Temperature gradient balancing device for stretching section of teflon tape

Abstract

The temperature gradient balancing device comprises a heating box, a plurality of heating chambers and placing grooves are dug in the heating box at equal intervals, an adjusting mechanism is arranged on the left side of the rear surface of an inner cavity of the heating chamber, and conveying mechanisms are symmetrically arranged on the front surface of the adjusting mechanism; a conveying mechanism is connected to one side of the adjusting mechanism, a supplying and conveying mechanism is connected to one side of the conveying mechanism, the supplying and conveying mechanism is arranged at the top of the heating box, and a plurality of stretching rollers are arranged on the rear surface of an inner cavity of the heating box. The temperatures of different stages can be accurately controlled through segmented heating, so that the material is heated more uniformly, thinning, tearing or molecular chain breakage caused by too high temperature or too fast stretching of a local area is prevented, stress concentration is reduced, stress can be dispersed through gradual stretching, and the risk of edge cracking or uneven thickness is reduced.

Description

Technical Field

[0001] This utility model relates to the technical field of polymer material processing equipment, specifically to a temperature gradient balancing device for the stretching section of raw material strip. Background Technology

[0002] PTFE tape is a commonly used auxiliary material in liquid pipeline installation. It is used at pipe joints to enhance the airtightness of the pipe joints. PTFE tape is a novel and ideal sealing material. Due to its non-toxicity, odorlessness, excellent sealing, insulation, and corrosion resistance, it is widely used in water treatment, natural gas, chemical, plastics, and electronic engineering fields.

[0003] For example, an existing Chinese authorized patent (publication number: CN206446009U) discloses a heating device for a raw material strip stretching machine, including a machine body. A heating device is installed at the bottom of the inner cavity of the machine body. A heating fan is installed on the right side of the heating device. A conveying pipe is installed at the top of the heating device. A first conveying pipe is installed on the right side of the conveying pipe, and a first heating plate is installed at the top of the first conveying pipe. This heating device of the raw material strip stretching machine generates heat, which is then conveyed to the first and second conveying pipes via the conveying pipes. The heat is evenly distributed to the interiors of the first and second heating plates through through-holes in the conveying pipes. Hot air is generated by the heating fan and conveyed to the conveying pipes through the first pipe, which accelerates the heat transmission speed and allows the first and second heating plates to be heated more quickly and evenly, thus increasing heating efficiency.

[0004] The heating device of the raw material strip stretching machine designed above has the following disadvantages in actual use: the structure does not perform segmented processing of heating and stretching of the raw material strip, which causes the raw material strip to break when stretched directly after heating.

[0005] In view of this, a temperature gradient balancing device for the stretching section of raw material strip is provided to overcome the above-mentioned defects. Utility Model Content

[0006] In response to the problems in related technologies, this utility model proposes a temperature gradient balancing device for the stretching section of raw material strip to overcome the aforementioned technical problems existing in the prior art.

[0007] Therefore, the specific technical solution adopted by this utility model is as follows:

[0008] A temperature gradient balancing device for the stretching section of raw material strip includes a heating box. Multiple heating chambers and placement slots are equidistantly excavated inside the heating box. An adjustment mechanism is provided on the left side of the rear surface of the inner cavity of the heating box. A transmission mechanism is symmetrically arranged on the front surface of the adjustment mechanism. A supply mechanism is connected to one side of the transmission mechanism and is located on the top of the heating box. Multiple stretching rollers are provided on the rear surface of the inner cavity of the heating box.

[0009] Preferably, the adjustment mechanism includes an adjustment groove, a bidirectional adjustment screw, adjustment blocks, and a self-locking motor. The adjustment groove is excavated on the left side of the rear surface of the heating chamber. A bidirectional adjustment screw is provided at the bottom of the inner cavity of the adjustment groove. Multiple adjustment blocks are connected to the outer wall of the bidirectional adjustment screw via reverse threads. A self-locking motor is connected to the top of the bidirectional adjustment screw.

[0010] Preferably, the self-locking motor is located at the top of the inner cavity of the adjustment slot, and the self-locking motor is electrically connected to an external switch.

[0011] Preferably, the transmission mechanism includes a dual-pass pipe, a first flexible hose, and a conveying head. The dual-pass pipe is disposed in the placement groove, and a plurality of first flexible hoses are connected to the right side of the dual-pass pipe. The first flexible hoses extend into the heating chamber and are connected to the conveying head, which is disposed on the front surface of the adjusting block.

[0012] Preferably, the supply mechanism includes a hot air blower body and a second hose. The hot air blower body is equidistantly arranged on the top surface of the heating box. The left side of the hot air blower body is connected to the second hose, which extends into the placement slot and is connected to the double-pass pipe.

[0013] This utility model has the following beneficial effects:

[0014] Compared with existing technologies, this raw material conveyor belt stretching section temperature gradient balancing device:

[0015] The system employs multiple mechanisms, including adjustment, transmission, and supply mechanisms, working in concert.

[0016] 1. Avoid local overheating or overstretching: Segmented heating can precisely control the temperature at different stages, making the material heat more evenly and preventing local areas from thinning, tearing or breaking of molecular chains due to excessive temperature or excessive stretching.

[0017] 2. Reduce stress concentration: Gradual stretching can disperse stress and reduce the risk of edge cracking or uneven thickness. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a view of the heating chamber of the temperature gradient balancing device for the stretching section of the raw material strip according to an embodiment of the present invention;

[0020] Figure 2 This is an internal view of the heating chamber and placement trough of the raw material strip stretching section temperature gradient balancing device according to an embodiment of the present utility model;

[0021] Figure 3 This is a structural diagram of the adjustment mechanism of the temperature gradient balancing device for the stretching section of the raw material strip according to an embodiment of the present utility model;

[0022] Figure 4 This is a structural diagram of the transmission mechanism and the supply mechanism of the raw material strip stretching section temperature gradient balancing device according to an embodiment of the present utility model.

[0023] In the picture:

[0024] 1. Heating box; 2. Heating chamber; 3. Placement slot; 4. Adjustment mechanism; 5. Transmission mechanism; 6. Supply mechanism; 7. Tension roller; 8. Adjustment slot; 9. Two-way adjustment screw; 10. Adjustment block; 11. Self-locking motor; 12. Double-pass pipe; 13. First flexible hose; 14. Conveyor head; 15. Hot air blower body; 16. Second flexible hose. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate this utility model, but are not intended to limit its scope.

[0026] In the description of this utility model, it should be noted that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "inner", "outer", 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.

[0027] 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 fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0028] Example 1

[0029] like Figure 1-4 As shown, the raw material strip stretching section temperature gradient balancing device according to an embodiment of the present invention includes a heating box 1. The heating box 1 has multiple heating chambers 2 and placement slots 3 equidistantly excavated inside. An adjustment mechanism 4 is provided on the left side of the rear surface of the inner cavity of the heating chamber 2. A transmission mechanism 5 is symmetrically arranged on the front surface of the adjustment mechanism 4. A supply mechanism 6 is connected to one side of the transmission mechanism 5 and the supply mechanism 6 is located on the top of the heating box 1. Multiple stretching rollers 7 are provided on the rear surface of the inner cavity of the heating chamber 2.

[0030] In this embodiment, the raw material strip enters the heating chamber 3 laterally from the left and is sequentially placed on the outer wall of multiple stretching rollers 7. It is then stretched and discharged from the right side. First, the adjustment mechanism 4 is activated by an external switch. The adjustment mechanism 4 adjusts the spacing between the internal components of the transmission mechanism 5. Next, the supply mechanism 6 delivers hot air to the raw material strip on the stretching rollers 7 through the transmission mechanism 5 and heats the raw material strip sequentially. The heating chamber 2 near the inlet is the preheating zone with a lower temperature to prevent the material from deforming due to sudden heating. The middle heating chamber 2 is the stretching zone with the highest temperature to ensure that the material is fully softened. The heating chamber 2 near the outlet is the shaping zone after stretching with a slightly lower temperature to stabilize the material structure.

[0031] Example 2

[0032] The adjustment mechanism 4 includes an adjustment groove 8, a bidirectional adjustment screw 9, adjustment blocks 10, and a self-locking motor 11. The adjustment groove 8 is excavated on the left side of the rear surface of the inner cavity of the heating chamber 2. The bidirectional adjustment screw 9 is provided at the bottom of the inner cavity of the adjustment groove 8. Multiple adjustment blocks 10 are connected to the outer wall of the bidirectional adjustment screw 9 by reverse thread. The self-locking motor 11 is connected to the top of the bidirectional adjustment screw 9. The self-locking motor 11 is located at the top of the inner cavity of the adjustment groove 8 and is electrically connected to an external switch.

[0033] The transmission mechanism 5 includes a double-through pipe 12, a first flexible hose 13 and a conveying head 14. The double-through pipe 12 is disposed in the placement groove 3. Multiple first flexible hoses 13 are connected to the right side of the double-through pipe 12. The first flexible hoses 13 extend into the heating chamber 2 and are connected to the conveying head 14. The conveying head 14 is disposed on the front surface of the adjusting block 10.

[0034] The supply mechanism 6 includes a hot air blower body 15 and a second hose 16. The hot air blower body 15 is equidistantly arranged on the top surface of the heating box 1. The left side of the hot air blower body 15 is connected to the second hose 16, and the second hose 16 extends into the placement groove 3 and is connected to the double pipe 12.

[0035] Based on Example 1, the structure and function of the device are further optimized. A long slot is dug at the far right of the inner cavity of the heating box 1, which is the outlet of the raw material belt. An adjustable air-cooling device is installed in the long slot. The air volume is controlled by the damper driven by the servo motor. The adjustable air-cooling device can avoid the concentration of internal stress caused by local sudden cooling and prevent the material from warping or cracking later.

[0036] In summary, with the help of the above-mentioned technical solution of this utility model, when this device is in use, the raw material belt enters the heating chamber 3 laterally from the left side and is sequentially placed on the outer wall of multiple stretching rollers 7. It is then stretched and discharged from the right side. First, the self-locking motor 11 is started by an external switch. The self-locking motor 11 drives the bidirectional adjusting screw 9 to rotate. The outer wall of the bidirectional adjusting screw 9 is adjusted in a similar direction by multiple adjusting blocks 10 through a reverse thread. The adjusting blocks 10 are adjusted by the conveying head 14 fixedly connected to the front side, so that the distance between the conveying head 14 and the raw material belt is adjusted. Next, the hot air blower body 15 is started by an external switch. The hot air blower body 15 transmits hot air to the raw material belt on the stretching rollers 7 through the second hose 16, the double pipe 12, the first hose 13 and the conveying head 14, and heats the raw material belt sequentially. The heating chamber 2 near the inlet is the preheating zone, the middle heating chamber 2 is the stretching zone, and the heating chamber 2 near the outlet is the shaping zone after stretching.

[0037] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A temperature gradient balancing device for the stretching section of raw material strip, characterized in that, The heating chamber (1) includes a heating box (1), which has multiple heating chambers (2) and placement slots (3) equidistantly arranged inside. An adjustment mechanism (4) is provided on the left side of the rear surface of the inner cavity of the heating chamber (2), and a transmission mechanism (5) is symmetrically arranged on the front surface of the adjustment mechanism (4). A supply mechanism (6) is connected to one side of the transmission mechanism (5), and the supply mechanism (6) is located on the top of the heating box (1). Multiple stretching rollers (7) are provided on the rear surface of the inner cavity of the heating chamber (2).

2. The temperature gradient balancing device for the stretching section of raw material strip according to claim 1, characterized in that, The adjustment mechanism (4) includes an adjustment groove (8), a bidirectional adjustment screw (9), an adjustment block (10), and a self-locking motor (11). The adjustment groove (8) is carved into the left side of the rear surface of the inner cavity of the heating chamber (2). The bidirectional adjustment screw (9) is provided at the bottom of the inner cavity of the adjustment groove (8). Multiple adjustment blocks (10) are connected to the outer wall of the bidirectional adjustment screw (9) by reverse thread. The self-locking motor (11) is connected to the top of the bidirectional adjustment screw (9).

3. The temperature gradient balancing device for the stretching section of raw material strip according to claim 2, characterized in that, The self-locking motor (11) is located at the top of the inner cavity of the adjustment groove (8), and the self-locking motor (11) is electrically connected to an external switch.

4. The temperature gradient balancing device for the stretching section of raw material strip according to claim 3, characterized in that, The transmission mechanism (5) includes a double-through pipe (12), a first flexible hose (13) and a conveying head (14). The double-through pipe (12) is disposed in the placement groove (3). Multiple first flexible hoses (13) are connected to the right side of the double-through pipe (12). The first flexible hoses (13) extend into the heating chamber (2) and are connected to the conveying head (14). The conveying head (14) is disposed on the front surface of the adjusting block (10).

5. The temperature gradient balancing device for the stretching section of raw material strip according to claim 4, characterized in that, The supply mechanism (6) includes a hot air blower body (15) and a second hose (16). The hot air blower body (15) is equidistantly arranged on the top surface of the heating box (1). The left side of the hot air blower body (15) is connected to the second hose (16), and the second hose (16) extends into the placement groove (3) and is connected to the double pipe (12).

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