Gas cap device for screen printing machine and screen printing machine

Abstract

The invention discloses a pneumatic jacking device for a screen printing machine and the screen printing machine. The pneumatic jacking device comprises a base and a mounting frame, and further comprises a positioning assembly and a clamping assembly which are arranged on the mounting frame; the positioning assembly comprises a suction cup, a positioning head, a communicating mechanism and an air bag sleeve, the positioning head is matched with the glass cup and installed on the installation frame, the suction cup is arranged at one end of the positioning head, and the positioning head is sleeved with the air bag sleeve; when the suction cup is extruded, air in the suction cup enters the air bag sleeve through the communicating mechanism, so that the air bag sleeve expands to extrude and position the inner wall of the glass cup. The inner wall of the glass cup is extruded and positioned through expansion of the inflated air bag sleeve, and the air bag sleeve can deform greatly, so that the device can adapt to glass cups with various diameters and is high in universality; moreover, the air bag sleeve is inflated through air exhausted when the suction cup and the glass cup are sucked, the air bag sleeve does not need to be in an expansion state all the time, the service life can be prolonged, and meanwhile the air bag sleeve does not need to be inflated through an external air source.

Description

Technical Field

[0001] The invention relates to the technical field of screen printing machines, and in particular to an air cap device for a screen printing machine and the screen printing machine. Background Art

[0002] The hot stamping process uses heat and pressure to transfer the metal layer on the hot stamping paper / silver hot stamping paper to the surface of the product. For hot stamping on glass cups, since there is currently no adhesive that can be directly coated on the surface of hot stamping paper and has a strong affinity with glass, a layer of ink coating must be printed on the surface of the glass by a silk screen printer before hot stamping the glass cup.

[0003] When printing on a glass cup body by a screen printer, the glass cup needs to be fixed. The fixing device of the existing screen printer controls the suction cup to generate a vacuum to suck the bottom of the glass cup through a suction device. However, since the actual production process may require positioning of glasses of different diameters, the existing screen printer can only fix glasses of one diameter, and has poor versatility. Summary of the invention

[0004] The problem to be solved by the present invention is: to provide an air cap device for a screen printing machine and a screen printing machine, wherein the inner wall of a glass cup is squeezed and positioned by expanding an inflated air bag cover, and the air bag cover can undergo a large deformation, so it can adapt to glass cups of various diameters and has high versatility; and, by inflating the air bag cover with air discharged when the suction cup and the glass cup are sucked together, the air bag cover does not need to be in an expanded state all the time, which can increase the service life, and at the same time, there is no need to inflate the air bag cover through an external air source.

[0005] The present invention provides a technical solution to solve the above problems: a gas cap device for a screen printing machine, comprising a base and a mounting frame, wherein the mounting frame is arranged on the upper end surface of the base; and further comprising a positioning assembly and a clamping assembly arranged on the mounting frame;

[0006] The positioning assembly includes a suction cup, a positioning head, a connecting mechanism and an airbag cover, the positioning head cooperates with the glass cup, the positioning head is installed on the mounting frame, the suction cup is arranged at one end of the positioning head, and the airbag cover is sleeved on the positioning head;

[0007] The clamping assembly is used to push the glass to squeeze the suction cup so that the suction cup and the glass are sucked together. When the suction cup is squeezed, the air in the suction cup enters the airbag sleeve through the connecting mechanism, causing the airbag sleeve to expand and squeeze the inner wall of the glass to position it.

[0008] Preferably, the clamping assembly comprises a cylinder and a clamping plate, the cylinder is arranged on a mounting frame, and the clamping plate is installed at an output end of the cylinder.

[0009] Preferably, the communication mechanism comprises a communication tube and a one-way valve, one end of the communication tube is communicated with the bottom of the suction cup, and the other end is communicated with the airbag sleeve.

[0010] Preferably, the one-way valve is installed on the connecting pipe to control the gas in the connecting pipe to flow in one direction from the suction cup to the airbag sleeve.

[0011] Preferably, a plurality of fixing ridges are arranged on the outer surface of the airbag cover.

[0012] Preferably, it also includes a driving assembly for driving the positioning assembly to rotate.

[0013] Preferably, the driving assembly includes a driving motor, a driving rod and a bearing, the driving motor is mounted on a mounting frame, the driving rod is arranged at the output end of the driving motor, the mounting frame is provided with a mounting hole for installing the bearing, the rotating head cooperates with the bearing, and the driving rod is connected to the positioning head.

[0014] Preferably, the invention further comprises a releasing assembly for canceling the positioning of the glass by the positioning assembly.

[0015] Preferably, the release assembly includes a vent pipe and a switch valve, one end of the vent pipe is connected to the bottom of the suction cup, and the other end is connected to the airbag sleeve, and the switch valve is installed on the vent pipe, and the switch valve is used to control the opening and closing of the vent pipe.

[0016] The present invention also discloses a screen printing machine, comprising a gas cap device for a screen printing machine as described in any one of the above items.

[0017] Compared with the prior art, the advantages of the present invention are as follows: the present invention squeezes and positions the inner wall of the glass cup by expanding the inflated airbag cover, and the airbag cover can undergo a large deformation, so it can adapt to glass cups of various diameters and has high versatility; and, by inflating the airbag cover using the air discharged when the suction cup and the glass cup are sucked together, the airbag cover does not need to be inflated all the time, which can increase its service life, and at the same time, there is no need to inflate the airbag cover through an external air source. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings described herein are used to provide further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 yes Figure 1 The enlarged schematic diagram of point A in the middle;

[0021] Figure 3It is a cross-sectional view of the positioning head of the present invention.

[0022] The attached drawings are marked with: 1. mounting frame, 2. driving motor, 3. clamping plate, 4. cylinder, 5. bearing, 6. driving rod, 7. suction cup, 8. positioning head, 9. air bag cover, 10. fixing ridge, 11. switch valve, 12. one-way valve, 13. connecting pipe, 14. ventilation pipe, 15. base. DETAILED DESCRIPTION

[0023] The following will describe the implementation methods of the present invention in detail with reference to the accompanying drawings and embodiments, so that the implementation process of how the present invention applies technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.

[0024] In the description of the present invention, it should be noted that directional words, such as the terms "center", "lateral", "longitudinal", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating directions and positional relationships are based on the directions or positional relationships shown in the accompanying drawings, which are only for the convenience of narrating the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and cannot be understood as limiting the specific scope of protection of the present invention.

[0025] In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features. Therefore, the definition of "first" and "second" features can explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "several" is two or more, unless otherwise clearly and specifically defined.

[0026] In the present invention, unless otherwise specified and limited, the terms "assemble", "connect", and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can also be a mechanical connection; it can be directly connected, or it can be connected through an intermediate medium, or the two elements can be internally connected. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] It should be understood that when used in this specification and the appended claims, the terms "include" and "comprises" indicate the presence of described features, integers, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or combinations thereof.

[0028] It should also be understood that the terms used in this description of the embodiments of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the embodiments of the present invention. As used in the description of the embodiments of the present invention and the appended claims, unless the context clearly indicates otherwise, the singular forms of "a", "an" and "the" are intended to include plural forms.

[0029] Example 1

[0030] A gas cap device for a screen printer, comprising a base 15 and a mounting frame 1, wherein the mounting frame 1 is arranged on the upper end surface of the base 15; and further comprising a positioning component and a clamping component arranged on the mounting frame 1;

[0031] The positioning assembly includes a suction cup 7, a positioning head 8, a connecting mechanism and an airbag cover 9. The positioning head 8 cooperates with the glass cup, the positioning head 8 is installed on the mounting frame 1, the suction cup 7 is arranged at one end of the positioning head 8, and the airbag cover 9 is sleeved on the positioning head 8;

[0032] The clamping assembly is used to push the glass to squeeze the suction cup 7 so that the suction cup 7 and the glass are sucked together. When the suction cup 7 is squeezed, the air in the suction cup 7 enters the airbag cover 9 through the connecting mechanism, causing the airbag cover 9 to expand and squeeze the inner wall of the glass to position it.

[0033] In the above scheme, the inner wall of the glass is squeezed and positioned by expanding the inflated airbag sleeve, and the airbag sleeve can undergo a large deformation, so it can adapt to glass cups of various diameters and has high versatility. In addition, the airbag sleeve is inflated by utilizing the air discharged when the suction cup and the glass cup are sucked together. Since the air outlet is at the bottom of the suction cup, the gas can only flow from the bottom of the suction cup into the connecting tube during the process of squeezing the suction cup by the bottom of the glass cup and will not flow out from the surrounding of the suction cup, so that the suction cup and the bottom of the glass cup are sucked more tightly, and the airbag sleeve does not need to be inflated all the time (if the airbag is inflated all the time, the internal air pressure is relatively large, and the large air pressure always acts on the airbag, which is easy to cause damage to the airbag), which can increase the service life, and at the same time, there is no need to inflate the airbag sleeve through an external air source.

[0034] In this embodiment, the clamping assembly includes a cylinder 4 and a clamping plate 3. The cylinder 4 is arranged on a mounting frame 1, and the clamping plate 3 is installed at the output end of the cylinder 4. Specifically, when the glass cup needs to be positioned, the cylinder is turned on to drive the clamping plate to move to the left. The clamping plate pushes the glass cup to move left to squeeze the suction cup and engage with the suction cup.

[0035] Specifically, the communication mechanism includes a communication tube 13 and a one-way valve 12. One end of the communication tube 13 is connected to the bottom of the suction cup 7, and the other end is connected to the airbag cover 9. Further, the one-way valve 12 is installed on the communication tube 13 to control the gas in the communication tube 13 to flow in one direction from the suction cup 7 to the airbag cover 9. Under normal conditions, the suction cup is filled with air. When the suction cup is squeezed, the edge of the suction cup fits the bottom of the glass, so that the air inside the suction cup enters the airbag cover through the communication tube. After the airbag cover is inflated, it expands and squeezes the inner wall of the glass to radially position the glass.

[0036] In order to enable the airbag cover to position a glass cup with a larger diameter when a certain amount of gas is filled, a plurality of fixed ridges 10 are provided on the outer surface of the airbag cover 9. It should be noted that the fixed ridges are hollow, and when the airbag cover is inflated, air will enter the fixed ridges and bulge them.

[0037] In this embodiment, the gas cap device also includes a driving assembly for driving the positioning assembly to rotate. Specifically, the driving assembly includes a driving motor 2, a driving rod 6 and a bearing 5, the driving motor 2 is installed on the mounting frame 1, the driving rod 6 is arranged at the output end of the driving motor 2, the mounting frame 1 is provided with a mounting hole for installing the bearing 5, the rotating head cooperates with the bearing 5, and the driving rod 6 is connected to the positioning head 8.

[0038] In this embodiment, further, the gas cap device also includes a releasing component for canceling the positioning of the glass by the positioning component.

[0039] Among them, the release component includes a vent pipe 14 and a switch valve 11. One end of the vent pipe 14 is connected to the bottom of the suction cup 7, and the other end is connected to the airbag cover 9. The switch valve 11 is installed on the vent pipe 14, and the switch valve 11 is used to control the opening and closing of the vent pipe 14.

[0040] Specifically, the switch valve is in a closed state when the glass is fixed. When the glass needs to be removed from the positioning assembly, the switch valve is opened, and the air in the ventilation pipe enters a circulation state, that is, the airbag cover is connected to the suction cup, and the air with a higher pressure in the airbag cover enters the suction cup, the airbag cover no longer expands, and the suction cup no longer sucks the bottom of the glass, and the glass can be removed from the positioning assembly.

[0041] In the above solution, the axial positioning and radial positioning of the glass by the positioning assembly can be released simultaneously by the release assembly.

[0042] Example 2

[0043] This embodiment discloses a screen printing machine, including a gas cap device for a screen printing machine as described in Embodiment 1.

[0044] It should be noted that, in this embodiment, other structural components of the screen printing machine belong to the prior art, and those skilled in the art can select and design them according to actual needs, which will not be described in detail here.

[0045] The above description is only for the best embodiment of the present invention, but it should not be understood as limiting the claims. The present invention is not limited to the above embodiments, and its specific structure is allowed to be changed. All changes made within the scope of protection of the independent claims of the present invention are within the scope of protection of the present invention.

Claims

1. A gas cap device for a screen printing machine, comprising a base (15) and a mounting frame (1), wherein the mounting frame (1) is arranged on the upper end surface of the base (15); characterized in that: It also includes a positioning assembly and a clamping assembly arranged on the mounting frame (1); The positioning assembly comprises a suction cup (7), a positioning head (8), a communication mechanism and an airbag cover (9); the positioning head (8) cooperates with the glass cup, the positioning head (8) is mounted on the mounting frame (1), the suction cup (7) is arranged at one end of the positioning head (8), and the airbag cover (9) is sleeved on the positioning head (8); The clamping assembly is used to push the glass to squeeze the suction cup (7) so that the suction cup (7) and the glass are sucked together. When the suction cup (7) is squeezed, air in the suction cup (7) enters the airbag sleeve (9) through the connecting mechanism, so that the airbag sleeve (9) expands and squeezes the inner wall of the glass to position it.

2. The gas cap device for a screen printing machine according to claim 1, characterized in that: The clamping assembly comprises a cylinder (4) and a clamping plate (3); the cylinder (4) is arranged on a mounting frame (1); and the clamping plate (3) is mounted on an output end of the cylinder (4).

3. The gas cap device for a screen printing machine according to claim 1, characterized in that: The communication mechanism comprises a communication pipe (13) and a one-way valve (12); one end of the communication pipe (13) is communicated with the bottom of the suction cup (7), and the other end is communicated with the airbag sleeve (9).

4. The gas cap device for a screen printing machine according to claim 3, characterized in that: The one-way valve (12) is installed on the connecting pipe (13) to control the gas in the connecting pipe (13) to flow in one direction from the suction cup (7) to the airbag sleeve (9).

5. The gas cap device for a screen printing machine according to claim 1, characterized in that: A plurality of fixing ridges (10) are arranged on the outer surface of the airbag cover (9).

6. The gas cap device for a screen printing machine according to claim 1, characterized in that: It also includes a driving assembly for driving the positioning assembly to rotate.

7. The gas cap device for a screen printing machine according to claim 6, characterized in that: The driving assembly comprises a driving motor (2), a driving rod (6) and a bearing (5); the driving motor (2) is mounted on a mounting frame (1); the driving rod (6) is arranged at the output end of the driving motor (2); a mounting hole for mounting the bearing (5) is arranged on the mounting frame (1); the rotating head cooperates with the bearing (5); and the driving rod (6) is connected to a positioning head (8).

8. The gas cap device for a screen printing machine according to claim 1, characterized in that: Also included is a release assembly for canceling the positioning of the glass by the positioning assembly.

9. The gas cap device for a screen printing machine according to claim 8, characterized in that: The release assembly comprises a vent pipe (14) and a switch valve (11); one end of the vent pipe (14) is connected to the bottom of the suction cup (7), and the other end is connected to the airbag sleeve (9); the switch valve (11) is installed on the vent pipe (14), and the switch valve (11) is used to control the opening and closing of the vent pipe (14).

10. A screen printing machine, characterized in that: It comprises a gas cap device for a screen printing machine as described in any one of claims 1 to 9.

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