Rubber head mounting structure of pad printing equipment

Abstract

The utility model provides a rubber head mounting structure of pad printing equipment, which comprises a base plate, the left side and the right side of the bottom surface of the base plate are provided with inserting strips which are oppositely arranged and have L-shaped sections, so that an inserting groove is formed between the two inserting strips; the left side edge and the right side edge of the mounting plate frame protrude outwards to form inserting edges so that the mounting plate frame can be inserted into the inserting grooves in a matched mode through the inserting edges, and the mounting plate frame is provided with a mounting through hole and a sinking table arranged in the circumferential direction of the mounting through hole. The top end face of the rubber head abuts against the bottom face of the base plate and makes contact with the bottom face of the base plate, the rubber head downwards penetrates through the installation through hole in a matched mode, and the top end face of the rubber head extends outwards in the circumferential direction to form an installation edge in lap joint with the sinking table in a matched mode. The installation can be completed only by penetrating the rubber head through the installation through hole of the installation plate frame and then inserting the rubber head into the insertion groove of the substrate, so that the installation and replacement efficiency is greatly improved; the rubber head is convenient to recycle, and the production cost is reduced; and the rubber head cannot be deformed due to unbalanced extrusion force, so that the printing quality is stable.

Description

Technical Field

[0001] The utility model relates to the technical field of pad printing equipment, in particular to a rubber head installation structure of pad printing equipment. Background Art

[0002] With the rapid development of electronic devices such as mobile phones and tablets, the supporting production equipment also needs to be updated and iterated. Among them, the pad printing equipment for printing frame ink on glass panels is one of them. The basic principle of this type of pad printing equipment is: ink is applied to the printing plate engraved with patterns, and then the soft rubber head is driven by the motion device to first stick the ink pattern on the printing plate to the bottom of the rubber head, and then the ink pattern on the bottom of the rubber head is transferred to the surface of the glass panel. Among them, the material of the rubber head will directly affect the quality of pad printing. The existing rubber heads used for pad printing of such products are relatively expensive and are consumable parts. The pad printing factory needs to replace a large number of rubber heads every day, which is very costly. However, in the existing pad printing equipment of this type, the rubber head is fixed on a flat plate by gluing the top surface, and then the flat plate is locked on the equipment, or the rubber head is locked on the equipment by flanges on both sides; both methods have defects. When fixed by gluing, the worn rubber head is difficult to remove from the flat plate, which greatly affects the recycling value of the rubber head and increases the cost; and the flange locking method not only requires adjusting the locking force during installation and replacement to prevent the rubber head from deforming and affecting the printing quality, so the installation and replacement of the rubber head will obviously affect the production efficiency, and the flange locking method is difficult to ensure the consistency of the extrusion deformation of the rubber head, which will further affect the stability of the printing quality. Utility Model Content

[0003] The utility model aims to provide a pad printing equipment rubber head installation structure which has high installation and replacement efficiency, stable printing quality and does not affect recycling.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0005] A rubber head mounting structure for a pad printing device comprises a substrate, wherein the left and right sides of the bottom surface of the substrate have plug-in strips which are arranged opposite to each other and have an L-shaped cross-section, so that a plug-in groove is formed between the two plug-in strips; a mounting plate frame, wherein the left and right side edges of the mounting plate frame have plug-in edges protruding outwardly, so that the mounting plate frame can be adaptably plugged into the plug-in groove through the plug-in edges, and the mounting plate frame has a mounting through hole and a sinking platform circumferentially arranged around the mounting through hole; a rubber head, wherein the top end surface of the rubber head contacts the bottom surface of the substrate and passes downwardly adaptably through the mounting through hole, and the top end surface of the rubber head extends circumferentially outward to form a mounting edge which adaptably overlaps with the sinking platform.

[0006] In a preferred solution, a baffle is provided on the rear side of the bottom surface of the substrate.

[0007] In a preferred embodiment, a plurality of positioning protrusions are protruded from the front side of the baffle, and a rear side of the mounting plate frame has positioning recesses adapted to the positioning protrusions.

[0008] A preferred solution also includes an adjustment device for installing and adjusting the position of the substrate, the adjustment device includes a first adjustment plate on the top, a slide rail arranged on the bottom surface of the first adjustment plate along the Y-axis, a second adjustment plate slidably assembled on the bottom surface of the first adjustment plate through the slide rail, a first adjustment component for adjusting and fixing the Y-axial position of the second adjustment plate, a centering disk that passes upward through the center of the substrate and hangs it on the center of the bottom surface of the second adjustment plate, and a second adjustment component for adjusting the rotation angle of the second adjustment plate around the centering disk.

[0009] In a preferred embodiment, the first adjustment component includes a compression spring whose first end is arranged along the Y-axis direction and abuts against the first adjustment plate and the second adjustment plate, and a fixing nut and a threaded fine-tuning screw whose second end is arranged along the Y-axis direction and abuts against the first adjustment plate and the second adjustment plate.

[0010] In a preferred embodiment, the second adjustment assembly includes at least two sets of mechanical micrometers fixedly installed on the outer side of the second adjustment plate at intervals around the circumference, and the ends of the measuring rods of the mechanical micrometers abut against the side of the base plate.

[0011] A preferred solution is that the outer circumference of the top surface of the centering disk has an outer step, and the center of the substrate has a centering through hole adapted to the centering disk, and the inner wall of the centering through hole has an inner step adapted to the outer step, and the bottom surface of the centering disk is flush with the bottom surface of the substrate.

[0012] The beneficial effects of the utility model are as follows: when installing and replacing the rubber head, it is only necessary to pass the rubber head through the installation through hole of the installation plate frame, and then insert the installation plate frame into the plug-in slot of the substrate, which greatly improves the installation and replacement efficiency; when disassembling, the rubber head can be directly taken out from the installation plate frame, which is very convenient for recycling the rubber head, thereby reducing production costs; the rubber head is clamped and fixed to the bottom surface of the substrate by the sinker of the installation plate frame through the installation edge around the top, and the gap space between the sinker and the bottom surface of the substrate is fixed, so the rubber head will not be deformed by the uneven extrusion force, and the printing quality is stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The utility model is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0014] Figure 1 This is a schematic diagram of the overall installation structure of the rubber head in the embodiment;

[0015] Figure 2 It is a schematic diagram of the exploded structure of the parts of the rubber head installation structure in the embodiment;

[0016] Figure 3 is a schematic structural diagram of a substrate in an embodiment;

[0017] Figure 4 This is a schematic diagram of the structure of the mounting plate frame in the embodiment;

[0018] Figure 5 Schematic diagram of the exploded structure of the parts of the adjusting device in the embodiment. DETAILED DESCRIPTION

[0019] The utility model is further described below in conjunction with the accompanying drawings:

[0020] It should be noted that the words indicating directions in the present application document, such as above, below, top surface, vertical, etc., are only for the convenience of a more intuitive description of the structure in combination with the drawings, and are not intended to limit the product structure.

[0021] refer to Figures 1 to 5 , a rubber head mounting structure of a pad printing device of the present embodiment is mounted on the active end of an electric screw drive system, and includes a base plate 2, wherein the left and right sides of the bottom surface of the base plate 2 have plug-in strips 21 that are arranged opposite to each other and have an L-shaped cross-section, so that a plug-in groove is formed between the two plug-in strips 21; a mounting plate frame 3, wherein the left and right side edges of the mounting plate frame 3 protrude outwardly with plug-in edges 31, so that the mounting plate frame 3 can be adaptively plugged into the plug-in groove through the plug-in edges 31, and the mounting plate frame 3 has a mounting through hole 32 and a sink 33 circumferentially arranged around the mounting through hole 32; a rubber head 4, wherein the top end surface of the rubber head 4 contacts the top of the bottom surface of the base plate 2, and passes downwardly adaptively through the mounting through hole 32, and the top end surface of the rubber head 4 extends circumferentially outwardly to form a mounting edge 41 that is adaptively overlapped with the sink 33.

[0022] When installing and replacing the rubber head 4, it is only necessary to pass the rubber head 4 through the installation through hole 32 of the installation plate frame 3, and then insert the installation plate frame 3 into the plug-in slot of the substrate 2, which greatly improves the installation and replacement efficiency; when disassembling, the rubber head 4 can be directly taken out from the installation plate frame 3, which is very convenient for recycling the rubber head 4, thereby reducing the production cost; the rubber head 4 is clamped and fixed to the bottom surface of the substrate 2 by the sinking platform 33 of the installation plate frame 3 through the installation edge 41 around the top, and the gap space between the sinking platform 33 and the bottom surface of the substrate 2 is fixed, so the rubber head 4 will not be deformed by the uneven extrusion force, and the printing quality is stable.

[0023] In a preferred embodiment, the rear side of the bottom surface of the base plate 2 of this embodiment has a baffle 22. The baffle 22 can limit the position of the mounting plate frame 3 moving backward, and the mounting plate frame 3 can be pushed into the set position conveniently and quickly during installation.

[0024] A preferred solution is that the front side of the baffle 22 of this embodiment has a plurality of positioning protrusions 23, and the rear side of the mounting plate frame 3 has a positioning recess 34 adapted to the positioning protrusions 23. The positioning protrusions 23 cooperate with the positioning recess 34 of the mounting plate frame 3 to further limit the front-back and left-right movement of the mounting plate frame 3 relative to the substrate 2, thereby improving the stability of the installation of the rubber head 4.

[0025] A preferred solution, the mounting structure of this embodiment also includes an adjusting device for installing and adjusting the position of the substrate 2, the adjusting device includes a first adjusting plate 5 at the top, a slide rail 51 provided on the bottom surface of the first adjusting plate 5 along the Y-axis direction, a second adjusting plate 6 slidably assembled on the bottom surface of the first adjusting plate 5 through the slide rail 51, a first adjusting component for adjusting and fixing the position of the second adjusting plate 6 along the Y-axis direction, a centering disk 7 passing upward through the center of the substrate 2 and hanging and mounting it on the center of the bottom surface of the second adjusting plate 6, and a second adjusting component for adjusting the rotation angle of the second adjusting plate 6 around the centering disk 7. By adjusting the Y-axis position of the second adjusting plate 6 and adjusting the rotation angle of the substrate 2, the center position and angle of the rubber head 4 can be adjusted, thereby ensuring strict correspondence with the workpiece, and being suitable for printing workpieces of different specifications and sizes.

[0026] A preferred solution, the first adjustment component of this embodiment includes a compression spring 521 arranged at the first end along the Y-axis direction and abutting between the first adjustment plate 5 and the second adjustment plate 6, and a fixing nut and a threaded fine-tuning screw 522 arranged at the second end along the Y-axis direction and abutting between the first adjustment plate 5 and the second adjustment plate 6. During adjustment, the fine-tuning screw 522 is rotated to move relative to the fixing nut along the Y-axis direction, thereby pushing the second adjustment plate 6 to move along the Y-axis direction, and can move forward when rotating in the positive direction, and can move backward under the thrust of the compression spring 521 when rotating in the reverse direction. In other embodiments, the first adjustment component can also be a plurality of top screws threadedly installed on the second adjustment plate 6 and abutting against the bottom surface of the first adjustment plate 5; or two groups of blocks locked on the bottom surface of the first adjustment plate 5 to limit the two ends of the second adjustment plate 6 along the Y-axis direction, wherein the block is provided with an elongated hole in the Y-axis direction and is locked on the first adjustment plate 5 by a screw, and the fixed position of the block on the first adjustment plate 5 can be adjusted through the elongated hole, thereby adjusting the position of the second adjustment plate 6 in the Y-axis direction.

[0027] A preferred solution is that the second adjustment component of this embodiment includes at least two groups of mechanical micrometers 61 fixedly installed on the outer side of the second adjustment plate 6 at intervals around the circumference, and the end of the measuring rod of the mechanical micrometer 61 abuts against the side of the substrate 2. When adjusting the rotation angle of the substrate 2, one group of mechanical micrometers 61 moves forward, and the other group of mechanical micrometers 61 moves back the same distance, so as to ensure the accuracy of the rotation angle of the substrate 2. In other embodiments, the second adjustment component may also include a screw and a threaded seat with thread matching, the threaded seat is fixed on the substrate 2, and one end of the screw abuts against the side of the second adjustment plate 6; or two groups of blocks locked on the bottom surface of the second adjustment plate 6 to limit the rotation of the substrate 2, wherein the block is provided with an elongated hole and is locked on the second adjustment plate 6 by a screw, and the fixed position of the block can be adjusted through the elongated hole, thereby adjusting the limiting position of the substrate 2.

[0028] A preferred solution is that the outer circumference of the top surface of the centering disk 7 of this embodiment has an outer step 71, and the center of the substrate 2 has a centering through hole 24 adapted to the centering disk 7, and the inner wall of the centering through hole 24 has an inner step 241 adapted to the outer step 71, and the bottom surface of the centering disk 7 is flush with the bottom surface of the substrate 2. The outer step 71 of the shaping disk is adapted to the inner step 241 of the centering through hole 24, so that the substrate 2 can be attached to and suspended on the bottom surface of the second adjustment plate 6 without horizontal movement, and the bottom surface of the centering disk 7 is flush with the bottom surface of the substrate 2, which can ensure that the top surface of the rubber head 4 is attached to the bottom surface of the substrate 2 for installation, thereby ensuring the stability of the installation of the rubber head 4.

[0029] The above description does not limit the technical scope of the present invention. Any modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A pad installation structure for a pad printing device, characterized in that: It includes a base plate, and the left and right sides of the bottom surface of the base plate have plug-in strips that are arranged opposite to each other and have an L-shaped cross-section, so that a plug-in groove is formed between the two plug-in strips; an installation plate frame, and the left and right side edges of the installation plate frame have plug-in edges protruding outward, so that the installation plate frame can be adaptably plugged into the plug-in groove through the plug-in edges, and the installation plate frame has a mounting through hole and a sinker arranged circumferentially around the mounting through hole; a rubber head, the top end surface of which is in contact with the bottom surface of the base plate and fits downward through the mounting through hole, and the top end surface of the rubber head extends circumferentially outward to form a mounting edge that fits and overlaps with the sinker.

2. The pad installation structure of a pad printing device according to claim 1, characterized in that: A baffle is provided on the rear side of the bottom surface of the substrate.

3. The pad installation structure of a pad printing device according to claim 2, characterized in that: The front side surface of the baffle is protruded with a plurality of positioning protrusions, and the rear side surface of the mounting plate frame is provided with positioning recesses matched with the positioning protrusions.

4. The pad installation structure of a pad printing device according to claim 1, characterized in that: It also includes an adjusting device for installing and adjusting the position of the substrate, the adjusting device includes a first adjusting plate on the top, a slide rail arranged on the bottom surface of the first adjusting plate along the Y-axis direction, a second adjusting plate slidably assembled on the bottom surface of the first adjusting plate through the slide rail, a first adjusting component for adjusting and fixing the Y-axial position of the second adjusting plate, a centering disk that passes upward through the center of the substrate and is suspended and installed at the center of the bottom surface of the second adjusting plate, and a second adjusting component for adjusting the rotation angle of the second adjusting plate around the centering disk.

5. The rubber head mounting structure of pad printing equipment according to claim 4, characterized in that: The first adjustment component includes a compression spring arranged at the first end along the Y-axis direction and abutting against the first adjustment plate and the second adjustment plate, and a fixing nut and a threaded fine-tuning screw arranged at the second end along the Y-axis direction and abutting against the first adjustment plate and the second adjustment plate.

6. The rubber head mounting structure of pad printing equipment according to claim 4, characterized in that: The second adjustment assembly includes at least two sets of mechanical micrometers fixedly installed on the outer side of the second adjustment plate at intervals around the circumference, and the ends of the measuring rods of the mechanical micrometers abut against the side of the base plate.

7. The pad installation structure of pad printing equipment according to claim 4, characterized in that: The top surface of the centering disk has an outer step on its outer periphery, and the center of the substrate has a centering through hole matched with the centering disk, and the inner wall of the centering through hole has an inner step matched with the outer step, and the bottom surface of the centering disk is flush with the bottom surface of the substrate.

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