A PTFE air purification membrane degreasing and stretching device with rollers of different speed ratios

Abstract

This utility model discloses a PTFE air purification membrane degreasing and stretching device with rollers of different speed ratios, comprising: an oven with a feed inlet on one side and a discharge outlet on the other side, and an exhaust outlet on the top of the oven; a speed ratio roller group rotatably connected inside the oven, the speed ratio roller group consisting of multiple parallel roller shafts, with sleeve rollers detachably connected to the roller shafts; and heating components arranged around the roller shafts. Compared with the prior art, this utility model, through the speed ratio roller group, can improve the uniformity of longitudinal stretching of the air purification membrane and improve the stretching quality of the air purification membrane.

Description

Technical Field

[0001] This utility model relates to the field of air purification membrane processing equipment, and in particular to a PTFE air purification membrane degreasing and stretching device with rollers having different speed ratios. Background Technology

[0002] Air purification membranes are made from polytetrafluoroethylene (PTFE), which undergoes expansion, calendering, and biaxial stretching to form a microporous film. Currently, commonly used PTFE stretching and degreasing devices employ heating rods mounted on stretching rollers. While the PTFE strip is being stretched longitudinally around the rollers, it is simultaneously heated. This process can easily lead to uneven deformation of the PTFE strip during stretching and heating, thus affecting the microporous structure and resulting in unstable properties. Utility Model Content

[0003] This utility model provides a PTFE air purification membrane degreasing and stretching device with rollers of different speed ratios. By setting the roller group of different speed ratios, the uniformity of longitudinal stretching of the air purification membrane can be improved, thereby improving the stretching quality of the air purification membrane.

[0004] To achieve the above objectives, this utility model provides a PTFE air purification membrane degreasing and stretching device with rollers having different speed ratios, comprising:

[0005] An oven, wherein a feed inlet is provided on one side of the oven, a discharge outlet is provided on the other side of the oven, and an exhaust outlet is provided on the top of the oven;

[0006] A speed ratio roller group is rotatably connected inside the oven. The speed ratio roller group is composed of multiple parallel roller shaft units. Each roller shaft unit includes at least one roller shaft, and a sleeve roller is detachably connected to the roller shaft.

[0007] Heating components are provided around the roller shaft.

[0008] As a further description of the above technical solution:

[0009] The roller shaft is provided with multiple slots, which are arranged along the axial direction of the roller shaft. The sleeve roller is provided with a retaining strip, which is engaged in the slot.

[0010] As a further description of the above technical solution:

[0011] The multi-stage roller unit is divided into three layers: upper, middle, and lower, arranged in an alternating pattern.

[0012] As a further description of the above technical solution:

[0013] At least one of the heating elements is provided on the side wall and bottom wall of the oven.

[0014] As a further description of the above technical solution:

[0015] The heating element is a heating rod or a heating plate.

[0016] As a further description of the above technical solution:

[0017] Both the feed inlet and the discharge outlet are equipped with guide rollers.

[0018] In summary, due to the adoption of the above technical solutions, the beneficial effects of this utility model are as follows: by setting the speed ratio roller group, the uniformity of longitudinal stretching of the air purification film can be improved, and the stretching quality of the air purification film can be improved; by setting a detachable sleeve roller on the roller shaft, it is easy to disassemble and clean the sleeve roller, wash away the oil stains on the sleeve roller, and improve the processing quality of the air purification film. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a front structural schematic diagram of a PTFE air purification membrane degreasing and stretching device with rollers having different speed ratios.

[0021] Figure 2 for Figure 1 Enlarged view of point A in the middle.

[0022] Figure 3 This is a cross-sectional view of the roller shaft in a PTFE air purification membrane degreasing and stretching device with rollers having different speed ratios.

[0023] Legend:

[0024] 1. Oven; 2. Feed inlet; 3. Discharge outlet; 4. Exhaust outlet; 5. Speed ​​ratio roller set; 6. Roller shaft; 7. Sleeve roller; 8. Heating component; 9. Slot; 10. Slot strip; 11. Guide roller. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0026] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0027] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0028] In the description of the embodiments of this utility model, it should be noted that the terms "upper" and "inner" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product is usually placed when in use. 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.

[0029] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" 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.

[0030] Please see Figure 1-3 This utility model provides a PTFE air purification membrane degreasing and stretching device with rollers having different speed ratios, comprising:

[0031] The oven 1 has a feed inlet 2 on one side, a discharge outlet 3 on the other side, and an exhaust outlet 4 on the top.

[0032] Speed ​​ratio roller group 5, the speed ratio roller group 5 is rotatably connected in the oven 1, the speed ratio roller group 5 is composed of a multi-stage roller shaft unit that is parallel to each other, each stage of the roller shaft unit includes at least one roller shaft 6, and a sleeve roller 7 is detachably connected to the roller shaft 6;

[0033] Heating component 8 is provided around the roller 6.

[0034] The roller shaft 6 is provided with multiple slots 9, which are arranged along the axial direction of the roller shaft 6. A retaining strip 10 is provided inside the sleeve roller 7, and the retaining strip 10 engages within the slots 9. The multiple slots are arranged circumferentially along the roller shaft, and each slot extends axially along the roller shaft, which makes the sleeve roller more stable. During installation, the sleeve roller can be inserted from the end of the roller shaft. To improve the stability of the sleeve roller installation, screws can be used to connect the end of the sleeve roller to the roller shaft.

[0035] The multi-stage roller unit is divided into three layers arranged in an alternating pattern: upper, middle, and lower. Specifically, there are three rollers in the upper layer, two in the middle layer, and two in the lower layer.

[0036] At least one heating element 8 is provided on the side wall and bottom wall of the oven 1. The heating element 8 is a heating rod or a heating plate. Specifically, the heating element is a heating plate.

[0037] Both the inlet 2 and the outlet 3 are equipped with guide rollers 11. There are two guide rollers arranged parallel to each other to prevent the air purification membrane from being scratched when it enters or exits.

[0038] Working principle: By setting up a speed ratio roller group, the uniformity of longitudinal stretching of the air purification membrane can be improved, thus improving the stretching quality of the air purification membrane; the detachable sleeve rollers on the roller shaft can be easily disassembled and cleaned, removing oil stains from the sleeve rollers and improving the processing quality of the air purification membrane.

[0039] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A PTFE air purification membrane degreasing and stretching device with rollers having different speed ratios, characterized in that... ,include: An oven, wherein a feed inlet is provided on one side of the oven, a discharge outlet is provided on the other side of the oven, and an exhaust outlet is provided on the top of the oven; A speed ratio roller group is rotatably connected inside the oven. The speed ratio roller group is composed of multiple parallel roller shaft units. Each roller shaft unit includes at least one roller shaft, and a sleeve roller is detachably connected to the roller shaft. Heating components are provided around the roller shaft.

2. The PTFE air purification membrane degreasing and stretching device with rollers of different speed ratios according to claim 1, characterized in that... The roller shaft is provided with multiple slots, which are arranged along the axial direction of the roller shaft. The sleeve roller is provided with a retaining strip, which is engaged in the slot.

3. The PTFE air purification membrane degreasing and stretching device with rollers of different speed ratios according to claim 1, characterized in that... The multi-stage roller unit is divided into three layers: upper, middle, and lower, arranged in an alternating pattern.

4. The PTFE air purification membrane degreasing and stretching device with rollers of different speed ratios according to claim 1, characterized in that... At least one of the heating elements is provided on the side wall and bottom wall of the oven.

5. A PTFE air purification membrane degreasing and stretching device with rollers having different speed ratios according to claim 1 or 4, characterized in that... The heating component is a heating rod or a heating plate.

6. The PTFE air purification membrane degreasing and stretching device with rollers having different speed ratios according to claim 1, characterized in that... Both the feed inlet and the discharge outlet are equipped with guide rollers.

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