Automatic opening and closing device for multi-layer rubber mold

Abstract

The utility model relates to an automatic opening and closing device for a multi-layer rubber mold, and belongs to the technical field of rubber molds. The mold comprises an upper mold plate, a first middle mold plate, a second middle mold plate and a lower mold plate which are sequentially arranged from top to bottom, a guide limiting assembly is used for controlling the maximum distance between the first middle mold plate and the second middle mold plate, and the upper mold plate and the lower mold plate are installed on an upper heating plate and a lower heating plate of vulcanizing machine equipment respectively. The utility model aims to realize accurate and automatic opening and closing of the four-layer rubber mold, so as to avoid manual carrying of a middle mold plate, reduce the labor intensity of workers and the mold cost, and comprehensively improve the production automation degree of the multi-layer rubber mold.

Description

Technical Field

[0001] This utility model relates to an automatic opening and closing device for multi-layer rubber molds, belonging to the field of rubber mold technology. Background Technology

[0002] In the rubber molding industry, automated mold opening and closing equipment can significantly reduce the labor intensity of workers, improve production efficiency, and reduce the probability of mold damage due to operational errors. In existing equipment, some three-layer molds can be opened and closed freely using hydraulic cylinders with fixed lifting rods. However, for more complex four-layer molds, the existing fully automated equipment struggles to meet the automation requirements of multi-layer molds in practical applications due to the need for more complex opening and closing actions. For the production process of molds with four or more complex structures, the following shortcomings are currently prevalent: existing automated equipment is poorly designed to accommodate the operational needs of multi-layer molds, resulting in the production of molds with four or more layers still relying on manual handling of the middle layer template. This not only increases the labor intensity of workers but also easily leads to mold damage or scrap due to improper template placement.

[0003] To ensure the smooth operation of automated processes and improve the automation level of equipment, existing technologies lack a reasonable and effective design for the automated opening and closing structure of multi-layer molds, which limits the widespread application of automated equipment in the production of complex molds. Utility Model Content

[0004] This utility model discloses an automatic opening and closing device for multi-layer rubber molds, which aims to achieve accurate automatic opening and closing of four-layer rubber molds, so as to avoid manual handling of intermediate templates, reduce the labor intensity of workers and mold costs, and thus comprehensively improve the automation level of multi-layer rubber mold production.

[0005] The technical solution adopted by this utility model is an automatic opening and closing device for multi-layer rubber molds, which includes an upper template, a middle template one, a middle template two and a lower template arranged from top to bottom. The guide and limiting component is used to control the maximum distance between the middle template one and the middle template two. The upper template and the lower template are respectively installed on the upper heating plate and the lower heating plate of the vulcanizing machine.

[0006] Furthermore, the upper and lower templates are symmetrically provided with upper plate ears and lower plate ears on their sides, and the upper plate ears and lower plate ears are respectively fixed to the upper heating plate and the lower heating plate by screws.

[0007] Furthermore, the middle template is connected to the lifting template crossbar of the vulcanizing machine.

[0008] Furthermore, the middle template one and the middle template two are symmetrically provided with middle plate ear one and middle plate ear two on their sides, respectively. Middle plate ear one is connected to the lifting template crossbar by screws.

[0009] Furthermore, the guide limiting assembly includes a sleeve and a pull rod, with one end of the pull rod located inside the sleeve and the other end of the pull rod protruding outside the sleeve.

[0010] Furthermore, the first lug of the middle plate is provided with a cylindrical hole, and the second lug of the middle plate is provided with a rod hole. Both the cylindrical hole and the rod hole have steps. The sleeve passes through the cylindrical hole, and the other end of the pull rod passes through the rod hole and is fitted with a limiting washer. The limiting washer is fixed to the pull rod by fixing bolts.

[0011] Furthermore, the upper template is provided with positioning posts, and the middle template one, middle template two and the lower template are all provided with positioning holes that cooperate with the positioning posts.

[0012] This utility model discloses an automatic opening and closing device for multi-layer rubber molds. Its advantages include reducing the labor intensity of workers and improving mold production efficiency; at the same time, it avoids mold damage caused by incorrect placement of templates due to manual operation; it accurately controls the maximum distance between the first and second middle templates through the guide and limit components, and also guides the second middle template during its lifting and lowering process; the vulcanizing machine drives the multi-layer mold to open and close automatically, which significantly improves the accuracy of automated operation. Attached Figure Description

[0013] 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 some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a top view of the present invention;

[0015] Figure 2 for Figure 1 Schematic diagram without sleeve;

[0016] Figure 3 This is a schematic diagram of the mold closing process of this utility model;

[0017] Figure 4 for Figure 3 Schematic diagram of guide limit component in the middle;

[0018] Figure 5 This is a schematic diagram of the mold opening process for this utility model.

[0019] In the diagram: 1. Upper template; 2. Middle template one; 3. Middle template two; 4. Lower template; 5. Upper plate lug; 6. Middle plate lug one; 7. Middle plate lug two; 8. Lower plate lug; 9. Sleeve; 10. Tie rod; 11. Limiting washer; 12. Fixing bolt; 13. Positioning post; 14. Cylinder hole; 15. Rod hole; 16. Step. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit this utility model or its application or use. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0021] To further understand the invention of this utility model, the following detailed description of the specific embodiments is provided.

[0022] Example 1: As Figures 1-5 As shown, this embodiment provides an automatic opening and closing device for a multi-layer rubber mold, including an upper mold plate 1, a middle mold plate one 2, a middle mold plate two 3, and a lower mold plate 4 arranged sequentially from top to bottom. A guide and limiting component is used to control the maximum distance between the middle mold plate one 2 and the middle mold plate two 3. Specifically... Figure 1 The template 2 shown has symmetrical middle plate lugs 6 on both sides, which are connected to the lifting mold crossbar of the vulcanizing machine by screws. The template 3 has symmetrical middle plate lugs 7 on both sides, with the middle plate lugs 6 and 7 on the same side.

[0023] The guide limiting assembly includes a sleeve 9 and a pull rod 10. One end of the pull rod 10 is located inside the sleeve 9, and the other end of the pull rod 10 protrudes from the sleeve 9. Under the action of external force, the pull rod 10 can extend and retract within the sleeve 9. The pull rod 10 is T-shaped. The middle plate lug 1 6 is provided with a cylindrical hole 14, and the middle plate lug 2 7 is provided with a rod hole 15. Both the cylindrical hole 14 and the rod hole 15 have steps 16. The sleeve 9 passes through the cylindrical hole 14, and the other end of the pull rod 10 passes through the rod hole 15 and is fitted with a limiting washer 11. The limiting washer 11 is fixed to the pull rod 10 by fixing bolts 12. The step 16 in the cylindrical hole 14 is used to prevent the sleeve 9 from detaching from it, that is, to prevent the sleeve 9 from passing under the cylindrical hole 14. The step 16 in the rod hole 15 is used to limit the descent distance of the template 2 3 during the mold opening process, that is, the maximum distance between the middle template 1 2 and the middle template 2 3.

[0024] The upper template 1 and the lower template 4 are respectively installed on the upper heating plate and the lower heating plate of the vulcanizing machine. Specifically, the upper template 1 is provided with upper plate ears 5 on both sides, and the lower template 4 is provided with lower plate ears 8 on both sides. The upper plate ears 5 and the lower plate ears 8 are respectively fixed to the upper heating plate and the lower heating plate by screws. The upper plate ears 5 and the lower plate ears 8 are on the same side, and the upper plate ears 5 and the middle plate ears 6 are staggered, that is, the upper plate ears 5 and the middle plate ears 6 are not on the same side.

[0025] The specific operation of this utility model is as follows: Figures 1-5 As shown, where Figure 3 The mold is in a fully closed state, but the guide and limiting components are not drawn according to the actual mold closing process position. They are only drawn to facilitate understanding of the relationship between the cylinder hole 14, the rod hole 15 and the guide and limiting components by those skilled in the art. When the mold is fully closed, the upper plate lugs 5 and 8 of the upper mold plate 1 and the lower mold plate 4 are fixedly connected to the upper heating plate and the lower heating plate of the vulcanizing machine equipment by screws, respectively. The middle plate lug 6 of the middle mold plate 2 is fixedly connected to the lifting mold crossbar of the vulcanizing machine equipment by screws. The middle mold plate 2 and the middle mold plate 3 are in contact. When the mold opening begins, during the descent of the vulcanizing machine, the middle mold plate 1 (2), middle mold plate 2 (3), and lower mold plate 4 descend simultaneously and separate from the upper mold plate 1. Middle mold plate 1 (2) stops at a fixed position due to the machine's lifting crossbar, while middle mold plate 2 (3) and lower mold plate 4 continue to descend. At this time, sleeve 9 is fixed at the middle plate lug 1 (6), and pull rod 10 slowly extends from inside sleeve 9. When one end of pull rod 10 slides to the bottom inside sleeve 9, the limiting shim 11 engages at the step 16 of rod hole 15. At this point, pull rod 10 extends to its maximum length and is restrained by the limiting shim 11 at the hole at step 16 of middle plate lug 2 (7). Middle mold plate 2 (3) then opens to the set position and stops, with the distance between middle mold plate 1 (2) and middle mold plate 2 (3) at its maximum. Lower mold plate 4 continues to descend to the set position and stops. At this point, all mold plates are fully opened according to the set mold opening spacing, completing the entire mold opening action. Figure 5 The state is shown. It should be noted that the vulcanizing machine equipment is existing technology, so it will not be described in detail.

[0026] After the worker removes the product, cleans the mold, and places the adhesive material, the equipment receives an instruction and begins its upward movement, i.e., mold closing begins. The equipment drives the lower mold plate 4 to rise, and the lower mold plate 4 rises to the position of the middle mold plate 2 3 to close with it. At this time, the pull rod 10 rests against the lower pad plate of the equipment. The equipment continues to rise, and the middle mold plate 2 3 moves to the position of the middle mold plate 1 2 to close with it. At this time, one end of the pull rod 10 extends into the top of the sleeve 9. The equipment continues to rise to the position of the upper mold plate 1, realizing the complete mold closing action of the entire mold set. Each mold plate is precisely positioned by the cooperation of positioning pins 13 and positioning holes. Each mold plate lug is fixed to the mold plate of each layer by screws, driving each mold plate to rise and fall. This process is repeated to realize the automatic opening and closing of multi-layer mold production.

[0027] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. An automatic opening and closing device for a multi-layer rubber mold, characterized in that, The equipment includes an upper template (1), a middle template one (2), a middle template two (3), and a lower template (4) arranged from top to bottom. The guide and limit components are used to control the maximum distance between the middle template one (2) and the middle template two (3). The upper template (1) and the lower template (4) are respectively installed on the upper heating plate and the lower heating plate of the vulcanizing machine.

2. The automatic opening and closing device for a multi-layer rubber mold according to claim 1, characterized in that, The guide limiting assembly includes a sleeve (9) and a pull rod (10), with one end of the pull rod (10) located inside the sleeve (9) and the other end of the pull rod (10) protruding outside the sleeve (9).

3. The automatic opening and closing device for a multi-layer rubber mold according to claim 2, characterized in that, The middle template 1 (2) and the middle template 2 (3) are respectively symmetrically provided with middle plate ear 1 (6) and middle plate ear 2 (7). Middle plate ear 1 (6) is connected to the lifting formwork crossbar by screws.

4. The automatic opening and closing device for a multi-layer rubber mold according to claim 3, characterized in that, The first ear of the middle plate (6) is provided with a cylindrical hole (14), and the second ear of the middle plate (7) is provided with a rod hole (15). Both the cylindrical hole (14) and the rod hole (15) have a step (16). The sleeve (9) passes through the cylindrical hole (14), and the other end of the pull rod (10) passes through the rod hole (15) and is fitted with a limiting washer (11). The limiting washer (11) is fixed to the pull rod (10) by a fixing bolt (12).

5. An automatic opening and closing device for a multi-layer rubber mold according to claim 1 or 4, characterized in that, The upper template (1) and the lower template (4) are respectively provided with upper plate ears (5) and lower plate ears (8) symmetrically on their sides. The upper plate ears (5) and lower plate ears (8) are respectively fixed to the upper heating plate and the lower heating plate by screws.

6. The automatic opening and closing device for a multi-layer rubber mold according to claim 1, characterized in that, The middle template (2) is connected to the lifting template crossbar of the vulcanizing machine.

7. The automatic opening and closing device for a multi-layer rubber mold according to claim 1, characterized in that, The upper template (1) is provided with positioning posts (13), and the middle template one (2), middle template two (3) and lower template (4) are all provided with positioning holes that cooperate with the positioning posts (13).

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