CN216885844U

CN216885844U - UV printer

Info

Publication number: CN216885844U
Application number: CN202220117589.3U
Authority: CN
Inventors: 吴江渝
Original assignee: Shenzhen Xinyu Automation Technology Co ltd
Current assignee: Shenzhen Xinyu Automation Technology Co ltd
Priority date: 2022-01-17
Filing date: 2022-01-17
Publication date: 2022-07-05
Anticipated expiration: 2032-01-17

Abstract

The utility model discloses a UV printer, comprising: a printing part having a printing platform on which a substrate to be printed can be held, the substrate being continuously fed out from the rear of the printing platform across the printing platform toward the front of the printing platform; a first holding section provided in front of the printing platform and having a first support shaft rotatably supporting the film stored in a roll shape; and a carrying part which is arranged in front of the printing platform and is provided with a first clamping roller and a second clamping roller which are opposite to each other, wherein at least one of the first clamping roller and the second clamping roller is driven by a driving device to rotate, and the first clamping roller and the second clamping roller clamp the film and the substrate so that the film and the substrate are continuously sent out towards the front and simultaneously the film is attached to the printed surface of the substrate. The UV printer can not only print on the base material, but also complete the film covering of the base material.

Description

UV printer

Technical Field

The utility model relates to the technical field of printers, in particular to a UV printer.

Background

A UV Printer (Ultraviolet LED Inkjet Printer) is a plate-free full-color digital Printer. The UV printer can print color photo grade on the surface of a substrate such as T-shirt, glass, sheet, film, etc., without material limitations. For example, a UV printer may make a UV transfer sticker (e.g., a crystal logo), and specifically, the UV printer prints desired graphics on a substrate of release material to form the crystal logo.

After printing on the substrate is completed, it is sometimes necessary to coat the printed surface of the substrate to protect the printed pattern of the substrate or to transfer the pattern (e.g., crystal mark). Taking a crystal label as an example, the existing UV printer is only a printing process for completing the manufacturing process of the crystal label. After the crystal logo is printed by the UV printer, the substrate with the crystal logo attached thereon is usually manually removed from the UV printer, and then transferred to a film coating device for film coating (transfer film) to form a complete crystal logo product. When the crystal label needs to be used, the film is peeled off and the crystal label is taken up by the film, so that the crystal label is pasted on the surface of a needed product.

Therefore, when a crystal mark is produced by using a conventional UV printer, a film coating device must be provided. Moreover, the operator is required to transfer the substrate back and forth and operate different devices, which is very inconvenient.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve at least one technical problem existing in the prior art to a certain extent, and therefore the utility model provides a UV printer which not only can print on a base material, but also can finish film coating on the base material.

A UV printer according to an aspect of the present invention includes: a printing section having a printing table on which a substrate to be printed can be held, the substrate being continuously fed out from a rear side of the printing table across the printing table toward a front side of the printing table; a first holding section provided in front of the printing platform and having a first support shaft rotatably supporting a film stored in a roll shape; and a conveying unit which is provided in front of the printing platform and has a first clamping roller and a second clamping roller which are opposite to each other, wherein at least one of the first clamping roller and the second clamping roller is driven by a driving device to rotate, and the first clamping roller and the second clamping roller clamp the film and the substrate which are sent out from the first holding unit, so that the film and the substrate are continuously sent out towards the front and simultaneously the film is attached to the printed surface of the substrate.

The UV printer according to one aspect of the present invention has the following advantageous effects: since the UV printer is provided with the first holding portion for holding the thin film and the conveying portion for sandwiching and conveying the thin film and the base material, not only printing on the base material but also coating of the base material can be completed.

In some embodiments, the first holding portion further includes a first bracket, and the first support shaft is detachably supported at the first bracket.

In some embodiments, the first holding section is provided in front of the conveying section, and between the first holding section and the conveying section, there are provided guide rollers for guiding the film to the nip positions of the first and second nip rollers.

In some embodiments, further comprising a second holder disposed behind the printing platform, the second holder having a second support shaft; the base material is stored in a roll shape and is rotatably supported on the second support shaft.

In some embodiments, the clamping device further comprises a main switching part, wherein the main switching part is connected with the second clamping roller and enables the second clamping roller to be close to or far away from the first clamping roller.

In some embodiments, the master switch comprises: one end of the first lever member is connected with one axial end of the second clamping roller; and the handle is arranged to abut against the other end of the first lever piece in a swinging mode.

In some embodiments, further comprising an auxiliary switch, the auxiliary switch comprising: one end of the second lever member is connected with the other axial end of the second clamping roller; and a cam member disposed to swingably abut the other end of the second lever member.

In some embodiments, an axially extending accommodating hole is arranged in the second clamping roller, and a heating element is arranged in the accommodating hole; the UV printer further comprises a temperature sensor for detecting the peripheral temperature of the second clamping roller.

In some embodiments, the temperature sensor includes at least two, one of which is disposed on one axial side of the second clamping roller and the other of which is disposed on the other axial side of the second clamping roller.

In some embodiments, an axially extending accommodating hole is arranged in the second clamping roller, and a heating element is arranged in the accommodating hole; the UV printer further comprises a temperature sensor for detecting the peripheral temperature of the second clamping roller, and the temperature sensor is connected with the main switching part.

Drawings

Fig. 1 is a perspective view of a front view of the UV printer of the present invention.

Fig. 2 is a sectional view at a-a in fig. 1.

Fig. 3 is a partially enlarged view of fig. 2 at B.

Fig. 4 is a schematic diagram of a right-view direction of essential parts of the internal structure of the UV printer of fig. 1.

Fig. 5 is a schematic view of a main part of the internal structure of the UV printer of fig. 1 in a left-hand direction.

Detailed Description

The concept and the resulting technical effects of the present embodiment will be clearly and completely described below with reference to the following examples to fully understand the objects, features and effects of the present embodiment. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and based on the embodiments of the present invention, other embodiments obtained by those skilled in the art without creative efforts belong to the protection scope of the present invention.

In the description of the embodiments, if an orientation description is referred to, for example, the orientations or positional relationships indicated by "upper", "lower", "front", "rear", "left", "right", and the like are based on the orientations or positional relationships shown in the drawings, only for convenience of description of the embodiments and simplification of description, but not for indicating or implying that the referred device or element must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the embodiments.

In the description of the embodiments, if a feature is referred to as being "disposed", "fixed", "connected", or "mounted" to another feature, it may be directly disposed, fixed, or connected to the other feature or may be indirectly disposed, fixed, connected, or mounted to the other feature. In the description of the embodiments, if "a number" is referred to, it means one or more, if "a plurality" is referred to, it means two or more, if "more than", "less than", or "more than", it is understood that the number is not included, and if "more than", "less than", or "within", it is understood that the number is included. If reference is made to "first" or "second", this should be understood to distinguish between features and not to indicate or imply relative importance or to implicitly indicate the number of indicated features or to implicitly indicate the precedence of the indicated features.

Fig. 1 is a perspective view of a front view of the UV printer. Fig. 2 is a sectional view at a-a in fig. 1. Fig. 3 is a partially enlarged view of fig. 2 at B. Fig. 4 and 5 are schematic diagrams in which a part of a sheet metal part of the base 109 of the UV printer is removed. In fig. 2 and 3, hatching is added to only a part of the components for the sake of convenience of illustration.

Referring to fig. 1 to 5 and mainly to fig. 1 to 3, the UV printer of the present embodiment can be used to print various desired patterns or characters such as a crystal logo on a substrate 201. For convenience of explanation, the following description will be given mainly with reference to crystal marks as an example. This UV printer includes: a printing unit 101, a first holding unit 102, and a conveying unit 103. The printing unit 101 includes a printing platform 104, and the printing platform 104 can hold a substrate 201 to be printed. The substrate 201 is continuously fed from the rear of the printing platform 104, across the printing platform 104 and towards the front of the printing platform 104. The first holding portion 102 is disposed in front of the printing platform 104. The first holding portion 102 has a first support shaft 105, and the first support shaft 105 rotatably supports the film 202 stored in a roll shape. The conveyance unit 103 is disposed in front of the printing deck 104. The conveying unit 103 includes a first clamp roller 106 and a second clamp roller 107 which are opposed to each other, and at least one of the first clamp roller 106 and the second clamp roller 107 is driven to rotate by a driving device 108. The film 202 and the base 201 fed from the first holding section 102 are held between the first and

second nip rollers

106 and 107 so that the film 202 and the base 201 are continuously fed forward and the film 202 is stuck to the surface of the base 201 to be printed (i.e., the surface on which the crystal mark is held, the upper surface in the drawing).

According to the UV printer of the present embodiment, since the first holding unit 102 for holding the film 202 and the conveying unit 103 for sandwiching and conveying the film 202 and the base material 201 are provided, not only printing of, for example, a crystal mark on the base material 201 but also covering of the base material 201 with a transfer film can be completed. Similarly, when it is necessary to print another pattern that needs to be protected by a coating film on the base material 201, the coating film can be applied immediately after the printing is completed.

Taking a crystal marker as an example, specifically, since the conveying section 103 has the first and

second nip rollers

106 and 107 opposed to each other, and at least one of the first and

second nip rollers

106 and 107 is driven to rotate by the drive device 108, and further, since the film 202 and the substrate 201 are nipped by the first and

second nip rollers

106 and 107, the first and

second nip rollers

106 and 107 can continuously convey and feed the completed crystal marker product while adhering the film 202 to the surface of the substrate 201 on which the crystal marker is held.

The UV printer of the present embodiment may include, for example, a base 109, and the base 109 may be formed by processing, for example, a sheet metal member into, for example, a box shape. A print area 110 is provided in the middle of the base 109 in the left-right direction, and the print table 104 of the print section 101 is provided in the print area 110. The printing area 110 is opened in the front-rear direction, thereby facilitating feeding of the base material 201 and the like. The printer 101 further includes a robot 111 driven in the left-right direction, and a print head 112 for printing a crystal mark (or other pattern) on the substrate 201 is mounted on the robot 111. While the substrate 201 is continuously fed, the robot 111 can drive the print head 112 to move in the left-right direction, and print a desired crystal mark or the like on the substrate 201 placed on the print table 104.

With continued reference to fig. 1, 2, and 3, the first holding portion 102 is disposed in front of the printing deck 104 in the feeding direction of the base material 201. The film 202 may be a commercially available film 202 that is stored by winding on a hollow core. The film 202 may be, for example, a transfer film for transfer or a protective film for protection, which is well known to those skilled in the art. The film 202 is supported in front of the printing platform 104 by the first support shaft 105. To easily supplement the film 202, in some embodiments, the first holding portion 102 may further include a first bracket 113, and the first support shaft 105 may be detachably supported at the first bracket 113. For example, the first bracket 113 may include two brackets, one of which is installed at the left side of the front of the printing area 110 of the base table 109 and the other of which is installed at the right side of the front of the printing area 110. Both ends of the first support shaft 105 in the axial direction are supported by two first brackets 113 on the left and right sides, respectively. When the film 202 needs to be replenished, the first support shaft 105 can be directly detached from the first support 113, the core of the film 202 can be extracted, and then a new core of the film 202 can be inserted into the first support shaft 105 to complete the replenishment of the film 202.

The conveyance unit 103 is provided, for example, directly in front of the print deck 104. The first nip roller 106 and the second nip roller 107 of the conveying unit 103 face each other in the vertical direction. The second clamping roller 107 is disposed above the first clamping roller 106. Both ends in the axial direction of the first clamping roller 106 are rotatably erected on the left and right sides of the printing area 110 of the base 109, respectively. The first clamping roller 106 is driven by a known drive device 108, such as a motor. The second clamping roller 107 is also rotatably mounted at both axial ends thereof on the left and right sides of the printing area 110 of the base 109. Further, both ends in the axial direction of the second nip roller 107 may be directly bridged on both the left and right sides of the printing area 110 of the base 109, or may be provided on both the left and right sides of the printing area 110 of the base 109 so as to be movable toward and away from the first nip roller 106 by a switching unit (a main switching unit 118 and an auxiliary switching unit 123 described later).

Further, the second clamping roller 107 may be connected to other known driving means such as a motor, if necessary. Thus, when the first and second nip

rollers

106 and 107 are operated while nipping the substrate 201, the substrate 201 such as a release material can be fed forward smoothly and continuously. In the nip state, the outer peripheral surface of the first nip roller 106 and the outer peripheral surface of the second nip roller 107 can abut against each other. Thereby, the first and second nip

rollers

106 and 107 can reliably nip the film 202 and the substrate 201. Further, the outer circumferential surface of the first holding roller 106 and the outer circumferential surface of the second holding roller 107 may be respectively wrapped with elastic layers such as silicone or rubber, and in the held state, the elastic layers of the outer circumferential surface of the first holding roller 106 and the elastic layers of the outer circumferential surface of the second holding roller 107 are pressed against each other. Thereby, the first and second nip

rollers

106 and 107 can more reliably nip the film 202 and the substrate 201.

Further, in some embodiments, the first holding portion 102 is disposed in front of the conveying portion 103, and between the first holding portion 102 and the conveying portion 103, there are provided guide rollers 114 for guiding the film 202 to the opposing positions of the first and second nip

rollers

106 and 107. Specifically, the first holding section 102 is provided in front of the conveying section 103 and is located above the base 109 with respect to the conveying section 103, so that a sufficient space for storing the rolled film 202 can be reserved between the first holding section 102 and the conveying section 103. The guide rollers 114 are provided between the first holding portion 102 and the conveying portion 103 in the up-down direction and the front-rear direction. Both ends in the axial direction of the guide roller 114 may be erected on the left and right sides of the printing area 110 of the base 109 like the first clamping roller 106. This makes it possible to easily guide one end of the film 202 in a roll form to a position (nip position) where the first nip roller 106 and the second nip roller 107 face each other. The film 202 is folded back from above the first and second nip

rollers

106 and 107 in the front-back direction, passes over the first and second nip

rollers

106 and 107, and then passes between the first and second nip

rollers

106 and 107 in the front direction, and is nipped by the first and second nip

rollers

106 and 107 together with the substrate 201. Thus, when the first nip roller 106 is rotated by the driving device 108, the film 202 and the base material 201 are fed forward while being attached to each other.

With continued reference to fig. 2, in addition, in some embodiments, in order to easily replenish the base material 201, the UV printer of the present embodiment may further include a second holding portion 115, the second holding portion 115 being disposed behind the printing platform 104, the second holding portion 115 having a second support shaft 116, the base material 201 being stored in a roll shape and rotatably supported on the second support shaft 116. Similarly, the substrate 201 may be a commercially available release sheet that is stored by being wound around a hollow winding core. The substrate 201 may be a substrate that can be used as it is. The base material 201 may be another base material having a protective film when it is supplied, and in this case, the protective film may be peeled off before the base material 201 is sent to the print table 104. The method of peeling the protective film is not particularly limited, and for example, the peeled protective film may be collected by a collection roller, and the protective film may be collected by the collection roller while the base material 201 is fed forward.

The substrate 201 is held behind the print platform 104 by the second support shaft 116. The second holding portion 115 is substantially the same as the first holding portion 102, and may include, for example, two second brackets 117, one of which is attached to the left side of the rear of the printing region 110 of the base 109 and the other of which is attached to the right side of the rear of the printing region 110. Both ends of the second support shaft 116 in the axial direction are supported by two second brackets 117 on the left and right sides, respectively. When the base material 201 needs to be replenished, the second support shaft 116 may be directly detached from the second holder 117, the core of the base material 201 may be extracted, and a new core of the base material 201 may be inserted into the second support shaft 116 to complete replenishment of the base material 201.

Of course, although the example in which the second holding portion 115 is provided behind the UV printer has been described above, the present invention is not limited to this. When the substrate 201 is transported from another place, the second holding portion 115 may not be provided.

With continued reference to fig. 4, in some embodiments, to facilitate replenishment of the substrate 201 and/or the film 202, the UV printer of this embodiment may further include a main switch 118, the main switch 118 being connected to the second clamping roller 107 and allowing the second clamping roller 107 to be closer or farther from the first clamping roller 106. For example, when the main switching unit 118 switches the second grip roller 107 to be close to the first grip roller 106, the outer peripheral surfaces of the first grip roller 106 and the second grip roller 107 are brought into contact with each other, and the first grip roller 106 and the second grip roller 107 are in a gripped state. In the nip state, the substrate 201 and the film 202 are nipped by the first nip roller 106 and the second nip roller 107. When the main switching section 118 switches the second nip roller 107 so as to be away from the first nip roller 106, the first and second nip

rollers

106 and 107 are separated from each other, and thereby the substrate 201 and/or the film 202 can be easily passed through a position (opposed position) between the first and second nip

rollers

106 and 107 or can be easily pulled out from the opposed position.

In some embodiments, in order to easily switch the second clamping roller 107, the main switching part 118 may include: a first lever 119 and a handle 120, wherein one end of the first lever 119 is connected to one axial end of the second clamping roller 107, and the handle 120 is swingably disposed to abut against the other end of the first lever 119. Specifically, for example, a sheet metal member may be used as the first lever member 119, and the middle of the length of the first lever member 119 is swingably supported to the base 109 by, for example, a pin (no reference numeral). One axial end of the second clamping roller 107 is rotatably connected to one end of the first lever member 119. The handle 120 is also swingably supported on the base 109 by, for example, a pin (no reference numeral). One end of the handle 120 is provided with a cam portion 121, and the cam portion 121 of the handle 120 abuts the other end of the first lever member 119. In addition, the handle 122 is disposed at the other end of the handle 120, and the handle 122 is exposed outside the base 109. Thus, when the operator holds the handle 122 and swings counterclockwise, for example, the cam portion 121 of the handle 120 pushes the first lever member 119 to swing counterclockwise, so that the second grip roller 107 supported at one end (rear end in the drawing) of the first lever member 119 is lifted, and the second grip roller 107 is separated from the first grip roller 106. When the operator holds the handle 122 and swings clockwise, for example, the cam portion 121 of the handle 120 is lifted relative to the other end (front end in the drawing) of the first lever member 119, so that the first lever member 119 swings clockwise, and the second grip roller 107 supported at the rear end of the first lever member 119 falls and abuts against the first grip roller 106, thereby switching to the grip state.

With continued reference to fig. 5, in some embodiments, in order to enable the second clamping roller 107 to switch positions more evenly, the UV printer of the present embodiment may further include an auxiliary switching portion 123, the auxiliary switching portion 123 including: a second lever member 124 and a cam member 125. One end of the second lever member 124 is connected to the other axial end of the second clamping roller cylinder 107. The cam member 125 is disposed swingably abutting the other end of the second lever member 124. Specifically, for example, the main switching unit 118 is disposed on the right side of the printing area 110 of the base 109, and the auxiliary switching unit 123 is disposed on the left side of the printing area 110 of the base 109. The handle 120 of the main switching portion 118 and the cam member 125 of the auxiliary switching portion 123 may be connected by, for example, a linkage shaft 126. The structure of the second lever member 124 is set with reference to the first lever member 119, and the structure of the cam member 125 is set with reference to the cam portion 121 of the handle 120. Thus, when the operator operates the knob 120 of the main switching portion 118, the cam member 125 of the auxiliary switching portion 123 and the cam portion 121 of the main switching portion 118 swing in the same trajectory, and thereby the second lever member 124 is driven to swing. Thus, by providing the auxiliary switching section 123, both ends in the axial direction of the second grip roller 107 can be simultaneously lifted or simultaneously dropped, and therefore, switching of the second grip roller 107 can be made smoother.

With continued reference to fig. 3 and with additional reference to fig. 2, in some embodiments, an axially extending receiving hole 127 may be provided in the second clamping roller 107, with a heating element 128 being received within the receiving hole 127. The receiving hole 127 may penetrate in the axial direction of the second clamping roller 107, for example. The heating member 128 may be selected from, for example, a known heating rod, a thermocouple, and the like. By providing the heating member 128 in the second nip roller 107, the temperature of the outer periphery of the second nip roller 107 can be raised. This heats the film 202 pressed by the second nip roller 107, thereby causing the film 202 to adhere more closely to the substrate 201, and further causing the crystal logo or the like held on the substrate 201 to be firmly adhered to the film 202. This makes it possible to more easily peel off the crystal target from the base 201 and to more reliably adhere the crystal target to the film 202.

In addition, in order to be able to accurately control the temperature of the outer circumference of the second nip roller 107, the UV printer of the present embodiment may further include a temperature sensor 129 for detecting the temperature of the outer circumference of the second nip roller 107. The temperature sensor 129 may be a known non-contact temperature sensor such as an infrared ray sensor. In order to be able to more accurately detect the temperature of the outer periphery of the second clamping roller 107, the temperature sensor 129 includes, for example, at least two, one of which is disposed on one side of the second clamping roller 107 in the axial direction and the other of which is disposed on the other side of the second clamping roller 107 in the axial direction.

Further, in the case where the main switching unit 118 and the auxiliary switching unit 123 are provided, the temperature sensor 129 may be connected to the main switching unit 118. Specifically, for example, a mounting bracket 130 may be provided in front of the second clamping roller 107, and both ends of the mounting bracket 130 in the longitudinal direction may be respectively mounted on the first lever member 119 of the main switching unit 118 and the second lever member 124 of the auxiliary switching unit 123. The temperature sensor 129 is installed on the mounting frame 130 and is opposite to the second clamping roller 107. This allows the temperature sensor 129 to be constantly held at a position where the temperature of the outer periphery of the second nip roller 107 can be detected.

The various specific features described in the above embodiments may be combined in any way without contradiction, and in the present embodiment, various combinations that are possible are not separately described for unnecessary repetition.

The above examples are merely illustrative of the technical solutions of the present embodiments and are not intended to be limiting, and any modifications or equivalent substitutions that do not depart from the scope of the present embodiments should be included in the technical solutions of the present embodiments.

Claims

1. A UV printer, comprising:

a printing section having a printing table on which a substrate to be printed can be held, the substrate being continuously fed out from a rear side of the printing table across the printing table toward a front side of the printing table;

a first holding section provided in front of the printing platform and having a first support shaft rotatably supporting a film stored in a roll shape;

and a conveying unit which is provided in front of the printing platform and has a first clamping roller and a second clamping roller which are opposite to each other, wherein at least one of the first clamping roller and the second clamping roller is driven by a driving device to rotate, and the first clamping roller and the second clamping roller clamp the film and the substrate which are sent out from the first holding unit, so that the film and the substrate are continuously sent out towards the front and simultaneously the film is attached to the printed surface of the substrate.

2. The UV printer of claim 1, wherein the first holding portion further comprises a first bracket, the first support shaft being detachably supported at the first bracket.

3. The UV printer according to claim 1 or 2, wherein the first holding section is provided in front of the conveying section, and between the first holding section and the conveying section, there are provided guide rollers for guiding the film to the nip positions of the first nip roller and the second nip roller.

4. The UV printer according to claim 1 or 2, further comprising a second holding portion provided at the rear of the printing platform, the second holding portion having a second support shaft;

the base material is stored in a roll shape and is rotatably supported on the second support shaft.

5. The UV printer of claim 1, further comprising a main switching part connected to the second clamping roller and allowing the second clamping roller to be close to or remote from the first clamping roller.

6. The UV printer of claim 5, wherein the main switching portion comprises:

one end of the first lever member is connected with one axial end of the second clamping roller;

and the handle is arranged to abut against the other end of the first lever piece in a swinging mode.

7. The UV printer of claim 6, further comprising an auxiliary switching section, the auxiliary switching section comprising:

one end of the second lever member is connected with the other axial end of the second clamping roller;

and a cam member disposed to swingably abut the other end of the second lever member.

8. The UV printer of claim 1, wherein an axially extending receiving hole is provided in the second clamping roller, the receiving hole having a heating element disposed therein;

the UV printer further comprises a temperature sensor for detecting the peripheral temperature of the second clamping roller.

9. The UV printer of claim 8, wherein the temperature sensor includes at least two, one of which is disposed on one side in the axial direction of the second clamping roller and the other of which is disposed on the other side in the axial direction of the second clamping roller.

10. The UV printer of claim 6 or 7, wherein an axially extending receiving hole is provided in the second clamping roller, and a heating element is disposed in the receiving hole;

the UV printer further comprises a temperature sensor for detecting the peripheral temperature of the second clamping roller, and the temperature sensor is connected with the main switching part.