Resin screening device
By combining drying, stirring, and screening mechanisms, the problems of resin adhesion and low efficiency during the screening process are solved, achieving efficient resin dispersion and classified collection.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-26
- Publication Date
- 2026-04-03
AI Technical Summary
Resin tends to stick together during the screening process, leading to clogging and low efficiency in the screening equipment. Traditional static screening methods cannot effectively solve this problem.
The system employs a drying and stirring mechanism and a screening mechanism. A motor-driven screw drives a rack and gear to rotate the stirring blades and heat the heating strips. Combined with the vibration of the screening plate, this enables dynamic screening, disperses the resin, and accelerates the screening process.
It effectively disperses resin adhesion, improves screening efficiency, reduces equipment clogging, and achieves efficient resin particle classification and collection.
Smart Images
Figure CN224074756U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of resin screening equipment, specifically, it relates to a resin screening device. Background Technology
[0002] Resin generally refers to an organic polymer that softens or melts when heated, tends to flow under external force when softened, and is solid, semi-solid, or sometimes liquid at room temperature. In a broader sense, any polymer compound that can be used as a raw material for processing plastic products is called resin. During resin production, because resin materials of different particle sizes have different uses, it is often necessary to screen resins to obtain resin groups with different particle sizes.
[0003] The adhesion phenomenon of resins mainly stems from the physicochemical properties of their polymer chains. When resin particles are exposed to a humid environment, moisture penetrates into the interparticle spaces through capillary action, forming a water film on the surface and disrupting the original powder flowability. Hydrogen bonding between water molecules and the polar groups of the resin (such as hydroxyl and carboxyl groups) significantly enhances the adhesion between particles. Simultaneously, high temperatures accelerate hydrolysis, leading to the precipitation of low-molecular-weight oligomers and the formation of a cemented layer. Furthermore, particle rearrangement caused by transport vibrations or prolonged static storage further amplifies the agglomeration effect, transforming the resin from a fluid state to a dense, blocky structure. This adhesion not only clogs the sieve pores during screening (especially significantly impacting micron-level fine screening processes) but also causes a sudden increase in the load on the screening equipment, leading to motor overheating or wear of vibrating components. Such adhered resin greatly affects subsequent screening processes, requiring repeated screening or manual intervention. Additionally, traditional resin screening methods use fixed sieve plates, i.e., static screening, which prevents resin particles from actively moving on the sieve surface, resulting in low screening efficiency.
[0004] Based on this, the present invention provides a resin screening device to solve the problems existing in the prior art. Utility Model Content
[0005] In view of this, the main objective of this utility model is to provide a resin screening device to solve the problems of resin sticking together during the screening process and low efficiency of static screening in traditional resin screening methods.
[0006] To achieve the above objectives, the technical solution of this utility model is implemented as follows:
[0007] A resin screening device includes a housing and supporting legs, wherein a drying and stirring mechanism and a screening mechanism are also provided inside the housing.
[0008] The drying and stirring mechanism includes a stirring box disposed outside the main body, a stirring blade disposed inside the stirring box, and a rotating shaft disposed at the center of the stirring blade;
[0009] The screening mechanism includes a first screening plate and a second screening plate that are inclinedly arranged inside the box.
[0010] In a preferred embodiment, the drying and stirring mechanism further includes a motor disposed outside the housing, the output end of the motor is connected to a lead screw, a threaded block is threadedly connected to the lead screw, a rack is connected to one side of the threaded block, and the rack meshes with a gear disposed at the lower end of the rotating shaft.
[0011] In a preferred embodiment, the threaded block is provided with a second protrusion, which matches the first protrusion provided at the bottom end of the first screening plate.
[0012] In a preferred embodiment, the number of the first bumps is several, and the first bumps are evenly and equidistantly distributed at the bottom end of the first screening plate.
[0013] In a preferred embodiment, a heating strip is provided in the inner wall interlayer of the mixing tank; a feeding pipe is provided at the top of the mixing tank; and a slot is provided on the outer wall of the bottom end of the mixing tank near the tank body, and a discharge valve is provided in the slot.
[0014] In a preferred embodiment, the bottom end of the box is provided with inclined guide plates, and a discharge chute is formed between the two guide plates, which communicates with the bottom wall of the box.
[0015] In a preferred embodiment, the screening mechanism further includes a movable slide groove formed in the inner wall of the box, a slide rod connected in the movable slide groove, a slider slidably connected on the slide rod, a spring connected to the top of the slider, the end of the spring away from the slider being connected to the top of the inner wall of the movable slide groove, and one outer wall of the first screening plate being connected to the slider.
[0016] In a preferred embodiment, the first screening plate is disposed above the second screening plate, and a connecting rod is provided between the first screening plate and the second screening plate.
[0017] In a preferred embodiment, the mesh size of the second screening plate is smaller than that of the first screening plate.
[0018] In a preferred embodiment, a discharge hole is provided on one side wall of the box, the discharge hole is matched with the bottom end position of the first screening plate and the second screening plate, and a discharge plate is provided on the discharge hole.
[0019] Compared with the prior art, the present invention provides a resin screening device, which has the following beneficial effects:
[0020] 1. Through the setting of the drying and stirring mechanism, the motor drives the lead screw to rotate, which in turn drives the threaded block to move. This in turn drives the rack to move, which in turn drives the gear to rotate. As the gear rotates, it drives the rotating shaft and stirring blades to rotate. The stirring blades can stir, flow and impact the resin. At the same time, the heating strip can dry the resin. The combination of the two can disperse the bonded resin, thereby reducing the impact on subsequent screening and thus speeding up the efficiency of subsequent screening work.
[0021] 2. Through the design of the screening mechanism, the second protrusion presses against the first protrusion, thereby causing the first and second screening plates to move up and down and vibrate, achieving dynamic screening. The resin can be screened using the first and second screening plates, thus accelerating the screening efficiency. The movable door on one side of the housing allows for the centralized collection of unscreened resin accumulated on the screening plates, facilitating resin classification and collection based on particle size. This solves the problems of resin adhesion and low efficiency in static screening methods inherent in traditional resin screening processes. Attached Figure Description
[0022] 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 from these drawings without creative effort.
[0023] Figure 1 This is a schematic diagram of the overall structure of the resin screening device of this utility model;
[0024] Figure 2 This is a schematic diagram of the internal structure of the resin screening device of this utility model;
[0025] Figure 3 This is a cross-sectional view of the drying and stirring mechanism of this utility model;
[0026] Figure 4 This is a schematic diagram of the screening mechanism of this utility model;
[0027] Figure 5 This is a partial structural schematic diagram of the screening mechanism of this utility model.
[0028] [Explanation of Key Component Symbols]
[0029] 1. Box body; 11. Discharge chute; 12. Movable chute; 2. Support leg; 3. Drying and mixing mechanism; 31. Support plate; 32. Motor; 33. Lead screw; 34. Threaded block; 35. Rack; 36. Mixing box; 37. Heating bar; 38. Rotating shaft; 39. Mixing blade; 310. Gear; 311. Discharge valve; 312. Feeding pipe; 4. Screening mechanism; 41. Sliding rod; 42. Sliding block; 43. Spring; 44. First screening plate; 45. Connecting rod; 46. Second screening plate; 47. First protrusion; 48. Second protrusion; 5. Discharge plate; 6. Acrylic plate. Detailed Implementation
[0030] The structure of the resin screening device will be further described in detail below with reference to the accompanying drawings and embodiments of the present invention.
[0031] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.
[0032] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments as described in this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.
[0033] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented, for example, in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.
[0034] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 9 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.
[0035] As per the instruction manual Figures 1-5 As shown, this utility model provides a technical solution:
[0036] A resin screening device includes a housing 1, with a support leg 2 at the bottom of the housing 1, and a drying and stirring mechanism 3 and a screening mechanism 4 integrated inside the housing 1.
[0037] The drying and stirring mechanism 3 includes a stirring box 36 installed on the outer wall of the box body 1. A stirring blade 39 is rotatably installed inside the stirring box 36. The stirring blade 39 is used to stir and flow the resin in the stirring box 36, thereby reducing the adhesion of the resin and improving the subsequent screening efficiency. A rotating shaft 38 is provided at the center of the stirring blade 39.
[0038] The screening mechanism 4 includes a first screening plate 44 and a second screening plate 46 that are inclinedly arranged inside the housing 1. Both the first screening plate 44 and the second screening plate 46 are perforated stainless steel meshes, which are used to classify and screen the resin, thereby realizing the screening and classification collection of resins with different particle sizes.
[0039] In a preferred embodiment, such as Figure 3 and Figure 5 As shown, the drying and stirring mechanism 3 also includes a support plate 31 fixedly installed on the outer wall of the box 1. A motor 32 is installed at the top of the support plate 31. A lead screw 33 is connected to the output end of the motor 32. A threaded block 34 is threadedly connected to the outer wall of the lead screw 33. A rack 35 is connected to one side of the outer wall of the threaded block 34. The rack 35 meshes with a gear 310 located at the lower end of the rotating shaft 38.
[0040] In the above description, when the motor 32 is activated, it can drive the lead screw 33 to rotate. During the rotation of the lead screw 33, the threaded block 34 moves left and right. During the left and right movement of the threaded block 34, the rack 35 moves synchronously. During the movement of the rack 35, the rotating shaft 38 can be driven to rotate through the meshing force. During the rotation of the rotating shaft 38, the stirring blade 39 can be driven to stir and flow the resin in the mixing box 36, thereby reducing the adhesion of the resin.
[0041] Specifically, such as Figure 3 and Figure 5 As shown, a second protrusion 48 is also provided on the threaded block 34, and the second protrusion 48 matches with a plurality of first protrusions 47 provided on the first screening plate 44. Therefore, during the left and right movement of the threaded block 34, the second protrusion 48 can be driven to squeeze the first protrusions 47, thereby driving the first screening plate 44 to vibrate up and down, realizing dynamic screening of resin particles.
[0042] Specifically, there are several first protrusions 47, which are evenly and equidistantly distributed at the bottom of the first screening plate 44. The multiple first protrusions 47 can continuously vibrate the first screening plate 44, thereby accelerating the screening efficiency of the resin.
[0043] In a preferred embodiment, such as Figure 1 , Figure 2 and Figure 3 As shown, a heating strip 37 is also installed in the inner wall interlayer of the mixing tank 36. The heating strip 37 is used to heat the resin particles inside the mixing tank 36 to prevent the resin particles from sticking together at low temperatures.
[0044] It should be noted that the heating strip 37 preferably uses a heating wire structure with a copper shell, which is embedded in the interlayer on the side wall of the mixing tank 36 and can be heated by connecting to a power source. Its specific structure is known to those skilled in the art and will not be described in detail here.
[0045] In a preferred embodiment, such as Figure 1 , Figure 2 and Figure 3 As shown, a feeding pipe 312 is provided at the top of the mixing tank 36 for adding resin particles into the mixing tank 36 through the feeding pipe 312. At the same time, a slot is also provided on the outer wall of the bottom end of the mixing tank 36 near the tank body 1, and a discharge valve 311 is installed in the slot to control the flow of resin particles inside the mixing tank 36 into the tank body 1 during use.
[0046] It should be noted that the discharge valve 311 is an electric valve, which can be opened and closed by connecting to a power source. Its specific structure is known to those skilled in the art and will not be described in detail here.
[0047] In a preferred embodiment, such as Figure 1 , Figure 2 and Figure 3 As shown, the bottom of the box 1 is provided with an inclined guide plate 7, and a discharge chute 11 is formed between the two guide plates 7 and communicates with the bottom wall of the box 1, so as to facilitate the discharge and collection of resin particles selected after being filtered by the first screening plate 44 and the second screening plate 46.
[0048] In a preferred embodiment, such as Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the screening mechanism 4 includes a movable slide groove 12 formed on the inner wall of the housing 1. A slide rod 41 is connected to the inner wall of the movable slide groove 12, and a slider 42 is slidably connected to the outer wall of the slide rod 41. A spring 43 is connected to the top of the slider 42, and the end of the spring 43 away from the slider 42 is connected to the top of the inner wall of the movable slide groove 12. When the spring 43 is in its normal state, the first screening plate 44 is located below the movable slide groove 12. When the first screening plate 44 is pressed and moves upward, the spring 43 is compressed. Therefore, after the pressure is removed, the first screening plate 44 can return to its original position under the restoring force of the spring 43.
[0049] Specifically, such as Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the bottom end of the first screening plate 44 is also connected to a connecting rod 45, and the top end of the second screening plate 46 is connected to the bottom end of the connecting rod 45, which is used to connect the first screening plate 44 and the second screening plate 46 through the connecting rod 45.
[0050] Specifically, such as Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the mesh size of the second screening plate 46 is smaller than that of the first screening plate 44, which allows for a second screening of the resin after the initial screening, thereby improving the screening accuracy of the resin.
[0051] In a preferred embodiment, such as Figure 1 and Figure 2As shown, a discharge hole is also provided on one side wall of the box 1. The discharge hole is matched with the bottom position of the first screening plate 44 and the second screening plate 46. A discharge plate 5 is installed on the discharge hole to control the opening and closing of the discharge hole, so as to discharge the resin particles that have not passed the screening.
[0052] In a preferred embodiment, such as Figure 1 As shown, an acrylic plate 6 is also provided on one side opening of the box 1. The acrylic plate 6 is a transparent plate used to observe the screening of internal resin particles.
[0053] In a preferred embodiment, the device further includes a power supply (existing technology, not shown in the figure), which is installed on the housing 1 and is used to supply power to the motor 32, heating bar 37, discharge valve 311, etc.
[0054] The implementation principle of the resin screening device described in this embodiment is as follows:
[0055] First, the heating bar 37 and motor 32 are turned on. The heating bar 37 heats the inside of the mixing tank 36. Then, resin is added to the mixing tank 36. At the same time, the motor 32 starts and drives the lead screw 33 to rotate in both directions. As the lead screw 33 rotates, it drives the threaded block 34 to move back and forth. As the threaded block 34 moves, it drives the rack 35 on one side to move. As the rack 35 moves, it drives the gear 310 that meshes with it to rotate. As the gear 310 rotates, it drives the rotating shaft 38 to rotate. In turn, the rotating shaft 38 drives the stirring blade 39 to rotate. This allows the resin inside the mixing tank 36 to be stirred, agitated, and flowed. This allows the resin to be heated quickly and fully, and at the same time, it disperses the resin. This eliminates the adhesion of the resin before screening, reduces the impact on subsequent screening, and improves the screening quality. Therefore, it eliminates the need for repeated operation by the staff and improves the efficiency of the screening work.
[0056] The dried resin is fed into the box 1 through the discharge port on one side of the mixing tank 36. The resin falls onto the first screening plate 44, which separates larger resin particles. Simultaneously, the movement of the threaded block 34 moves the second protrusion 48 on one side, causing it to contact and press against the first protrusion 47. This pressure causes the first screening plate 44 to move upwards, and the connecting rod 45 simultaneously moves the second screening plate 46. During the movement of the first screening plate 44, the slider 42 is moved... The slide bar 41 moves along the outer wall, simultaneously compressing the spring 43. As the second protrusion 48 continues to move and no longer contacts the first protrusion 47, the spring 43 rebounds and drives the first screening plate 44 and the second screening plate 46 to move downwards. This process is repeated to synchronously drive the first screening plate 44 and the second screening plate 46 to vibrate up and down, thereby accelerating the screening rate of the resin and improving the efficiency of the screening work. Since the first screening plate 44 and the second screening plate 46 are both in an inclined state, the unscreened resin will accumulate on the lower side. Then, the discharge plate 5 on one side of the box 1 can be opened to collect the resin.
[0057] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the scope of protection of the present utility model.
Claims
1. A resin screening device, comprising a housing (1) and supporting legs (2), characterized in that, The box (1) is also equipped with a drying and stirring mechanism (3) and a screening mechanism (4); The drying and stirring mechanism (3) includes a stirring box (36) disposed outside the box body (1), a stirring blade (39) is disposed inside the stirring box (36), and a rotating shaft (38) is disposed at the center of the stirring blade (39); The screening mechanism (4) includes a first screening plate (44) and a second screening plate (46) that are inclinedly arranged inside the housing (1).
2. The resin screening device as described in claim 1, characterized in that, The drying and stirring mechanism (3) also includes a motor (32) located outside the housing (1). The output end of the motor (32) is connected to a lead screw (33). A threaded block (34) is threaded onto the lead screw (33). A rack (35) is connected to one side of the threaded block (34). The rack (35) meshes with a gear (310) located at the lower end of the rotating shaft (38).
3. The resin screening device as described in claim 2, characterized in that, The threaded block (34) is provided with a second protrusion (48), which matches the first protrusion (47) provided at the bottom of the first screening plate (44).
4. The resin screening device as described in claim 3, characterized in that, The number of the first protrusions (47) is several, and the first protrusions (47) are evenly and equally distributed at the bottom end of the first screening plate (44).
5. The resin screening device as described in claim 1, characterized in that, A heating strip (37) is provided in the inner wall interlayer of the mixing tank (36); a feeding pipe (312) is provided at the top of the mixing tank (36); and a slot is provided on the outer wall of the bottom end of the mixing tank (36) near the tank body (1), and a discharge valve (311) is provided in the slot.
6. The resin screening device as described in claim 1, characterized in that, The bottom end of the box (1) is provided with an inclined guide plate (7), and a discharge chute (11) is formed between the two guide plates (7) and communicates with the bottom wall of the box (1).
7. The resin screening device as described in claim 1, characterized in that, The screening mechanism (4) further includes a movable slide groove (12) opened in the inner wall of the box (1). A slide rod (41) is connected in the movable slide groove (12). A slider (42) is slidably connected on the slide rod (41). A spring (43) is connected to the top of the slider (42). The end of the spring (43) away from the slider (42) is connected to the top of the inner wall of the movable slide groove (12). The outer wall of one side of the first screening plate (44) is connected to the slider (42).
8. The resin screening device as described in claim 7, characterized in that, The first screening plate (44) is disposed on the upper side of the second screening plate (46), and a connecting rod (45) is provided between the first screening plate (44) and the second screening plate (46).
9. A resin screening device as described in claim 8, characterized in that, The mesh size of the second screening plate (46) is smaller than that of the first screening plate (44).
10. The resin screening device as described in claim 1, characterized in that, The box (1) is also provided with a discharge hole on one side wall. The discharge hole is matched with the bottom position of the first screening plate (44) and the second screening plate (46), and a discharge plate (5) is provided on the discharge hole.