Raw material screening device of injection molding machine

Abstract

The utility model provides a raw material screening device for an injection molding machine, belongs to the field of raw material screening, aims to solve the problem that a screening net is inconvenient to disassemble and replace conveniently, and comprises a mounting frame, a first motor is fixedly connected to the mounting frame, and a pull plate is fixedly connected to a limiting plate. According to the screening device, through the arranged clamping blocks, when the screening frame needs to be disassembled and taken out, a pulling plate on the screening frame can be pushed to drive a limiting plate to move, the limiting plate can extrude a second spring when moving, the limiting plate can drive the clamping blocks to fall off from the interior of a protective shell during extrusion, and when the screening frame is not hindered by the clamping blocks, the screening frame is separated from the protective shell; and when the screening frame needs to be replaced, the screening frame is installed back into the treatment box, a pull plate is loosened, a limiting plate and a clamping block are driven to reset under pushing of a second spring, the screening frame can be stably clamped in the treatment box, and convenient and fast limiting and fixing and convenient dismounting and replacement are achieved.

Description

Technical Field

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

[0002] Injection molding machine is a main molding equipment that uses plastic molding molds to make plastic products of various shapes from thermoplastic plastics or thermosetting plastics. It can heat plastics and is widely used in plastic molding operations. When using an injection molding machine, the raw materials used by the injection molding machine have uneven particle sizes. Uneven particles can easily affect the uniformity of heating and the stability of product production. A raw material screening device is needed to screen the raw materials of the injection molding machine.

[0003] However, most of the current raw material screening devices for injection molding machines have the following problems:

[0004] 1. The existing raw material screening device for injection molding machines, when screening the raw materials, mostly filters and screens the materials through a screen or filter. When there are a lot of materials, the materials are prone to accumulation, and the accumulated materials will clog the mesh of the filter, causing blockage, etc., which affects the screening efficiency and is inconvenient for convenient screening.

[0005] Second, in the existing raw material screening device for injection molding machines, the screening net is mostly in an integrated fixed state when in use. When the raw materials are screened for a long time, the screening net is prone to deformation. When the screening net needs to be disassembled for cleaning or replacement, it is more troublesome, affecting the processing efficiency, and it is inconvenient to disassemble and replace the screening net conveniently.

[0006] Therefore, we make improvements to this and propose a raw material screening device for injection molding machine. Utility Model Content

[0007] The purpose of the utility model is to solve the problems that it is inconvenient to carry out convenient screening processing and it is inconvenient to disassemble and replace the screening net conveniently.

[0008] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0009] Injection molding machine raw material screening device is used to improve the above problems.

[0010] The specific application is as follows:

[0011] The present invention comprises a mounting frame, wherein the mounting frame is fixedly connected with a first motor, the output shaft of the first motor is fixedly connected with a first connecting rod, the first connecting rod is rotatably connected in the mounting frame, a transmission belt is arranged on the first connecting rod, a first special-shaped block is fixedly connected to the first connecting rod, a baffle is fixedly connected in the mounting frame, a protective shell is arranged in the mounting frame, a limiting block is fixedly connected to the protective shell, the limiting block is limitedly slidably connected in the mounting frame, a first spring is fixedly connected in the protective shell, the other end of the first spring is fixedly connected with a processing box, and the protective shell is fixedly connected with a first spring. A feed pipe is connected, a guide block is fixedly connected to the processing box, and the guide block is limited and slidably connected in the protective shell, the processing box is fixedly connected to a connecting frame, the protective shell is fixedly connected to a second motor, the output shaft of the second motor is fixedly connected to a second connecting rod, the second connecting rod is fixedly connected to a second special-shaped block, a stopper is fixedly connected in the connecting frame, a screening frame is arranged in the processing box, a second spring is fixedly connected in the screening frame, a limiting plate is fixedly connected to the second spring, a clamping block is fixedly connected to the limiting plate, and a pulling plate is fixedly connected to the limiting plate.

[0012] As a preferred technical solution of the present application, the output shaft of the first motor is fixedly connected to the center of one end of the first connecting rod, and the first special-shaped blocks are symmetrically distributed on the left and right sides of the first connecting rod.

[0013] As a preferred technical solution of the present application, two groups of first springs are provided, and the two groups of first springs are symmetrically distributed on the left and right sides of the protective shell, and each group of first springs is equidistantly distributed in the protective shell.

[0014] As a preferred technical solution of the present application, the side end surface of the protective shell is fitted with the inner side surface of the mounting frame, and the cross-section of the guide block is "T"-shaped.

[0015] As a preferred technical solution of the present application, the cross-sections of the first special-shaped block and the second special-shaped block are teardrop-shaped, and the side end surface of the limiting plate is in contact with the inner side surface of the screening frame.

[0016] As a preferred technical solution of the present application, the second springs are symmetrically distributed on the left and right sides of the screening frame, and the second springs correspond one-to-one with the clamping blocks through the limiting plates.

[0017] Compared with the prior art, the utility model has the following beneficial effects:

[0018] In the scheme of this application:

[0019] 1. By setting up the first special-shaped block, when screening the material, the material can be prevented from being blocked and accumulated, and the first motor can be turned on to drive the first connecting rod to operate. When the first connecting rod rotates, the transmission belt can be used to drive the first connecting rods on both sides to rotate simultaneously. When the first connecting rod operates, it can drive the first special-shaped block to rotate, and the longer end of the first special-shaped block can push the protective shell to move upward. After the longer end of the first special-shaped block rotates, the protective shell falls downward without hindrance and can vibrate. At the same time, when the second special-shaped block in the protective shell rotates, it can push the stopper to move, and the stopper can drive the processing box to move through the connecting frame, and the processing box can squeeze and pull the first spring in the protective shell. After the second special-shaped block rotates, it can be reset and shaken left and right under the pulling and pushing of the first spring, so as to screen and shake the raw materials in the screening frame to avoid clogging the screening frame.

[0020] 2. Through the set blocking block, when the screening frame needs to be disassembled and taken out, the pull plate on the screening frame can be pushed to drive the limit plate to move. The limit plate can squeeze the second spring when moving. While squeezing, the limit plate can drive the blocking block to fall off from the protective shell. When the screening frame is not hindered by the blocking block, the screening frame can be taken out for disassembly and cleaning. When the screening frame needs to be replaced, the screening frame is installed back into the processing box, the pull plate is released, and the limit plate and the blocking block are reset under the push of the second spring. The screening frame can be stably engaged in the processing box for convenient limit fixation, which is convenient for disassembly and replacement. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the raw material screening device for the injection molding machine provided in this application;

[0022] Figure 2 A schematic diagram of the side view of the mounting frame of the raw material screening device for the injection molding machine provided in this application;

[0023] Figure 3 A schematic diagram of the side view structure of the first special-shaped block of the raw material screening device for the injection molding machine provided in the present application;

[0024] Figure 4 A schematic diagram of the structure of the block of the raw material screening device for the injection molding machine provided in the present application when viewed from above;

[0025] Figure 5 This is a schematic diagram of the upward structure of the limit plate of the raw material screening device for the injection molding machine provided in this application.

[0026] Markings in the figure: 1. Mounting frame; 2. First motor; 3. First connecting rod; 4. Transmission belt; 5. First special-shaped block; 6. Baffle; 7. Protective shell; 8. Limit block; 9. First spring; 10. Processing box; 11. Feed pipe; 12. Guide block; 13. Connecting frame; 14. Second motor; 15. Second connecting rod; 16. Second special-shaped block; 17. Block; 18. Screening frame; 19. Second spring; 20. Limit plate; 21. Block; 22. Pull plate. DETAILED DESCRIPTION

[0027] To make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be described clearly and completely in conjunction with the accompanying drawings. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments.

[0028] Therefore, the following detailed description of the embodiments of the present invention is not intended to limit the scope of the present invention to be protected, but merely represents some embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features and technical solutions in the embodiments may be combined with each other.

[0030] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0031] In the description of the present utility model, it should be noted that the orientation or position relationship indicated by the terms "upper", "lower", etc. is based on the orientation or position relationship shown in the drawings, or the orientation or position relationship in which the product is usually placed when in use, or the orientation or position relationship commonly understood by those skilled in the art. Such terms are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0032] Embodiment 1:

[0033] like Figure 1-5As shown, this embodiment proposes a raw material screening device for an injection molding machine, including a mounting frame 1, a first motor 2 is fixedly connected to the mounting frame 1, an output shaft of the first motor 2 is fixedly connected to a first connecting rod 3, the first connecting rod 3 is rotatably connected in the mounting frame 1, a transmission belt 4 is provided on the first connecting rod 3, a first special-shaped block 5 is fixedly connected to the first connecting rod 3, a baffle 6 is fixedly connected in the mounting frame 1, a protective shell 7 is provided in the mounting frame 1, a limiting block 8 is fixedly connected to the protective shell 7, the limiting block 8 is limitedly slidably connected in the mounting frame 1, a first spring 9 is fixedly connected in the protective shell 7, the other end of the first spring 9 is fixedly connected to a processing box 10, and a baffle 6 is fixedly connected in the mounting frame 1. A feed pipe 11 is connected, a guide block 12 is fixedly connected to the processing box 10, the guide block 12 is limited and slidably connected in the protective shell 7, a connecting frame 13 is fixedly connected to the processing box 10, a second motor 14 is fixedly connected to the protective shell 7, the output shaft of the second motor 14 is fixedly connected to a second connecting rod 15, the second connecting rod 15 is fixedly connected to a second special-shaped block 16, a stopper 17 is fixedly connected in the connecting frame 13, a screening frame 18 is arranged in the processing box 10, a second spring 19 is fixedly connected in the screening frame 18, a limiting plate 20 is fixedly connected to the second spring 19, a clamping block 21 is fixedly connected to the limiting plate 20, and a pulling plate 22 is fixedly connected to the limiting plate 20.

[0034] Embodiment 2:

[0035] The solution in Example 1 is further introduced below in combination with a specific working method, as described below:

[0036] like Figure 2 As shown, as a preferred embodiment, on the basis of the above method, further, the output shaft of the first motor 2 is fixedly connected to the center part of one end of the first connecting rod 3, and the first special-shaped blocks 5 are symmetrically distributed on the left and right sides of the first connecting rod 3, which can ensure that the protective shell 7 can be smoothly pushed to move under the rotation of the first special-shaped blocks 5 on both sides.

[0037] like Figure 2 As shown, as a preferred embodiment, on the basis of the above method, further, two groups of first springs 9 are arranged, and the two groups of first springs 9 are symmetrically distributed on the left and right sides of the protective shell 7, and each group of first springs 9 is equidistantly distributed in the protective shell 7, which can ensure that multiple first springs 9 can smoothly pull and push the processing box 10 to move.

[0038] like Figure 3 As shown, as a preferred embodiment, on the basis of the above-mentioned method, further, the side end face of the protective shell 7 is fitted with the inner side face of the mounting frame 1, and the cross-section of the guide block 12 is "T" shaped, which can ensure that the "T" shaped guide block 12 can support the processing box 10 for smooth movement.

[0039] like Figure 5 As shown, as a preferred embodiment, on the basis of the above-mentioned method, further, the cross-sections of the first special-shaped block 5 and the second special-shaped block 16 are teardrop-shaped, and the side end surface of the limiting plate 20 is in contact with the inner surface of the screening frame 18, which can ensure that the limiting plate 20 can move smoothly through the support of the inner surface of the screening frame 18 when moving.

[0040] like Figure 5 As shown, as a preferred embodiment, on the basis of the above-mentioned method, further, the second spring 19 is symmetrically distributed on the left and right sides of the screening frame 18, and the second spring 19 corresponds one-to-one with the block 21 through the limit plate 20, which can ensure that the screening frame 18 can be smoothly limited and installed under the engagement of the block 21 on both sides.

[0041] Specifically, when the raw material screening device of the injection molding machine is used: Figure 1-5 When screening the raw materials of the injection molding machine, the feed pipe 11 on the protective shell 7 can be opened to add the raw materials to the screening frame 18 in the processing box 10. When screening is required, the first motor 2 on the mounting frame 1 can be turned on to drive the first connecting rod 3 to operate. When the first connecting rod 3 rotates, the first connecting rods 3 on both sides can be driven to rotate through the transmission belt 4. When the first connecting rod 3 rotates, it can drive the first special-shaped block 5 to rotate at the same time. The longer end of the first special-shaped block 5 can push the protective shell 7 to move on the mounting frame 1. After the longer end of the first special-shaped block 5 is detached, the protective shell 7 is not hindered and falls and hits the baffle 6. The protective shell 7 can move up and down. The protective shell 7 can move smoothly under the limit of the limit block 8, and can drive the screening frame 18 in the processing box 10 in the protective shell 7 to shake up and down. At the same time, the second motor 14 on the protective shell 7 is turned on, and the second motor 14 can drive the second connecting rod 15 to rotate. The second connecting rod 15 can The second special-shaped block 16 is driven to rotate at the same time, and the longer end of the second special-shaped block 16 can push the stopper 17 to drive the connecting frame 13 and the processing box 10 to move to one side. When the processing box 10 moves, it can move smoothly under the support and guidance of the guide block 12. When the processing box 10 moves, it can squeeze and pull the first spring 9. When the second special-shaped block 16 continues to rotate and disengage, the stopper 17 is not hindered. Under the push and pull of the first spring 9, the processing box 10 is driven to reset, and the processing box 10 and the internal screening frame 18 can be driven to shake left and right. The screening frame 18 can fully screen the raw materials under the shaking up and down and left and right. After the screened materials fall, they can be screened one by one through multiple screening frames 18. The lower the screening frame 18 is, the smaller the filter holes are, which can fully screen the raw materials. When the raw materials need to be taken out, the protective door on the protective shell 7 can be opened, and the materials screened by the screening frame 18 can be taken out and collected.

[0042] If the screening frame 18 needs to be cleaned or taken out for replacement, the pull plates 22 on both sides of the screening frame 18 can be pulled, and the pull plates 22 drive the limiting plates 20 to move. The limiting plates 20 can squeeze the second springs 19 when moving, and at the same time, the limiting plates 20 can drive the blocking blocks 21 to detach from the protective shell 7 and retract into the screening frame 18. When the screening frame 18 is not affected by the blocking blocks 21, the screening frame 18 can be smoothly taken out for cleaning or replacement. When installing the limited screening frame 18, the screening frame 18 can be stuffed back into the processing box 10, and the pull plates 22 are released. Under the push of the second springs 19, the limiting plates 20 are driven to reset. When the limiting plates 20 are reset, they can drive the blocking blocks 21 to engage in the processing box 10, and the replaced screening frame 18 is smoothly installed and fixed so that it can be disassembled and used according to the usage.

[0043] The above embodiments are only used to illustrate the utility model but not to limit the technical solutions described in the utility model. Although the present invention has been described in detail with reference to the above embodiments, the utility model is not limited to the above specific implementation methods. Therefore, any modification or equivalent replacement of the utility model; and all technical solutions and improvements that do not deviate from the spirit and scope of the utility model are included in the scope of the claims of the utility model.

Claims

1. A raw material screening device for an injection molding machine, comprising a mounting frame (1), characterized in that: The mounting frame (1) is fixedly connected with a first motor (2), the output shaft of the first motor (2) is fixedly connected with a first connecting rod (3), the first connecting rod (3) is rotatably connected in the mounting frame (1), a transmission belt (4) is provided on the first connecting rod (3), a first special-shaped block (5) is fixedly connected to the first connecting rod (3), a baffle (6) is fixedly connected in the mounting frame (1), a protective shell (7) is provided in the mounting frame (1), a limit block (8) is fixedly connected to the protective shell (7), the limit block (8) is limitedly slidably connected in the mounting frame (1), a first spring (9) is fixedly connected in the protective shell (7), the other end of the first spring (9) is fixedly connected with a processing box (10), a feeding pipe (11) is fixedly connected to the protective shell (7), the processing box ( A guide block (12) is fixedly connected to the processing box (10), and the guide block (12) is limitedly slidably connected in the protective shell (7); a connecting frame (13) is fixedly connected to the processing box (10); a second motor (14) is fixedly connected to the protective shell (7); the output shaft of the second motor (14) is fixedly connected to a second connecting rod (15); the second connecting rod (15) is fixedly connected to a second special-shaped block (16); a stopper (17) is fixedly connected in the connecting frame (13); a screening frame (18) is arranged in the processing box (10); a second spring (19) is fixedly connected in the screening frame (18); a limiting plate (20) is fixedly connected to the second spring (19); a clamping block (21) is fixedly connected to the limiting plate (20); and a pulling plate (22) is fixedly connected to the limiting plate (20).

2. The raw material screening device for an injection molding machine according to claim 1, characterized in that: The output shaft of the first motor (2) is fixedly connected to the central part of one end of the first connecting rod (3), and the first special-shaped blocks (5) are symmetrically distributed on the left and right sides of the first connecting rod (3).

3. The raw material screening device for injection molding machine according to claim 1, characterized in that: The first springs (9) are provided in two groups, the two groups of first springs (9) are symmetrically distributed on the left and right sides of the protective shell (7), and each group of first springs (9) is equidistantly distributed in the protective shell (7).

4. The raw material screening device for injection molding machine according to claim 1, characterized in that: The side end surface of the protective shell (7) fits the inner side surface of the mounting frame (1), and the cross section of the guide block (12) is in a "T" shape.

5. The raw material screening device for injection molding machine according to claim 1, characterized in that: The cross-sections of the first special-shaped block (5) and the second special-shaped block (16) are in the shape of a teardrop, and the side end surface of the limiting plate (20) is in contact with the inner side surface of the screening frame (18).

6. The raw material screening device for injection molding machine according to claim 1, characterized in that: The second springs (19) are symmetrically distributed on the left and right sides of the screening frame (18), and the second springs (19) correspond one-to-one to the clamping blocks (21) through the limiting plates (20).

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