Embossing device for PET (Polyethylene Terephthalate) aluminum foil composite film

Abstract

The utility model discloses a PET (polyethylene terephthalate) aluminum foil composite film embossing device, which relates to the technical field of composite film processing, and comprises a base, a support and an embossing roller, four driving rollers are connected inside the support, spline housings are sleeved outside the four driving rollers, bolts penetrate through the tops of the four spline housings, and the embossing roller is connected with the support. The tops of the four transmission rollers are each provided with two limiting holes. Inserting frames are fixed to the two ends of the knurling roller. Due to the arrangement of the insertion frame, the transmission roller, the spline housing and the spline groove, when disassembly is needed, the spline housing is horizontally moved, the spline housing is guided through the spline groove in the period, the spline housing is separated from the insertion frame, then the embossing roller and the insertion frame can be pulled out to be replaced, and after the embossing roller with other lines is installed, the spline housing is horizontally moved in the reverse direction; the spline housing sleeves the insertion frame to finish limiting, so that the phenomenon that the knurling roller falls off due to the fact that the opening of the insertion frame faces downwards when the knurling roller and the insertion frame rotate is avoided; the bearing does not need to be disassembled, and the embossing roller can be conveniently and rapidly replaced.

Description

Technical Field

[0001] This utility model relates to the field of composite film processing technology, specifically to a PET aluminum foil composite film embossing device. Background Technology

[0002] Embossing of PET aluminum foil composite film is a common surface treatment process. It involves creating textures, patterns, trademarks, etc. on the surface of the composite film through mechanical or hot pressing to enhance its functionality or decoration. It is widely used in food packaging, industrial products, daily chemical products, pharmaceutical packaging and other fields.

[0003] An embossing device for plastic strips, with application number 202421597964.4, includes an embossing table and a replacement fixing device. The replacement fixing device includes two mounting bases, two guide rods, a mounting top plate, two trapezoidal blocks, two pull rods, and a spring. The two mounting bases are fixedly connected to the top of the embossing table. The two guide rods are slidably connected inside the mounting bases. The mounting top plate is fixedly connected to the top of the two guide rods. The two trapezoidal blocks are slidably connected inside the mounting bases and are symmetrically arranged. The two pull rods are fixedly connected to the surfaces of the two trapezoidal blocks respectively. The operator can slide the mounting top plate upwards and drive the two guide rods out of the mounting base to complete the disassembly, allowing the operator to replace the embossing rollers. This facilitates the operator to emboss various specifications of plastic strips.

[0004] The quick-release method used in this technical solution has significant stability drawbacks. This disassembly method makes it difficult to use bearings to reduce friction and wear, thus requiring the use of rollers for resistance reduction. However, compared to traditional bearings, which can incorporate grease and seals for lubrication and dust prevention, achieving better friction and wear reduction, this technical solution uses ball bearings. The sealing and lubrication of ball bearings are far inferior, and the lack of a cage to distribute the load means that the lower ball bearings not only have to roll to reduce friction but also bear the weight of the embossing roller. Since embossing rollers are typically metal rollers with considerable weight, the lower ball bearings experience significant wear and may even break easily. If bearings are used, they are usually assembled with an interference fit, which is not convenient for quick disassembly and assembly, requiring the bearings to be separated from the embossing rollers first. Utility Model Content

[0005] Therefore, the purpose of this utility model is to provide a PET aluminum foil composite film embossing device to solve the technical problems mentioned in the background art.

[0006] To achieve the above object, the utility model provides the following technical solutions: A PET aluminum foil composite film embossing device, including a base, a bracket and an embossing roller. Four transmission rollers are connected inside the bracket, and spline sleeves are sleeved outside the four transmission rollers. Bolts penetrate through the tops of the four spline sleeves, and two limiting holes are provided at the tops of the four transmission rollers. Plug brackets are fixed at both ends of the embossing roller, and spline grooves are provided on the surfaces of the plug brackets and the transmission rollers. Eight supporting rollers are connected to both sides of the top of the base.

[0007] By adopting the above technical solutions, after the motor is started, the output end drives one transmission roller to rotate. The shapes of the transmission roller and the plug bracket can transmit power, and the spline sleeve is simultaneously connected to the spline grooves on the transmission roller and the plug bracket, which can also transmit power, so that the plug bracket and the transmission roller rotate synchronously to drive the embossing roller to rotate. And through the supporting rollers, the bottom of the spline sleeve can be supported during the working process of the embossing roller, avoiding that the weight of the embossing roller is entirely borne by the contact surface between the transmission shaft and the plug bracket and the spline sleeve, but directly transmitting the weight to the supporting rollers through the spline sleeve and then to the base; avoiding deformation of the plug bracket, transmission roller and spline sleeve due to the excessive weight of the embossing roller causing large downward radial forces for a long time. When it is necessary to disassemble and replace the embossing roller with other patterns, the staff first loosens the bolts to make the bolts withdraw from the limiting holes, and then the staff horizontally moves the spline sleeve. During this period, the spline sleeve is guided through the spline groove. After the spline sleeve is horizontally moved, it is separated from the plug bracket. Then the staff can pull out the embossing roller and the plug bracket for replacement. After installing the embossing roller with other patterns, the plug is in contact with the transmission roller. The staff horizontally moves the spline sleeve in the reverse direction to make the spline sleeve sleeve the plug bracket to complete the limit, avoiding the phenomenon that the embossing roller drops when the plug bracket opens downward during the rotation of the embossing roller and the plug bracket. Then the staff screws the bolts into the limiting holes to complete the limit of the spline sleeve and prevent the spline sleeve from sliding randomly.

[0008] Further, one end of the plug bracket has a longitudinal section in the shape of "two", and one end of the transmission roller has a longitudinal section in the shape of "one".

[0009] By adopting the above technical solutions, the staff horizontally moves the spline sleeve. During this period, the spline sleeve is guided through the spline groove. After the spline sleeve is horizontally moved, it is separated from the plug bracket. Then the staff can pull out the embossing roller and the plug bracket for replacement.

[0010] Further, there are multiple spline grooves, and the multiple spline grooves are distributed in a circular array.

[0011] By adopting the above technical solutions, by increasing the number of spline grooves, the contact surface between the spline sleeve and the transmission roller and the plug bracket is increased, the connection strength of the structure is increased, and the power can be transmitted better.

[0012] Further, the length of the spline groove is greater than the length of the spline sleeve, and the spline sleeve is slidably connected to the spline groove.

[0013] By adopting the above technical solution, the longer spline groove facilitates the sliding of the spline sleeve. The end of the sliding of the spline sleeve limits the insertion frame, thereby facilitating the replacement of the embossing roller.

[0014] Furthermore, the insert is detachably connected to the drive roller and the spline sleeve, respectively.

[0015] By adopting the above technical solution, after the embossing roller is installed, the insert contacts the drive roller, and the operator moves the spline sleeve horizontally in the opposite direction so that the spline sleeve covers the insert frame, thereby completing the limit.

[0016] Furthermore, the bolt is threadedly connected to the limiting hole.

[0017] By adopting the above technical solution, the bolt can cooperate with the two limiting holes to limit the spline sleeve, preventing the spline sleeve from displacing and separating from the bracket during operation, and preventing the spline sleeve from displacing and blocking the straight end face of the transmission rod during disassembly and assembly, thus affecting the assembly.

[0018] Furthermore, the idler roller is in contact with the spline sleeve, and the length of the idler roller is less than the length of the spline sleeve.

[0019] By adopting the above technical solution, the length of the idler roller is less than the length of the spline sleeve, so that the idler roller will not come into contact with the bolt, thus avoiding structural damage caused by the bolt colliding with the idler roller during the revolution.

[0020] Furthermore, the base has brackets connected to both sides of its top, and a motor is installed on one side of the brackets. The output end of the motor is connected to a reducer, and the reducer is connected to a transmission roller. One end of each of the two transmission rollers is connected to a gear. There are two embossing rollers, and the two embossing rollers are located between the four transmission rollers.

[0021] By adopting the above technical solution, after the motor starts, the output end drives the embossing roller to rotate, and at the same time, the two embossing rollers rotate in opposite directions through the meshing of two gears, thereby performing embossing operation on the PET aluminum foil composite film.

[0022] Furthermore, the idler roller is made of 42CrMo substrate with surface hard chrome plating, and the thickness of the hard chrome plating layer is 20-50μm.

[0023] By adopting the above technical solutions, the 42CrMo idler rollers can withstand heavier loads, which facilitates the support of the embossing rollers. Furthermore, the 42CrMo substrate surface is plated with hard chrome, which increases hardness and reduces the surface friction coefficient of the idler rollers to a minimum of 0.1, thus avoiding significant frictional resistance and wear between the horizontal displacement of the spline sleeve and the idler rollers.

[0024] Furthermore, guide rollers are connected to both the upper and lower interior of the bracket.

[0025] By adopting the above technical solution, the PET aluminum foil composite film bends into an L-shape when it contacts the bottom and surface of the guide roller located at the rear and lower. Then, the PET aluminum foil composite film passes upward between the two embossing rollers. Finally, the PET aluminum foil composite film bends into a 7-shape when it contacts the back and top of the guide roller at the front and upper. The direction of movement of the PET aluminum foil composite film is changed by the guide roller, which makes it easier to adapt to the improved embossing roller.

[0026] In summary, the present invention has the following main advantages:

[0027] 1. This utility model, through the arrangement of a bracket, transmission roller, spline sleeve, and spline groove, allows for easy disassembly. When disassembly is required, the spline sleeve is moved horizontally, guided by the spline groove to separate from the bracket. The embossing roller and bracket can then be removed for replacement. After inserting an embossing roller with a different pattern, the spline sleeve is moved horizontally in the opposite direction to lock the bracket in place, thus preventing the embossing roller from falling off when the bracket opening faces downwards during rotation. When the transmission roller rotates, the shapes of the transmission roller and bracket transmit power, and the spline sleeve, connected to the spline groove on both the transmission roller and bracket, also transmits power, causing the bracket and transmission roller to rotate synchronously, thereby driving the embossing roller to rotate. This eliminates the need to disassemble bearings and facilitates quick and easy replacement of the embossing roller.

[0028] 2. By using bolts and limiting holes, this utility model allows the bolts to cooperate with the two limiting holes to limit the spline sleeve, preventing the spline sleeve from shifting and separating from the bracket during operation, and preventing the spline sleeve from shifting and blocking the straight end face of the transmission rod during disassembly and assembly, thus improving the stability of the structure.

[0029] 3. This utility model, through the setting of the support roller, can support the bottom of the spline sleeve during the operation of the embossing roller, avoiding the weight of the embossing roller being borne entirely by the contact surface between the drive shaft and the insert and the spline sleeve. Instead, the weight is directly transferred to the support roller and then to the base through the spline sleeve. This prevents the insert, drive roller and spline sleeve from being deformed due to excessive downward radial force caused by the weight of the embossing roller, and increases the stability of the contact surface. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the structure of this utility model;

[0031] Figure 2 This is a side sectional view of the present invention.

[0032] Figure 3 This is a schematic diagram of the spline sleeve structure of this utility model;

[0033] Figure 4 This is a schematic diagram of the exploded structure of the embossing roller of this utility model;

[0034] Figure 5 This is a schematic diagram of the exploded structure of the transmission roller of this utility model.

[0035] In the diagram: 1. Base; 2. Bracket; 3. Motor; 4. Reducer; 5. Gear; 6. Embossing roller; 7. Guide roller; 8. Support roller; 9. Insert bracket; 10. Transmission roller; 11. Spline sleeve; 12. Bolt; 13. Limiting hole; 14. Spline groove. Detailed Implementation

[0036] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0037] The embodiments of this utility model will be described below based on its overall structure.

[0038] Example 1:

[0039] A PET aluminum foil composite film embossing device, such as Figures 1-5As shown, the device includes a base 1, a support 2, and an embossing roller 6. Four drive rollers 10 are internally connected to the support 2. One end of each drive roller 10 has a "I"-shaped longitudinal section. Spline sleeves 11 are fitted onto the exterior of each of the four drive rollers 10. Bolts 12 penetrate the top of each of the four spline sleeves 11. Two limiting holes 13 are formed at the top of each of the four drive rollers 10, and the bolts 12 are threaded into the limiting holes 13. Insert brackets 9 are fixed to both ends of the embossing roller 6. One end of each insert bracket 9 has a "II"-shaped longitudinal section. The insert brackets 9 are respectively connected to the drive rollers 10 and the spline sleeves 11. For disassembly and connection, both the insert 9 and the drive roller 10 are provided with spline grooves 14. Multiple spline grooves 14 are arranged in a circular array. The length of each spline groove 14 is greater than the length of the spline sleeve 11. The spline sleeve 11 is slidably connected to the spline groove 14. When it is necessary to disassemble and replace the embossing roller 6 with a different pattern, the operator first loosens the bolt 12 to allow it to exit from the limiting hole 13. Then, the operator moves the spline sleeve 11 horizontally, guiding it through the spline grooves 14. After the key sleeve 11 moves horizontally, it separates from the bracket 9. Then, the operator can remove and replace the embossing roller 6 and the bracket 9. After inserting an embossing roller 6 with a different pattern, the operator moves the spline sleeve 11 horizontally in the opposite direction, so that the spline sleeve 11 covers the bracket 9, thus completing the limiting position and preventing the embossing roller 6 from falling off when the bracket 9's opening faces downwards during rotation. Then, the operator screws the bolt 12 into the limiting hole 13 to limit the spline sleeve 11, preventing it from sliding freely. Both sides of the top of the base 1... Eight support rollers 8 are connected, and the support rollers 8 are in contact with the spline sleeve 11. The length of the support rollers 8 is less than the length of the spline sleeve 11. The support rollers 8 can support the bottom of the spline sleeve 11 during the operation of the embossing roller 6, so that the weight of the embossing roller 6 is not entirely borne by the contact surface between the drive shaft and the bracket 9 and the spline sleeve 11, but is directly transferred to the support rollers 8 and then to the base 1 through the spline sleeve 11; so as to avoid the bracket 9, drive roller 10 and spline sleeve 11 being deformed due to long-term large downward radial force caused by the excessive weight of the embossing roller 6.

[0040] See Figure 1 , Figure 2 and Figure 4 In the above embodiment, the base 1 is connected to the top two sides of the bracket 2, the bracket 2 is installed on one side of the motor 3, the output end of the motor 3 is connected to the reducer 4, and the reducer 4 is connected to a transmission roller 10; one end of each of the two transmission rollers 10 is connected to a gear 5; there are two embossing rollers 6, which are located between the four transmission rollers 10. After the motor 3 starts, the output end drives the embossing rollers 6 to rotate, and at the same time, the two embossing rollers 6 rotate towards each other through the meshing of the two gears 5, thereby performing the embossing operation on the PET aluminum foil composite film.

[0041] Example 2:

[0042] Based on the above embodiment one, the following settings are now implemented.

[0043] See Figures 1-3 In the above embodiment, the idler roller 8 is made of 42CrMo substrate with hard chrome plating on the surface. The thickness of the hard chrome plating layer is 20-50μm. The 42CrMo idler roller 8 can withstand heavy loads and is convenient for supporting the embossing roller 6. The hard chrome plating on the surface of the 42CrMo substrate increases hardness and reduces the surface friction coefficient of the idler roller 8 to a minimum of 0.1, thus avoiding large frictional resistance and wear between the horizontal displacement of the spline sleeve 11 and the idler roller 8.

[0044] Example 3:

[0045] Based on the above embodiment one, the following settings are now adopted to facilitate the guidance of the PET aluminum foil composite film.

[0046] See Figure 1 and Figure 2 In the above embodiment, guide rollers 7 are connected to both the upper and lower interior of the bracket 2 to change the moving direction of the PET aluminum foil composite film, making it easier to adapt to the improved embossing roller 6.

[0047] The implementation principle of this utility model is as follows: First, the PET aluminum foil composite film bends into an L-shape by contacting the bottom and surface of the guide roller 7 located at the rear and lower. Then, the PET aluminum foil composite film passes upward between the two embossing rollers 6. Finally, the PET aluminum foil composite film bends into a 7-shape by contacting the back and top of the guide roller 7 located at the front and upper. When embossing is required, the operator turns on the motor 3.

[0048] After the motor 3 starts, its output end drives a transmission roller 10 to rotate through the reducer 4. The shape of the transmission roller 10 and the shape of the insert 9 can transmit power. The spline sleeve 11 is connected to the spline groove 14 on both the transmission roller 10 and the insert 9, which can also transmit power, so that the insert 9 and the transmission roller 10 rotate synchronously, thereby driving the embossing roller 6 to rotate. At the same time, the two embossing rollers 6 rotate in opposite directions through the meshing of two gears 5, thereby performing the embossing operation on the PET aluminum foil composite film. The support roller 8 can support the bottom of the spline sleeve 11 during the operation of the embossing roller 6, so that the weight of the embossing roller 6 is not entirely borne by the contact surface between the transmission shaft and the insert 9 and the spline sleeve 11, but is directly transferred to the support roller 8 and then to the base 1 through the spline sleeve 11. This prevents the insert 9, transmission roller 10 and spline sleeve 11 from being deformed due to long-term large downward radial force caused by the excessive weight of the embossing roller 6.

[0049] When it is necessary to disassemble and replace the embossing roller 6 with a different pattern, the worker first loosens the bolt 12 so that the bolt 12 is removed from the limiting hole 13. Then the worker moves the spline sleeve 11 horizontally, during which the spline sleeve 11 is guided by the spline groove 14. After the spline sleeve 11 moves horizontally, it separates from the insert 9. Then the worker can pull out the embossing roller 6 and the insert 9 for replacement. After the embossing roller 6 with a different pattern is installed, the insert 9 contacts the drive roller 10. The worker moves the spline sleeve 11 horizontally in the opposite direction so that the spline sleeve 11 covers the insert 9 to complete the limiting, thus preventing the embossing roller 6 from falling off when the insert 9 opens downwards during the rotation of the embossing roller 6 and the insert 9. Then the worker screws the bolt 12 into the limiting hole 13 to complete the limiting of the spline sleeve 11 and prevent the spline sleeve 11 from sliding freely.

[0050] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, and variations are within the scope of the claims of the present invention and are protected by patent law.

Claims

1. A PET aluminum foil composite film embossing device, comprising a base (1), a support (2), and an embossing roller (6), characterized in that: Inside the bracket (2), four driving rollers (10) are connected, and spline sleeves (11) are sleeved outside the four driving rollers (10). Bolts (12) penetrate through the tops of the four spline sleeves (11), and two limiting holes (13) are formed at the tops of the four driving rollers (10); Plug brackets (9) are fixed at both ends of the embossing roller (6), and spline grooves (14) are provided on the surfaces of the plug brackets (9) and the driving rollers (10); Eight supporting rollers (8) are connected to both sides of the top of the base (1).

2. The PET aluminum foil composite film embossing device according to claim 1, characterized in that: One end of the plug bracket (9) has a "two" - shaped longitudinal section, and one end of the driving roller (10) has a "one" - shaped longitudinal section.

3. The PET aluminum foil composite film embossing device according to claim 1, characterized in that: A plurality of spline grooves (14) are provided, and the plurality of spline grooves (14) are distributed in an annular array.

4. The PET aluminum foil composite film embossing device according to claim 3, characterized in that: The length of the spline groove (14) is greater than the length of the spline sleeve (11), and the spline sleeve (11) is slidably connected to the spline groove (14).

5. The PET aluminum foil composite film embossing device according to claim 4, characterized in that: The plug bracket (9) is detachably connected to the driving roller (10) and the spline sleeve (11) respectively.

6. The PET aluminum foil composite film embossing device according to claim 1, characterized in that: The bolt (12) is threadedly connected to the limiting hole (13).

7. The PET aluminum foil composite film embossing device according to claim 1, characterized in that: The supporting roller (8) contacts the spline sleeve (11), and the length of the supporting roller (8) is less than the length of the spline sleeve (11).

8. The PET aluminum foil composite film embossing device according to claim 1, characterized in that: On both sides of the top of the base (1), brackets (2) are connected, and a motor (3) is installed on one side of the bracket (2). The output end of the motor (3) is connected to a reducer (4), and the reducer (4) is connected to one driving roller (10); Gears (5) are connected to one end of two of the driving rollers (10); Two embossing rollers (6) are provided, and the two embossing rollers (6) are located between the four driving rollers (10).

9. The PET aluminum foil composite film embossing device according to claim 7, characterized in that: The supporting roller (8) is made of 42CrMo matrix plus surface hard chromium plating material, and the thickness of the hard chromium plating layer is 20 - 50μm.

10. The PET aluminum foil composite film embossing device according to claim 8, characterized in that: Guide rollers (7) are connected above and below the inside of the bracket (2).

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