Anti-impact-melting injection mold for processing double-color product

Abstract

The utility model relates to the technical field of processing of injection molding products, in particular to an anti-scouring and anti-melting injection molding mold for processing of double-color products. The forming die block is embedded and fixed in a groove in the side wall of the fixed die body; the storage bin is fixed to the two side walls of the positioning plate through supporting plates. The conveying pipe is inserted into the side wall of the fixed mold body in a penetrating mode, the conveying pipe is inserted into one side wall of the fixed mold body, the conveying pipe is connected with the discharging end of the other storage bin in a penetrating mode, and spiral conveyors are arranged in the conveying pipe and the inner bottom of the storage bin on the upper side; the temporary storage pipe is embedded in the lower side of the fixed die body; the piston rod is arranged in the temporary storage pipe; the reciprocating mechanism is connected with the outer end of the piston rod; a piston plate on the piston rod is movably sleeved on the cooling pipe through a sealing ring; a vertical pipe of the feeding pipe is communicated with the temporary storage pipe, and a transverse pipe of the feeding pipe is communicated with a groove in the lower side of the side wall of the fixed die body; when injection of the second color is carried out, raw materials can be cooled at a certain temperature, then feeding is carried out through external force, and therefore the phenomenon of fusion can be prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molding product processing, in particular to an anti-impact and melt injection molding mold for processing two-color products. Background Art

[0002] Two-color products are products with two colors. The injection molding operation is carried out in sequence to achieve the requirement of two-color coverage. However, during the injection molding process, melting is prone to occur. During the second shot molding, the material temperature is too high, which will cause the first color product to melt and rush into the cavity with the material flow, causing product defects and even damaging the mold, thereby reducing product quality and increasing costs. Utility Model Content

[0003] The purpose of the utility model is to provide a reasonable-designed and easy-to-use anti-melt injection mold for processing two-color products in view of the defects and shortcomings of the prior art, which can effectively solve the defects of the above-mentioned prior art.

[0004] To achieve the above purpose, the technical solution adopted by the utility model is: it includes a positioning plate, a fixed mold body, a movable mold body, a rotating disk and a movable plate, one side of the positioning plate is fixed with a fixed mold body, one side of the fixed mold body is provided with a movable mold body, the movable mold body is fixed on the rotating disk, the rotating disk is screwed on the movable plate through a rotating component, a guide rod is movably inserted on the outer peripheral wall of the movable plate, and the guide rod is fixed on one side wall of the positioning plate; it also includes:

[0005] Forming modules, there are two of them, and they are respectively embedded and fixed in the grooves on the side walls of the fixed mold body, and the forming modules are matched with the forming cavities on the side walls of the movable mold body;

[0006] There are two material storage bins, which are respectively fixed on the two side walls of the positioning plate through support plates, one of which is suspended above the fixed mold body, and the material storage bin is connected to the groove on the upper side of the side wall of the fixed mold body through a pipeline;

[0007] A conveying pipe, wherein the conveying pipe is inserted through the side wall of the fixed mold body, and the conveying pipe is inserted into one side wall of the fixed mold body, the conveying pipe is connected to the discharge end of another storage bin, and the conveying pipe and the inner bottom of the upper storage bin are both equipped with a screw conveyor;

[0008] A temporary storage tube, which is embedded in the lower side of the fixed mold body and is connected to the inner end of the delivery tube;

[0009] A piston rod, wherein the piston rod is disposed in the temporary storage tube, and the rod end of the piston rod passes through the upper side wall of the temporary storage tube and is exposed in the temporary storage tube;

[0010] A reciprocating mechanism, wherein the reciprocating mechanism is disposed in the fixed mold body and connected to the outer end of the piston rod;

[0011] There are several cooling pipes, which are fixed at equal angles on the upper and lower inner walls of the temporary storage pipe. The piston plate on the piston rod is movably sleeved on the cooling pipe through a sealing ring;

[0012] A feeding pipe, wherein the feeding pipe is arranged in an "L" shape, the vertical pipe of the feeding pipe is connected with the temporary storage pipe, and the horizontal pipe of the feeding pipe is connected with the groove located at the lower side of the side wall of the fixed mold body;

[0013] Through the above technical scheme, the material of the first color is placed in the storage bin on the upper side, and the material of the second color is placed in the storage bin on one side. The movable plate is connected to the driving component on the injection molding machine. During injection molding, the injection molding machine drives the movable plate to move to one side of the positioning plate until the molding module is inserted into the molding cavity on the movable mold body. The screw conveyor in the upper storage bin is started first, so as to feed the upper molding cavity first. After the material in the molding cavity on the upper side is molded, the rotating disk is driven to rotate by the rotating component, and the rotating disk drives the movable mold body to rotate, so that the molding cavity with the product injected rotates to the lower side. At this time, after cooperating with the molding module on the lower side, the screw conveyor in the conveying pipe is started, so that the raw material of the second color enters the temporary storage tube. At this time, after the raw material is cooled to a certain extent by the cooling tube, the reciprocating mechanism is started, and the reciprocating mechanism drives the piston rod to move. The piston rod pushes the raw material in the temporary storage tube into the feeding tube, and finally enters the molding cavity, so as to perform secondary injection molding.

[0014] As a further improvement of the utility model, the reciprocating mechanism comprises:

[0015] A movable plate, wherein the movable plate is fixed on the top end of the piston rod, a waist-shaped hole is provided in the movable plate, a driving plate is slidably provided in the waist-shaped hole, and an outer edge of the driving plate is movably embedded in a groove on the inner ring wall of the waist-shaped hole;

[0016] A driving rod, wherein the driving rod is screwed to a side wall of the driving plate through a shaft rod, and a driving motor is fixed to the other end of the driving rod. The driving motor is embedded and fixed to an inner wall of a side of the fixed mold body, and the driving motor is equipped with a battery;

[0017] Through the above technical solution, the driving motor is started, the driving motor drives the driving rod to rotate, and the driving rod drives the driving plate to rotate during the rotation process. Since the driving plate slides in the waist-shaped hole of the moving plate, the moving plate moves up and down.

[0018] As a further improvement of the utility model, sliding blocks are fixed on both the front and rear side walls of the movable plate, and the sliding blocks are slidably arranged in the sliding grooves on the front and rear inner walls of the fixed mold body;

[0019] The above technical solution can improve the stability of the movable plate when it moves up and down.

[0020] As a further improvement of the utility model, a semiconductor refrigeration sheet is embedded and fixed on one side of the outer ring wall of the temporary storage box, an opening is provided on one side wall of the fixed mold body located outside the semiconductor refrigeration sheet, and a fin is fixed on the inner side wall of the semiconductor refrigeration sheet, and the fin is sleeved on a plurality of cooling tubes;

[0021] Through the above technical solution, when the raw material is cooled by the cooling tube, the cooling tube and the fins exchange heat, and at the same time the fins exchange heat with the semiconductor refrigeration sheet, thereby facilitating cooling of the cooling tube and improving the cooling effect.

[0022] As a further improvement of the utility model, a temperature sensor is embedded and fixed on the lower surface of the piston plate of the piston rod, and the temperature sensor is connected to the semiconductor cooling sheet through a controller;

[0023] Through the above technical solution, the temperature of the raw material in the temporary storage tube can be easily detected by the temperature sensor, so as to avoid the raw material of the first color from being unable to enter the molding cavity of the movable mold due to the temperature being too low, and to avoid the raw material of the first color from being melted due to the temperature being too high.

[0024] Compared with the prior art, the beneficial effects of the utility model are as follows: the anti-melt injection mold for processing two-color products described in the utility model can cool the raw materials to a certain temperature when injecting the second color, and then feed the materials through external force, thereby preventing the occurrence of melt. The utility model has the advantages of reasonable setting and low production cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a structural schematic diagram of the utility model.

[0026] Figure 2 It is a schematic diagram of the internal structure of the fixed mold body in the utility model.

[0027] Figure 3 It is an exploded view of the reciprocating mechanism, temporary storage tube and piston rod in the utility model.

[0028] Figure 4 It is an exploded view of the reciprocating mechanism in the utility model.

[0029] Description of reference numerals:

[0030] Positioning plate 1, fixed mold body 2, movable mold body 3, rotating disk 4, movable plate 5, guide rod 6, molding module 7, storage bin 8, conveying pipe 9, temporary storage pipe 10, piston rod 11, reciprocating mechanism 12, movable plate 12-1, waist-shaped hole 12-1-1, driving plate 12-2, driving rod 12-3, driving motor 12-4, cooling pipe 13, feeding pipe 14, sliding block 15, semiconductor cooling sheet 16, fin 17, temperature sensor 18. DETAILED DESCRIPTION

[0031] The utility model is further described below in conjunction with the accompanying drawings.

[0032] Example 1: Figure 1-Figure 4 As shown, this embodiment includes a positioning plate 1, a fixed mold body 2, a movable mold body 3, a rotating disk 4 and a movable plate 5, the fixed mold body 2 is fixed to the right side of the positioning plate 1 by bolts, the movable mold body 3 is arranged on the right side of the fixed mold body 2, the movable mold body 3 is fixed to the rotating disk 4 by bolts, the rotating disk 4 is screwed on the movable plate 5 by a rotating assembly, and a guide rod 6 is movably inserted on the outer peripheral wall of the movable plate 5, and the guide rod 6 is fixed to the right side wall of the positioning plate 1; it also includes:

[0033] The molding modules 7 are two and are respectively embedded and welded in the grooves on the side walls of the fixed mold body 2. The molding modules 7 are matched with the molding cavities on the side walls of the movable mold body 3.

[0034] There are two material storage bins 8, and they are respectively fixed on the two side walls of the positioning plate 1 through support plates, one of which is suspended above the fixed mold body 2, and the material storage bin 8 is connected to the groove on the upper side of the side wall of the fixed mold body 2 through a pipeline;

[0035] The conveying pipe 9 is inserted through the side wall of the fixed mold body 2, and the conveying pipe 9 is inserted in the left side wall of the fixed mold body 2. The conveying pipe 9 is connected with the discharge end of the storage bin 8 on the lower left side, and the conveying pipe 9 and the inner bottom of the upper storage bin 8 are both built-in screw conveyors;

[0036] A temporary storage tube 10, wherein the temporary storage tube 10 is embedded in the lower side of the fixed mold body 2, and the temporary storage tube 10 is connected with the inner end of the delivery tube 9;

[0037] A piston rod 11, wherein the piston rod 11 is disposed in the temporary storage tube 10, and the rod end of the piston rod 11 passes through the upper side wall of the temporary storage tube 10 and is exposed in the temporary storage tube 10;

[0038] A reciprocating mechanism 12, wherein the reciprocating mechanism 12 is disposed in the fixed mold body 2 and connected to the outer end of the piston rod 11;

[0039] The cooling pipe 13 is a plurality of cooling pipes 13, and the cooling pipes 13 are welded and fixed at equal angles on the upper and lower inner walls of the temporary storage pipe 10, and the piston plate on the piston rod 11 is movably sleeved on the cooling pipe 13 through a sealing ring;

[0040] The feeding pipe 14 is arranged in an "L" shape, the vertical pipe of the feeding pipe 14 is connected with the temporary storage pipe 10, and the horizontal pipe of the feeding pipe 14 is connected with the groove on the lower side of the side wall of the fixed mold body 2.

[0041] Example 2: See Figure 2-4 As shown, based on Example 1, the reciprocating mechanism 12 includes:

[0042] A movable plate 12-1, wherein the movable plate 12-1 is welded and fixed on the top end of the piston rod 11, and a waist-shaped hole 12-1-1 is provided in the movable plate 12-1, and a driving plate 12-2 is slidably arranged in the waist-shaped hole 12-1-1, and the outer edge of the driving plate 12-2 is movably embedded in the groove on the inner ring wall of the waist-shaped hole 12-1-1; sliding blocks 15 are welded and fixed on both the front and rear side walls of the movable plate 12-1, and the sliding blocks 15 are slidably arranged in the slide grooves on the front and rear inner walls of the fixed mold body 2, which can improve the stability of the movable plate 12-1 when it moves up and down;

[0043] The driving rod 12-3 is screwed onto the left side wall of the driving plate 12-2 via an axle rod, and a driving motor 12-4 is fixed to the left end of the driving rod 12-3. The driving motor 12-4 is embedded and fixed on an inner wall of one side of the fixed mold body 2, and the driving motor 12-4 is provided with a battery.

[0044] Example 3: See Figure 3 , Figure 4 As shown, on the basis of Example 1, a semiconductor refrigeration plate 16 is embedded and fixed on the left side of the outer ring wall of the temporary storage tube 10, an opening is provided on a side wall of the fixed mold body 2 located on the outside of the semiconductor refrigeration plate 16, and fins 17 are welded and fixed on the inner wall of the semiconductor refrigeration plate 16, and the fins 17 are sleeved on several cooling tubes 13; a temperature sensor 18 is embedded and fixed by bolts on the lower surface of the piston plate of the piston rod 11, and the temperature sensor 18 is connected to the semiconductor refrigeration plate 16 through a controller.

[0045] When using the utility model, the material of the first color is placed in the storage bin 8 on the upper side, and the material of the second color is placed in the storage bin 8 on one side, and the movable plate 5 is connected to the driving component on the injection molding machine. During injection molding, the injection molding machine drives the movable plate 5 to move to one side of the positioning plate 1 until the molding module 7 is inserted into the molding cavity on the movable mold body 3, and the screw conveyor in the storage bin 8 on the upper side is started first, so as to feed the molding cavity on the upper side first. After the material in the molding cavity on the upper side is molded, the rotating assembly drives the rotating disk 4 to rotate, and the rotating disk 4 drives the movable mold body 3 to rotate, so that the molding cavity with the product injected rotates to the lower side. At this time, after cooperating with the molding module 7 on the lower side, Start the screw conveyor in the conveying pipe 9, so that the second color raw material enters the temporary storage tube 10. At this time, after the raw material is cooled to a certain extent by the cooling tube 13, the driving motor 12-4 is started, and the driving motor 12-4 drives the driving rod 12-3 to rotate. The driving rod 12-3 drives the driving plate 12-2 to rotate during the rotation. Since the driving plate 12-2 slides in the waist-shaped hole 12-1-1 of the moving plate 12-1, the moving plate 12-1 moves up and down, and the moving plate 12-1 drives the piston rod 11 to move. The piston rod 11 pushes the raw material in the temporary storage tube 10 into the feeding tube 14, and finally enters the molding cavity, so as to perform secondary injection molding;

[0046] When the raw material is cooled by the cooling tube 13, the cooling tube 13 and the fin 17 exchange heat, and at the same time, the fin 17 and the semiconductor refrigeration plate 16 exchange heat, so as to facilitate cooling the cooling tube 13 and improve the cooling effect. The temperature of the raw material in the temporary storage tube 10 can be detected by the temperature sensor 18, so as to avoid the temperature being too low to enter the molding cavity of the movable mold 3, and also to avoid the first color raw material from melting due to excessively high temperature.

[0047] Compared with the prior art, the beneficial effects of this specific implementation are as follows:

[0048] 1. A cooling tube 13 is provided inside the temporary storage tube 10, so that the raw material of the second color can be cooled to a certain extent before being injected into the molding cavity, thereby preventing the raw material temperature from being too high and causing the raw material of the first color to melt;

[0049] 2. A reciprocating mechanism 12 is provided on the piston rod 11 in the temporary storage tube 10, so that the raw material in the temporary storage tube 10 can be pushed by the piston rod 11 to avoid the raw material being unable to enter the molding cavity due to low temperature, thereby improving the molding effect;

[0050] 3. A semiconductor cooling sheet 16, a fin 17 and a temperature sensor 18 are arranged inside the temporary storage tube 10, so as to facilitate the control of the temperature of the raw materials in the temporary storage tube 10 and avoid the raw materials being too low or too high to affect the quality of the injection molded products.

[0051] The above description is only used to illustrate the technical solution of the utility model rather than to limit it. Other modifications or equivalent substitutions made to the technical solution of the utility model by ordinary technicians in this field should be included in the scope of the claims of the utility model as long as they do not depart from the spirit and scope of the technical solution of the utility model.

Claims

1. An anti-melt injection mold for processing a two-color product, comprising a positioning plate (1), a fixed mold body (2), a movable mold body (3), a rotating disk (4) and a movable plate (5), wherein the fixed mold body (2) is fixed on one side of the positioning plate (1), the movable mold body (3) is arranged on one side of the fixed mold body (2), the movable mold body (3) is fixed on the rotating disk (4), the rotating disk (4) is screwed on the movable plate (5) through a rotating component, and a guide rod (6) is movably inserted on the outer peripheral wall of the movable plate (5), and the guide rod (6) is fixed on one side wall of the positioning plate (1); characterized in that It also contains: A molding module (7), wherein the molding modules (7) are two and are respectively embedded in and fixed in grooves on the side wall of the fixed mold body (2), and the molding modules (7) are arranged in coordination with the molding cavities on the side wall of the movable mold body (3); The material storage bins (8) are two and are fixed to the two side walls of the positioning plate (1) through support plates, respectively. One of the material storage bins (8) is suspended above the fixed mold body (2), and the material storage bin (8) is connected to the groove on the upper side of the side wall of the fixed mold body (2) through a pipeline; A conveying pipe (9), wherein the conveying pipe (9) is inserted through a side wall of the fixed mold body (2), and the conveying pipe (9) is inserted into a side wall of the fixed mold body (2), the conveying pipe (9) is connected to the discharge end of another storage bin (8), and the inner bottom of the conveying pipe (9) and the upper storage bin (8) are both equipped with a screw conveyor; A temporary storage tube (10), wherein the temporary storage tube (10) is embedded in the lower side of the fixed mold body (2), and the temporary storage tube (10) is connected to the inner end of the delivery tube (9); A piston rod (11), wherein the piston rod (11) is disposed in the temporary storage tube (10), and the rod end of the piston rod (11) passes through the upper side wall of the temporary storage tube (10) and is exposed in the temporary storage tube (10); A reciprocating mechanism (12), wherein the reciprocating mechanism (12) is disposed in the fixed mold body (2), and the reciprocating mechanism (12) is connected to the outer end of the piston rod (11); A cooling pipe (13), wherein the cooling pipe (13) is in plurality and is fixed at equal angles on the upper and lower inner walls of the temporary storage pipe (10); a piston plate on the piston rod (11) is movably sleeved on the cooling pipe (13) via a sealing ring; A feeding pipe (14), wherein the feeding pipe (14) is arranged in an "L" shape, the vertical pipe of the feeding pipe (14) is arranged to be interlinked with the temporary storage pipe (10), and the horizontal pipe of the feeding pipe (14) is arranged to be interlinked with a groove located on the lower side of the side wall of the fixed mold body (2).

2. The anti-melt injection mold for processing two-color products according to claim 1, characterized in that: The reciprocating mechanism (12) comprises: A movable plate (12-1), the movable plate (12-1) being fixed on the top end of the piston rod (11), a waist-shaped hole (12-1-1) being provided in the movable plate (12-1), a driving plate (12-2) being slidably arranged in the waist-shaped hole (12-1-1), and an outer edge of the driving plate (12-2) being movably embedded in a groove on the inner ring wall of the waist-shaped hole (12-1-1); A driving rod (12-3) is screwed onto a side wall of a driving plate (12-2) via a shaft, a driving motor (12-4) is fixed to the other end of the driving rod (12-3), and the driving motor (12-4) is embedded in and fixed to an inner wall of a side of a fixed mold body (2), and the driving motor (12-4) is provided with a built-in storage battery.

3. The anti-melt injection mold for processing two-color products according to claim 2, characterized in that: Sliding blocks (15) are fixed on both the front and rear side walls of the movable plate (12-1), and the sliding blocks (15) are slidably arranged in sliding grooves on the front and rear inner walls of the fixed mold body (2).

4. The anti-melt injection mold for processing two-color products according to claim 1, characterized in that: A semiconductor cooling plate (16) is embedded and fixed on one side of the outer ring wall of the temporary storage tube (10), an opening is provided on a side wall of the fixed mold body (2) located outside the semiconductor cooling plate (16), and a fin (17) is fixed on the inner side wall of the semiconductor cooling plate (16), and the fin (17) is sleeved on a plurality of cooling tubes (13).

5. The anti-melt injection mold for processing two-color products according to claim 4, characterized in that: A temperature sensor (18) is embedded and fixed on the lower surface of the piston plate of the piston rod (11), and the temperature sensor (18) is connected to the semiconductor cooling plate (16) via a controller.

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