A mold ejection composite structure

Abstract

This utility model relates to the field of injection mold technology, specifically to a mold ejection composite structure, including an equipment support. A fixed mold is fixedly connected to the left inner wall of the equipment support, and a moving mold is arranged on the right side of the fixed mold. Multiple sets of support columns are fixedly connected to the right inner wall of the equipment support. Multiple sets of ejection components are arranged inside the moving mold. The ejection components include a positioning bushing, an ejector rod, a positioning ring, a support block, a buffer spring, a dispersion plate, a slide, a top plate, a transmission rod, a locking hole, a support spring, a locking sleeve, a threaded hole, and a locking screw. During the ejection process, the dispersion plate evenly distributes the pressure generated by the ejector rod to the surface of the top plate through multiple sets of transmission rods and support springs, increasing the force-bearing area of ​​the product surface. At the same time, the support spring buffers the pressure, reducing the impact force on the product surface, thereby effectively reducing the generation of ejection points during the ejection process, reducing the impact of ejection points on the product surface, and improving product quality.

Description

Technical Field

[0001] This utility model relates to the field of injection mold technology, and specifically to a mold ejection composite structure. Background Technology

[0002] Injection molds are tools used to produce plastic products; they also give plastic products a complete structure and precise dimensions. After the product is formed in the injection mold, during the unloading process, ejector pins are used to push the product outwards for demolding. CN222521946U discloses an ejection mechanism for injection molds, relating to the field of injection mold technology. This utility model includes a base plate, a stabilizing box fixedly installed at the top of the base plate, and evenly distributed limiting rods fixedly installed at the top of the base plate. A movable plate is movably fitted onto the outer sides of multiple limiting rods. An mounting block is fixedly installed on one side of the movable plate, and a threaded rod is threaded through the middle of the mounting block. The threaded rod is rotatably installed at the top of the base plate. An upper mold is fixedly installed at the bottom of the movable plate, and a lower mold is fixedly clamped at the top of the stabilizing box. A first electric push rod is fixedly installed on the lower inner surface of the stabilizing box, and a support plate is fixedly installed at the output end of the first electric push rod. This application enables the collection of injection molds, avoiding the need for manual handling after injection molding, reducing physical labor and risks for workers.

[0003] In this device, as the lifting rod is pushed upward, the upper end of the lifting rod will directly contact the surface of the product. Due to the relatively concentrated force point, it is very easy to form a relatively obvious ejection point on the surface of the product after it is pushed out, which affects the aesthetics of the product surface and leads to lower product quality.

[0004] Therefore, it is necessary to invent a mold ejection composite structure to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a mold ejection composite structure to solve the problem that after the product is ejected, obvious ejection points are easily formed on its surface, affecting the aesthetics of the product surface and leading to lower product quality.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a mold ejection composite structure, including an equipment support, a fixed mold fixedly connected to the left inner wall of the equipment support, a moving mold arranged on the right side of the fixed mold, multiple sets of support columns fixedly connected to the right inner wall of the equipment support, and multiple sets of ejection assemblies arranged inside the moving mold, the ejection assembly including a positioning bushing, an ejector rod, a positioning ring, a support block, a buffer spring, a dispersion plate, a slide groove, a top plate, a transmission rod, a locking hole, a support spring, a locking sleeve, a threaded hole, and a locking screw.

[0007] By adopting the above technical solution, during the process of the moving mold sliding to the right, the ejector assembly, together with the support column, pushes the top plate to the left to unload the product.

[0008] Optionally, a hydraulic cylinder is fixedly installed on the right side of the equipment support, and the piston rod in the hydraulic cylinder is fixedly connected to the moving mold. An injection cylinder is fixedly connected to the left side of the equipment support, and the outlet 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 the material into the injection groove between the fixed mold and the moving mold.

[0010] Optionally, two sets of positioning blocks are fixedly connected to both the front and rear sides of the hydraulic cylinder, and two sets of linear guide rails are fixedly connected to both the front and rear sides of the inner walls on the left and right sides of the equipment bracket, with the positioning blocks slidably connected to the linear guide rails.

[0011] By adopting the above technical solution, the positioning block slides 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 right side surface of the moving mold has multiple sets of mounting grooves, the left end of the mounting groove has a positioning groove, the left end of the positioning groove has a limiting groove, the left side surface of the moving mold has a snap-fit ​​groove, the right wall of the snap-fit ​​groove has a connecting groove, and the left end of the limiting groove communicates with the snap-fit ​​groove.

[0013] By adopting the above technical solution, the top material assembly is installed inside the mounting groove, positioning groove, limiting groove, connecting groove and snap-fit ​​groove respectively.

[0014] Optionally, the positioning bushing is fixedly installed inside the mounting groove, the top rod is slidably connected to the positioning bushing and the limiting groove, the positioning ring is fixedly connected to the surface of the positioning bushing, and the positioning ring is slidably connected to the positioning groove.

[0015] By adopting the above technical solution, the positioning bushing is fixed in the mounting groove by screws, the push rod slides left and right inside the positioning bushing and the limiting groove, and the positioning ring slides inside the positioning groove, thereby limiting the sliding range of the push rod.

[0016] Optionally, the support block is fixedly connected to the right end of the top rod, the buffer spring is sleeved on the surface of the top rod, and the two ends of the buffer spring abut against the positioning bushing and the support block, respectively.

[0017] By adopting the above technical solution, during the process of the ejector sliding to the left, the support block moves to the left, thereby compressing the buffer spring. When the moving mold moves to the left to reset, the buffer spring expands outward to automatically reset the ejector assembly.

[0018] Optionally, the dispersion plate is fixedly connected to the left end of the top rod, and multiple sets of inclined bracing blocks are fixedly connected at the connection between the top rod and the dispersion plate. The dispersion plate is slidably connected to the connecting groove, and multiple sets of sliding grooves are opened on the surface of the dispersion plate. The top plate is slidably connected to the snap-fit ​​groove, and multiple sets of transmission rods are fixedly connected to the right side surface of the top plate. The transmission rods are slidably connected to the sliding grooves.

[0019] By adopting the above technical solution, the push rod slides to the left, driving the dispersion plate to slide to the left, and the transmission rod slides inside the groove.

[0020] Optionally, the surface of the transmission rod has multiple sets of locking holes, the locking sleeve is fitted on the right end of the transmission rod, the threaded hole is opened on the surface of the locking sleeve, the locking screw is threadedly connected to the threaded hole, one inner end of the locking screw is stuck inside the locking hole, a rubber gasket is fixedly connected to the left end of the locking sleeve, the support spring is fitted on the surface of the transmission rod, and the two ends of the support spring are respectively connected to the dispersion plate and the top plate.

[0021] By adopting the above technical solution, during the process of the dispersion plate sliding to the left, the top plate is pushed to the left by the cooperation of the transmission rod, locking sleeve and support spring, so as to unload the product.

[0022] The technical effects and advantages provided by this utility model in the above technical solution are as follows:

[0023] 1. This utility model, during the feeding process, uses a dispersion plate to evenly distribute the pressure generated by the top rod to the surface of the top plate through multiple sets of transmission rods and support springs, thereby increasing the force-bearing area of ​​the product surface. At the same time, the support springs buffer the pressure, reducing the impact force on the product surface, thus effectively reducing the generation of ejection points during the feeding process, reducing the impact of ejection points on the product surface, and improving product quality.

[0024] 2. This utility model adjusts the rigidity of the support spring by fixing the locking sleeve at different positions on the surface of the transmission rod. For different types of products, the support spring can be adjusted to different rigidities, which facilitates the rapid unloading of products while avoiding damage to the product surface. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0026] Figure 2 This is a schematic diagram of the equipment support structure of this utility model;

[0027] Figure 3 This is a schematic diagram of the external structure of the moving mold of this utility model;

[0028] Figure 4 This is a schematic diagram of the internal structure of the moving mold of this utility model;

[0029] Figure 5 This is a schematic diagram of the top material assembly structure of this utility model;

[0030] Figure 6 This is a schematic diagram of the dispersion plate structure of this utility model;

[0031] Figure 7 This is a schematic diagram of the transmission rod structure of this utility model.

[0032] Explanation of reference numerals in the attached figures:

[0033] 1. Equipment support; 11. Fixed mold; 12. Moving mold; 121. Mounting groove; 122. Positioning groove; 123. Limiting groove; 124. Connecting groove; 125. Snap-fit ​​groove; 13. Positioning block; 14. Linear guide rail; 15. Hydraulic cylinder; 16. Injection cylinder; 17. Support column; 2. Ejector assembly; 21. Positioning bushing; 22. Ejector rod; 23. Positioning ring; 24. Support block; 25. Buffer spring; 26. Diagonal brace block; 27. Dispersion plate; 28. Slide groove; 29. ​​Top plate; 210. Transmission rod; 211. Locking hole; 212. Support spring; 213. Locking sleeve; 214. Threaded hole; 215. Locking screw; 216. Rubber gasket. Detailed Implementation

[0034] 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.

[0035] This utility model provides, for example Figure 1 and Figure 2 The mold ejection composite structure shown includes a device support 1. A fixed mold 11 is fixedly connected to the left inner wall of the device support 1. A moving mold 12 is provided on the right side of the fixed mold 11. Multiple sets of support columns 17 are fixedly connected to the right inner wall of the device support 1. A hydraulic cylinder 15 is fixedly installed on the right side of the device support 1. The piston rod of the hydraulic cylinder 15 is fixedly connected to the moving mold 12. An injection cylinder 16 is fixedly connected to the left side of the device support 1. The outlet of the injection cylinder 16 is fixedly connected to the fixed mold 11. Two sets of positioning blocks 13 are fixedly connected to both the front and rear sides of the hydraulic cylinder 15. Two sets of 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 device support 1. The positioning blocks 13 are slidably connected to the linear guide rails 14.

[0036] In the process of product injection molding, the moving mold 12 is first pushed to the leftmost end by the hydraulic cylinder 15. During the sliding of the moving mold 12, the positioning block 13 slides on the surface of the linear guide rail 14, which improves the stability of the moving mold 12 and makes the moving mold 12 fit tightly with the fixed mold 11. Then, the injection cylinder 16 injects material into the injection groove between the fixed mold 11 and the moving mold 12. After the product is shaped, the hydraulic cylinder 15 drives the moving mold 12 to move to the right, so that the moving mold 12 and the fixed mold 11 are separated. Then the product is unloaded.

[0037] See Figures 3 to 7 The right side surface of the moving mold 12 has multiple sets of mounting grooves 121. The left end of the mounting groove 121 has a positioning groove 122. The left end of the positioning groove 122 has a limiting groove 123. The left side surface of the moving mold 12 has a snap-fit ​​groove 125. The right wall of the snap-fit ​​groove 125 has a connecting groove 124. The left end of the limiting groove 123 communicates with the snap-fit ​​groove 125. The interior of the moving mold 12 has multiple sets of ejector components 2. The ejector components 2 include a positioning bushing 21, an ejector rod 22, a positioning ring 23, a support block 24, a buffer spring 25, a dispersion plate 27, a slide 28, a top plate 29, a transmission rod 210, a locking hole 211, a support spring 212, a locking sleeve 213, a threaded hole 214, and a locking screw 215.

[0038] In addition, as the moving mold 12 moves to the right, the ejector assembly 2 slides to the left inside the positioning groove 122, the limiting groove 123, the connecting groove 124 and the snap-fit ​​groove 125, pushing the top plate 29 to the left, ejecting the product, and unloading the product.

[0039] See Figure 4 and Figure 5 The positioning bushing 21 is fixedly installed inside the mounting groove 121. The push rod 22 is slidably connected to the positioning bushing 21 and the limiting groove 123. The positioning ring 23 is fixedly connected to the surface of the positioning bushing 21 and slidably connected to the positioning groove 122. The support block 24 is fixedly connected to the right end of the push rod 22. The buffer spring 25 is sleeved on the surface of the push rod 22, and the two ends of the buffer spring 25 abut against the positioning bushing 21 and the support block 24 respectively.

[0040] Specifically, as the moving mold 12 slides to the right, it will drive the ejector assembly 2 to move to the right. When the support block 24 abuts against the surface of the support column 17, as the moving mold 12 continues to move to the right, the support block 24 will push the ejector rod 22 to slide to the left inside the positioning sleeve 21 and the limiting groove 123. At the same time, the positioning ring 23 slides inside the positioning groove 122 to limit the position of the ejector rod 22. Meanwhile, the support block 24 and the positioning sleeve 21 cooperate to compress the buffer spring 25.

[0041] See Figure 4 , Figure 6 and Figure 7 The dispersion plate 27 is fixedly connected to the left end of the top rod 22. Multiple sets of inclined bracing blocks 26 are fixedly connected at the connection between the top rod 22 and the dispersion plate 27. The dispersion plate 27 is slidably connected to the connecting groove 124. Multiple sets of sliding grooves 28 are opened on the surface of the dispersion plate 27. The top plate 29 is slidably connected to the snap-fit ​​groove 125. Multiple sets of transmission rods 210 are fixedly connected to the right side surface of the top plate 29. The transmission rods 210 are slidably connected to the sliding grooves 28. Multiple sets of locking holes 211 are opened on the surface of the transmission rods 210. The locking sleeve 213 is sleeved on the right end of the transmission rod 210. The threaded hole 214 is opened on the surface of the locking sleeve 213. The locking screw 215 is threadedly connected to the threaded hole 214. One end of the locking screw 215 is stuck inside the locking hole 211. A rubber gasket 216 is fixedly connected to the left end of the locking sleeve 213. The support spring 212 is sleeved on the surface of the transmission rod 210. The two ends of the support spring 212 are respectively connected to the dispersion plate 27 and the top plate 29.

[0042] At the same time, when the top rod 22 slides to the left, it will push the dispersion plate 27 to the left, causing the dispersion plate 27 to slide to the left inside the connecting groove 124. The dispersion plate 27, through the transmission rod 210 and the support spring 212, pushes the top plate 29 to the left. When the left side surface of the top plate 29 contacts the product surface, it increases the force-bearing area of ​​the product surface. At the same time, the product will generate a certain resistance to the top plate 29. As the dispersion plate 27 continues to push to the left, the support spring 212 buffers the generated pressure, avoiding excessive pressure on the product and effectively reducing the generation of ejection points on the product surface.

[0043] Conversely, as the moving mold 12 moves to the left, the ejector assembly 2 is reset sequentially under the action of the buffer spring 25, so that the top plate 29 is locked inside the locking groove 125, and the rubber pad 216 buffers the locking sleeve 213 and the dispersing plate 27 to avoid friction between the locking sleeve 213 and the dispersing plate 27 during the reset process.

[0044] Additionally, by fixing the locking sleeve 213 at different positions on the surface of the transmission rod 210, the initial stiffness of the support spring 212 can be adjusted. During the adjustment process, first move the moving mold 12 to the far right, at which point the top plate 29 and the dispersion plate 27 are in the ejected state. Then unscrew the locking screw 215 and push the top plate 29 to the right, causing the transmission rod 210 to slide to the right inside the slide groove 28. When it slides to a suitable distance, slide the locking sleeve 213 to the left, so that it is in close contact with the surface of the dispersion plate 27. Then screw the locking screw 215 back into the lock hole 211 to position the transmission rod 210. Adjust multiple sets of transmission rods 210 in sequence.

[0045] The working principle of this utility model is as follows: During the feeding process, the dispersion plate 27 evenly distributes the pressure generated by the top rod 22 to the surface of the top plate 29 through multiple sets of transmission rods 210 and support springs 212. The top plate 29 increases the force-bearing area of ​​the product surface, while the support springs 212 buffer the pressure, reducing the impact force on the product surface. This effectively reduces the generation of ejection points during the feeding process, reduces the impact of ejection points on the product surface, and improves product quality. By fixing the locking sleeve 213 at different positions on the surface of the transmission rod 210, the rigidity of the support springs 212 can be adjusted. For different types of products, the support springs 212 can be adjusted to different rigidities, which facilitates rapid feeding of products while avoiding damage to the product surface.

[0046] 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 mold ejection composite structure, comprising a device support (1), characterized in that: A fixed mold (11) is fixedly connected to the inner wall of the left side of the equipment bracket (1). A moving mold (12) is provided on the right side of the fixed mold (11). Multiple sets of support columns (17) are fixedly connected to the inner wall of the right side of the equipment bracket (1). Multiple sets of ejector components (2) are provided inside the moving mold (12). The ejector components (2) include a positioning bushing (21), an ejector rod (22), a positioning ring (23), a support block (24), a buffer spring (25), a dispersion plate (27), a slide groove (28), a top plate (29), a transmission rod (210), a lock hole (211), a support spring (212), a locking sleeve (213), a threaded hole (214), and a locking screw (215).

2. The mold ejection composite structure according to claim 1, characterized in that: A hydraulic cylinder (15) is fixedly installed on the right side of the equipment bracket (1). The piston rod in the hydraulic cylinder (15) is fixedly connected to the moving mold (12). An injection cylinder (16) is fixedly connected to the left side of the equipment bracket (1). The outlet of the injection cylinder (16) is fixedly connected to the fixed mold (11).

3. The mold ejection composite structure according to claim 2, characterized in that: Two sets of positioning blocks (13) are fixedly connected to the front and rear sides of the hydraulic cylinder (15), and two sets of linear guide rails (14) are fixedly connected to the front and rear sides of the inner walls of the left and right sides of the equipment bracket (1). The positioning blocks (13) are slidably connected to the linear guide rails (14).

4. The mold ejection composite structure according to claim 1, characterized in that: The right side surface of the moving mold (12) has multiple sets of mounting grooves (121). The left end of the mounting groove (121) has a positioning groove (122). The left end of the positioning groove (122) has a limiting groove (123). The left side surface of the moving mold (12) has a snap-fit ​​groove (125). The right wall of the snap-fit ​​groove (125) has a connecting groove (124). The left end of the limiting groove (123) is connected to the snap-fit ​​groove (125).

5. The mold ejection composite structure according to claim 4, characterized in that: The positioning bushing (21) is fixedly installed inside the mounting groove (121). The top rod (22) is slidably connected to the positioning bushing (21) and the limiting groove (123). The positioning ring (23) is fixedly connected to the surface of the positioning bushing (21). The positioning ring (23) is slidably connected to the positioning groove (122).

6. The mold ejection composite structure according to claim 5, characterized in that: The support block (24) is fixedly connected to the right end of the top rod (22), and the buffer spring (25) is sleeved on the surface of the top rod (22). The two ends of the buffer spring (25) abut against the positioning bushing (21) and the support block (24) respectively.

7. The mold ejection composite structure according to claim 4, characterized in that: The dispersion plate (27) is fixedly connected to the left end of the top rod (22). Multiple sets of inclined bracing blocks (26) are fixedly connected at the connection between the top rod (22) and the dispersion plate (27). The dispersion plate (27) is slidably connected to the connecting groove (124). Multiple sets of sliding grooves (28) are opened on the surface of the dispersion plate (27). The top plate (29) is slidably connected to the snap-fit ​​groove (125). Multiple sets of transmission rods (210) are fixedly connected to the right side surface of the top plate (29). The transmission rods (210) are slidably connected to the sliding grooves (28).

8. The mold ejection composite structure according to claim 7, characterized in that: The transmission rod (210) has multiple sets of locking holes (211) on its surface. The locking sleeve (213) is fitted on the right end of the transmission rod (210). The threaded hole (214) is opened on the surface of the locking sleeve (213). The locking screw (215) is threadedly connected to the threaded hole (214). One end of the inner side of the locking screw (215) is stuck inside the locking hole (211). A rubber gasket (216) is fixedly connected to the left end of the locking sleeve (213). The support spring (212) is fitted on the surface of the transmission rod (210). The two ends of the support spring (212) are respectively connected to the dispersion plate (27) and the top plate (29).

Images