Raw material screening device for plastic product production

Abstract

The utility model discloses a raw material screening device for plastic product production, which relates to the technical field of plastic product production and comprises a bottom plate, a screening box is fixedly mounted at the top of the bottom plate, a first sliding rod is fixedly mounted on the inner wall of the screening box, a screening groove is slidably connected to the first sliding rod, and a screening component is connected to one side of the bottom of the screening groove. A cleaning assembly is installed on the top of the screening groove. The cleaning assembly comprises a first motor, the output end of the first motor is connected with a threaded rod, the threaded rod is rotationally arranged on one side of the top of the screening groove, a second sliding rod is fixedly installed on the other side of the top of the screening groove, the second sliding rod is connected with a cleaning plate in a sliding mode, and the cleaning plate is spirally connected with the threaded rod. The screening groove is controlled by the screening assembly to vibrate so as to screen the plastic raw materials, the plastic raw materials in the screening groove are fully cleaned through a cleaning plate in the cleaning assembly after screening is completed, and raw material residues are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic product production, in particular to a raw material screening device for plastic product production. Background Art

[0002] The plastic product production industry has been seeking ways to improve production efficiency and product quality. In this field, the screening of plastic particles is one of the key steps in the production process, usually used to screen and separate plastic particles of different sizes for the manufacture of different types of products.

[0003] The Chinese utility model patent with the patent application number 202322947056.5 provides a raw material screening device for plastic product production. Through the cooperation of components such as an electric push rod, a linkage gear, a bidirectional ball screw, and a material sweeping plate, when cleaning the plastic raw materials on the screening plate, the driving gear and the linkage gear cooperate to drive the bidirectional ball screw to rotate, driving the material sweeping plate to clean the plastic particles on the screening plate.

[0004] However, it is found in the use process of the above equipment that when the driving gear rotates, the driving gear will control the screening rotating rod to drive the eccentric cam to rotate, thereby pushing the screening plate to move up and down. As a result, there is an easy gap between the material sweeping plate and the screening plate during the movement, leading to the situation that some plastic particles cannot be cleaned into the material guiding inclined plate. Summary of the Utility Model

[0005] Aiming at the deficiencies of the prior art, the utility model provides a raw material screening device for plastic product production, which solves the problem in the background art that when the driving gear rotates, the driving gear will control the screening rotating rod to drive the eccentric cam to rotate, thereby pushing the screening plate to move up and down, and further causing an easy gap between the material sweeping plate and the screening plate during the movement, resulting in some plastic particles not being able to be cleaned into the material guiding inclined plate.

[0006] To achieve the above purposes, the utility model is realized through the following technical solutions: A raw material screening device for plastic product production, including a bottom plate, a screening box is fixedly installed on the top of the bottom plate, a discharge port is opened on one side of the screening box, a discharge plate is fixedly connected to the bottom of the discharge port, a first collection tank is placed below one end of the discharge plate, a second collection tank is slidably arranged at the inner bottom of the screening box, a first sliding rod is fixedly installed on the inner wall of the screening box, a screening slot is slidably connected to the first sliding rod, a screening moving component is connected to one side of the bottom of the screening slot, and a cleaning component is installed on the top of the screening slot;

[0007] The cleaning assembly includes a first motor, the output end of the first motor is connected to a threaded rod, the threaded rod is rotatably arranged on one side of the top of the screening tank, a second sliding rod is fixedly installed on the other side of the top of the screening tank, the second sliding rod is arranged parallel to the threaded rod, a cleaning plate is slidably connected to the second sliding rod, and the cleaning plate is in screw connection with the threaded rod.

[0008] Preferably, a screen is fixedly arranged at the bottom of the screening tank, a baffle is arranged on one side of the screening tank close to the discharge port, convex blocks are arranged on both sides of the baffle, and the baffle is connected to the screening tank by mortise and tenon through the convex blocks.

[0009] Preferably, a feed port is opened at the top of the screening box, and one end of the bottom of the feed port is closer to the top of the screening tank.

[0010] Preferably, the screening moving assembly includes a connecting frame, both ends of the connecting frame are fixed at the bottom of the screening tank, a moving groove is opened in the middle of the connecting frame, and the moving groove is arranged perpendicular to the connecting frame.

[0011] Preferably, a driving rod is slidably connected in the middle of the moving groove, the diameter of the driving rod is the same as the width of the moving groove, the driving rod is fixed at one side edge of the turntable, and the turntable is connected to the output end of the second motor.

[0012] Preferably, a spring is arranged on the first sliding rod, and both ends of the spring are respectively connected to the inner walls of the screening tank and the screening box.

[0013] The utility model provides a raw material screening device for plastic product production. It has the following beneficial effects:

[0014] (1) By arranging the screening tank, the utility model controls the screening tank to vibrate through the screening moving assembly to screen the plastic raw materials, and after the screening is completed, the cleaning plate in the cleaning assembly is used to fully clean the plastic raw materials in the screening tank, avoiding raw material residue.

[0015] (2) By using mortise and tenon to connect the baffle, the baffle is used to block the plastic raw materials, avoiding the plastic raw materials from separating from the screening tank during screening, and at the same time, it is convenient to remove the baffle after screening, so as to clean the plastic raw materials in the screening tank.

[0016] (3) By arranging a spring on the first sliding rod, the screening moving assembly is used to control the screening tank to move along the first sliding rod, and the spring can absorb and relieve the impact force generated during the movement of the screening tank, reducing the influence of vibration on the connection between the screening tank and the screening moving assembly.

[0017] Thus, when the driving gear rotates, the driving gear controls the screening rod to drive the eccentric cam to rotate, thereby pushing the screening plate to move up and down. As a result, there is an easy gap between the sweeping plate and the screening plate during the movement, leading to the problem that some plastic particles cannot be cleaned into the guide chute. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 FIG. is a schematic diagram showing the overall structure of the present invention;

[0019] Figure 2 For the present invention Figure 1 FIG. is a schematic diagram showing the internal structure of the screening box in the present invention;

[0020] Figure 3 For the present invention Figure 2 FIG. is a schematic diagram showing the structure of the screening groove in the present invention;

[0021] Figure 4 For the present invention Figure 3 FIG. is a schematic diagram showing the structure of the cleaning component in the present invention;

[0022] Figure 5 For the present invention Figure 3 FIG. is a schematic diagram showing the structure of the screening moving component in the present invention.

[0023] In the figure, 1, bottom plate; 2, screening box; 21, feeding port; 22, second collection tank; 23, discharging port; 24, discharging plate; 25, first sliding rod; 251, spring; 3, first collection tank; 4, screening groove; 41, baffle; 42, screen; 5, screening moving component; 51, second motor; 52, turntable; 53, driving rod; 54, connecting frame; 55, moving groove; 6, cleaning component; 61, first motor; 62, threaded rod; 63, cleaning plate; 64, second sliding rod. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0025] Embodiment 1:

[0026] Please refer to Figures 1-4, a raw material screening device for plastic product production, including a bottom plate 1. A screening box 2 is fixedly installed on the top of the bottom plate 1. A discharge port 23 is opened on one side of the screening box 2. A discharge plate 24 is fixedly connected to the bottom of the discharge port 23. A first collection tank 3 is placed below one end of the discharge plate 24. A second collection tank 22 is slidably arranged at the inner bottom of the screening box 2. A first slide bar 25 is fixedly installed on the inner wall of the screening box 2. A screening tank 4 is slidably connected to the first slide bar 25. A screening component 5 is connected to one side of the bottom of the screening tank 4. A cleaning component 6 is installed on the top of the screening tank 4;

[0027] The cleaning component 6 includes a first motor 61. The output end of the first motor 61 is connected to a threaded rod 62. The threaded rod 62 is rotatably arranged on one side of the top of the screening tank 4. A second slide bar 64 is fixedly installed on the other side of the top of the screening tank 4. The second slide bar 64 is arranged parallel to the threaded rod 62. A cleaning plate 63 is slidably connected to the second slide bar 64. The cleaning plate 63 is helically connected to the threaded rod 62;

[0028] A screen 42 is fixedly arranged at the bottom of the screening tank 4. A baffle 41 is arranged on one side of the screening tank 4 close to the discharge port 23. Protrusions are arranged on both sides of the baffle 41. The baffle 41 is mortise-and-tenon connected to the screening tank 4 through the protrusions.

[0029] Specifically, by setting the screening tank 4, the screening tank 4 is used to screen plastic raw materials. A number of small pores are provided on the screen 42 arranged at the bottom of the screening tank 4, which can block the larger particle raw materials in the plastic raw materials. The raw materials with smaller particles fall into the second collection tank 22 at the bottom of the screening box 2 through the small pores on the screen 42. The screening component 5 can be used to accelerate the screening of the plastic raw materials in the screening tank 4. The baffle 41 mortise-and-tenon connected to one side of the screening tank 4 can block the plastic raw materials in the screening tank 4 to prevent the plastic raw materials from falling out of the screening tank 4 during screening. The mortise-and-tenon connection method facilitates the user to easily disassemble and install the baffle 41 when needed;

[0030] After the screening is completed, the user can remove the baffle 41 from the screening tank 4, so that the screening tank 4 is connected to the discharge plate 24, which is convenient for the cleaning component 6 to discharge the remaining larger particle raw materials in the screening tank 4 along the discharge plate 24 and into the first collection tank 3;

[0031] The cleaning component 6 is arranged on the screening tank 4, and the cleaning plate 63 is always in contact with the surface of the screen 42, so as to reduce the influence of the screening component 5 on the cleaning component 6. During cleaning, the first motor 61 in the cleaning component 6 drives the threaded rod 62 to rotate. By using the spiral connection between the threaded rod 62 and the cleaning plate 63, the cleaning plate 63 can move along the second sliding rod 64. The bottom of the cleaning plate 63 is in contact with the screen 42, so that when the cleaning plate 63 moves, it can clean the plastic raw materials on the screen 42. At the same time, the bottom of the cleaning plate 63 is in contact with the inner wall of the screening tank 4, avoiding omission during cleaning, so as to completely clean the plastic raw materials inside the screening tank 4 and prevent the situation that some plastic raw materials are not cleaned.

[0032] Embodiment 2:

[0033] To accelerate the screening of the screening tank 4, the screening component 5 is used to control the screening tank 4 to quickly reciprocate on the first sliding rod 25. Please refer to Figures 1-5 , on the basis of Embodiment 1, a feed inlet 21 is provided at the top of the screening box 2, and the bottom end of the feed inlet 21 is relatively close to the top of the screening tank 4;

[0034] The screening component 5 includes a connecting frame 54. The two ends of the connecting frame 54 are fixed to the bottom of the screening tank 4. A moving groove 55 is provided in the middle of the connecting frame 54, and the moving groove 55 is perpendicular to the connecting frame 54;

[0035] A driving rod 53 is slidably connected in the middle of the moving groove 55. The diameter of the driving rod 53 is the same as the width of the moving groove 55. The driving rod 53 is fixed to one side edge of the turntable 52, and the turntable 52 is connected to the output end of the second motor 51;

[0036] A spring 251 is arranged on the first sliding rod 25, and the two ends of the spring 251 are respectively connected to the inner walls of the screening tank 4 and the screening box 2.

[0037] Specifically, the bottom of the feed inlet 21 is relatively close to the screening tank 4, which is convenient for the plastic raw materials to fall more accurately into the screening tank 4 when falling from the feed inlet 21, and reduces the phenomenon of plastic raw materials splashing due to a large drop;

[0038] In the screening movement assembly 5, the second motor 51 is utilized to drive the turntable 52 to rotate, thereby driving the driving rod 53 at the edge of the turntable 52 to rotate. When the driving rod 53 rotates along the turntable 52, the driving rod 53 moves along the moving groove 55, and simultaneously pushes the connecting frame 54 to move along the first sliding rod 25. With the continuous rotation of the driving rod 53 and the fixed connection between the connecting frame 54 and the screening groove 4, when the connecting frame 54 moves, the screening groove 4 is controlled to reciprocate along the first sliding rod 25. The continuous reciprocating motion enables the plastic raw materials in the screening groove 4 to be fully turned and separated, and thus the smaller particle plastic raw materials can quickly pass through the screen 42, accelerating the screening efficiency;

[0039] When the screening movement assembly 5 continuously controls the screening groove 4 to move along the first sliding rod 25, the screening groove 4 continuously squeezes and stretches the springs 251 on both sides of it. The springs 251 can absorb and relieve the impact force generated during the movement of the screening groove 4, reducing the influence of vibration on the overall structure of the screening movement assembly 5 and avoiding the phenomenon of fracture at the connection between the connecting frame 54 and the screening groove 4.

[0040] Working principle: When the equipment is in use, the user puts the plastic raw materials into the feed inlet 21. The raw materials enter the screening groove 4 through the feed inlet 21. The second motor 51 in the screening movement assembly 5 is used to drive the turntable 52 to rotate, and the driving rod 53 on the turntable 52 is used to drive the connecting frame 54 to control the screening groove 4 to reciprocate along the first sliding rod 25. During the continuous reciprocating motion, the smaller particle plastic raw materials in the screening groove 4 can quickly pass through the screen 42 and fall into the second collection tank 22, while the larger particle plastic raw materials stay on the screen 42;

[0041] After the screening is completed, the user removes the baffle 41 from the screening groove 4, and the first motor 61 in the cleaning assembly 6 is used to drive the threaded rod 62 to rotate, thereby controlling the cleaning plate 63 screwed to it to move along the second sliding rod 64, facilitating the cleaning plate 63 to clean the larger particle plastic raw materials on the screen 42, enabling the larger particle plastic raw materials to enter the discharge port 23 and fall along the discharge plate 24 into the first collection tank 3 for collection.

[0042] The foregoing has shown and described the basic principles, main features and advantages of the present invention. For a person skilled in the art, it is obvious that the present invention is not limited to the details of the above-described exemplary embodiments, and without departing from the spirit or basic characteristics of the present invention, the present invention can be implemented in other specific forms. Therefore, in any aspect, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, it is intended to embrace all changes that fall within the meaning and scope of the equivalent elements of the claims in the present invention. Any reference signs in the claims should not be construed as limiting the claims concerned.

[0043] In addition, it should be understood that although this specification is described in terms of embodiments, not every embodiment contains only one independent technical solution. This narrative manner of the specification is only for clarity. Those skilled in the art should regard 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 plastic product production, comprising a bottom plate (1), a screening box (2) is fixedly installed on the top of the bottom plate (1), a discharge port (23) is formed on one side of the screening box (2), a discharge plate (24) is fixedly connected to the bottom of the discharge port (23), a first collection tank (3) is placed below one end of the discharge plate (24), and a second collection tank (22) is slidably arranged at the inner bottom of the screening box (2), characterized in that: A first sliding rod (25) is fixedly installed on the inner wall of the screening box (2). A screening groove (4) is slidably connected to the first sliding rod (25). A screening movement assembly (5) is connected to one side of the bottom of the screening groove (4). A cleaning assembly (6) is installed on the top of the screening groove (4). The cleaning assembly (6) includes a first motor (61). The output end of the first motor (61) is connected to a threaded rod (62). The threaded rod (62) is rotatably arranged on one side of the top of the screening groove (4). A second sliding rod (64) is fixedly installed on the other side of the top of the screening groove (4). The second sliding rod (64) is arranged parallel to the threaded rod (62). A cleaning plate (63) is slidably connected to the second sliding rod (64). The cleaning plate (63) is helically connected to the threaded rod (62).

2. The raw material screening device for plastic product production according to claim 1, characterized in that: A screen (42) is fixedly arranged at the bottom of the screening groove (4). A baffle (41) is arranged on one side of the screening groove (4) close to the discharge port (23). Protrusions are arranged on both sides of the baffle (41). The baffle (41) is tenon-mortise connected to the screening groove (4) through the protrusions.

3. The raw material screening device for plastic product production according to claim 1, wherein: A feed inlet (21) is formed in the top of the screening box (2). One end of the bottom of the feed inlet (21) is closer to the top of the screening groove (4).

4. The raw material screening device for plastic product production according to claim 1, wherein: The screening movement assembly (5) includes a connecting frame (54). Both ends of the connecting frame (54) are fixed to the bottom of the screening groove (4). A moving groove (55) is formed in the middle of the connecting frame (54). The moving groove (55) is arranged perpendicular to the connecting frame (54).

5. The raw material screening device for plastic product production according to claim 4, wherein: A driving rod (53) is slidably connected to the middle of the moving groove (55). The diameter of the driving rod (53) is the same as the width of the moving groove (55). The driving rod (53) is fixed to the side edge of a turntable (52). The turntable (52) is connected to the output end of a second motor (51).

6. The raw material screening device for plastic product production according to claim 1, characterized in that: A spring (251) is arranged on the first sliding rod (25). Both ends of the spring (251) are respectively connected to the inner wall of the screening groove (4) and the screening box (2).

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