CN215359587U - Side-feeding type silica gel auxiliary feeding mechanism - Google Patents

Abstract

The utility model provides a side-feeding type silica gel auxiliary feeding mechanism which comprises a storage barrel, wherein the storage barrel is arranged on one side of an external injection molding machine and is hermetically connected with a feeding port; a material pushing part is arranged in the material storage cavity in a sliding mode, and an exhaust valve communicated with the material storage cavity is arranged on one side, close to the feeding port, of the material storage barrel; during the pay-off, through the input mouth to the storage cavity intussuseption is filled with solid silica gel, it will to push away the material piece slip solid silica gel is pushed the pan feeding mouth, gas in the solid silica gel is followed discharge in the discharge valve. Because of the special properties of the solid silica gel material, the totally enclosed auxiliary feeding mechanism for the first-in first-out silica gel injection molding machine is designed, the mechanism can avoid bubbles and deformation in silica gel products, can improve the qualification rate of silica gel finished products, and reduces the production cost.

Description

Side-feeding type silica gel auxiliary feeding mechanism

Technical Field

The utility model relates to the field of silica gel injection molding machines, in particular to a side-feeding type silica gel auxiliary feeding mechanism.

Background

Silica gel products are being used in a wide variety of fields, and the silicone rubber industry has achieved remarkable success in recent years. The silica gel product is a substitute of the similar plastic products without depending on increasingly scarce petroleum resources, and meanwhile, the silica gel product can be applied to the application fields which can not be realized by a plurality of plastic products. In a traditional rubber product, before molding, rubber is cut into rectangular strips, and the strips enter a feeding screw of an injection molding machine through a feeding mechanism. For convenience, the mechanism is directly applied to the injection molding of the silica gel in the industry, but because the raw material bubbles in the silica gel product are more, the screw rod of the traditional first-in first-out injection machine special for rubber has no exhaust function, the hardness of the silica gel is softer, and the silica gel cannot directly enter an injection system by adopting a rubber feeding mode, so that certain difficulty is caused in use.

Silica gel is a highly active adsorbent material and is an amorphous material, and if bubbles are generated in the silica gel product, the service life and quality of the silica gel are affected. And the hardness of the silica gel is low, direct feeding with a rubber feeding mode cannot be adopted, the material can be broken at the position where the silica gel passes through a screw rod, and continuous feeding cannot be realized, so that the feeding mode of the traditional rubber injection product cannot be adopted. How to design a mechanism which can make the solid silica gel smoothly push into an injection system and can exhaust the air of the mechanism before entering the injection system is a difficult problem to be solved.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model aims to solve the problem of providing a side-feeding type silica gel auxiliary feeding mechanism to overcome the defect that the existing silica gel is easy to have air to influence the forming quality.

(II) technical scheme

In order to solve the technical problem, the utility model provides a side-feeding type silica gel auxiliary feeding mechanism which comprises a storage barrel, wherein the storage barrel is arranged on one side of an external injection molding machine and is hermetically connected with a feeding port; a material pushing part is arranged in the material storage cavity in a sliding mode, and an exhaust valve communicated with the material storage cavity is arranged on one side, close to the feeding port, of the material storage barrel; during the pay-off, through the input mouth to the storage cavity intussuseption is filled with solid silica gel, it will to push away the material piece slip solid silica gel is pushed the pan feeding mouth, gas in the solid silica gel is followed discharge in the discharge valve. Because of the special properties of the solid silica gel material, the totally enclosed auxiliary feeding mechanism for the first-in first-out silica gel injection molding machine is designed, the mechanism can avoid bubbles and deformation in silica gel products, can improve the qualification rate of silica gel finished products, and reduces the production cost.

Further, the one end fixedly connected with material mouth connecting block of storage vat, the material mouth connecting block pass through seal gasket with pan feeding mouth sealing connection. The storage vat with install material mouth guide block between the material mouth connecting block, be provided with tubaeform guide opening in the material mouth guide block.

Furthermore, the input port is arranged at one end of the storage barrel, which is far away from the feeding port. Articulated on the storage vat have be used for the lid to close the emergency exit of input, inductive switch is installed to one side of emergency exit, inductive switch is used for guaranteeing the emergency exit lid is fashionable the pushing ram just can slide.

Further, a feeding oil cylinder is fixed at one end of the storage barrel and connected with the pushing piece; the pushing piece comprises an extrusion ring, a guide ring and a pressing plate which are fixedly connected in sequence.

Furthermore, a fixing frame is arranged on one side of the lower portion of the injection molding machine, a counterweight oil cylinder is fixed on the fixing frame, and the counterweight oil cylinder is connected with the storage barrel. An injection feeding seat is arranged at the upper part of the injection molding machine, and a counterweight group is arranged on one side of the injection feeding seat corresponding to the material storage barrel.

(III) advantageous effects

According to the side-feeding type silica gel auxiliary feeding mechanism provided by the utility model, the storage barrel, the pushing piece and the exhaust valve are matched, solid silica gel is filled into the storage cavity through the feeding port during feeding, the pushing piece slides to push the solid silica gel to the feeding port, and gas in the solid silica gel is extruded out and discharged from the exhaust valve, so that bubbles and deformation generated in silica gel products can be avoided, the qualified rate of silica gel finished products can be improved, the production cost is reduced, and the defect that the forming quality is easily influenced by air in the existing silica gel is overcome.

Drawings

FIG. 1 is a perspective view of a side-entry silica gel auxiliary feeding mechanism of the present invention;

FIG. 2 is a schematic structural view of a side-feeding silica gel auxiliary feeding mechanism of the present invention;

FIG. 3 is an enlarged view of portion A of FIG. 2;

FIG. 4 is an enlarged view of portion B of FIG. 2;

the corresponding part names for the various reference numbers in the figures are: 1. a storage barrel; 2. a material storage cavity; 3. a throwing port; 4. pushing the material piece; 5. an exhaust valve; 6. a material port connecting block; 7. sealing gaskets; 8. a material port guide block; 9. a material guide port; 10. a safety door; 11. a feeding oil cylinder; 12. a fixed mount; 13. a counterweight oil cylinder; 14. injecting the injection seat; 15. a set of weight stacks; 16. feeding a screw rod; 17. a screw head; 18. and (5) injecting the material storage barrel.

Detailed Description

The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the utility model but are not intended to limit the scope of the utility model.

Referring to fig. 1 to 4, the present invention provides a side-feeding type silica gel auxiliary feeding mechanism, which includes a storage barrel 1 installed at one side of an external injection molding machine and hermetically connected to a feeding port of an injection mechanism of the injection molding machine, wherein a storage cavity 2 is disposed inside the storage barrel 1, the storage cavity 2 is used for storing and fixing silica gel, and the volume of the storage cavity 2 determines the maximum silica gel capacity which can be loaded at one time, and the maximum volume can be used for multiple injections. The upper side of the storage barrel 1 is provided with a feeding port 3 communicated with the storage cavity 2, a material pushing part 4 is arranged in the storage cavity 2 in a sliding manner, and one side of the storage barrel 1 close to the feeding port is provided with an exhaust valve 5 communicated with the storage cavity 2; during feeding, the material storage cavity 2 is filled with solid silica gel through the input port 3, the pushing piece 4 slides to push the solid silica gel to the material inlet, and gas in the solid silica gel is discharged from the exhaust valve 5.

Referring to fig. 1 and 3, one end of the storage barrel 1 is fixedly connected with a material port connecting block 6, and the material port connecting block 6 is hermetically connected with the material inlet through a sealing gasket 7. Set up seal gasket 7, guarantee the gas tightness that pan feeding mouth and storage vat 1 are connected, avoid the air to enter into silica gel in, influence product quality. A material port guide block 8 is arranged between the material storage barrel 1 and the material port connecting block 6, and a horn-shaped material guide port 9 is arranged in the material port guide block 8; the material port guide block 8 is used for enabling the solid silica gel to flow along the design direction of the material guide port 9 and enter a material feeding screw of the ejection mechanism.

Referring to fig. 1, the input port 3 is disposed at an end of the storage bin 1 away from the input port. Articulated on the storage vat 1 have be used for the lid to close the emergency exit 10 of input 3, and inductive switch is installed to one side of emergency exit 10, and inductive switch pushes away material 4 and just can slide when being used for guaranteeing emergency exit 10 lid to close, has ensured the safety guarantee of operator at the operation in-process.

Referring to fig. 1 and 3, a feeding cylinder 11 is fixed at one end of the storage vat 1, the feeding cylinder 11 is connected with a pushing element 4, and the pushing element 4 comprises an extrusion ring, a guide ring, a pressing plate and the like which are fixedly connected in sequence. When feeding, the feeding oil cylinder 11 drives the material pushing piece 4 to push materials.

Referring to fig. 2, a fixing frame 12 is disposed at one side of the lower portion of the injection molding machine, a counterweight cylinder 13 is fixed on the fixing frame 12, and the counterweight cylinder 13 is connected with the storage bucket 1. An injection and injection seat 14 is arranged at the upper part of the injection molding machine, and a counterweight group 15 is arranged at one side of the injection and injection seat 14 corresponding to the storage vat 1. When the height of an injection mechanism of the injection molding machine is changed along with the height of the body, the gravity center of the body of the injection mechanism is seriously deviated due to the additional installation of the mechanism, the original structure of the injection seat is abraded, and the injection nozzle and the injection port are not in the same center, so that the material leakage phenomenon is caused. By arranging the counterweight oil cylinder 13 and the counterweight group 15, the injection molding machine can be in a stable state during operation.

Referring to fig. 2 and 4, a feeding screw 16 is rotatably disposed at the lower portion of the injection molding machine, the feeding screw 16 is connected to a screw head 17, and an injection storage bin 18 is disposed at the outer side of the feeding screw 16. During feeding, solid silica gel enters the feeding screw 16 from the feeding port, certain pressure is generated in the stage of entering the feeding screw 16, air cannot be generated, the generated air can be discharged by the exhaust valve 5, after the air is discharged, the air is stored in the ejection storage barrel 18 through the screw head 17, and the volume of the ejection storage barrel 18 determines the volume of maximum injection. In order to increase the effect of air discharge, the inclination angle of the feeding screw rod is changed, the feeding compression ratio is increased, the air in the silica gel is further compressed by the feeding screw rod and discharged, and the product forming quality is ensured.

The utility model provides a pair of feeding mechanism is assisted to side formula silica gel that advances, through the storage vat, push away material spare and discharge valve cooperation, pack solid silica gel to the storage cavity through the input during pay-off, it slides and pushes solid silica gel to the pan feeding mouth to push away the material spare, gas in the solid silica gel is extruded and is discharged from discharge valve, thereby can avoid producing the bubble in the silica gel product and taking place to warp, can improve the off-the-shelf qualification rate of silica gel, and the production cost is reduced, overcome current silica gel and easily have the defect that the air influences the shaping quality.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the technical principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims (9)

1. The utility model provides a supplementary feeding mechanism of formula silica gel is advanced to side, its characterized in that: the injection molding machine comprises a storage barrel (1) which is arranged on one side of an external injection molding machine and is hermetically connected with a feeding port, wherein a storage cavity (2) is arranged inside the storage barrel (1), and a feeding port (3) communicated with the storage cavity (2) is arranged on the upper side of the storage barrel (1); a material pushing part (4) is arranged in the material storage cavity (2) in a sliding mode, and an exhaust valve (5) communicated with the material storage cavity (2) is arranged on one side, close to the feeding port, of the material storage barrel (1); during the pay-off, through throw-in mouth (3) to the intussuseption of storage cavity (2) intussuseption solid silica gel, it will to push away material spare (4) slip solid silica gel push to the pan feeding mouth, gas in the solid silica gel is followed discharge in discharge valve (5).

2. The side-entry silica gel assist feed mechanism of claim 1, wherein: one end fixedly connected with material mouth connecting block (6) of storage vat (1), material mouth connecting block (6) through seal gasket (7) with pan feeding mouth sealing connection.

3. The side-entry silica gel assist feed mechanism of claim 2, wherein: the material storage barrel (1) and a material opening guide block (8) is installed between the material opening connecting blocks (6), and a horn-shaped material guide opening (9) is formed in the material opening guide block (8).

4. The side-entry silica gel assist feed mechanism of claim 1, wherein: the feeding opening (3) is formed in one end, far away from the feeding opening, of the storage barrel (1).

5. The side-entry silica gel assist feed mechanism of claim 1, wherein: articulated on storage vat (1) have and be used for the lid to close emergency exit (10) of input (3), inductive switch is installed to one side of emergency exit (10), inductive switch is used for guaranteeing emergency exit (10) lid closes time push away material piece (4) and just can slide.

6. The side-entry silica gel assist feed mechanism of claim 1, wherein: one end of the storage barrel (1) is fixed with a feeding oil cylinder (11), and the feeding oil cylinder (11) is connected with the material pushing piece (4).

7. The side-entry silica gel assist feed mechanism of claim 1, wherein: one side of the lower portion of the injection molding machine is provided with a fixing frame (12), a counterweight oil cylinder (13) is fixed on the fixing frame (12), and the counterweight oil cylinder (13) is connected with the storage barrel (1).

8. The side-entry silicone rubber auxiliary feed mechanism of claim 6, wherein: an injection and feeding seat (14) is arranged at the upper part of the injection molding machine, and a weight block group (15) is arranged on one side of the injection and feeding seat (14) corresponding to the storage barrel (1).

9. The side-entry silica gel assist feed mechanism of claim 1, wherein: the material pushing part (4) comprises an extrusion ring, a guide ring and a pressing plate which are fixedly connected in sequence.

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