of each blade meet to form a blade tip, which is used to cut the extruded material strips.
[0037] The traction wheel 1 is connected to a traction motor, and the pelletizer 6 is connected to a pelletizer motor. Both the traction motor and the pelletizer motor are connected to a controller, and the controller is used to adjust the speed of at least one of the pelletizer motor and the traction motor according to the input set pelletizer length, thereby adjusting the speed of the pelletizer knife 6 and the traction wheel 1, so that the current speed ratio between the pelletizer knife 6 and the traction wheel 1 matches the set pelletizer length, so as to accurately control the pelletizer length and improve the processing quality. The set pelletizer length in the text can be obtained through a touch screen, a computer, etc., and the matching relationship between the speed ratio and the pelletizer length can also be pre-input into the controller. The signal control method and control method of the controller can refer to the prior art. The utility model only changes the application scenario of the controller, and does not make substantial improvements to the controller itself. This type of controller is widely used in existing automatic control equipment, such as MCU, DSP or single-chip microcomputer. The key point of the utility model is that the controller connects the traction motor and the pelletizer motor.
[0038] At least one feed port 8 is provided at the feed end of the traction wheel 1 and the driven wheel 2, and the apertures of all the feed ports 8 gradually increase. By changing the number and apertures of the feed ports 8, the traction wheel 1 and the driven wheel 2 can also extrude material strips of different diameters, and the adaptability is further improved.
[0039] It should be noted that, in this specification, relational terms such as first and second are merely used to distinguish one entity from other entities, but do not necessarily require or imply any actual relationship or order between these entities.
[0040] This article uses specific examples to illustrate the principles and implementation methods of the utility model. The above examples are only used to help understand the method and core ideas of the utility model. It should be pointed out that for ordinary technicians in this technical field, without departing from the principles of the utility model, the utility model can also be improved and modified, and these improvements and modifications also fall within the scope of protection of the claims of the utility model.
Claims
1. A medical experimental pelletizer, characterized in that: The invention comprises a traction wheel (1) and a driven wheel (2) which are rotatably arranged and used for extruding material strips, and a wheel spacing adjustment component (3) which is used for adjusting the wheel spacing between the traction wheel (1) and the driven wheel (2); the wheel spacing adjustment component (3) comprises an adjustment lever (31) which is rotatably arranged and a sliding block (32) which is slidably arranged and connected to the driven wheel (2); one end of the adjustment lever (31) is against the sliding block (32); the adjustment lever (31) is used to drive the driven wheel (2) to move relative to the traction wheel (1) through the sliding block (32).
2. The medical experimental pelletizer according to claim 1, characterized in that: The wheelbase adjustment assembly (3) further comprises a fixed guide column (33) and an elastic member (34) sleeved on the guide column (33); the sliding block (32) can be slidably sleeved on the guide column (33); one end of the elastic member (34) is fixedly arranged and the other end abuts against the sliding block (32); a shaft sleeve (35) is provided at the center of the driven wheel (2); the driven wheel (2) rotates relative to the shaft sleeve (35); the shaft sleeve (35) is fixedly connected to the sliding block (32).
3. The medical experimental pelletizer according to claim 2, characterized in that: A fastening screw (36) is passed through the center of the shaft sleeve (35), and a stop block is provided at the head of the fastening screw (36); an abutting flange provided at one end of the shaft sleeve (35) abuts against the stop block, and the other end abuts against the sliding block (32).
4. The medical experimental pelletizer according to any one of claims 1 to 3, characterized in that: A supporting plate (311) is provided at one end of the adjusting lever (31) close to the sliding block (32), and a plurality of stacked adjusting gaskets (4) are provided between the sliding block (32) and the supporting plate (311).
5. The medical experimental pelletizer according to claim 4, characterized in that: Any of the adjusting gaskets (4) is a flexible gasket.
6. The medical experimental pelletizer according to any one of claims 1 to 3, characterized in that: The wheelbase adjustment assembly (3) further comprises an adjustment button (5) inserted into the housing and movable up and down, wherein an abutment roller (51) is provided at the end of the adjustment button (5), and the abutment roller (51) abuts against an end of the adjustment lever (31) away from the sliding block (32).
7. The medical experimental pelletizer according to any one of claims 1 to 3, characterized in that: It also comprises a rotatably arranged pelletizer (6), wherein the discharge ports (7) of the traction wheel (1) and the driven wheel (2) are located in the radial direction of the pelletizer (6), and the pelletizer (6) is used to cut the material strips extruded from between the traction wheel (1) and the driven wheel (2) to form plastic pellets.
8. The medical experimental pelletizer according to claim 7, characterized in that: The traction wheel (1) is connected to a traction motor, and the pelletizer (6) is connected to a pelletizer motor; the traction motor and the pelletizer motor are both connected to a controller; the controller is used to adjust the rotation speed of at least one of the pelletizer motor and the traction motor according to an input set pelletizer length so that the current rotation speed ratio between the pelletizer knife (6) and the traction wheel (1) matches the set pelletizer length.
9. The medical experimental pelletizer according to any one of claims 1 to 3, characterized in that: At least one feed port (8) is provided at the feed ends of the traction wheel (1) and the driven wheel (2).
10. The medical experimental pelletizer according to claim 9, characterized in that: The apertures of all the feed openings (8) gradually increase.