A raw material screening device for latex production
By designing a raw material screening device for latex production, and utilizing the cooperation of drive components and conveyor blocks, intermittent quantitative conveying and screening of latex raw materials were achieved, solving the problem of clogging in screening devices during latex production and improving screening quality and efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI QIANGSHENG CHEM
- Filing Date
- 2025-05-08
- Publication Date
- 2026-06-05
Smart Images

Figure CN224323382U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a screening device, specifically a raw material screening device for latex production. Background Technology
[0002] Latex generally refers to a colloidal emulsion formed by polymer microparticles dispersed in water, also known as latex. Conventionally, the aqueous dispersion of rubber microparticles is called latex, while the aqueous dispersion of resin microparticles is called emulsion. Products made from latex are called latex products, such as sponges, gloves, toys, and tubing. Latex can be divided into three categories: natural, synthetic, and artificial. Natural latex is a milky white, flowing liquid that looks like milk. Natural latex is a biosynthetic product. Due to differences in tree species, geology, climate, and other related conditions, its composition and colloidal structure often vary greatly. In fresh latex without any added substances, rubber hydrocarbons account for only 20%-40% of the total amount, with the remainder being small amounts of non-rubber components and water. Non-rubber components include proteins, lipids, sugars, and inorganic components, some of which form complex structures with rubber particles, while others dissolve in the whey or form non-rubber particles.
[0003] When using latex raw materials, they usually need to be screened to remove impurities. Because latex raw materials are quite viscous, existing screening devices can screen a large amount of raw materials at a time, which can easily cause clogging of the screening device and thus affect the efficiency and quality of latex production. Therefore, it is necessary to design a raw material screening device for latex production to solve this problem. Utility Model Content
[0004] The purpose of this invention is to provide a raw material screening device for latex production, so as to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution:
[0006] A raw material screening device for latex production includes a support plate, a vertical plate mounted on the support plate, a housing mounted at the end of the vertical plate away from the support plate, a stirring rod disposed within the housing, a discharge pipe mounted at the bottom of the housing, a conveying chamber connected at the end of the discharge pipe away from the housing, a conveying block disposed within the conveying chamber, the conveying block slidably fitting against the conveying chamber, a conveying groove formed on the conveying block, a discharge port formed at the bottom of the conveying chamber, a sliding groove formed on the support plate, a slider slidably mounted within the sliding groove, a screening frame mounted on the slider, a screening trough and a collection chamber formed within the screening frame, a connecting hole formed on the bottom wall of the screening trough communicating with the collection chamber, a drive assembly mounted on the housing, the stirring rod connected to the drive assembly, a transmission assembly mounted on the vertical plate, one end of the transmission assembly connected to the drive assembly, the other end connected to the conveying block, and a connecting mechanism mounted on the slider, the end of the connecting mechanism away from the slider connected to the drive assembly.
[0007] As a further embodiment of this utility model: the driving assembly includes a driving component, which is mounted on the housing. A driving shaft is mounted on the output end of the driving component, and the end of the driving shaft away from the driving component passes through the housing. A stirring rod is mounted on the driving shaft.
[0008] As a further embodiment of this utility model: the transmission assembly includes a driven shaft, one end of which is rotatably connected to the vertical plate, and the other end extends into the conveying cavity and is fixedly connected to the conveying block. The driven shaft is rotatably connected to the side wall of the conveying cavity. A connecting unit is installed on the drive shaft, and the end of the connecting unit away from the drive shaft is connected to the driven shaft.
[0009] As a further embodiment of this utility model: the transmission mechanism includes a turntable, which is mounted on a drive shaft. A guide rod is eccentrically mounted on the turntable. A guide plate is provided on one side of the turntable, and a guide groove is provided on the guide plate. The end of the guide rod away from the turntable extends into the guide groove. A crossbar is installed on one side of the guide plate, and the end of the crossbar away from the guide plate is connected to the slider.
[0010] As a further embodiment of this invention, the driving component is a stepper motor.
[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: When screening raw materials, the driving component drives the drive shaft connected to it to rotate, and the rotation of the drive shaft drives the stirring rod connected to it to rotate. The rotation of the stirring rod stirs the raw materials, improving their fluidity and preventing them from clumping. The rotation of the drive shaft drives the driven shaft connected to it to rotate through the connecting unit. During the uniform rotation of the driven shaft, the conveying block at one end rotates uniformly in the conveying chamber. The rotation of the conveying block causes the conveying trough to rotate intermittently to the bottom of the discharge pipe, allowing the raw materials to fall into the conveying trough. The raw materials then fall into the discharge port at the bottom as the conveying block rotates. During this process, the conveying block can convey... The trough intermittently and quantitatively conveys raw materials, allowing them to fall intermittently and quantitatively into the screening frame. This, combined with the screening frame, improves the screening quality and prevents insufficient material flow that could cause blockage in the screening frame due to excessive material screening at once. The drive shaft rotates, causing the turntable to rotate. The turntable's rotation drives the connected guide rod to perform a circular motion. During this process, the guide rod, in conjunction with the guide trough, causes the guide plate to move laterally back and forth. The guide plate then causes the slider at one end of the crossbar to slide back and forth. This sliding motion of the slider causes the screening frame on one side to sway back and forth. The swaying of the screening frame, in turn, causes the raw materials falling into the screening trough to sway, thereby improving the screening quality and efficiency. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of a raw material screening device for latex production.
[0013] Figure 2This is a schematic diagram of the conveyor block in a raw material screening device for latex production.
[0014] Figure 3 This is a schematic diagram of the connecting unit in a raw material screening device for latex production.
[0015] In the diagram: 1. Support plate; 2. Vertical plate; 3. Box body; 4. Driving component; 5. Drive shaft; 6. Stirring rod; 7. Feed pipe; 8. Conveying chamber; 9. Driven shaft; 10. Drop port; 11. Connecting unit; 12. Turntable; 13. Guide plate; 14. Guide rod; 15. Horizontal bar; 16. Sliding block; 17. Screening frame; 18. Collection chamber; 19. Screening trough; 20. Connecting hole; 21. Conveying block; 22. Conveying trough. Detailed Implementation
[0016] 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 protection scope of the present utility model.
[0017] Please see Figures 1-3 As an embodiment of this utility model, a raw material screening device for latex production includes a support plate 1, a vertical plate 2 installed on the support plate 1, a box 3 installed at the end of the vertical plate 2 away from the support plate 1, a stirring rod 6 disposed in the box 3, a discharge pipe 7 installed at the bottom of the box 3, a conveying chamber 8 connected at the end of the discharge pipe 7 away from the box 3, a conveying block 21 disposed in the conveying chamber 8, the conveying block 21 slidingly fitting with the conveying chamber 8, a conveying groove 22 opened on the conveying block 21, a discharge port 10 opened at the bottom of the conveying chamber 8, and a sliding groove 22 opened on the support plate 1. A slider 16 is slidably installed in the trough and slide. A screening frame 17 is installed on the slider 16. A screening trough 19 and a collection chamber 18 are provided in the screening frame 17. A connecting hole 20 is opened on the bottom wall of the screening trough 19, and the connecting hole 20 communicates with the collection chamber 18. A drive assembly is installed on the box body 3. The stirring rod 6 is connected to the drive assembly. A transmission assembly is installed on the vertical plate 2. One end of the transmission assembly is connected to the drive assembly, and the other end is connected to the conveying block 21. A connecting mechanism is installed on the slider 16. The end of the connecting mechanism away from the slider 16 is connected to the drive assembly.
[0018] In this embodiment, when screening the raw materials, the drive assembly drives the connected stirring rod 6 to rotate. The rotation of the stirring rod 6 stirs the raw materials, improving their flowability and preventing them from clumping. Simultaneously, the drive assembly drives the transmission assembly and transmission mechanism to operate. The transmission assembly drives the connected conveying block 21 to rotate at a constant speed in the conveying chamber 8. The rotation of the conveying block 21 causes the conveying trough 22 to rotate intermittently to the bottom of the discharge pipe 7, allowing the raw materials to fall into the conveying trough 22. The raw materials then fall into the discharge port 10 at the bottom as the conveying block 21 rotates. During this process, the conveying block 21 can... Raw materials are intermittently and quantitatively conveyed through the conveying trough 22, allowing them to fall intermittently and quantitatively into the screening frame 17. This, combined with the screening frame 17, improves the screening quality and prevents insufficient material flow and blockage of the screening frame 17 caused by screening too much material at once. The qualified raw materials fall into the collection trough at the bottom. The transmission mechanism drives the slider 16 to slide back and forth. During the back and forth sliding of the slider 16, the screening frame 17 on one side shakes back and forth. The back and forth shaking of the screening frame 17 can cause the raw materials falling into the screening trough 19 to shake, thereby improving the screening quality and efficiency of the raw materials.
[0019] As an embodiment of the present invention, the driving assembly includes a driving component 4, which is mounted on the housing 3. A driving shaft 5 is mounted on the output end of the driving component 4. The end of the driving shaft 5 away from the driving component 4 passes through the housing 3, and a stirring rod 6 is mounted on the driving shaft 5.
[0020] In this embodiment, the driving component 4 drives the connected driving shaft 5 to rotate, and the rotation of the driving shaft 5 drives the connected stirring rod 6 to rotate. The rotation of the stirring rod 6 stirs the raw material, improving its fluidity and preventing it from clumping. The driving shaft 5 simultaneously drives the transmission assembly and the transmission mechanism to operate. The transmission assembly drives the connected conveying block 21 to rotate at a constant speed in the conveying chamber 8. The rotation of the conveying block 21 causes the conveying trough 22 to rotate intermittently to the bottom of the discharge pipe 7, allowing the raw material to fall into the conveying trough 22. The raw material then rotates with the conveying block 21 to the discharge port 10 at the bottom. During the process of falling, the conveying block 21 can intermittently and quantitatively convey the raw material through the conveying trough 22, so that the raw material falls intermittently and quantitatively into the screening frame 17. In conjunction with the screening frame 17, the raw material is screened, which improves the screening quality and avoids insufficient flow of raw material caused by screening too much raw material at one time, which would cause the screening frame 17 to become blocked. The transmission mechanism drives the slider 16 to slide back and forth. During the back and forth sliding of the slider 16, the screening frame 17 on one side is driven to shake back and forth. The back and forth shaking of the screening frame 17 can drive the raw material falling into the screening trough 19 to shake, thereby improving the screening quality and efficiency of the raw material.
[0021] Furthermore, the driving component 4 can be a stepper motor or a servo motor, etc., which will not be described in detail here.
[0022] As an embodiment of the present invention, the transmission assembly includes a driven shaft 9, one end of which is rotatably connected to the vertical plate 2, and the other end extends into the conveying cavity 8 and is fixedly connected to the conveying block 21. The driven shaft 9 is rotatably connected to the side wall of the conveying cavity 8. A connecting unit 11 is installed on the drive shaft 5, and the end of the connecting unit 11 away from the drive shaft 5 is connected to the driven shaft 9.
[0023] In this embodiment, the drive shaft 5 rotates, driving the driven shaft 9 connected to it to rotate via the connecting unit 11. During the uniform rotation of the driven shaft 9, the conveying block 21 at one end rotates uniformly in the conveying chamber 8. The rotation of the conveying block 21 causes the conveying trough 22 to rotate intermittently to the bottom of the discharge pipe 7, allowing the raw material to fall into the conveying trough 22. The raw material then falls into the discharge port 10 at the bottom as the conveying block 21 rotates. During this process, the conveying block 21 can intermittently and quantitatively convey the raw material through the conveying trough 22, allowing the raw material to fall intermittently and quantitatively into the screening frame 17. This, combined with the screening frame 17, improves the screening quality and avoids insufficient flow of raw material caused by screening too much raw material at once, thus preventing the screening frame 17 from becoming clogged and improving the practicality of the device.
[0024] Furthermore, the connecting unit 11 can be a gear set or a worm gear and worm wheel combination, which will not be described in detail here.
[0025] As an embodiment of the present invention, the transmission mechanism includes a turntable 12, which is mounted on a drive shaft 5. A guide rod 14 is eccentrically mounted on the turntable 12. A guide plate 13 is provided on one side of the turntable 12, and a guide groove is provided on the guide plate 13. The end of the guide rod 14 away from the turntable 12 extends into the guide groove. A crossbar 15 is mounted on one side of the guide plate 13, and the end of the crossbar 15 away from the guide plate 13 is connected to the slider 16.
[0026] In this embodiment, the drive shaft 5 rotates, causing the turntable 12 to rotate. The rotation of the turntable 12 causes the guide rod 14 connected to it to perform a circular motion. During this process, the guide rod 14, through its cooperation with the guide groove, causes the guide plate 13 to move laterally back and forth. The guide plate 13 causes the slider 16 at one end of the crossbar 15 to slide back and forth. During the back and forth sliding of the slider 16, the screening frame 17 on one side is driven to shake back and forth. The back and forth shaking of the screening frame 17 can cause the raw material falling into the screening trough 19 to shake, thereby improving the screening quality and efficiency of the raw material.
[0027] The working principle of this utility model is as follows: When screening the raw materials, the driving component 4 drives the driving shaft 5 connected to it to rotate. The rotation of the driving shaft 5 drives the stirring rod 6 connected to it to rotate. The rotation of the stirring rod 6 stirs the raw materials, improving their fluidity and preventing them from clumping. The rotation of the driving shaft 5 drives the driven shaft 9 connected to it to rotate through the connecting unit 11. During the uniform rotation of the driven shaft 9, the conveying block 21 at one end rotates uniformly in the conveying chamber 8. The rotation of the conveying block 21 causes the conveying trough 22 to rotate intermittently to the bottom of the discharge pipe 7, allowing the raw materials to fall into the conveying trough 22. The raw materials then fall into the discharge port 10 at the bottom as the conveying block 21 rotates. During this process, the conveying block 21 can be intermittently moved through the conveying trough 22. The material is fed in a quantity that allows it to fall intermittently and quantitatively into the screening frame 17. This, combined with the screening frame 17, improves the screening quality and prevents insufficient material flow that could cause blockage in the screening frame 17 due to excessive material being screened at once. The drive shaft 5 rotates, causing the turntable 12 to rotate. The turntable 12 rotates, causing the guide rod 14 connected to it to move in a circular motion. During this process, the guide rod 14, in cooperation with the guide groove, drives the guide plate 13 to move laterally back and forth. The guide plate 13 drives the slider 16 at one end of the crossbar 15 to slide back and forth. During the back and forth sliding of the slider 16, the screening frame 17 on one side moves back and forth. The back and forth movement of the screening frame 17 can cause the material falling into the screening trough 19 to move, thereby improving the screening quality and efficiency of the material.
[0028] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
[0029] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A raw material screening device for latex production, comprising a support plate, characterized in that, A vertical plate is mounted on the support plate. A box is mounted on the end of the vertical plate away from the support plate. A stirring rod is installed in the box. A discharge pipe is installed at the bottom of the box. The end of the discharge pipe away from the box is connected to a conveying chamber. A conveying block is installed in the conveying chamber. The conveying block slides against the conveying chamber. A conveying groove is opened on the conveying block. A discharge port is opened at the bottom of the conveying chamber. A sliding groove is opened on the support plate. A slider is slidably installed in the sliding groove. A screening frame is installed on the slider. A screening groove and a collection chamber are set in the screening frame. A connecting hole is opened on the bottom wall of the screening groove. The connecting hole communicates with the collection chamber. A drive assembly is installed on the box. The stirring rod is connected to the drive assembly. A transmission assembly is installed on the vertical plate. One end of the transmission assembly is connected to the drive assembly. The other end of the transmission assembly is connected to the conveying block. A connecting mechanism is installed on the slider. The end of the connecting mechanism away from the slider is connected to the drive assembly.
2. The raw material screening device for latex production according to claim 1, characterized in that, The drive assembly includes a drive component, which is mounted on the housing. A drive shaft is mounted on the output end of the drive component, and the end of the drive shaft away from the drive component passes through the housing. A stirring rod is mounted on the drive shaft.
3. The raw material screening device for latex production according to claim 2, characterized in that, The transmission assembly includes a driven shaft, one end of which is rotatably connected to the vertical plate, and the other end extends into the conveying cavity and is fixedly connected to the conveying block. The driven shaft is rotatably connected to the side wall of the conveying cavity. A connecting unit is installed on the drive shaft, and the end of the connecting unit away from the drive shaft is connected to the driven shaft.
4. The raw material screening device for latex production according to claim 2, characterized in that, The connecting mechanism includes a turntable mounted on a drive shaft. A guide rod is eccentrically mounted on the turntable. A guide plate is provided on one side of the turntable, and a guide groove is formed on the guide plate. The end of the guide rod away from the turntable extends into the guide groove. A crossbar is installed on one side of the guide plate, and the end of the crossbar away from the guide plate is connected to the slider.
5. The raw material screening device for latex production according to claim 2, characterized in that, The driving component is a stepper motor.