A multi-specification injection mold ejection mechanism

Abstract

The utility model relates to injection mold technical field, concretely is a kind of multi-specification injection mold ejection mechanism, including equipment support, the inside of equipment support is provided with fixed mould and movable mould, the left and right sides of equipment support are respectively equipped with injection barrel and hydraulic cylinder, the inside of movable mould is provided with multiple positioning slots, limiting slot, installation slot, the inside of positioning slot, limiting slot and installation slot is provided with ejection assembly, and ejection assembly includes jack, locating block, plug-in block, connecting groove, adjusting groove, locking block, adjusting block, locking spring, locking sleeve, first plug-in slot, second plug-in slot, fixed shaft sleeve, buffer spring;Plug-in block is inserted from the inside of second plug-in slot, locking spring pushes locking block outward, so that it is clamped in the right end of second plug-in slot, plug-in block is tightly fixed in the inside of second plug-in slot, it is convenient to replace buffer spring while effectively improving the stability of jack and locking sleeve connection, improve equipment use safety, improve equipment production efficiency.

Description

Technical Field

[0001] This utility model relates to the field of injection mold technology, and specifically to an ejection mechanism for multi-specification injection molds. Background Technology

[0002] Injection molds are key equipment in the production of plastic products. The performance of their ejection mechanisms directly affects the quality of the products and production efficiency. CN222645244U discloses an ejection mechanism for an injection mold, including a mold base, a push plate, a telescopic rod, a concave mold plate, a top plate, and a buffer spring. The push plate is located on the output end of the mold base, and the top plate is attached to one side of the push plate. One end of the telescopic rod is slidably connected to the push plate, and the other end is fixedly connected to the concave mold plate through the top plate. Two second ejector rods are fixedly connected to one side of the push plate, and these second ejector rods slide inside the top plate. This invention allows one end of a rotating fixing rod to detach from the connector, separating one end of the second ejector rod from one end of the first ejector rod. The other end of the second ejector rod is rotatably connected to a third ejector rod, allowing the angle between the ends of the first and second ejector rods to be rotated. When the angle is appropriate, the buffer spring can be removed from the first ejector rod, eliminating the need to disassemble multiple ejector rods from the mold separately, making spring replacement more convenient.

[0003] This device fixes the first and second push rods by rotating the protrusion through the through slot into the circular slot. Although it facilitates the disassembly and assembly of the buffer spring, the fixing rods lack effective fixation. In addition, the equipment will vibrate during use, which may cause the fixing rods to fall off, affecting the safety of equipment use and requiring shutdown for maintenance, thus affecting production efficiency.

[0004] Therefore, it is necessary to invent a multi-specification injection mold ejection mechanism to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide an ejection mechanism for injection molds of various specifications, in order to solve the problems in the technology where the fixing rod may fall off, affecting the safety of equipment use and requiring downtime for maintenance, thus affecting production efficiency.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a multi-specification injection mold ejection mechanism, including an equipment support, a fixed mold and a moving mold are arranged inside the equipment support, an injection cylinder and a hydraulic cylinder are respectively installed on the left and right sides of the equipment support, the moving mold has multiple sets of positioning grooves, limiting grooves and mounting grooves inside, and an ejection assembly is arranged inside the positioning grooves, limiting grooves and mounting grooves, the ejection assembly includes an ejector rod, a positioning block, a plug-in block, a connecting groove, an adjusting groove, a locking block, an adjusting block, a locking spring, a locking sleeve, a first plug-in groove, a second plug-in groove, a fixed bushing and a buffer spring.

[0007] By adopting the above technical solution, when the moving mold moves to the right, it drives the ejector rod to move to the right. When the right end of the ejector rod contacts the right wall of the equipment support, the ejector rod pushes out to the left to automatically unload the product. When the moving mold moves to the left, the buffer spring automatically resets the ejector rod.

[0008] Optionally, the fixed mold is fixedly connected to the left inner wall of the equipment support, the moving mold is located on the right side of the fixed mold, the piston rod in the hydraulic cylinder is fixedly connected to the right side surface of the moving mold, and the discharge pipe of the injection cylinder is fixedly connected to the fixed mold.

[0009] By adopting the above technical solution, the hydraulic cylinder is used to drive the moving mold to move left and right, and the injection cylinder is used to inject material between the fixed mold and the moving mold.

[0010] Optionally, positioning sleeves are fixedly connected to both the front and rear surfaces of the moving mold, and linear guide rails are fixedly connected to both the front and rear sides between the inner walls of the left and right sides of the equipment bracket, with the positioning sleeves slidably connected to the linear guide rails.

[0011] By adopting the above technical solution, the positioning sleeve slides left and right on the surface of the linear guide rail during the movement of the moving mold, thereby improving the stability of the moving mold during the movement process.

[0012] Optionally, the positioning groove is formed on the right side surface of the moving mold, the limiting groove is formed on the left side surface of the moving mold, the positioning groove and the limiting groove are connected, and the mounting groove is formed at the right end of the positioning groove.

[0013] Optionally, the fixed bushing is fixedly installed inside the mounting groove, the push rod is slidably connected to the fixed bushing and the limiting groove, the positioning block is fixed on the surface of the push rod, the positioning block is slidably connected to the positioning groove, the insertion block is fixedly connected to the right end of the push rod, the locking sleeve is fixed on the outside of the insertion block, the buffer spring is sleeved on the surface of the push rod, and the surfaces of the fixed bushing and the positioning groove are both fixedly connected to limiting rings. The two ends of the buffer spring are respectively locked inside the left and right sets of limiting rings.

[0014] By adopting the above technical solution, the push rod slides left and right inside the limiting groove and the fixed bushing. The fixed bushing is fixed inside the mounting groove by screws, and the positioning block slides left and right inside the positioning groove to limit the position of the push rod.

[0015] Optionally, the first insertion groove is formed on the right side surface of the locking sleeve, the second insertion groove is formed on the left side surface of the locking sleeve, the first insertion groove and the second insertion groove are connected to each other, and multiple sets of rubber gaskets are fixedly connected to the right side surface of the locking sleeve.

[0016] By adopting the above technical solution, the rubber gasket buffers the locking sleeve, reduces the noise when the locking sleeve contacts the equipment bracket, and reduces the wear between the locking sleeve and the equipment bracket.

[0017] Optionally, the upper and lower surfaces of the plug block are provided with connecting grooves, and the right surface of the plug block is provided with two sets of adjusting grooves. The connecting grooves and adjusting grooves are interconnected. The locking block is slidably connected to the connecting groove. One outer end of the locking block is an arc surface. The adjusting block is slidably connected to the adjusting groove. One inner end of the adjusting block is fixedly connected to one inner end of the locking block. The locking spring is disposed inside the connecting groove, and both ends of the locking spring abut against the locking block and the connecting groove, respectively.

[0018] By adopting the above technical solution, the plug block is inserted into the second plug slot from left to right. When the plug block is inserted to the rightmost end, the locking spring will push the locking block outward and lock it at the right end of the second plug slot, thus firmly fixing the plug block inside the second plug slot. This effectively improves the stability of the connection between the push rod and the locking sleeve, thereby improving the stability of the buffer spring during use.

[0019] Optionally, a straight sleeve is fixedly connected to the middle of both the front and rear sides of the right wall of the equipment bracket, and a threaded sleeve is fixedly connected to the upper and lower sides of the straight sleeve on the right wall of the equipment bracket. Two sets of abutment plates are provided on the right side inside the equipment bracket. Support rods are fixedly connected to the upper and lower sides of the abutment plates. The support rods are slidably connected to the straight sleeves. A connecting block is fixedly connected to the middle of the abutment plate. A threaded rod is rotatably connected to the right end of the connecting block. The threaded rod is threadedly connected to the threaded sleeve.

[0020] By adopting the above technical solution and adjusting the left and right positions of the abutment plate, the moving distance of the moving mold is reduced while ensuring that the product can be discharged smoothly, thereby effectively improving production efficiency.

[0021] The technical effects and advantages provided by this utility model in the above technical solution are as follows:

[0022] 1. This utility model, by inserting the plug block into the inside of the second plug slot, and having the locking spring push the locking block outward so that it is stuck at the right end of the second plug slot, tightly fixes the plug block inside the second plug slot. This facilitates the replacement of the buffer spring and effectively improves the stability of the connection between the push rod and the locking sleeve, improves the safety of equipment use, and improves the production efficiency of the equipment.

[0023] 2. By adjusting the left and right positions of the abutment plate, this utility model reduces the moving distance of the moving mold while ensuring that the product can be discharged smoothly, thereby further improving production efficiency. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0025] Figure 2 This is a schematic diagram of the outer structure of the moving mold of this utility model;

[0026] Figure 3 This is a schematic diagram of the internal structure of the moving mold of this utility model;

[0027] Figure 4 This is a schematic diagram of the ejection assembly structure of this utility model;

[0028] Figure 5 This is a schematic diagram of the internal structure of the locking sleeve and the plug block of this utility model;

[0029] Figure 6 This is a schematic diagram of the right side structure of the equipment bracket of this utility model;

[0030] Figure 7 This is a schematic diagram of the abutment plate structure of this utility model.

[0031] Explanation of reference numerals in the attached figures:

[0032] 1. Equipment bracket; 11. Fixed mold; 12. Moving mold; 121. Positioning groove; 122. Limiting groove; 123. Mounting groove; 13. Positioning sleeve; 14. Linear guide rail; 15. Hydraulic cylinder; 16. Injection cylinder; 17. Linear sleeve; 18. Threaded sleeve; 2. Ejection assembly; 21. Ejector rod; 22. Positioning block; 23. Insertion block; 231. Connecting groove; 232. Adjusting groove; 233. Locking block; 234. Adjusting block; 235. Locking spring; 24. Locking sleeve; 241. First insertion groove; 242. Second insertion groove; 243. Rubber gasket; 25. Fixed bushing; 26. Limiting ring; 27. Buffer spring; 3. Abutment plate; 31. Support rod; 32. Connecting block; 33. Threaded rod. Detailed Implementation

[0033] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0034] This utility model provides, for example Figures 1 to 5The ejection mechanism of a multi-specification injection mold shown includes a support frame 1. A fixed mold 11 and a moving mold 12 are disposed inside the support frame 1. The fixed mold 11 is fixedly connected to the left inner wall of the support frame 1. The moving mold 12 is disposed to the right of the fixed mold 11. Positioning sleeves 13 are fixedly connected to both the front and rear surfaces of the moving mold 12. Linear guide rails 14 are fixedly connected to both the front and rear surfaces between the left and right inner walls of the support frame 1. The positioning sleeves 13 are slidably connected to the linear guide rails 14. An injection cylinder 16 and a hydraulic cylinder 15 are respectively installed on the left and right sides of the support frame 1. The piston rod in the hydraulic cylinder 15 is connected to the moving mold 1. The right side surface of 2 is fixedly connected, the discharge pipe of the injection cylinder 16 is fixedly connected to the fixed mold 11, and the interior of the moving mold 12 is provided with multiple sets of positioning grooves 121, limiting grooves 122, and mounting grooves 123. The positioning grooves 121, limiting grooves 122 and mounting grooves 123 are provided with ejection components 2. Ejection components 2 include ejector rods 21, positioning blocks 22, insertion blocks 23, connecting grooves 231, adjusting grooves 232, locking blocks 233, adjusting blocks 234, locking springs 235, locking sleeves 24, first insertion grooves 241, second insertion grooves 242, fixed bushings 25 and buffer springs 27.

[0035] During the injection molding process, the hydraulic cylinder 15 pushes the moving mold 12 to the left, making it fit tightly against the fixed mold 11. Then, the injection cylinder 16 injects the material into the groove between the fixed mold 11 and the moving mold 12. After cooling and solidification, the piston rod in the hydraulic cylinder 15 pulls the moving mold 12 to the right. At this time, the moving mold 12 drives the ejector assembly 2 to move to the right. When the locking sleeve 24 in the ejector assembly 2 contacts the right wall of the equipment support 1, as the moving mold 12 continues to move to the right, the left end of the ejector rod 21 will slide out from the left side surface of the moving mold 12, thereby ejecting the product for unloading. After unloading is completed, as the moving mold 12 moves to the left, the ejector assembly 2 will automatically reset under the action of the buffer spring 27.

[0036] See Figures 2 to 4 The positioning groove 121 is formed on the right side surface of the moving mold 12, and the limiting groove 122 is formed on the left side surface of the moving mold 12. The positioning groove 121 and the limiting groove 122 are connected. The mounting groove 123 is formed at the right end of the positioning groove 121. The fixed bushing 25 is fixedly installed inside the mounting groove 123. The push rod 21 is slidably connected to the fixed bushing 25 and the limiting groove 122. The positioning block 22 is fixed on the surface of the push rod 21 and is slidably connected to the positioning groove 121. The plug block 23 is fixedly connected to the right end of the push rod 21. The locking sleeve 24 is fixed on the outside of the plug block 23. The buffer spring 27 is sleeved on the surface of the push rod 21. The fixed bushing 25 and the surface of the positioning groove 121 are both fixedly connected to the limiting rings 26. The two ends of the buffer spring 27 are respectively stuck inside the left and right sets of limiting rings 26.

[0037] Specifically, during the process of the push rod 21 being pushed out to the left, the push rod 21 slides to the left inside the limiting groove 122 and the fixed bushing 25. At the same time, the positioning block 22 slides to the left inside the positioning groove 121, limiting the position of the push rod 21. During the process of the push rod 21 sliding to the left, the locking sleeve 24 cooperates with the fixed bushing 25 to compress the buffer spring 27. When the right side of the locking sleeve 24 lacks support, the buffer spring 27 will automatically push the push rod 21 and the locking sleeve 24 to the right, so that the push rod 21 is retracted into the limiting groove 122, thus resetting the push rod 21.

[0038] participate Figure 4 and Figure 5 The first insertion groove 241 is formed on the right side surface of the locking sleeve 24, and the second insertion groove 242 is formed on the left side surface of the locking sleeve 24. The first insertion groove 241 and the second insertion groove 242 are connected. Multiple sets of rubber gaskets 243 are fixedly connected to the right side surface of the locking sleeve 24. The upper and lower surfaces of the insertion block 23 are provided with connecting grooves 231. Two sets of adjusting grooves 232 are formed on the right side surface of the insertion block 23. The connecting grooves 231 and the adjusting grooves 232 are connected. The locking block 233 is slidably connected to the connecting grooves 231. One outer end of the locking block 233 is an arc surface. The adjusting block 234 is slidably connected to the adjusting grooves 232. One inner end of the adjusting block 234 is fixedly connected to one inner end of the locking block 233. The locking spring 235 is set inside the connecting groove 231. The two ends of the locking spring 235 abut against the locking block 233 and the connecting groove 231, respectively.

[0039] In addition, during the process of fixing the top rod 21 and the locking sleeve 24, the insertion block 23 is inserted into the second insertion groove 242 from left to right. When the locking block 233 contacts the left edge of the second insertion groove 242, it will automatically slide into the connecting groove 231 as it continues to be pushed. When the insertion block 23 is fully inserted into the second insertion groove 242, the locking block 233 will move into the first insertion groove 241. At this time, the locking block 233, which lacks a limit, will automatically push outward under the action of the locking spring 235 and get stuck at the right end of the second insertion groove 242, thus tightly fixing the insertion block 23 inside the locking sleeve 24, thereby tightly fixing the top rod 21 and the locking sleeve 24.

[0040] Conversely, when disassembling the top rod 21, push both sets of adjusting blocks 234 inward simultaneously to retract the locking block 233 into the connecting groove 231. At this time, the locking sleeve 24 can be separated from the end of the top rod 21, which effectively improves the ease of disassembling and assembling the locking sleeve 24 and the top rod 21, facilitates the replacement of the buffer spring 27, and improves the stability of the connection between the locking sleeve 24 and the top rod 21, thereby improving the safety of equipment use.

[0041] In another embodiment, see [link to relevant documentation] Figure 1 , Figure 6 and Figure 7 A straight sleeve 17 is fixedly connected to the middle of the front and rear sides of the right wall of the equipment bracket 1. A threaded sleeve 18 is fixedly connected to the upper and lower sides of the straight sleeve 17 on the right wall of the equipment bracket 1. Two sets of abutment plates 3 are provided on the right side inside the equipment bracket 1. Support rods 31 are fixedly connected to the upper and lower sides of the abutment plates 3. The support rods 31 are slidably connected to the straight sleeve 17. A connecting block 32 is fixedly connected to the middle of the abutment plate 3. A threaded rod 33 is rotatably connected to the right end of the connecting block 32. The threaded rod 33 is threadedly connected to the threaded sleeve 18.

[0042] By rotating the threaded rod 33, the left and right positions of the abutment plate 3 can be adjusted. When the product depth is small and the width of the moving mold 12 is narrow, the abutment plate 3 can be adjusted to the left. After the gap between the moving mold 12 and the fixed mold 11 allows the material to pass through, the right end of the ejector rod 21 contacts the abutment plate 3, and then the ejector rod 21 is ejected to the left, which can quickly discharge the material, reduce the moving distance of the moving mold 12, and thus effectively improve production efficiency. When the product depth is large and the width of the moving mold 12 is large, the abutment plate 3 can be adjusted to the right, and the corresponding ejector assembly 2 can be replaced (the ejector assembly 2 has the same structure, and the size is customized according to the size of the injection mold).

[0043] The working principle of this utility model is as follows: The plug block 23 is inserted into the second plug slot 242. The locking spring 235 pushes the locking block 233 outward, so that it is stuck at the right end of the second plug slot 242, and the plug block 23 is tightly fixed inside the second plug slot 242. This effectively improves the stability of the connection between the push rod 21 and the locking sleeve 24, thereby improving the stability of the buffer spring 27 during use, improving the safety of equipment use, and improving the production efficiency of equipment. At the same time, by adjusting the left and right positions of the abutment plate 3, the moving distance of the moving mold 12 is reduced while ensuring that the product can be discharged smoothly, further improving the production efficiency.

[0044] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A multi-specification injection mold ejection mechanism, comprising an equipment support (1), characterized in that: The equipment support (1) is provided with a fixed mold (11) and a moving mold (12) inside. The left and right sides of the equipment support (1) are respectively equipped with an injection cylinder (16) and a hydraulic cylinder (15). The moving mold (12) has multiple sets of positioning grooves (121), limiting grooves (122) and mounting grooves (123) inside. The positioning grooves (121), limiting grooves (122) and mounting grooves (123) are provided with an ejection assembly (2). The ejection assembly (2) includes an ejector rod (21), a positioning block (22), a plug-in block (23), a connecting groove (231), an adjusting groove (232), a locking block (233), an adjusting block (234), a locking spring (235), a locking sleeve (24), a first plug-in groove (241), a second plug-in groove (242), a fixed bushing (25), and a buffer spring (27).

2. The ejection mechanism for a multi-specification injection mold according to claim 1, characterized in that: The fixed mold (11) is fixedly connected to the left inner wall of the equipment support (1), the moving mold (12) is located on the right side of the fixed mold (11), the piston rod in the hydraulic cylinder (15) is fixedly connected to the right side surface of the moving mold (12), and the discharge pipe of the injection cylinder (16) is fixedly connected to the fixed mold (11).

3. The ejection mechanism for a multi-specification injection mold according to claim 2, characterized in that: Positioning sleeves (13) are fixedly connected to both the front and rear surfaces of the moving mold (12), and linear guide rails (14) are fixedly connected to both the front and rear sides of the inner walls of the left and right sides of the equipment bracket (1). The positioning sleeves (13) and linear guide rails (14) are slidably connected.

4. The ejection mechanism for a multi-specification injection mold according to claim 1, characterized in that: The positioning groove (121) is formed on the right side surface of the moving mold (12), the limiting groove (122) is formed on the left side surface of the moving mold (12), the positioning groove (121) and the limiting groove (122) are connected, and the mounting groove (123) is formed at the right end of the positioning groove (121).

5. The ejection mechanism for a multi-specification injection mold according to claim 4, characterized in that: The fixed bushing (25) is fixedly installed inside the mounting groove (123). The top rod (21) is slidably connected to the fixed bushing (25) and the limiting groove (122). The positioning block (22) is fixed on the surface of the top rod (21). The positioning block (22) is slidably connected to the positioning groove (121). The plug-in block (23) is fixedly connected to the right end of the top rod (21). The locking sleeve (24) is fixed on the outside of the plug-in block (23). The buffer spring (27) is sleeved on the surface of the top rod (21). Limiting rings (26) are fixedly connected to the surfaces of the fixed bushing (25) and the positioning groove (121). The two ends of the buffer spring (27) are respectively locked inside the left and right sets of limiting rings (26).

6. The ejection mechanism for a multi-specification injection mold according to claim 1, characterized in that: The first insertion groove (241) is opened on the right side surface of the locking sleeve (24), and the second insertion groove (242) is opened on the left side surface of the locking sleeve (24). The first insertion groove (241) and the second insertion groove (242) are connected to each other. Multiple sets of rubber gaskets (243) are fixedly connected to the right side surface of the locking sleeve (24).

7. The ejection mechanism for a multi-specification injection mold according to claim 1, characterized in that: The upper and lower surfaces of the plug-in block (23) are provided with connecting grooves (231). The right surface of the plug-in block (23) is provided with two sets of adjusting grooves (232). The connecting grooves (231) and adjusting grooves (232) are connected. The locking block (233) is slidably connected to the connecting grooves (231). The outer end of the locking block (233) is an arc surface. The adjusting block (234) is slidably connected to the adjusting grooves (232). The inner end of the adjusting block (234) is fixedly connected to the inner end of the locking block (233). The locking spring (235) is set inside the connecting groove (231). The two ends of the locking spring (235) abut against the locking block (233) and the connecting groove (231) respectively.

8. The ejection mechanism for a multi-specification injection mold according to claim 1, characterized in that: A straight sleeve (17) is fixedly connected to the middle of the front and rear sides of the right wall of the equipment bracket (1). A threaded sleeve (18) is fixedly connected to the upper and lower sides of the straight sleeve (17) on the right wall of the equipment bracket (1). Two sets of abutment plates (3) are provided on the right side inside the equipment bracket (1). A support rod (31) is fixedly connected to the upper and lower sides of the abutment plate (3). The support rod (31) is slidably connected to the straight sleeve (17). A connecting block (32) is fixedly connected to the middle of the abutment plate (3). A threaded rod (33) is rotatably connected to the right end of the connecting block (32). The threaded rod (33) is threadedly connected to the threaded sleeve (18).

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