Pressing device for vulcanizing mold

Abstract

The pressing device comprises a fixed base, a rotating frame, a lower mold and an upper mold, a fixed frame is fixedly arranged on the fixed base, a rotating motor connected with the rotating frame is arranged on the fixed frame, a rotating groove is formed in the outer wall of the rotating frame, and the lower mold and the upper mold are arranged in the rotating groove. A reciprocating lead screw extending to the position above the rotating frame is arranged in the rotating groove, the reciprocating lead screw is connected with the fixing frame through a transmission mechanism, the reciprocating lead screw is sleeved with a connecting frame in a threaded mode, the connecting frame is connected with the upper die through a connecting mechanism, a fixing sleeve is arranged on the upper end face of the upper die, and the connecting frame is connected with the fixing sleeve through an anti-disengaging mechanism. According to the utility model, the rotating motor drives the rotating frame to realize the station switching of the two groups of molds, so that the vulcanizing process and the feeding process can be carried out in parallel, the waiting time caused by process interruption in the traditional single-station mode is eliminated, and the large-scale production efficiency is obviously improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to vulcanization mould technical field especially relates to a compression device for vulcanization mould. BACKGROUND

[0002] In the field of vulcanization mould, the continuity of vulcanization process and the improvement of production efficiency have been the focus of the industry. In the prior art, the traditional vulcanization mould compression device generally adopts the structure design of single set mould fixed station. Such device has significant defects in actual application.

[0003] When the single set mould enters the vulcanization stage, the operator needs to wait for the vulcanization to be completed and the mould to be opened and unloaded, and then the feeding operation of the next batch of raw materials can be carried out, which leads to obvious discontinuity between processes. From the production process, the traditional single station mode cannot realize the parallel operation of the vulcanization process and the feeding process. The vulcanization process itself needs to go through a long period of time such as heating, pressurizing and pressure maintaining, and during this period, the equipment is in idle waiting state. This single station limitation is particularly prominent in large-scale production scene, and has become the core bottleneck restricting the improvement of vulcanization processing efficiency. Therefore, a compression device for vulcanization mould is proposed again. SUMMARY

[0004] The utility model discloses a compression device for vulcanization mould to solve the shortcoming in prior art.

[0005] In order to realize the above-mentioned purpose, the utility model adopts the following technical scheme:

[0006] A compression device for vulcanization mould, comprising a fixed base, a rotating frame, a lower mould and an upper mould, characterized in that a fixed frame is fixedly arranged on the fixed base, a rotary motor connected with the rotating frame is arranged on the fixed frame, a rotating groove is arranged on the outer wall of the rotating frame, a reciprocating screw extending above the rotating frame is arranged in the rotating groove, the reciprocating screw is connected with the fixed frame through a transmission mechanism, a connecting frame is threadedly sleeved on the reciprocating screw, the connecting frame is connected with the upper mould through a connecting mechanism, a fixed sleeve is arranged on the upper end surface of the upper mould, and the connecting frame is connected with the fixed sleeve through an anti-dropping mechanism.

[0007] Preferably, the transmission mechanism comprises a gear fixedly arranged on the end of the reciprocating screw, and a gear ring meshing with the gear is arranged on the fixed frame.

[0008] Preferably, the connecting mechanism comprises a spring arranged in the fixed sleeve, and the spring is connected with the outer wall of the connecting frame and the upper end surface of the upper mould respectively at both ends.

[0009] Preferably, the anti-dropping mechanism comprises an anti-dropping block mounted on the outer wall of the connecting frame, and an anti-dropping groove corresponding to the anti-dropping block is arranged on the inner wall of the fixed sleeve.

[0010] Preferably, a limiting rod is arranged in the rotating groove, and the limiting rod is vertically arranged and slidably penetrates the adapter frame.

[0011] Preferably, the number of the reciprocating lead screws is two, and the two reciprocating lead screws are distributed at equal intervals in the circumferential direction.

[0012] The present application has the following beneficial effects:

[0013] 1. The rotating frame is driven by the rotating motor to realize the work position switching of the two sets of molds, so that the vulcanization process and the feeding process can be carried out in parallel, the waiting time caused by the process interruption in the traditional single work position mode is eliminated, and the large-scale production efficiency is significantly improved.

[0014] 2. The small displacement of the mold caused by high-temperature thermal expansion, rubber extrusion and other factors in the vulcanization process is automatically compensated after the mold is closed by using the continuous compression force storage characteristics of the spring, so that the dynamic stability of the mold closing pressure is ensured, and the product size deviation or insufficient vulcanization problem caused by pressure attenuation is avoided.

[0015] 3. When the rotating frame rotates, the reciprocating lead screw is forcibly driven to rotate by the meshing transmission of the gear and the gear ring, so that the lifting action of the adapter frame can be realized without additional power source, the transmission structure is simplified, the energy consumption is reduced, and the economic efficiency of the equipment operation is improved.

[0016] 4. The limiting rod limits the rotation freedom degree of the adapter frame, ensures the vertical lifting of the upper mold, and the cooperation structure of the anti-falling block and the anti-falling groove prevents the adapter frame and the upper mold from being separated, so that the mold fitting precision in the mold closing process is guaranteed, the problems such as flash, vulcanization defects and the like caused by mispositioning are effectively reduced, and the product yield is improved. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 A structure diagram of a pressing device for a vulcanization mold is provided for the present application;

[0018] Figure 2 A vertical section structure diagram is provided for Figure 1 ;

[0019] Figure 3 An enlarged structure diagram of A of Figure 2 ;

[0020] Figure 4 A structure diagram of the adapter frame, the spring and the anti-falling block.

[0021] In the figure: 1 fixed base, 2 rotating frame, 3 lower mold, 4 upper mold, 5 rotating groove, 6 reciprocating lead screw, 7 limiting rod, 8 adapter frame, 9 fixed sleeve, 10 fixed frame, 11 rotating motor, 12 gear, 13 gear ring, 14 spring, 15 anti-falling block. DETAILED DESCRIPTION

[0022] 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.

[0023] Reference Figures 1-4 A clamping device for vulcanizing molds includes a fixed base 1, a rotating frame 2, a lower mold 3 and an upper mold 4. The lower mold 3 is fixedly installed on the rotating frame 2, and the rotating frame 2 is rotatably connected to the fixed base 1. The specific structures of the lower mold 3 and the upper mold 4 are disclosed in the prior art. The attached drawings of this solution are only simple structural diagrams and will not be described in detail here.

[0024] A fixed frame 10 is fixedly mounted on the fixed base 1. A rotary motor 11 connected to the rotating frame 2 is mounted on the fixed frame 10. A rotating groove 5 is provided on the outer wall of the rotating frame 2. A reciprocating screw 6 extending to the top of the rotating frame 2 is provided in the rotating groove 5. The reciprocating screw 6 is connected to the fixed frame 10 through a transmission mechanism. A connecting frame 8 is threaded onto the reciprocating screw 6. The connecting frame 8 is equivalent to an irregularly shaped screw sleeve, which can move up and down within the rotating groove 5 when the reciprocating screw 6 rotates. The connecting frame 8 is connected to the upper mold 4 through a connecting mechanism. A fixed sleeve 9 is provided on the upper end face of the upper mold 4. The connecting frame 8 is connected to the fixed sleeve 9 through an anti-detachment mechanism.

[0025] The transmission mechanism includes a gear 12 fixedly mounted at the end of the reciprocating lead screw 6, and a gear ring 13 meshing with the gear 12 is provided on the fixed frame 10. With this design, once the rotary motor 11 drives the rotating frame 2 to rotate, the gear 12 can drive the reciprocating lead screw 6 to rotate under the action of the gear ring 13.

[0026] The connecting mechanism includes a spring 14 disposed within the fixed sleeve 9, with both ends of the spring 14 connected to the outer wall of the connecting frame 8 and the upper end face of the upper mold 4, respectively. When the mold is closed, the connecting frame 8 and the upper mold 4 are at their lowest height, at which point the spring 14 is in a compressed state, and its tendency to return to its original state causes the upper mold 4 to be pressed down.

[0027] It should be noted that the elastic potential energy of spring 14 is sufficient.

[0028] The anti-detachment mechanism includes an anti-detachment block 15 installed on the outer wall of the connecting frame 8, and an anti-detachment groove corresponding to the anti-detachment block 15 is provided on the inner wall of the fixing sleeve 9. The attached figure shows the structure of the anti-detachment block 15, and the anti-detachment groove is self-evident. The two work together to prevent the connecting frame 8 from detaching from the lower mold 3.

[0029] A limiting rod 7 is provided inside the rotating groove 5. The limiting rod 7 is vertically arranged and slides through the connecting frame 8. The limiting rod 7 limits the connecting frame 8 and prevents it from rotating with the reciprocating screw 6.

[0030] There are two reciprocating lead screws 6, which are evenly spaced circumferentially. As shown in the figure, one mold is in the closed state and the other is in the open state.

[0031] Components not specifically described in this utility model are all standard parts and can be purchased from the market. The specific connection methods for each component all employ mature methods from the prior art, and will not be detailed here. Content not described in detail in this specification belongs to prior art known to those skilled in the art.

[0032] When this utility model is in use, the rotary motor 11 drives the rotating frame 2 to rotate, causing the two sets of molds to alternate positions. When the mold rotates to the mold closing position, the gear 12 causes the reciprocating screw 6 to rotate under the action of the gear ring 13. The connecting frame 8 descends along the limit rod 7, and the compression spring 14 pushes the upper mold 4 down to close tightly with the lower mold 3. The other set of molds is in the open state to facilitate material release. This cycle continues.

[0033] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A clamping device for a vulcanizing mold, comprising a fixed base (1), a rotating frame (2), a lower mold (3), and an upper mold (4), characterized in that, A fixed frame (10) is fixedly provided on the fixed base (1). A rotary motor (11) connected to the rotating frame (2) is provided on the fixed frame (10). A rotating groove (5) is provided on the outer wall of the rotating frame (2). A reciprocating screw (6) extending to the top of the rotating frame (2) is provided in the rotating groove (5). The reciprocating screw (6) is connected to the fixed frame (10) through a transmission mechanism. A connecting frame (8) is threaded on the reciprocating screw (6). The connecting frame (8) is connected to the upper mold (4) through a connecting mechanism. A fixed sleeve (9) is provided on the upper end face of the upper mold (4). The connecting frame (8) is connected to the fixed sleeve (9) through an anti-detachment mechanism.

2. The clamping device for a vulcanizing mold according to claim 1, characterized in that, The transmission mechanism includes a gear (12) fixedly mounted on the end of the reciprocating lead screw (6), and a gear ring (13) meshing with the gear (12) is provided on the fixed frame (10).

3. A clamping device for a vulcanizing mold according to claim 2, characterized in that, The connecting mechanism includes a spring (14) disposed in the fixed sleeve (9), and the two ends of the spring (14) are respectively connected to the outer wall of the connecting frame (8) and the upper end face of the upper mold (4).

4. A clamping device for a vulcanizing mold according to claim 3, characterized in that, The anti-detachment mechanism includes an anti-detachment block (15) installed on the outer wall of the connecting frame (8), and the inner wall of the fixing sleeve (9) is provided with an anti-detachment groove corresponding to the anti-detachment block (15).

5. A clamping device for a vulcanizing mold according to claim 4, characterized in that, The rotating groove (5) is provided with a limiting rod (7), which is vertically arranged and slides through the connecting frame (8).

6. A clamping device for a vulcanizing mold according to claim 5, characterized in that, The number of reciprocating lead screws (6) is two, and the two reciprocating lead screws (6) are evenly spaced in the circumferential direction.

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