A rubber product rapid demolding ejection mechanism

Abstract

The utility model provides a rubber product quick demoulding ejection mechanism, including demoulding mechanism, the one side of demoulding mechanism is provided with locking mechanism, the demoulding mechanism includes top combination board, four installing rods are fixed to top combination board top, the installing rod surface is fixed with mounting panel and top plate, the mounting panel top is fixed with support station, the support station top is detachably connected with lower mould, the top plate top is fixed with first electric jar, first electric jar one end penetrates top plate and is fixed with upper mould, the top plate bottom is fixed with pressure sensor, the mounting panel bottom is fixed with second electric jar, second electric jar one end penetrates mounting panel and is fixed with even pressure ejection plate, even pressure ejection plate top is fixed with a plurality of top rod, top rod sliding penetrates lower mould. This rubber product quick demoulding ejection mechanism has solved the problem of uneven stress caused by traditional single point ejection, and significantly improved product demoulding quality.

Description

Technical Field

[0001] This utility model belongs to the field of rubber product molding technology, specifically relating to a rapid demolding and ejection mechanism for rubber products. Background Technology

[0002] Rubber products refer to the activities of producing various rubber products using natural and synthetic rubber as raw materials, and also include rubber products produced by recycling waste rubber. The output of synthetic rubber has far exceeded that of natural rubber, with styrene-butadiene rubber having the largest output.

[0003] The utility model patent with authorization announcement number CN217047359U discloses a quick demolding and ejection mechanism for a mold used in the molding process of rubber products. It includes a base plate, and an ejection mechanism is provided on the upper surface of the base plate. The ejection mechanism includes a fixed block, a rotating rod, a gear, an eccentric block, a slide rail, a rack, a top plate, an ejector rod, a fixed rod, a connecting rod, a moving rod, and a positioning bolt. The fixed block is fixedly connected to the upper surface of the base plate. The rotating rod is rotatably connected inside the fixed block. The eccentric block and the gear are fixedly connected to the circumferential surface of the rotating rod. The top plate is slidably connected inside the fixed block. The fixed rod is fixedly connected to the upper surface of the top plate. The circumferential surface of the eccentric block and the lower surface of the top plate are in contact.

[0004] While the above technical solution reduces the workload of workers in removing materials and facilitates the disassembly and replacement of the lower mold for molding different rubber sheets, the operation of the above technical solution uses multi-stage mechanical transmission such as gears, racks, eccentric blocks, and connecting rods, which is prone to wear and has low transmission efficiency. After long-term use, it is easy to cause a decrease in ejection accuracy. Furthermore, when the top plate is pushed by the eccentric block, the force is concentrated at a single point, which can easily lead to uneven force on the ejector rod, damaging the product or mold. When replacing the lower mold, the nuts and positioning bolts need to be manually tightened, which is time-consuming and affects production efficiency. Utility Model Content

[0005] In view of the shortcomings of the prior art, the purpose of this utility model is to provide a rapid demolding and ejection mechanism for rubber products, so as to solve the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0007] A rapid demolding and ejection mechanism for rubber products includes a demolding mechanism comprising a top assembly plate. Four mounting rods are fixed to the top of the top assembly plate. Mounting plates and top plates are fixed to the surfaces of the mounting rods. A support platform is fixed to the top of the mounting plate. A lower mold is detachably connected to the top of the support platform. A first electric cylinder is fixed to the top of the top plate, with one end penetrating the top plate and fixed to an upper mold. A pressure sensor is fixed to the bottom of the top plate. A second electric cylinder is fixed to the bottom of the mounting plate, with one end penetrating the mounting plate and fixed to a pressure-equalizing ejection plate.

[0008] As a preferred embodiment, the top of the equalizing ejector plate is fixed with a plurality of ejector rods, the ejector rods slide through the lower mold, and the top shape of the ejector rods is adapted to the bottom shape of the inner wall of the lower mold.

[0009] As a preferred embodiment, a locking mechanism is provided on one side of the demolding mechanism. The locking mechanism includes four connecting blocks, which are fixed to both sides of the lower mold surface. Four snap-fit ​​shells are fixed on the top of the support platform, and the connecting blocks are slidably connected to the inner walls of the snap-fit ​​shells.

[0010] As a preferred embodiment, the top of the mounting plate is fixed with two opposing support plates, and a third electric cylinder is fixed on the surface of the support plate. One end of the third electric cylinder passes through the support plate and is fixed with a heat-conducting plate.

[0011] As a preferred embodiment, the heat-conducting plate has two pins fixed on its surface, and the snap-fit ​​shell and the connecting block both have pin holes through which the pins pass.

[0012] As a preferred embodiment, an electromagnet is fixed to the bottom of the inner wall of the snap-fit ​​shell, and the connecting block is made of a magnetically attractive material.

[0013] As a preferred embodiment, a cooling distribution pipe extends through the inner wall of the lower mold, the cooling distribution pipe is fixedly connected to the inner wall of the lower mold, and both ends of the cooling distribution pipe are connected to inlet and outlet joints.

[0014] As a preferred embodiment, the heat-conducting plate has heat-conducting fins fixed on its surface, the support plate has an installation groove on its surface, and a cooling fan is fixed to the inner wall of the installation groove.

[0015] In a preferred embodiment, a first guide rod is slidably passed through the bottom of the mounting plate, and the top of the first guide rod is fixedly connected to the bottom of the pressure equalization ejector plate. A second guide rod is slidably passed through the surface of the support plate, and one end of the second guide rod is fixedly connected to the surface of the heat-conducting plate.

[0016] As a preferred embodiment, one end of the pin is designed as a semi-circular structure, and the edge of one side of the pin hole is designed as a chamfered structure.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] (1) In this utility model, the demolding mechanism solves the problem of uneven force caused by traditional single-point ejection through the coordinated design of pressure equalization ejection plate and multiple ejector rods, which significantly improves the demolding quality of the product; the pressure sensor combined with the controller realizes the automatic ejection of the second electric cylinder, and the direct drive of the ejector rod by the second electric cylinder simplifies the transmission structure and reduces the failure rate; the cooling diversion pipe is integrated into the inner wall of the lower mold to achieve rapid and uniform cooling and shorten the production cycle.

[0019] (2) In this utility model, the locking mechanism is driven by the third electric cylinder to lock the pin rod and the electromagnet, which realizes the quick assembly and disassembly of the lower mold and the operation time is greatly shortened compared with the traditional bolt fixing. The integrated design of the heat conduction plate and the heat dissipation fan completes the mold heat dissipation at the same time as locking, reducing the additional cooling process. This mechanism has both efficient locking and active heat dissipation functions, adapts to the needs of high frequency and continuous production, and has strong comprehensive practicality. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0021] Figure 2 This is a cross-sectional structural diagram of the demolding mechanism in this utility model;

[0022] Figure 3 This is a partial structural diagram of the demolding mechanism in this utility model;

[0023] Figure 4 This is a schematic diagram of the locking mechanism in this utility model;

[0024] Figure 5 This is a schematic diagram of the locking mechanism after operation in this utility model.

[0025] The figure shows: 1. Demolding mechanism; 101. Top assembly plate; 102. Mounting rod; 103. Mounting plate; 104. Top plate; 105. Support platform; 106. Lower mold; 107. First electric cylinder; 108. Upper mold; 109. Pressure sensor; 110. Second electric cylinder; 111. Pressure equalizing ejector plate; 112. Ejector rod; 113. Controller; 114. First guide rod; 115. Cooling manifold; 116. Inlet / outlet connector; 2. Locking mechanism; 201. Connecting block; 202. Snap-fit ​​shell; 203. Support plate; 204. Third electric cylinder; 205. Heat-conducting plate; 206. Pin rod; 207. Pin hole; 208. Electromagnet; 209. Heat-conducting fins; 210. Second guide rod; 211. Mounting groove; 212. Cooling fan. Detailed Implementation

[0026] The specific embodiments of this utility model will now be described in further detail with reference to the accompanying drawings.

[0027] Please see Figures 1 to 3As shown, this utility model embodiment provides a quick demolding and ejection mechanism for rubber products, specifically including a demolding mechanism 1. The demolding mechanism 1 includes a top assembly plate 101. Four mounting rods 102 are fixed to the top of the top assembly plate 101. Mounting plates 103 and top plates 104 are fixed to the surfaces of the mounting rods 102. A support platform 105 is fixed to the top of the mounting plate 103. A lower mold 106 is detachably connected to the top of the support platform 105. A first electric cylinder 107 is fixed to the top of the top plate 104. One end of the first electric cylinder 107 passes through the top plate 104 and is fixed to the upper mold 108. A pressure sensor 109 is fixed to the bottom of the top plate 104. A second electric cylinder 110 is fixed to the bottom of the mounting plate 103. One end of the second electric cylinder 110 passes through the mounting plate 103 and is fixed to the pressure equalizing ejector plate 111. Multiple ejector rods 112 are fixed to the top of the pressure equalizing ejector plate 111. The ejector rods 112 slide through the lower mold 106. The top shape of the ejector rods 112 matches the bottom shape of the inner wall of the lower mold 106. A controller 113 is fixed to the surface of the top plate 104.

[0028] Specifically, in this embodiment, the first electric cylinder 107 drives the upper mold 108 to press down and close with the lower mold 106 to complete the injection molding. After the injection molding is completed, the first electric cylinder 107 drives the upper mold 108 to reset, triggering the pressure sensor 109. The pressure sensor 109 transmits a signal to the controller 113, and the controller 113 triggers the second electric cylinder 110 to push the pressure equalizing ejector plate 111 and the ejector rod 112 to rise. The top shape of the ejector rod 112 matches the bottom of the inner wall of the lower mold 106, uniformly ejecting the rubber product and avoiding deformation caused by local stress. The pressure equalizing ejection plate 111 disperses the ejection force through multiple ejector rods 112, achieving stable demolding. The controller 113 coordinates the action sequence of each component, improving the level of automation. This mechanism adopts a linkage design between the pressure equalizing ejection plate 111 and multiple ejector rods 112, avoiding the problem of uneven force caused by single-point ejection of the traditional eccentric block, resulting in a smoother ejection process. The pressure sensor 109 monitors the pressure in real time to achieve ejection linkage. The second electric cylinder 110 directly drives the ejector rods 112, simplifying the transmission chain, reducing mechanical wear, and extending service life.

[0029] Please see Figure 4 and Figure 5 As shown, a locking mechanism 2 is provided on one side of the demolding mechanism 1. The locking mechanism 2 includes four connecting blocks 201, which are fixed to both sides of the surface of the lower mold 106. Four snap-fit ​​shells 202 are fixed on the top of the support platform 105, and the connecting blocks 201 are slidably connected to the inner walls of the snap-fit ​​shells 202. Two opposing support plates 203 are fixed on the top of the mounting plate 103. A third electric cylinder 204 is fixed on the surface of the support plate 203, and one end of the third electric cylinder 204 passes through the support plate 203 and is fixed with a heat-conducting plate 205. Two pins 206 are fixed on the surface of the heat-conducting plate 205. Pin holes 207 for the snap-fit ​​shells 202 and connecting blocks 201 are provided on their surfaces to accommodate the pins 206.

[0030] Specifically, in this embodiment, after the lower mold 106 is placed on the support platform 105, the connecting block 201 will enter the snap-fit ​​shell 202. The third electric cylinder 204 pushes the heat-conducting plate 205 and the pin 206, so that the heat-conducting plate 205 fits against the two sides of the lower mold 106. At the same time, the pin 206 is inserted into the pin hole 207 of the connecting block 201 and the snap-fit ​​shell 202 to complete the mechanical locking. When disassembling, the third electric cylinder 204 retracts the pin 206, and the lower mold 106 can be quickly removed upward along the surface of the connecting block 201. Compared with traditional bolt fixing, this locking mechanism 2 achieves one-click locking and releasing by driving the pin 206 through the third electric cylinder 204, which greatly shortens the mold replacement time and reduces the difficulty of operation.

[0031] Please see Figure 4 and Figure 5 As shown, an electromagnet 208 is fixed to the bottom of the inner wall of the snap-fit ​​housing 202, and the connecting block 201 is made of a magnetically attractive material. When the electromagnet 208 on the inner wall of the snap-fit ​​housing 202 is energized, it attracts the magnetically attractive connecting block 201, enhancing the connection strength between the lower mold 106 and the support platform 105 and preventing loosening due to vibration. The electromagnet 208 is only energized when locked and automatically releases after power is cut off, facilitating quick disassembly and reducing energy consumption. Heat-conducting fins 209 are fixed to the surface of the heat-conducting plate 205, and a mounting groove 211 is opened on the surface of the support plate 203. A cooling fan 212 is fixed to the inner wall of the mounting groove 211. The heat-conducting plate 205 increases the heat dissipation area through the heat-conducting fins 209, and the cooling fan 212 forces airflow to sweep the heat-conducting fins 209, quickly dissipating the residual heat from the lower mold 106.

[0032] Please see Figure 2 and Figure 3 As shown, a cooling distribution pipe 115 penetrates the inner wall of the lower mold 106, and is fixedly connected to the inner wall of the lower mold 106. Both ends of the cooling distribution pipe 115 are connected to inlet / outlet connectors 116. The cooling distribution pipe 115 is embedded in the inner wall of the lower mold 106 and connected to an external cooling medium circulation system through the inlet / outlet connectors 116, directly cooling the mold cavity, accelerating the setting of rubber products, shortening cooling time, and improving production efficiency. A first guide rod 114 slides through the bottom of the mounting plate 103, and the top of the first guide rod 114 is fixedly connected to the bottom of the pressure equalizing ejector plate 111. A second guide rod 210 slides through the surface of the support plate 203, and one end of the second guide rod 210 is fixedly connected to the surface of the heat-conducting plate 205. The first guide rod 114 guides the vertical movement of the pressure equalizing ejector plate 111, and the second guide rod 210 ensures the translational stability of the heat-conducting plate 205 and prevents displacement.

[0033] In this embodiment, one end of the pin 206 has a semi-circular design, and the edge of the pin hole 207 is chamfered. The semi-circular design of the end of the pin 206 and the chamfered structure of the pin hole 207 can reduce insertion resistance, avoid wear caused by misalignment, and make it easier for the pin 206 to be inserted into the pin hole 207. The controller 113 is electrically connected to the first electric cylinder 107, the second electric cylinder 110, the pressure sensor 109, the third electric cylinder 204, the cooling fan 212, and the electromagnet 208.

[0034] The workflow of this utility model is divided into three stages: injection molding, demolding and ejection, and replacement of the lower mold 106. During injection molding, the first electric cylinder 107 drives the upper mold 108 to press down and close with the lower mold 106. The injection material is injected into the cavity through the upper mold 108. After molding, the first electric cylinder 107 drives the upper mold 108 to reset. The upper mold 108 triggers the pressure sensor 109, which transmits a signal to the controller 113 to start the second electric cylinder 110 to push the pressure equalization ejection plate 11. 1. The ejector rod 112 rises and ejects the product evenly. At the same time, the cooling manifold 115 introduces the cooling medium to accelerate the shaping. The heat-conducting plate 205 absorbs the heat on the surface of the lower mold 106. The cooling fan 212 starts to assist in heat dissipation. When changing the lower mold 106, the third electric cylinder 204 retracts the pin 206, the electromagnet 208 is de-energized, and the lower mold 106 slides upward along the snap-fit ​​shell 202. The new mold slides in and locks through the connecting block 201, completing the lower mold 106 replacement operation.

[0035] Although specific embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these specific embodiments without departing from the principles and spirit, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A rapid demolding and ejection mechanism for rubber products, characterized in that: The device includes a demolding mechanism (1), which includes a top assembly plate (101). Four mounting rods (102) are fixed to the top of the top assembly plate (101). Mounting plates (103) and top plates (104) are fixed to the surfaces of the mounting rods (102). A support platform (105) is fixed to the top of the mounting plate (103). A lower mold (106) is detachably connected to the top of the support platform (105). A first electric cylinder (107) is fixed to the top of the top plate (104). One end of the first electric cylinder (107) passes through the top plate (104) and is fixed to the upper mold (108). A pressure sensor (109) is fixed to the bottom of the top plate (104). A second electric cylinder (110) is fixed to the bottom of the mounting plate (103). One end of the second electric cylinder (110) passes through the mounting plate (103) and is fixed to the pressure equalizing ejector plate (111).

2. The rapid demolding and ejection mechanism for rubber products according to claim 1, characterized in that: The top of the equalizing ejector plate (111) is fixed with a plurality of ejector rods (112), which slide through the lower mold (106). The top shape of the ejector rod (112) is adapted to the bottom shape of the inner wall of the lower mold (106).

3. The rapid demolding and ejection mechanism for rubber products according to claim 1, characterized in that: The demolding mechanism (1) is provided with a locking mechanism (2) on one side. The locking mechanism (2) includes a connecting block (201). There are four connecting blocks (201). The connecting blocks (201) are fixed on both sides of the surface of the lower mold (106). Four snap-fit ​​shells (202) are fixed on the top of the support platform (105). The connecting blocks (201) are slidably connected to the inner wall of the snap-fit ​​shells (202).

4. The rapid demolding and ejection mechanism for rubber products according to claim 3, characterized in that: The mounting plate (103) has two opposing support plates (203) fixed on its top. A third electric cylinder (204) is fixed on the surface of the support plate (203). One end of the third electric cylinder (204) passes through the support plate (203) and is fixed with a heat-conducting plate (205).

5. The rapid demolding and ejection mechanism for rubber products according to claim 4, characterized in that: The heat-conducting plate (205) has two pins (206) fixed on its surface. The snap-fit ​​shell (202) and the connecting block (201) are both provided with pin holes (207) through which the matching pins (206) pass.

6. The rapid demolding and ejection mechanism for rubber products according to claim 3, characterized in that: An electromagnet (208) is fixed to the bottom of the inner wall of the snap-fit ​​shell (202), and the connecting block (201) is made of magnetic material.

7. The rapid demolding and ejection mechanism for rubber products according to claim 1, characterized in that: A cooling distribution pipe (115) runs through the inner wall of the lower mold (106). The cooling distribution pipe (115) is fixedly connected to the inner wall of the lower mold (106). Both ends of the cooling distribution pipe (115) are connected to inlet and outlet connectors (116).

8. The rapid demolding and ejection mechanism for rubber products according to claim 4, characterized in that: The heat-conducting plate (205) has heat-conducting fins (209) fixed on its surface, and the support plate (203) has an installation groove (211) on its surface. A heat dissipation fan (212) is fixed on the inner wall of the installation groove (211).

9. The rapid demolding and ejection mechanism for rubber products according to claim 4, characterized in that: The mounting plate (103) has a first guide rod (114) that slides through its bottom. The top of the first guide rod (114) is fixedly connected to the bottom of the pressure equalization ejector plate (111). The support plate (203) has a second guide rod (210) that slides through its surface. One end of the second guide rod (210) is fixedly connected to the surface of the heat-conducting plate (205).

10. The rapid demolding and ejection mechanism for rubber products according to claim 5, characterized in that: The pin (206) has a semi-circular structure at one end, and the pin hole (207) has a chamfered edge on one side.

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