Waste recovery treatment equipment for injection molding machining

Abstract

The invention relates to the field of injection molding machining, in particular to waste recovery treatment equipment for injection molding machining. The injection molding product is difficult to break due to the shape problem, and consumed water and water resources are difficult to recycle. The invention discloses waste recovery treatment equipment for injection molding processing. The waste recovery treatment equipment comprises a support frame, a sorting groove, a conveying belt and a box body, a sorting groove is formed in one end of the box. A conveying belt is mounted in the box body; a water inlet pipe of the sorting groove faces the conveying belt; the device further comprises a thermoplastic box. A thermoplastic box is mounted at the other end of the box body; the box body is provided with a hydraulic machine on the upper side of the thermoplastic box; a hydraulic plate is mounted below the hydraulic machine; a gas outlet pipe capable of discharging high-temperature gas is arranged on the other side of the thermoplastic box, and a gas outlet hole faces the conveying belt. A large amount of water is added into the sorting groove, then defective products are added into the sorting groove, the defective products are screened through the water according to different densities, meanwhile, the defective products are pressed into strips through the mold groove and the hydraulic plate, and the defective products can be crushed conveniently.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of injection molding processing, in particular to a waste recycling equipment for injection molding processing. BACKGROUND

[0002] In the traditional injection molding process, it cannot be completely guaranteed that the products injected are all qualified products, and there may be products with internal air bubbles. The structural strength of such products is reduced due to the existence of air bubbles. For such defective products, they can be crushed and recycled. Since some spherical, tubular and other products with curved surfaces are not easy to be twisted into the crusher for crushing, manual assistance is required to a certain extent, such as assisting in pressing the products that have not been twisted into the crusher for crushing treatment, which is not safe.

[0003] In the prior art, for the screening of defective products with a density greater than water under normal circumstances, the product is soaked in water, and the problem product is screened out by taking advantage of the phenomenon that air bubbles cause the density to decrease and float in water. Moreover, the crushed fragments also need to undergo a cleaning operation. The prior art generally separates the screening and cleaning processes, resulting in a large total water consumption, which is easy to cause waste of water resources and difficult to recycle. SUMMARY

[0004] In order to overcome the difficulties in crushing due to the shape of the injection molded product, water consumption and the difficulty in recycling water resources, the present application provides a waste recycling equipment for injection molding processing.

[0005] The technical scheme of the present application is as follows: a waste recycling equipment for injection molding processing, comprising a support frame, a sorting tank, a conveyor belt and a box body mounted on the support frame; the box body is provided with a sorting tank at one end, and the sorting tank is connected with a water pipe for controlling water inflow and outflow; a conveyor belt is installed in the box body, and the water inlet pipe of the sorting tank is directed towards the conveyor belt; further comprising a thermoplastic box; the other end of the box body is provided with a thermoplastic box; a mold groove is provided in the thermoplastic box as the bottom surface of the thermoplastic box; an air inlet pipe is mounted on one side of the thermoplastic box, and the position of the air inlet pipe is higher than that of the mold groove; a hydraulic machine is provided on the upper side of the box body above the thermoplastic box; a hydraulic plate is installed below the hydraulic machine; an air outlet pipe is provided on the other side of the thermoplastic box, which can discharge high-temperature gas, and the air outlet hole is directed towards the conveyor belt.

[0006] As a preferred technical scheme of the present application, the lower surface of the hydraulic plate is provided with a protrusion matching the shape of the mold groove.

[0007] As a preferred technical scheme of the present application, the upper part of the hydraulic plate is provided as an inclined surface.

[0008] As a preferred technical scheme of the present application, the belt body of the conveyor belt is a metal mesh surface.

[0009] As a preferred embodiment of the present invention, it further includes a cooling and cleaning assembly, which includes a collection box, a water inlet channel, a drive component, a base plate, a cover plate, and a water collection tank. The collection box is installed on the lower side of the box body and is located below the thermoplastic box. A water inlet channel is provided inside the box body. A drive component is installed inside the collection box. A base plate is installed at the output end of the drive component, and the base plate is attached to the bottom of the mold groove. One end of the water inlet channel is connected to the sorting groove, and the other end is blocked by the side of the base plate and the side of the mold groove. A cover plate is provided on the upper side of the collection box. A water collection tank that can recover cooling water is installed inside the collection box.

[0010] As a preferred embodiment of the present invention, the collection box is tilted with the end closer to the water inlet channel higher and the end farther away from the water inlet channel lower.

[0011] As a preferred embodiment of the present invention, the width of the base plate is the same as that of the mold groove, the length is longer than that of the mold groove, and the end of the base plate away from the water inlet channel is flush with the end of the mold groove, while the end closer to the water inlet channel is not flush with the end of the mold groove.

[0012] As a preferred embodiment of the present invention, a plurality of cooling ports are provided in the mold groove to form a plurality of sandwich-type flow channels, and the flow direction of the cooling ports is parallel to the water intake direction of the water inlet channel, and the cooling ports penetrate the bottom surface of the mold groove.

[0013] As a preferred embodiment of the present invention, the collection tank is provided with a number of water outlets that connect the water collection tank and the collection tank.

[0014] As a preferred embodiment of the present invention, a filter screen is provided inside the water outlet.

[0015] Beneficial effects: This invention achieves the following: by adding a large amount of water to the sorting tank, and then adding defective products into the sorting tank, the defective products are screened by water using the difference in density. At the same time, the defective products are pressed into strips by the mold tank and hydraulic plate, which facilitates the crushing of the defective products. Then, high-temperature gas is used to remove some of the moisture on the defective products through the air outlet pipe, and the products are pre-dried.

[0016] Furthermore, the defective products pressed into the mold groove are cooled using screening water to accelerate their shaping. Then, the hydraulic plate pushes the strip-shaped defective products out of the mold groove. After cooling and cleaning in the collection box, they can be directly crushed. Using screening water for cooling and cleaning saves costs and protects the environment. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of a waste recycling and processing equipment for injection molding according to the present invention;

[0018] Figure 2This is a cross-sectional view of the housing of a waste recycling and processing equipment for injection molding according to the present invention;

[0019] Figure 3 This is a three-dimensional structural diagram of the thermoplastic box and mold groove combination of the present invention;

[0020] Figure 4 This is a three-dimensional structural diagram of the collection box, thermoplastic box, and hydraulic plate combination of the present invention;

[0021] Figure 5 This is a three-dimensional structural diagram of the cooling port of the present invention;

[0022] Figure 6 This is a three-dimensional structural diagram of the mold groove, water inlet channel and collection box combination of the present invention;

[0023] Figure 7 This is a cross-sectional view of the collection box of the present invention;

[0024] Figure 8 This is a schematic diagram of the three-dimensional structure of the combination of sorting trough and conveyor belt of the present invention.

[0025] The components in the diagram are labeled as follows: 1-Support frame, 2-Box body, 3-Sorting trough, 4-Conveyor belt, 101-Thermoplastic box, 102-Mold trough, 10201-Cooling port, 103-Air inlet pipe, 104-Hydraulic press, 105-Hydraulic plate, 106-Air outlet pipe, 10601-Air outlet, 201-Collection box, 20101-Water outlet, 202-Water inlet channel, 203-Drive component, 204-Base plate, 205-Cover plate, 206-Water collection tank. Detailed Implementation

[0026] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0027] Example 1 further includes a thermoplastic box 101, a mold groove 102, an air inlet pipe 103, a hydraulic press 104, a hydraulic plate 105, and an air outlet pipe 106; the thermoplastic box 101 is installed at the other end of the box body 2; the mold groove 102, which serves as the bottom surface of the thermoplastic box 101, is provided inside the thermoplastic box 101; the mold groove 102 is composed of several long plates intersecting and cooperating to form a grid; an air inlet pipe 103 is installed on one side of the thermoplastic box 101, and the air inlet pipe 103 is positioned higher than the mold groove 102; a hydraulic press 104 is installed on the upper side of the box body 2 above the thermoplastic box 101; a hydraulic plate 105 is installed on the lower side of the hydraulic press 104; an air outlet pipe 106 is provided on the other side of the thermoplastic box 101; several air outlet holes 10601 are opened on the air outlet pipe 106, and the air outlet holes 10601 face the conveyor belt 4.

[0028] The upper part of the hydraulic plate 105 is set as an inclined surface; defective products can be temporarily stored on its upper part, and it can be ensured that the temporarily stored defective products fall normally into the thermoplastic box 101 later.

[0029] The belt body of conveyor belt 4 is made of metal mesh, and the air outlet 10601 can make more full contact with the defective finished product and dry its surface.

[0030] In traditional injection molding, the injection molding machine melts plastic raw materials and injects them into the mold to form various plastic products. However, it cannot be guaranteed that all injection-molded products will meet the requirements. There may be products with internal voids. The structural strength of such products is reduced due to the presence of voids. For such defective products, they can be crushed and recycled. At the same time, because products with curved surfaces such as spheres and round tubes are not easy to be caught in the crusher, manual assistance is required to a certain extent. For example, help is needed to press the products that are not caught into the crusher for crushing, which is not safe enough.

[0031] To address the aforementioned issues, after the injection molding machine completes the product injection, water is introduced into the sorting tank 3 via a horizontal external water supply pipe facing the conveyor belt 4. The injection-molded products are then immersed and screened, with the water flowing towards the conveyor belt 4. Simultaneous water flow from the outlet pipe regulates the water level in the sorting tank 3. Defect-free products sink to the bottom, while floating defective products are pushed towards the surface of the conveyor belt 4 by the water flow. Subsequently, driven by the conveyor belt 4, they are transported to the thermoforming box 101. At this point, the hydraulic plate 105 on the hydraulic press 104 is positioned above the thermoforming box 101, preventing obstruction of defective products and ensuring sufficient quantity of products are transported. After the defective products are added to the thermoplastic box 101, the hydraulic plate 105 begins to descend until it covers the top of the thermoplastic box 101. At this time, the conveyor belt 4 continues to transport the defective products to the top of the thermoplastic box 101. The defective products transported later will gradually accumulate on the top of the hydraulic plate 105, thus serving as a temporary storage function. After processing is completed, the hydraulic plate 105 rises again. The top surface of the hydraulic plate 105 is inclined, so the accumulated defective products will slide down the inclined surface and fall back into the thermoplastic box 101. The whole process does not require cutting or deliberately reducing the working efficiency of the conveyor belt 4.

[0032] After the hydraulic plate 105 covers the thermoplastic box 101, the valve on the air inlet pipe 103 is opened to allow high-temperature gas generated by an external heater to be introduced, heating the defective products until they reach their softening temperature. During this process, the valve on the air outlet pipe 106 is opened, and the high-temperature gas used for heating continues to flow and spray out from several air outlets 10601, thereby utilizing the high-temperature gas to evaporate and dry the products in advance, reducing the moisture on the surface of the defective products on the conveyor belt 4 and improving energy utilization efficiency. Then, the hydraulic plate 105 begins to descend. As the hydraulic plate 105 descends, the softened defective products in the thermoplastic box 101 are pressed into the mold groove 102, thereby being pressed into several strips and blocks, shaping them into shapes that are easy to further break. After being removed, they can be divided into several independent individuals, achieving the purpose of easy crushing.

[0033] It should be noted that the positions of the air inlet pipe 103 and the air outlet pipe 106 are higher than the mold groove 102 to prevent the softened defective products from overflowing into the air inlet pipe 103 and the air outlet pipe 106 during the reshaping process of the hydraulic plate 105. Therefore, after the hydraulic plate 105 moves down to the height of the air inlet pipe 103 and the air outlet pipe 106, both need to be shut down first.

[0034] Example 2, based on Example 1, such as Figures 6-8 As shown, it also includes a cooling and cleaning assembly, which includes a collection box 201, a water inlet channel 202, a drive component 203, a base plate 204, a cover plate 205, and a water collection tank 206. The collection box 201 is installed on the lower side of the box body 2, and the collection box 201 is located below the thermoplastic box 101. The water inlet channel 202 is provided inside the box body 2. The drive component 203 is installed inside the collection box 201. The drive component 203 is an electric push rod. The output end of the drive component 203 is installed with the base plate 204, which is attached to the bottom of the mold groove 102. One end of the water inlet channel 202 is connected to the sorting groove 3, and the other end is blocked by the side of the base plate 204 and the side of the mold groove 102. The cover plate 205 is provided on the upper side of the collection box 201, and the cover plate 205 is located outside the box body 2. The water collection tank 206 is installed inside the collection box 201.

[0035] The collection box 201 is tilted with the end closer to the water inlet channel 202 higher and the end further away from the water inlet channel 202 lower.

[0036] The width of the base plate 204 is the same as that of the mold groove 102, and its length is longer than that of the mold groove 102. The end of the base plate 204 away from the water inlet channel 202 is flush with the end of the mold groove 102, while the end closer to the water inlet channel 202 is not flush with the end of the mold groove 102.

[0037] The mold groove 102 has several cooling ports 10201, forming several sandwich-type flow channels. The flow direction of the cooling ports 10201 is parallel to the water guiding direction of the water inlet channel 202, and the cooling ports 10201 penetrate the bottom surface of the mold groove 102. The water guided from the water inlet channel 202 can flow into the mold groove 102 through the cooling ports 10201, thereby exchanging heat with the defective product that is reshaped in the mold groove 102 through the metal mold groove 102 wall.

[0038] The collection box 201 has several water outlets 20101 that connect the water collection box 206 and the collection box 201, which can separate water and defective products after material molding.

[0039] The water outlet 20101 is equipped with a filter screen to filter out debris generated during the molding process and prevent contamination of the circulating cooling water.

[0040] Furthermore, defective products need to be screened before processing, and the screening process requires soaking the products in water. The processed plastics also need to undergo a washing operation. In existing technologies, the two processes are generally separated, and both processes require a large amount of water, which easily leads to the waste of water resources. Insufficient recycling of screening water results in direct discharge and waste of resources.

[0041] To address the aforementioned issues, during the lowering and pressing process of the hydraulic plate 105, combined with... Figure 7 As shown, because the water inlet channel 202 is inclined and the end connected to the sorting tank 3 is higher, the water inlet channel 202 can continuously guide the water in the sorting tank 3 to the top of the collection box 201. Initially, the bottom plate 204 is attached to the bottom of the mold groove 102 and does not descend, blocking the inlet of the collection box 201. Therefore, water will rush into the cooling port 10201 and remain there. The softened defective products pressed into the mold groove 102 will exchange heat with the cold water inside the cooling port 10201 through the inner wall of the mold groove 102, accelerating the shaping of the waste. After the waste is shaped after cooling for a period of time, the drive component 20 3. The base plate 204 descends, opening the inlet of the collection box 201. At this time, the heated water leaks from the bottom of the cooling port 10201, falls onto the base plate 204, and enters the collection box 201, where it is collected by the water collection tank 206. As the base plate 204 descends, the gap between the base plate 204 and the mold groove 102 increases sufficiently to allow the reshaped defective product to pass through. The hydraulic plate 105 presses down further, and the protrusion of the hydraulic plate 105 is completely pressed into the mold groove 102, pushing the reshaped defective product out of the mold groove 102 and causing it to fall downwards into the collection box 201. Figure 7 As shown, because the base plate 204 is longer than the mold groove 102, and the end of the base plate 204 away from the water inlet channel 202 is flush with the end of the mold groove 102, while the end near the water inlet channel 202 is not flush with the end of the mold groove 102, after the base plate 204 descends, a gap will be formed between the side of the mold groove 102 facing the water inlet channel 202 and the inlet of the collection box 201, allowing a large amount of cooling water to flow in. The cooling water guided by the water inlet channel 202 will flow into this gap in large quantities, and the defective product will fall into the flowing cooling water. The flowing cooling water will clean the defective product after reshaping. At the same time, the inclined state of the collection box 201, which is higher at the end near the water inlet channel 202 and lower at the end away from the water inlet channel 202, will wash it to the top of the water outlet 20101. Then the water and the product will separate, and the product will stay above the water outlet 20101. At this time, the cover plate 205 can be opened to collect the product, and the cooling water will be collected by the water collection tank 206.

[0042] After processing one batch, the base plate 204 rises and re-fits with the mold groove 102, sealing the inlet of the collection box 201. The hydraulic plate 105 rises to the top, and the next batch of defective products enters the thermoplastic box 101. The above process is repeated, and the water used for screening is reused for cooling and cleaning of subsequent defective plastic products. The cooling water is then collected again, and after impurities are removed through the water circulation system, it can be sent back to the water inlet pipe of the sorting tank 3 for reuse, saving costs and protecting the environment.

[0043] Those skilled in the art should understand that the above embodiments do not limit the present invention in any way, and all technical solutions obtained by equivalent substitution or equivalent transformation fall within the protection scope of the present invention.

Claims

1. A waste recycling and processing equipment for injection molding, characterized in that: The system includes a support frame (1), a sorting trough (3), a conveyor belt (4), and a housing (2) mounted on the support frame (1). One end of the housing (2) has a sorting trough (3), which is connected to a water pipe controlling the inlet and outlet of water. The conveyor belt (4) is installed inside the housing (2), with the inlet pipe of the sorting trough (3) facing the conveyor belt (4). The system also includes a thermoplastic box (101). The other end of the housing (2) has a thermoplastic box (101). The thermoplastic box (101) contains a thermoplastic... The bottom of the box (101) has a mold groove (102); an air inlet pipe (103) is installed on one side of the thermoplastic box (101), and the air inlet pipe (103) is higher than the mold groove (102); a hydraulic press (104) is installed on the upper side of the box (2) above the thermoplastic box (101); a hydraulic plate (105) is installed on the lower side of the hydraulic press (104); an air outlet pipe (106) is provided on the other side of the thermoplastic box (101) to discharge high-temperature gas, and the air outlet (10601) faces the conveyor belt (4).

2. The waste recycling and processing equipment for injection molding as described in claim 1, characterized in that: The lower surface of the hydraulic plate (105) is provided with protrusions that match the shape of the mold groove (102).

3. The waste recycling and processing equipment for injection molding as described in claim 1, characterized in that: The upper part of the hydraulic plate (105) is set as an inclined surface.

4. The waste recycling and processing equipment for injection molding as described in claim 3, characterized in that: The belt body of the conveyor belt (4) is made of metal mesh.

5. A waste recycling and processing equipment for injection molding according to any one of claims 1-3, characterized in that: It also includes a cooling and cleaning assembly, which includes a collection box (201), a water inlet channel (202), a drive unit (203), a base plate (204), a cover plate (205), and a water collection tank (206); a collection box (201) is installed on the lower side of the box body (2), and the collection box (201) is located below the thermoplastic box (101); a water inlet channel (202) is provided inside the box body (2); a drive unit (203) is installed inside the collection box (201); a base plate (204) is installed at the output end of the drive unit (203), and the base plate (204) is attached to the bottom of the mold groove (102). One end of the water inlet channel (202) is connected to the sorting groove (3), and the other end is blocked by the side of the base plate (204) and the side of the mold groove (102); a cover plate (205) is provided on the upper side of the collection box (201); a water collection tank (206) that can recycle cooling water is installed inside the collection box (201).

6. The waste recycling and processing equipment for injection molding as described in claim 5, characterized in that: The collection box (201) is tilted with the end closer to the water inlet channel (202) higher and the end further away from the water inlet channel (202) lower.

7. The waste recycling and processing equipment for injection molding as described in claim 6, characterized in that: The width of the base plate (204) is the same as that of the mold groove (102), and the length is longer than that of the mold groove (102). The end of the base plate (204) away from the water inlet channel (202) is flush with the end of the mold groove (102), while the end close to the water inlet channel (202) is not flush with the end of the mold groove (102).

8. The waste recycling and processing equipment for injection molding according to claim 7, characterized in that: The mold groove (102) has several cooling ports (10201) to form several sandwich-type flow channels. The flow direction of the cooling ports (10201) is parallel to the water intake direction of the water inlet channel (202), and the cooling ports (10201) penetrate the bottom surface of the mold groove (102).

9. The waste recycling and processing equipment for injection molding as described in claim 8, characterized in that: The collection tank (201) has several outlet holes (20101) that connect the water collection tank (206) and the collection tank (201).

10. The waste recycling and processing equipment for injection molding according to claim 9, characterized in that: A filter screen is installed inside the water outlet (20101).

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