A polyurethane sectional mold with convenient sealing baffle and joint pressing device

Abstract

The utility model relates to a polyurethane segmented mould with convenient plugging baffle and joint pressing device. The polyurethane segmented mould's plugging baffle installation and dismounting are inconvenient currently, and cannot carry out product joint technology. The utility model discloses upper die and lower die, the upper die with the lower die between form cavity, still include a plurality of convenient plugging baffles and a plurality of joint pressing devices, the lower die front and rear both ends symmetry is provided with the recess that communicates with the cavity, the convenient plugging baffle is arranged in the recess respectively, and the convenient plugging baffle is pasted with the product, the lower die is close to the left and right two ends symmetry of bottom and is provided with the clamping slot, the joint pressing device is arranged in the clamping slot, and the joint pressing device is arranged respectively in the upper of the adjacent two ends of the product to be jointed. The utility model can make the convenient plugging baffle more flexible, convenient, and can carry out polyurethane segmented mould pressing vulcanization, and can carry out polyurethane joint vulcanization.

Description

Technical Field

[0001] This utility model relates to the field of mold-supporting tooling technology, specifically to a polyurethane segmented mold with a convenient sealing baffle and joint clamping device. Background Technology

[0002] Polyurethane segmented molds are special molds that can produce multi-specification, large-diameter, annular polyurethane sealing products. Their advantages include low cost, high precision, and the ability to produce multi-specification segmented sealing parts. They also enable segmented products to have excellent appearance, high cross-sectional accuracy, and high reliability.

[0003] Traditional polyurethane segmented molds typically employ screw-locked sealing baffles at both ends along their length. These baffles prevent uncured polyurethane material from leaking from the mold cavity during segmented casting, acting as a barrier. They also prevent pressure leakage during molding, maintaining pressure. In continuous production, the sealing baffles must be installed before each row of products is poured, and removed after vulcanization. If the screws are not tightened sufficiently, glue may become trapped in the gaps of the sealing baffles after molding. This not only increases the risk of product defects but also hinders operator removal of the baffles and demolding, thus impacting operational and production efficiency.

[0004] Furthermore, polyurethane segmented molds are generally not conducive to product jointing processes. Special joint molds need to be processed separately to complete the segmented product jointing. This is because both ends of the product to be joined are pre-treated before jointing. If the product is directly put into the mold, the product cross-section will not fit firmly with the mold, resulting in gaps. When liquid polyurethane material is poured into the reserved joint area, the polyurethane material will flow into the gaps, thereby damaging the original cross-sectional structure and causing insufficient glue at the joint area, leading to joint breakage. Therefore, segmented molds are usually not used for product jointing.

[0005] Therefore, there is an urgent need for a polyurethane segmented mold that allows for easy installation and disassembly of the sealing baffle and has product joint functionality. Summary of the Invention

[0006] The purpose of this utility model is to provide a polyurethane segmented mold with a convenient sealing baffle and joint clamping device, so as to at least solve the problems of inconvenient installation and disassembly of the sealing baffle and the inability to make product joints in the current polyurethane segmented mold.

[0007] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A polyurethane segmented mold with convenient sealing baffles and joint clamping devices includes an upper mold and a lower mold, with a cavity formed between the upper mold and the lower mold, and also includes multiple convenient sealing baffles and multiple joint clamping devices. The lower mold has symmetrical grooves at both ends that communicate with the cavity, and the convenient sealing baffles are respectively disposed in the grooves and fit the product. The lower mold has symmetrical slots on its left and right ends near the bottom. The joint clamping device is located in the slots and is located above the adjacent ends of the product to be joined.

[0008] Furthermore, the upper mold is a rectangular parallelepiped with a smooth cover plate structure.

[0009] Furthermore, the lower mold has an open planar injection cavity structure.

[0010] Furthermore, the length of the slot is the same as the length of the lower mold, and the opening end of the slot is flush with the side of the lower mold.

[0011] Furthermore, the groove is disposed above the slot, the length of the groove is the same as the width of the lower mold, and the opening end of the groove is flush with the top surface of the lower mold.

[0012] Furthermore, the length of the convenient sealing baffle is greater than the length of the groove, and the convenient sealing baffle and the lower mold are in the shape of a guillotine.

[0013] Furthermore, the joint clamping device includes a frame, a metal pressure plate, and a clamping screw. The two ends of the frame are respectively disposed in the slots, the metal pressure plate is disposed on the top of the lower mold, and the clamping screw passes through the frame and is connected to the metal pressure plate.

[0014] Furthermore, the frame is a gate-shaped structure, including a left support and a right support. One end of the left support and the right support are respectively disposed in the slot, and the other end of the left support and the right support are connected by a movable shaft.

[0015] Furthermore, the right bracket includes an integrally formed connecting rod and a support rod. The connecting rod is arranged parallel to the upper part of the lower mold, and the bottom end of the support rod is disposed in the slot.

[0016] Furthermore, both the left bracket and the support rod are L-shaped.

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. This utility model provides a polyurethane segmented mold with a convenient sealing baffle and a joint clamping device. The lower mold has a slot and a groove. A convenient sealing baffle is placed in the groove, and a joint clamping device is placed in the slot. The convenient sealing baffle is embedded in both ends of the mold and fits snugly against the product. The convenient sealing baffle extends outside the groove, forming a guillotine shape with the mold. This design makes the installation and removal of the convenient sealing baffle more flexible and convenient, reducing manual operation. Furthermore, after the segmented product has vulcanized, the product can be lifted along with the convenient sealing baffle for easy demolding. Even if removal is difficult, a pry bar can be used to pry the convenient sealing baffle from the part protruding from the mold, saving time and effort and improving efficiency.

[0018] 2. The joint clamping device of this utility model is installed on the top of the product. The two ends of the part to be joined are clamped by the joint clamping device, so that the part to be joined is tightly fitted with the mold cavity until the polyurethane material is close to curing. Then the joint clamping device is quickly removed and the joint is molded and vulcanized. This avoids problems such as joint misalignment and joint breakage, and increases the functionality of the mold. It can carry out polyurethane segmented molding and vulcanization as well as polyurethane joint vulcanization. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other embodiments can be obtained from these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the main cross-section of the upper and lower molds of this utility model; Figure 2 yes Figure 1 Top view; Figure 3 This is a schematic diagram of the main cross-section of the convenient-to-install sealing baffle of this utility model; Figure 4 yes Figure 3 Top view; Figure 5 This is a front cross-sectional schematic diagram of the mounting joint clamping device of this utility model; Figure 6 yes Figure 5 Top view; The diagram is labeled as follows: 1-Upper mold, 2-Lower mold, 3-Slot, 4-Groove, 5-Convenient sealing baffle, 6-Joint clamping device, 7-Metal pressure plate, 8-Clamping screw, 9-Moving shaft. Detailed Implementation

[0021] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. The drawings illustrate preferred embodiments of this utility model. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this utility model.

[0022] In the description of this utility model, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection or setting, a detachable connection or setting, or an integral connection or setting. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0024] In the description of this utility model, Figure 1 The direction shown is defined as the front end, and Figure 3 The end of the mold protruding from the middle of the convenient sealing baffle 5 is defined as the left end.

[0025] Example: This embodiment provides a polyurethane segmented mold with convenient sealing baffles and joint clamping devices, including an upper mold 1 and a lower mold 2, with a cavity formed between the upper mold 1 and the lower mold 2, and also includes two convenient sealing baffles 5 and two joint clamping devices 6.

[0026] The upper mold 1 is a rectangular smooth cover plate structure, and the lower mold 2 is an open planar injection cavity structure.

[0027] Specifically, the lower mold 2 has symmetrically arranged grooves 4 at both ends that communicate with the cavity. Convenient sealing baffles 5 are respectively embedded in the grooves 4 and fit the product. On the one hand, this makes it more flexible and convenient to install and remove the convenient sealing baffles 5, eliminating the need for screw tightening and reducing manual operation. On the other hand, after the segmented product vulcanization is completed, the product can be lifted up along with the convenient sealing baffles 5 for easy demolding. Even if it is difficult to remove, a pry bar can be used to pry it from the part of the convenient sealing baffles 5 that protrudes from the mold, saving time and effort.

[0028] The length of the groove 4 is the same as the width of the lower mold 2, and both sides of the groove 4 are open. The top opening end of the groove 4 is flush with the top surface of the lower mold 2, and the left opening end of the groove 4 is flush with the left end of the lower mold 2. The width of the convenient sealing baffle 5 is the same as the height of the groove 4, and the length of the convenient sealing baffle 5 is greater than the length of the groove 4. The convenient sealing baffle 5 is embedded in the groove 4 and is in close contact with the inner wall of the groove 4. The convenient sealing baffle 5 and the lower mold 2 are in the shape of a guillotine.

[0029] When implementing the segmented molding process, the convenient sealing baffle 5 is flatly embedded into the groove 4 of the lower mold 2 before the polyurethane material is poured and molded. The convenient sealing baffle 5 seals both ends of the mold, preventing uncured polyurethane material from flowing out of the cavity and preventing pressure from leaking out from both ends. This effectively reduces the difficulty of the process operation of polyurethane segmented molding products and greatly improves operation and production efficiency.

[0030] Specifically, the lower mold 2 has symmetrical slots 3 on the left and right ends near the bottom. The joint clamping device 6 is set in the slots 3 and is respectively set above the adjacent ends of the product to be joined. The joint clamping device 6 is only used when the product is joined by a segmented mold.

[0031] The length of the slot 3 is the same as the length of the lower mold 2, and the slot 3 has openings on three sides. The side openings of the slot 3 are flush with the left and right ends of the lower mold 2, respectively, and the front and rear openings of the slot 3 are flush with the front and rear ends of the lower mold 2, respectively.

[0032] The joint clamping device 6 includes a frame, a metal pressure plate 7, and a clamping screw 8. The two ends of the frame are respectively set in the slot 3, the metal pressure plate 7 is set on the top of the lower mold 2, and the clamping screw 8 passes through the frame and is connected to the metal pressure plate 7.

[0033] In this embodiment, the frame is a gate-shaped structure, including a left support and a right support. One end of the left support and the right support are respectively set in the slot 3, and the other end of the left support and the right support are connected by a movable shaft 9, so that the left support and the right support can rotate through the movable shaft 9.

[0034] The left support is L-shaped, and the right support includes a connecting rod and a support rod. The connecting rod is cuboid and is arranged parallel to the top of the lower mold 2. The support rod is L-shaped and the connecting rod is integrally connected to the top of the support rod. The left support and the support rod are symmetrically arranged, and the bottom of the left support and the support rod are both inserted into the slot 3. The end faces of the bottom of the left support and the support rod are beveled to facilitate insertion into the slot 3.

[0035] In this embodiment, the metal pressure plate 7 is a cuboid, and its width is smaller than the width of the product. The metal pressure plate 7 is tightly attached to the top of the product to be connected. A bolt hole is opened through the connecting rod, and a fixing screw hole corresponding to the bolt hole is opened on the top of the metal pressure plate 7. The clamping screw 8 passes through the bolt hole of the connecting rod and is screwed into the fixing screw hole of the metal pressure plate 7 for fixation until the product to be connected is clamped.

[0036] The two ends of the joint to be joined are pressed together by the joint clamping device 6 until the polyurethane material is close to curing. Then the joint clamping device 6 is quickly removed and the joint is molded and vulcanized. This can avoid problems such as joint misalignment and joint breakage, and increase the functionality of the mold. It can carry out both polyurethane segmented molding and vulcanization and polyurethane joint vulcanization. The segmented mold joint process reduces the mold cost and improves the joint quality and joint qualification rate.

[0037] Specifically, the two pre-treated segments to be joined are placed into the mold cavity, leaving space for the joint. Then, the frame of the joint clamping device 6 is adjusted and installed in the slot 3 via the movable shaft 9. The two ends to be joined are clamped by the metal pressure plate 7, so that the product cross section fits tightly with the mold cavity. Finally, the uncured polyurethane material is poured into the reserved joint space. When it is close to curing, the joint clamping device 6 is adjusted and removed via the movable shaft 9, and the joint molding vulcanization can be carried out.

[0038] The above-described specific examples are for illustrative purposes only and are not intended to limit the scope of this invention. Those skilled in the art to which this invention pertains can make various simple deductions, modifications, or substitutions based on the concept of this invention.

Claims

1. A polyurethane segmented mold with a convenient sealing baffle and joint clamping device, comprising an upper mold (1) and a lower mold (2), wherein a cavity is formed between the upper mold (1) and the lower mold (2), characterized in that: It also includes multiple convenient sealing baffles (5) and multiple joint clamping devices (6); The lower mold (2) is symmetrically provided with grooves (4) communicating with the cavity at both ends. The convenient sealing baffles (5) are respectively provided in the grooves (4) and the convenient sealing baffles (5) fit the product. The lower mold (2) has symmetrical slots (3) on the left and right ends near the bottom. The joint clamping device (6) is located in the slots (3) and is located above the adjacent ends of the product to be joined.

2. The polyurethane segmented mold with a convenient sealing baffle and joint clamping device according to claim 1, characterized in that: The upper mold (1) is a rectangular smooth cover plate structure.

3. A polyurethane segmented mold with a convenient sealing baffle and joint clamping device according to claim 1, characterized in that: The lower mold (2) is an open planar injection cavity structure.

4. A polyurethane segmented mold with a convenient sealing baffle and joint clamping device according to claim 1, characterized in that: The length of the slot (3) is the same as the length of the lower mold (2), and the opening end of the slot (3) is flush with the side of the lower mold (2).

5. A polyurethane segmented mold with a convenient sealing baffle and joint clamping device according to claim 1, characterized in that: The groove (4) is located above the slot (3). The length of the groove (4) is the same as the width of the lower mold (2), and the opening end of the groove (4) is flush with the top surface of the lower mold (2).

6. A polyurethane segmented mold with a convenient sealing baffle and joint clamping device according to claim 1, characterized in that: The length of the convenient sealing baffle (5) is greater than the length of the groove (4), and the convenient sealing baffle (5) and the lower mold (2) are in the shape of a guillotine.

7. A polyurethane segmented mold with a convenient sealing baffle and joint clamping device according to claim 1, characterized in that: The joint clamping device (6) includes a frame, a metal pressure plate (7) and a clamping screw (8). The two ends of the frame are respectively set in the slot (3). The metal pressure plate (7) is set on the top of the lower mold (2). The clamping screw (8) passes through the frame and is connected to the metal pressure plate (7).

8. A polyurethane segmented mold with a convenient sealing baffle and joint clamping device according to claim 7, characterized in that: The frame is a gate-shaped structure, including a left support and a right support. One end of the left support and the right support are respectively set in the slot (3), and the other end of the left support and the right support are connected by a movable shaft (9).

9. A polyurethane segmented mold with a convenient sealing baffle and joint clamping device according to claim 8, characterized in that: The right bracket includes an integrally formed connecting rod and a support rod. The connecting rod is arranged parallel above the lower mold (2), and the bottom end of the support rod is located in the slot (3).

10. A polyurethane segmented mold with a convenient sealing baffle and joint clamping device according to claim 9, characterized in that: Both the left bracket and the support rod are L-shaped.

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