Liquid silica gel extrusion molding machine

Abstract

The utility model provides a liquid silica gel extrusion molding machine, which comprises a feeding assembly, a screw mixing assembly, a high-pressure melt gear pump and a segmented vulcanization assembly, the feeding assembly comprises a storage barrel I and a storage barrel II, the high-pressure melt gear pump is communicated with the screw mixing assembly, and the storage barrel II is communicated with the screw mixing assembly. The sectional vulcanization assembly is communicated with the high-pressurization melt gear pump; and the feeding assembly comprises a vacuum pump, a first flow suction pump and a second flow suction pump. Compared with the prior art, the utility model has the following beneficial effects: the stirred material is discharged into the screw mixing component through the discharge pipe, finally, the material forms mixed liquid, then the mixed liquid is quickly extruded out through the high-pressure melt gear pump, and finally, the mixed liquid is subjected to segmented vulcanization treatment through the segmented vulcanization component, so that the production efficiency is improved. According to the liquid silica gel product forming equipment, the number of stirring design parts is large, so that the material mixing efficiency is improved, and finally it is guaranteed that the basic forming quality is high.

Description

TECHNICAL FIELD

[0001] The utility model relates to a liquid silicone rubber extruding forming machine and belongs to the forming field. BACKGROUND

[0002] Liquid silicone rubber is also called liquid silicone, which is a liquid glue with good flowability and fast vulcanization, and is more safe and environmentally friendly, and can fully meet the requirements of food grade. Liquid silicone rubber has excellent tear resistance, resilience, yellowing resistance, thermal stability and heat resistance and aging resistance, and is mainly used for infant products, medical supplies and electronic products.

[0003] Liquid silicone rubber needs to use an extruding forming machine in the production process. The existing liquid silicone rubber extruding forming generally adopts the method of mixing A glue and B glue and then naturally flowing into a finished product mold for vulcanization treatment, which leads to the problem of low production efficiency and poor finished product quality. Therefore, the present application provides a liquid silicone rubber extruding forming machine with uniform mixing. UTILITY MODEL CONTENTS

[0004] In view of the deficiencies of the prior art, the utility model aims to provide a liquid silicone rubber extruding forming machine. In order to achieve the above-mentioned purpose, the utility model is realized by the following technical scheme:

[0005] A liquid silicone rubber extruding forming machine, comprising a feeding assembly, a screw mixing assembly, a high-pressure melt gear pump and a segmented vulcanization assembly, the feeding assembly comprises a storage barrel one and a storage barrel two, the high-pressure melt gear pump is communicated with the screw mixing assembly, the segmented vulcanization assembly is communicated with the high-pressure melt gear pump, the feeding assembly comprises a vacuum pump, a first flow suction pump and a second flow suction pump, the vacuum pump is respectively communicated with the first flow suction pump and the second flow suction pump, the first flow suction pump is respectively communicated with the storage barrel one and a feeding pipe one, the second flow suction pump is respectively communicated with the storage barrel two and a feeding pipe two, the feeding pipe one and the feeding pipe two are commonly connected with a mixing box at the other end, and the mixing box is connected with the screw mixing assembly through a plurality of discharge pipes.

[0006] Further, the storage barrel one contains A glue, the storage barrel two contains B glue, the first flow suction pump and the second flow suction pump are both screw type metering pumps, the high-pressure melt gear pump is a positive displacement gear pump, and the positive displacement gear pump comprises two pairs of cylindrical gears connected by external teeth.

[0007] Further, the segmented vulcanization assembly is a segmented heating pipe adopting a microwave heating mode, and the segmented temperature control ranges of the segmented heating pipe are 100 degrees Celsius, 120 degrees Celsius, 140 degrees Celsius, 160 degrees Celsius, 180 degrees Celsius and 200 degrees Celsius in sequence.

[0008] Further, the mixing box is externally provided with a fixed frame, and a driving motor is fixedly arranged on the fixed frame, and an output end of the driving motor is connected with a stirring rod penetrating into the mixing box, and a meshing gear is fixedly arranged on the stirring rod, and a secondary meshing gear is arranged on one side of the meshing gear, and a secondary stirring rod is arranged on a middle shaft of the secondary meshing gear in a penetrating mode, and the secondary stirring rod penetrates into the mixing box, and stirring blades are uniformly arranged on outer surfaces of the secondary stirring rod and the stirring rod.

[0009] Further, the screw mixing assembly is provided with a mixing long box, and a rotating rod is arranged in the mixing long box, and meshing wheels are fixedly arranged on outer surfaces of the rotating rod and the stirring rod respectively, and a meshing belt is arranged on the meshing wheels.

[0010] Further, the mixing long box is internally provided with a spiral cavity, and spiral conveying leaves are arranged on the rotating rod in the spiral cavity, and a secondary fixed frame is fixedly arranged on an outer side of the mixing long box, and bearings are fixedly arranged on the secondary fixed frame, the fixed frame, an outer wall of the mixing box and an outer wall of the mixing long box.

[0011] The beneficial effects of the present application are as follows:

[0012] The first flow suction pump and the second flow suction pump respectively suck the materials in the storage barrel one and the storage barrel two into the corresponding feeding pipe one and the feeding pipe two, and the materials are sent into the mixing box through the feeding pipe one and the feeding pipe two, and are mixed by stirring, and after stirring, the materials are discharged into the screw mixing assembly through the discharge pipe, and finally the materials form a mixing liquid, and then the mixing liquid is rapidly extruded through the high-pressure melt gear pump, and finally the mixing liquid is subjected to segmented vulcanization treatment through the segmented vulcanization assembly, so as to form the required liquid silicone product.

[0013] The device stirring design part is more, so as to improve the efficiency of material mixing, and finally ensure that the quality of the basic forming is higher. BRIEF DESCRIPTION OF DRAWINGS

[0014] Other features, objects and advantages of the present application will become more apparent from the following detailed description of non-limiting embodiments with reference to the attached drawings:

[0015] Figure 1 It is a front view of the liquid silicone extrusion forming machine of the present application;

[0016] Figure 2 It is a high-pressure melt gear pump schematic diagram of the liquid silicone extrusion forming machine of the present application;

[0017] Figure 3 It is a mixing box internal schematic diagram of the liquid silicone extrusion forming machine of the present application;

[0018] Figure 4 It is a mixing long box schematic view of the liquid silicone rubber extrusion molding machine.

[0019] In the figure: 1, high pressure melt gear pump; 2, storage barrel one; 3, storage barrel two; 4, vacuum pump; 5, first flow suction pump; 6, second flow suction pump; 7, feeding pipe one; 8, feeding pipe two; 9, mixing box; 10, discharge pipe; 11, cylindrical gear; 12, fixed frame; 13, driving motor; 14, stirring rod; 15, meshing gear; 16, secondary meshing gear; 17, secondary stirring rod; 18, mixing long box; 19, rotating rod; 20, meshing wheel; 21, meshing belt; 22, spiral cavity; 23, spiral conveying blade; 24, secondary fixed frame; 25, bearing. DETAILED DESCRIPTION

[0020] In order to make the technical means, creative features, purposes and effects of the utility model easy to understand, the utility model is further described below in combination with specific embodiments.

[0021] Please refer to Figures 1-4 The utility model provides a technical scheme: a liquid silicone rubber extrusion molding machine, including feeding assembly, screw mixing assembly, high pressure melt gear pump 1 and segmented vulcanization assembly, the feeding assembly includes storage barrel one 2 and storage barrel two 3, the high pressure melt gear pump 1 is communicated with the screw mixing assembly, the segmented vulcanization assembly communicates the high pressure melt gear pump 1 the feeding assembly includes vacuum pump 4, first flow suction pump 5, second flow suction pump 6, the vacuum pump 4 is communicated the first flow suction pump 5 and the second flow suction pump 6 respectively, the first flow suction pump 5 is communicated the storage barrel one 2 and feeding pipe one 7 respectively, the second flow suction pump 6 is communicated the storage barrel two 3 and feeding pipe two 8 respectively, the feeding pipe one 7 and the feeding pipe two 8 other end jointly connect with mixing box 9, the mixing box 9 is connected the screw mixing assembly through a plurality of discharge pipes 10.

[0022] Please refer to Figures 1-2 The storage barrel one 2 has A glue, the storage barrel two 3 has B glue, the first flow suction pump 5 and the second flow suction pump 6 are all screw type metering pump, the high pressure melt gear pump 1 is volumetric gear pump, the volumetric gear pump includes two pairs of cylindrical gear 11 of outer tooth connection.

[0023] The screw metering pump has the advantages of small volume, high flow, small flow pulsation variation, simple and convenient flow regulation, high measurement accuracy, etc., and can accurately deliver high-viscosity and lubricating medium.

[0024] Referring to Figure 1 , the segmented vulcanization assembly is a segmented heating pipe using microwave heating, and the segmented temperature control ranges of the segmented heating pipe are 100 degrees Celsius, 120 degrees Celsius, 140 degrees Celsius, 160 degrees Celsius, 180 degrees Celsius, and 200 degrees Celsius.

[0025] Through the segmented vulcanization treatment, the liquid silicone product gradually changes and forms, and the quality of the formed product is better. The microwave heating vulcanization occurs from the inside to the outside, has a dramatic change, a short curing time, and a high speed.

[0026] Referring to Figure 1 , Figure 3 and Figure 4 , a fixed frame 12 is fixedly arranged on the outer wall of the mixing box 9, a driving motor 13 is fixedly arranged on the fixed frame 12, a stirring rod 14 penetrating into the mixing box 9 is connected to the output end of the driving motor 13, a meshing gear 15 is fixedly sleeved on the stirring rod 14, a secondary meshing gear 16 is meshingly arranged on one side of the meshing gear 15, a secondary stirring rod 17 is penetratingly arranged on the central shaft of the secondary meshing gear 16, the secondary stirring rod 17 penetrates into the mixing box 9, stirring blades are uniformly arranged on the outer surfaces of the secondary stirring rod 17 and the stirring rod 14, the screw mixing assembly has a mixing long box 18, a rotating rod 19 is penetratingly arranged in the mixing long box 18, meshing wheels 20 are fixedly sleeved on the outer surfaces of the rotating rod 19 and the stirring rod 14, respectively, a meshing belt 21 is commonly sleeved on the meshing wheels 20, the mixing long box 18 has a spiral cavity 22 inside, spiral conveying leaves 23 are arranged on the rotating rod 19 and located in the spiral cavity 22, a secondary fixed frame 24 is fixedly arranged outside the mixing long box 18, bearings 25 are fixedly arranged on the outer walls of the secondary fixed frame 24, the fixed frame 12, the mixing box 9, and the mixing long box 18.

[0027] The driving motor 13 drives the stirring rod 14 to rotate, the meshing gear on the stirring rod 14 meshes with the secondary meshing gear, so that the stirring rod 14 drives the secondary stirring rod to rotate when the stirring rod 14 rotates, and the stirring blades on the outer surfaces of the secondary stirring rod 17 and the stirring rod 14 can preliminarily mix the rubber material.

[0028] When the stirring rod 14 rotates, the engaging wheel on it rotates, and the engaging wheel is in transmission connection with another engaging wheel by engaging belt, so that the stirring rod 14 drives the rotating rod to rotate, and finally drives the spiral conveying blade 23 to rotate to form the mixed liquid.

[0029] The engaging belt 21 is sleeved on the engaging wheels 20, so that the two engaging wheels 20 can be synchronously driven, and the engaging wheels 20 can be replaced by chain wheels, and the engaging belt can be replaced by a chain, which are conventional designs, and the purpose is to synchronously drive the stirring rod and the auxiliary stirring rod.

[0030] In use, the first flow suction pump 5 and the second flow suction pump 6 respectively suck the materials in the storage barrel 1 and the storage barrel 2 into the corresponding feeding pipe 1 and the feeding pipe 2, and then the materials are sent into the mixing box 9 through the feeding pipe 1 and the feeding pipe 2, and then the materials are mixed, and then the materials are discharged into the screw mixing assembly through the discharge pipe after stirring, and finally the materials are formed into a mixed liquid, and then the mixed liquid is quickly extruded by the high-pressure melt gear pump, and finally the mixed liquid is processed by the sectional vulcanization assembly to form the required liquid silicone product.

[0031] The device has more stirring design parts, so that the efficiency of material mixing is improved, and the quality of the basic molding is finally ensured to be high.

[0032] Although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description of the specification is only for the sake of clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A liquid silicone rubber extrusion molding machine characterized by comprising: The application relates to a rubber mixing machine, which comprises a feeding assembly, a screw mixing assembly, a high-pressure melt gear pump (1) and a sectional vulcanization assembly, wherein the feeding assembly comprises a storage barrel I (2) and a storage barrel II (3), the high-pressure melt gear pump (1) is communicated with the screw mixing assembly, and the sectional vulcanization assembly is communicated with the high-pressure melt gear pump (1); the feeding assembly comprises a vacuum pump (4), a first flow suction pump (5) and a second flow suction pump (6); the vacuum pump (4) is respectively communicated with the first flow suction pump (5) and the second flow suction pump (6); the first flow suction pump (5) is respectively communicated with the storage barrel I (2) and a feeding pipe I (7); the second flow suction pump (6) is respectively communicated with the storage barrel II (3) and a feeding pipe II (8); the feeding pipe I (7) and the feeding pipe II (8) are jointly connected with a mixing box (9) at the other ends; and the mixing box (9) is connected with the screw mixing assembly through a plurality of discharge pipes (10).

2. The liquid silicone rubber extrusion molding machine according to claim 1, characterized in that: The storage barrel I (2) contains A glue, the storage barrel II (3) contains B glue, the first flow suction pump (5) and the second flow suction pump (6) are screw type metering pumps, the high-pressure melt gear pump (1) is a volume type gear pump, and the volume type gear pump comprises two pairs of cylindrical gears (11) which are connected through outer teeth.

3. The liquid silicone rubber extrusion molding machine according to claim 2, wherein: The sectional vulcanization assembly is a sectional heating pipe adopting a microwave heating mode, and the sectional temperature control ranges of the sectional heating pipe are 100 DEG C, 120 DEG C, 140 DEG C, 160 DEG C, 180 DEG C and 200 DEG C in sequence.

4. The liquid silicone rubber extrusion molding machine according to claim 3, characterized in that: A fixed frame (12) is fixedly arranged on the outer wall of the mixing box (9), a driving motor (13) is fixedly arranged on the fixed frame (12), an agitating rod (14) penetrating into the mixing box (9) is connected to the output end of the driving motor (13), a meshing gear (15) is fixedly sleeved on the agitating rod (14), a secondary meshing gear (16) is arranged on one side of the meshing gear (15), a secondary agitating rod (17) is arranged on the central shaft of the secondary meshing gear (16) in a penetrating mode, the secondary agitating rod (17) penetrates into the mixing box (9), and the outer surfaces of the secondary agitating rod (17) and the agitating rod (14) are uniformly provided with agitating blades.

5. The liquid silicone rubber extrusion molding machine according to claim 4, wherein: The screw mixing assembly is provided with a mixing long box (18), a rotating rod (19) is arranged in the mixing long box (18), meshing wheels (20) are fixedly sleeved on the outer surfaces of the rotating rod (19) and the agitating rod (14) respectively, and meshing belts (21) are jointly sleeved on the meshing wheels (20).

6. The liquid silicone rubber extrusion molding machine according to claim 5, wherein: The mixing long box (18) is internally provided with a spiral cavity (22), and spiral conveying leaves (23) are arranged on the rotating rod (19) and located in the spiral cavity (22); a secondary fixed frame (24) is fixedly arranged on the outer side of the mixing long box (18); and bearings (25) are fixedly arranged on the outer walls of the secondary fixed frame (24), the fixed frame (12), the mixing box (9), the mixing long box (18) and the secondary fixed frame (24).

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