Replaceable silica gel part forming mold

Abstract

The utility model discloses a replaceable silica gel part forming mold which comprises a leather pressing plate (1) and a lower mold (2) which are arranged in an up-and-down matched mode, the upper surface of the lower mold (2) is provided with a silica gel injection mold cavity (4) which is sunken inwards, the lower surface of the lower mold (2) is also provided with a vacuumizing cavity (5) which is sunken inwards, and a vacuum cavity (6) which is sunken inwards is arranged between the silica gel injection mold cavity (4) and the vacuumizing cavity (5). A plurality of through holes (6) are formed in the lower die (2), a lower die plate (7) is further detachably arranged below the lower die (2), and a vacuumizing hole (14) communicated with the vacuumizing cavity (5) is further formed in the lower die (2). The die disclosed by the utility model is simple in structure and convenient to use; the lower die of the die can be replaced according to different requirements; the shape of the silica gel required to be obtained in the production is controllable, and the customization requirement of a customer can be met; the silica gel injection amount is smaller than that of a traditional process.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of saddle production, especially a replaceable silica gel partial forming die. BACKGROUND

[0002] The traditional die for producing silica gel (GEL) cushion does not partition silica gel and foaming component well, so when adopting the traditional silica gel cushion process for production, silica gel is directly injected into the die cavity at the arrow position, at this time the die cavity is placed horizontally, then foaming raw material is injected. The finished product cushion with silica gel is output. The disadvantage of this method is that liquid silica gel naturally flows in the die cavity. The shape of silica gel forming is not controlled, some irregular shapes appear, and when doing so, the silica gel injection amount is large, the cost is wasted. But in fact, the actual area of silica gel for reducing cycling fatigue is usually the position where the left and right sides of the rear end of the saddle contact the hip petals. Therefore, people hope to find a method to solve the problems of large silica gel raw material consumption, high cost, shape uncontrollable and relatively heavy product weight in the existing process. SUMMARY

[0003] In order to overcome the above-mentioned problems of the prior art, the utility model provides a replaceable silica gel partial forming die.

[0004] The utility model solves the technical problems thereof by adopting the technical scheme of:

[0005] The replaceable silica gel partial forming die comprises a pressing plate 1 and a lower die 2 arranged in an upper and lower cooperation mode, at least a gap with a thickness corresponding to that of a saddle skin 3 is left in the middle between the lower die 2 and the pressing plate 1, so that the saddle skin 3 can be placed therebetween, an inwardly recessed silica gel injection molding cavity 4 is arranged on the upper surface of the lower die 2, an inwardly recessed vacuumizing cavity 5 is also arranged on the lower surface of the lower die 2, a plurality of through holes 6 for connecting the silica gel injection molding cavity 4 and the vacuumizing cavity 5 are arranged between the silica gel injection molding cavity 4 and the vacuumizing cavity 5, an opening hole 13 for fully exposing the silica gel injection molding cavity 4 on the lower die 2 is also arranged on the pressing plate 1, a lower die plate 7 in sealing arrangement with the vacuumizing cavity 5 on the lower die 2 is detachably arranged below the lower die 2, a vacuumizing hole 14 in communication with the vacuumizing cavity 5 is also arranged on the lower die 2, the outer side of the vacuumizing hole 14 is in communication with a vacuum pump, so as to realize vacuumizing of the vacuumizing cavity 5, and then the saddle skin 3 above the silica gel injection molding cavity 4 can be sucked to the bottom of the silica gel injection molding cavity 4 by vacuum negative pressure, thereby the silica gel can be pre-injected on the saddle skin 3 according to the shape of the silica gel injection molding cavity 4; a plurality of positioning grooves 17 are arranged on the edge of the upper surface of the lower die 2, and a plurality of positioning blocks 18 in cooperation with the positioning grooves 17 are arranged on the pressing plate 1.

[0006] As a preferred, the cavity of the injection molding of the silica gel comprises two parts corresponding to the shape of the hip on the left and right sides of the saddle.

[0007] As a preferred, a sealing ring 8 is arranged between the lower mold 2 and the lower mold plate 7 to seal the cavity formed between the vacuum cavity 5 of the lower mold 2 and the upper surface of the lower mold plate 7.

[0008] As a preferred, a plurality of pin holes for inserting the pins 9 are arranged on the upper surface of the lower mold 2 at different positions in front and back directions, so that the saddle skin 3 can be fixed by inserting the pins 9 according to the size of the saddle skin 3. The corresponding long grooves 15 are arranged on the pressing plate 1 to allow the top of the pins 9 to be inserted into the long grooves 15. By selecting the positions of the pins 9, the front and back positions of the fixed saddle skin can be adjusted to adapt to different sizes of the saddle skin or different shapes of the saddle skin.

[0009] As a preferred, the pressing plate 1 is further connected with a mold lifting plate 10 for conveniently lifting the pressing plate 1. More preferably, the mold lifting plate 10 is fixed to the pressing plate 1 by screws.

[0010] As a preferred, the lower mold 2 is fixed to the lower mold plate 7 by a locking member 16 to realize detachable connection. More preferably, the lower mold 2 and the lower mold plate 7 are both provided with bolt mounting holes.

[0011] As a preferred, the lower mold 2 and the pressing plate 1 are connected by a hinge 11 to realize opening and closing of the lower mold 2 and the pressing plate 1. On the side opposite to the side where the hinge 11 is arranged, a set of lock structures are arranged between the lower mold 2 and the pressing plate 1 to lock or release the lower mold 2 and the pressing plate 1 according to the requirement. On the side adjacent to the side where the hinge 11 is arranged, a cylinder 12 is fixed to the lower mold 2. The movable end of the cylinder 12 is connected with a pin shaft on the side surface of the pressing plate 1, so that the pressing plate 1 can be lifted or lowered by the extension and retraction of the cylinder 12.

[0012] The utility model has the advantages of:

[0013] The replaceable silica gel part forming die has the advantages of ingenious structure, and the silica gel injection special mold is newly designed, silica gel can be injected only at the position required by the saddle (obtained through design calculation), so that the required saddle cushion with silica gel can be obtained only through simple process, specifically, the saddle skin is first adsorbed in the mold, silica gel is injected at the required position in the silica gel injection mold cavity, a saddle skin with silica gel is obtained, the saddle skin with silica gel is then adsorbed to the traditional cushion mold, and foaming raw materials are injected, so that the actual required saddle cushion with silica gel can be obtained, the silica gel injection amount can be effectively controlled, the cost and product weight can be controlled to the maximum, the saddle skin with silica gel produced by the silica gel mold can be shared by various types and models, the mold is designed in a modular manner, the lower mold of the mold only needs to be replaced according to the requirement of different silica gel shapes, other components can be commonly used, the mold has high commonality, and in particular has the following advantages:

[0014] 1. The mold structure is simple, convenient to use, and low in equipment cost;

[0015] 2. The lower mold of the mold can be replaced according to different requirements, and is suitable for various application scenarios;

[0016] 3. The silica gel shape obtained in production can be controlled, and customer customization requirements can be realized;

[0017] 4. The silica gel injection amount is relatively less than that in the traditional process, and the cost and resource waste can be effectively reduced. BRIEF DESCRIPTION OF DRAWINGS

[0018] The utility model is further illustrated below in combination with the drawings and embodiments, in which:

[0019] Figure 1 It is a three-dimensional structure schematic view of the mold embodiment of the utility model;

[0020] Figure 2 It is a disassembled structure schematic view of Figure 1 .

[0021] Figure 3 It is another angle three-dimensional structure schematic view of the mold embodiment of the utility model;

[0022] Figure 4 It is a three-dimensional structure schematic view when the saddle skin is laid on the lower mold;

[0023] Figure 5 It is a saddle skin in Figure 4 when the saddle skin is a perspective structure;

[0024] Figure 6 It is a three-dimensional structure schematic view of the structure on the lower surface of the lower mold. DETAILED DESCRIPTION

[0025] All features disclosed in this specification, or all steps in the disclosed methods or processes, except mutually exclusive features and / or steps, can be combined in any manner.

[0026] Any feature disclosed in this specification (including any appended claims, abstract, and drawings), unless otherwise stated, may be replaced by other equivalent or similar features. In other words, unless otherwise stated, each feature is only an example of a series of equivalent or similar features.

[0027] like Figures 1-6 As shown, the replaceable silicone partial molding mold includes a leather pressing plate 1 and a lower mold 2 that are arranged in an upper and lower manner. Between the lower mold 2 and the leather pressing plate 1, there is a gap with a thickness equivalent to the saddle leather surface 3 at least in the middle, so that the saddle leather surface 3 can be placed therebetween. An inwardly concave silicone injection mold cavity 4 is provided on the upper surface of the lower mold 2, and an inwardly concave vacuum cavity 5 is also provided on the lower surface of the lower mold 2. A number of through holes 6 that connect the silicone injection mold cavity 4 and the vacuum cavity 5 are provided between the silicone injection mold cavity 4 and the vacuum cavity 5. The leather pressing plate 1 is also provided with an opening 13 that can fully expose the silicone injection mold cavity 4 on the lower mold, and there is also a hole 13 below the lower mold 2. A lower template 7 is detachably provided, which is sealed with the vacuum chamber 5 on the lower mold 2. The lower mold 2 is also provided with a vacuum hole 14 connected to the vacuum chamber 5. The outer side of the vacuum hole 14 is connected to a vacuum pump to realize vacuuming of the vacuum chamber 5, so that the saddle leather surface 3 above the silicone injection mold cavity 4 can be sucked to the bottom of the silicone injection mold cavity 4 by the vacuum negative pressure, thereby pre-injecting silicone on the saddle leather surface 3 according to the shape of the silicone injection mold cavity 4; the lower mold 2 is also provided with a plurality of positioning grooves 17 on the edge of the upper surface, and the leather pressing plate 1 is provided with a plurality of positioning blocks 18 that can cooperate with the positioning grooves 17.

[0028] The silicone injection mold cavity 4 includes two parts corresponding to the left and right sides of the saddle and the shape of the buttocks.

[0029] A sealing ring 8 is provided between the lower mold 2 and the lower template 7 and on the lower mold 2 to seal the cavity formed between the vacuum cavity 5 on the lower mold and the upper surface of the lower template 7 .

[0030] The upper surface of the lower mold 2 is provided with a plurality of pin holes for inserting pins 9 at different front and rear positions on at least the front and rear sides. The pins 9 are inserted to fix the saddle leather 3 according to the size of the saddle leather 3. The leather pressing plate 1 is provided with long slots 15 corresponding to the positions of the pin holes, which are provided to receive the tops of the pins 9 inserted into the pin holes. By selecting the position of the pin 9, the front and rear adjustment of the fixed position of the saddle leather can be achieved to accommodate saddle leathers of different sizes or shapes.

[0031] The pressing plate 1 is also connected with a stripper plate 10 for conveniently lifting the pressing plate 1, and more preferably, the stripper plate 10 is fixed on the pressing plate 1 by screws.

[0032] The lower die 2 is fixed on the lower die plate 7 by locking members 16 to achieve detachability, and more preferably, bolt mounting holes are arranged on the lower die 2 and the lower die plate 7.

[0033] The lower die 2 and the pressing plate 1 are connected by a hinge 11 on one side to achieve opening and closing between the lower die 2 and the pressing plate 1, and on the opposite side of the hinge 11, a set of lock catch structures are arranged between the lower die 2 and the pressing plate 1 to lock or release the lower die 2 and the pressing plate 1 as needed, and on the side beside the hinge 11, a cylinder 12 is fixed on the lower die 2, and the movable end of the cylinder 12 is connected with a pin shaft on the side of the pressing plate 1, so that the pressing plate 1 can be lifted or lowered by the extension and retraction of the cylinder 12.

[0034] The production method of the saddle skin surface with silica gel by using the above mold comprises the following steps:

[0035] 1) The pressing plate is lifted, the saddle skin surface is laid on the upper surface of the lower die, and the two sides of the saddle skin surface are fixed on the upper surface of the lower die by inserting the pins into the pin holes, when laying, the back of the saddle skin surface is ensured to face upward, then the pressing plate is lowered, so that the saddle skin surface is pressed between the pressing plate and the lower die, at this time, the positioning groove on the lower die is matched with the positioning block on the pressing plate, then the pressing plate and the lower die are fixed together by the lock catch structure;

[0036] 2) The vacuum pump connected with the vacuum cavity is opened, and the saddle skin surface located above the silica gel injection mold cavity is tightly adsorbed to the mold cavity wall of the silica gel injection mold cavity on the upper surface of the lower die due to the action of negative pressure;

[0037] 3) The silica gel is injected on the saddle skin surface adsorbed to the mold cavity wall of the silica gel injection mold cavity according to the needs, thereby obtaining a saddle skin surface with silica gel, and then the saddle skin surface with silica gel is adsorbed to the traditional cushion mold, and the foaming raw material is injected, thereby obtaining the actual desired saddle cushion with silica gel.

[0038] The replaceable silica gel part forming die has the advantages that the silica gel injection special die is newly designed, silica gel can be injected only at the position required by the saddle (obtained through design calculation), only the saddle cushion with silica gel required can be obtained through simple process, specifically, the saddle skin is first adsorbed in the die, silica gel is injected at the position required in the silica gel injection mold cavity, the saddle skin with silica gel is obtained, the saddle skin with silica gel is adsorbed to the traditional cushion die, foaming raw materials are injected, the saddle cushion with silica gel required can be obtained, the silica gel injection amount can be effectively controlled, the cost and the product weight can be controlled to the maximum, the saddle skin with silica gel produced by the silica gel die can be shared by various types and models of products, the die is modularly designed, the lower die of the die needs to be replaced only according to the requirement of different silica gel shapes, other components can be commonly used, the die has high commonality, and in particular has the following advantages.

[0039] 1. The die has simple structure, is convenient to use and has low equipment cost.

[0040] 2. The lower die of the die can be replaced according to different requirements and is suitable for various application scenarios.

[0041] 3. The silica gel shape required in production can be controlled, and customer customization requirement can be realized.

[0042] 4. The silica gel injection amount is relatively less than that of the traditional process, and the cost can be effectively reduced and resource waste can be reduced.

[0043] The utility model is not limited to the preceding specific embodiments. The utility model extends to any new feature disclosed in this specification or any new combination, and any new method or process step or any new combination disclosed.

Claims

1. A replaceable silicone partial forming mold characterized by, The application relates to a saddle skin pressing device, which comprises a pressing plate (1) and a lower mold (2) arranged in a top-down matching mode, a gap with a thickness corresponding to that of a saddle skin (3) is left between the lower mold (2) and the pressing plate (1) at least in the middle part, so that the saddle skin (3) can be placed therebetween, an inwardly recessed silica gel injection mold cavity (4) is arranged on the upper surface of the lower mold (2), an inwardly recessed vacuumizing cavity (5) is also arranged on the lower surface of the lower mold (2), a plurality of through holes (6) for connecting the silica gel injection mold cavity (4) and the vacuumizing cavity (5) are arranged between the silica gel injection mold cavity (4) and the vacuumizing cavity (5), an opening (13) capable of fully exposing the silica gel injection mold cavity (4) on the lower mold is formed in the pressing plate (1), a lower mold plate (7) capable of being detachably arranged below the lower mold (2) and being in sealing connection with the vacuumizing cavity (5) on the lower mold (2) is arranged below the lower mold (2), a vacuumizing hole (14) in communication with the vacuumizing cavity (5) is arranged on the lower mold (2), the outer side of the vacuumizing hole (14) is in communication with a vacuum pump, so that the vacuumizing cavity (5) can be vacuumized, a plurality of positioning grooves (17) are arranged on the edge of the upper surface of the lower mold (2), and a plurality of positioning blocks (18) capable of being matched with the positioning grooves (17) are arranged on the pressing plate (1).

2. The replaceable silicone partial mold of claim 1, wherein, The silica gel injection mold cavity (4) comprises two parts corresponding to the shapes of the left and right sides of the saddle and the hip.

3. The replaceable silicone partial mold of claim 1, wherein, A sealing ring (8) capable of sealing the cavity formed between the vacuumizing cavity (5) on the lower mold and the upper surface of the lower mold plate (7) is arranged on the lower mold (2) and the lower mold plate (7).

4. The replaceable silicone partial mold of claim 1, wherein, A plurality of pin holes capable of inserting pins (9) and being different in front and back positions are arranged on at least the front and back sides of the upper surface of the lower mold (2), so that the saddle skin (3) can be fixed by inserting the pins (9) according to the size of the saddle skin (3), and a long groove (15) capable of allowing the top of the pin (9) inserted into the pin hole to be inserted is arranged on the pressing plate (1) corresponding to the position of the pin hole.

5. The replaceable silicone partial mold of claim 1, wherein, A mold lifting plate (10) for conveniently lifting the pressing plate (1) is further connected to the pressing plate (1).

6. The replaceable silicone partial mold of claim 1, wherein, The lower mold (2) is fixed on the lower mold plate (7) through locking members (16), so that the lower mold (2) can be detachably arranged on the lower mold plate (7).

7. The replaceable silicone partial mold of claim 1, wherein, The lower mold (2) and the pressing plate (1) are connected on one side through a hinge (11), so that the lower mold (2) and the pressing plate (1) can be opened and closed, a set of lock buckle structures are further arranged between the lower mold (2) and the pressing plate (1) on the opposite side of the side where the hinge (11) is arranged, so that the lower mold (2) and the pressing plate (1) can be locked together or loosened according to requirements, a pneumatic cylinder (12) is further fixedly arranged on the lower mold (2) on the side beside the side where the hinge (11) is arranged, and the movable end of the pneumatic cylinder (12) is connected with a pin shaft on the side surface of the pressing plate (1), so that the pressing plate (1) can be lifted or lowered through the extension and retraction of the pneumatic cylinder (12).

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