Automobile glass heat insulation film cutting device

Abstract

The utility model relates to an automobile glass heat insulation film cutting device, which belongs to the technical field of heat insulation film cutting, and is provided with a driving assembly, the driving assembly comprises a driving roller and a driving shell, the driving roller is rotatably arranged in the driving shell, the driving shell is provided with a moving slot hole, and the moving slot hole penetrates through the driving shell; the end opening, close to the feeding assembly, of the movable groove hole is a feeding opening, the end opening, close to the cutting assembly, of the movable groove hole is a discharging opening, the feeding assembly conveys a heat insulation film to the discharging opening of the movable groove hole from the feeding opening of the movable groove hole, the cutting assembly cuts the heat insulation film located outside the discharging opening of the movable groove hole, and after cutting is completed, the cutting assembly cuts the heat insulation film out of the discharging opening of the movable groove hole. And the driving roller rotates to continuously convey the uncut heat insulation film to the position of the cutting assembly for cutting.

Description

Automotive glass heat insulation film cutting device Technical Field

[0001] This utility model belongs to the field of heat insulation film cutting technology, specifically relating to a device for cutting heat insulation film for automotive glass. Background Technology

[0002] During the production of automotive glass, a heat insulation film needs to be wrapped around its surface. Currently, in order to save production costs, the heat insulation film wrapped around automotive glass is of a fixed length, which means that a cutting device is needed to cut the heat insulation film to obtain a fixed length of heat insulation film to wrap around the automotive glass.

[0003] For example, the utility model patent with patent authorization announcement number CN221604501U discloses a cutting device for the production of aerogel heat insulation film, which addresses the problems of insufficient cutting precision, damage to the aerogel heat insulation film, and uneven cutting edges. The device includes a support plate, a film winding mechanism, a cutting mechanism, and a pressing mechanism. The film winding mechanism is located above and in front of the support plate, the cutting mechanism is located behind the film winding mechanism, and the pressing mechanism is located inside and below the cutting mechanism. Support frames are symmetrically and fixedly connected to the top of the support plate, and mounting plates are fixedly connected between the support frames.

[0004] Based on the search of patent grant announcement numbers and considering their shortcomings, the following was found:

[0005] Existing heat insulation film cutting devices all require manual pulling of the uncut heat insulation film to the bottom of the cutting mechanism after cutting a certain length of heat insulation film. This operation method relies on manual pulling of the uncut heat insulation film to the bottom of the cutting mechanism. However, workers are prone to inattentiveness during operation, resulting in a slow speed at which the uncut heat insulation film is pulled to the bottom of the cutting mechanism, which reduces the overall production speed and efficiency of automotive glass. Summary of the Invention

[0006] To address the problem that existing heat insulation film cutting devices require manual pulling of the uncut film to the bottom of the cutting mechanism after cutting a predetermined length, which is inefficient due to worker inattention, this invention provides an automotive glass heat insulation film cutting device.

[0007] The objective of this utility model can be achieved through the following technical solutions:

[0008] An automotive glass heat insulation film cutting device includes a worktable, and sequentially includes a feeding assembly, a driving assembly, and a cutting assembly disposed on the worktable along the moving direction of the heat insulation film. The driving assembly includes a driving roller and a driving housing. The driving housing has an installation slot and a moving slot. The moving slot passes through the driving housing and is interconnected with the installation slot. The driving roller is rotatably disposed in the installation slot. The distance between the driving roller and the bottom surface of the moving slot is equal to the thickness of the heat insulation film. The feeding assembly is used to convey the heat insulation film into the moving slot. The cutting assembly is used to cut the heat insulation film located at the other end of the moving slot.

[0009] As a preferred embodiment of this utility model, the driving component is provided in two sets, and the two sets of driving components are arranged on the worktable, with the two sets of driving components located at both ends of the cutting component.

[0010] As a preferred technical solution of this utility model, it also includes a lifting cylinder and a lifting block. The lifting cylinder is vertically arranged on the worktable, and the lifting block is connected to the output end of the lifting cylinder. The lifting block is located between the two drive housings, and the setting height of the surface of the lifting block can be locked or released to ensure that its setting height is flush with the bottom surface of the moving slot.

[0011] As a preferred technical solution of this utility model, along the moving direction of the heat insulation film, the end of the lifting block near the previous driving housing is inclined, and the height of the inclined end of the lifting block near the previous driving housing is lower than the setting height of the moving slot of the previous driving housing.

[0012] As a preferred technical solution of this utility model, along the moving direction of the heat insulation film, the end of the lifting block near the next driving housing is inclined, and the height of the inclined end of the lifting block near the next driving housing is higher than the setting height of the moving slot of the next driving housing.

[0013] As a preferred technical solution of this utility model, it further includes two limiting blocks, which are disposed opposite to each other on the lifting block, and the distance between the two limiting blocks is equal to the width of the moving slot.

[0014] As a preferred technical solution of this utility model, the cutting assembly includes a cutting cylinder, a base block, and a cutting block. The cutting cylinder is suspended on the top of the workbench. The base block is connected to the output end of the cutting cylinder. The cutting block is connected to the base block. The cutting block is located directly above the lifting block. The cutting block is used to cut the heat insulation film located on the lifting block.

[0015] As a preferred embodiment of this utility model, the cutting assembly further includes two sets of pressing units, each set of pressing units corresponding to one of the two sets of driving housings. Each pressing unit is used to press the heat insulation film inside the corresponding driving housing. The pressing unit includes a pressing block, which is slidably disposed on the bottom surface of the base block. The top of the driving housing is provided with a connecting slot, which is connected to the moving slot. The pressing block presses the heat insulation film through the connecting slot.

[0016] As a preferred embodiment of this utility model, the pressing unit further includes a connecting block and a pressing spring. The connecting block is vertically connected to the bottom block. A pressing groove is provided on the top of the pressing block. The other end of the connecting block is slidably disposed in the pressing groove. The pressing spring is disposed in the pressing groove. The two ends of the pressing spring are respectively connected to the connecting block and the pressing block.

[0017] As a preferred embodiment of the present invention, the feeding assembly further includes a frame, a feeding motor, and a feeding roller. The frame is mounted on the worktable, the feeding motor is mounted on the frame, the output end of the feeding motor is coaxially connected to the feeding roller, and the tubular heat insulation film is coaxially mounted on the feeding roller.

[0018] The beneficial effects of this utility model are as follows:

[0019] The system incorporates a drive assembly, which includes a drive roller and a drive housing. The drive roller is rotatably mounted within the drive housing. The drive housing has a sliding slot that extends through it. One end of the sliding slot near the feeding assembly is the inlet, and the other end near the cutting assembly is the outlet. The feeding assembly transports the heat insulation film from the inlet to the outlet of the sliding slot. The cutting assembly cuts the heat insulation film outside the outlet. After cutting, the drive roller rotates to continue transporting uncut heat insulation film to the cutting assembly. Cutting is performed at the location of the cutting component. The rotation of the drive roller is used to transport the uncut heat insulation film to the cutting component location instead of manually transporting the uncut heat insulation film to the cutting component location. This not only eliminates the potential safety hazards for workers during the manual transport of the uncut heat insulation film to the cutting component, but also solves the problem of workers being less focused during the work, thus reducing the slow speed at which the uncut heat insulation film is pulled to the bottom of the cutting mechanism, which reduces the overall production speed and efficiency of automotive glass. Attached Figure Description

[0020] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to the accompanying drawings.

[0021] Figure 1 is an overall view of the automotive glass heat insulation film cutting device of this utility model;

[0022] Figure 2 is a front view of the automotive glass heat insulation film cutting device of this utility model;

[0023] Figure 3 is an overall view of the feeding assembly of the automotive glass heat insulation film cutting device of this utility model;

[0024] Figure 4 is an internal view of the drive housing of the automotive glass heat insulation film cutting device of this utility model;

[0025] Figure 5 is an overall view of the cutting components of the automotive glass heat insulation film cutting device of this utility model;

[0026] Figure 6 is a diagram of the pressing unit of the automotive glass heat insulation film cutting device of this utility model;

[0027] Figure 7 is an overall view of the lifting block of the automotive glass heat insulation film cutting device of this utility model;

[0028] Figure 8 is a cross-sectional view of the lifting block of the automotive glass heat insulation film cutting device of this utility model.

[0029] Explanation of main symbols

[0030] In the diagram: 1. Workbench; 2. Feeding assembly; 201. Frame; 202. Feeding motor; 203. Feeding roller; 3. Drive assembly; 301. Drive roller; 302. Drive housing; 3021. Mounting slot; 3022. Moving slot; 3023. Connecting slot; 4. Top plate; 5. Lifting cylinder; 6. Lifting block; 7. Limiting block; 8. Cutting assembly; 801. Cutting cylinder; 802. Bottom block; 803. Cutting block; 9. Pressing unit; 901. Pressing block; 902. Connecting block; 903. Pressing spring; 10. Auxiliary roller. Detailed Implementation

[0031] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0032] Please refer to Figures 1-8. This embodiment provides an automotive glass heat insulation film cutting device, including a worktable 1. Along the moving direction of the heat insulation film, it also includes a feeding assembly 2, a driving assembly 3, and a cutting assembly 8, all disposed on the worktable 1. The driving assembly 3 includes a driving roller 301 and a driving housing 302. The driving housing 302 has an mounting slot 3021 and a moving slot 3022. The moving slot 3022 penetrates the driving housing 302 and communicates with the mounting slot 3021. The driving roller 301 is rotatably... The drive roller 301 is positioned within the mounting slot 3021, and the distance between the bottom surface of the drive roller 301 and the movable slot 3022 is equal to the thickness of the heat insulation film. The feeding assembly 2 is used to convey the heat insulation film into the movable slot 3022, and the cutting assembly 8 is used to cut the heat insulation film located at the other end of the movable slot 3022. A drive assembly 3 is provided, comprising a drive roller 301 and a drive housing 302. The drive roller 301 is rotatably disposed within the drive housing 302, and the drive housing 302 has a movable slot 3022. 2. A drive housing 302 is pierced. The port of the moving slot 3022 near the feeding assembly 2 is the inlet, and the port of the moving slot 3022 near the cutting assembly 8 is the outlet. The feeding assembly 2 conveys the heat insulation film from the inlet to the outlet of the moving slot 3022. The cutting assembly 8 cuts the heat insulation film outside the outlet of the moving slot 3022. After cutting, the drive roller 301 rotates to continue conveying the uncut heat insulation film to the cutting assembly 8 for cutting. The rotation of the moving roller 301 to transport the uncut heat insulation film to the cutting assembly 8 replaces the original manual method of transporting the uncut heat insulation film to the cutting assembly 8. This not only eliminates the potential safety hazards for workers during the manual transport of the uncut heat insulation film to the cutting assembly 8, but also solves the problem of workers being less focused during work, thus reducing the slow speed at which the uncut heat insulation film is manually pulled to the bottom of the cutting mechanism, which reduces the overall production speed and efficiency of automotive glass.

[0033] Furthermore, to facilitate the cutting of the heat insulation film by the cutting assembly 8, this solution provides two sets of driving assemblies 3, which are arranged on the worktable 1 and located at both ends of the cutting assembly 8. With this arrangement, along the moving direction of the heat insulation film, after the heat insulation film located in the first driving housing 302 moves to the heat insulation film located in the second driving housing 302, the heat insulation film located in the two driving housings 302 is in a suspended state. The cutting assembly 8 starts to work and cuts the heat insulation film located between the two driving housings 302, making it easier to complete the cutting of the heat insulation film.

[0034] As can be seen from the above embodiments, since the setting height of the movable slot 3022 located in the first drive housing 302 is the same as the setting height of the movable slot 3022 located in the second drive housing 302, it is difficult for the heat insulation film located in the first drive housing 302 to be transported to the movable slot 3022 located in the second drive housing 302. Based on this, this solution is provided with a lifting cylinder 5 and a lifting block 6. The lifting cylinder 5 is vertically set on the worktable 1, and the lifting block 6 is connected to the output end of the lifting cylinder 5. The lifting block 6 is located between the two drive housings 302. Between them, the height of the lifting block 6 surface can be locked or unlocked to ensure it is flush with the bottom surface of the moving slot 3022. With the lifting block 6 and lifting cylinder 5, when the lifting cylinder 5 controls the lifting block 6 to rise, making the height of the lifting block 6 surface flush with the bottom surface of the moving slot 3022, the heat insulation film located in the first drive housing 302 can be smoothly transferred to the moving slot 3022 located in the second drive housing 302 via the lifting block 6, thus realizing the transport of the heat insulation film. Next, when the lifting cylinder 5 controls the height of the lifting block 6 to fall, making the height of the lifting block 6 surface lower than the bottom surface of the moving slot 3022, the cutting assembly 8 is controlled to cut the heat insulation film located between the two drive housings 302.

[0035] In actual operation, since it is difficult for the lifting cylinder 5 to move the lifting block 6 to the same horizontal level as the surface height of the lifting block 6 and the bottom height of the moving slot 3022 of the drive housing 302, in order to improve the success rate of the heat insulation film located in the moving slot 3022 moving to the surface of the lifting block 6, this solution is to tilt the lifting block 6 at one end near the previous drive housing 302 along the moving direction of the heat insulation film. The height of the tilted end of the lifting block 6 near the previous drive housing 302 is lower than the setting height of the moving slot 3022 of the previous drive housing 302. With this setting, the heat insulation film located in the moving slot 3022 of the previous drive housing 302 can be moved to the top surface of the lifting block 6 through the tilted end of the lifting block 6.

[0036] Similarly, in actual operation, since it is difficult for the lifting cylinder 5 to move the lifting block 6 to the same horizontal level as the surface height of the lifting block 6 and the bottom height of the moving slot 3022 of the drive housing 302, in order to improve the success rate of the heat insulation film on the surface of the lifting block 6 moving into the moving slot 3022 of the next drive housing 302, this solution is to tilt the end of the lifting block 6 near the next drive housing 302 along the moving direction of the heat insulation film. The height of the tilted end of the lifting block 6 near the next drive housing 302 is higher than the setting height of the moving slot 3022 of the next drive housing 302. With this setting, the heat insulation film on the top surface of the lifting block 6 can be moved into the moving slot 3022 of the next drive housing 302 through the tilted end of the lifting block 6.

[0037] In addition, it is worth noting that this solution also includes two limiting blocks 7, which are disposed opposite to each other on the lifting block 6 and are attached to the top surface of the lifting block 6. The distance between the two limiting blocks 7 is equal to the width of the moving slot 3022. By setting the limiting blocks 7, the heat insulation film can be restricted from shifting during the movement of the top surface of the lifting block 6.

[0038] To further facilitate the movement of the heat insulation film within the two limiting blocks 7, this solution also includes a top plate 4, which is positioned on top of the two limiting blocks 7. The top plate 4, the two limiting blocks 7, and the lifting block 6 together form a sliding space, within which the heat insulation film is slidably positioned.

[0039] It should be noted that, due to the inclined arrangement of both ends of the lifting block 6 in this design, with the inclined ends located within the sliding space, and because the heat insulation film has deformable properties, when the heat insulation film slides into the sliding space, at the intersection of the inclined and horizontal ends of the lifting block 6, the foremost heat insulation film will contact the top plate 4 and stop moving. However, the subsequent heat insulation films will continue to move forward due to inertia, causing the foremost heat insulation film to bend at the intersection of the inclined and horizontal ends of the lifting block 6, thus causing inconvenience in subsequent use. Therefore, to solve this problem, this design provides two auxiliary rollers 10, each corresponding to one of the two intersections of the inclined and horizontal ends of the lifting block 6. Each auxiliary roller 10 is rotatably positioned at the top intersection of the corresponding inclined and horizontal ends of the lifting block 6. It should be noted that the bottom of the auxiliary roller 10 located near the previous drive housing 302... The line is horizontally positioned relative to the horizontal end of the lifting block 6, guiding the heat insulation film from the inclined end of the lifting block 6 to the horizontal end of the lifting block 6. The bottom tangent of the auxiliary roller 10 located near the next drive housing 302 is horizontally positioned relative to the inclined end of the lifting block 6, guiding the heat insulation film from the horizontal end of the lifting block 6 to the inclined end of the lifting block 6. The auxiliary roller 10 is located within the sliding space, and the distance between the auxiliary roller 10 and the intersection of the inclined and horizontal ends of the lifting block 6 is equal to the thickness of the heat insulation film. By providing the rotatable auxiliary roller 10, along the moving direction of the heat insulation film, when the foremost heat insulation film passes the intersection of the inclined and horizontal ends of the first lifting block 6, the heat insulation film will come into contact with the auxiliary roller 10. Thus, the auxiliary roller 10 can guide the foremost heat insulation film to move towards the horizontal end of the lifting block 6, preventing the heat insulation film from bending when passing the intersection of the inclined and horizontal ends of the lifting block 6. Similarly, when the frontmost heat insulation film passes the intersection of the inclined end and the horizontal end of the second lifting block 6, the heat insulation film will come into contact with the auxiliary roller 10. The auxiliary roller 10 can then guide the frontmost heat insulation film to move toward the inclined end of the lifting block 6, thus preventing the front heat insulation film from bending when it passes the intersection of the inclined end and the horizontal end of the lifting block 6.

[0040] Specifically, the cutting assembly 8 of this solution includes a cutting cylinder 801, a base block 802, and a cutting block 803. The cutting cylinder 801 is suspended on the top of the workbench 1. The base block 802 is connected to the output end of the cutting cylinder 801. The cutting block 803 is connected to the base block 802 and is located directly above the lifting block 6. The cutting block 803 is used to cut the heat insulation film located on the lifting block 6. By providing the cutting cylinder 801, the output end of the cutting cylinder 801 can extend and retract to control the cutting block 803 to move closer to the heat insulation film, thereby achieving the cutting process of the heat insulation film.

[0041] According to the above embodiments, in order to improve the cutting effect of the cutting block 803 on the heat insulation film, it is necessary for the cutting block 803 to press both ends of the heat insulation film before cutting it, so as to ensure that the position of the heat insulation film will not move before the cutting block 803 cuts the heat insulation film. Based on this, the cutting component 8 of this solution also includes two sets of pressing units 9. The two sets of pressing units 9 are matched one-to-one with the two sets of driving housings 302. Each pressing unit 9 is used to press the heat insulation film in the corresponding driving housing 302. The pressing unit 9 includes a pressing block 901, which is slidably disposed on the bottom surface of the bottom block 802. The top of the driving housing 302 is provided with a connecting slot 3023. 23 is interconnected with the movable slot 3022, and the pressing block 901 presses the heat insulation film through the connecting slot 3023. It should be noted beforehand that the initial height of the pressing block 901 in this solution is lower than the height of the cutting block 803. Therefore, when the cutting cylinder 801 starts to work, the pressing block 901 will first pass through the connecting slot 3023 to press the heat insulation film. Then the cutting cylinder 801 continues to work until the cutting block 803 cuts the heat insulation film. During this period, the pressing block 901 will continuously slide vertically relative to the bottom block 802, so that while the pressing block 901 is pressing the heat insulation film, the height of the pressing block 901 and the height of the cutting block 803 are constantly changing.

[0042] Furthermore, to enable the pressing block 901 to slide vertically relative to the cutting block 803, the pressing unit 9 of this solution also includes a connecting block 902 and a pressing spring 903. The connecting block 902 is vertically connected to the bottom block 802. A pressing groove is provided on the top of the pressing block 901. The other end of the connecting block 902 is slidably disposed in the pressing groove. The pressing spring 903 is disposed in the pressing groove, and both ends of the pressing spring 903 are respectively connected to the connecting block 902 and the pressing block 803. 1. Connection; By setting the connecting block 902 and the pressing spring 903, after the pressing block 901 presses the heat insulation film, the cutting cylinder 801 continues to work. At this time, the pressing block 901 will slide along the axial direction of the connecting block 902, compressing the pressing spring 903 until the cutting block 803 cuts the heat insulation film; then, after the cutting cylinder 801 retracts its output end, the cutting block 803 will reset, and the pressing block 901 will also reset under the force of the pressing spring 903.

[0043] Furthermore, the feeding assembly 2 of this solution also includes a frame 201, a feeding motor 202, and a feeding roller 203. The frame 201 is set on the workbench 1, the feeding motor 202 is set on the frame 201, and the output end of the feeding motor 202 is coaxially connected to the feeding roller 203. The heat insulation film in the tube is coaxially set on the feeding roller 203. By setting the feeding motor 202, the feeding motor 202 controls the feeding roller 203 to rotate, thereby realizing the rotation of the heat insulation film tube coaxially set on the feeding roller 203. The heat insulation film that falls due to gravity can be automatically transferred by manually pulling it into the previous drive housing 302.

[0044] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. An automotive glass heat insulation film cutting device, comprising a worktable, characterized in that: Along the direction of movement of the heat insulation film, the assembly also includes a feeding component, a driving component, and a cutting component disposed on the worktable. The driving component includes a driving roller and a driving housing. The driving housing has an installation slot and a moving slot. The moving slot passes through the driving housing and is connected to the installation slot. The driving roller is rotatably disposed in the installation slot. The distance between the driving roller and the bottom surface of the moving slot is equal to the thickness of the heat insulation film. The feeding component is used to convey the heat insulation film into the moving slot. The cutting component is used to cut the heat insulation film located at the other end of the moving slot.

2. The automotive glass heat insulation film cutting device according to claim 1, characterized in that: The drive assembly is provided in two sets, which are arranged on the worktable and located at both ends of the cutting assembly.

3. The automotive glass heat insulation film cutting device according to claim 1, characterized in that: It also includes a lifting cylinder and a lifting block. The lifting cylinder is vertically mounted on the worktable. The lifting block is connected to the output end of the lifting cylinder. The lifting block is located between the two drive housings. The setting height of the surface of the lifting block can be locked or released to ensure that its setting height is flush with the bottom surface of the moving slot.

4. The automotive glass heat insulation film cutting device according to claim 3, characterized in that: Along the direction of movement of the heat insulation film, the lifting block is inclined at one end near the previous driving housing, and the height of the inclined end of the lifting block near the previous driving housing is lower than the setting height of the moving slot of the previous driving housing.

5. The automotive glass heat insulation film cutting device according to claim 3, characterized in that: Along the direction of movement of the heat insulation film, the lifting block is inclined at one end near the next drive housing, and the height of the inclined end of the lifting block near the next drive housing is higher than the setting height of the moving slot of the next drive housing.

6. The automotive glass heat insulation film cutting device according to claim 3, characterized in that: It also includes two limiting blocks, which are disposed opposite to each other on the lifting block, and the distance between the two limiting blocks is equal to the width of the moving slot.

7. The automotive glass heat insulation film cutting device according to claim 3, characterized in that: The cutting assembly includes a cutting cylinder, a base block, and a cutting block. The cutting cylinder is suspended on the top of the workbench. The base block is connected to the output end of the cutting cylinder. The cutting block is connected to the base block and is located directly above the lifting block. The cutting block is used to cut the heat insulation film located on the lifting block.

8. The automotive glass heat insulation film cutting device according to claim 7, characterized in that: The cutting assembly further includes two sets of pressing units, which correspond one-to-one with the two sets of driving housings. Each pressing unit is used to press the heat insulation film inside the corresponding driving housing. The pressing unit includes a pressing block, which is slidably disposed on the bottom surface of the base block. The top of the driving housing is provided with a connecting slot, which is connected to the moving slot. The pressing block presses the heat insulation film through the connecting slot.

9. The automotive glass heat insulation film cutting device according to claim 8, characterized in that: The pressing unit further includes a connecting block and a pressing spring. The connecting block is vertically connected to the bottom block. The top of the pressing block has a pressing groove. The other end of the connecting block is slidably disposed in the pressing groove. The pressing spring is disposed in the pressing groove. The two ends of the pressing spring are respectively connected to the connecting block and the pressing block.

10. The automotive glass heat insulation film cutting device according to claim 1, characterized in that: The feeding assembly also includes a frame, a feeding motor, and a feeding roller. The frame is mounted on the worktable, the feeding motor is mounted on the frame, and the output end of the feeding motor is coaxially connected to the feeding roller. The heat insulation film in the tube is coaxially mounted on the feeding roller.

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