Multi-color hot pressing device for TPU (thermoplastic polyurethane)

Abstract

The utility model discloses a multi-layer color hot-pressing device for TPU, and particularly relates to the technical field of TPU processing, the multi-layer color hot-pressing device comprises an operation table, the two sides of the middle part of the operation table are fixedly connected with mounting seats, second mounting plates are arranged in the mounting seats, a heating roller is arranged between the two groups of second mounting plates, and the heating roller is connected with the operation table. Connecting rods are fixedly connected to the top of the second mounting plate, a pressing roller with the same height as the heating roller is mounted between the two sets of connecting rods, an adjusting assembly is arranged at the joint of the second mounting plate and the mounting base, and a limiting assembly is arranged at the position, between the heating roller and the pressing roller, of the top of the operation table. According to the TPU hot-pressing machine, hot-pressing work can be conducted on TPU with different layers by adjusting the heights of the heating roller and the pressing roller, the application range is wider, TPU with different widths can be limited and aligned by adjusting the distance between the two sets of rollers, and the situation that the hot-pressing effect is affected due to the fact that the TPU is not aligned is effectively avoided.

Description

Technical Field

[0001] The utility model relates to the field of TPU processing, in particular to a multi-layer color hot pressing device for TPU. Background Art

[0002] Thermoplastic polyurethane elastomer, also known as thermoplastic polyurethane rubber, abbreviated as TPU, is a (AB)n type block linear polymer, A is a polyester or polyether with a high molecular weight (1000-6000), B is a diol containing 2-12 straight-chain carbon atoms, and the chemical structure between the AB segments is diisocyanate. Thermoplastic polyurethane rubber relies on intermolecular hydrogen bond crosslinking or mild crosslinking between macromolecular chains. These two crosslinking structures are reversible as the temperature rises or falls. In the molten state or solution state, the intermolecular force is weakened, and after cooling or solvent evaporation, there is a strong intermolecular force connecting together, restoring the original solid performance. Typical TPUs include spandex, etc.

[0003] During the processing of TPU, it needs to be hot pressed. However, most of the current hot pressing devices have a fixed structure, and the height of the hot pressing roller cannot be adjusted, so it is impossible to hot press TPU of different thicknesses. In addition, due to the lack of a limiting mechanism, multi-layer TPU may be misaligned during the retraction and release process, thereby affecting the hot pressing effect. Utility Model Content

[0004] Technical problems solved: It is not suitable for TPU of different sizes and thicknesses, and misalignment during the retraction and release process will affect the hot pressing effect.

[0005] In view of the deficiencies in the prior art, the utility model provides a multi-layer color hot pressing device for TPU, which solves the problems mentioned in the background technology.

[0006] Technical solution:

[0007] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0008] A multi-layer color hot pressing device for TPU comprises an operating table, first mounting plates are fixedly connected to both sides of the top of the operating table, a winding roller and an unwinding roller are respectively installed between each two groups of the first mounting plates, a motor is installed at one end of the winding roller and the unwinding roller, mounting seats are fixedly connected to both sides of the middle of the operating table, a second mounting plate is arranged inside the mounting seat, a heating roller is installed between the two groups of the second mounting plates, a connecting rod is fixedly connected to the top of the second mounting plate, a pressure roller with the same height as the heating roller is installed between the two groups of the connecting rods, an adjustment component is arranged at the connection between the second mounting plate and the mounting seat, and a limit component is arranged on the top of the operating table between the heating roller and the pressure roller.

[0009] In one possible implementation, the adjustment assembly includes a mounting groove, a mounting hole, a through hole and a mounting rod, the mounting groove passes through a side of the mounting seat close to the operating table, the second mounting plate is slidably connected to the mounting groove, the mounting holes are arranged in several groups and pass through the second mounting plate, the through hole passes through an inner wall of one side of the mounting groove, and the mounting rod is movably connected to the through hole and is adapted to the size of the mounting hole.

[0010] In a possible implementation, the adjustment assembly also includes a first slide groove, a first slider, a first spring and a pull block, the first slide groove is opened on the inner wall of the through hole, the first slider is fixedly connected to the outer periphery of the mounting rod and is slidably connected to the first slide groove, the first spring is sleeved on the outer periphery of the mounting rod and its two ends are respectively fixedly connected to one side of the first slider and the inner wall of one side of the first slide groove, and the pull block is fixedly connected to the outer periphery of the mounting rod.

[0011] In one possible implementation, the limiting assembly includes a vertical rod, a horizontal plate, a roller and an adjustment slot, wherein the adjustment slot is opened on the top of the operating table, the vertical rod is slidably connected to the adjustment slot, the horizontal plate is fixedly connected to the top and bottom of one side of the vertical rod, and the roller is rotatably installed between the two sets of horizontal plates.

[0012] In a possible implementation, the limiting assembly also includes a fixing hole, a mounting block and a fixing rod. The fixing holes are provided in several groups and are opened on both sides of the adjustment groove. The mounting block is in a U-shape and is slidably connected to the side of the vertical rod away from the roller. The fixing rod is fixedly connected to the bottom of the mounting block and is adapted to the size of the fixing hole.

[0013] In a possible implementation, the limiting assembly also includes a second slide groove, a second slider and a second spring, the second slide groove is opened on both side surfaces of the vertical rod, the second slider is fixedly connected to the inner side of the mounting block and is slidably connected to the second slide groove, and the second spring is fixedly installed inside the second slide groove and its two ends are respectively fixedly connected to the top of the second slider and the inner wall of the top of the second slide groove.

[0014] Beneficial effects:

[0015] First, by providing an adjustment component, the pull block is pulled outward to drive the mounting rod to move outward and squeeze the first spring through the first slider. When the mounting rod is moved out of the mounting hole, the second mounting plate is slid up and down along the mounting groove to drive the heating roller and the pressure roller to move up and down synchronously. When the spacing between the heating roller and the pressure roller and the operating table matches the thickness of the TPU, the pull block is released, the first spring rebounds and drives the mounting rod to move inward through the first slider. When the mounting rod is inserted into the mounting hole at the current position, the second mounting plate can be fixed at the current height. This design enables the device to perform hot pressing work on TPU with different layers, and has a wider range of applications.

[0016] Secondly, by setting a limited position component, the mounting block is pulled upward to drive the second slider to slide upward along the second slide groove and squeeze the second spring. When the fixed rod moves upward with the mounting block to move out of the fixed hole, the vertical rod is slid along the adjustment groove to drive the roller to move synchronously through the cross plate. When the spacing between the two groups of rollers matches the width of the TPU, the mounting block is released, the second spring rebounds and drives the mounting block to move downward through the second slider. When the fixed rod moves downward with the mounting block to be inserted into the fixed hole at the current position, the vertical rod can be fixed at the current position. This design enables the device to limit and align TPUs of different widths, effectively avoiding the impact of TPU misalignment on the hot pressing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the adjustment component of the utility model;

[0020] Figure 3 for Figure 1 Enlarged view of point A in the middle;

[0021] Figure 4 It is a schematic diagram of the structure of the limit assembly of the utility model.

[0022] Description of reference numerals:

[0023] 1. Operating table; 2. First mounting plate; 3. Winding roller; 4. Unwinding roller; 5. Motor; 6. Mounting seat; 7. Second mounting plate; 8. Heating roller; 9. Connecting rod; 10. Pressing roller; 11. Adjusting assembly; 111. Mounting slot; 112. Mounting hole; 113. Through hole; 114. Mounting rod; 115. First slide slot; 116. First slider; 117. First spring; 118. Pulling block; 12. Limiting assembly; 121. Vertical rod; 122. Horizontal plate; 123. Roller; 124. Adjusting slot; 125. Fixing hole; 126. Mounting block; 127. Fixing rod; 128. Second slide slot; 129. Second slider; 1210. Second spring. DETAILED DESCRIPTION

[0024] The embodiments of the present application solve the problems in the prior art by providing a multi-layer color hot pressing device for TPU.

[0025] The technical solution in the embodiment of the present application is to solve the above problems, and the overall idea is as follows:

[0026] The specific structure of this embodiment is as follows: Figures 1 to 4 As shown, a multi-layer color hot pressing device for TPU includes an operating table 1, first mounting plates 2 are fixedly connected to both sides of the top of the operating table 1, a winding roller 3 and an unwinding roller 4 are respectively installed between each two groups of first mounting plates 2, and a motor 5 is installed at one end of the winding roller 3 and the unwinding roller 4, mounting seats 6 are fixedly connected to both sides of the middle of the operating table 1, a second mounting plate 7 is arranged inside the mounting seat 6, a heating roller 8 is installed between the two groups of second mounting plates 7, a connecting rod 9 is fixedly connected to the top of the second mounting plate 7, a pressing roller 10 with the same height as the heating roller 8 is installed between the two groups of connecting rods 9, an adjusting component 11 is arranged at the connection between the second mounting plate 7 and the mounting seat 6, and a limiting component 12 is arranged on the top of the operating table 1 between the heating roller 8 and the pressing roller 10.

[0027] In some examples, the adjustment component 11 includes a mounting groove 111, a mounting hole 112, a through hole 113 and a mounting rod 114. The mounting groove 111 passes through the side of the mounting seat 6 close to the operating table 1, and the second mounting plate 7 is slidably connected to the mounting groove 111. The mounting holes 112 are arranged in several groups and pass through the second mounting plate 7. The through hole 113 passes through the inner wall of one side of the mounting groove 111. The mounting rod 114 is movably connected to the through hole 113 and is adapted to the size of the mounting hole 112. The mounting rod 114 is removed from the mounting hole 112, and then the second mounting plate 7 is slid along the mounting groove 111 to adjust the height of the heating roller 8 and the pressing roller 10, so that it can perform hot pressing on TPU with different layers.

[0028] In some examples, the adjustment component 11 also includes a first slide groove 115, a first slider 116, a first spring 117 and a pull block 118. The first slide groove 115 is opened on the inner wall of the through hole 113, the first slider 116 is fixedly connected to the outer periphery of the mounting rod 114 and is slidably connected to the first slide groove 115, the first spring 117 is sleeved on the outer periphery of the mounting rod 114 and its two ends are respectively fixedly connected to one side of the first slider 116 and the inner wall of one side of the first slide groove 115, the pull block 118 is fixedly connected to the outer periphery of the mounting rod 114, and pulling the pull block 118 outward can drive the mounting rod 114 to move outward and squeeze the first spring 117 through the first slider 116, and releasing the pull block 118 and the first spring 117 rebounding can drive the mounting rod 114 to move inward through the first slider 116.

[0029] In some examples, the limiting assembly 12 includes a vertical rod 121, a horizontal plate 122, a roller 123 and an adjustment slot 124. The adjustment slot 124 is opened on the top of the operating table 1, the vertical rod 121 is slidably connected to the adjustment slot 124, the horizontal plate 122 is fixedly connected to the top and bottom of one side of the vertical rod 121, and the roller 123 is rotatably installed between the two groups of horizontal plates 122. Sliding the vertical rod 121 along the adjustment slot 124 can drive the horizontal plate 122 and the roller 123 to move synchronously, thereby limiting and aligning TPUs of different widths to avoid misalignment of multiple layers of TPU affecting the hot pressing work.

[0030] In some examples, the limiting assembly 12 also includes a fixing hole 125, a mounting block 126 and a fixing rod 127. The fixing holes 125 are provided in several groups and are opened on both sides of the adjustment slot 124. The mounting block 126 is in a U-shape and is slidably connected to the side of the vertical rod 121 away from the roller 123. The fixing rod 127 is fixedly connected to the bottom of the mounting block 126 and is adapted to the size of the fixing hole 125. The position of the vertical rod 121 can be adjusted by moving the fixing rod 127 out of the fixing hole 125, and the vertical rod 121 can be fixed at the current position by inserting the fixing rod 127 into the fixing hole 125.

[0031] In some examples, the limiting assembly 12 also includes a second slide groove 128, a second slider 129 and a second spring 1210. The second slide groove 128 is opened on the two side surfaces of the vertical rod 121. The second slider 129 is fixedly connected to the inner side of the mounting block 126 and is slidably connected to the second slide groove 128. The second spring 1210 is fixedly installed inside the second slide groove 128 and its two ends are respectively fixedly connected to the top of the second slider 129 and the inner wall of the top of the second slide groove 128. Pulling the mounting block 126 upward can drive the second slider 129 to slide upward along the second slide groove 128 and squeeze the second spring 1210. Release the mounting block 126, and the second spring 1210 rebounds to drive the mounting block 126 to move downward through the second slider 129.

[0032] In a specific application scenario, firstly, the winding roller 3 and the unwinding roller 4 are installed on the inner side of the first mounting plate 2 and connected to the driving shaft of the motor 5. Then, the TPU to be hot-pressed is passed under the pressing roller 10 and the heating roller 8. At this time, the motor 5 is started to drive the winding roller 3 and the unwinding roller 4 to rotate to start the hot-pressing work. During the hot-pressing process, the roller 123 will limit the TPU so that the multi-layer TPU can be aligned up and down. When hot-pressing work is required for TPUs of different widths, the installation roller 123 is pulled upward. The block 126 drives the second slider 129 to slide upward along the second slide groove 128 and squeeze the second spring 1210. When the fixing rod 127 moves upward with the mounting block 126 to move out of the fixing hole 125, the vertical rod 121 is slid along the adjustment groove 124 to drive the roller 123 to move synchronously through the cross plate 122. When the spacing between the two groups of rollers 123 matches the width of the TPU, the mounting block 126 is released, and the second spring 1210 rebounds and drives the mounting rod 127 through the second slider 129. The mounting block 126 moves downward, and when the fixing rod 127 moves downward with the mounting block 126 to be inserted into the fixing hole 125 at the current position, the vertical rod 121 can be fixed at the current position. At this time, the TPU of the new width can be limited and aligned. When hot pressing is required for TPU of different layers, the pull block 118 is pulled outward to drive the mounting rod 114 to move outward and squeeze the first spring 117 through the first slider 116. When the mounting rod 114 is moved out of the mounting hole 112, the vertical rod 121 is fixed at the current position. The second mounting plate 7 is slid up and down along the mounting groove 111 to drive the heating roller 8 and the pressure roller 10 to move up and down synchronously. When the distance between the heating roller 8 and the pressure roller 10 and the operating table 1 matches the thickness of the TPU, the pull block 118 is released, the first spring 117 rebounds and drives the mounting rod 114 to move inward through the first slider 116. When the mounting rod 114 is inserted into the mounting hole 112 at the current position, the second mounting plate 7 can be fixed at the current height. At this time, the new layer of TPU can be hot-pressed.

[0033] By adopting the above technical solution: not only can the height of the heating roller and the pressure roller be adjusted to enable hot pressing of TPU with different numbers of layers, which has a wider range of applications, but also the spacing between the two sets of rollers can be adjusted to enable limited alignment of TPU with different widths, effectively avoiding the influence of misalignment of TPU on the hot pressing effect.

[0034] Finally, it should be noted that: Obviously, the above embodiments are only examples for clearly explaining the present invention, and are not intended to limit the implementation methods. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from them are still within the scope of protection of the present invention.

Claims

1. A multi-layer color hot pressing device for TPU, comprising an operating table (1), characterized in that: The top of the operating table (1) is fixedly connected to first mounting plates (2) on both sides, a winding roller (3) and an unwinding roller (4) are respectively installed between each two groups of the first mounting plates (2), and a motor (5) is installed at one end of the winding roller (3) and the unwinding roller (4). The middle of the operating table (1) is fixedly connected to mounting seats (6), and a second mounting plate (7) is arranged inside the mounting seat (6). A heating roller (8) is installed between the two groups of the second mounting plates (7), a connecting rod (9) is fixedly connected to the top of the second mounting plate (7), and a pressure roller (10) with the same height as the heating roller (8) is installed between the two groups of the connecting rods (9). An adjusting component (11) is arranged at the connection between the second mounting plate (7) and the mounting seat (6), and a limiting component (12) is arranged on the top of the operating table (1) between the heating roller (8) and the pressure roller (10).

2. A multi-layer color hot pressing device for TPU according to claim 1, characterized in that: The adjustment assembly (11) comprises a mounting groove (111), a mounting hole (112), a through hole (113) and a mounting rod (114); the mounting groove (111) passes through a side of the mounting seat (6) close to the operating table (1); the second mounting plate (7) is slidably connected to the mounting groove (111); the mounting holes (112) are provided in a plurality of groups and pass through the second mounting plate (7); the through hole (113) passes through an inner wall of one side of the mounting groove (111); and the mounting rod (114) is movably connected to the through hole (113) and is adapted to the size of the mounting hole (112).

3. A multi-layer color hot pressing device for TPU according to claim 2, characterized in that: The adjustment component (11) further comprises a first slide groove (115), a first slider (116), a first spring (117) and a pull block (118); the first slide groove (115) is provided on the inner wall of the through hole (113); the first slider (116) is fixedly connected to the outer periphery of the mounting rod (114) and is slidably connected to the first slide groove (115); the first spring (117) is sleeved on the outer periphery of the mounting rod (114) and its two ends are respectively fixedly connected to one side of the first slider (116) and the inner wall of one side of the first slide groove (115); the pull block (118) is fixedly connected to the outer periphery of the mounting rod (114).

4. A multi-layer color hot pressing device for TPU according to claim 1, characterized in that: The limiting assembly (12) comprises a vertical rod (121), a horizontal plate (122), a roller (123) and an adjustment slot (124); the adjustment slot (124) is arranged on the top of the operating table (1); the vertical rod (121) is slidably connected to the adjustment slot (124); the horizontal plate (122) is fixedly connected to the top and bottom of one side of the vertical rod (121); and the roller (123) is rotatably installed between two sets of horizontal plates (122).

5. A multi-layer color hot pressing device for TPU according to claim 4, characterized in that: The limiting assembly (12) further comprises a fixing hole (125), a mounting block (126) and a fixing rod (127); the fixing holes (125) are provided in a plurality of groups and are opened on both sides of the adjusting groove (124); the mounting block (126) is in a U-shape and is slidably connected to a side of the vertical rod (121) away from the roller (123); and the fixing rod (127) is fixedly connected to the bottom of the mounting block (126) and is adapted to the size of the fixing hole (125).

6. A multi-layer color hot pressing device for TPU according to claim 5, characterized in that: The limiting assembly (12) also includes a second slide groove (128), a second slider (129) and a second spring (1210), wherein the second slide groove (128) is provided on both side surfaces of the vertical rod (121), the second slider (129) is fixedly connected to the inner side of the mounting block (126) and is slidably connected to the second slide groove (128), and the second spring (1210) is fixedly installed inside the second slide groove (128) and its two ends are respectively fixedly connected to the top of the second slider (129) and the inner wall of the top of the second slide groove (128).

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