Film connecting adsorption device of coating machine

Abstract

The utility model discloses a film connecting adsorption device of a coating machine. The film connecting adsorption device comprises a base, an adsorption platform, a covering assembly and a covering control assembly, the adsorption platform extends in the length direction of the base and is fixedly arranged on the base, a hollow cavity is formed in the adsorption platform, the hollow cavity is communicated with an external vacuum device, a plurality of adsorption holes are formed in the top of the adsorption platform, and the adsorption holes are communicated with the hollow cavity. The covering assembly is arranged at the end of the base and comprises a covering belt capable of being folded and unfolded in the length direction of the adsorption platform, and the covering belt is used for covering at least part of the adsorption holes. The covering control assembly is arranged on the base and used for controlling the covering belt to be wound and unwound. The film receiving adsorption device of the coating machine can cover the adsorption holes of the adsorption platform, so that the adsorption force of the adsorption platform is ensured, and the extension range of the covering belt can be regulated and controlled so as to adapt to film materials with different widths.

Description

Technical Field

[0001] The utility model belongs to the technical field of coating machines, and in particular relates to a film adsorption device for a coating machine. Background Art

[0002] The automatic film splicing unit is an important equipment in the field of film production. It is usually used to connect two rolls of film materials to ensure the continuity and production efficiency of industrial production. The film splicing unit uses vacuum adsorption to adsorb the adjacent head and tail sections of the two rolls of film materials on the adsorption platform, and then connects the head and tail sections of the two rolls of film materials by tape or other means. Since the width of the film material is not unique, when the width of the film material is less than the length of the adsorption platform, the adsorption holes on the adsorption platform cannot be covered by the film material, and the sealing of the vacuum adsorption is affected, which will lead to the adsorption effect of the adsorption platform on the film material is not ideal, and the film material is easy to shift from the adsorption platform.

[0003] The information disclosed in this background technology section is only intended to increase the understanding of the overall background of the present invention, and should not be regarded as acknowledging or suggesting in any form that the information constitutes the prior art already known to a person skilled in the art. Utility Model Content

[0004] The utility model aims to provide a coating machine film adsorption device, which can improve the adsorption effect of the adsorption platform on the film material, thereby ensuring good film connection quality.

[0005] In order to achieve the above-mentioned purpose, a specific embodiment of the utility model provides a coating machine film adsorption device, which includes a base, an adsorption platform, a covering assembly and a covering control assembly. The adsorption platform extends along the length direction of the base and is fixedly arranged on the base. The interior of the adsorption platform has a hollow cavity, and the hollow cavity is connected to an external vacuum device. The top of the adsorption platform is provided with a plurality of adsorption holes, and the plurality of adsorption holes are connected to the hollow cavity. The covering assembly is arranged at the end of the base, and the covering assembly includes a covering belt that can be retracted and extended along the length direction of the adsorption platform, and the covering belt is used to cover at least part of the adsorption holes. The covering control assembly is arranged on the base, and is used to control the retraction and extension of the covering belt.

[0006] In one or more embodiments of the utility model, the covering assembly further includes: a storage base and a slide. The storage base is fixedly arranged at one end of the base, a rotating shaft is arranged on the storage base, and the covering belt can be rolled up on the rotating shaft; the slide is slidably arranged on the base and connected to one end of the covering belt; the slide can reciprocate along the length direction of the adsorption platform and drive the covering belt to be retracted and released along the length direction of the adsorption platform.

[0007] In one or more embodiments of the present invention, a clockwork device is provided on the rotating shaft for driving the covering tape to be rolled up on the rotating shaft.

[0008] In one or more embodiments of the utility model, the base is provided with two slide rails in parallel along the length direction of the base, and the slide seat can move along the slide rails. Preferably, limiting portions are symmetrically provided on both sides of the bottom of the slide seat, and each limiting portion is clamped in one of the slide rails.

[0009] In one or more embodiments of the utility model, the cover control assembly includes: a screw rod, a nut and a driving unit. The screw rod is rotatably arranged in the base along the length direction of the base; the nut is fixedly connected to the slide seat and sleeved on the screw rod to form a screw rod nut pair; the driving unit is connected to the screw rod and is used to drive the screw rod to rotate.

[0010] In one or more embodiments of the present invention, the number of the covering components is two, and they are respectively arranged at two ends of the base along the length direction of the base.

[0011] In one or more embodiments of the present invention, threads with opposite spiral directions are arranged at both ends of the screw rod, and the driving unit drives the screw rod to rotate to drive the slide seats arranged at both ends of the base to approach or move away from the screw rod in the same direction.

[0012] In one or more embodiments of the present invention, the driving part is an adjusting hand wheel, the adjusting hand wheel is coaxially arranged with the screw rod, and is used to drive the screw rod to rotate. Alternatively, the driving motor is connected to the screw rod, and is used to drive the screw rod to rotate.

[0013] In one or more embodiments of the present invention, a length meter is provided on the screw rod for determining the moving distance of the covering tape.

[0014] Compared with the prior art, in the film adsorption device for coating machine of the utility model, the covering control component controls the movement of the covering belt to cover at least part of the adsorption holes on the adsorption platform to maintain the suction of the adsorption platform, thereby preventing the film material from falling off or shifting from the adsorption platform, thereby improving the adsorption capacity of the film adsorption device for coating machine. The moving range of the covering belt can be adjusted to adapt to film materials of different widths. A clockwork device is provided on the rotating shaft to realize the automatic retraction of the covering belt. The setting of the length meter can realize the accurate measurement and control of the moving distance of the covering belt. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the utility model, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0016] Figure 1 It is a first stereoscopic view of a film adsorption device for a coating machine in one embodiment of the utility model;

[0017] Figure 2 This is an internal structural diagram of a film adsorption device of a coating machine in one embodiment of the utility model;

[0018] Figure 3 This is a schematic diagram of the working state of the film adsorption device of the coating machine in one embodiment of the utility model;

[0019] Figure 4 for Figure 3 Enlarged view of area A in the middle;

[0020] Figure 5 This is a diagram of the internal structure of a storage base in one embodiment of the utility model.

[0021] Description of main reference numerals:

[0022] 1-base, 11-slide rail, 2-adsorption platform, 21-adsorption hole, 3-covering assembly, 31-covering belt, 32-storage base, 321-rotating shaft, 322-clockwork device, 33-slide seat, 331-limiting part, 4-covering control assembly, 41-screw rod, 42-driving part, 5-length measuring instrument. DETAILED DESCRIPTION

[0023] In order to enable those skilled in the art to better understand the technical solutions in the present invention, the technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0024] As described in the background technology, in the existing coating machine film adsorption device, when the width of the film material is smaller than the length of the adsorption platform, the adsorption holes on the adsorption platform cannot be completely covered by the film material, and the sealing of the vacuum adsorption is affected, which will lead to unsatisfactory adsorption effect of the adsorption platform on the film material. In order to ensure a good adsorption effect, tape is usually manually pasted to block the redundant adsorption holes on both sides of the film material, but manual tape pasting is time-consuming and laborious, and repeated pasting will cause residual glue on the adsorption platform, which will scratch the surface of the film material over time. The coating machine film adsorption device according to the embodiment of the utility model aims to solve this problem by providing a covering device to cover the adsorption holes.

[0025] like Figure 1 As shown, a coating machine film adsorption device in one embodiment of the utility model includes a base 1, an adsorption platform 2, a covering component 3 and a covering control component 4. The adsorption platform 2 extends along the length direction of the base 1 and is fixedly arranged on the base 1. The adsorption platform 2 has a hollow cavity inside, and the hollow cavity is connected to an external vacuum device so that the external vacuum device can evacuate air. A plurality of adsorption holes 21 are opened on the top of the adsorption platform 2, and the plurality of adsorption holes 21 are connected to the hollow cavity for adsorbing the film material on the surface of the adsorption platform 2.

[0026] The covering assembly 3 is arranged at the end of the base 1. The covering assembly 3 includes a covering belt 31 that can be retracted along the length direction of the adsorption platform 2, and the covering belt 31 is used to cover at least part of the top of the adsorption platform 2. The covering belt 31 can cover some unused adsorption holes 21, thereby ensuring the adsorption force of the adsorption platform 2. The covering control assembly 4 is arranged on the base 1, and is used to control the retraction and extension of the covering belt 31.

[0027] In the above embodiment, the coating machine film adsorption device is provided with a covering component 3 including a covering belt 31 to cover the adsorption holes 21 that cannot be covered by the film material to improve the adsorption effect, so it can adapt to film materials of different widths. The covering control component 4 controls the movement of the covering belt 31 to cover the adsorption holes 21 on the adsorption platform 2 to maintain the suction force of the adsorption platform 2 and prevent the film material from falling off or shifting from the adsorption platform 2.

[0028] In one embodiment, the covering assembly 3 further includes a storage base 32 and a slide 33. The storage base 32 is fixedly disposed at one end of the base 1 and a rotating shaft 321 is disposed on the storage base 32. The covering belt 31 can be rolled up on the rotating shaft 321 and pulled out from the rotating shaft 321 under the control of the covering control assembly 4. The slide 33 is slidably disposed on the base 1 and connected to one end of the covering belt 31. The slide 33 can reciprocate along the length direction of the adsorption platform 2 under the control of the covering control assembly 4, thereby realizing the retraction and release of the covering belt 31 along the length direction of the adsorption platform 2.

[0029] Further, such as Figure 5 As shown, in order to realize the automatic winding of the cover belt 31, a clockwork device 322 is provided on the rotating shaft 321. When the slide 33 approaches the storage base 32, the cover belt 31 can be automatically wound onto the rotating shaft 321 and stored in the storage base 32 under the action of the clockwork device 322.

[0030] like Figure 2 As shown, two slide rails 11 are arranged in parallel on the base 1 along the length direction of the base 1, and the slide seat 33 can move along the linear slide rail 11, thereby driving the cover belt 31 to be retracted and released. In one embodiment, in order to prevent the slide seat 33 from deflecting or flipping during the movement, limiting parts 331 are arranged on both sides of the bottom of the slide seat 33, and the two limiting parts 331 of the slide seat 33 are respectively clamped on one of the slide rails 11. The slide rail 11 cooperates with the limiting parts 331 so that the slide seat 33 can only move along the extension direction of the slide rail 11, preventing the slide seat 33 from flipping relative to the slide rail 11. Preferably, the limiting parts 331 are sliding shoes matching the slide rail 11.

[0031] The covering control component 4 controls the retraction and extension of the covering belt 31. Specifically, Figure 2 and Figure 3 As shown, the cover control assembly 4 includes: a screw rod 41, a nut (not shown) and a driving part 42. The screw rod 41 is rotatably arranged in the base 1 along the length direction of the base 1, and the nut is fixed to the bottom of the slide 33 and cooperates with the screw rod 41 to form a screw rod nut pair. The driving part 42 is connected to the screw rod 41. The driving part 42 can drive the screw rod 41 to rotate and then drive the slide 33 to move horizontally along the extension direction of the screw rod 41 through the screw rod nut pair.

[0032] Preferably, both ends of the base 1 are provided with a cover assembly 3. In this embodiment, the slide 33 of each cover assembly 3 is connected to the screw rod 41 through a nut (not shown), and both ends of the screw rod 41 are provided with threads with opposite spiral directions. Since the screw rod 41 is provided with threads with opposite spiral directions, the slides 33 provided at both ends of the base 1 can move in the same direction or in opposite directions along the screw rod 41. Specifically, when the driving unit 42 drives the screw rod 41 to rotate, the nuts at the bottom of the two slides 33 can be relatively close to or away from each other, thereby driving the two slides 33 to slide in the same direction or in opposite directions along the slide rail 11.

[0033] In one embodiment, if Figure 5As shown, the driving part 42 can be an adjusting hand wheel. The adjusting hand wheel is coaxially arranged with the screw rod 41. The rotation direction of the adjusting hand wheel is manually controlled. When the adjusting hand wheel rotates, the driving screw rod 41 is driven to rotate, thereby realizing the sliding of the slide 33. In another embodiment, the driving part 42 can be a driving motor. The driving motor is connected to the screw rod 41. In the case of setting two covering components 3, the adjusting hand wheel or the driving motor can rotate forward or reverse, thereby controlling the screw rod 41 to rotate clockwise or counterclockwise and driving the slide 33 to approach in the same direction or move away in the opposite direction.

[0034] In one embodiment, if Figure 5 As shown, the screw rod 41 may also be provided with a length meter 5. The length meter 5 can measure the moving distance of the slide 33, so that the operator or the control component can obtain the moving distance of the cover belt 31 on the adsorption platform 2, and can more accurately adjust the moving distance of the cover belt 31.

[0035] The specific working principle of the film-joining adsorption device of the coating machine is as follows: Taking the setting of two covering components 3 as an example, first, according to the width of the film material to be joined, the range of the masking belt 31 that needs to cover the adsorption platform 2 is calculated, and then the driving part 42 drives the screw 41 to rotate. While the screw 41 rotates, the two end slides 33 of the adsorption platform 2 approach in the same direction along the screw 41. During the sliding process of the slide 33, the masking belt 31 is pulled out from the storage base 32 and covers the part of the adsorption platform 2 that exceeds the width of the film material according to the calculated distance. When the film needs to be joined, the external vacuum device works, and the hollow cavity inside the adsorption platform 2 generates negative pressure, and the film material is completely covered on the adsorption platform 2 through the adsorption holes 21. Since the redundant adsorption holes 21 on both sides of the film material are covered by the masking belt 31, the film material can be stably fixed on the adsorption platform, thereby ensuring a good film joining effect. After the film joining is completed, the external vacuum device stops working, the negative pressure of the hollow cavity inside the adsorption platform 2 disappears, and the film material is detached from the adsorption platform 2.

[0036] In summary, in the coating machine film adsorption device of the present invention, the covering control component 4 controls the movement of the covering belt 31 to cover at least part of the adsorption holes 21 on the adsorption platform 2 to maintain the suction of the adsorption platform 2, thereby preventing the film material from falling off or shifting from the adsorption platform 2, thereby improving the adsorption capacity of the coating machine film adsorption device. The moving range of the covering belt 31 can be adjusted to adapt to film materials of different widths. A clockwork device is provided on the rotating shaft 321 to realize the automatic retraction of the covering belt 31. The setting of the length meter 5 can realize the accurate measurement and control of the moving distance of the covering belt 31.

[0037] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0038] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A coating machine film adsorption device, characterized in that: include: Base; An adsorption platform is fixedly arranged on the base and extends along the length direction of the base, the interior of the adsorption platform has a hollow cavity, the hollow cavity is connected to an external vacuum device, a plurality of adsorption holes are opened on the top of the adsorption platform, and the plurality of adsorption holes are connected to the hollow cavity; A covering assembly is arranged at the end of the base, the covering assembly comprises a covering belt which can be retracted along the length direction of the adsorption platform, and the covering belt is used to cover at least part of the adsorption hole; as well as A covering control component is arranged on the base and is used for controlling the retraction and extension of the covering belt.

2. The film adsorption device for a coating machine according to claim 1, characterized in that: The covering assembly further comprises: a storage base, fixedly disposed at one end of the base, the storage base being provided with a rotating shaft, and the covering tape being capable of being rolled up on the rotating shaft; and A slide seat is slidably arranged on the base and connected to one end of the covering belt. The slide seat can reciprocate along the length direction of the adsorption platform and drive the covering belt to be retracted and released along the length direction of the adsorption platform.

3. The film adsorption device for a coating machine according to claim 2, characterized in that: The rotating shaft is provided with a clockwork device for driving the covering belt to be rolled up on the rotating shaft.

4. The film adsorption device for a coating machine according to claim 2, characterized in that: The base is provided with two slide rails in parallel along the length direction of the base, and the slide seat can move along the slide rails.

5. The film adsorption device for a coating machine according to claim 4, characterized in that: The two sides of the bottom of the slide seat are symmetrically provided with limiting parts, and each limiting part is clamped in one of the slide rails.

6. The film adsorption device for a coating machine according to claim 2, characterized in that: The covering control component comprises: A screw rod is rotatably disposed in the base along the length direction of the base; A nut, fixedly connected to the slide seat and sleeved on the screw to form a screw-nut pair; and The driving part is connected with the screw rod and is used for driving the screw rod to rotate.

7. The film adsorption device for a coating machine according to claim 6, characterized in that: The number of the covering components is two, and they are respectively arranged at two ends of the base along the length direction of the base.

8. The film adsorption device for a coating machine according to claim 7, characterized in that: The two ends of the screw rod are provided with threads with opposite spiral directions, and the driving part drives the screw rod to rotate and drives the slide seats arranged at the two ends of the base to approach or move away from the screw rod in the same direction.

9. The film adsorption device for a coating machine according to claim 6, characterized in that: The driving part is an adjusting hand wheel, which is coaxially arranged with the screw rod and is used to drive the screw rod to rotate; or The driving part is a driving motor, and the driving motor is connected to the screw rod and is used to drive the screw rod to rotate.

10. The film adsorption device for a coating machine according to claim 6, characterized in that: The screw rod is provided with a length meter for determining the moving distance of the covering belt.

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