Mixing device for producing vulcanized silicone rubber

Abstract

The utility model relates to the technical field of vulcanized silicone rubber production, in particular to a mixing device for vulcanized silicone rubber production, which comprises a bottom plate, a first support frame is fixedly connected to the top of the bottom plate, and a second support frame is fixedly connected to one end, far away from the first support frame, of the top of the bottom plate. A mounting block is fixedly connected to the top of the second supporting frame, and two pressing rollers distributed front and back are movably mounted between the first supporting frame and the mounting block. And a driving assembly is mounted in the mounting block and used for driving the two pressing rollers to rotate oppositely at the same time. The driving assembly comprises a driving motor, a first gear, a first belt pulley, a second gear, a second belt pulley and a driving belt, the driving motor is fixedly mounted on the inner wall of the mounting block, and the first gear is fixedly mounted at the output end of the driving motor. According to the utility model, the problem that the production efficiency is influenced by mixing through stirring in the prior art is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of vulcanized silicone rubber production, in particular to a mixing device for the production of vulcanized silicone rubber. Background Art

[0002] Vulcanized silicone rubber (RTV) is a new type of silicone elastomer. Its most notable feature is that it can be cured in situ at room temperature without heating or pressurization, making it extremely easy to use. Vulcanized silicone rubber has excellent anti-sticking properties, and its shrinkage rate is extremely small during vulcanization. It is particularly suitable for deep potting materials and has a faster vulcanization time. It is widely used as an adhesive, sealant, protective coating, potting and molding material, and has its uses in all walks of life. It is made of a variety of materials such as silicone rubber base, crosslinking agent, catalyst, filler and additives through a mixing device.

[0003] Chinese utility model patent CN220146386U discloses a mixing device for vulcanized silicone rubber production, including a stand, a groove is provided on the top of the stand, a vibration platform is provided in the groove, a mixing tank is provided on the top of the vibration platform, a vacuum tank, a compressed air tank, a powder tank and a liquid tank are provided on the top of the stand outside the groove, a feed port is provided on the top of the powder tank and the liquid tank, the liquid tank is connected to the mixing tank through a first feeding hose, the powder tank is connected to the mixing tank through a second feeding hose, the vacuum tank is connected to the mixing tank through a first exhaust hose, the compressed air tank is connected to the second feeding hose with a first air delivery hose, and a one-way safety valve is provided on the top of the mixing tank. The utility model can discharge bubbles in the product in time under the premise of ensuring that all raw materials are stirred evenly during production and use.

[0004] However, silicone rubber has unique chemical and physical properties. It becomes sticky at high temperatures and hardens at low temperatures. The above-mentioned patent uses stirring to mix, which will cause the rubber to stick to the stirring blade, making it impossible for the rubber on the stirring blade to be quickly mixed with other auxiliary materials. It takes a lot of time to mix evenly, thus affecting production efficiency. Utility Model Content

[0005] The utility model aims to solve the shortcomings in the prior art and proposes a mixing device for producing vulcanized silicone rubber.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a mixing device for vulcanized silicone rubber production, comprising a bottom plate, a first support frame is fixedly connected to the top of the bottom plate, a second support frame is fixedly connected to the top of the bottom plate away from the first support frame, a mounting block is fixedly connected to the top of the second support frame, and two pressure rollers distributed front and back are movably installed between the first support frame and the mounting block;

[0007] A driving assembly is installed inside the mounting block, and the driving assembly is used to drive the two pressing rollers to rotate towards each other simultaneously.

[0008] Further: the driving assembly includes a driving motor, a first gear, a first pulley, a second gear, a second pulley and a driving belt, the driving motor is fixedly installed on the inner wall of the mounting block, the first gear is fixedly installed on the output end of the driving motor, the outer wall of the first gear is fixedly connected to the first pulley, the top of the first gear is meshed with the second gear, the second gear is fixedly connected to the outer wall of the front end pressure roller, the outer wall of the rear end pressure roller is fixedly connected to the second pulley, and the driving belt is fixedly installed on the outer walls of the second pulley and the first pulley.

[0009] Further: one end of the two pressure rollers away from the driving assembly is fixedly connected to a support shaft, the interior of the first support frame is fixedly connected to a bearing, and the support shaft is located inside the bearing.

[0010] Further: the opposite surfaces of the first support frame and the second support frame are fixedly connected with support blocks, the two support blocks are located at the two ends of the bottom of the two pressure rollers, and a plurality of rollers distributed in a ring are movably installed inside the support blocks.

[0011] Further: a scraper is fixedly connected between the two support blocks, and the scraper is attached to the bottom of the two pressure rollers.

[0012] Further: a heating block is fixedly installed between the two support blocks, and the heating block is located on the outer wall of the rear end pressure roller.

[0013] Further: the first support frame and the top opposite surfaces of the mounting block are fixedly connected with stoppers, and the two stoppers are located on the tops of the two pressure rollers.

[0014] The utility model has the following beneficial effects:

[0015] 1. Compared with the prior art, by setting a pressing roller, a heating block and a stopper, when in use, the rubber is placed between the two pressing rollers, and the rubber is pressed by the opposite rotation of the two pressing rollers. During the pressing process, auxiliary materials are added, and the heating block is turned on to heat the pressing roller at the rear end. The heat of the pressing roller can better fuse the rubber and the auxiliary materials so that the auxiliary materials can be integrated into the rubber. At the same time, the two stops can prevent the rubber on the top of the pressing roller from overflowing from both sides of the pressing roller. After the pressing is completed, the rubber is discharged from the bottom of the pressing roller, and then the above operation is repeated again, and other auxiliary materials are added. After multiple pressing and mixing, vulcanized silicone rubber can be made, which solves the problem of mixing by stirring in the prior art, which affects the production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 It is a rear view structural schematic diagram of the utility model;

[0018] Figure 3 This is a schematic diagram of the explosion first-person perspective structure of the utility model;

[0019] Figure 4 This is a schematic diagram of the explosion structure of the utility model from a second viewing angle;

[0020] Figure 5 for Figure 4 Enlarged structural diagram at A in the middle.

[0021] Legend:

[0022] 1. Bottom plate; 2. First support frame; 201. Bearing; 3. Second support frame; 4. Pressure roller; 401. Support shaft; 5. Mounting block; 6. Driving assembly; 601. Driving motor; 602. First gear; 603. First pulley; 604. Second gear; 605. Second pulley; 606. Driving belt; 7. Scraper; 8. Support block; 9. Roller; 10. Heating block; 11. Stop block. DETAILED DESCRIPTION

[0023] Reference Figure 1-5 The utility model provides a mixing device for the production of vulcanized silicone rubber: it includes a bottom plate 1, a first support frame 2 is fixedly connected to the top of the bottom plate 1, a second support frame 3 is fixedly connected to the end of the top of the bottom plate 1 away from the first support frame 2, a mounting block 5 is fixedly connected to the top of the second support frame 3, and two front-to-back distributed pressure rollers 4 are movably installed between the first support frame 2 and the mounting block 5; a driving assembly 6 is installed inside the mounting block 5, and the driving assembly 6 is used to drive the two pressure rollers 4 to rotate towards each other at the same time.

[0024] When in use, turn on the driving component 6, control and drive the two pressing rollers 4 to rotate towards each other at the same time, then place the rubber between the two pressing rollers 4, and press the rubber through the two pressing rollers 4 rotating towards each other. During the pressing process, add auxiliary materials and allow the auxiliary materials to blend into the rubber. After the pressing is completed, repeat the above operation again, and then add other auxiliary materials. After multiple pressing and mixing, vulcanized silicone rubber can be made.

[0025] The driving assembly 6 includes a driving motor 601, a first gear 602, a first pulley 603, a second gear 604, a second pulley 605 and a driving belt 606. The driving motor 601 is fixedly installed on the inner wall of the mounting block 5, the first gear 602 is fixedly installed on the output end of the driving motor 601, the outer wall of the first gear 602 is fixedly connected to the first pulley 603, the top of the first gear 602 is meshed with the second gear 604, the second gear 604 is fixedly connected to the outer wall of the front end pressure roller 4, the outer wall of the rear end pressure roller 4 is fixedly connected to the second pulley 605, and the driving belt 606 is fixedly installed on the outer wall of the second pulley 605 and the outer wall of the first pulley 603.

[0026] When in use, the driving motor 601 is turned on to drive the first gear 602 to rotate counterclockwise, and then the front pressure roller 4 is driven to rotate clockwise through the second gear 604, and at the same time, the driving belt 606 is driven to rotate counterclockwise through the first pulley 603, and then the rear pressure roller 4 is driven to rotate counterclockwise through the second pulley 605, so that the two pressure rollers 4 can rotate towards each other at the same time.

[0027] One end of the two pressure rollers 4 away from the driving assembly 6 is fixedly connected to a support shaft 401 , and the interior of the first support frame 2 is fixedly connected to a bearing 201 , and the support shaft 401 is located inside the bearing 201 .

[0028] When in use, the two pressing rollers 4 can be supported on the top of the bottom plate 1 through the cooperation between the bearing 201 and the support shaft 401 .

[0029] The opposite surfaces of the first support frame 2 and the second support frame 3 are fixedly connected with support blocks 8. The two support blocks 8 are located at the two ends of the bottom of the two pressure rollers 4. A plurality of rollers 9 distributed in an annular shape are movably installed inside the support blocks 8.

[0030] When in use, the two pressing rollers 4 can be supported by the rollers 9 inside the supporting block 8 without affecting the rotation of the pressing rollers 4 .

[0031] A scraper 7 is fixedly connected between the two support blocks 8 , and the scraper 7 is attached to the bottom of the two pressure rollers 4 .

[0032] When in use, the rubber is put into the top of the two pressing rollers 4 and then discharged from the bottom after being squeezed. At this time, the rubber adhering to the outer wall of the pressing roller 4 can be scraped off by the scraper 7.

[0033] A heating block 10 is fixedly installed between the two supporting blocks 8 , and the heating block 10 is located on the outer wall of the rear end pressure roller 4 .

[0034] When in use, the rear end pressure roller 4 can be heated by the heating block 10 , and the heat of the pressure roller 4 can make the rubber and the auxiliary material blend better.

[0035] The top opposite surfaces of the first support frame 2 and the mounting block 5 are both fixedly connected with stoppers 11 , and the two stoppers 11 are located on the tops of the two pressing rollers 4 .

[0036] When in use, the two stoppers 11 can prevent the rubber on the top of the pressing roller 4 from overflowing from both sides of the pressing roller 4 .

[0037] Working principle: First, turn on the driving motor 601 to drive the first gear 602 to rotate counterclockwise, then drive the front pressure roller 4 to rotate clockwise through the second gear 604, and at the same time drive the driving belt 606 to rotate counterclockwise through the first pulley 603, and then drive the rear pressure roller 4 to rotate counterclockwise through the second pulley 605, so that the two pressure rollers 4 can rotate towards each other at the same time.

[0038] Next, the rubber is placed between the two pressing rollers 4, and the rubber is pressed by the two pressing rollers 4 rotating towards each other. During the pressing process, auxiliary materials are added. At this time, the heating block 10 is turned on to heat the rear end of the pressing roller 4. The heat of the pressing roller 4 can better fuse the rubber and the auxiliary materials, allowing the auxiliary materials to be integrated into the rubber. At the same time, the two blocks 11 can prevent the rubber on the top of the pressing roller 4 from overflowing from both sides of the pressing roller 4.

[0039] After the pressing is completed, it is discharged from the bottom of the pressing roller 4, and then the above operation is repeated again, and other auxiliary materials are added. After multiple pressing and mixing, vulcanized silicone rubber can be made.

[0040] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A mixing device for producing vulcanized silicone rubber, comprising a base plate (1), characterized in that: The top of the bottom plate (1) is fixedly connected to a first support frame (2); the top of the bottom plate (1) is fixedly connected to an end of the bottom plate (1) away from the first support frame (2); the top of the second support frame (3) is fixedly connected to a mounting block (5); and two pressure rollers (4) distributed front and rear are movably mounted between the first support frame (2) and the mounting block (5); A driving assembly (6) is installed inside the mounting block (5), and the driving assembly (6) is used to drive the two pressing rollers (4) to rotate towards each other simultaneously.

2. A mixing device for producing vulcanized silicone rubber according to claim 1, characterized in that: The driving assembly (6) comprises a driving motor (601), a first gear (602), a first pulley (603), a second gear (604), a second pulley (605) and a driving belt (606); the driving motor (601) is fixedly mounted on the inner wall of the mounting block (5); the first gear (602) is fixedly mounted on the output end of the driving motor (601); the first pulley (603) is fixedly connected to the outer wall of the first gear (602); the second gear (604) is meshed with the top of the first gear (602); the second gear (604) is fixedly connected to the outer wall of the front pressure roller (4); the second pulley (605) is fixedly connected to the outer wall of the rear pressure roller (4); the driving belt (606) is fixedly mounted between the second pulley (605) and the outer wall of the first pulley (603).

3. A mixing device for producing vulcanized silicone rubber according to claim 1, characterized in that: One end of the two pressure rollers (4) away from the driving assembly (6) is fixedly connected to a support shaft (401), the interior of the first support frame (2) is fixedly connected to a bearing (201), and the support shaft (401) is located inside the bearing (201).

4. A mixing device for producing vulcanized silicone rubber according to claim 1, characterized in that: The opposing surfaces of the first support frame (2) and the second support frame (3) are both fixedly connected with support blocks (8), the two support blocks (8) are located at the two ends of the bottom of the two pressure rollers (4), and a plurality of rollers (9) distributed in an annular shape are movably mounted inside the support blocks (8).

5. A mixing device for producing vulcanized silicone rubber according to claim 4, characterized in that: A scraper (7) is fixedly connected between the two support blocks (8), and the scraper (7) is attached to the bottom of the pressure roller (4) at the rear end.

6. A mixing device for producing vulcanized silicone rubber according to claim 4, characterized in that: A heating block (10) is fixedly mounted between the two support blocks (8), and the heating block (10) is located on the outer wall of the rear end pressure roller (4).

7. A mixing device for producing vulcanized silicone rubber according to claim 1, characterized in that: The top opposite surfaces of the first support frame (2) and the mounting block (5) are both fixedly connected with stoppers (11), and the two stoppers (11) are located on the tops of the two pressure rollers (4).

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