A plastic bottle surface silk screen alignment device

Abstract

The utility model discloses a kind of plastic bottle body surface silk printing alignment devices, it includes the positioning plug for inserting the bottle mouth of to-be-printed bottle body to carry out positioning, with the top side fixed connection of the positioning plug, positioning block, with the fixed connection of the positioning plug and extend to both sides, the beam of carrying load, two free ends with the both ends of beam of carrying load detachable quick connection U-shaped frame, located U-shaped frame bottom inner side and with the bottom of to-be-printed bottle body adaptation bottom support, the positioning block is equipped with positioning matching part, for laser direct penetration alignment hole. Plastic bottle body surface silk printing alignment device will U-shaped frame and beam of carrying load form loop structure as the clamp of disassembling assembly around bottle body, the both ends of bottle body are positioned and prevented from rotating;Positioning block is equipped with the positioning matching part of with station matching positioning, also be equipped with alignment hole for station detection determination, to carry out unified accurate positioning between multiple stations, it is convenient for multiple printing accurate positioning, improve the accurate effect of printing.

Description

Technical Field

[0001] This utility model relates to printing technology on the surface of plastic bottles, and more particularly to a screen printing alignment device for the surface of plastic bottles. Background Technology

[0002] Printing processes include offset printing and screen printing; screen printing is also known as silkscreen printing. Printing on paper is generally more convenient, allowing for both offset and screen printing, and offset printing can also be done on bottle surfaces. For less demanding applications, monochrome printing can be done on plastic bottles, allowing the ink to dry and harden before filling. However, for applications requiring color designs, a printed label film is typically applied to the bottle surface, allowing for rich image effects. However, this design is easily peeled off and counterfeited. Therefore, we developed a technology for multi-color printing on bottle surfaces. However, the multiple steps in this multi-color printing process require precise alignment; otherwise, the printed images will be misaligned, resulting in unsatisfactory printing results. Summary of the Invention

[0003] To address the shortcomings of existing technologies, the technical problem this invention aims to solve is to provide a screen printing alignment device for plastic bottle surfaces that can achieve unified and precise positioning across multiple workstations.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a screen printing alignment device for plastic bottle surface, which includes a positioning plug for positioning by inserting it into the bottle mouth of the bottle to be printed, a positioning block fixedly connected to the top side of the positioning plug, a carrying beam fixedly connected to the positioning plug and extending to both sides, a U-shaped frame with two free ends that can be detachably and quickly connected to the two ends of the carrying beam, and a bottom support located on the inner side of the bottom of the U-shaped frame and adapted to the bottom of the bottle to be printed. The positioning block is provided with a positioning matching part and a calibration through hole for direct laser penetration.

[0005] As an improvement to the technical solution of the screen printing alignment device for plastic bottle surface of this utility model, the positioning matching part is a positioning groove, and multiple continuous work stations are provided with positioning protrusions that are adapted to the positioning groove.

[0006] As an improvement to the technical solution of the screen printing alignment device on the surface of the plastic bottle of this utility model, the positioning groove is arc-shaped or V-shaped.

[0007] As an improvement to the technical solution of the screen printing alignment device on the surface of the plastic bottle of this utility model, the positioning block is provided with at least two alignment holes that are intersecting and separated from each other.

[0008] As an improvement to the technical solution of the screen printing alignment device for plastic bottle surface of this utility model, multiple continuous workstations are equipped with laser spotlights and laser sensors located on the outer sides of both ends of the alignment perforation.

[0009] As an improvement to the technical solution of the screen printing alignment device for plastic bottle surface of this utility model, the positioning block is provided with a transparent part located at one end of the alignment perforation, and the transparent part has two dividing surfaces that intersect with the alignment perforation.

[0010] As an improvement to the technical solution of the screen printing alignment device for plastic bottle surface of this utility model, positioning contact parts and interconnectors are respectively provided between the two ends of the carrying beam and the two ends of the U-shaped frame.

[0011] As an improvement to the technical solution of the screen printing alignment device for plastic bottle surface of this utility model, the connector includes a snap-fit ​​arm connected to the outer extension of the end of the carrying beam, a side magnetic attraction pair provided at the lower end of the snap-fit ​​arm and the outside of the U-shaped frame, and a snap-fit ​​groove and a convex snap provided between the inner side of the snap-fit ​​arm and the outer side of the U-shaped frame, wherein the snap-fit ​​groove and the convex snap are matched and snapped together.

[0012] As an improvement to the technical solution of the screen printing alignment device for plastic bottle surface of this utility model, the positioning contact part includes the end face of the carrying beam and the inner side wall of the U-shaped frame, and the top face of the U-shaped frame and the bottom side of the end extension of the carrying beam.

[0013] As an improvement to the technical solution of the screen printing alignment device for plastic bottle surface of this utility model, the connector includes an inner magnetic pair located between the lower end of the carrying beam and the inner side of the U-shaped frame, which can attract each other.

[0014] The beneficial effects of this utility model are as follows: the screen printing alignment device for plastic bottle surfaces uses a U-shaped frame and a carrying beam to form a loop structure as a clamp around the bottle. The U-shaped frame and the carrying beam can be disassembled and assembled to allow loading and unloading of the plastic bottle. The bottom of the U-shaped frame is provided with a base to position the plastic bottle, and the positioning plug positions the bottle mouth, thereby positioning both ends of the bottle and preventing it from rotating. In addition, a positioning block is integrally fixed above the positioning plug. The positioning block has a positioning matching part for matching and positioning with the work station, and also has a calibration through hole for the work station to detect and judge. Thus, the clamp part of the alignment device, together with the bottle, can be uniformly and accurately positioned between multiple work stations, which facilitates consistent and accurate positioning for multiple printing processes, thereby improving the accuracy of printing. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the front structure of a screen printing alignment device for a plastic bottle body and the bottle body it is clamped in, according to the present invention.

[0016] Figure 2 This is a frontal structural diagram of the disassembled state of the screen printing alignment device for the surface of a plastic bottle according to this utility model.

[0017] Figure 3 A top view of the positioning block. Detailed Implementation

[0018] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings.

[0019] like Figure 1 , Figure 2 , Figure 3 As shown, this utility model discloses a screen printing alignment device for plastic bottle surfaces, which includes a positioning plug 11 for positioning by inserting it into the bottle mouth of the bottle to be printed, a positioning block 15 fixedly connected to the top side of the positioning plug, a carrying beam 12 fixedly connected to the positioning plug and extending to both sides, a U-shaped frame 13 with two free ends that can be detachably and quickly connected to the two ends of the carrying beam 12, and a base support 19 located on the inner side of the bottom of the U-shaped frame 13 and adapted to the bottom of the bottle to be printed. The positioning block 15 is provided with a positioning matching part 52 and a calibration through hole 53 for direct laser penetration. The screen printing alignment device for plastic bottles uses a U-shaped frame 13 and a carrying beam 12 to form a loop structure as a clamp around the bottle 99. The U-shaped frame 13 and the carrying beam 12 can be disassembled and assembled to load and unload the plastic bottle 99. The bottom of the U-shaped frame 13 is provided with a base support 19 to position the plastic bottle 99, and a positioning plug positions the bottle mouth of the bottle 99, thereby positioning both ends of the bottle 99 and preventing it from rotating. In addition, a positioning block 15 is integrally fixed above the positioning plug 11. The positioning block 15 is provided with a positioning matching part 52 for matching and positioning with the work station, and also has a calibration through hole 53 for the work station to detect and judge. This allows the clamping part of the alignment device, together with the bottle, to be uniformly and accurately positioned between multiple work stations, which facilitates consistent and accurate positioning for multiple printing processes, thereby improving the accuracy of printing.

[0020] The positioning and matching part 52 is a positioning groove, and multiple consecutive workstations are provided with positioning protrusions that are adapted to the positioning groove. This ensures that the fixture and bottle are installed in precise positions and orientations at each workstation, achieving uniform and consistent positioning for easy screen printing on the front or back of the bottle. During printing, the relative positional relationship between the bottle and the printing head is precise and consistent at each workstation printing the same side, guaranteeing relatively accurate positioning and enabling color screen printing that typically requires multiple passes.

[0021] Furthermore, the positioning groove is arc-shaped or V-shaped, facilitating precise positioning in the planar direction and locking in two dimensions. The V-shaped positioning groove consists of at least two intersecting positioning grooves on the positioning block. Correspondingly, positioning protrusions are provided at each printing station to lock the bottle face up or face down / back up before printing. This requires the feeding conveyor belt and the access mechanism to control the direction of the fixture.

[0022] The positioning block 15 is provided with at least two intersecting and separate calibration holes 53. One calibration hole 53 can detect the positioning accuracy in a linear direction, while the rotational error along the hole cannot be measured. When the two calibration holes 53 are detected simultaneously, the orientation of the positioning block 15 can be accurately locked, thereby improving the positioning accuracy of the positioning fixture.

[0023] Furthermore, multiple continuous workstations are equipped with laser spotlights and laser sensors located on the outer sides of both ends of the calibration perforation 53, respectively, so that the position can be determined through the calibration perforation 53. The laser sensors feed back the detection data to the controller. Printing is only carried out if the position is determined to be accurate; otherwise, positioning adjustment is required, thereby ensuring that the same printing surface has extremely accurate positioning when printed at different workstations.

[0024] The positioning block 15 has a transparent portion located at one end of the calibration perforation 53. This transparent portion has two intersecting dividing surfaces that meet the calibration perforation 53, allowing it to be seen through from the transparent side, which facilitates observation of the direction of laser projection and makes it convenient to adjust the orientation.

[0025] The two ends of the carrying beam 12 and the two ends of the U-shaped frame 13 are respectively provided with positioning contact parts and connectors. The positioning contact parts ensure the structural accuracy of the clamping fixture, while the connectors enable the two ends of the carrying beam 12 to be quickly connected to the U-shaped frame 13 to form a stable loop structure.

[0026] Furthermore, such as Figure 1 , Figure 2As shown, the connector includes a snap-fit ​​arm 22 connected to the outer extension of the end of the carrying beam 12, a side magnetic pair 23 located at the lower end of the snap-fit ​​arm 22 and the outer side of the U-shaped frame 13, and a snap-fit ​​groove 35 and a protruding snap 25 located between the inner side of the snap-fit ​​arm 22 and the outer side of the U-shaped frame 13. The snap-fit ​​groove 35 and the protruding snap 25 match and snap together, so that the snap-fit ​​arm 22 and the U-shaped frame 13 are quickly snapped together. The side magnetic pair 23 prevents the snap-fit ​​arm 22 from swinging outward and sticking to the outer side of the end of the U-shaped frame 13, thereby quickly locking the snap-fit ​​arm 12 and the U-shaped frame 13 together, so that the end of the carrying beam 12 and the end of the U-shaped frame 13 are connected together to form a stable clamp. It is also easy to disassemble. The snap-fit ​​arm 22 can be pried open by prying open the side magnetic pair, thereby releasing the snap-fit ​​between the snap-fit ​​groove 35 and the protruding snap 25, which facilitates the automatic operation of the machine equipment.

[0027] Furthermore, such as Figure 2 As shown, the positioning contact part includes the end face 12a of the carrying beam 12 and the inner side wall 13a of the U-shaped frame 13, the top face 13b of the U-shaped frame 13 and the bottom side 12b of the end extension of the carrying beam 12, thus achieving precise positioning in two directions.

[0028] The connector includes an inner magnetic pair 32 located between the lower end of the carrying beam 12 and the inner side of the U-shaped frame 13, which can attract each other, and can pre-attach the end of the carrying beam 12 to the U-shaped frame 13.

[0029] The above-disclosed embodiments are merely preferred embodiments of the present utility model and should not be construed as limiting the scope of the present utility model. Therefore, any equivalent variations made in accordance with the scope of the present utility model application shall still fall within the scope of the present utility model.

Claims

1. A screen printing alignment device for the surface of a plastic bottle, characterized in that: It includes a positioning plug for positioning the bottle mouth of the bottle to be printed, a positioning block fixedly connected to the top side of the positioning plug, a carrying beam fixedly connected to the positioning plug and extending to both sides, a U-shaped frame with two free ends that can be detachably and quickly connected to the two ends of the carrying beam, and a bottom support located on the inner side of the bottom of the U-shaped frame and adapted to the bottom of the bottle to be printed. The positioning block is provided with a positioning matching part and a calibration perforation for direct laser penetration.

2. The plastic bottle surface silk printing alignment device according to claim 1, characterized in that: The positioning and matching part is a positioning groove, and multiple consecutive workstations are provided with positioning protrusions that are adapted to the positioning groove.

3. The device according to claim 2, wherein: The positioning groove is arc-shaped or V-shaped.

4. The device according to claim 1, wherein: The positioning block is provided with at least two alignment holes that are intersecting and separate from each other.

5. The plastic bottle surface silk printing alignment device according to claim 4, characterized in that: Multiple continuous workstations are equipped with laser spotlights and laser sensors located on the outer sides of both ends of the calibration perforation.

6. The device according to claim 1, wherein: The positioning block has a transparent portion located at one end of the calibration perforation, and the transparent portion has two dividing surfaces that intersect the calibration perforation.

7. The device according to claim 1, wherein: Positioning contact parts and interconnectors are respectively provided between the two ends of the carrying beam and the two ends of the U-shaped frame.

8. The device according to claim 7, wherein: The connector includes a snap-fit ​​arm connected to the outer extension of the end of the carrying beam, a side magnetic pair located at the lower end of the snap-fit ​​arm and the outer side of the U-shaped frame, and a snap-fit ​​groove and a convex snap-fit ​​located between the inner side of the snap-fit ​​arm and the outer side of the U-shaped frame, wherein the snap-fit ​​groove and the convex snap-fit ​​are matched and snapped together.

9. The device according to claim 7, wherein: The positioning contact portion includes the end face of the carrying beam and the inner wall of the U-shaped frame, and the top face of the U-shaped frame and the bottom side of the end extension of the carrying beam.

10. The device of claim 7, wherein: The connector includes an inner magnetic pair located between the lower end of the carrying beam and the inner side of the U-shaped frame, which can attract each other.

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