Automatic double-sided pad printing machine

Abstract

The present invention discloses an automatic double-sided pad printing machine, comprising a frame, a turntable, a fixture, a pad printing mechanism, and a conversion mechanism. The turntable is arranged on the frame and performs a horizontal rotational motion relative to the frame. A plurality of fixtures are arranged on the turntable at intervals along the rotation direction of the turntable. The turntable drives the fixture to intermittently rotate to the pad printing station. The pad printing mechanism comprises a pad printing head and a lifting drive. The pad printing head is located on the pad printing station and is aligned with the fixture in the up-down direction. A hollow structure is provided in the middle of the turntable. The conversion mechanism is located in the hollow structure and is aligned with the fixture located at the pad printing station in the front-to-back direction. The fixture is provided with a through-piece provided in the front-to-back direction. The conversion mechanism is provided with a conversion head. The conversion head is selectively connected to the through-piece. After being connected to the through-piece, the conversion head performs a rotational motion to drive the through-piece to rotate, so that the product is rotated from the first side to the second side. Therefore, the automatic double-sided pad printing machine of the present invention has the advantages of being able to perform double-sided pad printing and improving work efficiency.

Description

Technical Field

[0001] The present invention relates to the field of pad printing equipment, in particular to an automatic double-sided pad printing machine. Background Art

[0002] With the development of science and technology and the progress of humanities, automated equipment has gradually replaced manual labor to complete simple repetitive actions to meet the needs of modern industrial production efficiency. Automated pad printing machines are automated equipment used to print patterns on products.

[0003] Traditional pad printers can only print on one side, requiring drying after printing before a second printing cycle. This is especially true for ISOFIX products, as the printer's fixture design is irrational, making double-sided printing impossible. Therefore, when printing on both sides of a product, two pad printers are required. Consequently, traditional pad printers suffer from low printing efficiency and are limited to single-sided printing.

[0004] Therefore, there is an urgent need for an automatic double-sided pad printing machine that can perform double-sided pad printing and improve work efficiency to overcome the above-mentioned defects. Summary of the Invention

[0005] The object of the present invention is to provide an automatic double-sided pad printing machine which can perform double-sided pad printing and improve work efficiency.

[0006] To achieve the above-mentioned purpose, the automatic double-sided pad printing machine of the present invention includes a frame, a turntable, a clamp, a pad printing mechanism and a conversion mechanism. The turntable is arranged on the frame and rotates horizontally relative to the frame. There are multiple clamps and are arranged on the turntable at intervals along the rotation direction of the turntable. The turntable drives the clamp to rotate intermittently to a pad printing station. The pad printing mechanism includes a pad printing head and a lifting drive that drives the pad printing head to move up and down. The pad printing head is located on the pad printing station and is aligned with the clamp in the up and down directions. A hollow structure is provided in the middle of the turntable. The conversion mechanism is located in the hollow structure and is aligned with the clamp located at the pad printing station in the front-to-back direction. The clamp is provided with a penetrating piece for penetrating the product. The penetrating piece is arranged in the front-to-back direction. The conversion mechanism is provided with a conversion head in the direction of the clamp. The conversion head is selectively connected to the penetrating piece. After being connected to the penetrating piece, the conversion head rotates to drive the penetrating piece to rotate, so that the product is rotated from the first side to the second side.

[0007] Preferably, the through-piece includes a rotating shaft fixedly placed on the product and a quilted sleeve connected to one end of the rotating shaft, the rotating shaft is placed horizontally on the fixture, and the quilted sleeve is passed through the fixture and faces the direction of the conversion mechanism; when the fixture is located at the pad printing station, the quilted sleeve is arranged opposite to the conversion head, and the conversion head is selectively connected to the quilted sleeve.

[0008] Preferably, the quilt is a gear, the conversion head is a gear sleeve, and a gear-shaped groove that matches the gear is provided in the gear sleeve.

[0009] Preferably, the fixture is a C-shaped frame with an opening facing upward, and the product is located in the opening.

[0010] Preferably, the conversion mechanism includes a moving unit that drives the conversion head to connect with the penetration piece and a rotating unit that drives the conversion head to rotate. The rotating unit is connected to the conversion head and is installed on the moving unit. The moving unit drives the rotating unit and the conversion head to move horizontally toward or away from the penetration piece.

[0011] Preferably, the moving unit includes a slide rail, a slider and a driving cylinder, the slide rail is arranged along the front-back direction, the slider is slidably arranged on the slide rail, the driving cylinder is installed on the slide rail, and the output end of the driving cylinder is connected to the slider.

[0012] Preferably, the slider includes a horizontal block and a vertical block, the horizontal block and the vertical block form an L-shaped block structure, the rotating unit is installed on the vertical block, and the conversion head is installed on the output end of the rotating unit.

[0013] Preferably, the rotating unit is a rotating motor.

[0014] Preferably, the conversion head rotates 90°, 180°, 270° or 360°, and the conversion head also performs a rotational motion for resetting.

[0015] Preferably, there are at least two pad printing mechanisms which are arranged spaced apart in the left-right direction, and the number of the conversion mechanisms is the same as the number of the pad printing mechanisms.

[0016] Compared with the prior art, the automatic double-sided pad printing machine of the present invention uses a turntable to drive the fixture to perform a rotational motion in the horizontal plane. When the fixture is rotated to the pad printing station, after the pad printing mechanism completes pad printing on the front side of the product, it is connected to the through-piece with the help of the conversion head of the conversion mechanism and drives the through-piece to perform a rotational motion, so that the through-piece drives the product to rotate from the front to the side, and the pad printing mechanism performs pad printing on the side. Therefore, the automatic double-sided pad printing machine of the present invention can rotate to the second side after pad printing on the first side of the product with the help of the cooperation between the fixture and the conversion mechanism, so that the pad printing on both sides of the product can be completed with one machine, thereby greatly improving work efficiency and saving time and cost. Therefore, the automatic double-sided pad printing machine of the present invention has the advantages of double-sided pad printing and improved work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the automatic double-sided pad printing machine of the present invention.

[0018] Figure 2 It is a three-dimensional structural schematic diagram of the automatic double-sided pad printing machine of the present invention from another perspective.

[0019] Figure 3 It is a side structural schematic diagram of the automatic double-sided pad printing machine of the present invention.

[0020] Figure 4 yes Figure 2 A magnified schematic diagram of point A in FIG.

[0021] Figure 5 yes Figure 3 An enlarged schematic diagram of point B in FIG. DETAILED DESCRIPTION

[0022] In order to explain the technical content and structural features of the present invention in detail, the following is a further description in conjunction with the embodiments and the accompanying drawings.

[0023] See also Figures 1 to 3 The automatic double-sided pad printing machine 100 of the present invention includes a frame 1, a turntable 2, a clamp 3, a pad printing mechanism 4 and a conversion mechanism 5. The turntable 2 is arranged on the frame 1 and rotates in a horizontal plane relative to the frame 1. There are multiple clamps 3 and they are arranged on the turntable 2 at intervals along the rotation direction of the turntable 2. The turntable 2 drives the clamps 3 to rotate intermittently to a pad printing station. The pad printing mechanism 4 includes a pad printing head 41. The pad printing head 41 is located on the pad printing station and is aligned with the clamp 3 in the up and down direction. It can be understood that after the product is transferred to the pad printing station with the clamp 3, the turntable 2 stops moving and the pad printing head 41 prints the product. A hollow structure 21 is provided in the middle of the turntable 2. The conversion mechanism 5 is located in the hollow structure 21 and is aligned with the clamp 3 located at the pad printing station in the front-to-back direction. The fixture 3 is provided with a through piece 6 for penetrating the product. The through piece 6 is arranged in the front-to-back direction. The conversion mechanism 5 is provided with a conversion head 7 facing the direction of the fixture 3. The conversion head 7 is selectively connected to the through piece 6. After being connected to the through piece 6, the conversion head 7 rotates to drive the through piece 6 to rotate, so that the product can be rotated from the first side to the second side, thereby facilitating the pad printing head 41 to print on the second side of the product. The traditional practice of requiring two pad printing machines for pad printing on both sides is abandoned, thereby improving pad printing efficiency. Specifically, the fixture 3 is a C-shaped frame with an opening facing upward, and the product is located in the opening. More specifically, as follows:

[0024] See also Figures 1 to 3, the through-piece 6 includes a rotating shaft 61 fixedly passed through the product and a set 62 connected to one end of the rotating shaft 61. It is understandable that the rotating shaft 61 moves synchronously with the product. Specifically, the rotating shaft 61 is passed through the fixture 3 horizontally, and the set 62 is passed through the fixture 3 and faces the direction of the conversion mechanism 5. When the fixture 3 is located at the pad printing station, the set 62 is now arranged opposite to the conversion head 7, and the conversion head 7 is selectively connected to the set 62. For example, the set 62 is a gear, and the conversion head 7 is a gear sleeve, and a gear-shaped groove that matches the gear is provided in the gear sleeve. It is understandable that in other embodiments, the set 62 is a polygonal prism structure, and the conversion head 7 is a prismatic sleeve, and a prismatic groove that matches the polygonal prism structure is provided in the prismatic sleeve, so it is not limited to this. That is, the cover piece 62 may be a triangular prism structure, and the conversion head 7 may be a triangular prism sleeve; the cover piece 62 may be a hexagonal prism structure, and the conversion head 7 may be a hexagonal prism sleeve, and the present invention is not limited thereto.

[0025] See also Figures 4 and 5 The conversion mechanism 5 includes a moving unit 51 that drives the conversion head 7 to connect with the through-piece 6 and a rotating unit 52 that drives the conversion head 7 to rotate. The rotating unit 52 is connected to the conversion head 7, and the rotating unit 52 is installed on the moving unit 51. The moving unit 51 drives the rotating unit 52 and the conversion head 7 to move horizontally toward or away from the through-piece 6. Specifically, in this embodiment, the rotating unit 52 is a rotary motor, but is not limited to this. The moving unit 51 includes a slide rail 511, a slider and a driving cylinder 513. The slide rail 511 is arranged along the front-back direction, the slider is slid on the slide rail 511, the driving cylinder 513 is installed on the slide rail 511, and the output end of the driving cylinder 513 is connected to the slider. When the moving unit 51 is working, the driving cylinder 513 drives the slider to slide along the slide rail 511, thereby driving the rotating unit 52 and the conversion head 7 on the slider to approach the sleeve 62 of the penetration member 6 until the conversion head 7 is sleeved on the sleeve 62. The rotating unit 52 drives the conversion head 7 to rotate, causing the conversion head 7 to rotate the sleeve 62, and the sleeve 62 drives the rotating shaft 61 to rotate, thereby driving the product to rotate from the first surface to the second surface. More specifically, the slider includes a horizontal block 5121 and a vertical block 5122. The horizontal block 5121 and the vertical block 5122 form an L-shaped block structure. The rotating unit 52 is mounted on the vertical block 5122, and the conversion head 7 is mounted on the output end of the rotating unit 52.

[0026] For example, the conversion head 7 rotates 90° to rotate the product from the front to the side. It is understandable that the product is an ISOFIX car safety seat, and when it is rotated from the front to the side, it needs to be rotated 90°. Of course, in other embodiments, according to the actual situation, that is, the shape of the product, the angle required to rotate the first side to the second side can be 180°, 270° or 360°, so it is not limited to this. Preferably, the conversion head 7 also performs a reset rotation movement. It is understandable that when the rotation angle is ≤90°, the conversion head 7 can return to the initial position in the opposite direction of the original rotation. When the rotation angle exceeds 90°, the conversion head 7 can directly return to the initial position along the original rotation direction, thereby restoring the product to its original position, facilitating the subsequent unloading work.

[0027] See also Figures 1 to 3 The pad printing mechanism 4 also includes a lifting driver 42 that drives the pad printing head 41 to move up and down. When the product is rotated into place, the lifting driver 42 drives the pad printing head 41 to descend to print the product. When one side is printed, the lifting driver 42 drives the pad printing head 41 to rise to provide avoidance space for the subsequent rotation of the product.

[0028] For example, four pad printing mechanisms 4 are provided, spaced apart in the left-right direction. Of course, in other embodiments, the number of pad printing mechanisms 4 can be increased or decreased based on actual needs. The number of pad printing mechanisms 4 can be one, two, three, or five, and is not limited thereto. In this embodiment, there is one conversion mechanism 5. Of course, in other embodiments, the number of conversion mechanisms 5 can be the same as the number of pad printing mechanisms 4, thereby increasing work efficiency.

[0029] In conjunction with the accompanying drawings, the working principle of the automatic double-sided pad printing machine 100 of the present invention is explained: the turntable 2 drives the product on the fixture 3 to move to the pad printing station, and the pad printing mechanism 4 performs the first pad printing on the front of the product, specifically, the lifting drive 42 drives the pad printing head 41 to move down to perform the first pad printing on the front of the product; after the pad printing is completed, the lifting drive 42 drives the pad printing head 41 to rise, and the conversion mechanism 5 flips the product, specifically, the driving cylinder 513 drives the slider to move toward the direction close to the kit 62 until the conversion head 7 is sleeved on the kit 62. The rotating unit 52 drives the conversion head 7 to rotate, and the conversion head 7 drives the kit 62 to rotate, thereby driving the entire rotating shaft 61 to rotate, so that the product is flipped from the first side to the second side. At this time, the lifting drive 42 drives the pad printing head 41 down again to perform pad printing on the second side of the product. In terms of overall operation, in this embodiment, after each fixture 3 on the turntable 2 has completed pad printing on the front side, the conversion mechanism 5 flips each fixture 3 that arrives at the pad printing station, so that the product on each fixture 3 is flipped to the side before pad printing.

[0030] Compared with the prior art, the automatic double-sided pad printing machine 100 of the present invention uses the turntable 2 to drive the clamp 3 to perform a rotational motion in the horizontal plane. When the clamp 3 is rotated to the pad printing station, after the pad printing mechanism 4 completes pad printing on the front of the product, it is connected to the through-piece 6 by means of the conversion head 7 of the conversion mechanism 5 and drives the through-piece 6 to perform a rotational motion, so that the through-piece 6 drives the product to rotate from the front to the side, and the pad printing mechanism 4 performs pad printing on the side. Therefore, the automatic double-sided pad printing machine 100 of the present invention can rotate to the second side after pad printing on the first side of the product with the help of the cooperation between the clamp 3 and the conversion mechanism 5, so that the pad printing on both sides of the product can be completed with one machine, thereby greatly improving work efficiency and saving time and cost. Therefore, the automatic double-sided pad printing machine 100 of the present invention has the advantages of double-sided pad printing and improved work efficiency.

[0031] The above disclosure is only a preferred embodiment of the present invention and cannot be used to limit the scope of the present invention. Therefore, equivalent changes made according to the claims of the present invention are within the scope of the present invention.

Claims

1. An automatic double-sided pad printing machine, characterized in that: The invention comprises a frame, a turntable, a fixture, a pad printing mechanism and a conversion mechanism. The turntable is arranged on the frame and rotates horizontally relative to the frame. The fixture is a C-shaped frame with an opening facing upward. The product is located in the opening. There are multiple fixtures and they are arranged on the turntable at intervals along the rotation direction of the turntable. The turntable drives the fixture to rotate intermittently to a pad printing station. The pad printing mechanism comprises a pad printing head and a lifting drive for driving the pad printing head to move up and down. The pad printing head is located on the pad printing station and is aligned with the fixture in the up and down directions. The turntable A hollow structure is provided in the middle of the disk, and the conversion mechanism is located in the hollow structure and is aligned with the fixture located at the pad printing station in the front-to-back direction. The fixture is provided with a penetrating piece for penetrating the product, and the penetrating piece is arranged in the front-to-back direction. The conversion mechanism is provided with a conversion head facing the direction of the fixture, and the conversion head is selectively connected to the penetrating piece. After being connected to the penetrating piece, the conversion head rotates to drive the penetrating piece to rotate, so that the product rotates from the first side to the second side, the first side is the front of the product, and the second side is the side of the product.

2. The automatic double-sided pad printing machine according to claim 1, characterized in that: The through-piece includes a rotating shaft fixedly placed on the product and a quilted sleeve connected to one end of the rotating shaft, the rotating shaft is horizontally placed on the fixture, and the quilted sleeve is passed through the fixture and faces the direction of the conversion mechanism; when the fixture is located at the pad printing station, the quilted sleeve is arranged opposite to the conversion head, and the conversion head is selectively connected to the quilted sleeve.

3. The automatic double-sided pad printing machine according to claim 2, characterized in that: The quilt is a gear, the conversion head is a gear sleeve, and a gear-shaped groove that matches the gear is provided in the gear sleeve.

4. The automatic double-sided pad printing machine according to claim 1, characterized in that: The conversion mechanism includes a moving unit that drives the conversion head to connect with the penetration piece and a rotating unit that drives the conversion head to rotate. The rotating unit is connected to the conversion head and is installed on the moving unit. The moving unit drives the rotating unit and the conversion head to move horizontally toward or away from the penetration piece.

5. The automatic double-sided pad printing machine according to claim 4, characterized in that: The moving unit includes a slide rail, a slider and a driving cylinder. The slide rail is arranged along the front-back direction. The slider is slidably arranged on the slide rail. The driving cylinder is installed on the slide rail. The output end of the driving cylinder is connected to the slider.

6. The automatic double-sided pad printing machine according to claim 5, characterized in that: The slider includes a horizontal block and a vertical block, the horizontal block and the vertical block form an L-shaped block structure, the rotating unit is installed on the vertical block, and the conversion head is installed on the output end of the rotating unit.

7. The automatic double-sided pad printing machine according to claim 4, characterized in that: The rotating unit is a rotating motor.

8. The automatic double-sided pad printing machine according to claim 1, characterized in that: The conversion head rotates 90° or 270° and also performs a rotational motion for resetting.

9. The automatic double-sided pad printing machine according to claim 1, characterized in that: There are at least two pad printing mechanisms, which are arranged at intervals along the left-right direction, and the number of the conversion mechanisms is consistent with the number of the pad printing mechanisms.

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