Blending device for preparing polytetrafluoroethylene film

Abstract

The utility model relates to a mixing and batching device for polytetrafluoroethylene film preparation, which comprises a supporting seat and a top cover, the inside of the supporting seat is slidably connected with a mixing tank, the inside of the supporting seat is provided with a jacking assembly, the jacking assembly comprises a transmission seat, a moving block, a jacking rod and an upper rotating seat, the transmission seat is fixedly arranged on the inner wall of the supporting seat, and the moving block is fixedly arranged on the upper rotating seat. And a moving block is slidably connected into the transmission seat, a lower rotating seat is fixedly arranged on the outer wall of the top of the moving block, and the bottom end and the top end of the ejector rod are rotationally connected into the lower rotating seat and the upper rotating seat correspondingly. According to the utility model, the mixing tank can be lifted, the stirring shaft rod is used for transversely stirring polytetrafluoroethylene and an auxiliary agent, and the lifting plate can be used for lifting the polytetrafluoroethylene and the auxiliary agent at the bottom in the mixing tank, so that the polytetrafluoroethylene and the auxiliary agent can be uniformly stirred after being circularly lifted; the stirring and mixing effects on polytetrafluoroethylene and auxiliaries at the bottom, the middle and the top in the mixing tank can be better, and the mixing is more uniform.

Description

Technical Field

[0001] This utility model relates to the field of polytetrafluoroethylene film technology, and in particular to a mixing device for preparing polytetrafluoroethylene film. Background Technology

[0002] Polytetrafluoroethylene film, also known as Teflon film, is a polymer film made of polytetrafluoroethylene resin through a series of processing steps. When processing polytetrafluoroethylene film, a mixing device is used to mix polytetrafluoroethylene resin and additives.

[0003] A search revealed that Chinese Patent CN217802624U discloses a premixing device for producing polytetrafluoroethylene (PTFE) film, including a support frame. A mixing box is fixedly installed on the top of the support frame. An automatic weighing mechanism is provided on the top of the mixing box. The automatic weighing mechanism includes a fixed frame, which is fixedly installed on the top of the mixing box. A sliding groove is opened on the inner side of the fixed frame, and a sliding frame is slidably installed in the sliding groove. A weighing funnel is fixedly installed in the middle of the sliding frame, and a discharge pipe is fixedly installed at the bottom of the weighing funnel. A fixed frame is fixedly installed on the top of the mixing box, and a pressure sensor is fixedly installed on the bottom inner wall of the fixed frame. A pressing block is fixedly installed inside the fixed frame, and a connecting rod is fixedly installed on the top of the pressing block.

[0004] In actual use, this patent has the following drawbacks:

[0005] In this patent, when mixing polytetrafluoroethylene (PTFE) and additives, a stirring rod is usually used to stir horizontally. This method cannot fully mix the PTFE and additives at the bottom, middle, and top of the mixing device, resulting in poor mixing effect and incomplete mixing of PTFE and additives. Utility Model Content

[0006] In view of the technical problem that in the prior art, when mixing polytetrafluoroethylene (PTFE) and additives, the mixing method of horizontal stirring with a stirring rod is usually used, which cannot fully mix PTFE and additives at the bottom, middle and top of the mixing device, resulting in poor mixing effect, this utility model provides a mixing device for PTFE film preparation.

[0007] The technical solution adopted by this utility model is: a mixing device for preparing polytetrafluoroethylene film, including a support base and a top cover. A mixing tank is slidably connected inside the support base. A lifting assembly is provided inside the support base. The lifting assembly includes a transmission base, a moving block, a top rod, and an upper rotating seat. The transmission base is fixedly installed on the inner wall of the support base. A moving block is slidably connected inside the transmission base, and a lower rotating seat is fixedly installed on the outer wall of the top of the moving block. The bottom and top ends of the top rod are rotatably connected inside the lower rotating seat and the upper rotating seat, respectively. The upper rotating seat is fixedly installed on the outer wall of the bottom of the mixing tank. A transmission motor is fixedly installed at one end of the transmission base, and a lead screw is installed on the output shaft of the transmission motor. The moving block is threaded onto the outside of the lead screw.

[0008] Furthermore, a top seat is fixedly provided on the top of the support base, and the top cover is fixedly provided on the outer wall of the top seat, with the inner wall of the top cover fitting against the outer wall of the mixing tank.

[0009] Furthermore, a stirring motor is fixedly installed on the outer wall of the top of the cover, and a stirring shaft is installed on the output shaft of the stirring motor, and a lifting plate is fixedly installed on the outer wall of the stirring shaft.

[0010] Furthermore, a discharge pipe is provided on the outer wall of the bottom of the mixing tank, and a solenoid valve is provided on the outer wall of the discharge pipe.

[0011] Furthermore, a feeding assembly is fixedly installed on the outer wall of the top of the cover. The feeding assembly includes a feeding cylinder, a screen, and a rotating frame. The feeding cylinder is fixedly installed on the outer wall of the top of the cover, and the screen is fixedly installed on the inner wall of the feeding cylinder. A hopper is installed on the outer wall of one side of the feeding cylinder.

[0012] Furthermore, a rotating motor is installed on the outer wall of the top of the feeding cylinder, and one end of the rotating frame is connected to the output shaft of the rotating motor.

[0013] Furthermore, a crushing roller is rotatably connected to the inner wall of the rotating frame via a bearing, and the crushing roller is in contact with the screen.

[0014] The beneficial effects of this utility model are:

[0015] This invention uses a lifting assembly to raise and lower the mixing tank. Combined with the stirring shaft for lateral stirring of PTFE and additives, and the lifting plate for lifting PTFE and additives from the bottom of the mixing tank, the repeated raising and lowering process achieves better mixing of PTFE and additives at the bottom, middle, and top of the mixing tank, resulting in a more uniform mixture.

[0016] Secondly, the present invention utilizes a screen in the feeding assembly, which can screen out agglomerated polytetrafluoroethylene and additives, thus preventing the agglomerated polytetrafluoroethylene and additives from being unable to mix.

[0017] This invention also utilizes the crushing roller of the feeding assembly to drive the crushing roller to rotate, which can crush the clumps of polytetrafluoroethylene and additives without the need to remove and process the clumps of polytetrafluoroethylene and additives, making it more convenient. Attached Figure Description

[0018] Figure 1 This is a three-dimensional view of the entire utility model;

[0019] Figure 2 This is a perspective view of the mixing tank of this utility model;

[0020] Figure 3 This is a perspective view of the feeding component of this utility model;

[0021] Figure 4 This is a perspective view of the lifting component of this utility model.

[0022] The following are marked in the diagram: 1. Support base; 2. Mixing tank; 3. Lifting assembly; 31. Transmission base; 32. Moving block; 33. Lower rotating base; 34. Top rod; 35. Upper rotating base; 36. Transmission motor; 37. Lead screw; 4. Top seat; 5. Top cover; 6. Agitator motor; 7. Agitator shaft; 8. Lifting plate; 9. Feeding assembly; 91. Feeding cylinder; 92. Screen; 93. Rotating motor; 94. Rotating frame; 95. Crushing roller; 96. Hopper; 10. Discharge pipe; 11. Solenoid valve. Detailed Implementation

[0023] In the description of this utility model, it should be noted that the terms "front", "up", "down", "left", "right", "vertical", "horizontal", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0024] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0025] The following is in conjunction with the appendix Figures 1-4The present invention will be further described below.

[0026] In order to solve the problems existing in the background art, this application proposes the following technical solution: a mixing and batching device for preparing polytetrafluoroethylene film.

[0027] The specific technical solution includes a support base 1 and a top cover 5. A mixing tank 2 is slidably connected inside the support base 1. A lifting assembly 3 is installed inside the support base 1. The lifting assembly 3 includes a transmission base 31, a moving block 32, a push rod 34, and an upper rotating seat 35. The transmission base 31 is fixedly installed on the inner wall of the support base 1. The moving block 32 is slidably connected inside the transmission base 31, and a lower rotating seat 33 is fixedly installed on the outer wall of the top of the moving block 32. The bottom and top ends of the push rod 34 are rotatably connected to the lower rotating seat 33 and the upper rotating seat 35, respectively. Inside the upper rotating seat 35, the upper rotating seat 35 is fixedly installed on the outer wall of the bottom of the mixing tank 2. One end of the transmission seat 31 is fixedly equipped with a transmission motor 36, and a lead screw 37 is installed on the output shaft of the transmission motor 36. The moving block 32 is threadedly connected to the outside of the lead screw 37, which can raise and lower the mixing tank 2. This allows the mixing shaft 7 to stir the polytetrafluoroethylene and additives laterally while lifting the polytetrafluoroethylene and additives, so that the polytetrafluoroethylene and additives in the bottom, middle and upper parts of the mixing tank 2 are fully mixed.

[0028] In specific implementations, such as Figure 1 and Figure 2 As shown, a top seat 4 is fixedly installed on the top of the support base 1, and a top cover 5 is fixedly installed on the outer wall of the top seat 4. The inner wall of the top cover 5 is in contact with the outer wall of the mixing tank 2, which can prevent polytetrafluoroethylene and additives from running out when the mixing tank 2 is raised or lowered.

[0029] Furthermore, a stirring motor 6 is fixedly installed on the outer wall of the top of the top cover 5, and a stirring shaft 7 is installed on the output shaft of the stirring motor 6. A lifting plate 8 is fixedly installed on the outer wall of the stirring shaft 7. The stirring motor 6 can drive the stirring shaft 7 to rotate and stir the polytetrafluoroethylene and additives laterally. At the same time, when the mixing tank 2 is raised and lowered, the lifting plate 8 can lift the polytetrafluoroethylene and additives.

[0030] In specific implementations, such as Figure 2 and Figure 4 As shown, a discharge pipe 10 is provided on the outer wall of the bottom of the mixing tank 2, and a solenoid valve 11 is provided on the outer wall of the discharge pipe 10. The mixed polytetrafluoroethylene and additive mixture is discharged through the discharge pipe 10.

[0031] In specific implementations, such as Figure 1 and Figure 3As shown, a feeding assembly 9 is fixedly installed on the outer wall of the top of the top cover 5. The feeding assembly 9 includes a feeding cylinder 91, a screen 92 and a rotating frame 94. The feeding cylinder 91 is fixedly installed on the outer wall of the top of the top cover 5, and the screen 92 is fixedly installed on the inner wall of the feeding cylinder 91. A hopper 96 is provided on the outer wall of one side of the feeding cylinder 91. The screen 92 can screen out the clumps of polytetrafluoroethylene and additives, which can prevent uneven mixing during subsequent mixing.

[0032] Furthermore, a rotating motor 93 is provided on the outer wall of the top of the feeding cylinder 91, and one end of the rotating frame 94 is connected to the output shaft of the rotating motor 93. The rotating motor 93 can drive the rotating frame 94 to rotate, so that the rotating frame 94 drives the crushing roller 95 to rotate and crush the polytetrafluoroethylene and additives.

[0033] Furthermore, a crushing roller 95 is rotatably connected to the inner wall of the rotating frame 94 via a bearing, and the crushing roller 95 is in contact with the screen 92, thereby crushing and dropping the crushed material into the screen.

[0034] To ensure that those skilled in the art can fully understand the technical solution, this application provides the following overall overview:

[0035] In use, PTFE and additives are fed into the feeding cylinder 91 through the hopper 96. PTFE and additives that pass through the screen 92 fall into the mixing tank 2, while PTFE and additives that do not pass through the screen 92 remain on the screen. The rotating motor 93 is turned on, driving the rotating frame 94 to rotate, which in turn drives the crushing roller 95 to rotate, crushing the PTFE and additives that did not pass through the screen 92 and preventing insufficient mixing during subsequent mixing. The stirring motor 6 is turned on, driving the stirring shaft 7 to rotate, which in turn drives the lifting plate 8 to stir and mix the PTFE and additives. While mixing, the drive motor 36 is turned on. The drive motor 36 drives the lead screw 37 to rotate and the moving block 32 to rotate. This causes the moving block 32 to push the top rod 34 to move. Due to the action of the lower rotating seat 33 and the upper rotating seat 35, the mixing tank 2 can be raised and lowered. The mixing tank 2 will rise and fall within the top cover 5, which can prevent polytetrafluoroethylene and additives from escaping. The lifting plate 8 can lift the material, which can make the polytetrafluoroethylene and additives at the bottom, middle and top of the mixing tank 2 fully mixed, resulting in better and more uniform mixing. After mixing is completed, the solenoid valve 11 is turned on, and the material is discharged through the discharge pipe 10.

[0036] All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. In addition, the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here. The contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0037] Although embodiments of the present invention have been shown and described, the scope of the present invention will be defined by the appended claims and their equivalents for those skilled in the art.

Claims

1. A mixing apparatus for preparing polytetrafluoroethylene (PTFE) films, characterized in that, The device includes a support base (1) and a top cover (5). The support base (1) is slidably connected to a mixing tank (2). The support base (1) is equipped with a lifting assembly (3). The lifting assembly (3) includes a transmission base (31), a moving block (32), a top rod (34), and an upper rotating seat (35). The transmission base (31) is fixedly installed on the inner wall of the support base (1). The transmission base (31) is slidably connected to a moving block (32). A lower rotating seat (33) is fixedly installed on the outer wall of the top of the moving block (32). The bottom and top ends of the top rod (34) are rotatably connected to the interior of the lower rotating seat (33) and the upper rotating seat (35), respectively. The upper rotating seat (35) is fixedly installed on the outer wall of the bottom of the mixing tank (2). A transmission motor (36) is fixedly installed at one end of the transmission base (31). A lead screw (37) is installed on the output shaft of the transmission motor (36). The moving block (32) is threaded onto the outside of the lead screw (37).

2. The mixing apparatus for preparing polytetrafluoroethylene film according to claim 1, characterized in that, The top of the support base (1) is fixedly provided with a top seat (4), and the top cover (5) is fixedly provided on the outer wall of the top seat (4), and the inner wall of the top cover (5) is in contact with the outer wall of the mixing tank (2).

3. The mixing apparatus for preparing polytetrafluoroethylene film according to claim 2, characterized in that, A stirring motor (6) is fixedly installed on the outer wall of the top of the top cover (5), and a stirring shaft (7) is installed on the output shaft of the stirring motor (6). A lifting plate (8) is fixedly installed on the outer wall of the stirring shaft (7).

4. The mixing apparatus for preparing polytetrafluoroethylene film according to claim 1, characterized in that, The mixing tank (2) is provided with a discharge pipe (10) on the outer wall of the bottom, and a solenoid valve (11) is provided on the outer wall of the discharge pipe (10).

5. The mixing apparatus for preparing polytetrafluoroethylene film according to claim 1, characterized in that, A feeding assembly (9) is fixedly installed on the outer wall of the top of the top cover (5). The feeding assembly (9) includes a feeding cylinder (91), a screen (92) and a rotating frame (94). The feeding cylinder (91) is fixedly installed on the outer wall of the top of the top cover (5), and the screen (92) is fixedly installed on the inner wall of the feeding cylinder (91). A hopper (96) is installed on the outer wall of one side of the feeding cylinder (91).

6. The mixing apparatus for preparing polytetrafluoroethylene film according to claim 5, characterized in that, A rotating motor (93) is provided on the outer wall of the top of the feeding cylinder (91), and one end of the rotating frame (94) is connected to the output shaft of the rotating motor (93).

7. The mixing apparatus for preparing polytetrafluoroethylene film according to claim 6, characterized in that, The inner wall of the rotating frame (94) is rotatably connected to a crushing roller (95) via a bearing, and the crushing roller (95) is in contact with the screen (92).

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