Extrusion forming device for producing round head
By designing an extrusion molding device for the production of circular heads, and utilizing a hydraulic cylinder to drive the arc-shaped die head and the unloading ejector structure, the problems of inaccurate positioning and inconvenient handling in the head forming mold were solved, thus achieving efficient and precise forming of the head.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 河南九天封头制造有限公司
- Filing Date
- 2025-07-07
- Publication Date
- 2026-07-07
AI Technical Summary
Existing head forming molds are inaccurate in positioning the head before forming and are inconvenient to handle the head blank, which affects processing efficiency.
An extrusion molding device for producing circular heads was designed, including a device platform, a molding platform, a support column, a hydraulic cylinder, a spring support, and a discharge ejector. The hydraulic cylinder drives the arc die head for extrusion molding, and the spring support and discharge ejector facilitate the positioning and removal of the head blank.
It improves the accuracy and efficiency of end cap forming and processing, ensures accurate positioning and easy handling of end cap blanks, and enhances processing efficiency.
Smart Images

Figure CN224463515U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of circular head forming devices, specifically an extrusion forming device for the production of circular heads. Background Technology
[0002] A circular end cap is a component used to seal the end of a container, isolating it from the internal and external media; it is also called an end cap. It is typically used at the ends of cylindrical containers to achieve a sealing function. Circular end caps require extrusion molding during production.
[0003] For example, announcement number CN221289316U (titled "A Molding Mold for Head Production") includes a base and further includes: a mounting groove disposed above the base, a lower mold disposed inside the mounting groove and movably connected to the base, a molding groove disposed at the upper end of the lower mold, and two positioning holes disposed on the side wall of the lower mold, the two positioning holes being disposed on both sides of the lower mold; and two telescopic cavities disposed on the inner wall of the mounting groove, each of the two telescopic cavities containing a positioning block, the positioning block being slidably connected to the base, the positioning block aligning with the positioning hole. The base should be equipped with two second electric actuators on both sides, which are fixedly connected to the base. The telescopic ends of the second electric actuators are connected to the positioning blocks. A beam plate is positioned above the base, and an upper mold is positioned below the beam plate. The upper mold is connected to the beam plate by screws. The upper mold and lower mold are correspondingly positioned. Sleeves are provided at the four corners of the beam plate and are fixedly connected to the beam plate. A connecting rod is provided below each of the four sleeves. One end of the connecting rod is fixedly connected to the base, and the other end of the connecting rod extends into the interior of the sleeve and is slidably connected to the sleeve.
[0004] The aforementioned head forming mold uses a push rod structure to assist in unloading the formed head. However, the accuracy of the head's positioning before forming is poor, and it is inconvenient to pick up the head blank, which affects the efficiency of head forming. To address this, we provide an extrusion forming device for producing circular heads. Utility Model Content
[0005] The purpose of this utility model is to provide an extrusion molding device for the production of circular heads, so as to solve the problem mentioned in the background art that the existing head forming mold uses a push rod structure to assist in the unloading of the head after forming, but the accuracy of the head positioning before forming is poor and the head blank plate is inconvenient to pick up, which affects the efficiency of head forming.
[0006] To achieve the above objectives, the present invention provides the following technical solution: an extrusion molding device for producing circular end caps, comprising a device platform, two grounding seats welded to the bottom of the device platform, an electric push rod fixed to the outer wall of one grounding seat by screws, a connecting plate welded to the front end face of the device platform, and a support platform welded to the front end face of the connecting plate.
[0007] Also includes:
[0008] A forming platform is welded to the upper center of the device platform, and a forming groove is provided inside the forming platform. A positioning frame is provided at the top edge of the forming groove, and the positioning frame and the forming platform are an integral structure.
[0009] Support columns are provided on the outside of the forming platform. There are four support columns, and each of the four support columns has a top platform at its upper end. The two ends of the four support columns are welded to the top platform and the device platform, respectively. A hydraulic cylinder is provided at the upper end of the top platform. The piston rod of the hydraulic cylinder passes through and extends to the bottom of the top platform. An arc-shaped mold head is welded to one end of the piston rod of the hydraulic cylinder.
[0010] A spring support is welded to the upper center of the frame base, and a bearing platform is welded to the upper end of the spring support. A head blank is placed on the upper end of the bearing platform.
[0011] The material ejector is located inside the forming groove. There are two material ejector holes, and a discharge ejector is movably installed inside each of the two material ejector holes. A support block is welded to the lower end of the two discharge ejector.
[0012] Preferably, an end block is welded to one end of the electric push rod piston rod, and a linkage rod is welded between the support block and the end block.
[0013] Preferably, four guide rods and four movable sleeve rods are provided between the support platform and the frame platform, and the four guide rods and four movable sleeve rods are welded to the frame platform and the support platform respectively.
[0014] Preferably, a limiting plate is welded to the upper end of each of the four guide rods, and a through hole is provided at one end of each of the four movable sleeve rods. The size of the limiting plate is larger than the diameter of the through hole.
[0015] Preferably, the arc-shaped die head and the forming groove are located on the same vertical line, and the arc-shaped die head is connected to the top platform for lifting and lowering via a hydraulic cylinder.
[0016] Preferably, lifting holes are provided at the connection positions of the two unloading top bars and the device platform, and the two lifting holes are integral with the device platform.
[0017] Preferably, four limiting posts are provided on the outer walls of the end cap blank, and the four limiting posts are all integral with the support platform.
[0018] Compared with the prior art, the beneficial effects of this utility model are:
[0019] This invention stacks the end cap blanks to be extruded onto the upper part of a support platform. Under the action of spring supports, as the number of end cap blanks decreases, the support platform is gradually lifted, making it easier for workers to pick up the end cap blanks from a higher position for extrusion molding of circular end caps. During molding, end cap blanks of the same diameter are placed inside the positioning circular frame to ensure the accuracy of extrusion molding. This invention overcomes the problem that existing end cap molding molds use push rod structures to assist in unloading the molded end caps, but the accuracy of positioning the end caps before molding is poor, and it is inconvenient to pick up the end cap blanks, which affects the efficiency of end cap molding. Attached Figure Description
[0020] Figure 1 This is a front view of the extrusion molding device for producing circular heads according to this utility model.
[0021] Figure 2 This is a top view of the extrusion molding device for producing circular heads according to this utility model;
[0022] Figure 3 This is a bottom view of the extrusion molding device for producing circular heads according to this utility model;
[0023] Figure 4 This is a cross-sectional view of the internal structure of the extrusion molding device for producing circular heads according to this utility model;
[0024] In the diagram: 1. Device platform; 2. Support column; 3. Top platform; 4. Hydraulic cylinder; 5. Forming platform; 6. Forming groove; 7. Positioning frame; 8. Arc mold head; 9. Frame platform; 10. Guide column; 11. Movable sleeve rod; 12. Spring support; 13. Bearing platform; 14. Limiting column; 15. End plate; 16. Grounding seat; 17. Top material through hole; 18. Unloading top rod; 19. Lifting through hole; 20. Connecting plate; 21. Support block; 22. End block; 23. Electric push rod; 24. Linkage rod; 25. Limiting plate; 26. Sleeve through hole. Detailed Implementation
[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0026] Please see Figure 1-4An embodiment of this utility model is provided: an extrusion molding device for producing circular end caps, including a device platform 1. Two grounding seats 16 are welded to the bottom of the device platform 1. An electric push rod 23 is fixed to the outer wall of one grounding seat 16 by screws. A connecting plate 20 is welded to the front end face of the device platform 1. A frame platform 9 is welded to the front end face of the connecting plate 20.
[0027] Also includes:
[0028] The forming platform 5 is welded and set at the upper center of the device platform 1, and the forming platform 5 has a forming groove 6 inside. A positioning frame 7 is set at the top edge of the forming groove 6. The positioning frame 7 and the forming platform 5 are an integral structure.
[0029] Support columns 2 are set on the outside of the forming platform 5. There are four support columns 2, and each of the four support columns 2 has a top platform 3 at its upper end. The two ends of the four support columns 2 are welded to the top platform 3 and the device platform 1, respectively. A hydraulic cylinder 4 is set at the upper end of the top platform 3. The piston rod of the hydraulic cylinder 4 passes through and extends to the bottom of the top platform 3. An arc mold head 8 is welded to one end of the piston rod of the hydraulic cylinder 4.
[0030] The spring support 12 is welded to the upper center of the support platform 9, and a bearing platform 13 is welded to the upper end of the spring support 12. A head blank plate 15 is placed on the upper end of the bearing platform 13.
[0031] There are two ejector holes 17, which are set inside the forming circular groove 6. Each ejector hole 17 has a movably installed discharge ejector rod 18 inside it. The lower end of the two discharge ejector rods 18 is welded with a support block 21.
[0032] In use, the end cap blanks 15 to be extruded are stacked on the upper part of the support platform 13. Under the action of the spring support 12, as the number of end cap blanks 15 decreases, the support platform 13 is gradually lifted, making it easier for the staff to pick up the end cap blanks 15 from a high position for extrusion molding of the circular end cap. During molding, end cap blanks 15 of the same diameter are placed inside the positioning circular frame 7 to ensure the accuracy of extrusion molding. Then, the hydraulic cylinder 4 drives the arc die head 8 to press down, pressing the end cap blanks 15 into the forming circular groove 6 for extrusion molding to obtain the required circular end cap structure. After processing, the hydraulic cylinder 4 drives the arc die head 8 to return to its original position, and then the electric push rod 23 drives the support block 21 to rise and move, so that the two unloading top rods 18 pass through the lifting through hole 19 and the top material through hole 17, and push out the circular end cap after extrusion molding in the forming circular groove 6 for unloading, so as to facilitate material discharge.
[0033] Please see Figure 3 An end block 22 is welded to one end of the piston rod of the electric push rod 23. A linkage rod 24 is welded between the support block 21 and the end block 22. The end block 22 welded to one end of the piston rod of the electric push rod 23 facilitates the connection of the linkage rod 24 to one end of the piston rod of the electric push rod 23. Please refer to [link / reference]. Figure 4 Four guide rods 10 and four movable sleeve rods 11 are provided between the support platform 13 and the frame platform 9. The four guide rods 10 and four movable sleeve rods 11 are welded to the frame platform 9 and the support platform 13, respectively. The four guide rods 10 and four movable sleeve rods 11 provided between the support platform 13 and the frame platform 9 serve to facilitate the lifting and guiding movement of the support platform 13 and the frame platform 9. Please refer to [link / reference]. Figure 4 Each of the four guide pillars 10 has a limiting plate 25 welded to its upper end, and each of the four movable sleeve rods 11 has a through hole 26 at one end. The size of the limiting plate 25 is larger than the diameter of the through hole 26. The limiting plates 25 welded to the upper ends of the four guide pillars 10 serve to prevent the movable sleeve rods 11 from detaching from the guide pillars 10. Please refer to [link / reference]. Figure 1 The arc-shaped die head 8 and the forming groove 6 are located on the same vertical line. The arc-shaped die head 8 is connected to the top platform 3 for lifting and lowering via a hydraulic cylinder 4. Please refer to [link / reference]. Figure 3 Lifting through holes 19 are provided at the connection points between the two unloading top rods 18 and the device platform 1. The two lifting through holes 19 are integral with the device platform 1. These holes facilitate the lifting and lowering movement of the unloading top rods 18 and the device platform 1. Please refer to [link / reference]. Figure 1 Four limiting posts 14 are provided on the outer walls of the end cap blank 15. The four limiting posts 14 are integrated with the bearing platform 13. The four limiting posts 14 provided on the outer walls of the end cap blank 15 serve to limit the contact of the end cap blank 15.
[0034] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
Claims
1. An extrusion molding device for producing circular heads, comprising a device platform (1), two grounding seats (16) are welded to the bottom of the device platform (1), an electric push rod (23) is fixed to the outer wall of one grounding seat (16) by screws, a connecting plate (20) is welded to the front end face of the device platform (1), and a frame platform (9) is welded to the front end face of the connecting plate (20). Its features are: Also includes: The forming platform (5) is welded to the upper center of the device platform (1), and the forming platform (5) is provided with a forming groove (6) inside. A positioning circle frame (7) is provided at the top edge of the forming groove (6). The positioning circle frame (7) and the forming platform (5) are an integral structure. Support columns (2) are set on the outside of the forming platform (5). There are four support columns (2), and each of the four support columns (2) is provided with a top platform (3). The two ends of the four support columns (2) are welded to the top platform (3) and the device platform (1) respectively. A hydraulic cylinder (4) is provided at the upper end of the top platform (3). The piston rod of the hydraulic cylinder (4) passes through and extends to the bottom of the top platform (3). An arc mold head (8) is welded to one end of the piston rod of the hydraulic cylinder (4). A spring support (12) is welded to the upper center of the frame base (9), and a bearing platform (13) is welded to the upper end of the spring support (12), and a head blank plate (15) is placed on the upper end of the bearing platform (13). There are two top material perforations (17), which are located inside the forming circular groove (6). Each of the two top material perforations (17) is movably connected with a discharge top rod (18), and a support block (21) is welded to the lower end of the two discharge top rods (18).
2. The extrusion molding apparatus for producing circular heads according to claim 1, characterized in that: An end block (22) is welded to one end of the piston rod of the electric push rod (23), and a linkage rod (24) is welded between the support block (21) and the end block (22).
3. The extrusion molding apparatus for producing circular heads according to claim 1, characterized in that: Four guide rods (10) and four movable sleeve rods (11) are provided between the bearing platform (13) and the support platform (9). The four guide rods (10) and the four movable sleeve rods (11) are welded to the support platform (9) and the bearing platform (13) respectively.
4. The extrusion molding apparatus for producing circular heads according to claim 3, characterized in that: The upper ends of the four guide rods (10) are all welded with limit plates (25), and one end of each of the four movable sleeve rods (11) is provided with a connecting hole (26). The size of the limit plate (25) is larger than the diameter of the connecting hole (26).
5. The extrusion molding apparatus for producing circular heads according to claim 1, characterized in that: The arc mold head (8) and the forming groove (6) are located on the same vertical line. The arc mold head (8) is connected to the top platform (3) by a hydraulic cylinder (4) for lifting and lowering.
6. The extrusion molding apparatus for producing circular heads according to claim 1, characterized in that: Lifting holes (19) are provided at the connection positions of the two discharge top bars (18) and the device platform (1), and the two lifting holes (19) and the device platform (1) are an integral structure.
7. The extrusion molding apparatus for producing circular heads according to claim 1, characterized in that: Four limiting posts (14) are provided on the outer walls of the end cap plate (15), and the four limiting posts (14) are integrated with the support platform (13).