Screening device for raw materials for injection molding

Abstract

The utility model relates to the technical field of raw material screening, and discloses an injection molding raw material screening device which comprises bases, a shell is arranged on the top of the bases, and the bases are arranged on the two sides of the shell. The feeding assembly is arranged at the top of the base; wherein the feeding assembly comprises a feeding part and a control part; and the screening assembly is arranged at the top of the base. Through the arrangement of the screening assembly, raw materials passing through the first screening plate fall on the top of the second screening plate, raw materials passing through the screening holes fall on the bottom of the shell, the raw materials which do not pass through are discharged out of the shell through the second discharging opening, and part of the raw materials screened by the first screening plate will fall on the top of the guide plate; and finally, under the action of a guide plate, the raw materials fall to the top of a second screening plate for secondary screening, the raw materials passing through the first screening plate are prevented from directly falling to a second discharging opening to be discharged out of the shell, and the effect of guaranteeing the screening quality is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of raw material screening, in particular to a screening device for raw materials used in injection molding. Background Art

[0002] There is a wide variety of core raw materials relied on in the field of injection molding, covering high polymers such as polystyrene, polyethylene, polypropylene, acrylonitrile-butadiene-styrene copolymer, polyamide, polyethylene terephthalate, polycarbonate, phenolic resin, polymethyl methacrylate, polyoxymethylene, polyurethane, and polyphenylene ether. Due to their unique physical and chemical properties, these materials play an irreplaceable role in the injection molding process and are widely used in the manufacture of various plastic products.

[0003] Particularly worth mentioning is that the four major types of resins, namely polystyrene, polyethylene, polypropylene, and ABS, together occupy more than 80% of the injection molding raw material market with their excellent performance and wide applicability, becoming the cornerstone of the industry. Each material has its unique advantages and limitations: for example, polypropylene is known for its light texture, excellent heat resistance, outstanding stress cracking resistance, and long flexural fatigue life. However, its dimensional stability is relatively weak, its rigidity is slightly insufficient, and its performance under extreme climatic conditions needs to be improved. Therefore, in the process of injection molding, accurately selecting the appropriate raw material is of inestimable importance for ensuring the excellent performance of the final product and extending its service life. This not only requires a deep understanding of the physical and chemical properties of each raw material but also requires careful consideration and matching in combination with the design requirements of the specific product and the expected application scenario.

[0004] At present, in the actual application process of the screening device for raw materials used in injection molding, the raw materials to be screened are usually added into the screening mechanism for screening. However, the screening mechanism usually has one or two screening plates. When there is one screening plate, the screening efficiency of the raw materials is limited. When there are two screening plates, a part of the raw materials passing through the first screening plate will directly fall at the discharge port of the second screening plate and be mixed with other raw materials, affecting the final screening quality. Content of the Utility Model

[0005] The purpose of the utility model is to provide a screening device for raw materials used in injection molding, so as to achieve the purpose of solving the problems raised in the above background art.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A screening device for raw materials used in injection molding, including a base, the top of the base is provided with a housing, and the base is arranged on both sides of the housing;

[0007] A feeding assembly, the feeding assembly is arranged on the top of the base;

[0008] Among them, the feeding component includes a feeding part and a control part;

[0009] A screening component, and the screening component is arranged on the top of the base;

[0010] Among them, the screening component includes a screening part and a vibration part.

[0011] Preferably, the feeding part includes a feeding hopper. A partition block is fixedly installed inside the feeding hopper. A first feeding port and a second feeding port are opened inside the feeding hopper. The feeding hopper is fixedly installed on the top of the housing. The feeding hopper is communicated with the inside of the housing. The partition block is arranged between the first feeding port and the second feeding port.

[0012] Preferably, the control part includes a movable plate. A corner plate is fixedly installed on one side of the movable plate. A telescopic rod is fixedly installed on one side of the corner plate. A control switch is fixedly installed in the middle of the housing. An inclined bottom plate is arranged on the top of the housing; the settings of the telescopic rod and the movable plate achieve the effect of automatically controlling the feeding.

[0013] Preferably, the movable plate is movably installed on the top of the housing. The movable plate is arranged at the bottom of the first feeding port. The telescopic rod is fixedly installed inside the housing. The telescopic end of the telescopic rod penetrates through the housing and extends to the outside of the housing. The telescopic rod is electrically connected with the control switch. The inclined bottom plate is fixedly installed at the bottom of the feeding hopper. The inclined bottom plate is arranged at the bottoms of the second feeding port and the partition block.

[0014] Preferably, the screening part includes a shell cover. A paddle wheel is arranged on the top of the base. A first discharge port is opened inside the housing. A first screening plate is fixedly installed inside the housing. One end of the paddle wheel is fixedly installed with a motor; the settings of the paddle wheel and the motor achieve the effect of preventing the raw materials that do not pass through the first screening plate from being blocked at the first discharge port.

[0015] Preferably, the shell cover is fixedly installed on the left side of the housing. The shell cover is arranged on the top of the first discharge port. The paddle wheel is movably installed inside the first discharge port. Both ends of the paddle wheel penetrate through the housing and extend to the inside of the housing. The motor is fixedly installed with the housing. The motor is electrically connected with the control switch.

[0016] Preferably, the vibration part includes a guide plate. A second screening plate is fixedly installed inside the housing. A second discharge port is opened inside the housing. Connecting plates are fixedly installed on both sides of the housing. Springs are linearly and equidistantly fixedly installed on the top of the base. Vibration motors are fixedly installed on both sides of the housing; the settings of the vibration motors and the screening plates achieve the effect of accelerating the screening efficiency of the raw materials.

[0017] Preferably, the guide plate is fixedly installed inside the housing. The guide plate is arranged at the bottom of the first screening plate, the second screening plate is arranged at the bottom of the guide plate, the vibration motor is electrically connected to the control switch, one end of the spring is fixedly installed at the bottom of the connecting plate, and the vibration motor is arranged in the middle of one side of the housing.

[0018] The utility model provides a screening device for raw materials used in injection molding. It has the following beneficial effects:

[0019] (1) By setting the feeding part in the utility model, when the requirements for screening raw materials are relatively high, the raw materials are added into the feeding hopper through the second feeding port. Due to the existence of the partition block, the raw materials fall evenly on the top of the movable plate. When the requirements are relatively low, the raw materials are added into the feeding hopper through the first feeding port. This screening method is faster and achieves the effect of convenient use of the screening machine.

[0020] (2) By setting the screening component in the utility model, the raw materials passing through the first screening plate fall on the top of the second screening plate. The raw materials passing through the sieve holes fall to the bottom of the housing, and the raw materials that do not pass are discharged from the housing through the second discharge port. A part of the raw materials screened by the first screening plate will fall on the top of the guide plate and finally fall on the top of the second screening plate under the action of the guide plate for secondary screening, preventing the raw materials passing through the first screening plate from directly falling at the second discharge port and being discharged from the housing, thus achieving the effect of ensuring the screening quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a schematic structural view of the utility model;

[0022] Figure 2 is an internal structural view of the utility model;

[0023] Figure 3 is a top view of the utility model;

[0024] Figure 4 is a right view of the utility model.

[0025] In the figure: 1 base, 2 housing, 3 feeding assembly, 31 feeding part, 311 feeding hopper, 312 partition block, 313 first feeding port, 314 second feeding port, 32 control part, 321 movable plate, 322 angle plate, 323 telescopic rod, 324 control switch, 325 inclined bottom plate, 4 screening assembly, 41 screening part, 411 housing cover, 412 paddle wheel, 413 first discharge port, 414 first screening plate, 415 motor, 42 vibrating part, 421 guide plate, 422 second screening plate, 423 second discharge port, 424 connecting plate, 425 spring, 426 vibration motor. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with 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. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0027] Examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are intended to explain the present invention, and should not be construed as a limitation to the present invention.

[0028] Embodiment 1

[0029] A preferred embodiment of a screening device for raw materials used in injection molding provided by the present invention is as Figures 1-4 shown: A screening device for raw materials used in injection molding includes a base 1, and a housing 2 is provided on the top of the base 1. The base 1 is provided on both sides of the housing 2;

[0030] A feeding assembly 3 is provided on the top of the base 1;

[0031] Among them, the feeding assembly 3 includes a feeding part 31 and a control part 32;

[0032] The feeding part 31 includes a feeding hopper 311. An isolation block 312 is fixedly installed inside the feeding hopper 311. A first feeding port 313 and a second feeding port 314 are opened inside the feeding hopper 311. The feeding hopper 311 is fixedly installed on the top of the housing 2, and the feeding hopper 311 is communicated with the inside of the housing 2. The isolation block 312 is arranged between the first feeding port 313 and the second feeding port 314; when the requirements for screening raw materials are relatively high, the raw materials are added into the inside of the feeding hopper 311 through the second feeding port 314. Due to the existence of the isolation block 312, the raw materials fall on the top of the movable plate 321 more evenly. When the requirements are relatively low, the raw materials are added into the inside of the feeding hopper 311 through the first feeding port 313. This screening method is faster;

[0033] The control part 32 includes a movable plate 321. A gusset plate 322 is fixedly installed on one side of the movable plate 321. A telescopic rod 323 is fixedly installed on one side of the gusset plate 322. A control switch 324 is fixedly installed in the middle of the housing 2. An inclined bottom plate 325 is arranged on the top of the housing 2. The movable plate 321 is movably installed on the top of the housing 2. The movable plate 321 is arranged at the bottom of the first feed port 313. The telescopic rod 323 is fixedly installed inside the housing 2. The telescopic end of the telescopic rod 323 penetrates through the housing 2 and extends to the outside of the housing 2. The telescopic rod 323 is electrically connected to the control switch 324. The inclined bottom plate 325 is fixedly installed at the bottom of the feed hopper 311. The inclined bottom plate 325 is arranged at the bottoms of the second feed port 314 and the partition block 312. By starting the telescopic rod 323 through the control switch 324, the gusset plate 322 moves, and the movable plate 321 moves out of the inside of the housing 2, and the raw material enters the inside of the housing 2.

[0034] Embodiment 2

[0035] On the basis of Embodiment 1, a preferred embodiment of the screening device for raw materials used in injection molding provided by the present utility model is as Figures 1-4 shown: a screening assembly 4, and the screening assembly 4 is arranged on the top of the base 1;

[0036] Among them, the screening assembly 4 includes a screening part 41 and a vibration part 42;

[0037] The screening part 41 includes a shell cover 411. A paddle wheel 412 is arranged on the top of the base 1. A first discharge port 413 is opened inside the housing 2. A first screening plate 414 is fixedly installed inside the housing 2. One end of the paddle wheel 412 is fixedly installed with a motor 415. The shell cover 411 is fixedly installed on the left side of the housing 2. The shell cover 411 is arranged on the top of the first discharge port 413. The paddle wheel 412 is movably installed inside the first discharge port 413. Both ends of the paddle wheel 412 penetrate through the housing 2 and extend to the inside of the housing 2. The motor 415 is fixedly installed with the housing 2. The motor 415 is electrically connected to the control switch 324. The raw material falls on the top of the first screening plate 414. The raw material that cannot pass through the sieve holes is discharged from the first discharge port 413 out of the inside of the housing 2. By starting the motor 415, the paddle wheel 412 rotates to push the raw material at the first discharge port 413 to be discharged from the inside of the housing 2 at an accelerated speed;

[0038] The vibrating part 42 includes a guide plate 421. Inside the housing 2, a second screening plate 422 is fixedly installed. Inside the housing 2, a second discharge port 423 is provided. On both sides of the housing 2, connecting plates 424 are fixedly installed. On the top of the base 1, springs 425 are linearly and equidistantly fixedly installed. On both sides of the housing 2, vibration motors 426 are fixedly installed. The guide plate 421 is fixedly installed inside the housing 2. The guide plate 421 is arranged at the bottom of the first screening plate 414. The second screening plate 422 is arranged at the bottom of the guide plate 421. The vibration motors 426 are electrically connected to the control switch 324. One end of the spring 425 is fixedly installed at the bottom of the connecting plate 424. The vibration motors 426 are arranged in the middle of one side of the housing 2. When the vibration motors 426 are started, since the housing 2 and the base 1 are connected by the connecting plates 424 and the springs 425, the entire housing 2 vibrates, accelerating the screening process of the first screening plate 414 and the second screening plate 422. The raw materials passing through the first screening plate 414 fall on the top of the second screening plate 422. The raw materials passing through the sieve holes fall to the bottom of the housing 2. The raw materials that do not pass through are discharged from the second discharge port 423 out of the inside of the housing 2. Part of the raw materials screened by the first screening plate 414 will fall on the top of the guide plate 421 and finally, under the action of the guide plate 421, fall on the top of the second screening plate 422 for secondary screening, preventing the raw materials passing through the first screening plate 414 from directly falling at the second discharge port 423 and being discharged out of the inside of the housing 2.

[0039] During use, when the requirements for screening raw materials are relatively high, the raw materials are added into the inside of the feed hopper 311 through the second feed port 314. Due to the existence of the partition block 312, the raw materials fall relatively evenly on the top of the movable plate 321. When the requirements are relatively low, the raw materials are added into the inside of the feed hopper 311 through the first feed port 313. This screening method is faster. The telescopic rod 323 is started through the control switch 324, the angle plate 322 moves, and the movable plate 321 moves out of the inside of the housing 2. The raw materials enter the inside of the housing 2. The raw materials fall on the top of the first screening plate 414. The raw materials that cannot pass through the sieve holes are discharged from the first discharge port 413 out of the inside of the housing 2. The motor 415 is started, and the paddle wheel 412 rotates to push the raw materials at the first discharge port 413 to be discharged out of the inside of the housing 2 at an accelerated speed. The vibration motors 426 are started. Since the housing 2 and the base 1 are connected by the connecting plates 424 and the springs 425, the entire housing 2 vibrates, accelerating the screening process of the first screening plate 414 and the second screening plate 422. The raw materials passing through the first screening plate 414 fall on the top of the second screening plate 422. The raw materials passing through the sieve holes fall to the bottom of the housing 2. The raw materials that do not pass through are discharged from the second discharge port 423 out of the inside of the housing 2. Part of the raw materials screened by the first screening plate 414 will fall on the top of the guide plate 421 and finally, under the action of the guide plate 421, fall on the top of the second screening plate 422 for secondary screening, preventing the raw materials passing through the first screening plate 414 from directly falling at the second discharge port 423 and being discharged out of the inside of the housing 2.

[0040] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A screening device for raw materials used in injection molding, characterized in that, It includes a base (1), with a housing (2) provided on the top of the base (1), and the base (1) is arranged on both sides of the housing (2); A feeding assembly (3), which is provided on the top of the base (1); Among them, the feeding assembly (3) includes a feeding part (31) and a control part (32); A screening assembly (4), which is provided on the top of the base (1); Among them, the screening assembly (4) includes a screening part (41) and a vibration part (42).

2. The screening device for raw materials for injection molding according to claim 1, wherein: The feeding part (31) includes a feeding hopper (311), with a partition block (312) fixedly installed inside the feeding hopper (311). An inlet one (313) and an inlet two (314) are opened inside the feeding hopper (311). The feeding hopper (311) is fixedly installed on the top of the housing (2), and the feeding hopper (311) is internally connected to the housing (2). The partition block (312) is arranged between the inlet one (313) and the inlet two (314).

3. The screening device for raw materials used in injection molding according to claim 1, wherein: The control part (32) includes a movable plate (321), with an angle plate (322) fixedly installed on one side of the movable plate (321). A telescopic rod (323) is fixedly installed on one side of the angle plate (322). A control switch (324) is fixedly installed in the middle of the housing (2), and an inclined bottom plate (325) is provided on the top of the housing (2).

4. The screening device for raw materials used in injection molding according to claim 3, wherein: The movable plate (321) is movably installed on the top of the housing (2), and the movable plate (321) is arranged at the bottom of the inlet one (313). The telescopic rod (323) is fixedly installed inside the housing (2), and the telescopic end of the telescopic rod (323) penetrates through the housing (2) and extends to the outside of the housing (2). The telescopic rod (323) is electrically connected to the control switch (324). The inclined bottom plate (325) is fixedly installed at the bottom of the feeding hopper (311), and the inclined bottom plate (325) is arranged at the bottom of the inlet two (314) and the partition block (312).

5. The screening device for raw materials used in injection molding according to claim 1, wherein: The screening part (41) includes a shell cover (411), with a paddle wheel (412) provided on the top of the base (1). An outlet one (413) is opened inside the housing (2), and a screening plate one (414) is fixedly installed inside the housing (2). One end of the paddle wheel (412) is fixedly installed with a motor (415).

6. The screening device for raw materials used in injection molding according to claim 5, wherein: The shell cover (411) is fixedly installed on the left side of the housing (2), and the shell cover (411) is arranged on the top of the outlet one (413). The paddle wheel (412) is movably installed inside the outlet one (413). Both ends of the paddle wheel (412) penetrate through the housing (2) and extend to the inside of the housing (2). The motor (415) is fixedly installed with the housing (2), and the motor (415) is electrically connected to the control switch (324).

7. The screening device for raw materials for injection molding according to claim 1, characterized in that: The vibrating part (42) includes a guide plate (421). Inside the housing (2), a second screening plate (422) is fixedly installed. An outlet opening two (423) is formed inside the housing (2). Connecting plates (424) are fixedly installed on both sides of the housing (2). Springs (425) are linearly and equidistantly fixedly installed on the top of the base (1). Vibration motors (426) are fixedly installed on both sides of the housing (2).

8. The screening device for raw materials used in injection molding according to claim 7, wherein: The guide plate (421) is fixedly installed inside the housing (2). The guide plate (421) is arranged at the bottom of the first screening plate (414). The second screening plate (422) is arranged at the bottom of the guide plate (421). The vibration motor (426) is electrically connected to the control switch (324). One end of the spring (425) is fixedly installed at the bottom of the connecting plate (424). The vibration motor (426) is arranged in the middle of one side of the housing (2).

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