Rubber plug injection molding processing equipment

Abstract

The utility model discloses rubber plug injection molding processing equipment, and relates to the technical field of rubber plug injection molding processing, the rubber plug injection molding processing equipment comprises a device frame and a material pushing assembly, the top end in the device frame is vertically provided with a hydraulic push rod, the bottom of the hydraulic push rod is connected with an upper module, and a lower module is arranged under the upper module; the material pushing assembly is vertically installed at the bottom of the lower die set. According to the rubber plug injection molding machining equipment, two sets of pushing assemblies are symmetrically installed on the left side and the right side of the bottom of the lower die set correspondingly, and meanwhile hydraulic columns connected to the left side and the right side of the lower die set are matched, so that the lower die set can be provided with structure supporting and structure buffering functions; and the upper heat dissipation piece and the lower heat dissipation piece which are arranged on the side edges of the upper mold and the lower mold are matched with the heat conduction piece at the bottom of the lower mold, so that heat dissipation of an internal injection molding piece can be effectively assisted, and the cooling efficiency is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of rubber stopper injection molding technology, specifically to a rubber stopper injection molding equipment. Background Technology

[0002] Injection molding of rubber stoppers refers to heating the rubber stopper mold to a certain temperature, then injecting molten plastic into a closed mold cavity through an injection molding machine at extremely high pressure. After the mold cools and solidifies, the plastic product is ejected from the top plate after the mold is opened, thus obtaining the desired rubber stopper product.

[0003] Rubber stopper injection molding equipment refers to injection molding machines used to produce rubber stoppers. Specifically, it is an industrial piece of equipment mainly used to inject molten plastic material into a mold, and then produce various shapes of plastic products, including rubber stoppers, by cooling and molding. The injection molding machine heats the plastic material to a molten state through its heating system, then injects it into the mold through its injection system, and finally cools the product through its cooling system to maintain the required hardness and strength.

[0004] Conventional rubber stopper injection molding equipment has a relatively complex demolding structure during injection molding. This structure is easily damaged by external factors and forces during production, leading to increased overall maintenance costs for the equipment.

[0005] Therefore, in view of this, we have studied and improved the existing structure and its shortcomings, and proposed a rubber stopper injection molding equipment. Utility Model Content

[0006] The purpose of this invention is to provide a rubber stopper injection molding equipment to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a rubber stopper injection molding equipment, comprising a device frame and a material ejector assembly. A hydraulic push rod is vertically installed at the top of the device frame, and an upper mold assembly is connected to the bottom of the hydraulic push rod. A lower mold assembly is located directly below the upper mold assembly. The material ejector assembly is vertically installed at the bottom of the lower mold assembly, and hydraulic columns are vertically connected to both the left and right sides of the lower mold assembly. Guide columns are vertically inserted through the four diagonal points of the upper and lower mold assemblies. The material ejector assembly includes a hydraulic spring rod, a fixing component, and a discharge rod. A fixing component is provided at the upper end of the hydraulic spring rod, and a discharge rod is vertically connected to the top end of the hydraulic spring rod.

[0008] Furthermore, the upper module includes an upper mold, an injection port, an upper guide sleeve, an upper heat sink, a positioning post, a sealing groove, and an upper heating pipe. The injection port is installed in the middle of the top of the upper mold, and upper guide sleeves are provided at the four opposite corners of the upper mold. The upper heat sink is installed on both the front and rear sides of the upper mold, and the positioning post is vertically connected to the bottom surface of the upper heat sink. A sealing groove is opened on the bottom edge surface of the upper mold, and an upper heating pipe is installed inside the upper mold.

[0009] Furthermore, the positioning stakes are arranged at equal intervals on the bottom surface of the upper heat sink, and the upper heat sink is in close contact with the outer surface of the upper mold, and the upper heating pipes are respectively arranged inside the four sides of the upper mold.

[0010] Furthermore, the upper guide sleeve and the guide post are slidably connected, and the bottom output end of the hydraulic push rod is connected to the top surface of the upper mold and is provided with four sets.

[0011] Furthermore, the lower module includes a lower mold, a fixed base, a lower guide sleeve, a lower heat sink, a positioning hole, a sealing element, a lower heating pipe, and a heat conducting element. Two sets of fixed bases are installed on each of the left and right sides of the lower mold, and lower guide sleeves are vertically arranged at the four diagonal corners of the lower mold. Lower heat sinks are installed on both the front and rear sides of the lower mold, and positioning holes are vertically opened on the top surface of the lower heat sink. A sealing element is installed on the top edge of the lower mold, and a lower heating pipe is installed inside the lower mold. A heat conducting element is installed at the bottom of the lower mold.

[0012] Furthermore, the lower guide sleeve and the guide post are slidably connected, and the discharge rod penetrates vertically through the inner bottom side of the lower mold, with the top surface of the discharge rod flush with the inner bottom side surface of the lower mold.

[0013] Furthermore, the heat-conducting component and the lower heat-dissipating component are closely attached to the outer surface of the lower mold, and the lower heating pipes are respectively disposed inside the four sides of the lower mold. The positioning holes are equidistantly arranged on the top surface of the lower heat-dissipating component, and the inner surface structure of the positioning holes matches the outer surface structure of the positioning pile.

[0014] Furthermore, the discharge rod slides vertically through the middle of the fixing member, and the fixing member is fixed to the bottom surface of the lower mold and has two sets of fixing members on the left and right sides of the heat-conducting member.

[0015] This utility model provides a rubber stopper injection molding equipment, which has the following beneficial effects:

[0016] 1. This utility model features two sets of pusher components symmetrically and vertically installed on the left and right sides of the bottom of the lower mold assembly. Simultaneously, two sets of hydraulic columns are installed on each of the left and right sides of the lower mold assembly using fixed bases. Utilizing the structural characteristics of the hydraulic columns and pusher components, effective structural support is provided for the entire lower mold assembly, ensuring the stability of the device structure. Simultaneously, it provides a good structural buffer when the upper and lower mold assemblies are vertically joined, reducing the impact of interaction forces on the upper and lower mold assemblies themselves. Furthermore, since the top surface of the ejector rod is flush with the inner bottom surface of the lower mold, after the injection molded part inside the lower mold is formed, the hydraulic columns... During the extension and retraction, the entire lower mold assembly descends vertically, exerting a downward pressure on the entire ejector assembly. The hydraulic spring rod contracts, causing the ejector rod at the top to push vertically upwards into the lower mold, thus ejecting the injection molded part. This provides a good demolding mechanism. The use of this structure ensures the stability of the device while maintaining the flexibility and effectiveness of the structure, without affecting the processing of the injection molded part. Due to the inherent structural characteristics of the ejector assembly, it possesses both structural flexibility and good structural support and strength, thereby minimizing equipment maintenance costs.

[0017] 2. This utility model, by symmetrically installing upper heat sinks on the front and rear surfaces of the upper mold and lower heat sinks symmetrically installing lower heat sinks on the front and rear surfaces of the lower mold, and fixing a heat-conducting component in the middle of the bottom surface of the lower mold, utilizes the above structure to provide good heat conduction and cooling during the injection molding process of the injection molded part inside the upper and lower mold assemblies, thereby improving the molding efficiency of the injection molded part as much as possible. In addition, by vertically arranging positioning pins on the bottom surface of the upper heat sink and equidistantly arranging positioning holes on the top surface of the lower heat sink, the upper and lower molds can be vertically aligned for precise alignment. With sufficient accuracy and stability after connection, the structure of the guide pillars prevents structural misalignment. A sealing groove is provided on the bottom edge of the upper mold, and a sealing element is provided on the top edge of the lower mold. This ensures the sealing of the upper and lower molds after they are joined. The upper and lower heating pipes are respectively installed inside the four sides of the upper and lower molds. The use of this structure can maximize the protection of the upper and lower molds from unnecessary shrinkage caused by temperature differences during the injection of molten material, thereby reducing the impact on the quality of the finished product. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the axial side view of the main body of a rubber stopper injection molding equipment according to the present invention;

[0019] Figure 2 This is a schematic diagram of the internal structure of the upper mold assembly of a rubber stopper injection molding equipment according to this utility model;

[0020] Figure 3 This is a three-dimensional structural diagram of the lower mold assembly of a rubber stopper injection molding equipment according to this utility model;

[0021] Figure 4 This is a three-dimensional structural diagram of the pusher assembly of a rubber stopper injection molding equipment according to this utility model.

[0022] In the diagram: 1. Frame; 2. Hydraulic push rod; 3. Upper module; 301. Upper mold; 302. Injection port; 303. Upper guide sleeve; 304. Upper heat sink; 305. Positioning pin; 306. Sealing groove; 307. Upper heating pipe; 4. Lower module; 401. Lower mold; 402. Fixing base; 403. Lower guide sleeve; 404. Lower heat sink; 405. Positioning hole; 406. Sealing component; 407. Lower heating pipe; 408. Heat conduction component; 5. Pushing assembly; 501. Hydraulic spring rod; 502. Fixing component; 503. Discharge rod; 6. Hydraulic column; 7. Guide column. Detailed Implementation

[0023] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0024] like Figures 1 to 4As shown, a rubber stopper injection molding equipment includes a frame 1 and a pusher assembly 5. A hydraulic push rod 2 is vertically installed at the top of the inner part of the frame 1, and an upper mold 3 is connected to the bottom of the hydraulic push rod 2. A lower mold 4 is arranged directly below the upper mold 3. The pusher assembly 5 is vertically installed at the bottom of the lower mold 4, and hydraulic columns 6 are vertically connected to both sides of the lower mold 4. Guide columns 7 are vertically inserted through the four diagonal points of the upper mold 3 and the lower mold 4. The pusher assembly 5 includes a hydraulic spring rod 5. 01. Fixing component 502 and discharge rod 503: The upper end of the hydraulic spring rod 501 is provided with fixing component 502, and the top end of the hydraulic spring rod 501 is vertically connected to the discharge rod 503. The discharge rod 503 slides vertically through the middle of the fixing component 502. The fixing component 502 is fixed to the bottom surface of the lower mold 401 and is provided with two sets on the left and right sides of the heat conduction component 408. The lower mold assembly 4 includes a lower mold 401, a fixing seat 402, a lower guide sleeve 403, and a lower heat dissipation component 404. The lower mold 401 includes a positioning hole 405, a sealing element 406, a lower heating pipe 407, and a heat-conducting element 408. Two sets of fixing seats 402 are installed on each of the left and right sides of the lower mold 401. Lower guide sleeves 403 are vertically installed at each of the four diagonal corners of the lower mold 401. Lower heat sinks 404 are installed on both the front and rear sides of the lower mold 401, and positioning holes 405 are vertically opened on the top surface of the lower heat sink 404. A sealing element 406 is installed on the top edge of the lower mold 401. The lower mold 401 is equipped with a lower heating pipe 407 and a heat-conducting component 408 is installed at the bottom of the lower mold 401. After the injection molded part is formed inside the lower mold 401, the entire lower mold 4 will descend vertically under the extension and retraction of the hydraulic column 6. At the same time, it will exert a vertical downward pressure on the entire pusher assembly 5. The hydraulic spring rod 501 will shrink, which will cause the top ejector rod 503 to push vertically upward into the interior of the lower mold 401, thereby ejecting the injection molded part out of the interior of the lower mold 401.

[0025] like Figures 1 to 4As shown, the upper module 3 includes an upper mold 301, an injection port 302, an upper guide sleeve 303, an upper heat sink 304, a positioning pin 305, a sealing groove 306, and an upper heating pipe 307. The injection port 302 is installed in the center of the top of the upper mold 301, and upper guide sleeves 303 are provided at each of the four opposite corners of the upper mold 301. Upper heat sinks 304 are installed on both the front and rear sides of the upper mold 301, and positioning pins 305 are vertically connected to the bottom surface of the upper heat sink 304. A sealing groove 306 is provided on the bottom edge surface of the upper mold 301, and an upper heating pipe 307 is installed inside the upper mold 301. Positioning pins 305 are evenly arranged on the bottom surface of the upper heat sink 304, and the upper heat sink 304 is in close contact with the outer surface of the upper mold 301. The upper heating pipes 307 are respectively disposed inside the four sides of the upper mold 301. The upper guide sleeve 303 is slidably connected to the guide post 7. The bottom output end of the hydraulic push rod 2 is connected to the upper mold 301. The top surface of the upper mold 401 is provided with four sets of guide sleeves 403 and guide posts 7, which are slidably connected. The discharge rod 503 is vertically inserted through the bottom side of the lower mold 401, and the top surface of the discharge rod 503 is flush with the bottom side surface of the lower mold 401. The heat conduction component 408 and the lower heat dissipation component 404 are tightly attached to the outer surface of the lower mold 401, and the lower heating pipes 407 are respectively set in the interior of the four sides of the lower mold 401. The positioning holes 405 are equidistantly arranged on the top surface of the lower heat dissipation component 404, and the inner surface structure of the positioning holes 405 matches the outer surface structure of the positioning pins 305. By vertically arranging the positioning pins 305 on the bottom surface of the upper heat dissipation component 304 and equidistantly arranging the positioning holes 405 on the top surface of the lower heat dissipation component 404, the upper mold 301 and the lower mold 401 can have sufficient accuracy and stability after connection when they are vertically connected. With the structural setting of the guide posts 7, structural misalignment is prevented.

[0026] In summary, as Figures 1 to 4 As shown, when the upper mold 3 and lower mold 4 need to be connected, the four sets of hydraulic push rods 2 vertically installed at the top of the device frame 1 start to operate synchronously. By utilizing the vertical extension and contraction of its structure, the upper mold 3 connected to the bottom is pushed down in the vertical direction. At this time, the entire upper mold 3 will slide vertically along the surface of the guide column 7 using the upper guide sleeves 303 at the four opposite corners, thereby moving towards the lower mold 4 directly below.

[0027] As the upper module 3 and the lower module 4 approach each other, the positioning pins 305 at the bottom of the upper heat sink 304 on both sides of the upper mold 301 will be vertically inserted into the top positioning holes 405 of the lower heat sink 404 on both sides of the lower mold 401. At the same time, the sealing groove 306 on the bottom surface edge of the upper mold 301 will also be structurally connected with the sealing member 406 on the top surface edge of the lower mold 401 until the upper module 3 and the lower module 4 are completely closed. During this process, the hydraulic column 6 and the pusher assembly 5 will provide sufficient structural support for the lower module 4.

[0028] Then, under the operation of the upper heating pipe 307 and lower heating pipe 407 installed inside the four side facades of the upper mold 301 and the lower mold 401 respectively, the upper mold 301 and the lower mold 401 will be heated to a certain extent at the same time. This ensures that after the molten plastic is injected into the upper mold 301 and the lower mold 401 through the injection port 302, it will not fail to fill the entire mold cavity due to unnecessary temperature difference.

[0029] After injection molding, as the internal injection molded part cools down, the upper heat dissipation component 304, lower heat dissipation component 404, and heat conduction component 408 installed on the sides of the upper mold 301 and lower mold 401 will simultaneously provide heat conduction and heat dissipation assistance to ensure the molding speed of the injection molded part. Finally, after the injection molded part cools and forms, the hydraulic push rod 2 will drive the entire structure of the upper mold assembly 3 to rise vertically, while the hydraulic column 6 will drive the entire lower mold assembly 4 to fall vertically. At this time, a vertical downward force will be generated on the entire push assembly 5, causing the hydraulic spring rod 501 to be vertically compressed. At the same time, the ejector rod 503 connected vertically at its top will be pushed vertically upward to the interior of the lower mold 401, thereby ejecting the injection molded part from the interior of the lower mold 401 and completing the rapid demolding operation.

[0030] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A rubber stopper injection molding equipment, comprising a frame (1) and a pusher assembly (5), characterized in that: The device frame (1) has a hydraulic push rod (2) vertically installed at the top inside, and the bottom of the hydraulic push rod (2) is connected to the upper module (3). The lower module (4) is located directly below the upper module (3). The pushing component (5) is vertically installed at the bottom of the lower module (4). The left and right sides of the lower module (4) are vertically connected to hydraulic columns (6). The four diagonal corners of the upper module (3) and the lower module (4) are vertically connected to guide columns (7). The pushing component (5) includes a hydraulic spring rod (501), a fixing part (502), and a discharge rod (503). The upper end of the hydraulic spring rod (501) is provided with a fixing part (502), and the top end of the hydraulic spring rod (501) is vertically connected to the discharge rod (503).

2. The rubber stopper injection molding equipment according to claim 1, characterized in that, The upper module (3) includes an upper mold (301), a filling port (302), an upper guide sleeve (303), an upper heat sink (304), a positioning pin (305), a sealing groove (306), and an upper heating pipe (307). The filling port (302) is installed in the middle of the top of the upper mold (301), and the upper guide sleeve (303) is provided at each of the four opposite corners of the upper mold (301). The upper heat sink (304) is installed on both the front and rear sides of the upper mold (301), and the positioning pin (305) is vertically connected to the bottom surface of the upper heat sink (304). The sealing groove (306) is opened on the bottom edge surface of the upper mold (301), and the upper heating pipe (307) is installed inside the upper mold (301).

3. The rubber stopper injection molding equipment according to claim 2, characterized in that, The positioning stakes (305) are arranged at equal intervals on the bottom surface of the upper heat sink (304), and the upper heat sink (304) is in close contact with the outer surface of the upper mold (301). The upper heating pipes (307) are respectively arranged inside the four sides of the upper mold (301).

4. The rubber stopper injection molding equipment according to claim 2, characterized in that, The upper guide sleeve (303) is slidably connected to the guide post (7), and the bottom output end of the hydraulic push rod (2) is connected to the top surface of the upper mold (301) and is provided with four sets.

5. The rubber stopper injection molding equipment according to claim 1, characterized in that, The lower module (4) includes a lower mold (401), a fixing seat (402), a lower guide sleeve (403), a lower heat sink (404), a positioning hole (405), a sealing element (406), a lower heating pipe (407), and a heat conduction element (408). Two sets of fixing seats (402) are installed on each of the left and right sides of the lower mold (401), and a lower guide sleeve (403) is vertically arranged at each of the four diagonal corners of the lower mold (401). The lower heat sink (404) is installed on both the front and rear sides of the lower mold (401), and a positioning hole (405) is vertically opened on the top surface of the lower heat sink (404). A sealing element (406) is installed on the top edge of the lower mold (401), and a lower heating pipe (407) is installed inside the lower mold (401). A heat conduction element (408) is installed in the bottom of the lower mold (401).

6. The rubber stopper injection molding equipment according to claim 5, characterized in that, The lower guide sleeve (403) is slidably connected to the guide post (7), and the discharge rod (503) is vertically inserted through the inner bottom side of the lower mold (401), and the top surface of the discharge rod (503) is flush with the inner bottom surface of the lower mold (401).

7. The rubber stopper injection molding equipment according to claim 5, characterized in that, The heat-conducting component (408) and the lower heat-dissipating component (404) are closely attached to the outer surface of the lower mold (401), and the lower heating pipes (407) are respectively disposed inside the four sides of the lower mold (401). The positioning holes (405) are equidistantly arranged on the top surface of the lower heat-dissipating component (404), and the inner surface structure of the positioning holes (405) matches the outer surface structure of the positioning pins (305).

8. The rubber stopper injection molding equipment according to claim 5, characterized in that, The discharge rod (503) slides vertically through the middle of the fixing member (502), and the fixing member (502) is fixed to the bottom surface of the lower mold (401) and is provided with two sets on the left and right sides of the heat-conducting member (408).

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