An injection mold for a battery slot and a device for processing, recycling and recovering edge burr waste

By designing a combination of fixed mold and moving mold in the battery tank injection mold, the combined structure of the clamp strip and the thimble rod is used to solve the problems of uneven force and burr treatment during the mold release process, achieving more efficient mold release and lower production costs.

CN119704552BActive Publication Date: 2025-06-13TAIZHOU NANYANG PLASTIC PROD CO LTD
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Patent Information

Application Number
CN202510139607.6
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2025-02-08
Publication Date
2025-06-13
Estimated Expiration
2045-02-08

AI Technical Summary

Technical Problem

The existing battery tank injection molds have uneven forces during the demolding process, which can easily lead to deformation or damage of the molded parts, and the molds are prone to burrs, which requires additional treatment and increase production costs and cycles.

Method used

A battery tank injection mold is designed, using a combination of fixed mold and moving mold. The friction between the injection molded parts and the mold is reduced through the telescopic movement of the outer clamp strip and the inner clamp strip, and the ejection force is dispersed by multiple matrix-distributed thrust rods and external pressure plates, and the burrs are processed through the recycling bin driven by the linkage component.

Benefits of technology

It effectively reduces stress concentration and friction during injection molding, reduces the risk of deformation and damage of molded parts, improves mold release efficiency and production efficiency, and reduces subsequent processing steps through the recycling device, reducing labor and time costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present invention relates to the technical field of injection molds, and specifically relates to a battery slot injection mold and an edge waste treatment and recycling device thereof, including a fixed mold and a movable mold. An assembly seat is arranged at the lower end of the fixed mold, and a demolding block protrudes from one side of the movable mold. A sunken groove is formed in the fixed mold. An injection hole is formed at one end of the sunken groove away from the fixed mold, and outer clamping strips are distributed around the side wall of the sunken groove to reduce the friction force for the injection molded part to be demolded from the outside. A top plate is installed in the movable mold, and a thimble rod is arranged on the top plate. A hinge seat is installed on the movable mold, and a group of pressing arms are rotatably installed on the hinge seat. Inner clamping strips are distributed around the side wall of the demolding block to reduce the friction force for the injection molded part to be demolded from the inside. This mold can reduce the contact area between the inside and outside of the injection molded part and the mold during demolding, achieving the effects of reducing stress concentration and friction, and reducing the possibility of the molded part getting stuck in the mold. This edge waste treatment and recycling device can timely grind and recycle the burrs on the edge of the injection molded part.
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Description

Technical Field

[0001] The present invention relates to the technical field of injection molds, and particularly to an injection mold for a battery slot and a device for processing, recycling and treating edge burr waste. Background Art

[0002] With the increasing global demand for renewable energy and electric vehicles, the production and application of various batteries are receiving increasing attention. Especially the wide application of lithium batteries, nickel-metal hydride batteries, etc. in electric vehicles and energy storage systems has made the production process, mold design and waste treatment level of corresponding battery accessories, such as battery slots, a key factor in the industry development.

[0003] The existing injection molds for battery slots mainly adopt traditional processing technologies. These technologies have achieved efficient production of battery slots to a certain extent, but there are still some problems:

[0004] Firstly, during the demolding process of the existing injection molds, most of them eject the formed battery slot from the convex mold by setting ejector pins on one side. However, the ejector pins on one side may cause uneven ejection force when ejecting the formed part, which is likely to generate excessive pressure on one side of the formed part and insufficient pressure on the other side. This uneven ejection force may cause the formed part to deform, be damaged, or even break or crack during the demolding process. In addition, the mold is prone to form burrs at the connection between the injection port and the forming cavity, and there is a lack of a structure for timely processing, so additional post-processing procedures are still required to remove the burrs after forming, which will increase the production process, extend the production cycle, and increase the input costs of labor and equipment. Summary of the Invention

[0005] The purpose of the present invention is to provide an injection mold for a battery slot and a device for processing, recycling and treating edge burr waste to solve the problems raised in the above background art.

[0006] To achieve the above purpose, the present invention provides the following technical solution: An injection mold for a battery slot includes a fixed mold and a movable mold. An assembly seat is arranged at the lower end of the fixed mold. The movable mold is installed on the assembly seat in a limited sliding manner. A demolding block protrudes from the side of the movable mold close to the fixed mold. A sinking groove for accommodating the demolding block is opened on the fixed mold. An injection hole is opened at one end of the sinking groove far from the fixed mold, and outer clamping strips are distributed around the side wall of the sinking groove. Under the push of a first linkage component, a plurality of outer clamping strips perform telescopic movement to reduce the friction force for demolding the injection molded part from the outside;

[0007] Four fitting columns are arranged on the outer periphery of the demolding module. The fitting columns are fixedly arranged on the side wall of the moving mold. A top plate is installed in the moving mold in a limited sliding manner. One end of the top plate is driven by a pushing component, and the other end of the top plate is fixedly provided with a plurality of ejector pins penetrating through the demolding module, which are used to push and demold the injection molded part from the inside. On both horizontal sides of the moving mold, a set of hinge seats are installed in a sliding manner. On each set of hinge seats, a set of pressing arms are rotatably installed. The two sets of pressing arms are driven by a driven component and perform a 90° forward and reverse deflection movement, which is used to externally assist in pushing and demolding the injection molded part.

[0008] Inner clamping strips are distributed around the side wall of the demolding module. A plurality of outer clamping strips perform a telescopic movement under the push of the second linkage component, which is used to reduce the friction force of the injection molded part during internal demolding.

[0009] Preferably, an L-shaped sliding groove for accommodating the sliding of the hinge seat is opened on the side wall of the moving mold. The L-shaped sliding groove is installed in a limited sliding manner with a transition push column. On both sides of the upper end of the transition push column, a set of limit blocks are fixedly connected. The limit blocks are installed in the moving mold in a limited sliding manner, and a second spring is fixedly connected to the lower end thereof. The lower end of the transition push column penetrates through the bottom wall of the moving mold and is in contact connection with an assembly seat. A rectangular through hole for accommodating the transition push column is opened on the upper end wall of the assembly seat.

[0010] Preferably, a fitting cavity for accommodating the first linkage component is arranged in the fixed mold. The first linkage component includes a first spring, a main push plate, a longitudinal push bar, and a connecting frame. The outer clamping strip extends into the inner side of the fixed mold from the sunken groove and is fixedly connected to the connecting frame. The connecting frame and the main push plate are both installed in the fixed mold in a limited sliding manner. A driving inclined groove for accommodating the longitudinal push bar is opened on the side wall of the connecting frame. One end of the longitudinal push bar away from the driving inclined groove is fixedly connected to the main push plate. A first spring is fixedly arranged on one side of the main push plate, and the other side of the main push plate extends out of the fixed mold and is connected to the outer wall of the moving mold.

[0011] Preferably, a cylindrical groove for accommodating the fitting column is opened on the side of the fixed mold close to the moving mold. A pushing component is arranged inside the moving mold. The pushing component includes a main push cylinder. The end cover of the main push cylinder is fixedly arranged in the moving mold. The piston rod of the main push cylinder extends outwards and is fixedly connected to the top plate. A driven component is arranged inside the top plate.

[0012] Preferably, the driven component includes a transverse moving plate, a cylindrical pin, a cross moving plate, and a longitudinal push cylinder. The cross moving plate is installed in the top plate in a limited sliding manner. The piston rod of the longitudinal push cylinder extends downwards and is fixedly connected to the top wall of the cross moving plate. Cylindrical pins are fixedly connected to both horizontal ends of the cross moving plate.

[0013] Preferably, one end of the lateral moving plate is provided with a lateral inclined groove for accommodating a cylindrical pin, the other end of the lateral moving plate extends into the hinge seat and is fixedly connected with a lateral rack, the lateral rack is installed in the hinge seat in a limited sliding manner and is meshed with the rotating wheel, one end of the pressing arm is fixedly connected with the rotating wheel coaxially, and the other end of the pressing arm is fixedly connected with an outer pressing plate.

[0014] Preferably, a second linkage assembly connected to the ejector rod is arranged on the moving mold. The second linkage assembly includes a lateral push rod and a matching push bar. The matching push bar is installed in the moving mold in a limited sliding manner, and a pushing chute is formed through the matching push bar. The pushing chute is composed of an inclined chute and a straight chute. One end of the lateral push rod is fixedly connected to the ejector rod, and the other end of the lateral push rod is inserted into the pushing chute.

[0015] Preferably, one end of the matching push bar away from the inclined chute extends into the demolding block and is fixedly connected with a cross plate. The cross plate is installed in the demolding block in a limited sliding manner, and an inner clamping bar is fixedly connected to one end of the cross plate away from the matching push bar.

[0016] An edge burr waste treatment and recycling device is applied to an injection mold for a battery slot, and includes a recycling bin. A rectangular slot for accommodating the recycling bin is formed at the lower end between the fixed mold and the moving mold of the assembly seat. The recycling bin is driven by a linkage assembly to perform linear up and down movement, and the linkage assembly is provided with a driving force by a transition push column; a circulation pipe is arranged at the lower end of the recycling bin, a support and a receiving rod are sequentially arranged from left to right at the top of the recycling bin, a grinding wheel is installed on the support, and a group of side baffles are arranged on both the front and back sides of the recycling bin.

[0017] Preferably, the linkage assembly includes a fixed rack, a spur gear, a moving tooth plate, a third spring, and a driven push column. The fixed rack is fixedly arranged on the side wall of the recycling bin. The spur gear is installed in the assembly seat in a limited sliding manner and is meshed with the fixed rack and the moving tooth plate on both sides in sequence. The lower end of the moving tooth plate is fixedly connected with the third spring, the upper end of the moving tooth plate is fixedly connected with the driven push column, and the driven push column extends out of the top wall of the assembly seat and is in contact connection with the transition push column.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0019] 1. By providing the outer clamping bar and the inner clamping bar that perform telescopic movement, the present invention can effectively reduce the contact area between the inner and outer sides of the injection molded part and the mold during demolding, achieve the effects of reducing stress concentration and friction, and reduce the possibility of the molded part getting stuck in the mold; and by the cooperation of multiple ejector rods distributed in a matrix and the outer pressing plate to push for demolding, the ejection force applied to the injection molded part can be effectively dispersed, reducing the risk of deformation or damage of the injection molded part, thereby ensuring the smooth demolding of the injection molded part, reducing the demolding time, and improving the production efficiency.

[0020] 2. The present invention uses a first spring, a main push plate, a longitudinal push bar, and a connection frame in combination. On the one hand, it enables the outer clamping strip to extend outwards when the fixed mold and the moving mold are in contact, ensuring the integrity of the forming cavity. On the other hand, when the demolding block gradually disengages from the sunk groove, the outer clamping strip can quickly retract inwards, thereby reducing the contact area between the injection molded part and the inner wall of the sunk groove, helping to reduce the friction suffered by the injection molded part when the demolding block separates from the fixed mold; facilitating the smooth extraction of the demolding block from the sunk groove.

[0021] 3. The present invention uses a rotating wheel, a transverse rack, a transverse moving plate, a cylindrical pin, and a cross moving plate in combination, which can convert the longitudinal driving force of the longitudinal push cylinder into a 90° forward and reverse rotational movement of two sets of pressing arms, enabling the outer pressing plate to tightly press or release the injection molded part well. By using the active push cylinder to push the top plate for horizontal movement, the outer pressing plate can not only maintain lateral pressing on the injection molded part but also apply force together with the ejector pin rod to push the injection molded part out of the mold. This way of applying force for demolding by combining the inner and outer sides makes the demolding process more stable and less likely to fail or get stuck, thus ensuring the continuity of production.

[0022] 4. By using a lateral push rod, a cooperating push bar, a pushing chute, and a cross plate in combination, the inner clamping strip can adaptively perform telescopic movement according to the movement state of the ejector pin rod. When the ejector pin rod retracts inwards, the inner clamping strip extends outwards to ensure the integrity of the surface of the demolding block; when the ejector pin rod extends outwards, the inner clamping strip immediately retracts inwards, thereby reducing the contact area between the injection molded part and the side wall of the demolding block, helping to reduce the friction suffered by the injection molded part when separating from the demolding block; facilitating the smooth extraction of the injection molded part from the demolding block.

[0023] 5. Through the design of a fixed rack, a spur gear, a moving toothed plate, a third spring, and a driven push column, the downward driving force of the transition push column can be converted into a linear up and down movement of the recovery bin. While the outer pressing plate conveys the demolded battery slot downwards, the grinding wheel can move upwards together with the recovery bin, thereby cutting and grinding the burrs on the battery slot, and the cut waste can fall into the recovery bin for centralized treatment, thus avoiding secondary processing of the injection molded part in subsequent operations and reducing labor and time costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a three-dimensional schematic diagram of the structure of the present invention.

[0025] Figure 2 It is a schematic diagram of another perspective of the structure of the present invention.

[0026] Figure 3 It is a three-dimensional schematic diagram of the injection mold of the present invention.

[0027] Figure 4 It is a schematic diagram of the fixed mold of the present invention.

[0028] Figure 5 It is a schematic cross-sectional view of the fixed mold of the present invention.

[0029] Figure 6 It is an exploded schematic diagram of the fixed mold of the present invention.

[0030] Figure 7 It is a three-dimensional schematic diagram of the movable mold of the present invention.

[0031] Figure 8 It is a schematic cross-sectional view of the movable mold of the present invention.

[0032] Figure 9 It is a connection schematic diagram of the stripping module, the ejector rod, the ejector plate and the pressing arm of the present invention.

[0033] Figure 10 It is an exploded schematic diagram of the ejector rod, the matching push rod and the stripping module of the present invention.

[0034] Figure 11 It is a schematic diagram of the pressure arm and transition push column of the present invention.

[0035] Figure 12 It is a schematic diagram of the assembly seat and the edge burr waste processing and recycling device of the present invention.

[0036] Figure 13 It is a schematic diagram of the edge burr waste processing and recycling device of the present invention.

[0037] Figure 14 This is a schematic diagram of the edge burr waste processing and recycling device of the present invention from another perspective.

[0038] In the figure: 1, fixed mold; 101, sink; 102, injection hole; 2, movable mold; 3, spring No. 1; 4, main push plate; 5, longitudinal push strip; 6, connecting frame; 601, driving inclined groove; 7, outer clamping strip; 8, stripping module; 9, fitting column; 10, ejector rod; 11, ejector plate; 12, active push cylinder; 13, lateral push rod; 14, matching push strip; 1401, pushing slide; 15, horizontal plate; 16, inner clamping strip; 17, outer pressure plate; 18, pressure arm; 19, rotating wheel; 20, horizontal rack; 21. Lateral moving plate; 22. Lateral inclined groove; 23. Cylindrical pin; 24. Cross moving plate; 25. Longitudinal push cylinder; 26. Articulated seat; 27. Transition push column; 28. Limit block; 29. ​​No. 2 spring; 30. Assembly seat; 31. Recovery bin; 32. Side baffle; 33. Circulation pipe; 34. Bracket; 35. Grinding wheel; 36. Receiver rod; 37. Fixed rack; 38. Spur gear; 39. Moving gear plate; 40. No. 3 spring; 41. Driven push column; 42. Battery slot; 43. Burr. DETAILED DESCRIPTION

[0039] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. 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.

[0040] Please refer to Figures 1 to 14 , the present invention provides a technical solution: an injection mold for a battery slot, including a fixed mold 1 and a movable mold 2. An assembly seat 30 is arranged at the lower end of the fixed mold 1. The movable mold 2 is installed on the assembly seat 30 in a limited sliding manner and is horizontally pushed by a hydraulic cylinder to realize the close fitting or separation of the movable mold 2 and the fixed mold 1. A demolding block 8 protrudes from the side of the movable mold 2 close to the fixed mold 1. A sunk groove 101 for accommodating the demolding block 8 is formed on the fixed mold 1. A molding cavity for accommodating the battery slot 42 is formed between the demolding block 8 and the sunk groove 101. An injection hole 102 is formed at one end of the sunk groove 101 away from the fixed mold 1. Outer clamping strips 7 are distributed around the side wall of the sunk groove 101. Multiple groups of outer clamping strips 7 perform telescopic movement under the push of a first linkage component to reduce the friction force for the injection molded part to be demolded from the outside. Four fitting columns 9 are arranged on the outer periphery of the demolding block 8. The fitting columns 9 are fixedly arranged on the side wall of the movable mold 2. A top plate 11 is installed in the movable mold 2 in a limited sliding manner. One end of the top plate 11 is driven by a pushing component, and the other end of the top plate 11 is fixedly provided with multiple ejector rod 10 penetrating through the demolding block 8 to push and demold the injection molded part from the inside. A set of hinge seats 26 are slidably installed on both horizontal sides of the movable mold 2. A set of pressing arms 18 are rotatably installed on each set of hinge seats 26. The two sets of pressing arms 18 are driven by a driven component and perform a 90° forward and reverse deflection movement to perform external auxiliary pushing and demolding on the injection molded part. Inner clamping strips 16 are distributed around the side wall of the demolding block 8. Multiple groups of outer clamping strips 7 perform telescopic movement under the push of a second linkage component to reduce the friction force for the injection molded part to be demolded from the inside.

[0041] Furthermore, by setting the outer clamping strips 7 and the inner clamping strips 16 that perform telescopic movement, the present invention can effectively reduce the contact area between the inside and outside of the injection molded part and the mold during demolding, achieve the effects of reducing stress concentration and friction, and reduce the possibility of the molded part getting stuck in the mold. And by cooperating with the outer pressing plate 17 to push and demold with multiple ejector rods 10 distributed in a matrix, the ejection force applied to the injection molded part can be effectively dispersed, reducing the risk of deformation or damage of the injection molded part, thereby ensuring the smooth demolding of the injection molded part, reducing the demolding time, and improving production efficiency.

[0042] Such as Figure 2 , Figure 7 , and Figure 8As shown in the figure, an L-shaped chute for accommodating the sliding of the hinge seat 26 is provided on the side wall of the moving mold 2. A transition push rod 27 is installed in the L-shaped chute in a limited sliding manner. On both sides of the upper end of the transition push rod 27, a group of limit blocks 28 are fixedly connected. The limit blocks 28 are installed in the moving mold 2 in a limited sliding manner, and a second spring 29 is fixedly connected to the lower end thereof. The lower end of the transition push rod 27 penetrates through the bottom wall of the moving mold 2 and is in contact connection with the assembly seat 30. A rectangular through hole for accommodating the transition push rod 27 is provided on the upper end wall of the assembly seat 30.

[0043] Specifically, when the hinge seat 26 squeezes the transition push rod 27 to move downward, the transition push rod 27 moves downward and pushes the driven push rod 41; when the hinge seat 26 moves upward, the transition push rod 27 quickly moves upward under the elastic force of the second spring 29.

[0044] As Figures 4 - 6 shown in the figure, a matching cavity for accommodating the first linkage assembly is provided in the fixed mold 1. The first linkage assembly includes a first spring 3, a main push plate 4, a longitudinal push bar 5, and a connection frame 6. The outer side strip 7 extends into the inner side of the fixed mold 1 from the sunk groove 101 and is fixedly connected to the connection frame 6. The connection frame 6 and the main push plate 4 are both installed in the fixed mold 1 in a limited sliding manner. A driving inclined groove 601 for accommodating the longitudinal push bar 5 is provided on the side wall of the connection frame 6. One end of the longitudinal push bar 5 away from the driving inclined groove 601 is fixedly connected to the main push plate 4. A first spring 3 is fixedly arranged on one side of the main push plate 4, and the other side of the main push plate 4 extends out of the fixed mold 1 and is connected to the outer wall of the moving mold 2.

[0045] Furthermore, in the present invention, through the cooperation of the first spring 3, the main push plate 4, the longitudinal push bar 5, and the connection frame 6, on the one hand, the outer side strip 7 can extend outward when the fixed mold 1 and the moving mold 2 are in contact, ensuring the integrity of the molding cavity; on the other hand, when the demolding block 8 gradually disengages from the sunk groove 101, the outer side strip 7 can quickly retract inward, thereby reducing the contact area between the injection molded part and the inner wall of the sunk groove 101, helping to reduce the friction suffered by the injection molded part when the demolding block 8 separates from the fixed mold 1; and facilitating the smooth extraction of the demolding block 8 from the sunk groove 101.

[0046] As Figure 8 、 Figure 9 and Figure 11As shown in the figure, a cylindrical groove for accommodating the fitting post 9 is provided on one side of the fixed mold 1 close to the moving mold 2. A pushing assembly is arranged inside the moving mold 2. The pushing assembly includes a main pushing cylinder 12. The end cover of the main pushing cylinder 12 is fixedly arranged inside the moving mold 2. The piston rod of the main pushing cylinder 12 extends outwards and is fixedly connected to the top plate 11. A driven assembly is arranged inside the top plate 11. The driven assembly includes a lateral moving plate 21, a cylindrical pin 23, a cross moving plate 24 and a longitudinal pushing cylinder 25. The cross moving plate 24 is installed in the top plate 11 in a limited sliding manner. The piston rod of the longitudinal pushing cylinder 25 extends downwards and is fixedly connected to the top wall of the cross moving plate 24. Cylindrical pins 23 are fixedly connected to both horizontal ends of the cross moving plate 24. A lateral inclined groove 22 for accommodating the cylindrical pin 23 is provided at one end of the lateral moving plate 21. The other end of the lateral moving plate 21 extends into the hinge seat 26 and is fixedly connected to a lateral rack 20. The lateral rack 20 is installed in the hinge seat 26 in a limited sliding manner and is meshed with the rotating wheel 19. One end of the pressing arm 18 is fixedly connected to the rotating wheel 19 coaxially. The other end of the pressing arm 18 is fixedly connected to an outer pressing plate 17.

[0047] Furthermore, by setting the rotating wheel 19, the lateral rack 20, the lateral moving plate 21, the cylindrical pin 23 and the cross moving plate 24 to cooperate, the longitudinal driving force of the longitudinal pushing cylinder 25 can be converted into the 90° forward and reverse rotational movements of the two pressing arms 18, so that the outer pressing plate 17 can tightly press or loosen the injection molded part well. By pushing the top plate 11 horizontally through the main pushing cylinder 12, the outer pressing plate 17 can not only keep laterally pressing the injection molded part, but also push the injection molded part out of the mold with the ejector pin rod 10 at the same time. This way of applying force for demolding by combining the inner and outer sides makes the demolding process more stable and not prone to failure or jamming, thus ensuring the continuity of production.

[0048] As Figures 8 - 10 shown in the figure, a second linkage assembly connected to the ejector pin rod 10 is arranged on the moving mold 2. The second linkage assembly includes a lateral push rod 13 and a cooperating push bar 14. The cooperating push bar 14 is installed in the moving mold 2 in a limited sliding manner, and a pushing chute 1401 is formed through the cooperating push bar 14. The pushing chute 1401 is composed of an inclined chute and a straight chute. One end of the lateral push rod 13 is fixedly connected to the ejector pin rod 10. The other end of the lateral push rod 13 is inserted into the pushing chute 1401. One end of the cooperating push bar 14 away from the inclined chute extends into the demolding block 8 and is fixedly connected to a cross plate 15. The cross plate 15 is installed in the demolding block 8 in a limited sliding manner, and an inner clamping strip 16 is fixedly connected to the end of the cross plate 15 away from the cooperating push bar 14.

[0049] Furthermore, by setting up the lateral push rod 13, cooperating with the push bar 14, the pushing chute 1401 and the cross plate 15, the inner clamping strip 16 can adaptively expand and contract according to the movement state of the ejector pin rod 10. When the ejector pin rod 10 retracts inward, the inner clamping strip 16 extends outward to ensure the integrity of the surface of the demolding block 8; when the ejector pin rod 10 extends outward, the inner clamping strip 16 immediately retracts inward, thereby reducing the contact area between the injection molded part and the side wall of the demolding block 8, which helps to reduce the friction when the injection molded part separates from the demolding block 8 and helps the injection molded part to be smoothly pulled out from the demolding block 8.

[0050] When injection molding is carried out, the moving mold 2 is pushed towards the fixed mold 1 by opening the hydraulic cylinder until the two are tightly abutted against each other. During this process, the main push plate 4 is extruded by the outer wall of the moving mold 2 and thus moves inward towards the inside of the fixed mold 1. The longitudinal push bar 5 on the main push plate 4 acts on the driving inclined groove 601, so that the connecting frame 6 is stressed to drive the outer clamping strip 7 to extend outward to keep the side wall of the sinking groove 101 flat; then the heated and molten plastic element enters the molding cavity formed by the sinking groove 101 and the demolding block 8 through the injection port, and finally forms the battery groove 42 injection molded part after cooling and solidification.

[0051] When demolding, first, the moving mold and the fixed mold 1 are gradually separated by opening the hydraulic cylinder again. During this process, the main push plate 4 quickly extends outward under the elastic force of the first spring 3. The longitudinal push bar 5 on the main push plate 4 acts on the driving inclined groove 601 again, so that the connecting frame 6 is stressed to drive the outer clamping strip 7 to retract inward, making a plurality of regularly sized and evenly distributed rectangular grooves appear on the side wall of the sinking groove 101; thereby reducing the contact area between the injection molded part and the inner wall of the sinking groove 101, which helps to reduce the friction of the injection molded part when the demolding block 8 separates from the fixed mold 1 and helps the demolding block 8 to be smoothly withdrawn from the sinking groove 101; after the moving mold 2 and the fixed mold 1 are completely separated, by opening the longitudinal push cylinder 25, its piston rod extends outward and pushes the cross moving plate 24 to move downward by a certain distance and then remains stationary. At this time, the cylindrical pin 23 on the cross moving plate 24 acts on the lateral inclined groove 22, so that the lateral moving plate 21 is stressed to drive the lateral rack 20 to move towards the cross moving plate 24. The lateral rack 20 acts on the rotating wheel 19, so that the pressing arm 18 drives the two groups to rotate 90° and presses the horizontal sides of the battery groove 42; then the active push cylinder 12 is opened to push the top plate 11 towards the fixed mold 1, so that while the outer pressing plate 17 keeps laterally pressing the injection molded part, it can also apply force together with the ejector pin rod 10 to push the injection molded part out of the mold. This way of applying force inside and outside for demolding makes the demolding process more stable and not prone to failure or jamming,

[0052] thus ensuring the continuity of production.

[0053] Refer to Figures 12 to 14, An edge burr waste treatment and recycling device, which is applied to an injection mold for a battery slot, includes a recycling bin 31. A rectangular slot for accommodating the recycling bin 31 is opened at the lower end between the fixed mold 1 and the movable mold 2 of the assembly seat 30. The recycling bin 31 is driven by a linkage component and moves linearly up and down. The linkage component is driven by a transition push rod 27; a circulation pipe 33 is arranged at the lower end of the recycling bin 31. A bracket 34 and a receiving rod 36 are sequentially arranged from left to right at the top of the recycling bin 31. A grinding wheel 35 is installed on the bracket 34, and a group of side baffles 32 are arranged on both the front and rear sides of the recycling bin 31. The linkage component includes a fixed rack 37, a spur gear 38, a movable rack 39, a third spring 40 and a driven push rod 41. The fixed rack 37 is fixedly arranged on the side wall of the recycling bin 31. The spur gear 38 is installed in the assembly seat 30 with limited sliding, and its two sides are sequentially meshed with the fixed rack 37 and the movable rack 39. The lower end of the movable rack 39 is fixedly connected to the third spring 40, and the upper end of the movable rack 39 is fixedly connected to the driven push rod 41. The driven push rod 41 extends out of the top wall of the assembly seat 30 and is in contact connection with the transition push rod 27.

[0054] Furthermore, through the design of the fixed rack 37, the spur gear 38, the movable rack 39, the third spring 40 and the driven push rod 41, the downward driving force of the transition push rod 27 can be converted into the linear up and down movement of the recycling bin 31. When the outer pressing plate 17 conveys the demolded battery slot 42 downward, the grinding wheel 35 can move upward together with the recycling bin 31, so as to cut and grind the burrs 43 on the battery slot 42, and the cut waste can fall into the recycling bin 31 for centralized treatment, thus avoiding the secondary processing of the injection molded parts in the subsequent operation and reducing the labor and time costs.

[0055] When the battery slot 42 is completely separated from the removal module 8, the active push cylinder 12 stops operating; at this time, the top plate 11 remains in the moved position unchanged, and then the longitudinal push cylinder 25 is continued to be opened, so that its piston rod continues to extend downward. At this time, the cylindrical pin 23 acts on the bottom wall of the lateral inclined groove 22, so that the lateral moving plate 21 is stressed and drives the hinge seat 26 to move downward together. The hinge seat 26 acts on the pressing arm 18, so that the outer pressing plate 17 continues to press the battery slot 42 and convey it downward together. During this process, the transition push column 27 is squeezed by the hinge seat 26 and extends into the assembly seat 30 and pushes the driven push column 41. The driven push column 41 drives the moving toothed plate 39 to squeeze the third spring 40 and move downward. The moving toothed plate 39 acts on the fixed rack 37 through the spur gear 38, so that the fixed rack 37 is stressed and drives the recycling bin 31 to move upward. The grinding wheel 35 on the recycling bin 31 then moves upward and cuts and grinds the burrs 43 on the battery slot 42. The cut burrs 43 fall into the recycling bin 31 for centralized recycling and treatment; after the battery slot 42 is polished, the longitudinal push cylinder 25 is opened again, so that the piston rod of the longitudinal push cylinder 25 retracts inward. At this time, the outer pressing plate 17 first drives the battery slot 42 to move upward and then releases the battery slot 42 for the next processing step.

[0056] Although the embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A battery container injection mold, comprising a fixed mold (1) and a movable mold (2), characterized in that: The lower end of the fixed mold (1) is provided with an assembly seat (30), the movable mold (2) is limitedly slidably mounted on the assembly seat (30), a stripping module (8) is protrudingly provided on a side of the movable mold (2) close to the fixed mold (1), the fixed mold (1) is provided with a sink (101) for accommodating the stripping module (8), an injection hole (102) is provided at one end of the sink (101) away from the fixed mold (1), and outer clips (7) are distributed around the side walls of the sink (101), and a plurality of groups of outer clips (7) perform telescopic movement under the push of the first linkage component, so as to reduce the friction force of the injection molded part being stripped from the outside; Four interlocking columns (9) are arranged on the periphery of the stripping module (8), and the interlocking columns (9) are fixedly arranged on the side wall of the movable mold (2). A top plate (11) is slidably installed inside the movable mold (2), and one end of the top plate (11) is driven by a pushing assembly, and the other end of the top plate (11) is fixedly provided with a plurality of ejector rods (10) that penetrate the stripping module (8) and are used to push the injection molded part from the inside to be demoulded; a group of hinged seats (26) are slidably installed on both horizontal sides of the movable mold (2), and a group of pressing arms (18) are rotatably installed on each group of hinged seats (26), and the two groups of pressing arms (18) are driven by a driven assembly and perform a forward and reverse 90° deflection movement, and are used to externally assist in pushing the injection molded part to be demoulded; Inner clamping strips (16) are distributed around the side walls of the demoulding module (8), and multiple groups of outer clamping strips (7) perform telescopic movement under the promotion of the second linkage component, so as to reduce the friction force of the injection molded part being demoulded from the inside.

2. A battery container injection mold according to claim 1, characterized in that: The side wall of the movable mold (2) is provided with an L-shaped slide groove for accommodating the sliding of the hinge seat (26); the L-shaped slide groove is provided with a transition push column (27) for limited sliding installation; a group of limit blocks (28) are fixedly connected to both sides of the upper end of the transition push column (27); the limit blocks (28) are limitedly slidably installed in the movable mold (2) and a second spring (29) is fixedly connected to the lower end thereof; the lower end of the transition push column (27) penetrates the bottom wall of the movable mold (2) and contacts the connected assembly seat (30); the upper end wall of the assembly seat (30) is provided with a rectangular through hole for accommodating the transition push column (27).

3. A battery container (42) injection mold according to claim 2, characterized in that: The fixed mold (1) is provided with a matching cavity for accommodating a first linkage component, the first linkage component comprises a No. 1 spring (3), a main push plate (4), a longitudinal push strip (5) and a connecting frame (6), the outer clamping strip (7) extends from the self-sinking groove (101) into the inner side of the fixed mold (1) and is fixedly connected to the connecting frame (6), the connecting frame (6) and the main push plate (4) are both limitedly slidably installed in the fixed mold (1), a driving inclined groove (601) for accommodating the longitudinal push strip (5) is opened on the side wall of the connecting frame (6), the end of the longitudinal push strip (5) away from the driving inclined groove (601) is fixedly connected to the main push plate (4), one side of the main push plate (4) is fixedly provided with a No. 1 spring (3), and the other side of the main push plate (4) extends out of the fixed mold (1) and is connected to the outer wall of the movable mold (2).

4. A battery container injection mold according to claim 3, characterized in that: A columnar groove for accommodating the engaging column (9) is provided on a side of the fixed mold (1) close to the movable mold (2), and a pushing assembly is arranged inside the movable mold (2). The pushing assembly comprises an active pushing cylinder (12), an end cover of the active pushing cylinder (12) is fixedly arranged in the movable mold (2), a piston rod of the active pushing cylinder (12) extends outward and is fixedly connected to the top plate (11), and a driven assembly is arranged inside the top plate (11).

5. A battery container injection mold according to claim 4, characterized in that: The driven assembly comprises a transverse moving plate (21), a cylindrical pin (23), a cross moving plate (24) and a longitudinal push cylinder (25); the cross moving plate (24) is slidably mounted in the top plate (11) in a limited manner; a piston rod of the longitudinal push cylinder (25) extends downward and is fixedly connected to the top wall of the cross moving plate (24); and both horizontal ends of the cross moving plate (24) are fixedly connected to the cylindrical pins (23).

6. A battery container injection mold according to claim 5, characterized in that: One end of the transverse movable plate (21) is provided with a lateral inclined groove (22) for accommodating a cylindrical pin (23); the other end of the transverse movable plate (21) extends into the hinge seat (26) and is fixedly connected to a transverse rack (20); the transverse rack (20) is limitedly slidably installed in the hinge seat (26) and meshingly connected to the rotating wheel (19); one end of the pressure arm (18) is coaxially fixedly connected to the rotating wheel (19); and the other end of the pressure arm (18) is fixedly connected to an outer pressure plate (17).

7. A battery container injection mold according to claim 6, characterized in that: The movable mold (2) is provided with a second linkage assembly connected to the ejector rod (10), the second linkage assembly comprising a lateral push rod (13) and a matching push strip (14), the matching push strip (14) being slidably installed in the movable mold (2), and a push slide groove (1401) is provided through the matching push strip (14), the push slide groove (1401) being composed of an oblique groove and a linear groove, one end of the lateral push rod (13) being fixedly connected to the ejector rod (10), and the other end of the lateral push rod (13) being inserted into the push slide groove (1401).

8. A battery container injection mold according to claim 7, characterized in that: The end of the matching push strip (14) away from the oblique groove extends into the stripping module (8) and is fixedly connected to the transverse plate (15); the transverse plate (15) is slidably installed in the stripping module (8) with limited position, and the end of the transverse plate (15) away from the matching push strip (14) is fixedly connected to the inner clamping strip (16).

9. An edge burr waste processing and recycling device, applied to the battery container injection mold according to claim 8, comprising a recycling bin (31), characterized in that: The assembly seat (30) is provided with a rectangular slot for accommodating a recovery bin (31) at the lower end between the fixed die (1) and the movable die (2). The recovery bin (31) is driven by a linkage assembly and moves up and down in a straight line. The linkage assembly is provided with a driving force by a transition push column (27). A circulation pipe (33) is provided at the lower end of the recovery bin (31). A bracket (34) and a receiving rod (36) are provided at the top of the recovery bin (31) from left to right. A grinding wheel (35) is installed on the bracket (34). A set of side baffles (32) are provided on both the front and rear sides of the recovery bin (31).

10. The device for processing and recovering edge burr waste according to claim 9, characterized in that: The linkage assembly comprises a fixed rack (37), a spur gear (38), a movable tooth plate (39), a third spring (40) and a driven push column (41); the fixed rack (37) is fixedly arranged on the side wall of the recovery bin (31); the spur gear (38) is limitedly slidably installed in the assembly seat (30) and its two sides are meshed and connected with the fixed rack (37) and the movable tooth plate (39) in sequence; the lower end of the movable tooth plate (39) is fixedly connected to the third spring (40); the upper end of the movable tooth plate (39) is fixedly connected to the driven push column (41); the driven push column (41) extends out of the top wall of the assembly seat (30) and is in contact with the transition push column (27).

Citation Information

Patent Citations

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