Production device of aluminum-plastic combined cover

Abstract

This utility model discloses a production device for aluminum-plastic composite caps, belonging to the field of aluminum-plastic packaging material processing technology. It includes a conveying component, a punching component, and a lubrication and correction component. The conveying component includes a conveyor roller track along which an aluminum strip moves. The punching component is used to punch the aluminum strip located on the conveyor roller track to form an aluminum cap. The lubrication and correction component includes a liftable lifting bracket and a rotatable lubrication roller. Both ends of the lifting bracket are connected to the sides of the conveyor roller track. The lubrication roller includes a wheel body, a limiting ring, and an outer sleeve for providing lubricant. The wheel body is rotatably connected to the middle of the lifting bracket, and the lifting bracket can adjust the distance between the wheel body and the aluminum strip. The outer sleeve is fitted onto the wheel body for rolling and pressing against the aluminum strip, applying lubricant to the aluminum strip. The limiting ring is located on both sides of the wheel body to limit the lateral deviation of the aluminum strip. This utility model can lubricate and correct the aluminum strip, improving the quality of the aluminum cap.

Description

Technical Field

[0001] This utility model relates to the field of aluminum-plastic packaging material processing technology, and in particular to a production device for an aluminum-plastic composite cap. Background Technology

[0002] Aluminum strip is made from pure aluminum or aluminum alloy cast-rolled or hot-rolled aluminum coils. These coils are then cold-rolled into thin sheets of varying thicknesses and widths, and finally slit longitudinally into strips of different widths according to their intended use. Aluminum strip is a deep-processed aluminum product formed through the slitting and cutting of aluminum coils, and it is an important raw material in industry.

[0003] Aluminum strip is the main raw material for aluminum caps used in injection bottles, and aluminum caps are obtained by stamping aluminum strip. However, aluminum alloy is relatively soft, and during stamping deformation, it will generate severe friction and extrusion with the mold surface, which can easily cause material transfer, affecting both the service life of the mold and the processing quality of the aluminum cap. Utility Model Content

[0004] In view of this, it is necessary to provide a production apparatus for aluminum-plastic composite covers to solve the problems of aluminum strip sticking to the die and displacement during the existing aluminum strip stamping process.

[0005] This utility model provides a production apparatus for aluminum-plastic composite caps, comprising: A conveying assembly, the conveying assembly including a conveyor roller conveyor along which the aluminum strip moves; A stamping assembly for stamping an aluminum strip located on the conveyor rollers to form an aluminum cover; A lubrication correction assembly includes a liftable lifting bracket and a rotatable lubrication roller. The two ends of the lifting bracket are respectively connected to the sides of the conveyor roller conveyor. The lubrication roller includes a wheel body, a limiting ring, and an outer sleeve for providing lubricant. The wheel body is rotatably connected to the middle of the lifting bracket, and the lifting bracket can adjust the distance between the wheel body and the aluminum belt. The outer sleeve is fitted onto the wheel body to roll and press against the aluminum belt, applying lubricant to the aluminum belt. The limiting ring is located on both sides of the wheel body to limit the lateral deviation of the aluminum belt.

[0006] Furthermore, the wheel body has an internal storage cavity for containing lubricant, and the wheel body has a communication hole for connecting the outside to the storage cavity, and the storage cavity can provide lubricant to the outer casing.

[0007] Furthermore, multiple connecting holes are equidistantly arranged along the axial direction of the wheel body to form hole groups, and multiple hole groups are equidistantly arranged around the central axis of the wheel body.

[0008] Furthermore, a sealing plug is provided at one end of the wheel body, and the sealing plug is detachably connected to the wheel body, and the sealing plug can connect the storage cavity to the outside.

[0009] Furthermore, the conveyor roller includes an abutment platform adapted to the lubrication roller, the width of the abutment platform being consistent with the distance between the two limiting rings, and the length of the abutment platform being greater than the diameter of the wheel body.

[0010] Furthermore, the lifting bracket includes two side rods, a lifting rod, a rotating rod, and a locking component. One end of the side rod is fixedly connected to the conveyor roller, and one end of the lifting rod is movably inserted into the other end of the side rod. The locking component is disposed between the lifting rod and the side rod to fix their positions. The two ends of the rotating rod are respectively connected to the other ends of the two lifting rods, and the wheel is rotatably connected to the rotating rod.

[0011] Furthermore, the punching assembly includes a hydraulic press and multiple punching heads. The hydraulic press is located on one side of the conveyor roller conveyor, and the punching heads are located at the output end of the hydraulic press. The punching heads are capable of punching aluminum strips to produce aluminum caps.

[0012] Furthermore, the transmission assembly also includes a rotatable roller and a verification unit. The roller is capable of automatically unwinding the aluminum strip. The verification unit is located at one end of the transmission roller conveyor near the roller to detect the presence or absence of the aluminum strip.

[0013] Furthermore, it also includes a feeding assembly, which includes a blower unit disposed on one side of the hydraulic press, the blower unit being able to blow off the aluminum cap located on the punching head.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model discloses a production device for aluminum-plastic composite covers, equipped with a lubrication and correction assembly. The lubrication and correction assembly includes a liftable lifting bracket and a rotatable lubrication roller. Both ends of the lifting bracket are connected to the sides of a conveyor roller track, achieving connection and fixation between the lifting bracket and the conveyor roller track. The lubrication roller includes a wheel body, a limiting ring, and an outer sleeve for providing lubricant. The wheel body is rotatably connected to the middle of the lifting bracket. The outer sleeve is fitted onto the wheel body, rolling and pressing against the aluminum strip, applying lubricant to the aluminum strip. The lubricant forms a stable oil film on the aluminum strip, reducing the coefficient of friction between the die and the material during the stamping process. The lifting bracket can adjust the distance between the wheel body and the aluminum strip, thereby changing the degree of compression on the outer sleeve and adjusting the amount of lubricant used on the aluminum strip. The limiting ring is located on both sides of the wheel body, restricting the aluminum strip between the two limiting rings, preventing lateral deviation of the aluminum strip, correcting and correcting the position of the aluminum strip, ensuring that the punching head is always aligned with the predetermined position, and improving the dimensional consistency of the aluminum cover products. Attached Figure Description

[0015] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the lubrication correction component in this utility model. Figure 1 ; Figure 3 This is a schematic diagram of the lubrication correction component in this utility model. Figure 2 ; Figure 4 This is a schematic diagram of the structure of the blanking component in this utility model. Figure 1 ; Figure 5 This is a schematic diagram of the structure of the blanking component in this utility model. Figure 2 .

[0016] In the diagram, 100 is the transmission component; 110 is the transmission roller; 111 is the contact platform; 120 is the rotary wheel; and 130 is the verification unit. 200. Blanking assembly; 210. Hydraulic press; 220. Blanking head; 300. Lubrication and correction assembly; 310. Lifting bracket; 311. Side rod; 312. Lifting rod; 313. Rotating rod; 314. Locking component; 320. Lubrication roller; 321. Wheel body; 321a. Connecting hole; 321b. Sealing plug; 322. Limiting ring; 323. Outer sleeve; 400. Feeding assembly; 410. Blowing unit; 500, aluminum strip. Detailed Implementation

[0017] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, which constitute a part of this application and are used together with the embodiments of the present invention to illustrate the principles of the present invention, but are not intended to limit the scope of the present invention.

[0018] This embodiment describes a production apparatus for an aluminum-plastic composite cap, which relates to the field of aluminum-plastic packaging material processing technology. By applying a small amount of lubricant to the surface of the aluminum strip 500 before punching, the friction between the punching head 220 and the aluminum strip 500 can be reduced, preventing the aluminum strip 500 from sticking to the die and improving the processing quality of the aluminum strip 500.

[0019] Please see Figures 1 to 5The production apparatus for an aluminum-plastic composite cover in this embodiment includes a transmission component 100, a punching component 200, and a lubrication and correction component 300. The transmission component 100 includes a transmission roller conveyor 110, which can support the aluminum strip 500 and drive the aluminum strip 500 to move along the transmission roller conveyor 110.

[0020] The lubrication correction assembly 300 includes a liftable lifting bracket 310 and a rotatable lubrication roller 320. Both ends of the lifting bracket 310 are connected to the sides of the conveyor roller 110, achieving connection and fixation between the lifting bracket 310 and the conveyor roller 110. The lubrication roller includes a wheel body 321, a limiting ring 322, and an outer sleeve 323 for providing lubricant. The wheel body 321 is rotatably connected to the middle of the lifting bracket 310. The outer sleeve 323 is fitted onto the wheel body 321 and rolls against the aluminum strip 500, applying lubricant to the aluminum strip 500. The lubricant forms a stable oil film on the aluminum strip 500, reducing the coefficient of friction between the die and the material during the stamping process. The lifting bracket 310 can adjust the distance between the wheel body 321 and the aluminum strip 500, thereby changing the degree of compression on the outer sleeve 323 and thus adjusting the amount of lubricant used on the aluminum strip 500. The limiting rings 322 are set on both sides of the wheel body 321. The aluminum strip 500 is restricted between the two limiting rings 322, which can prevent the aluminum strip 500 from shifting left and right, correct the position of the aluminum strip 500, and ensure that the punching head 220 is always aligned with the predetermined position, thereby improving the dimensional consistency of the aluminum cover product.

[0021] During use, as the aluminum strip 500 moves continuously on the conveyor roller 110, the lubricating roller 320 contacts the surface of the aluminum strip 500 through its own weight or external pressure. The height adjustment of the lifting bracket 310 maintains appropriate contact pressure between the wheel body 321 and the aluminum strip 500, and the outer sleeve material 323 continuously exudes lubricant during contact, forming a uniform oil film. The limiting ring 322 contacts the edge of the aluminum strip 500, forming a guide channel. When the aluminum strip 500 shifts laterally, the sidewall of the limiting ring 322 generates a counterforce to correct its position. The punching assembly 200 performs precise punching on the lubricated aluminum strip 500, and the limiting structure ensures the consistency of the punching position.

[0022] It should be noted that: the outer sleeve 323 is a permeable material layer that wraps around the wheel body 321, which can be made of porous ceramic or fiber woven fabric, and is used to absorb and release lubricant. The limiting ring 322 refers to the annular protrusions set at both ends of the wheel body 321, which can be made of hard rubber or engineering plastic, and its inner diameter is slightly larger than the width of the aluminum strip 500.

[0023] In some embodiments, please refer to Figure 2 and Figure 3The wheel body 321 has an internal storage chamber for holding lubricant, and a connecting hole 321a on the wheel body 321 for connecting the external environment to the storage chamber. The lubricant is released on demand through the connecting hole 321a, which ensures the uniformity of the lubricating film on the surface of the aluminum strip 500 and reduces excessive consumption of lubricating material. The design of the connecting hole 321a eliminates the need for frequent machine shutdowns for maintenance during continuous production, significantly improving the processing efficiency of aluminum covers.

[0024] In practical implementation, the storage cavity is a hollow structure located inside the wheel body 321. Specifically, it can be a cylindrical cavity that runs axially through the wheel body 321, and the cavity is used to store solid or liquid lubricating materials. The connecting hole 321a refers to a through-hole structure that penetrates the wall thickness of the wheel body 321. Specifically, it can be an array of circular holes with a diameter in the range of 0.5-2 mm, used to establish a lubricant delivery channel between the storage cavity and the outer casing 323.

[0025] When the wheel 321 descends to the working position with the lifting bracket 310, the lubricant in the storage cavity permeates to the surface of the outer sleeve 323 under the action of gravity through the connecting hole 321a. As the wheel 321 rolls on the surface of the aluminum strip 500, the lubricant that has permeated to the surface of the outer sleeve 323 is evenly coated on the surface of the aluminum strip 500. This process enables a continuous supply of lubricant, avoiding lubrication interruptions caused by traditional manual application. The storage cavity can be pre-filled with solid grease, which is slowly released to the surface of the outer sleeve 323 through the connecting hole 321a, forming a stable lubricating film layer before the aluminum strip 500 contacts the stamping die.

[0026] For further implementation methods, please refer to Figure 4 The wheel body 321 has multiple connecting holes 321a equidistantly arranged along the axial direction of the wheel body 321, forming a hole group. The multiple hole groups are equidistantly arranged around the central axis of the wheel body 321. The connecting holes 321a can form a continuous and uniform oil film layer on the surface of the aluminum strip 500, avoiding the phenomenon of material sticking to the mold due to local lubrication failure during the stamping process, thereby reducing the risk of abnormal mold wear and improving the consistency of aluminum cover forming quality.

[0027] In practical implementation, the connecting hole 321a is a channel structure that penetrates the inner and outer surfaces of the wheel body 321. Specifically, it can be a circular hole with a diameter ranging from 0.5 to 2 mm, used to allow lubricant in the storage cavity to permeate into the outer sleeve 323. The hole group refers to a collection of connecting holes 321a arranged along the length of the wheel body 321. Specifically, it can be arranged in groups every 50-100 mm, ensuring uniform lubricant permeation along the width of the aluminum strip 500 through axial equidistant distribution. Equidistant arrangement around the central axis means that multiple hole groups are symmetrically distributed circumferentially around the wheel body 321. Specifically, it can be arranged in groups every 90° or 120°, ensuring a continuous supply of lubricant along the travel direction of the aluminum strip 500 through circumferential uniform distribution.

[0028] During the rotation of the wheel 321, the lubricant in the storage cavity seeps evenly to the surface of the outer sleeve 323 through axially equidistantly distributed holes. Because the holes are distributed at equal angles in the circumferential direction, each time the wheel 321 rotates a certain angle, a new set of holes contacts the aluminum strip 500 and replenishes the lubricant. This dual equidistant distribution design allows the lubricant to evenly cover the width of the aluminum strip 500 while maintaining a continuous supply in the direction of travel of the aluminum strip 500, preventing excessive friction between the material and the mold due to insufficient lubrication in localized areas.

[0029] In some embodiments, please refer to Figure 4 One end of the wheel body 321 is provided with a sealing plug 321b, which is detachably connected to the wheel body 321. The sealing plug 321b can connect the storage cavity to the outside. The sealing plug 321b can simplify the lubricant replenishment process, avoid uneven lubrication on the surface of the aluminum strip 500 due to insufficient lubricant, and reduce the risk of blockage of the lubricant delivery channel by residues in the storage cavity, ensuring stable lubrication effect during the stamping process of the aluminum strip 500.

[0030] In the specific implementation process, the sealing plug 321b is a structure used to seal the end of the wheel body 321. Specifically, it can adopt a threaded connection or a snap-fit ​​structure. The detachable design facilitates the replenishment of lubricant and the cleaning of the storage cavity.

[0031] When the lubricant level is low, the sealing plug 321b is removed to connect the storage chamber to the external feeding device, enabling rapid lubricant replenishment. Residue inside the storage chamber can be cleaned by injecting cleaning medium after removing the sealing plug 321b, preventing residue buildup from affecting lubricant delivery efficiency. The sealing plug 321b at the end of the wheel body 321 maintains a closed storage chamber after installation, preventing lubricant leakage.

[0032] In some embodiments, please refer to Figure 1 The conveyor roller 110 includes an abutment platform 111 adapted to the lubrication roller 320. A space for constraining the aluminum belt 500 is formed between the abutment platform 111 and the roller body 321. The abutment platform 111 can support the aluminum belt 500 from the bottom and bear the extrusion force from the roller body 321. The width of the abutment platform 111 is the same as the distance between the two limiting rings 322, and the length of the abutment platform 111 is greater than the diameter of the roller body 321. The cooperation between the abutment platform 111 and the limiting rings 322 forms a directional channel, simultaneously achieving position correction of the aluminum belt 500 during lubrication.

[0033] The contact platform 111 is a planar structure on the conveyor roller 110 that contacts the lubrication roller 320. Specifically, it can be a smooth metal platform, and its width matches the spacing of the limiting rings 322 to form a lateral limiting channel. The limiting rings 322 are annular protrusions installed on both sides of the wheel body 321. Specifically, they can be wear-resistant rubber rings or metal rings, which prevent lateral displacement by constraining the edge of the aluminum strip 500. The diameter of the wheel body 321 refers to the outer diameter of the cylindrical main body of the lubrication roller 320.

[0034] During its movement along the conveyor roller 110, the aluminum strip 500 is constrained within the width of the contact platform 111 by the limiting ring 322, preventing lateral displacement that could lead to uneven contact of the lubrication roller 320. As the lubrication roller 320 rotates, it rolls against the surface of the contact platform 111, and the outer sleeve 323, under pressure, evenly squeezes the lubricant from the storage cavity onto the surface of the aluminum strip 500. The length of the contact platform 111 is set to be greater than the diameter of the roller body 321, ensuring stable contact between the roller and the platform during rotation and preventing interruptions in lubricant application due to insufficient contact area.

[0035] In some embodiments, the lifting bracket 310 includes two side rods 311, a lifting rod 312, a rotating rod 313, and a locking member 314. One end of the side rod 311 is fixedly connected to the conveyor roller 110, and one end of the lifting rod 312 is movably inserted into the other end of the side rod 311. The lifting rod 312 can extend and retract relative to the side rod 311, thereby changing the overall length of the side rod 311 and the lifting rod 312. The locking member 314 is disposed between the lifting rod 312 and the side rod 311, and can loosen or lock the lifting rod 312 and the side rod 311. The two ends of the rotating rod 313 are respectively connected to the other ends of the two lifting rods 312. The wheel body 321 is rotatably connected to the rotating rod 313. By adjusting the overall length of the side rod 311 and the lifting rod 312, the degree of clamping of the sleeve can be changed, thereby changing the amount and uniformity of lubricant application, reducing frictional damage between the aluminum material and the mold during stamping, improving the forming quality of the aluminum cover, and extending the service life of the mold.

[0036] In the specific implementation, the side rod 311 refers to the support structure connecting the side of the conveyor roller 110, which can be made of metal rods or welded profiles, and is used to provide the installation base for the lifting bracket 310. The lifting rod 312 refers to the height-adjustable rod-shaped component, which can be made of a sleeve-type telescopic rod or a threaded adjusting rod, and the distance between the lubrication roller 320 and the aluminum belt 500 is adjusted by changing the insertion depth of the side rod 311. The rotating rod 313 refers to the transverse rod connecting the two lifting rods 312, which can be made of hollow steel pipe or solid steel shaft, and is used to support the lubrication roller 320 and transmit rotational motion. The locking component 314 refers to the fastening device that fixes the relative position of the lifting rod 312 and the side rod 311, which can be made of bolts, pins or buckles, to ensure that the lifting rod 312 remains stable after adjustment. The side rod 311 is fixed to the side of the conveyor roller 110, and the lifting rod 312 is inserted into the end of the side rod 311 and fixed by the locking component 314, forming a vertical support structure with adjustable height. The rotating rod 313 is horizontally connected to the top of the lifting rods 312 on both sides, and the lubrication roller 320 is connected to the rotating rod 313 through a bearing, so as to achieve free rotation around the axis of the rotating rod 313.

[0037] When it is necessary to adjust the contact pressure between the lubrication roller 320 and the aluminum strip 500, loosen the locking member 314 and move the lifting rod 312 to change the height position of the rotating rod 313, and then relock the locking member 314. The lubrication roller 320 rotates passively as the aluminum strip 500 moves, and the lubricant in the storage cavity is evenly applied to the surface of the aluminum strip 500 through the outer sleeve 323.

[0038] In some embodiments, the punching assembly 200 includes a hydraulic press 210 and multiple punching heads 220. The hydraulic press 210 is disposed on one side of the conveyor roller conveyor 110, and the punching heads 220 are disposed at the output end of the hydraulic press 210. The multi-punching head 220 layout significantly improves the output of aluminum caps per unit time. At the same time, the flexible control characteristics of hydraulic drive enable the equipment to quickly adapt to the processing requirements of aluminum strips 500 of different thicknesses, reducing the scrap rate.

[0039] In practical implementation, the hydraulic press 210 refers to a press driven by a hydraulic system, which can be a four-column or single-column structure, used to provide stable and controllable stamping pressure to complete the stamping of the aluminum strip 500. The punching head 220 refers to the forming die installed at the output end of the hydraulic press 210, which can be made of replaceable carbide material. By having multiple punching heads 220 work synchronously or alternately, the processing efficiency of the aluminum cover can be improved. The hydraulic press 210 is fixed to the side of the conveyor roller 110, and its output end points vertically toward the moving path of the aluminum strip 500.

[0040] When the aluminum strip 500 moves to the blanking station via the conveyor roller 110, the hydraulic press 210 drives the blanking head 220 to press down and complete the blanking action. Multiple blanking heads 220 can be arranged laterally along the output end of the hydraulic press 210 to form a multi-station synchronous stamping structure, or a time-sharing drive mode can be used to achieve continuous stamping. By adjusting the spacing and driving sequence of the blanking heads 220, the batch production needs of aluminum caps of different specifications can be adapted, reducing equipment downtime for adjustment.

[0041] In some embodiments, the transmission assembly 100 further includes a rotatable roller 120 and a verification unit 130. The roller 120 can automatically unwind the aluminum strip 500 to achieve a continuous supply of the aluminum strip 500. The verification unit 130 is located at one end of the transmission roller 110 near the roller 120 to detect the presence or absence of the aluminum strip 500, thereby reminding workers to change the roll in time and avoiding damage to the mold due to interruption of the aluminum strip 500 supply. This can effectively ensure the stability and efficiency of the aluminum cover processing process.

[0042] In practical implementation, the roller 120 is a rotating component used to carry and release the aluminum strip 500 coil. Specifically, it can adopt a roller structure with a drive motor, and the automatic unwinding of the aluminum strip 500 is achieved by motor drive. The verification unit 130 is a detection device used to identify the conveying status of the aluminum strip 500. Specifically, it can adopt a photoelectric sensor or a proximity switch, and determine whether the aluminum strip 500 is in a normal conveying position by emitting and receiving light signals.

[0043] The rotary wheel 120 unwinds the wound aluminum strip 500 through its rotational motion and conveys it to the transfer roller 110. The verification unit 130 monitors the presence of the aluminum strip 500 in real time at the initial position of the aluminum strip 500 entering the transfer roller 110. When the aluminum strip 500 is no longer needed, the verification unit 130 can promptly trigger an alarm signal or a stop command to prevent the blanking assembly 200 from running idle due to the absence of the aluminum strip 500, which could damage the mold.

[0044] In some embodiments, a production apparatus for an aluminum-plastic composite cover further includes a feeding assembly 400, which includes a blowing unit 410 disposed on one side of a hydraulic press 210. The blowing unit 410 can blow off the aluminum cover located on the punching head 220. The blowing unit 410 avoids the scratches caused to the surface of the aluminum cover by the traditional mechanical ejection mechanism through airflow stripping. At the same time, it optimizes the equipment layout space through process integration, thereby shortening the single punching cycle by about 0.3 seconds.

[0045] In the specific implementation process, the blowing unit 410 is a device that achieves material separation through airflow. Specifically, it can be implemented by using a high-pressure air nozzle or a centrifugal fan. Its installation position corresponds to the movement trajectory of the punching head 220 to ensure that the airflow covers the working area of ​​the punching head 220.

[0046] After the punching head 220 completes the stamping of the aluminum cap, the blowing unit 410 is activated to generate a directional airflow that acts on the surface of the punching head 220. The airflow pressure can be adjusted according to the adsorption force between the aluminum cap and the punching head 220, and the airflow direction is set to diffuse from the top of the punching head 220 towards the edge. During the retraction of the punching head 220 driven by the hydraulic press 210, the aluminum cap detaches from the surface of the punching head 220 under the action of the airflow and falls into the collection device along a predetermined trajectory. The working timing of the blowing unit 410 is linked to the stroke control of the hydraulic press 210, triggering the blowing action when the punching head 220 reaches its highest point.

[0047] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present utility model should be included within the present utility model.

Claims

1. An apparatus for producing an aluminum plastic composite lid, characterized by comprising: include: A conveying assembly, the conveying assembly including a conveyor roller conveyor along which the aluminum strip moves; A stamping assembly for stamping an aluminum strip located on the conveyor rollers to form an aluminum cover; A lubrication correction assembly includes a liftable lifting bracket and a rotatable lubrication roller. The two ends of the lifting bracket are respectively connected to the sides of the conveyor roller conveyor. The lubrication roller includes a wheel body, a limiting ring, and an outer sleeve for providing lubricant. The wheel body is rotatably connected to the middle of the lifting bracket, and the lifting bracket can adjust the distance between the wheel body and the aluminum belt. The outer sleeve is fitted onto the wheel body to roll and press against the aluminum belt, applying lubricant to the aluminum belt. The limiting ring is located on both sides of the wheel body to limit the lateral deviation of the aluminum belt.

2. The production apparatus for an aluminum-plastic composite cap according to claim 1, characterized in that, The wheel body has an internal storage cavity for holding lubricant, and the wheel body has a communication hole for connecting the outside to the storage cavity. The storage cavity can provide lubricant to the outer casing.

3. The production apparatus for an aluminum-plastic composite cap according to claim 2, characterized in that, Multiple connecting holes are equidistantly arranged along the axial direction of the wheel body to form hole groups, and multiple hole groups are equidistantly arranged around the central axis of the wheel body.

4. The production apparatus for an aluminum-plastic composite cover according to claim 3, characterized in that, One end of the wheel is provided with a sealing plug, which is detachably connected to the wheel and can connect the storage cavity to the outside.

5. The production apparatus for an aluminum-plastic composite cover according to claim 4, characterized in that, The conveyor roller includes an abutment platform adapted to the lubrication roller. The width of the abutment platform is the same as the distance between the two limiting rings, and the length of the abutment platform is greater than the diameter of the wheel body.

6. The production apparatus for an aluminum-plastic composite cap according to claim 1, characterized in that, The lifting support includes two side rods, a lifting rod, a rotating rod, and a locking component. One end of the side rod is fixedly connected to the conveyor roller, and one end of the lifting rod is movably inserted into the other end of the side rod. The locking component is disposed between the lifting rod and the side rod to fix their positions. Both ends of the rotating rod are respectively connected to the other ends of the two lifting rods, and the wheel is rotatably connected to the rotating rod.

7. The production apparatus for an aluminum-plastic composite cap according to claim 1, characterized in that, The punching assembly includes a hydraulic press and multiple punching heads. The hydraulic press is located on one side of the conveyor roller conveyor, and the punching heads are located at the output end of the hydraulic press. The punching heads are capable of punching aluminum strips to produce aluminum covers.

8. The production apparatus for an aluminum-plastic composite cover according to claim 1, characterized in that, The transmission assembly also includes a rotatable roller and a verification unit. The roller is capable of automatically unwinding the aluminum strip. The verification unit is located at one end of the transmission roller conveyor near the roller to detect the presence or absence of the aluminum strip.

9. The production apparatus for an aluminum-plastic composite cap according to claim 7, characterized in that, It also includes a feeding assembly, which includes a blower unit disposed on one side of the hydraulic press, the blower unit being able to blow off the aluminum cap located on the punching head.

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