Vacuum cover positioning and restraining structure for press vulcanizer

Abstract

The vacuum cover positioning and restraining structure for the press vulcanizer comprises a vacuum cover and a lower frame body, the vacuum cover and the lower frame body are provided with long sides and short sides in an overlook state, supporting rods are arranged on the side walls of the long sides of the vacuum cover, matched positioning holes are formed in the side walls of the long sides of the lower frame body, and the supporting rods are arranged on the side walls of the long sides of the lower frame body. After the vacuum cover and the lower frame body are folded, the supporting rods are inserted into the positioning holes; or the supporting rod is arranged on the long side wall of the lower frame body, the positioning hole is formed in the long side wall of the vacuum cover, and the supporting rod is inserted into the positioning hole after folding. In order to solve the problem that a long vacuum cover on the press vulcanizer is prone to deformation during vacuumizing, a restraining structure that a supporting rod is inserted into a positioning hole is adopted in the press vulcanizer, specifically, after the vacuum cover and a lower frame body are folded, the supporting rod is inserted into the positioning hole, and deformation of the vacuum cover in the vacuum negative pressure state can be well avoided.

Description

Technical Field

[0001] This utility model belongs to the technical field of flat vulcanizing machines, specifically relating to a vacuum hood positioning and restraining structure for flat vulcanizing machines. Background Technology

[0002] A flat vulcanizing machine is an important piece of equipment used in the rubber and plastics industry. Its working principle is to load the unvulcanized semi-finished product into a mold, then place the mold in the gap between two hot plates, and then press and heat it to give the mold (or product) the pressure and temperature required for vulcanization, thus completing the vulcanization operation.

[0003] Flat vulcanizing machines are also equipped with vacuum hoods for use. For general flat vulcanizing machines, the effects of high temperature and vacuum suction on the vacuum hood are relatively limited. However, when processing products that are wide and long, larger vacuum hoods and lower frames are required to completely cover the products. At this time, due to their large size, they are more susceptible to the effects of high temperature and vacuum suction, resulting in inward deformation. This causes the vacuum hood and lower frame to not fit perfectly, resulting in vacuum leakage.

[0004] Based on the above problems, this application designs a vacuum hood positioning and restraining structure for a flat vulcanizing machine. Utility Model Content

[0005] To address the shortcomings of the existing technology, this utility model provides a vacuum hood positioning and restraining structure for a flat vulcanizing machine. It is suitable for vacuum hoods on vulcanizing machines with large dimensions and long lengths. During operation, it can effectively limit the inward deformation of the vacuum hood, preventing deformation and vacuum leakage. At the same time, due to the guiding and positioning of the metal bushing and support rod, it ensures the accurate docking position of the upper and lower frames, avoiding gaps and vacuum leakage.

[0006] The present invention is solved by the following technical solution.

[0007] A vacuum hood positioning and restraining structure for a flat vulcanizing machine includes a vacuum hood and a lower frame. The vacuum hood and lower frame have a long side and a short side when viewed from above. A support rod is provided on the long side wall of the vacuum hood, and a matching positioning hole is provided on the long side wall of the lower frame. When the vacuum hood and lower frame are closed, the support rod is inserted into the positioning hole; or: the support rod is located on the long side wall of the lower frame, and the positioning hole is located on the long side wall of the vacuum hood, so that when closed, the support rod is inserted into the positioning hole.

[0008] For the vacuum cover on the long flat curing press, it is easy to deform when vacuumizing, aiming at this situation, the application adopts the restraining structure that the support rod is inserted into the positioning hole, specifically, after the vacuum cover and the lower frame body are folded, the support rod is inserted into the positioning hole, which can well avoid the deformation of the vacuum cover under the vacuum negative pressure state; at the same time, because of the guiding and positioning of the metal bushing and the support rod, the accuracy of the butt joint position of the upper and lower frames is ensured.

[0009] In a preferred embodiment, the support rod is two, and the two support rods are arranged at the approximately middle positions of the long side walls of the vacuum cover or the lower frame body, and the positioning hole is matched with two, and the two groups are symmetrically arranged, so that the restraining force is stronger and the effect is better.

[0010] In a preferred embodiment, the long side wall of the vacuum cover is provided with an upper positioning plate and a lower positioning plate, which can be a welded structure, the tail end of the support rod is fixed on the upper positioning plate, and the support rod extends to the direction of the positioning hole after passing through the lower positioning plate, so that the structure is stable and the strength is high.

[0011] In a preferred embodiment, the upper part of the upper positioning plate is provided with a fixing plate, and the tail end of the support rod is fixed on the upper positioning plate through the fixing plate and matched screws, so that the installation and disassembly are convenient.

[0012] In a preferred embodiment, a guide surface is arranged on the insertion end of the support rod, so as to facilitate the insertion into the positioning hole.

[0013] In a preferred embodiment, a hole plate is arranged on the long side wall of the lower frame body, and the hole plate can be a welded structure, and the positioning hole is arranged on the hole plate.

[0014] In a preferred embodiment, a metal bushing is arranged in the positioning hole, which plays a guiding and positioning function.

[0015] In a preferred embodiment, the metal bushing is composed of two semicircular arc-shaped bushings, and the two arc-shaped bushings have a gap therebetween, so as to provide an expansion gap and facilitate assembly.

[0016] In a preferred embodiment, the metal bushing is two arranged in upper and lower positions, and each metal bushing is provided with a boss for clamping in the hole on the side facing the positioning hole, so that the strength is high after assembly and the metal bushing is not easy to fall out.

[0017] In a preferred embodiment, the metal bushing is a copper bushing, which plays a guiding and positioning function.

[0018] In a preferred embodiment, the metal bushing is assembled through a bushing bolt, so that the installation and disassembly are convenient.

[0019] Compared with the prior art, the utility model has the following beneficial effects: provide a vacuum cover positioning and restraining structure for flat vulcanizing machine, be applicable to the vacuum cover on the vulcanizing machine of size wide, length is longer, can be good in work process Limit the deformation of vacuum cover to the inside, avoid the deformation of vacuum cover and the occurrence of the phenomenon of vacuum leakage, also because the guiding and positioning of metal bush and support rod, ensure the accuracy of the butt joint position of upper frame and lower frame, avoid the gap and the phenomenon of vacuum leakage. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a structure schematic view of flat vulcanizing machine involved in the utility model.

[0021] Figure 2 It is a perspective view of flat vulcanizing machine involved in the utility model.

[0022] Figure 3 It is a perspective view of vacuum cover and lower frame body in one embodiment of the utility model.

[0023] Figure 4 It is Figure 3 It is the enlarged view of area A in the utility model.

[0024] Figure 5 It is a perspective view of two metal bushings in one embodiment of the utility model. DETAILED DESCRIPTION

[0025] The utility model will be further described in detail below by combining with the drawings and specific embodiments.

[0026] In the following embodiments, the same or similar reference signs represent the same or similar elements or elements with the same or similar functions throughout, and the following embodiments described by referring to the drawings are exemplary and are only used to explain the utility model, and cannot be understood as limiting the utility model.

[0027] In the description of the utility model, it should be understood that the terms: center, longitudinal, transverse, length, width, thickness, upper, lower, front, rear, left, right, vertical, horizontal, top, bottom, inner, outer, clockwise, counterclockwise and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as limiting the utility model. In addition, the terms: first, second and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the shown technical features. In the description of the utility model, unless otherwise explicitly specified and limited, the terms: mounting, connection, connection and the like should be understood in a broad sense, and those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0028] ReferenceFigures 1 to 5 The utility model relates to a vacuum cover positioning and restraining structure for flat curing press, including vacuum cover 1 and lower frame 2, vacuum cover 1 and lower frame 2 have long side and short side in the state of looking down, the long side lateral wall of vacuum cover 1 is equipped with support rod 13, the long side lateral wall of lower frame 2 is equipped with the matching positioning hole 23, after the folding of vacuum cover 1 and lower frame 2, support rod 13 is inserted into positioning hole 23.

[0029] Specifically, in the embodiment of the present application, the support rod 13 is two, the two support rods 13 are arranged at the approximately middle position of the long side lateral wall of the vacuum cover 1 or the lower frame 2, and the positioning hole 23 is two matched and symmetrically arranged, which makes the restraining force stronger and the effect better. In a specific structure, the long side lateral wall of the vacuum cover 1 is provided with an upper positioning plate 11 and a lower positioning plate 12, which can be a welded structural member. The tail end of the support rod 13 is fixed on the upper positioning plate 11, and the support rod 13 extends outwards after passing through the lower positioning plate 12 towards the positioning hole 23, which has stable structure and high strength. The upper part of the upper positioning plate 11 is provided with a fixing plate 111, and the tail end of the support rod 13 is fixed on the upper positioning plate 11 through the fixing plate 111 and matched screws, which is convenient for installation and disassembly.

[0030] In addition, in the present application, a guide surface 134 is arranged on the insertion end of the support rod 13, which facilitates the insertion into the positioning hole 23.

[0031] In the present application, a hole plate 21 is arranged on the long side lateral wall of the lower frame 2, which can be a welded structure, and the positioning hole 23 is arranged on the hole plate 21. A metal bushing 22 is arranged in the positioning hole 23, which plays a guiding and positioning function. Further, the metal bushing 22 is composed of two semicircular arc-shaped bushings, and there is a gap 29 between the two arc-shaped bushings, which provides an expansion gap and facilitates assembly. In the present application, the metal bushing 22 is two arranged in upper and lower positions, and each metal bushing 22 is provided with a boss 221 on the side facing the positioning hole 23 for clamping in the hole, which has high strength after assembly and is not easy to come out.

[0032] In the present application, the metal bushing 22 is a copper bushing, which plays a guiding and positioning function; and the metal bushing 22 is assembled through a bushing bolt 23, which is convenient for installation and disassembly.

[0033] The above is one embodiment of the present application. In another embodiment of the present application, the support rod 13 is arranged on the long side lateral wall of the lower frame 2, and the positioning hole 23 is arranged on the long side lateral wall of the vacuum cover 1, and the support rod 13 is inserted into the positioning hole 23 after folding, which can achieve good restraining and positioning function.

[0034] As can be seen from the above description, in the structure of the present application, when the vacuum cover 1 is closed with the lower frame 2, the supporting rod 13 is inserted into the positioning hole 23, so that the hole plate 21 where the positioning hole 23 is located is tightly combined with the supporting rod 13, forming a stable overall structure. When the vulcanizing machine starts to vacuumize, the vacuum cover will have a tendency to deform inwardly, however, due to the restraint of the supporting rod 13, this deformation tendency is effectively inhibited, thereby ensuring that the vacuum cover will not be deformed due to the suction force generated by vacuumizing. Moreover, this structure also plays a positioning function in the process of combining the vacuum cover with the lower frame, ensuring the accurate and error-free butt joint position of the vacuum cover and the lower frame. The metal bushing 22 installed on the lower frame plays a guiding role in the process of combining the vacuum cover with the lower frame, ensuring that the combination action of the two is more smooth and unobstructed.

[0035] As described above, the present application provides a vacuum cover positioning and restraining structure for a flat plate vulcanizing machine, which is suitable for a vacuum cover on a vulcanizing machine with large size and long length, can well limit the inward deformation of the vacuum cover during the working process, and avoid the deformation and vacuum leakage of the vacuum cover. At the same time, due to the guiding and positioning of the metal bushing and the supporting rod, the accurate butt joint position of the upper and lower frames is ensured, and the gap and vacuum leakage are avoided.

[0036] The protection scope of the present application includes but is not limited to the above embodiments, and the protection scope of the present application is subject to the claims, and any replacement, deformation and improvement of the present technology easily thought by those skilled in the art falls within the protection scope of the present application.

Claims

1. A vacuum bag positioning and restraining structure for a flat press, comprising a vacuum bag (1) and a lower frame (2), said vacuum bag (1) and lower frame (2) having a long side and a short side in a plan view, characterized in that, The long side wall of the vacuum cover (1) is provided with a support rod (13), and the long side wall of the lower frame body (2) is provided with a matching positioning hole (23), the support rod (13) is inserted into the positioning hole (23) after the vacuum cover (1) and the lower frame body (2) are folded. Or: the support rod (13) is arranged on the long side wall of the lower frame body (2), and the positioning hole (23) is arranged on the long side wall of the vacuum cover (1), and the support rod (13) is inserted into the positioning hole (23) after being folded.

2. The vacuum bag positioning and restraining structure for a flat plate curing press according to claim 1, wherein The support rod (13) is two, and the two support rods (13) are arranged at the substantially middle positions of the long side walls of the vacuum cover (1) or the lower frame body (2), and the positioning hole (23) is two matched positioning holes.

3. The vacuum bag positioning and restraining structure for a flat plate curing press according to claim 1, wherein The long side wall of the vacuum cover (1) is provided with an upper positioning plate (11) and a lower positioning plate (12), and the tail end of the support rod (13) is fixed on the upper positioning plate (11), and the support rod (13) extends outwards to the direction of the positioning hole (23) after penetrating through the lower positioning plate (12).

4. The vacuum bag positioning and restraining structure for a flat plate curing press according to claim 3, wherein The upper part of the upper positioning plate (11) is provided with a fixed plate (111), and the tail end of the support rod (13) is fixed on the upper positioning plate (11) through the fixed plate (111) and matched screws.

5. The vacuum bag positioning and restraining structure for a flat plate curing press according to claim 1, wherein The insertion end of the support rod (13) is provided with a guide surface (134).

6. The vacuum bag positioning and restraining structure for a flat plate curing press according to claim 1, wherein The long side wall of the lower frame body (2) is provided with a hole plate (21), and the positioning hole (23) is arranged on the hole plate (21).

7. The vacuum bag positioning and restraining structure for a flat plate curing press according to claim 6, wherein The positioning hole (23) is provided with a metal bushing (22).

8. The vacuum bag positioning and restraining structure for a flat plate curing press according to claim 7, wherein The metal bushing (22) is composed of two semicircular arc bushings, and the two arc bushings have a gap (29) therebetween.

9. The vacuum bag positioning and restraining structure for a flat plate curing press according to claim 7, wherein The metal bushing (22) is two arranged in an upper and lower mode, and each metal bushing (22) is provided with a boss (221) for clamping in the hole on the side facing the positioning hole (23).

10. The vacuum bag positioning and restraining structure for a flat plate curing press according to any one of claims 7 to 9, characterized in that, The metal bushing (22) is a copper bushing.

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