CN116177898B - Glass bottle etching equipment and etching process thereof - Google Patents

Abstract

The application relates to the technical field of etching, in particular to glass bottle etching equipment and an etching process thereof, wherein the glass bottle etching equipment comprises a bottle body fixing device, an etching protection device and a spraying device, wherein the bottle body fixing device is used for fixing a glass bottle, the etching protection device is used for protecting and isolating a non-etching area of the glass bottle, a cofferdam groove is further formed around an area to be etched on the upper side of the glass bottle, and the spraying device is used for spraying etching liquid into the cofferdam groove for etching. According to the application, the surface of the glass bottle is divided by the etching protection device, the area to be etched is isolated independently, and a cofferdam groove structure is formed, so that the problems of high consumption and cost of glass bottle etching ink, sagging of etching solution, insufficient etching depth of a liquid shortage part, uneven patterns, fuzzy patterns and high defective rate in the prior art are solved.

Description

Glass bottle etching equipment and etching process thereof

Technical Field

The application relates to the technical field of etching, in particular to glass bottle etching equipment and an etching process thereof.

Background

At present, glass bottle etching is generally carried out by printing glass corrosion-resistant ink on a glass bottle in a screen printing mode to obtain an etching-resistant layer of a pattern, drying the ink after screen printing and the like, then etching by using a prepared hydrofluoric acid aqueous solution, wherein hydrofluoric acid has stronger corrosiveness, and corresponding operation protection is needed in the operation process. When the required image-text depth is etched, the etched glass bottle can be obtained by washing with clear water. When the glass round bottle body is coated locally, the bottle body has radian, so that etching liquid can be sprayed to form a certain sagging, and the existing method is to increase the printing area of the corrosion-resistant ink so as to achieve a complete protection effect. However, this method has a large amount of the anti-corrosive ink, which increases etching cost.

Disclosure of Invention

In order to reduce the production cost, the application provides glass bottle etching equipment and an etching process thereof, wherein the consumption of corrosion-resistant ink is reduced under the condition of achieving the same etching effect.

The application provides glass bottle etching equipment and an etching process thereof, which adopt the following technical scheme:

The glass bottle etching equipment comprises a machine table, wherein a bottle fixing device, an etching protection device and a spraying device are arranged on the machine table, the bottle fixing device comprises a first support and a second support which are arranged in a front-back opposite mode, a first fixing seat is arranged on the upper portion of the first support, a rotating shaft is arranged on the first fixing seat, and the rotating shaft is in transmission connection with a first motor output end arranged on the machine table; the upper part of the second bracket is provided with a first pushing cylinder, and the moving end, close to the first fixing seat, of the first pushing cylinder is rotationally connected with a second fixing seat; the etching protection device comprises a first lining assembly and a second lining assembly which are arranged on the left side and the right side of the bottle body fixing device, the first lining assembly comprises a first installation fork frame, a second pushing cylinder and a third support, the second pushing cylinder is arranged on the upper portion of the third support, and the first installation fork frame is arranged on the movable end, close to the second lining assembly, of the second pushing cylinder; the two insert rod ends of the first mounting fork frame are respectively provided with a mounting plate, one side of each mounting plate, which is close to the second bushing assembly, is provided with an arc-shaped fixing groove, a first anti-corrosion die sleeve is movably mounted between the two mounting plates of the first mounting fork frame, the upper part of the first anti-corrosion die sleeve is provided with a first opening part, the second bushing assembly is provided with a second anti-corrosion die sleeve, the second anti-corrosion die sleeve is used for being matched with the first anti-corrosion die sleeve to clamp a workpiece, and the first opening part and the second opening part of the second anti-corrosion die sleeve are matched with each other after the workpiece is clamped to form a cofferdam groove on the upper part of the workpiece; the spraying device is arranged above the cofferdam groove and is used for spraying etching liquid into the cofferdam groove.

By adopting the technical scheme, the bottle body fixing device fixes a workpiece, namely the ink-coated glass bottle with the silk-screen corrosion-resistant ink, the second fixing seat is pushed by the first pushing cylinder, the ink-coated glass bottle is clamped between the first fixing seat and the second fixing seat, the motor is controlled to drive the first fixing seat to rotate, and the area to be etched of the ink-coated glass bottle is turned over to the upper part; and then starting the second pushing cylinder and the third pushing cylinder, wherein the third pushing cylinder is of a second bushing assembly structure, and the second bushing assembly structure approximates to the first bushing assembly, so that the description is omitted. The first anti-corrosion die sleeve and the second anti-corrosion die sleeve are clamped on the ink-coated glass bottle, the first anti-corrosion die sleeve and the second anti-corrosion die sleeve are clung to the surface of the ink-coated glass bottle, a cofferdam groove is formed at the first opening part and the second opening part of the first anti-corrosion die sleeve and the second anti-corrosion die sleeve, etching liquid is sprayed into the cofferdam groove, and the non-etching area on the surface of the ink-coated glass bottle is protected through the blocking of the cofferdam groove, so that the local accurate etching of the glass bottle is realized, the ink coating amount of the non-etching area is reduced, and the use cost of ink is reduced. In addition, when the connecting line height of the two ends of the cofferdam groove on the cross section is higher than the surface of the glass bottle, namely the surface of the glass bottle in the cofferdam groove is always positioned below the liquid level of the etching liquid, the problem that the etching liquid is directly sprayed locally to generate sagging of the etching liquid, the generated etching liquid on the upper part is insufficient, and the upper part of the etched pattern is too shallow after etching is solved, so that the local etching quality of the glass bottle is further improved.

Optionally, the inner walls of the first anti-corrosion die sleeve and the second anti-corrosion die sleeve around the cofferdam groove are provided with a first channel, the first channel is connected with a paraffin channel arranged in the first anti-corrosion die sleeve or the second anti-corrosion die sleeve, and the paraffin channel is connected with a paraffin feeding device arranged on the machine table.

Through adopting above-mentioned technical scheme, through injecting paraffin in the first channel around cofferdam groove, form sealedly, further solve because glass bottle body quality is uneven, the space appears between glass bottle body and first anticorrosion die sleeve, the second anticorrosion die sleeve, the problem of etching solution weeping improves product etching quality.

Optionally, the inner wall of the first anti-corrosion die sleeve or the second anti-corrosion die sleeve is provided with a plurality of independent grooves, the walls of the adjacent grooves are provided with communicated through holes, and the cofferdam groove is communicated with the grooves nearby.

Through adopting above-mentioned technical scheme, the cell wall of recess has certain thickness, through denser recess setting, makes the cell wall of recess cover body surface area, and reduces printing ink silk screen printing area to further reduce printing ink quantity, reduce etching cost.

Optionally, the top surface of recess cell wall is equipped with the second channel, and the second channel is equipped with the runner intercommunication in with the recess cell wall, and the runner is connected with the paraffin passageway that first anticorrosion die sleeve or second anticorrosion die sleeve were equipped with.

Through adopting above-mentioned technical scheme, pour into paraffin into in the second channel, strengthen the leakproofness that recess cell wall and body laminate, eliminate the space, prevent etching solution weeping, improve product etching quality.

Optionally, the groove at the lower part of the first anti-corrosion die sleeve or the second anti-corrosion die sleeve is connected with a liquid suction device arranged on the machine.

Through adopting above-mentioned technical scheme, the etching solution in recess and cofferdam groove can be taken away to the imbibition device, prevents that etching protection device from breaking away from the condition of sagging of a large amount of etching solution after, improves product quality.

Optionally, first anticorrosion die sleeve outer wall integrated into one piece has first arc wall and second arc wall, and the opening of first arc wall and second arc wall is upwards, and the second arc wall is located first arc wall below, and second arc wall tip is equipped with interior protruding knot, is equipped with head rod and second connecting rod between two mounting panels, and head rod and second connecting rod wear to locate respectively in first arc wall and the second arc wall.

Through adopting above-mentioned technical scheme, be swing joint between first anticorrosion die sleeve or the second anticorrosion die sleeve and the mounting panel, make first anticorrosion die sleeve can correspond the change according to the difference of etching pattern, improve the application range and the practicality of equipment. Meanwhile, the first anti-corrosion die sleeve made of the anti-corrosion plastic has certain elasticity, and can be quickly clamped into the connecting rod between the two mounting plates through the arc-shaped groove structure formed integrally with the first anti-corrosion die sleeve, so that the complexity and the use difficulty of the equipment are reduced, and the use and the maintenance are convenient.

Optionally, the board below the bottle fixing device is provided with a flushing tank, the periphery of the flushing tank is provided with a splash-proof surrounding shield, and one side of the flushing tank is provided with a flushing device for flushing the workpiece.

Through adopting above-mentioned technical scheme, washing unit can contain the liquid spraying unit of different functions such as cooling water shower nozzle, hot water shower nozzle and deinking agent, deacidification agent, can wash the body or carry out temperature control to the anticorrosion die sleeve to improve etching quality.

Optionally, the machine is equipped with motor lead screw device, is equipped with first removal seat and second on the motor lead screw device and removes the seat, and spray set locates on the first removal seat, is equipped with material feeding unit on the second removal seat.

Through adopting above-mentioned technical scheme, first removal seat and second remove the seat be equipped with respectively with lead screw complex nut subassembly, by motor screw device's drive and carry out synchronous movement, realized the automatic unloading of going up of glass bottle, the structure is succinct, the function of increase equipment.

Optionally, material feeding unit includes the lift jar, and the expansion end on lift jar upper portion is equipped with the second motor, and the second motor output is equipped with the feed arm lock, and feed arm lock tip is equipped with the clamping jaw, and the clamping jaw includes the U-shaped splint that two intervals set up, and the inboard end of U-shaped splint is equipped with anticreep rubber.

Through adopting above-mentioned technical scheme, glass bottle gets into in the U-shaped splint by anticreep rubber spacing, reaches bottle fixing device top under motor screw device's drive, then descends through the lift jar and send the glass bottle to bottle fixing device's first fixing base, between the second fixing base to fix, and the U-shaped splint rises again after the fixing, accomplishes the material loading process, has realized automatic pay-off step, improves equipment operation function.

A glass bottle etching process comprising the steps of:

a. Printing at least one layer of corrosion-resistant ink on the glass bottle to be etched by using an silk-screen printing mold to form an ink protection layer with hollowed-out patterns, thereby obtaining an ink-coated glass bottle;

b. Placing the ink-coated glass bottle in the glass bottle etching equipment, turning over the hollowed pattern of the ink-coated glass bottle to the upper part, clamping the ink-coated glass bottle by an etching protection device, forming an independent cofferdam groove structure around the hollowed pattern, and then spraying etching liquid into the cofferdam groove by using a spraying device to etch to obtain an etched glass bottle;

c. and cleaning the etched glass bottle, and removing the etching liquid and the printing ink protective layer to obtain the surface-engraved glass bottle.

By adopting the technical scheme, when the silk screen printing mould prints the anti-corrosion ink, as long as the targeted printing is carried out around the area to be etched, the required printing area is smaller, and the non-etching area is isolated and protected by the etching protection device, so that the consumption of the printing ink is effectively reduced and the production cost is reduced under the condition of completing the etching operation.

In summary, the present application includes at least one of the following beneficial technical effects: according to the application, the surface of the glass bottle is divided by the etching protection device, the area to be etched is isolated independently, and a cofferdam groove structure is formed, so that the problems of high consumption and cost of glass bottle etching ink, sagging of etching solution, insufficient etching depth of a liquid shortage part, uneven patterns, fuzzy patterns and high defective rate in the prior art are solved.

Drawings

Fig. 1 is a schematic diagram of the structure of the present application.

FIG. 2 is a schematic diagram of an etching protection device according to the present application.

FIG. 3 is a schematic view of a first bushing assembly of the present application.

Fig. 4 is a schematic view of the first corrosion resistant die sleeve of the present application.

Fig. 5 is an enlarged view of a portion a in fig. 4.

Reference numerals illustrate: 1. a machine table; 2. a bottle body fixing device; 21. a first bracket; 22. a first fixing seat; 23. a rotating shaft; 24. a first motor; 25. a second bracket; 26. a first push cylinder; 27. the second fixing seat; 3. an etching protection device; 31. a first bushing assembly; 311. a first mounting fork; 312. a mounting plate; 3121. a fixing groove; 313. a first corrosion-resistant die sleeve; 3132. a first arc-shaped groove; 3133. a second arc-shaped groove; 3134. an inner convex buckle; 3135. a first channel; 3136. a paraffin passage; 3137. a groove; 3138. a through hole; 3139. a second channel; 3130. a flow passage; 314. a first connecting rod; 315. a second connecting rod; 316. a second pushing cylinder; 317. a third bracket; 32. a second bushing assembly; 321. a second corrosion-resistant die sleeve; 33. a cofferdam groove; 4. a spraying device; 5. a wax feeding device; 6. a liquid suction device; 7. a flushing tank; 71. a splash-proof enclosure; 8. a flushing device; 9. a motor lead screw device; 91. a first movable seat; 92. a second movable seat; 10. a feeding device; 101. a lifting cylinder; 102. a second motor; 103. a feeding clamping arm; 105. u-shaped clamping plates; 106. an anti-drop rubber; 100. an ink-coated glass bottle; 200. and a control device.

Detailed Description

The application is described in further detail below with reference to fig. 1-5.

The embodiment of the application discloses glass bottle etching equipment and an etching process thereof.

Referring to fig. 1-2, a glass bottle etching device comprises a machine 1, wherein a bottle fixing device 2, an etching protection device 3 and a spraying device 4 are arranged on the machine 1, the bottle fixing device 2 comprises a first bracket 21 and a second bracket 25 which are oppositely arranged front and back, a first fixing seat 22 is arranged at the upper part of the first bracket 21, a rotating shaft 23 is arranged on the first fixing seat 22, and the rotating shaft 23 is in transmission connection with the output end of a first motor 24 arranged on the machine 1; the upper portion of the second bracket 25 is provided with a first pushing cylinder 26, and the first pushing cylinder 26 is rotationally connected with a second fixing seat 27 near the moving end of the first fixing seat 22. By controlling the telescopic operation of the first push cylinder 26, the distance between the second fixing seat 27 and the first fixing seat 22 is adjusted so as to clamp the bottle body between the first fixing seat 22 and the second fixing seat 27. The first fixing seat 22 and the second fixing seat 27 can be provided with seat grooves correspondingly for accommodating the end parts of the bottle bodies, so that better clamping and positioning effects are achieved on the bottle bodies.

Referring to fig. 2-5, the etching protection device 3 includes a first bushing assembly 31 and a second bushing assembly 32 disposed on the left and right sides of the bottle body fixing device 2, and in this embodiment, the first bushing assembly 31 and the second bushing assembly 32 are symmetrical, and for avoiding repetitive description, only the first bushing assembly 31 will be specifically described below. The first bushing assembly 31 includes a first mounting fork 311, a second push cylinder 316, and a third bracket 317, the second push cylinder 316 being disposed on an upper portion of the third bracket 317, the first mounting fork 311 being disposed on the second push cylinder 316 proximate to the movable end of the second bushing assembly 32. The second pushing cylinder 316 is used to push the first mounting fork 311 toward the second mounting fork of the second bushing assembly 32 to effect gripping of the bottle.

Referring to fig. 3 to 4, specifically, two insert rod ends of the first mounting fork 311 are respectively provided with a mounting plate 312, one side of the mounting plate 312, which is close to the second bushing assembly 32, is provided with a circular arc fixing groove 3121, and the circular arc fixing groove 3121 is matched with the outline of the bottle body, so as to realize stable clamping of the bottle body. A first corrosion-resistant die sleeve 313 is movably mounted between the two mounting plates 312 of the first mounting fork 311. The outer wall integrated into one piece of first anticorrosion die sleeve 313 has first arc groove 3132 and second arc groove 3133, and the opening of first arc groove 3132 and second arc groove 3133 upwards, second arc groove 3133 are located first arc groove 3132 below, and second arc groove 3133 tip is equipped with interior protruding knot 3134, is equipped with head rod 314 and second connecting rod 315 between two mounting panels 312, and head rod 314 and second connecting rod 315 wear to locate respectively in first arc groove 3132 and the second arc groove 3133. The first opening is formed in the upper portion of the first anti-corrosion die sleeve 313, the second bushing component 32 is provided with the second anti-corrosion die sleeve 321, the second anti-corrosion die sleeve 321 is used for being matched with the first anti-corrosion die sleeve 313 to clamp a workpiece, and the first opening is matched with the second opening formed in the second anti-corrosion die sleeve 321 after the bottle body is clamped, so that a cofferdam groove 33 is formed in the upper portion of the workpiece. The inner walls of the first anti-corrosion die sleeve 313 and the second anti-corrosion die sleeve 321 around the cofferdam groove 33 are provided with a first channel 3135, the first channel 3135 is connected with a paraffin channel 3136 arranged in the first anti-corrosion die sleeve 313 or the second anti-corrosion die sleeve 321, and the paraffin channel 3136 is connected with a paraffin feeding device 5 arranged on the machine table 1. The inner wall of the first or second anti-corrosion die sleeve 313 or 321 is provided with a plurality of independent grooves 3137, and the walls of the adjacent grooves 3137 are provided with communicated through holes 3138. The top surface of the groove wall of the groove 3137 is provided with a second channel 3139, the second channel 3139 is communicated with a runner 3130 arranged in the groove wall of the groove 3137, and the runner 3130 is connected with a paraffin channel 3136 arranged on the first anti-corrosion die sleeve 313 or the second anti-corrosion die sleeve 321. The groove 3137 at the lower part of the first or second anti-corrosion die sleeve 313 or 321 is connected with the liquid suction device 6 arranged on the machine table 1, and the liquid suction device 6 is connected with the spraying device 4. The shower device 4 is provided above the bank groove 33 and is used for spraying etching liquid into the bank groove 33.

Referring to fig. 1, a machine 1 below a bottle body fixing device 2 is provided with a flushing tank 7, a splash guard 71 is arranged on the periphery of the flushing tank 7, and a flushing device 8 for flushing a workpiece is arranged on one side of the flushing tank 7. In this embodiment, the flushing device 8 includes liquid spraying units with different functions, such as a cooling water spray head, a hot water spray head, an acid scavenger spray head and a deinking agent spray head, and can flush the bottle body or control the temperature of the anti-corrosion die sleeve, so as to improve the etching quality.

Referring to fig. 1, the machine 1 is provided with a motor screw device 9, the motor screw device 9 is provided with a first movable seat 91 and a second movable seat 92, the spraying device 4 is arranged on the first movable seat 91, and the second movable seat 92 is provided with a feeding device 10. The feeding device 10 comprises a lifting cylinder 101, a second motor 102 is arranged at the movable end of the upper part of the lifting cylinder 101, a feeding clamping arm 103 is arranged at the output end of the second motor 102, clamping jaws are arranged at the end part of the feeding clamping arm 103 and comprise two U-shaped clamping plates 105 which are arranged at intervals, and anti-falling rubber 106 is arranged at the inner side end of each U-shaped clamping plate 105. The machine 1 is covered with a transparent protective cover, and the protective cover is provided with a clamping jaw outlet of a feeding clamping arm 103. The arrangement of the protective cover can effectively limit the volatilization and diffusion space of the etching solution, and has better protective effect on operators.

The machine 1 is provided with a control device 200, and the control device 200 is respectively connected with and controls the first motor 24, the first pushing cylinder 26, the second pushing cylinder 316, the spraying device 4, the motor lead screw device 9 and the flushing device 8 to operate. The control device 200 carries out intelligent control on each module in the equipment, so that the operation of the equipment is completely and automatically carried out, the working strength of operators is reduced, and the production stability is improved.

The specific working principle is as follows: the control device 200 controls the motor screw device 9 to operate, and the motor screw device 9 drives the first moving seat 91 and the second moving seat 92 which are provided with the nut component structure to synchronously move along the length direction of the screw. The feeding device 10 with the ink-coated glass bottle 100 clamped on the second moving seat 92 moves from the outlet position of the clamping jaw to the direction of the bottle body fixing device 2, when the ink-coated glass bottle 100 reaches the position above the bottle body fixing device 2, the control device 200 controls the lifting cylinder 101 of the feeding device 10 to descend so that the ink-coated glass bottle 100 reaches between the first fixing seat 22 and the second fixing seat 27 of the bottle body fixing device 2, and at the moment, the control device 200 controls the first pushing cylinder 26 to push the second fixing seat 27 to the ink-coated glass bottle 100 so that the ink-coated glass bottle 100 is clamped and fixed.

At this time, the control device 200 controls the lifting cylinder 101 to rise and the feeding device 10 to reset. The control device 200 controls the second pushing cylinder 316 of the etching protection device 3 and the third pushing cylinder of the second bushing assembly 32 to press the first and second anti-etching die sleeves 313 and 321 against the surface of the inking glass bottle 100, so as to form the cofferdam groove 33. Paraffin is then pumped into the first channel 3135 and the second channel 3139 of the first corrosion protection die sleeve 313 and the second corrosion protection die sleeve 321 by controlling the paraffin feeding device 5, and a sealing paraffin layer is formed after cooling.

Then, the control device 200 controls the shower device 4 to shower the etching liquid into the bank groove 33 for etching. After etching is finished, the control device 200 controls the etching protection device 3 to reset and separate from the inking glass bottle 100, then the control device 200 controls the liquid suction device 6 to suck and recycle most etching liquid in the cofferdam grooves 33 and the grooves 3137 of the first and second anti-corrosion die sleeves 313 and 321 to the spraying device 4, so that the etching liquid can be recycled, and the cost is reduced. Then the control device 200 controls the first motor 24 to drive the first fixing seat 22 to rotate, so that the inked glass bottle 100 rotates and is washed by the washing device 8 to remove etching residual liquid, paraffin and ink, and the surface-engraved glass bottle is obtained.

Since the liquid suction device 6 sucks most of the etching liquid, and rapid flushing is added, the etching liquid flowing out after the detachment of the etching protection device 3 is effectively prevented from corroding the non-etching area. On the other hand, after most of the etching solution is sucked away, the residual etching solution is blocked by paraffin remained on the surfaces of the bottle bodies by the first channel 3135 and the second channel 3139, so that sagging is not easy to occur. Although the liquid suction device 6 is not used for sucking most of etching liquid, the rapid flushing by the flushing device 8 can also achieve a certain degree of avoiding the damage to the bottle body caused by the outflow of the etching liquid, but the use of the liquid suction device 6 can certainly further improve the quality of the product.

The control device 200 controls the feeding device 10 to send out the finished surface-engraved glass bottles from the apparatus and reload the second inked glass bottle 100 to repeat the first etching operation. When the wax feeding device 5 is controlled to pump paraffin into the first channel 3135 and the second channel 3139 of the first corrosion prevention die sleeve 313 and the second corrosion prevention die sleeve 321, the flushing device 8 is started to spray hot water at the same time, and the first corrosion prevention die sleeve 313 and the second corrosion prevention die sleeve 321 are heated, so that paraffin in the first corrosion prevention die sleeve 313 and the second corrosion prevention die sleeve 321 is liquefied again, and smooth flow of paraffin is ensured.

A glass bottle etching process comprising the steps of:

a. At least one layer of corrosion-resistant ink is printed on the glass bottle to be etched by using an silk-screen printing die, an ink protection layer with a hollowed-out pattern is formed, and the ink-coated glass bottle 100 is obtained.

B. The ink-coated glass bottle 100 is placed in glass bottle etching equipment, the hollowed pattern of the ink-coated glass bottle 100 is turned over to the upper part, the ink-coated glass bottle 100 is clamped by the etching protection device 3, an independent cofferdam groove 33 structure is formed around the hollowed pattern, and then a sealing wax layer is arranged around the cofferdam groove 33, so that etching liquid is further prevented from flowing out from a gap of the etching protection device 3. Then, etching is performed by spraying an etching liquid into the bank groove 33 by the spraying device 4, and an etched glass bottle is obtained.

C. most of the etching liquid in the bank groove 33 is sucked away.

D. and cleaning the etched glass bottle, and removing residual etching liquid and an ink protective layer on the surface of the bottle body to obtain the surface-engraved glass bottle.

The above embodiments are not intended to limit the scope of the present application, so: all equivalent changes in structure, shape and principle of the application should be covered in the scope of protection of the application.

Claims (10)

1. A glass bottle etching apparatus, characterized in that: the device comprises a machine table (1), wherein a bottle fixing device (2), an etching protection device (3) and a spraying device (4) are arranged on the machine table (1), the bottle fixing device (2) comprises a first bracket (21) and a second bracket (25) which are oppositely arranged front and back, a first fixing seat (22) is arranged on the upper portion of the first bracket (21), a rotating shaft (23) is arranged on the first fixing seat (22), and the rotating shaft (23) is in transmission connection with the output end of a first motor (24) arranged on the machine table (1); a first pushing cylinder (26) is arranged at the upper part of the second bracket (25), and a second fixing seat (27) is rotationally connected to the first pushing cylinder (26) close to the moving end of the first fixing seat (22); the etching protection device (3) comprises a first lining assembly (31) and a second lining assembly (32) which are arranged on the left side and the right side of the bottle body fixing device (2), the first lining assembly (31) comprises a first installation fork frame (311), a second pushing cylinder (316) and a third bracket (317), the second pushing cylinder (316) is arranged on the upper portion of the third bracket (317), and the first installation fork frame (311) is arranged at the movable end, close to the second lining assembly (32), of the second pushing cylinder (316); the two insert rod ends arranged on the first mounting fork frame (311) are respectively provided with a mounting plate (312), one side, close to the second bushing assembly (32), of each mounting plate (312) is provided with a circular arc-shaped fixing groove (3121), a first anti-corrosion die sleeve (313) is movably arranged between the two mounting plates (312) of the first mounting fork frame (311), a first opening part is arranged on the upper part of each first anti-corrosion die sleeve (313), the second bushing assembly (32) is provided with a second anti-corrosion die sleeve (321), each second anti-corrosion die sleeve (321) is used for being matched with the first anti-corrosion die sleeve (313) to clamp a workpiece, and the first opening part and the second opening part arranged on the second anti-corrosion die sleeve (321) are matched on the upper part of the workpiece to form a cofferdam groove (33); the spraying device (4) is arranged above the cofferdam groove (33) and is used for spraying etching liquid into the cofferdam groove (33).

2. The carafe etching apparatus according to claim 1, wherein: the inner walls of the first corrosion-resistant die sleeve (313) and the second corrosion-resistant die sleeve (321) around the cofferdam groove (33) are provided with a first channel (3135), the first channel (3135) is connected with a paraffin channel (3136) arranged in the first corrosion-resistant die sleeve (313) or the second corrosion-resistant die sleeve (321), and the paraffin channel (3136) is connected with a paraffin feeding device (5) arranged on the machine table (1).

3. The carafe etching apparatus according to claim 2, wherein: the inner wall of the first anti-corrosion die sleeve (313) or the second anti-corrosion die sleeve (321) is provided with a plurality of independent grooves (3137), the groove walls of the adjacent grooves (3137) are provided with communicated through holes (3138), and the cofferdam groove (33) is communicated with the grooves (3137) nearby.

4. A carafe etching apparatus according to claim 3, wherein: the top surface of recess (3137) cell wall is equipped with second channel (3139), and second channel (3139) and runner (3130) that are equipped with in recess (3137) cell wall are linked together, and runner (3130) are connected with paraffin passageway (3136) that first anticorrosion die sleeve (313) or second anticorrosion die sleeve (321) were equipped with.

5. A carafe etching apparatus according to claim 3, wherein: the groove (3137) at the lower part of the first anti-corrosion die sleeve (313) or the second anti-corrosion die sleeve (321) is connected with the liquid suction device (6) arranged on the machine table (1).

6. The carafe etching apparatus according to claim 1, wherein: the first anti-corrosion die sleeve (313) outer wall integrated into one piece has first arc wall (3132) and second arc wall (3133), the opening of first arc wall (3132) and second arc wall (3133) upwards, second arc wall (3133) are located first arc wall (3132) below, second arc wall (3133) tip is equipped with interior protruding knot (3134), be equipped with head rod (314) and second connecting rod (315) between two mounting panel (312), head rod (314) and second connecting rod (315) wear to locate in first arc wall (3132) and second arc wall (3133) respectively.

7. The carafe etching apparatus according to claim 1, wherein: the machine (1) below the bottle fixing device (2) is provided with a flushing tank (7), a splash-proof surrounding baffle (71) is arranged on the periphery of the flushing tank (7), and a flushing device (8) for flushing a workpiece is arranged on one side of the flushing tank (7).

8. The carafe etching apparatus according to claim 1, wherein: the machine table (1) is provided with a motor screw device (9), a first movable seat (91) and a second movable seat (92) are arranged on the motor screw device (9), the spraying device (4) is arranged on the first movable seat (91), and the second movable seat (92) is provided with a feeding device (10).

9. The carafe etching apparatus according to claim 8, wherein: the feeding device (10) comprises a lifting cylinder (101), a second motor (102) is arranged at the movable end of the upper portion of the lifting cylinder (101), a feeding clamping arm (103) is arranged at the output end of the second motor (102), clamping jaws are arranged at the end portions of the feeding clamping arm (103), each clamping jaw comprises two U-shaped clamping plates (105) which are arranged at intervals, and anti-falling rubber (106) is arranged at the inner side end of each U-shaped clamping plate (105).

10. The glass bottle etching process is characterized in that: the method comprises the following steps:

a. Printing at least one layer of corrosion-resistant ink on a glass bottle to be etched by using an silk-screen mould to form an ink protection layer with hollowed-out patterns, thereby obtaining an ink-coated glass bottle (100);

b. Placing an ink-coated glass bottle (100) in the glass bottle etching equipment according to claim 1, turning over the hollowed pattern of the ink-coated glass bottle (100) to the upper part, wrapping the ink-coated glass bottle (100) by an etching protection device (3), forming an independent cofferdam groove (33) structure around the hollowed pattern, and then spraying etching liquid into the cofferdam groove (33) by using a spraying device (4) to etch to obtain an etched glass bottle;

c. and cleaning the etched glass bottle, and removing the etching liquid and the printing ink protective layer to obtain the surface-engraved glass bottle.