Plastic bottle surface automatic spraying device

Abstract

The utility model relates to the technical field of spraying devices, and discloses a plastic bottle surface automatic spraying device which comprises a spraying box, a spraying machine, a collecting tank and a reciprocating screw rod sliding table, and supports are installed at the top of the reciprocating screw rod sliding table at equal intervals. The cosmetic plastic bottle is sleeved on the top of the pressing rod in the support, the pressing rod is pressed by the bottom of the plastic bottle and moves downwards, so that the annular block extrudes the compression spring below the annular block to be compressed, and the wedge-shaped block on the circumference of the bottom of the pressing rod can outwards abut against the inclined surface of the inner side of the abutting plate, so that the abutting plate breaks through the elastic force of the corresponding torque hinge at the bottom; and thus, the plastic bottles with different sizes can be stably positioned on the bracket, and the problems that the gaps between openings of the plastic bottles with different sizes and the bracket are different, the plastic bottles cannot be uniformly fixed, the shaking amplitude between the plastic bottles and the bracket is large, and even the plastic bottles fall off are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of spraying devices, in particular to an automatic spraying device for the surface of a plastic bottle. Background Art

[0002] Cosmetic packaging bottles are containers for storing cosmetics. In order to attract consumers' attention, cosmetic packaging bottles are sprayed with bright colors. The outside of the cosmetic plastic bottle can be sprayed by an automatic spraying device.

[0003] For example, the Chinese patent authorization announcement number CN207756349U discloses a point-spraying device for cosmetic packaging bottles, which includes a spray box (1) and an automatic transmission line (2). The automatic transmission line (2) is laid through the spray box (1). A row of bottle body support rods (4) for mounting packaging bottles (3) are provided on the automatic transmission line (2). A detection sensor (5) and a spray gun (6) for detecting packaging bottles (3) and triggering spraying are provided next to the automatic transmission line (2). When the detection sensor (5) detects the packaging bottle (3), the spray gun (6) is aligned with a bottle body support rod (4) of the automatic transmission line (2).

[0004] The point-spraying device in the above-mentioned comparative document can greatly save raw materials, improve work efficiency and increase production capacity;

[0005] However, when the above-mentioned cosmetic plastic bottles are sprayed and colored through the spray device, after the plastic bottle mouth is placed on the top of the pillar with the mouth facing downward, the stability of the sleeve on the pillar is poor due to the different gaps between the mouths of plastic bottles of different sizes and the pillar. When the reciprocating screw slide moves back and forth, the nozzle sprays the paint on the bottle body with a certain pressure, and it is easy for the nozzle to shake greatly with the pillar and even fall off. Since the plastic bottle buckle fits the bottom of the bracket, after the plastic bottle is sprayed and colored, it is easy to come into contact with the undried colorant at the bottom when taking and placing the plastic bottle, which makes it inconvenient to take and place the plastic bottle after spraying. Utility Model Content

[0006] The purpose of the utility model is to provide an automatic spraying device for the surface of plastic bottles, which can quickly position the mouths of cosmetic plastic bottles of different sizes, prevent the plastic bottles from being separated from the pillars when spraying, and facilitate the removal and placement of plastic bottles from pillars with equal and small intervals.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an automatic spraying device for the surface of a plastic bottle, comprising a spray box, a sprayer, a collecting trough, and a reciprocating screw slide. A bracket is installed at equal intervals on the top of the reciprocating screw slide, and the bracket includes a pillar fixed on the slider of the reciprocating screw slide. A slide is fixedly installed on the top of the pillar, and a pressure rod is movably inserted inside the slide. Open grooves are opened at equal intervals on the outer circumference of the slide, and a back plate is movably installed on the bottom of the inner wall of the open groove through a torque hinge. Wedge blocks are fixedly installed at equal intervals on the circumference of the bottom of the pressure rod, and an electric push rod is fixedly installed on the pillar near the slide, and the telescopic end of the electric push rod is fixedly connected to a slide.

[0008] Preferably, partition doors are hingedly installed on both sides of the front of the spray box, and side nozzles and top nozzles are installed on both sides of the collecting trough and the top of the inner cavity of the spray box. The sprayer can spray colorant on the cosmetic plastic bottle on the top of the bracket through the side nozzles and top nozzles.

[0009] Preferably, a clamp is integrally formed at the top end of the abutment plate, and the inner side surface of the abutment plate is a sloped structure.

[0010] Preferably, a compression spring is fixedly installed at the bottom of the inner cavity of the slide, and an annular block is fixedly installed at the bottom of the pressure rod.

[0011] Preferably, the top end of the compression spring is fixedly connected to the bottom end of the annular block.

[0012] Preferably, the annular block slides in the inner cavity of the slide, and multiple groups of the wedge blocks correspond one-to-one to multiple groups of the abutment plates.

[0013] Preferably, one side of the wedge block contacts the corresponding inner side surface of the abutment plate.

[0014] Preferably, the slide plate is slidably sleeved outside the slide frame.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] The plastic cosmetic bottle of the utility model is mounted on the top of the pressure rod in the bracket. The pressure rod is resisted by the bottom of the plastic bottle and moves downward, so that the annular block squeezes the compression spring below and is compressed. The wedge-shaped block on the circumference of the bottom of the pressure rod can resist outward against the inner inclined surface of the abutment plate, so that the abutment plate breaks through the torque hinge elastic force corresponding to the bottom, so that the abutment plate can flip the top clamp outward and resist and position against the inner wall of the plastic bottle. In this way, plastic bottles of different sizes are stably positioned on the bracket, avoiding the problem that the gaps between the mouths of plastic bottles of different sizes and the bracket are different, the fixing cannot be unified, and the problem of large shaking between the bracket and even falling off is avoided.

[0017] After the cosmetic plastic bottles on the top of the bracket in the utility model are sprayed and dried, the telescopic end of the electric push rod can drive the slide plate to slide on the slide, so that the multiple groups of abutment plates are flipped inward and reset, thereby pushing up the corresponding wedge-shaped blocks on the inner sides, so that the pressure rod can drive the plastic bottles on the top to move upward, so that the plastic bottles can move upward from the brackets with equal and smaller intervals, avoiding the plastic bottle mouths and the bottom bracket being too close, which makes it easy for undried colorants to adhere when taking and placing. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the collecting trough structure in the utility model;

[0020] Figure 3 This is a schematic diagram of the support structure in the utility model;

[0021] Figure 4 for Figure 3 Schematic diagram of the locally enlarged structure at point A in the middle.

[0022] In the figure: 1. Spray box; 2. Sprayer; 3. Collecting tank; 4. Reciprocating screw slide; 5. Bracket; 6. Electric push rod; 7. Abutment plate; 8. Compression spring; 11. Partition door; 21. Side nozzle; 22. Top nozzle; 51. Support; 52. Slide; 53. Pressure rod; 520. Opening slot; 530. Ring block; 531. Wedge block; 61. Slide plate; 71. Chuck. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0024] See also Figure 1-4 The utility model provides a technical solution: an automatic spraying device for the surface of a plastic bottle, comprising a spray box 1, a sprayer 2, a collecting tank 3, a reciprocating screw slide 4, and brackets 5 are installed at equal intervals on the top of the reciprocating screw slide 4;

[0025] The bracket 5 includes a pillar 51 fixed to the slider of the reciprocating screw slide 4, a slide 52 is fixedly mounted on the top of the pillar 51, a pressure rod 53 is movably inserted into the slide 52, open slots 520 are evenly spaced on the outer circumference of the slide 52, and a stop plate 7 is movably mounted on the bottom of the inner wall of the open slot 520 via a torque hinge. Wedge blocks 531 are fixedly mounted on the bottom circumference of the pressure rod 53 at even intervals. An electric push rod 6 is fixedly mounted on the pillar 51 near the slide 52, and a slide plate 61 is fixedly connected to the telescopic end of the electric push rod 6.

[0026] The cosmetic plastic bottle is mounted on the top of the pressure rod 53 in the bracket 5. The pressure rod 53 is resisted by the bottom of the plastic bottle and moves downward, so that the annular block 530 squeezes the compression spring 8 below and compresses the wedge-shaped block 531 on the bottom circumference of the pressure rod 53 can resist the inner inclined surface of the support plate 7 outward, so that the support plate 7 breaks through the torque hinge elastic force corresponding to the bottom, so that the support plate 7 can flip the top clamp 71 outward and resist and position it against the inner wall of the plastic bottle. In this way, plastic bottles of different sizes are stably positioned on the bracket 5, avoiding the problem that the gaps between the mouths of plastic bottles of different sizes and the bracket 5 are different, and it is impossible to fix them uniformly, which is easy to cause a large shaking amplitude between the bracket 5 and even fall off.

[0027] After the cosmetic plastic bottles on the top of the bracket 5 are sprayed and dried, the telescopic end of the electric push rod 6 can drive the slide 61 to slide on the slide 52, so that the multiple groups of abutment plates 7 are flipped inward and reset, so that the corresponding wedge blocks 531 on the inner side can be pushed upward, so that the pressure rod 53 can drive the plastic bottles on the top to move upward, so that the plastic bottles can move upward from the brackets 5 with smaller equal intervals, avoiding the plastic bottle mouth and the bottom bracket being too close, which is easy to adhere to the undried colorant when taking and placing.

[0028] Among them, partition doors 11 are hingedly installed on both sides of the front of the spray box 1, and side nozzles 21 and top nozzles 22 are respectively installed on both sides of the collecting tank 3 and the top of the inner cavity of the spray box 1. The sprayer 2 can spray colorant on the cosmetic plastic bottles on the top of the bracket 5 through the side nozzles 21 and the top nozzles 22. The cosmetic plastic bottles are mounted on the bracket 5 with the bottle mouths facing down. The reciprocating screw slide 4 can drive the plastic bottles on the bracket 5 to slide back and forth in the spray box 1, so that the sprayer 2 can spray and color the outside of the cosmetic plastic bottles arranged at equal intervals through the side nozzles 21 and the top nozzles 22.

[0029] The top of the pressure spring 8 is fixedly installed on the bottom of the inner cavity of the slide 52, and the ring block 530 is fixedly installed on the bottom of the pressure rod 53. The top of the pressure spring 8 is fixedly connected to the bottom of the ring block 530, and the ring block 530 slides in the inner cavity of the slide 52. The multiple groups of wedge blocks 531 correspond to the multiple groups of pressure plates 7 one by one. One side of the wedge block 531 conflicts with the corresponding inner side surface of the pressure plate 7. The cosmetic plastic bottle is mounted on the top of the pressure rod 53 in the bracket 5, so that the ring block 530 squeezes the pressure spring 8 below and is compressed. The wedge block 531 on the circumference of the bottom of the pressure rod 53 can conflict outward with the inner inclined surface of the pressure plate 7, so that the pressure plate 7 breaks through the torque hinge elastic force corresponding to the bottom, so that the pressure plate 7 can flip the top clamp 71 outward and conflict and position against the inner wall of the plastic bottle, thus achieving stable positioning of plastic bottles of different sizes on the bracket 5.

[0030] Among them, the slide plate 61 is slidably sleeved on the outside of the slide 52. After the cosmetic plastic bottles on the top of the bracket 5 are sprayed and dried, the telescopic end of the electric push rod 6 can drive the slide plate 61 to slide on the slide 52, so that the multiple groups of abutment plates 7 are flipped inward and reset, so that the pressure rod 53 can drive the plastic bottles on the top to move upward, so that the plastic bottles can move upward from the brackets 5 with smaller equal intervals, avoiding the distance between the plastic bottle mouth and the bottom bracket being too close, which is easy to cause the undried colorant to adhere when taking and placing.

[0031] Working principle: When in use, the cosmetic plastic bottle is inserted into the top of the pressure rod 53 in the bracket 5. The pressure rod 53 is resisted by the bottom of the plastic bottle and moves downward, so that the annular block 530 squeezes the compression spring 8 below and compresses it. The wedge-shaped block 531 on the bottom circumference of the pressure rod 53 can resist the inner inclined surface of the support plate 7 outward, so that the support plate 7 breaks through the torque hinge elastic force corresponding to the bottom, so that the support plate 7 can flip the top clamp 71 outward and resist the inner wall of the plastic bottle to position it. In this way, plastic bottles of different sizes can be stably positioned on the bracket 5.

[0032] Then, the reciprocating screw slide 4 can drive the plastic bottles on the bracket 5 to slide back and forth in the spray box 1, so that the sprayer 2 can spray and color the exterior of the cosmetic plastic bottles arranged at equal intervals through the side spray heads 21 and the top spray heads 22;

[0033] Finally, after the cosmetic plastic bottles on the top of the bracket 5 are sprayed and dried or dried, the telescopic end of the electric push rod 6 can drive the slide 61 to slide on the slide 52, so that the multiple groups of abutment plates 7 are flipped inward and reset, so that the corresponding wedge blocks 531 on the inner side can be pushed upward, so that the pressure rod 53 can drive the plastic bottles on the top to move upward, so that the plastic bottles can move upward from the brackets 5 with smaller equal intervals, avoiding the plastic bottle mouth and the bottom bracket being too close, which is easy to adhere to the undried colorant when taking and placing.

[0034] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes and modifications may be made to these embodiments without departing from the principles of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automatic spraying device for the surface of a plastic bottle, comprising a spraying box (1), a sprayer (2), a collecting trough (3), and a reciprocating screw slide (4), characterized in that: A bracket (5) is installed at equal intervals on the top of the reciprocating screw slide (4), and the bracket (5) includes a pillar (51) fixed on the slider of the reciprocating screw slide (4), a slide (52) is fixedly installed on the top of the pillar (51), a pressure rod (53) is movably inserted inside the slide (52), and open grooves (520) are opened at equal intervals on the outer circumference of the slide (52), and a support plate (7) is movably installed on the bottom of the inner wall of the open groove (520) through a torque hinge, and wedge blocks (531) are fixedly installed at equal intervals on the bottom circumference of the pressure rod (53), and an electric push rod (6) is fixedly installed near the slide (52) on the pillar (51), and the telescopic end of the electric push rod (6) is fixedly connected to a slide plate (61).

2. The automatic spraying device for the surface of a plastic bottle according to claim 1, characterized in that: Partition doors (11) are hingedly installed on both sides of the front of the spray box (1), and side spray heads (21) and top spray heads (22) are installed on both sides of the collecting tank (3) and the top of the inner cavity of the spray box (1). The sprayer (2) can spray colorant on the cosmetic plastic bottle on the top of the bracket (5) through the side spray heads (21) and the top spray heads (22).

3. The automatic spraying device for the surface of a plastic bottle according to claim 2, characterized in that: The top end of the abutment plate (7) is integrally formed with a clamping head (71), and the inner side surface of the abutment plate (7) is a sloped structure.

4. The automatic spraying device for the surface of a plastic bottle according to claim 3, characterized in that: A compression spring (8) is fixedly installed at the bottom of the inner cavity of the slide (52), and an annular block (530) is fixedly installed at the bottom of the pressure rod (53).

5. The automatic spraying device for the surface of a plastic bottle according to claim 4, characterized in that: The top end of the compression spring (8) is fixedly connected to the bottom end of the annular block (530).

6. The automatic spraying device for the surface of a plastic bottle according to claim 5, characterized in that: The annular block (530) slides in the inner cavity of the slide (52), and the multiple groups of wedge blocks (531) correspond to the multiple groups of abutment plates (7) one by one.

7. The automatic spraying device for the surface of a plastic bottle according to claim 6, characterized in that: One side of the wedge block (531) contacts the inner side surface of the corresponding abutment plate (7).

8. The automatic spraying device for the surface of a plastic bottle according to claim 7, characterized in that: The slide plate (61) is slidably sleeved on the outside of the slide frame (52).

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