A knurling device for retroreflective material

Abstract

The utility model discloses a kind of embossing device for light-reflecting material, including hot press, the hot press includes the base of heating device being equipped with bottom and the pressing plate being lifted and connected above base, the pressing plate bottom is equipped with embossing, the front and rear ends of the base are respectively equipped with unwinding shaft and winding shaft, the left and right sides of the base are respectively rotatably connected with driving shaft and passive shaft, the bottom of the base is also equipped with two guide shafts, the driving shaft, passive shaft and two guide shafts outside sleeve are placed with thickened PE film, the light-reflecting material to be embossed is wound on unwinding shaft and its end portion is wound to winding shaft through PE film layer and base, the utility model is through the setting PE film that circulates and rolls on base, avoid the problem that material is bonded in pressing plate bottom caused by light-reflecting material directly with pressing plate contact in embossing process, improve embossing quality.

Description

Technical Field

[0001] This utility model relates to an embossing device for reflective materials. Background Technology

[0002] In existing technologies, reflective materials such as reflective stickers are generally embossed using a hot press. The specific working principle is as follows: the two ends of the reflective material are placed on the unwinding and rewinding shafts, respectively. The base or pressure plate of the hot press is equipped with a heating device and corresponding embossing. The reflective material passes over the base, and the pressure plate descends to heat and emboss the reflective material. This type of hot press has a defect: after the reflective material is embossed with texture, it often adheres to the embossed surface of the base or pressure plate. At this time, the rewinding shaft will cause the texture of the reflective material to deform, and in severe cases, it may even tear the reflective material. Utility Model Content

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide an embossing device that can prevent reflective materials from sticking to the bottom of the pressure plate after embossing is completed.

[0004] The technical solution of this utility model is: an embossing device for reflective materials, including a hot press. The hot press includes a base with a heating device at the bottom and a pressure plate that is lifted and connected above the base. The bottom of the pressure plate is embossed. The front and rear ends of the base are respectively provided with an unwinding shaft and a rewinding shaft. The left and right sides of the base are respectively rotatably connected with an active shaft and a passive shaft. The bottom of the base is also provided with two guide shafts. The active shaft, the passive shaft and the two guide shafts are covered with a thickened PE film. The reflective material to be embossed is wound on an unwinding shaft, with its ends wound onto a take-up shaft between a PE film layer and a base. The portion of the reflective material on the base is set tightly against the base.

[0005] Preferably, the thickness of the PE film is 0.5 mm.

[0006] Furthermore, a gap is maintained between the PE film located below the base and the bottom of the heating device.

[0007] Furthermore, a pair of connecting brackets corresponding to the active shaft and the passive shaft are respectively provided on both sides of the base, and the active shaft and the passive shaft are rotatably connected to the two pairs of connecting brackets respectively.

[0008] Furthermore, a motor frame is provided on the left rear end of the base, and a first drive motor is fixed on the motor frame. The output shaft of the first drive motor is connected to the end of the drive shaft.

[0009] Furthermore, the unwinding shaft and the rewinding shaft are independently arranged at the front and rear ends of the base, respectively.

[0010] Furthermore, the unwinding shaft and the winding shaft are rotatably connected to two pairs of winding shaft seats, and a second drive motor is provided on one side of the winding shaft seat corresponding to the winding shaft. The output shaft of the second drive motor is connected to one end of the winding shaft.

[0011] Furthermore, a roller is rotatably connected to each of the front and rear ends of the base, and the two rollers abut against the reflective material at the front and rear ends of the base, respectively.

[0012] Furthermore, a guide post is provided at each of the four corners of the top of the base, and a guide hole is provided at each of the four corners of the pressure plate. Each guide post passes through the corresponding guide hole, and a bracket is fixed between the tops of each guide post. A cylinder is fixed in the middle of the bracket, and the piston rod of the cylinder is connected to the pressure plate.

[0013] Furthermore, the base is also provided with two pairs of support legs at its bottom.

[0014] The beneficial effects of this invention are as follows: by setting a PE film that circulates and rolls on the base, the problem of material sticking to the bottom of the pressure plate caused by direct contact between the reflective material and the pressure plate during the embossing process is avoided, thus improving the embossing quality; at the same time, the PE film is elastic and can adhere well to the surface of the reflective material without affecting the embossing effect; in addition, the PE film can automatically detach from the reflective material and cool down after embossing is completed, which facilitates continuous embossing operations and improves work efficiency. Attached Figure Description

[0015] Figure 1 This is a top view of the present invention after the bracket and pressure plate have been removed; Figure 2 This is a cross-sectional view of the present invention.

[0016] In the figure: heating device 1, base 2, pressure plate 3, unwinding shaft 4, winding shaft 5, drive shaft 6, passive shaft 7, guide shaft 8, PE film 9, reflective material 10, first drive motor 11, second drive motor 12, roller body 13, guide column 14, bracket 15, cylinder 16, support leg 17. Detailed Implementation

[0017] The technical solution of this utility model will be further described in detail below through embodiments and in conjunction with the accompanying drawings.

[0018] Combination Figure 1 and Figure 2As shown, an embossing device for reflective materials includes a hot press. The hot press includes a base 2 with a heating device 1 at the bottom and a pressure plate 3 that is lifted and connected above the base 2. The bottom of the pressure plate 3 is embossed. The front and rear ends of the base 2 are respectively provided with an unwinding shaft 4 and a rewinding shaft 5. The left and right sides of the base 2 are respectively rotatably connected with an active shaft 6 and a passive shaft 7. The bottom of the base 2 is also provided with two guide shafts 8. A thickened PE film 9 is sleeved on the outside of the active shaft 6, the passive shaft 7 and the two guide shafts 8. The reflective material 10 to be embossed is wound on the unwinding shaft 4 and its end is wound onto the take-up shaft 5 through the PE film 9 layer and the base 2. The part of the reflective material 10 on the base 2 is set in close contact with the base 2.

[0019] The working principle of the above structure is as follows: The reflective material 10 is a sheet material with a certain hardness, such as reflective sticker. The reflective material 10 is wound on the unwinding shaft 4, and its end is wound onto the take-up shaft 5 through the PE film 9 layer and the base 2. The heating device 1 on the base 2 heats the reflective material 10 on the base 2. During this heating process, the PE layer above the reflective material 10 maintains a distance of 0.5-1cm from the reflective material 10 to avoid deformation caused by prolonged direct heating of the PE film 9. After the reflective material 10 is heated to a suitable temperature, the pressure plate 3 is lowered. Because the PE film 9 is elastic, the PE film 9... The film 9 is pressed tightly against the top surface of the reflective material 10 by the pressure plate 3, and the pressure plate 3 embosses the reflective material 10. After embossing is completed, the pressure plate 3 is raised and reset, and the drive shaft 6 drives the PE film 9 to roll a distance corresponding to the width of the reflective material 10, that is, the PE film 9 is separated from the reflective material 10. The part of the PE film 9 that was previously in contact with the reflective material 10 rolls to the top of the base 2 for cooling, while the embossed reflective material 10 is moved out of the base 2 by the drive of the take-up shaft 5. The new reflective material 10 to be embossed moves between the PE film 9 and the base 2, and the above operation is repeated to continuously emboss the reflective material 10.

[0020] The beneficial effects of the above structure are as follows: by setting the PE film 9 to circulate and roll on the base 2, the problem of material sticking to the bottom of the pressure plate 3 caused by direct contact between the reflective material 10 and the pressure plate 3 during the embossing process is avoided, thus improving the embossing quality; at the same time, the PE film 9 is elastic and can adhere well to the surface of the reflective material 10 without affecting the embossing effect; in addition, the PE film 9 can automatically detach from the reflective material 10 and cool down after embossing is completed, which facilitates continuous embossing operation and improves work efficiency.

[0021] Preferably, the PE film 9 has a thickness of 0.5 mm. If the PE film 9 is too thick, the embossing of the reflective material 10 will not be clear enough. If it is too thin, it will easily deform and cannot be smoothly driven by the drive shaft 6.

[0022] In another embodiment, such as Figure 2As shown, the PE film 9 located below the base 2 and the bottom of the heating device 1 are spaced apart to allow the PE film 9 to have sufficient cooling space.

[0023] In another embodiment, combined Figure 1 and Figure 2 As shown, a pair of connecting frames corresponding to the active shaft 6 and the passive shaft 7 are respectively provided on both sides of the base 2, and the active shaft 6 and the passive shaft 7 are rotatably connected to the two pairs of connecting frames respectively.

[0024] In another embodiment, such as Figure 1 As shown, a motor frame is also provided on the left rear end of the base 2. A first drive motor 11 is fixed on the motor frame. The output shaft of the first drive motor 11 is connected to the end of the drive shaft 6. The first drive motor 11 drives the drive shaft 6 to rotate, thereby driving the PE film 9 to move.

[0025] In another embodiment, such as Figure 1 As shown, the unwinding shaft 4 and the rewinding shaft 5 are independently arranged at the front and rear ends of the base 2, so as to facilitate the replacement of the unwinding shaft 4 and the rewinding shaft 5.

[0026] In another embodiment, such as Figure 1 As shown, the unwinding shaft 4 and the take-up shaft 5 are rotatably connected to two pairs of shaft seats respectively. A second drive motor 12 is also provided on one side of the shaft seat corresponding to the take-up shaft 5. The output shaft of the second drive motor 12 is connected to one end of the take-up shaft 5. The second drive motor 12 drives the take-up shaft 5 to rotate intermittently, so as to wind the embossed reflective material 10 onto the take-up shaft 5.

[0027] In another embodiment, such as Figure 1 As shown, a roller 13 is rotatably connected to the front and rear ends of the base 2, and the two rollers 13 respectively abut against the reflective material 10 at the front and rear ends of the base 2 to ensure that the reflective material 10 on the base 2 abuts against the top surface of the base 2.

[0028] In another embodiment, such as Figure 2 As shown, a guide post 14 is provided at each of the four corners of the top of the base 2, and a guide hole is provided at each of the four corners of the pressure plate 3. Each guide post 14 passes through the corresponding guide hole, and a bracket 15 is fixed between the tops of each guide post 14. A cylinder 16 is fixed in the middle of the bracket 15. The piston rod of the cylinder 16 is connected to the pressure plate 3 to ensure the stability of the pressure plate 3 when it is raised and lowered.

[0029] In another embodiment, such as Figure 2 As shown, the bottom of the base 2 is also provided with two pairs of support legs 17 so that the base 2 maintains a suitable distance from the ground and provides enough space for the rotation of the PE.

Claims

1. An embossing device for reflective materials, comprising a hot press, characterized in that, The hot press includes a base (2) with a heating device (1) at the bottom and a pressure plate (3) that is lifted and connected above the base (2). The bottom of the pressure plate (3) is embossed. The front and rear ends of the base (2) are respectively provided with a winding shaft (4) and a winding shaft (5). The left and right sides of the base (2) are respectively rotatably connected with a drive shaft (6) and a driven shaft (7). The bottom of the base (2) is also provided with two guide shafts (8). The drive shaft (6), the driven shaft (7) and the two guide shafts (8) are covered with a thickened PE film (9). The reflective material (10) to be embossed is wound on the unwinding shaft (4) and its end is wound onto the take-up shaft (5) through the PE film (9) layer and the base (2). The portion of the reflective material (10) on the base (2) is set in close contact with the base (2).

2. The embossing device for reflective materials as described in claim 1, characterized in that, The PE film (9) has a thickness of 0.5 mm.

3. The embossing device for reflective materials as described in claim 2, characterized in that, The PE film (9) located below the base (2) and the bottom of the heating device (1) are kept at a distance.

4. The embossing device for reflective materials as described in claim 3, characterized in that, The base (2) has a pair of connecting frames on both sides corresponding to the active shaft (6) and the passive shaft (7), and the active shaft (6) and the passive shaft (7) are rotatably connected to the two pairs of connecting frames respectively.

5. An embossing device for reflective materials as described in claim 4, characterized in that, The base (2) is also provided with a motor frame on the left rear end, and a first drive motor (11) is fixed on the motor frame. The output shaft of the first drive motor (11) is connected to the end of the drive shaft (6).

6. An embossing device for reflective materials as described in claim 5, characterized in that, The unwinding shaft (4) and the winding shaft (5) are respectively independently installed at the front and rear ends of the base (2).

7. An embossing device for reflective materials as described in claim 6, characterized in that, The unwinding shaft (4) and the winding shaft (5) are rotatably connected to two pairs of winding shaft seats respectively. A second drive motor (12) is also provided on one side of the winding shaft seat corresponding to the winding shaft (5). The output shaft of the second drive motor (12) is connected to one end of the winding shaft (5).

8. An embossing device for reflective materials as described in claim 7, characterized in that, The base (2) is also rotatably connected to a roller (13) at its front and rear ends respectively, and the two rollers (13) abut against the reflective material (10) at the front and rear ends of the base (2) respectively.

9. An embossing device for reflective materials as described in claim 8, characterized in that, The base (2) is provided with a guide post (14) at each of the four corners of the top, and the pressure plate (3) is provided with a guide hole at each of the four corners. Each guide post (14) passes through the corresponding guide hole. A bracket (15) is fixed between the tops of each guide post (14). A cylinder (16) is fixed in the middle of the bracket (15). The piston rod of the cylinder (16) is connected to the pressure plate (3).

10. An embossing device for reflective materials as described in claim 9, characterized in that, The base (2) is also provided with two pairs of support legs (17) at its bottom.

Images