A PTFE high-strength sewing thread sintered structure

Abstract

The utility model provides a PTFE high-strength sewing thread sintering structure. The PTFE high-strength sewing thread sintering structure includes a sintering box and guide rollers. Splicing holes are longitudinally opened at the four corners of the top of the sintering box, and splicing columns adapted to the splicing holes are installed at the four corners of the bottom for splicing multiple sintering boxes; the sintering box is provided with openings on both sides symmetrically along the length direction. At least three guide rollers, two of which are movably installed on one side of the sintering box and close to the opening, and the other guide roller is movably installed on the outside of the other symmetrical side of the sintering box, and the three guide rollers are distributed in a triangular shape. The utility model guides the PTFE molded products to tilt and move through the triangular distribution of the three guide rollers on both sides of the sintering box, expands the gap between the PTFE molded products and the area in the sintering box, and the volume of the PTFE molded products guided by each sintering box is consistent. Multiple sintering boxes can be spliced ​​according to needs to meet the needs of different production volumes.

Description

Technical Field

[0001] The utility model relates to the technical field of PTFE processing, in particular to a PTFE high-strength sewing thread sintering structure. Background Art

[0002] PTFE, or polytetrafluoroethylene, is widely used in chemical, petroleum, textile, food, papermaking, medicine, electronics, machinery and other industrial and marine fields. In order to overcome the shortcomings of PTFE itself, such as low hardness and high wear rate, carbon fiber (CF), graphite and other materials are added to PTFE to prepare high-strength sewing thread. The finished product, such as film, needs to be sintered and then cut into the required shape of sewing thread.

[0003] The existing sintering furnace is used to perform the operation when sintering thin film products. The products are guided into and discharged, and the sintering is completed in the sintering furnace. In order to meet the sintering of rolled products, the existing sintering furnace is relatively large in size. The film needs to be distributed in a serpentine shape inside the sintering furnace to meet the sintering of batches of thin films. The gap between the films is small, and if there are sintering processes at different temperatures, multiple large-volume sintering furnaces are required to work together. The equipment is huge and guiding the film is cumbersome. Utility Model Content

[0004] Based on this, it is necessary to provide a PTFE high-strength sewing thread sintering structure to address the existing problems of large equipment volume and complicated product layout for sintering PTFE molded products.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A PTFE high-strength sewing thread sintering structure comprises a sintering box and a guide roller.

[0007] At least one sintering box, with splicing holes longitudinally opened at the four corners of the top, and splicing columns matching the splicing holes installed at the four corners of the bottom, for splicing multiple sintering boxes; the sintering box is symmetrically opened on both sides along the length direction;

[0008] At least three guide rollers are provided, two of which are movably mounted on one side of the sintering box and close to the opening, and another guide roller is movably mounted on the outside of the other symmetrical side of the sintering box. The three guide rollers are distributed in a triangle to guide the PTFE wire to move obliquely in the sintering box.

[0009] Furthermore, the sintering box includes two longitudinal plates and two transverse plates; the two longitudinal plates and the two transverse plates surround to form a rectangular frame structure and are connected as a whole by bolts; a heating element is installed inside the longitudinal plate.

[0010] Furthermore, reinforcing plates are fixedly connected to the inner top and bottom of the longitudinal plate, and the reinforcing plates are connected to the transverse plate by bolts.

[0011] Furthermore, the splicing holes and the splicing columns are respectively arranged at the top and the bottom of the longitudinal plate.

[0012] Furthermore, the plurality of sintering boxes are distributed longitudinally and two sintering boxes adjacent to each other longitudinally are integrated by plugging the splicing columns and the splicing holes.

[0013] Furthermore, adjacent sintering boxes have two guide rollers on one side which are staggered.

[0014] Furthermore, a reinforcement structure for preventing the sintering boxes from tipping over is arranged outside the plurality of sintering boxes.

[0015] Furthermore, the reinforcement structure includes a U-shaped frame and a limiting bolt; the U-shaped frame is arranged on one side of the closed sintering box, the top bending part of the U-shaped frame fits with the top sintering box, and the bottom bending part of the U-shaped frame is located below the bottom sintering box; the limiting bolt is longitudinally threadedly connected to the bottom bending part of the U-shaped frame, and the end of the limiting bolt is in contact with the bottom sintering box.

[0016] Furthermore, the reinforcement mechanism includes an L-shaped frame and a slider; the L-shaped frame is arranged on one side of the closed sintering box, the bending part of the L-shaped frame is in contact with the top sintering box, the side of the L-shaped frame is detachably connected with the slider, and the side of the slider away from the L-shaped frame is provided with a slot for clamping on the outer periphery of the splicing column, and the gap in the slot gradually decreases from the outside to the inside.

[0017] Furthermore, the reinforcement mechanism includes two L-shaped rods; the two L-shaped rods are spliced ​​to form a rectangular frame which is sleeved on the outside of the box structure formed by the multiple sintering boxes.

[0018] Compared with the prior art, the beneficial effects of the utility model include:

[0019] 1. The utility model guides the PTFE molded products to move obliquely by setting three guide rollers triangularly distributed on both sides of the sintering box, thereby expanding the gaps between the PTFE molded products and the area in the sintering box. The volume of the PTFE molded products guided by each sintering box is consistent. Multiple sintering boxes can be spliced ​​according to needs to meet the needs of different production volumes;

[0020] 2. The utility model is spliced ​​by multiple sintering boxes, which are distributed longitudinally. When there are different temperature sintering processes, different sintering temperatures are set in different sintering boxes according to the guiding direction of the PTFE molded products to meet the process requirements;

[0021] 3. The reinforcement structure provided in the utility model can be reinforced after a plurality of sintering boxes are longitudinally spliced ​​into one, which can not only reduce the risk of collapse but also facilitate the overall movement thereof. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The disclosure of the present invention is described with reference to the accompanying drawings. It should be understood that the drawings are only for illustrative purposes and are not intended to limit the scope of protection of the present invention. In the drawings, the same reference numerals are used to refer to the same components. Among them:

[0023] Figure 1 This is a three-dimensional diagram of a PTFE high-strength sewing thread sintered structure introduced in the utility model;

[0024] Figure 2 Based on Figure 1 A three-dimensional image from another perspective of a sintered structure of a PTFE high-strength sewing thread;

[0025] Figure 3 Based on Figure 1 An internal cross-sectional view of a sintering box;

[0026] Figure 4 This is a schematic diagram of the splicing of two sintering boxes;

[0027] Figure 5 This is a schematic diagram of the reinforcement structure introduced in Example 1;

[0028] Figure 6 This is a schematic diagram of the reinforcement structure introduced in Example 2;

[0029] Figure 7 Based on Figure 6 Schematic diagram of a slider;

[0030] Figure 8 This is a schematic diagram of the reinforcement mechanism introduced in Example 3.

[0031] Explanations in the figure: 1. Sintering box; 11. Splicing column; 12. Splicing hole; 13. Longitudinal plate; 14. Transverse plate; 15. Reinforcement plate; 2. Guide roller; 31. U-shaped frame; 32. Limit bolt; 41. L-shaped frame; 42. Slider; 51. L-shaped rod. DETAILED DESCRIPTION

[0032] It is easy to understand that according to the technical solution of the utility model, without changing the essential spirit of the utility model, a person skilled in the art can propose a variety of interchangeable structural modes and implementation modes. Therefore, the following specific implementation modes and drawings are only exemplary descriptions of the technical solution of the utility model, and should not be regarded as the entirety of the utility model or as a limitation or restriction to the technical solution of the utility model.

[0033] Example 1

[0034] See also Figure 1 This embodiment introduces a PTFE high-strength sewing thread sintering structure, which is mainly composed of a sintering box 1, a guide roller 2 and a reinforcement structure.

[0035] The sintering box 1 can be an integrated type or an assembled type, preferably an assembled type. The assembled sintering box 1 is mainly composed of two transverse plates 14 and two longitudinal plates 13, which are fixed by bolts to form a rectangular frame-shaped sintering box 1, that is, the sintering box 1 is open without any box plates in the horizontal length direction. In order to facilitate the splicing of multiple sintering boxes 1, a splicing hole 12 is opened on the top of the longitudinal plate 13, and a splicing column 11 is fixed on the bottom, and the outer diameter of the splicing column 11 matches the inner diameter of the splicing hole 12.

[0036] If only one sintering box 1 is needed, the splicing column 11 at the bottom can serve as a supporting column or be spliced ​​with other supporting frames. If multiple sintering boxes 1 are needed to be spliced, they are spliced ​​together longitudinally, and the splicing column 11 of the upper sintering box 1 is inserted into the splicing hole 12 of the lower sintering box 1 to complete the splicing of the two sintering boxes 1. In the same way, the required number of sintering boxes 1 can be spliced ​​together.

[0037] To facilitate the installation of the heating element, a groove can be opened on the inner side of the longitudinal groove, and the heating element is placed in the groove. The heating element uses an existing heating device, and a heating device with temperature control can be used to facilitate temperature adjustment. At the same time, a temperature sensor can be added in the sintering box 1 to sense the temperature conditions.

[0038] In order to improve the connection stability between the longitudinal plate 13 and the transverse plate 14, a reinforcing plate 15 is fixed to the inner side of the longitudinal plate 13, which can be fixed by welding or screwing. The reinforcing plate 15 is a certain distance away from the top and bottom of the longitudinal plate 13, so that the transverse plate 14 can be placed between the reinforcing plates 15. The reinforcing plate 15 and the transverse plate 14 are connected by bolts. The surface of the reinforcing plate 15 is provided with holes for the bolts to pass through, and the surface of the transverse plate 14 is provided with countersunk holes, which not only facilitates the bolts to pass through, but also facilitates the nuts to be located in the countersunk holes, thereby ensuring the flatness of the outer side of the transverse plate 14.

[0039] It should be emphasized that if the temperatures of the two longitudinally adjacent sintering boxes 1 are inconsistent, the overlapping transverse plates 14 play a role of isolation. If the temperatures of the longitudinally adjacent sintering boxes 1 are consistent, the transverse plates 14 at the overlapping positions can be removed to make the interiors of the two longitudinally adjacent sintering boxes 1 connected. Whether to remove the transverse plates 14 is determined according to actual needs.

[0040] Each sintering box 1 has at least three guide rollers 2, two of which are located outside the sintering box 1 with an open side, and another guide roller 2 is located outside another open side of the sintering box 1. The three guide rollers 2 are distributed in a triangular shape, and the guide rollers 2 can rotate on their own and are installed on the outside of the sintering box 1, that is, the ends of the guide rollers 2 can be connected to the outside of the sintering box through bearings, so as to realize the rotation of the guide rollers 2. Preferably, the three guide rollers 2 are distributed in an isosceles triangle shape to guide the PTFE molded product to move obliquely in the sintering box 1, so that the area of ​​the PTFE molded product located in the sintering box 1 is larger.

[0041] Since the numbers of guide rollers 2 on both sides of the sintering boxes 1 are inconsistent, when they are longitudinally spliced, for the sake of left-right balance and aesthetics, the side of the upper sintering box 1 with two guide rollers 2 and the side of the lower sintering box 1 with one guide roller 2 are located on the same longitudinal line, that is, the numbers of guide rollers 2 in the longitudinal direction of adjacent sintering boxes 1 are inconsistent.

[0042] In addition, when multiple sintering boxes 1 are spliced ​​into one, in order to prevent them from tipping over, a reinforcement structure can be added to the outer surface of the sintering box 1. The reinforcement structure includes a U-shaped frame 31 and a limiting bolt 32. The internal spacing of the U-shaped frame 31 is greater than the height of the multiple sintering boxes 1. A suitable U-shaped frame 31 is selected according to the number of sintering boxes 1. The U-shaped frame 31 is arranged on the side without an opening of the sintering box 1. The two bends of the U-shaped frame 31 are respectively located at the top sintering box 1 and the bottom sintering box 1, that is, the top bend of the U-shaped frame 31 contacts the top of the top sintering box 1, and the bottom bend of the U-shaped frame 31 has a certain spacing from the bottom sintering box 1. The limiting bolt 32 is threadedly connected to the bottom of the U-shaped frame 31 and is arranged longitudinally. By rotating the limiting bolt 32, the end of the limiting bolt 32 can contact the bottom of the bottom sintering box 1, so as to limit and fix the multiple sintering boxes 1. The multiple sintering boxes 1 can be pushed simultaneously by the U-shaped frame 31.

[0043] In this embodiment, three guide rollers 2 are arranged in a triangular distribution on both sides of the sintering box 1 to guide the PTFE molded products to move obliquely, thereby expanding the gaps between the PTFE molded products and the area in the sintering box 1. The volume of the PTFE molded products guided by each sintering box 1 is consistent, and multiple sintering boxes 1 can be spliced ​​according to needs to meet the needs of different production volumes. When multiple sintering boxes 1 are spliced ​​and distributed longitudinally and there are sintering processes with different temperatures, different sintering temperatures are set in different sintering boxes 1 according to the guiding direction of the PTFE molded products to meet the process requirements.

[0044] Example 2

[0045] This embodiment introduces a PTFE high-strength sewing thread sintering structure, which is basically the same as the PTFE high-strength sewing thread sintering structure introduced in Example 1. The difference is that the reinforcement structure of this embodiment adopts an L-shaped frame 41 and a slider 42; the L-shaped frame 41 is arranged on the closed side of the sintering box 1, and the bending part of the L-shaped frame 41 is in contact with the top of the sintering box 1, and the side of the L-shaped frame 41 is detachably connected with the slider 42, that is, the side of the L-shaped frame 41 is provided with a hole, and the slider 42 is located in the hole and can move longitudinally, and the slider 42 can be fixed to the L-shaped frame 41 by bolts, and the side of the slider 42 away from the L-shaped frame 41 is provided with a slot for clamping on the outer periphery of the splicing column 11, and the gap of the slot gradually decreases from the outside to the inside.

[0046] When the top of the L-shaped rod 51 contacts the top of the uppermost sintering box 1, the slider 42 is moved to the bottom of the lowermost sintering box 1, and is pushed laterally so that the slot of the slider 42 is engaged with the splicing column 11 at the bottom of the lowermost sintering box 1. When the position of the slider 42 is adjusted, the slider 42 is fixed to the L-shaped frame 41 by bolts to complete the reinforcement of multiple sintering boxes 1.

[0047] This embodiment has the same beneficial effects as Embodiment 1.

[0048] Example 3

[0049] This embodiment introduces a PTFE high-strength sewing thread sintering structure, which is basically the same as the PTFE high-strength sewing thread sintering structure introduced in Example 1. The difference is that the reinforcement structure of this embodiment uses two L-shaped rods 51; the two L-shaped rods 51 are spliced ​​to form a rectangular frame sleeved on the outside of the box structure formed by multiple sintering boxes 1. The size of the L-shaped rod 51 is determined by the number of sintering boxes 1. The two L-shaped rods 51 can be spliced ​​into a rectangular frame sleeve by snap-fitting and bolting, and sleeved on the outside of the sintering box 1 to limit the multiple sintering boxes 1.

[0050] This embodiment has the same beneficial effects as Embodiment 1.

[0051] The technical scope of the present invention is not limited to the contents described above. Those skilled in the art can make various deformations and modifications to the above embodiments without departing from the technical concept of the present invention, and these deformations and modifications should all fall within the protection scope of the present invention.

Claims

1. A PTFE high-strength sewing thread sintered structure, characterized in that: It includes: At least one sintering box (1) has splicing holes (12) longitudinally opened at the four corners of the top, and splicing columns (11) adapted to the splicing holes (12) are installed at the four corners of the bottom for splicing a plurality of sintering boxes (1); the sintering box (1) is provided with openings on both sides symmetrically arranged along the length direction; At least three guide rollers (2), two of which are movably mounted on one side of the sintering box (1) and close to the opening, and another guide roller (2) is movably mounted on the outside of the other side symmetrically to the sintering box (1). The three guide rollers (2) are distributed in a triangular shape and are used to guide the PTFE wire to move obliquely in the sintering box (1).

2. The PTFE high-strength sewing thread sintered structure according to claim 1, characterized in that: The sintering box (1) comprises two longitudinal plates (13) and two transverse plates (14); the two longitudinal plates (13) and the two transverse plates (14) surround to form a rectangular frame structure and are connected as a whole by bolts; a heating element is installed inside the longitudinal plate (13).

3. The PTFE high-strength sewing thread sintered structure according to claim 2, characterized in that: The inner top and bottom of the longitudinal plate (13) are both fixedly connected with a reinforcing plate (15), and the reinforcing plate (15) is connected to the transverse plate (14) by bolts.

4. The PTFE high-strength sewing thread sintered structure according to claim 2, characterized in that: The splicing holes (12) and the splicing columns (11) are respectively arranged at the top and bottom of the longitudinal plate (13).

5. The PTFE high-strength sewing thread sintered structure according to claim 4, characterized in that: A plurality of sintering boxes (1) are distributed longitudinally, and two sintering boxes (1) adjacent to each other in the longitudinal direction are connected together by splicing columns (11) and splicing holes (12).

6. The PTFE high-strength sewing thread sintered structure according to claim 5, characterized in that: Adjacent sintering boxes (1) have two guide rollers (2) arranged in a staggered manner on one side.

7. The PTFE high-strength sewing thread sintered structure according to claim 1, characterized in that: A reinforcement structure for preventing the sintering boxes (1) from tipping over is arranged outside the sintering boxes (1).

8. The PTFE high-strength sewing thread sintered structure according to claim 7, characterized in that: The reinforcement structure comprises a U-shaped frame (31) and a limiting bolt (32); the U-shaped frame (31) is arranged on a closed side of the sintering box (1), the top bending part of the U-shaped frame (31) is in contact with the top sintering box (1), and the bottom bending part of the U-shaped frame (31) is located below the bottom sintering box (1); the limiting bolt (32) is longitudinally threadedly connected to the bottom bending part of the U-shaped frame (31), and the end of the limiting bolt (32) is in contact with the bottom sintering box (1).

9. The PTFE high-strength sewing thread sintered structure according to claim 7, characterized in that: The reinforcement mechanism comprises an L-shaped frame (41) and a slider (42); the L-shaped frame (41) is arranged on one side of the closed sintering box (1); the bending part of the L-shaped frame (41) is in contact with the top of the sintering box (1); the side of the L-shaped frame (41) is detachably connected with the slider (42); a slot for clamping on the outer periphery of the splicing column (11) is provided on the side of the slider (42) away from the L-shaped frame (41); and the gap of the slot gradually decreases from the outside to the inside.

10. The PTFE high-strength sewing thread sintered structure according to claim 7, characterized in that: The reinforcement mechanism comprises two L-shaped rods (51); the two L-shaped rods (51) are spliced ​​to form a rectangular frame which is sleeved on the outside of the box structure formed by the plurality of sintering boxes (1).

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