Screening device for raw materials for injection molding
By designing a raw material screening device for injection molding with screening components and push-top components, the up and down swing of the screen frame improves the screening efficiency, and through a convenient screen replacement mechanism, the problems of poor screening effect and continuous screening in the prior art are solved.
Patent Information
- Application Number
- CN202421302207.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-07
- Publication Date
- 2025-04-29
- Estimated Expiration
- 2034-06-07
AI Technical Summary
The existing screening device has poor screening effect on the injection molding raw materials, and the continuously screened raw materials are easily piled up on the screen, affecting the continuous screening effect.
A raw material screening device for injection molding including a screening assembly and a push-top assembly is designed. By setting a first rotating shaft, a slide rail column and a swing frame, the screen frame can swing up and down, improving the screening separation efficiency of raw materials, and facilitating the replacement of the screen frame through the design of insert holes, screen frames, tough plates and blocks.
The screening effect of injection molding raw materials is improved, the raw materials are prevented from pile up, the efficiency of continuous screening is ensured, and the screening of different mesh numbers is facilitated, which improves the practicality of the device.
Smart Images
Figure CN222807422U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a screening device, in particular to a screening device for raw materials used for injection molding. Background Art
[0002] Plastic raw materials are a kind of polymer, also known as macromolecules or macromolecules, and are also commonly known as plastics or resins. The so-called plastic raw materials are actually a kind of [synthetic resin]. Their shape is similar to [pine resin] in natural resin, but because they are synthesized by chemical forces, they are called plastics. This polymer is composed of many smaller and simple molecules combined by covalent bonds. The main common raw materials include PE, PP, PVC, PS, ABS, PMMA, POM, PC, PA, etc.
[0003] Thermosetting plastics mainly refer to plastics made of synthetic resins that are hardened by heat, such as some phenolic plastics and amino plastics. However, due to problems during production, it is generally necessary to use a screening device to screen and distinguish the raw materials for injection molding, so as to facilitate the handling of different sizes of injection molding raw materials. As a result, during the heating process, the distance from the heating tube may be insufficient, and the heating effect cannot be achieved. In this way, the products produced will have defects. The existing screening device has a poor screening effect on raw materials. For continuously screened raw materials, they are easily accumulated on the screen after screening, thereby affecting the continuous screening effect.
[0004] In view of this, the utility model provides a screening device for raw materials for injection molding. Utility Model Content
[0005] The purpose of the utility model is to provide a screening device for raw materials for injection molding, so as to solve the problem that the existing screening device proposed in the above background technology has poor screening effect on raw materials, and the raw materials screened continuously are easily accumulated on the screen after screening, thereby affecting the continuous screening effect.
[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a screening device for raw materials for injection molding, comprising a box body, the box body is connected to both a screening assembly and a pushing assembly, the pushing assembly is connected to the screening assembly, the screening assembly corresponds to a replacement hole opened on the box body and communicating with the interior, the box body is provided with a feed hopper communicating with the interior, and a switch is installed on the front side of the box body.
[0007] As a preferred technical solution of the utility model, the screening assembly includes a first rotating shaft and two slide rail columns, the two ends of the first rotating shaft are rotatably connected to the front and rear side plates of the box body through bearings, the first rotating shaft is fixedly connected to the swing frame located inside the box body, and the swing frame corresponds to the discharge frame arranged on the right side of the box body.
[0008] As a preferred technical solution of the utility model, the swing frame is provided with an insertion hole which passes through its front side surface, the insertion hole is socketed with the screen frame, the screen frame corresponds to the inclined surface set on the bottom surface of the box body, and the lower left end of the inclined surface corresponds to the discharge hole opened on the box body.
[0009] As a preferred technical solution of the utility model, the upper ends of the two slide rail columns are respectively fixedly connected to the two fixing rings, the lower ends of the two slide rail columns are respectively fixedly connected to the two second fixing plates, the two second fixing plates are both fixedly connected to the inner side of the box body, and the two slide rail columns are respectively sleeved with the two sliding rings.
[0010] As a preferred technical solution of the utility model, the two sliding rings and the opposite sides of the two second fixing plates are fixedly connected to two springs respectively, and the two springs are respectively sleeved with two slide rail columns.
[0011] As a preferred technical solution of the utility model, the two sliding rings are movably connected to the lower ends of the two push-pull plates, the upper ends of the two push-pull plates are movably connected to the two first fixed plates, and the two first fixed plates are fixedly connected to the left end of the bottom surface of the swing frame.
[0012] As a preferred technical solution of the utility model, the front end of the screen frame is fixedly connected to the tough plate, the tough plate is arranged in an L-shape and is adapted to the card insertion hole, a blocking block is fixedly connected to the upper surface of the tough plate, and the rear side surface of the blocking block is arranged in an arc shape.
[0013] As a preferred technical solution of the utility model, the ejection assembly includes a second rotating shaft, which is rotatably connected to the left side plate of the box body through a bearing, the left end of the second rotating shaft is fixedly connected to the motor output shaft installed on the left side of the box body, and the right end of the second rotating shaft is fixedly connected to one end of the rotating plate located inside the box body.
[0014] As a preferred technical solution of the utility model, the other end of the rotating plate is rotatably connected to the third rotating shaft through a bearing, the third rotating shaft is fixedly connected to the pushing wheel, and the pushing wheel corresponds to the left end of the bottom surface of the swing frame.
[0015] As a preferred technical solution of the utility model, the feed hopper corresponds to the left side of the screen frame up and down.
[0016] Compared with the prior art, the beneficial effects of the utility model are:
[0017] 1. The utility model provides a screening component and a pushing component, so that the pushing component can push the swing frame to swing up and down, so that the screen frame can be driven to swing up and down synchronously, so that the screened raw materials on the screen frame can be swung to facilitate rapid separation through the screen frame, thereby improving the screening effect. At the same time, the screen frame swings up and down according to the first rotating shaft, so that the screen frame can screen and isolate the raw materials thereon, and the raw materials can be sifted out from the discharge frame along with the swing frame and discharged, so that the device can discharge the screened raw materials on the screen frame in time, thereby not affecting the continuous screening effect of the device, and can be convenient for screening and separating injection molding raw materials.
[0018] 2. The utility model provides the card insertion hole, screen frame, tough plate and blocking block, so that the screen frame and the swing frame can be taken out and replaced, so that it is convenient to replace and use the screen frames with different mesh sizes, thereby improving the practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 This is a front view structural schematic diagram of the utility model;
[0020] Figure 2 It is a schematic diagram of the cross-sectional structure of the utility model;
[0021] Figure 3 This is a schematic diagram of the structure of the screening assembly of the utility model;
[0022] Figure 4 This is a schematic diagram of the screen frame structure of the utility model;
[0023] Figure 5 It is a schematic diagram of the structure of the ejection assembly of the utility model.
[0024] In the figure: 1. box body; 11. replacement hole; 12. discharge frame; 13. inclined surface; 2. screening assembly; 21. first rotating shaft; 22. swing frame; 221. card insertion hole; 222. first fixed plate; 23. screen frame; 231. tough plate; 232. blocking block; 24. slide rail column; 25. push-pull plate; 26. sliding ring; 27. spring; 28. second fixed plate; 29. fixed ring; 3. ejector assembly; 31. second rotating shaft; 32. motor; 33. rotating plate; 34. third rotating shaft; 35. ejector wheel; 4. switch; 5. feed hopper. 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] See also Figure 1-5 The utility model provides a technical solution of a screening device for raw materials for injection molding: it includes a box body 1, the box body 1 is connected to a screening component 2 and a push-up component 3, the push-up component 3 is connected to the screening component 2, the screening component 2 corresponds to a replacement hole 11 opened on the box body 1 and communicating with the interior, the box body 1 is provided with a feed hopper 5 communicating with the interior, and a switch 4 is installed on the front side of the box body 1.
[0027] The screening assembly 2 includes a first rotating shaft 21 and two slide rail columns 24. The two ends of the first rotating shaft 21 are rotatably connected to the front and rear side plates of the box body 1 through bearings. The first rotating shaft 21 is fixedly connected to a swing frame 22 located inside the box body 1. The swing frame 22 corresponds to the discharge frame 12 set on the right side of the box body 1.
[0028] The swing frame 22 is provided with a card insertion hole 221 penetrating through its front side, and the screen frame 23 is sleeved in the card insertion hole 221. The screen frame 23 corresponds to the inclined surface 13 set on the bottom surface of the box body 1, and the lower left end of the inclined surface 13 corresponds to the discharge hole opened on the box body 1.
[0029] The upper ends of the two slide rail columns 24 are fixedly connected to the two fixing rings 29 respectively, and the lower ends of the two slide rail columns 24 are fixedly connected to the two second fixing plates 28 respectively. The two second fixing plates 28 are fixedly connected to the inner side of the box body 1, and the two slide rail columns 24 are respectively sleeved with the two sliding rings 26.
[0030] The opposite sides of the two sliding rings 26 and the two second fixed plates 28 are fixedly connected with two springs 27 respectively, and the two springs 27 are respectively sleeved with the two slide rail columns 24, so that the push wheel 35 can rotate in a circle and disengage from the upward push on the swing frame 22, so that the spring 27 drives the sliding ring 26 and the push-pull plate 25 to pull the swing frame 22 to flip downward and fall on the fixed ring 29 to generate vibration. At the same time, the spring 27 also pushes it to bounce upward, so that the swing frame 22 drives the screen frame 23 to generate micro-vibration, so that the raw materials that pass through the feed hopper 5 and fall on the screen frame 23 can be screened and separated, and the screened raw materials fall on the inclined surface 13 and are collected through the discharge hole. At the same time, the raw materials screened and isolated on the screen frame 23 are screened out to the discharge frame 12 as the swing frame 22 swings up and down, so that the raw materials can be continuously screened and separated.
[0031] The two sliding rings 26 are movably connected to the lower ends of the two push-pull plates 25 , respectively. The upper ends of the two push-pull plates 25 are movably connected to the two first fixed plates 222 , respectively. The two first fixed plates 222 are fixedly connected to the left end of the bottom surface of the swing frame 22 .
[0032] The front end of the screen frame 23 is fixedly connected to the flexible plate 231, and the flexible plate 231 is set to be L-shaped and compatible with the card insertion hole 221. A blocking block 232 is fixedly connected to the upper surface of the flexible plate 231, and the rear side surface of the blocking block 232 is set to be arc-shaped. The feed hopper 5 is extended into the interior of the box body 1 to press the flexible plate 231 downward, and the flexible plate 231 drives the blocking block 232 to correspond to the card insertion hole 221, and then pulls or pushes the screen frame 23 to slide out of the card insertion hole 221, so as to facilitate the replacement of screen frames 23 with other mesh sizes through the replacement hole 11.
[0033] The ejection assembly 3 includes a second rotating shaft 31, which is rotatably connected to the left side plate of the box body 1 through a bearing, the left end of the second rotating shaft 31 is fixedly connected to the output shaft of the motor 32 installed on the left side of the box body 1, and the right end of the second rotating shaft 31 is fixedly connected to one end of the rotating plate 33 located inside the box body 1. The motor 32 on the ejection assembly 3 is started by controlling the switch 4, and the motor 32 drives the rotating plate 33 on the second rotating shaft 31 to perform circular motion, so that the rotating plate 33 drives the ejection wheel 35 on the third rotating shaft 34 to perform circular motion synchronously. At the same time, the ejection wheel 35 rotates to push the swing frame 22 on the screening assembly 2 to flip upward, and the swing frame 22 drives the screen frame 23 to flip upward synchronously, and the swing frame 22 drives the two push-pull plates 25 to move upward and drives the sliding ring 26 to move upward synchronously, so that the sliding ring 26 stretches the spring 27 to generate a downward elastic pulling force, so that the ejection wheel 35 generates an upward thrust on the swing frame 22.
[0034] The other end of the rotating plate 33 is rotatably connected to the third rotating shaft 34 through a bearing. The third rotating shaft 34 is fixedly connected to a push-up wheel 35 . The push-up wheel 35 corresponds to the left end of the bottom surface of the swing frame 22 .
[0035] The feed hopper 5 corresponds to the left side of the screen frame 23 up and down, so that the raw materials entering the box body 1 through the feed hopper 5 can fall to the left side of the screen frame 23. In this way, the raw materials can be retained in the screen frame 23 for a longer time after the screen frame 23 swings up and down, thus improving its screening and separation effect.
[0036] The operating steps of the utility model are:
[0037] The motor 32 on the ejection assembly 3 is started by controlling the switch 4, and the motor 32 drives the rotating plate 33 on the second rotating shaft 31 to perform circular motion, so that the rotating plate 33 drives the ejection wheel 35 on the third rotating shaft 34 to perform circular motion synchronously. At the same time, the ejection wheel 35 rotates to push the swing frame 22 on the screening assembly 2 to flip upward, and the swing frame 22 drives the screen frame 23 to flip upward synchronously, and the swing frame 22 drives the two push-pull plates 25 to move upward and drives the sliding ring 26 to move upward synchronously, so that the sliding ring 26 stretches the spring 27 to generate a downward elastic pulling force;
[0038] At the same time, as the push-up wheel 35 rotates in a circle, it is disengaged from pushing the swing frame 22 upward, so that the spring 27 drives the sliding ring 26 and the push-pull plate 25 to pull the swing frame 22 to flip downward and fall on the fixed ring 29 to generate vibration. At the same time, the spring 27 also pushes it to bounce upward, so that the swing frame 22 drives the screen frame 23 to generate micro-vibration, so that the raw materials that pass through the feed hopper 5 and fall on the screen frame 23 can be screened and separated, and the screened raw materials fall on the inclined surface 13 and are collected through the discharge hole. At the same time, the raw materials screened and isolated on the screen frame 23 are screened out to the discharge frame 12 as the swing frame 22 swings up and down, and are discharged, so that the raw materials can be continuously screened and separated;
[0039] To replace the screen frame 23, the feed hopper 5 can be extended into the interior of the box body 1 to press the tough plate 231 downward. The tough plate 231 drives the blocking block 232 to correspond to the card insertion hole 221, and then the screen frame 23 is pulled or pushed to slide out of the card insertion hole 221, thereby facilitating the replacement of screen frames 23 of other mesh sizes through the replacement hole 11.
[0040] In the description of the present invention, it is necessary to understand that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.
[0041] In the present invention, unless otherwise clearly stipulated and limited, for example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, for ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.
[0042] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A device for screening raw materials for injection molding, comprising a box (1), characterized in that: The box (1) is connected to both the screening assembly (2) and the ejection assembly (3); the ejection assembly (3) is connected to the screening assembly (2); the screening assembly (2) corresponds to a replacement hole (11) provided on the box (1) and communicating with the interior; the box (1) is provided with a feed hopper (5) communicating with the interior; and a switch (4) is installed on the front side of the box (1); The screening assembly (2) comprises a first rotating shaft (21) and two slide rail columns (24); the two ends of the first rotating shaft (21) are rotatably connected to the front and rear side plates of the box body (1) respectively through bearings; the first rotating shaft (21) is fixedly connected to a swing frame (22) located inside the box body (1); the swing frame (22) corresponds to a discharge frame (12) arranged on the right side of the box body (1); The swing frame (22) is provided with a card insertion hole (221) penetrating the front side thereof, the card insertion hole (221) is sleeved with a screen frame (23), the screen frame (23) corresponds to an inclined surface (13) provided on the inner bottom surface of the box body (1), and the lower left end of the inclined surface (13) corresponds to a discharge hole provided on the box body (1); The front end of the screen frame (23) is fixedly connected to a flexible plate (231); the flexible plate (231) is arranged in an L-shape and is adapted to the card insertion hole (221); a blocking block (232) is fixedly connected to the upper surface of the flexible plate (231); and the rear side surface of the blocking block (232) is arranged in an arc shape.
2. The device for screening raw materials for injection molding according to claim 1, characterized in that: The upper ends of the two slide rail columns (24) are respectively fixedly connected to the two fixing rings (29), the lower ends of the two slide rail columns (24) are respectively fixedly connected to the two second fixing plates (28), the two second fixing plates (28) are both fixedly connected to the inner side of the box body (1), and the two slide rail columns (24) are respectively sleeved with the two sliding rings (26).
3. A device for screening raw materials for injection molding according to claim 2, characterized in that: The opposite sides of the two sliding rings (26) and the two second fixing plates (28) are respectively fixedly connected to two springs (27), and the two springs (27) are respectively sleeved with two slide rail columns (24).
4. The device for screening raw materials for injection molding according to claim 2, characterized in that: The two sliding rings (26) are movably connected to the lower ends of the two push-pull plates (25), respectively; the upper ends of the two push-pull plates (25) are movably connected to the two first fixed plates (222), respectively; and the two first fixed plates (222) are fixedly connected to the left end of the bottom surface of the swing frame (22).
5. The device for screening raw materials for injection molding according to claim 1, characterized in that: The ejection assembly (3) comprises a second rotating shaft (31), the second rotating shaft (31) being rotatably connected to the left side plate of the housing (1) via a bearing, the left end of the second rotating shaft (31) being fixedly connected to the output shaft of a motor (32) mounted on the left side of the housing (1), and the right end of the second rotating shaft (31) being fixedly connected to one end of a rotating plate (33) located inside the housing (1).
6. The device for screening raw materials for injection molding according to claim 5, characterized in that: The other end of the rotating plate (33) is rotatably connected to the third rotating shaft (34) through a bearing, and the third rotating shaft (34) is fixedly connected to a push-up wheel (35), and the push-up wheel (35) corresponds to the left end of the bottom surface of the swing frame (22).
7. The device for screening raw materials for injection molding according to claim 1, characterized in that: The feed hopper (5) corresponds to the left side of the screen frame (23) up and down.