Rubber blank feeding jig

Abstract

The utility model relates to the technical field of rubber processing, in particular to a rubber blank feeding jig. Comprising a base and a sliding plate, the sliding plate is adjustably installed on the base in a sliding mode, a set of heating elements are embedded in the base, and the heating elements are evenly arranged in the X direction at intervals and extend out of the base in the Y direction. And a group of blanking holes are formed in the base, are uniformly spaced in the X direction and are positioned between two adjacent heating elements. Material distribution holes corresponding to the material falling holes are formed in the sliding plate and are in one-to-one correspondence in an opening state. The whole feeding jig can be preheated through the heating element in the base, preheating is conducted in the rubber blank placing process, the temperature of the rubber blank before the rubber blank enters a mold is increased, the temperature difference between the interior and the exterior of the rubber blank is reduced, the hot-pressing vulcanization forming uniformity, the product quality and the yield of the rubber blank are improved, and the manufacturing cost is reduced. And meanwhile, preheating can shorten the vulcanization time, improve the production efficiency, enable the rubber product to reach the vulcanization temperature more quickly, and reduce the temperature rise time.

Description

Technical Field

[0001] The utility model relates to the technical field of rubber processing, in particular to a rubber blank feeding jig. Background Art

[0002] With the continuous development of industrial technology, rubber products are more and more widely used in various fields. Rubber products are generally manufactured by a hot press vulcanization molding process, which has the advantages of high efficiency and stability. Traditional rubber hot press molding dies usually consist of an upper die and a lower die. The molding die is heated by a heating device, so that the rubber blank undergoes a vulcanization reaction under high temperature and high pressure, and thus is formed into the required rubber product.

[0003] At present, in the process of manufacturing some products, for some thick-walled rubber products or rubber products with complex shapes, if the rubber blank is directly hot press vulcanized and formed, there will be a certain temperature difference between the surface and the inside of the rubber blank, which will cause uneven hot press vulcanization molding of the rubber blank, affect the quality of the rubber product, result in a low yield of the rubber product, and high manufacturing cost; if the hot press vulcanization molding time of this type of rubber product is prolonged during the production process, it will cause over-vulcanization of the rubber product, and the rubber product will be brittle and cracked on the surface, and its service performance will decline. Summary of the Utility Model

[0004] To overcome the deficiencies of the above-mentioned prior art, the utility model provides a rubber blank feeding jig, which solves the technical problems that there is a certain temperature difference between the surface and the inside of the rubber blank, resulting in uneven hot press vulcanization molding of the rubber blank, affecting the quality of the rubber product, resulting in a low yield of the rubber product, and high manufacturing cost.

[0005] To achieve the above object, the utility model is realized by the following technical solutions:

[0006] A rubber blank feeding jig is used to feed a rubber blank into a molding die on a hot press vulcanizer, and includes: a base and a sliding plate. The sliding plate is adjustably and slidably installed on the base. A group of heating elements are buried in the base. The group of heating elements are evenly spaced in the X direction, and the group of heating elements extend out of the base in the Y direction. At least one group of blank dropping holes are provided on the base. The group of blank dropping holes are evenly spaced in the X direction. The blank dropping holes are arranged between a pair of adjacent heating elements. At least one group of cloth holes corresponding to the group of blank dropping holes are provided on the sliding plate. When the rubber blank feeding jig is in an open state, the group of blank dropping holes correspond to the group of cloth holes one by one.

[0007] Based on the above structure, the principle of the rubber blank feeding fixture is as follows: When the rubber blank needs to be fed into the molding die, the feeding fixture is in a closed state, and the blanking hole and the cloth feeding hole are arranged offset in the Y direction. First, a group of heating elements are connected to the power supply to heat the base and drive the slide plate to reach the preset temperature together. Then, the rubber blank is placed into the cloth feeding hole. At this time, due to the offset arrangement of the blanking hole and the cloth feeding hole in the Y direction, the base supports the rubber blank. During the process of the operator arranging the material, the feeding fixture also preheats the rubber blank. When the operator finishes arranging the material and the rubber blank reaches the preset temperature, then the feeding fixture with the rubber blank is placed at the preset position on the molding die. After that, the slide plate is toggled to slide and adjust in the Y direction. When a group of blanking holes correspond to a group of cloth feeding holes, the blanking hole and the cloth feeding hole are axially penetrated, and the rubber blank falls into the molding die. Finally, the feeding fixture is pulled out to complete the feeding of the rubber blank.

[0008] Further, in a rubber blank feeding fixture in the present application, a pair of limiting parts are provided on the base. The pair of limiting parts include: a first limiting part and a second limiting part. The first limiting part and the second limiting part are arranged at intervals on the base in the Y direction, and the slide plate is arranged between the first limiting part and the second limiting part. As a preferred solution of the present application, the first limiting part and the second limiting part in a rubber blank feeding fixture of the present application are used to limit the sliding stroke of the slide plate in the Y direction. When the side surface of the slide plate far from the second limiting part is in contact with the side surface of the first limiting part in the Y direction, a group of blanking holes correspond to a group of cloth feeding holes one by one, and the blanking hole and the cloth feeding hole are axially penetrated; when the side surface of the slide plate far from the first limiting part is in contact with the side surface of the second limiting part in the Y direction, a group of blanking holes and a group of cloth feeding holes are arranged offset in the Y direction.

[0009] Further, in a rubber blank feeding fixture in the present application, a pair of laterally open groove parts are provided on the base. The pair of groove parts are arranged at intervals in the X direction. The lateral openings of the pair of groove parts are arranged oppositely and extend along the groove parts in the Y direction. The two ends of the slide plate in the X direction are respectively slidably and adjustably arranged in the groove parts. As a preferred solution of the present application, the pair of groove parts in a rubber blank feeding fixture of the present application are used to accommodate the two ends of the slide plate in the X direction, so that the slide plate can be slidably adjusted in the Y direction.

[0010] Further, in a rubber blank feeding fixture in the present application, convex parts are respectively extended and provided at both side ends of the slide plate. The convex parts are respectively abutted against the inner walls of the corresponding groove parts in the X direction. As a preferred solution of the present application, the convex parts in a rubber blank feeding fixture of the present application are arranged in the groove parts and move along the extending direction of the groove parts. The inner walls of the groove parts on both sides of the base are respectively abutted against the ends of the corresponding convex parts in the X direction to limit the convex parts in the X direction.

[0011] Furthermore, in a rubber stock delivery jig in the present application, a notch is provided on the slide plate, and the notch is extended on the slide plate along the X direction. As a preferred embodiment of the present application, the notch in the rubber stock delivery jig in the present application is used to move the slide plate, and the slide plate is slidably adjusted on the base to make the blanking hole and the material distribution hole axially connected or misaligned in the Y direction.

[0012] Furthermore, in a rubber stock delivery jig in the present application, the heating element includes: a resistance wire, and the resistance wire is detachably mounted on a base. As a preferred embodiment of the present application, the resistance wire in a rubber stock delivery jig in the present application is used to preheat the delivery jig to a preset temperature after being connected to a power source. When the resistance wire is damaged, the damaged resistance wire can be taken out and replaced from a hole on the side of the base, without having to replace the entire delivery jig, thereby improving the economy of the delivery jig.

[0013] Furthermore, a rubber blank delivery jig in the present application also includes: a group of columns, a group of columns can be detachably mounted on the side of the base away from the skateboard, and the end of the column away from the base is a rounded structure. As a preferred embodiment of the present application, a group of columns in a rubber blank delivery jig in the present application is used to limit the relative position between the base and the forming mold, and the forming mold is provided with positioning holes corresponding to a group of columns one by one, so that the blanking hole is directly opposite to the mold cavity on the forming mold; the end of the column away from the base is a rounded structure, and this design is to facilitate introduction and eliminate stress concentration; a group of columns is connected to the base by threads, and when the columns are worn and damaged, they are easy to replace; when the delivery jig is placed on the operating table to place the rubber blank, the columns are also the support frame of the delivery jig to prevent the operating table from being burned when the rubber blank is placed.

[0014] Furthermore, a rubber stock delivery jig in the present application also includes: a handheld component, the handheld component is mounted on a base, the handheld component includes: a mounting plate, a pair of mounting posts, and a crossbar, the mounting plate is mounted on the base, a pair of mounting posts are spaced apart on the mounting plate in the Y direction, the crossbar is located between the pair of mounting posts, and both ends of the crossbar are respectively connected to one end of the pair of mounting posts away from the mounting plate. As a preferred embodiment of the present application, a handheld component in a rubber stock delivery jig in the present application, an operator moves the delivery jig by holding the crossbar.

[0015] It can be seen from the above technical solution that the utility model has the following beneficial effects:

[0016] A rubber blank feeding fixture in this application preheats the entire feeding fixture through a group of heating elements arranged in the base. During the process of an operator placing the rubber blank into the feeding fixture, the rubber blank is preheated simultaneously to increase the temperature of the rubber blank before it enters the mold, reducing the large temperature difference between the inside and outside of the rubber blank. This improves the uniformity of the hot pressing and vulcanization molding of the rubber blank, enhances the quality of the rubber product, increases the yield rate of the rubber product, and reduces the manufacturing cost. At the same time, preheating the rubber blank can shorten the vulcanization time, thereby improving production efficiency. Because after the preheated rubber product enters the vulcanization equipment, it can reach the vulcanization temperature faster and reduce the heating time. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 FIG. is a three-dimensional structure diagram of a rubber blank feeding fixture in an embodiment of this application;

[0018] Figure 2 FIG. is an exploded view of a rubber blank feeding fixture in an embodiment of this application;

[0019] Figure 3 FIG. is a cross-sectional view of a rubber blank feeding fixture in an embodiment of this application.

[0020] In the figure: 1 - base; 10 - blank dropping hole; 11 - limiting part; 111 - first limiting part; 112 - second limiting part; 12 - groove part; 2 - slide plate; 20 - cloth feeding hole; 21 - convex part; 22 - notch part; 3 - heating element; 31 - resistance wire; 5 - column; 6 - hand-held component; 61 - mounting plate; 62 - mounting column; 63 - cross bar. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] As Figure 1 , 2 , shown in FIG. 3, a rubber blank feeding fixture is used to feed rubber blanks into a molding die on a hot pressing and vulcanizing machine, and includes: a base 1 and a slide plate 2. The slide plate 2 is adjustably and slidably mounted on the base 1. A group of heating elements 3 are buried in the base 1. The group of heating elements 3 are evenly spaced in the X direction and extend out of the base 1 along the Y direction. At least one group of blank dropping holes 10 are provided on the base 1. The group of blank dropping holes 10 are evenly spaced in the X direction. The blank dropping holes 10 are arranged between two adjacent heating elements 3. At least one group of cloth feeding holes 20 corresponding to the group of blank dropping holes 10 are provided on the slide plate 2. When the rubber blank feeding fixture is in an open state, the group of blank dropping holes 10 correspond to the group of cloth feeding holes 20 one by one.

[0022] Based on the above structure, the principle of the rubber blank feeding fixture is as follows: When the rubber blank needs to be fed into the molding die, the feeding fixture is in a closed state, and the blanking hole 10 and the cloth hole 20 are arranged in a staggered manner in the Y direction. First, a group of heating elements 3 are connected to the power supply to heat the base 1 to drive the slide plate 2 to reach the preset temperature together. Then, the rubber blank is placed into the cloth hole 20. At this time, due to the staggered arrangement of the blanking hole 10 and the cloth hole 20 in the Y direction, the base 1 supports the rubber blank. During the process of the operator arranging the material, the feeding fixture also preheats the rubber blank. When the operator finishes arranging the material and the rubber blank reaches the preset temperature, then the feeding fixture with the rubber blank is placed at the preset position on the molding die. After that, the slide plate 2 is toggled to slide and adjust it in the Y direction. When a group of blanking holes 10 correspond to a group of cloth holes 20, the blanking hole 10 and the cloth hole 20 are axially penetrated, and the rubber blank falls into the molding die. Finally, the feeding fixture is pulled out to complete the feeding of the rubber blank. The base 1 is provided with two groups of blanking holes 10, and the number of each group of blanking holes 10 is 4. Correspondingly, there are also two groups of cloth holes 20, and each group of cloth holes 20 includes 4 cloth holes 20.

[0023] In this embodiment, a pair of limiting parts 11 are provided on the base 1. The pair of limiting parts 11 include: a first limiting part 111 and a second limiting part 112. The first limiting part 111 and the second limiting part 112 are arranged at intervals on the base 1 in the Y direction, and the slide plate 2 is arranged between the first limiting part 111 and the second limiting part 112. The first limiting part 111 and the second limiting part 112 are used to limit the sliding stroke of the slide plate 2 in the Y direction. When the side surface of the slide plate 2 away from the second limiting part 112 is in contact with the side surface of the first limiting part 111 in the Y direction, a group of blanking holes 10 correspond to a group of cloth holes 20 one by one, and the blanking hole 10 and the cloth hole 20 are axially penetrated; when the side surface of the slide plate 2 away from the first limiting part 111 is in contact with the side surface of the second limiting part 112 in the Y direction, a group of blanking holes 10 and a group of cloth holes 20 are arranged in a staggered manner in the Y direction.

[0024] In this embodiment, a pair of laterally open groove parts 12 are provided on the base 1. The pair of groove parts 12 are arranged at intervals in the X direction. The lateral openings of the pair of groove parts 12 are arranged oppositely and extend along the groove parts 12 in the Y direction. The two ends of the slide plate 2 in the X direction are respectively slidably and adjustably arranged in the groove parts 12. The pair of groove parts 12 are used to accommodate the two ends of the slide plate 2 in the X direction, so that the slide plate 2 can be slidably adjusted in the Y direction.

[0025] In this embodiment, convex parts 21 are respectively extended from both side ends of the slide plate 2, and the convex parts 21 are respectively abutted against the inner walls of the corresponding groove parts 12 in the X direction. The convex parts 21 are arranged in the groove parts 12, and move along the extension direction of the groove parts 12. The inner walls of the groove parts 12 on both sides of the base 1 are respectively abutted against the ends of the corresponding convex parts 21 in the X direction, so as to limit the convex parts 21 in the X direction. Two convex parts 21 are respectively extended from both side ends of the slide plate 2.

[0026] In this embodiment, the slide plate 2 is provided with a notch 22, and the notch 22 is extended along the X direction on the slide plate 2. The notch 2 is used to move the slide plate 2, and the slide plate 2 is slidably adjusted on the base 1, so that the blanking hole 10 and the material distribution hole 20 are axially connected or misaligned in the Y direction.

[0027] In this embodiment, the heating element 3 includes: a resistance wire 31, which is detachably mounted on the base 1. After the resistance wire 31 is connected to the power supply, it is used to preheat the delivery fixture to a preset temperature. When the resistance wire 31 is damaged, the damaged resistance wire 31 can be taken out and replaced through the hole (not shown) on the side of the base 1, so as not to replace the entire delivery fixture, thereby improving the economic efficiency of the delivery fixture. The resistance wire adopts an iron-chromium-aluminum alloy heating wire.

[0028] In this embodiment, it also includes: a group of columns 5, a group of columns 5 can be detachably mounted on the side of the base 1 away from the skateboard 2, and the end of the column 5 away from the base 1 is a rounded structure. A group of columns 5 is used to limit the relative position between the base 1 and the forming mold. The forming mold is provided with positioning holes (not shown) corresponding to a group of columns 5, so that the blanking hole 10 is directly opposite to the mold cavity (not shown) on the forming mold; the end of the column 5 away from the base 1 is a rounded structure, and this design is to facilitate introduction and eliminate stress concentration; a group of columns 5 is threadedly connected to the base 1, and when the column 5 is worn and damaged, it is easy to replace it; when the delivery jig is placed on the operating table to place the rubber blank, the column 5 is also a support frame for the delivery jig to prevent it from scalding the operating table when placing the rubber blank. The number of a group of columns 5 is 4.

[0029] In this embodiment, it also includes: a handheld component 6, which is installed on the base 1. The handheld component 6 includes: a mounting plate 61, a pair of mounting columns 62, and a cross bar 63. The mounting plate 61 is installed on the base 1, and the pair of mounting columns 62 are installed on the mounting plate 61 at intervals in the Y direction. The cross bar 63 is located between the pair of mounting columns 62, and the two ends of the cross bar 63 are respectively connected to the end of the pair of mounting columns 62 away from the mounting plate 61. The operator moves the delivery fixture by holding the cross bar 63. The number of handheld components 6 is 2, which are installed on the base 1 at intervals in the X direction.

[0030] The technical principle of the present utility model has been described in conjunction with specific embodiments above. These descriptions are only for explaining the principle of the present utility model and cannot be construed in any way as a limitation on the protection scope of the present utility model. Based on the explanations herein, those skilled in the art can readily conceive of other specific embodiments of the present utility model without creative efforts, and these embodiments will fall within the protection scope of the present utility model.

Claims

1. A rubber blank feeding fixture for feeding a rubber blank into a forming die on a hot press vulcanizing machine, characterized in that: Comprising: A base (1) and a slide plate (2), the slide plate (2) is adjustably and slidably mounted on the base (1), a group of heating elements (3) are embedded in the base (1), the group of heating elements (3) are evenly spaced in the X direction, the group of heating elements (3) extend out of the base (1) along the Y direction, at least one group of blanking holes (10) are provided on the base (1), the group of blanking holes (10) are evenly spaced in the X direction, the blanking holes (10) are arranged between a pair of adjacent heating elements (3), at least one group of cloth holes (20) corresponding to the group of blanking holes (10) are provided on the slide plate (2), when the rubber blank feeding jig is in the open state, the group of blanking holes (10) correspond to the group of cloth holes (20) one by one.

2. The rubber blank feeding fixture according to claim 1, wherein: A pair of limiting parts (11) are provided on the base (1), the pair of limiting parts (11) include: a first limiting part (111) and a second limiting part (112), the first limiting part (111) and the second limiting part (112) are spaced in the Y direction on the base (1), and the slide plate (2) is arranged between the first limiting part (111) and the second limiting part (112).

3. The rubber blank feeding jig according to claim 1, characterized in that: A pair of laterally open groove parts (12) are provided on the base (1), the pair of groove parts (12) are spaced in the X direction, the lateral openings of the pair of groove parts (12) are arranged oppositely and extend along the groove parts (12) in the Y direction, and the two ends of the slide plate (2) in the X direction are respectively slidably and adjustably arranged in the groove parts (12).

4. A rubber blank feeding jig according to claim 3, characterized in that: Convex parts (21) are respectively extended and provided at both side ends of the slide plate (2), and the convex parts (21) are respectively abutted against the inner walls of the corresponding groove parts (12) in the X direction.

5. A rubber blank feeding jig according to claim 1, wherein: A notch (22) is provided on the slide plate (2), and the notch (22) extends along the X direction on the slide plate (2).

6. The rubber blank feeding jig according to claim 1, characterized in that: The heating element (3) includes: a resistance wire (31), and the resistance wire (31) is detachably mounted on the base (1).

7. A rubber blank feeding fixture according to claim 1, characterized in that: Also comprising: A group of columns (5), the group of columns (5) are detachably mounted on the side of the base (1) away from the slide plate (2), and the end of the column (5) away from the base (1) is of a rounded corner structure.

8. A rubber blank feeding jig according to claim 1, characterized in that: Also comprising: A hand-held assembly (6), the hand-held assembly (6) is mounted on the base (1), the hand-held assembly (6) includes: a mounting plate (61), a pair of mounting columns (62), and a cross bar (63), the mounting plate (61) is mounted on the base (1), the pair of mounting columns (62) are spaced in the Y direction and mounted on the mounting plate (61), the cross bar (63) is located between the pair of mounting columns (62), and both ends of the cross bar (63) are respectively connected to the ends of the pair of mounting columns (62) away from the mounting plate (61).

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