Water transfer decal apparatus

Abstract

The present application relates to a kind of water transfer printing device, for the paper flower loaded on bottom band is stripped and attached to the surface of glass bottle, paper flower and bottom band are called material band, including water soaking component, feeding assembly and embossing component, water soaking component includes the water tank for soaking bottom band and paper flower, feeding assembly includes suction head and feeding drive mechanism, suction head is used to adsorb the paper flower after soaking, feeding drive mechanism is used to drive suction head reciprocating between water soaking component and embossing component to transfer paper flower, embossing component includes rotary table, multiple tooling for loading glass bottle distributed in the outer edge of rotary table and at least one transfer printing pressure head, suction head can be docked tooling to place paper flower to the surface of glass bottle in tooling during moving, transfer printing pressure head is provided with soft film pressing on it, hole is provided on soft film pressing, and transfer printing pressure head is used to extrude glass bottle in tooling to flatten paper flower.It can improve the efficiency of transfer printing paper.

Description

Technical Field

[0001] This invention belongs to the field of glass bottle processing and is used for water transfer printing decals on the surface of glassware and other objects. Background Technology

[0002] The emergence of water transfer printing decal technology caters to modern people's diverse pursuit of quality of life and enjoyment. Decal paper technology can express both simple and bright patterns as well as rich and vibrant colors. Moreover, decal paper has high production efficiency, good uniformity, and excellent firing results. More importantly, its production cost is low, making it suitable for mass production. Therefore, decal paper decoration technology has been widely applied and promoted.

[0003] The "Background Art" section of the specification of Chinese patent document "CN106827849A" describes the water transfer printing process as follows: 1. Inorganic pigments are screen-printed onto specially made water transfer paper; 2. The printed water transfer paper is immersed in tap water for about 1 minute to separate the pattern from the base paper; 3. The pattern is carefully transferred manually onto a container and moved to the target position by the sliding motion of the water; 4. Water and air are removed from the pattern film using a rubber scraper (it is essential to remove them completely, otherwise crackling will occur during baking); 5. When the pattern film is completely dry, it is placed in a high-temperature oven and baked at 500-1000 degrees Celsius for about 90 minutes.

[0004] Commercially available decals exist for step 1, but steps 3 and 4 are mostly performed manually, resulting in low efficiency. Chinese patent document CN103625711A discloses an automatic decal machine that mechanically performs steps 3 and 4, but it still has limitations, as its applicability is restricted to containers with large openings. Chinese patent document CN115519891A discloses a water transfer printing decal machine, which is for individual decals on single glass bottles, and its efficiency still needs improvement. Summary of the Invention

[0005] The purpose of this invention is to provide a water transfer printing decal device that solves the problem of improving decal efficiency.

[0006] To achieve the above objectives, the technical solution adopted by the present invention is as follows: This invention provides a water transfer decal device for peeling and attaching decals loaded on a base strip to the surface of a glass bottle. The decals and base strip are referred to as material strips. The device includes a water immersion component, a feeding component, and an embossing component. The water immersion component includes a water tank for immersing the base strip and the decals. The feeding component includes a suction head and a feeding drive mechanism. The suction head is used to absorb the water-immersed decals. The feeding drive mechanism is used to drive the suction head to reciprocate between the water immersion component and the embossing component to transfer the decals. The embossing component includes a turntable, a plurality of fixtures for loading glass bottles distributed on the outer edge of the turntable, and at least one decaling embossing head. During movement, the suction head can engage with the fixtures to place the decals onto the surface of the glass bottle in the fixtures. The decaling embossing head is provided with a soft pressing film with holes. The decaling embossing head is used to squeeze the glass bottle in the fixtures to flatten the decals.

[0007] Preferably, the immersion assembly further includes a feeding rod for mounting the material roll, an immersion pressure roller is provided in the water tank, and the immersion assembly further includes a tensioning rod for pushing the material roll to tighten it, with a buffer spring connected to the tensioning rod to adapt to the reaction force of the material roll changes.

[0008] Preferably, the immersion assembly further includes a bottom strip take-up reel and a take-up motor. The bottom strip take-up reel is mounted on the drive shaft of the take-up motor and is used to take up the bottom strip after the decals have been peeled off.

[0009] Preferably, the suction head includes multiple negative pressure tubes, a soft suction membrane is provided in front of the negative pressure tubes, the soft suction membrane is provided with a plurality of suction holes, and the negative pressure tubes are elastically pressed against the rear side of the soft suction membrane by a compression spring.

[0010] Preferably, the suction head is provided in two sets to transfer two pieces of decals simultaneously, and the fixtures on the outer edge of the turntable are distributed in groups of two, with each group of fixtures arranged in a mirror image symmetrically, and the distance between the two groups of suction heads corresponds to the distance between the two fixtures in each group.

[0011] Preferably, there are two decal press heads, corresponding to the two fixtures on the turntable, and the time interval between the switching of a single fixture on the turntable between the two decal press heads is set to allow water to flow out between the decal and the glass bottle.

[0012] Preferably, the embossing assembly further includes a glass bottle position fine-tuning head. The tooling is provided with a cavity that matches the shape of the lower surface of the glass bottle when it is laid flat. The shape of the lower end surface of the glass bottle position fine-tuning head matches the shape of the upper surface of the glass bottle when it is laid flat. The glass bottle position fine-tuning head is located above one of the toolings and upstream of the decal position.

[0013] Preferably, the immersion assembly further includes a first flattening roller and a second flattening roller for flattening the strip to facilitate the suction head's adsorption of the decal.

[0014] Due to the application of the above-mentioned technical solution, the present invention has the following advantages compared with the prior art: The water transfer printing decal device of the present invention can immerse the decal paper on the material belt in water in a production line manner through the water immersion component. The water-immersed decal paper is then transferred to a turntable by the feeding component. A glass bottle is placed in the fixture on the turntable. The decal paper is attached to the glass bottle, and the water between the decal paper and the glass bottle is removed by a soft pressure film. The holes on the soft pressure film facilitate the removal of water. Since glass bottles can be continuously placed in the fixture on the turntable, the decal paper can be applied to the glass bottles in a production line manner, thereby improving the efficiency of decal application. Attached Figure Description

[0015] The following sections will describe some specific embodiments of the invention in detail by way of example and not limitation, with reference to the accompanying drawings. The same reference numerals in the drawings denote the same or similar parts or portions. Those skilled in the art should understand that these drawings are not necessarily drawn to scale. In the drawings: Figure 1 This is a perspective view of a preferred embodiment of the present invention; Figure 2 yes Figure 1 Schematic diagram of the structure of the immersion water assembly; Figure 3 This is a schematic diagram showing the connection between the winding motor and the bottom belt winding wheel; Figure 4 This is a 3D schematic diagram of the feeding assembly; Figure 5 yes Figure 4 Enlarged view of point A in the middle; Figure 6 This is a 3D schematic diagram of the embossed component; Figure 7 yes Figure 6 A 3D schematic diagram of the fine-tuning pressure head for the middle glass bottle; Figure 8 yes Figure 6 A 3D schematic diagram of the decal press head; Figure 9 yes Figure 6 Top view of the central turntable; The reference numerals in the attached figures are explained as follows: 1. Immersion assembly; 11. Water tank; 12. Feeding rod; 13. Immersion pressure roller; 14. Tensioning rod; 15. Buffer spring; 16. Bottom belt take-up roller; 17. Take-up motor; 18. First flattening roller; 19. Second flattening roller; 110. Color mark sensor; 2. Feeding assembly; 21. Suction head; 211. Negative pressure tube; 212. Soft suction film; 2121. Suction hole; 213. Compression spring; 214. Suction head top plate; 22. Feeding drive mechanism; 23. Guide rail; 24. First cylinder; 25. Connecting plate; 26. Guide rod; 3. Embossing assembly; 31. Turntable; 311. Feeding position; 312. Adjustment position; 313. Decal position; 314. First embossing position; 315. Second embossing position; 32. Tooling; 321. Cavity; 33. Decal press head; 331. Soft film pressing; 3311. Hole; 34. Glass bottle position fine-tuning press head; 4. Material strip roll; 41. Material strip; 411. Decorative paper; 412. Base strip; 5. Glass bottles. Detailed Implementation

[0016] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0017] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0018] Furthermore, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0019] like Figure 1 As shown, the water transfer printing decal device mainly includes a water immersion component 1, a feeding component 2, and an embossing component 3. It is used to peel off and attach the decal 411 loaded on the base tape 412 to the surface of the glass bottle 5. The decal 411 and the base tape 412 are collectively referred to as the material tape 41, which is released from the material tape roll 4.

[0020] like Figure 2 The immersion assembly 1 includes a water tank 11 filled with water to immerse the conveyor belt. An immersion roller 13 is disposed in the water tank 11. The conveyor belt 41 passes through the immersion roller 13 from below. The immersion roller 13 presses the conveyor belt 41 into the water.

[0021] After the material strip 41 is soaked in water, it reaches above the first flattening roller 18 and the second flattening roller 19. The first flattening roller 18 and the second flattening roller 19 flatten the material strip 41 to facilitate the suction head 21 above to pick up the decal 411. The bottom strip 412 is wound up by the bottom strip take-up roller 16. Figure 3 The bottom belt take-up reel 16 is connected to the drive shaft of the take-up motor 17.

[0022] The immersion assembly 1 also includes a color mark sensor 110, used to monitor whether the decal reaches below the suction head 21 in order to stop the winding motor 17. The color mark sensor 110 is signal-connected to the winding motor 17.

[0023] Two strip rolls 4 can be set up at the same time and unwound simultaneously. There are two sets of suction heads 21, so that two pieces of decal paper 411 can be adsorbed and transferred at the same time.

[0024] like Figure 2 The strip roll 4 is fitted onto the feeding rod 12, and the feeding rod 12 can simultaneously accommodate two strip rolls 4. A tensioning rod 14 is also provided, which is used to tension the strip 41, keeping it in a taut state. The tensioning rod 14 is movable, such as... Figure 1 The tensioning rod 14 is elastically pressed against the material belt 41 by a buffer spring 15 and a rocker arm, which can adapt to the changing reaction force on the material belt 41, which is beneficial to protect the material belt 41 and also keeps the material belt 41 in a taut state.

[0025] like Figure 4 The feeding assembly 2 shown is used to absorb the soaked decal paper 411 and transfer it to the embossing assembly 3. The feeding assembly 2 includes two guide rails 23, on which a slidable connecting plate 25 is provided, and a first cylinder 24 is provided on the connecting plate 25. A suction head 21 is provided on the piston rod of the first cylinder 24. The first cylinder 24 drives the suction head 21 downward or retracts it upward.

[0026] like Figure 5 As shown Figure 4 The enlarged view at point A shows that a single suction head 21 includes multiple negative pressure tubes 211. The upper end of the negative pressure tube 211 is connected to a negative pressure system (not shown), and the lower end of the negative pressure tube 211 gently rests against the upper surface of the soft suction membrane 212. The soft suction membrane 212 is a soft rubber membrane with several adsorption holes 2121. The soft suction membrane 212 is connected to the suction head top plate 214 via clamps and columns. When the negative pressure tube 211 generates negative pressure, it can adsorb the decorative paper 411 below onto the lower surface of the soft suction membrane 212. The soft suction membrane 212 has a large contact area with the decorative paper 411, which protects the decorative paper 411 and squeezes out water from the upper surface of the decorative paper 411 to a large extent. The water is discharged from the adsorption holes 2121, and the soft suction membrane 212 also helps to make the suction force uniform.

[0027] A compression spring 213 is fitted on the negative pressure tube 211. The compression spring 213 is in a compressed state between the suction head top plate 214 and the lower end of the negative pressure tube 211 where the diameter increases. The compression spring 213 causes the negative pressure tube 211 to press slightly against the upper surface of the soft suction film 212.

[0028] like Figure 4 The device is equipped with two suction heads 21, the spacing between which matches the single-set tooling 32 on the turntable 31 (described later). The two suction heads 21 can simultaneously pick up two pieces of decorative paper 411, achieving double the efficiency. The suction heads 21 are guided by guide rods 26, which pass through the connecting plate 25.

[0029] Two guide rails 23 allow the connecting plate 25 to slide smoothly. The sliding force is generated by the feeding drive mechanism 22, which is a cylinder. The piston rod of the cylinder is connected to the connecting plate 25.

[0030] The connecting plate 25 slides to the turntable 31, causing the negative pressure tube 211 to connect to positive pressure, which allows the decal 411 to be released onto the surface of the glass bottle 5. Figure 9 The decal 313 is used to attach the decal 411 to the surface of the glass bottle 5.

[0031] like Figure 9 The turntable 31 is rotatable. Multiple sets of fixtures 32 are provided on the outer edge of the turntable 31, each set including two fixtures 32. Each fixture 32 has a cavity 321, the shape of which matches the glass bottle for placement. The two fixtures 32 in each set are mirror-symmetrical, and the positions requiring decal application are close together to minimize the distance between the two decal application heads 33 (or the glass bottle position fine-tuning head 34).

[0032] During the rotation of the turntable 31, the tooling 32 is switched sequentially between the feeding position 311, the adjustment position 312, the decal position 313, the first embossing position 314, and the second embossing position 315.

[0033] The loading position 311 is used for manually placing the glass bottle to be decorated onto the fixture 32. When the suction head 21 is connected to the two fixtures 32 at the loading position 311, the spacing between the suction head 21 matches the distance between the two fixtures 32, so that the decorative paper 411 can be directly applied.

[0034] The adjustment position 312 is used to fine-tune the position of the glass bottle, making the glass bottle fit more closely with the fixture 32. The adjustment position 312 is equipped with... Figure 7 The glass bottle position fine-tuning head 34 shown has a lower surface that matches the shape of the upper surface of the glass bottle when it is laid flat, while the cavity 321 matches the shape of the lower surface of the glass bottle when it is laid flat. By pressing the glass bottle downwards with the glass bottle position fine-tuning head 34, the glass bottle can fit more closely with the tooling 32, ensuring the precise position of the glass bottle and making the subsequent decal placement more accurate.

[0035] Decorative paper 411 is affixed to the glass bottle at the decal position 313.

[0036] Then the glass bottle Figure 9 The first embossing position 314 and the second embossing position 315 press the decal paper 411 twice through the decal pressing head 33.

[0037] like Figure 8 The decal pressing head 33 shown includes a flexible pressing film 331 with several holes 3311 (at least one hole 3311) for drainage. The flexible pressing film 331 is a soft rubber membrane. The flexible pressing film 331 presses against the glass bottle, flattening the decal and removing moisture between the decal 411 and the glass bottle.

[0038] The decal applicator 33 at the first embossing position 314 initially flattens the decal 411. When the glass bottle rotates to the second embossing position 315, the decal 411 will have slight wrinkles due to moisture loss. At this time, the decal 411 is flattened a second time to make it smooth. The time it takes for the glass bottle to rotate from the first embossing position 314 to the second embossing position 315 is set to allow sufficient water to drain from between the decal 411 and the glass bottle.

[0039] The above embodiments are only for illustrating the technical concept and features of the present invention. Their purpose is to enable those skilled in the art to understand the content of the present invention and implement it accordingly. They should not be used to limit the scope of protection of the present invention. All equivalent changes or modifications made in accordance with the spirit and essence of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A water transfer printing decal device for peeling off and attaching decal paper loaded on a base tape to the surface of a glass bottle, wherein the decal paper and the base tape are referred to as material tape, characterized in that, The assembly includes a water-soaking component (1), a feeding component (2), and an embossing component (3). The water-soaking component (1) includes a water tank (11) for soaking the base tape and the decal. The feeding component (2) includes a suction head (21) and a feeding drive mechanism (22). The suction head (21) is used to absorb the soaked decal, and the feeding drive mechanism (22) is used to drive the suction head (21) to reciprocate between the water-soaking component (1) and the embossing component (3) to transfer the decal. The embossing component (3) includes a turntable (31). The turntable (31) has multiple fixtures (32) for loading glass bottles distributed on its outer edge, and at least one decal press head (33). The suction head (21) can engage with the fixtures (32) during movement to place the decal onto the surface of the glass bottle in the fixtures (32). The decal press head (33) is provided with a soft pressing film (331) and holes (3311) in the soft pressing film (331). The decal press head (33) is used to squeeze the glass bottle in the fixtures (32) to flatten the decal.

2. The water transfer printing decal device according to claim 1, characterized in that: The immersion assembly (1) also includes a feeding rod (12) for mounting the material roll, an immersion pressure roller (13) is provided in the water tank (11), and the immersion assembly (1) also includes a tensioning rod (14) for pushing the material roll to tension the material roll, and a buffer spring (15) is connected to the tensioning rod (14) to adapt to the reaction force of the material roll change.

3. The water transfer printing decal device according to claim 1, characterized in that: The immersion assembly (1) also includes a bottom belt take-up roller (16) and a take-up motor (17). The bottom belt take-up roller (16) is mounted on the drive shaft of the take-up motor (17) and is used to take up the bottom belt after the paper stripping is removed.

4. The water transfer printing decal device according to claim 1, characterized in that: The suction head (21) includes multiple negative pressure tubes (211), and a soft suction membrane (212) is provided in front of the negative pressure tubes (211). The soft suction membrane (212) is provided with a number of suction holes (2121). The negative pressure tubes (211) are elastically pressed against the rear side of the soft suction membrane (212) by a compression spring (213).

5. The water transfer printing decal device according to claim 1, characterized in that: The suction head (21) is provided in two sets to transfer two pieces of decorative paper at the same time. The fixtures (32) on the outer edge of the turntable (31) are distributed in groups of two. Each group of fixtures (32) is arranged in a mirror symmetrical manner. The distance between the two groups of suction heads (21) corresponds to the distance between the two fixtures (32) in each group of fixtures (32).

6. The water transfer printing decal device according to claim 1, characterized in that: There are two decal press heads (33), corresponding to the two fixtures (32) on the turntable (31), and the time interval between the switching of a single fixture (32) between the two decal press heads (33) is set.

7. The water transfer printing decal device according to claim 1, characterized in that: The embossing assembly (3) also includes a glass bottle position fine-tuning head (34). The tooling (32) is provided with a cavity (321) that matches the shape of the lower surface of the glass bottle when it is laid flat. The shape of the lower surface of the glass bottle position fine-tuning head (34) matches the shape of the upper surface of the glass bottle when it is laid flat. The glass bottle position fine-tuning head (34) is located above one of the tooling (32) and upstream of the decal position.

8. The water transfer printing decal device according to claim 1, characterized in that: The immersion assembly (1) also includes a first flattening roller (18) and a second flattening roller (19) for flattening the strip to facilitate the suction head (21) to adsorb the decal.

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