Surface treatment device for pla sheet production

Abstract

The utility model relates to the technical field of sheet surface treatment devices, in particular to a surface treatment device for pla sheet production, which comprises a base, L-shaped supports are symmetrically arranged at the top end of the base in a sliding manner, a plurality of rotating rollers are rotatably arranged at the bottom ends of horizontal parts of the L-shaped supports in an array manner, and a U-shaped frame is fixedly arranged at the top end of the base. A pipeline is fixedly arranged on the inner wall of the U-shaped frame, a plurality of atomizing nozzles are fixedly arranged at the bottom end of the pipeline in an array mode, first connecting rods are slidably embedded in the upper portions of the two sides of the U-shaped frame in an array mode, fixing plates are fixedly arranged on the adjacent first connecting rods, and second connecting rods are fixedly arranged on the lower portions of the adjacent sides between the fixing plates. According to the sheet material spraying device, the spraying head in a proper range can be conveniently adjusted according to the size of a sheet material to carry out operation, waste of oil liquid is avoided, and meanwhile redundant oil liquid can be conveniently discharged.

Description

Technical Field

[0001] The utility model relates to a surface treatment device for PLA sheet production, belonging to the technical field of sheet surface treatment devices. Background Technique

[0002] Lactic acid PLA is an environmentally friendly biodegradable material made from renewable plant resources. It has a wide range of applications in many fields, such as household plastic products, industrial plastic parts, plastic films, medical materials, food packaging, agricultural applications, and 3D printing materials. During the production process of PLA sheets, it is necessary to perform an oil coating operation on their surfaces to protect the sheets.

[0003] According to the patent with the publication number CN217796803U, a surface treatment device for PET sheet production is disclosed, including a substrate. An installation opening is provided on the substrate, and a conveying mechanism is installed in the installation opening. On one side of the top of the substrate, a sliding frame is installed. A bidirectional screw is rotatably installed between the inner walls on both sides of the sliding frame. One end of the bidirectional screw is drivingly connected to a positive and negative motor. Threaded sleeves are sleeved at both ends of the bidirectional screw, and connecting plates that form a sliding fit with the top end of the sliding frame are provided. A rolling guiding component is fixed to the bottom end of the connecting plate. The utility model can make the two rolling guiding components move towards the sides of the PET sheet until they fit the two side edges of the PET sheet, making the conveying mechanism drive the PET sheet to move more stably and avoiding deflection of the PET sheet during the conveying process. When the above device applies coating to the sheet, although it can limit and guide sheets of different sizes, it cannot adjust the atomizing nozzles within a suitable range according to the size of the sheet for use, thus possibly resulting in waste of oil. Content of the Utility Model

[0004] The purpose of the utility model is to provide a surface treatment device for PLA sheet production. The utility model can conveniently adjust the nozzles within a suitable range according to the size of the sheet for operation, avoid waste of oil, and at the same time facilitate the discharge of excess oil to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solutions:

[0006] A surface treatment device for producing PLA sheets, including a base, symmetrically sliding L-shaped brackets are provided at the top of the base, and a plurality of rotating rollers are rotatably arranged in an array at the bottom of the horizontal part of the L-shaped brackets. A U-shaped frame is fixedly provided at the top of the base, a pipeline is fixedly provided on the inner wall of the U-shaped frame, and a plurality of atomizing nozzles are fixedly arranged in an array at the bottom of the pipeline. On both upper sides of the U-shaped frame, a first connecting rod is slidably embedded in an array, and fixing plates are fixedly provided on adjacent first connecting rods. On the adjacent lower sides between the fixing plates, a second connecting rod is fixedly provided, and the other ends of the second connecting rods all extend into the pipeline and are fixedly connected with pistons. A pump body and an oil tank are fixedly provided at the top of the U-shaped frame, the input end of the pump body is fixedly connected with the oil tank through a liquid suction pipe, and the output end of the pump body is fixedly connected with the top of the pipeline through a liquid delivery pipe.

[0007] Further, a first chute is opened inside the upper part of the base, a double-headed motor one is fixedly provided on the inner wall of the middle part of the first chute, the output ends of the double-headed motor one are fixedly connected with first screws, and first sliders are threadedly sleeved on the first screws. The top ends of the first sliders are fixedly connected with the bottom ends of the adjacent L-shaped brackets.

[0008] Further, a threaded seat matching the first screw is fixedly embedded through the first sliders, and the two first screws are provided with threads in opposite directions.

[0009] Further, sliding rods are symmetrically and slidably embedded through the first sliders, and both ends of the sliding rods are fixedly connected with the inner walls of the adjacent sides of the first chute.

[0010] Further, a cavity is opened inside the lower part of the base, a plurality of through holes are arrayed and penetrated through the inner wall of the bottom end of the first chute, the bottom ends of the through holes are all communicated with the internal space of the cavity, and a discharge pipe is fixedly provided at the lower part of one side of the base. The discharge pipe is communicated with the internal space of the cavity.

[0011] Further, a second chute is opened inside the U-shaped frame, a double-headed motor two is fixedly provided on the inner wall of the middle part of the second chute, the output ends of the double-headed motor two are fixedly connected with second screws, and second sliders are threadedly sleeved on the second screws. The ends of the first connecting rods far away from the fixing plates all extend into the second chute and are fixedly connected with the adjacent second sliders.

[0012] Further, a threaded seat matching the second screw is fixedly embedded through the second sliders, and the two second screws are provided with threads in opposite directions.

[0013] The beneficial effects of the present utility model are:

[0014] The utility model is provided with a second connecting rod and a piston. During use, the second double-headed motor drives the second screw rod to rotate, so that the second screw rod drives the second slider to move towards or away from each other in the second chute. The second slider will drive the fixed plate to move through the first connecting rod, and the fixed plate can drive the piston to move towards or away from each other through the second connecting rod, so as to adjust the appropriate number of atomizing nozzles for use. By providing through holes and cavities, when the oil liquid enters the first chute, the oil liquid will fall into the cavity through the through holes, and then can be discharged through the discharge pipe. The utility model can conveniently adjust the nozzles within a suitable range according to the size of the sheet material for operation, avoid waste of oil liquid, and facilitate the discharge of excess oil liquid. Description of the Drawings

[0015] The drawings are used to provide a further understanding of the utility model, and constitute a part of the specification. Together with the specific embodiments of the utility model, they are used to explain the utility model, and do not constitute a limitation to the utility model.

[0016] Figure 1 is the front view of a surface treatment device for producing pla sheets of the utility model;

[0017] Figure 2 is the overall structural schematic diagram of a surface treatment device for producing pla sheets of the utility model;

[0018] Figure 3 is the top view of the base of a surface treatment device for producing pla sheets of the utility model;

[0019] Figure 4 is the side view of the pipeline and the piston of a surface treatment device for producing pla sheets of the utility model;

[0020] Reference numerals in the drawings: 1, base; 2, L-shaped bracket; 3, rotating roller; 4, U-shaped frame; 5, pipeline; 6, atomizing nozzle; 7, first connecting rod; 8, fixed plate; 9, second connecting rod; 10, piston; 11, pump body; 12, fuel tank; 13, liquid suction pipe; 14, liquid delivery pipe; 15, first chute; 16, first double-headed motor; 17, first screw rod; 18, first slider; 19, slide bar; 20, cavity; 21, through hole; 22, discharge pipe; 23, second chute; 24, second double-headed motor; 25, second screw rod; 26, second slider. Detailed Embodiment

[0021] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0022] Example 1 Please refer to Figures 1-4 , the present invention provides a technical solution:

[0023] A surface treatment device for producing PLA sheets, including a base 1. Symmetrically sliding L-shaped brackets 2 are provided at the top of the base 1. A plurality of rotating rollers 3 are rotatably arranged in an array at the bottom of the horizontal part of the L-shaped brackets 2. A U-shaped frame 4 is fixedly provided at the top of the base 1. A pipe 5 is fixedly provided on the inner wall of the U-shaped frame 4. A plurality of atomizing nozzles 6 are fixedly arranged in an array at the bottom of the pipe 5. Connecting rods one 7 are slidably embedded in an array on both upper sides of the U-shaped frame 4. Fixed plates 8 are fixedly provided on adjacent connecting rods one 7. Connecting rods two 9 are fixedly provided at the lower part of the adjacent sides between the fixed plates 8. The other ends of the connecting rods two 9 all extend into the pipe 5 and are fixedly connected with pistons 10. A pump body 11 and an oil tank 12 are fixedly provided at the top of the U-shaped frame 4. The input end of the pump body 11 and the oil tank 12 are fixedly connected through a liquid suction pipe 13. The output end of the pump body 11 and the top of the pipe 5 are fixedly connected through a liquid delivery pipe 14.

[0024] Specifically, as Figures 1-4 shown, a chute one 15 is opened in the upper part of the base 1. A double-headed motor one 16 is fixedly provided on the inner wall of the middle part of the chute one 15. The output ends of the double-headed motor one 16 are fixedly connected with screw rods one 17. Slide blocks one 18 are threadedly sleeved on the screw rods one 17. The tops of the slide blocks one 18 are fixedly connected with the bottoms of the adjacent L-shaped brackets 2. Threaded seats matching the screw rods one 17 are fixedly embedded through the slide blocks one 18. Opposite threads are provided on the two screw rods one 17. By driving the screw rods one 17 to rotate through the double-headed motor one 16, the screw rods one 17 will drive the slide blocks one 18 to move towards each other or away from each other in the chute one 15. At this time, the slide blocks one 18 will drive the L-shaped brackets 2 to move towards each other or away from each other, so as to adjust the distance between the two rotating rollers 3.

[0025] Specifically, as Figures 1-4As shown, a cavity 20 is formed inside the lower part of the base 1. A plurality of through holes 21 are arrayed and penetrated through the inner wall at the bottom end of the first chute 15. The bottom ends of the through holes 21 communicate with the inner space of the cavity 20. A discharge pipe 22 is fixedly provided at the lower part of one side of the base 1. The discharge pipe 22 communicates with the inner space of the cavity 20. When the oil liquid enters the first chute 15, at this time the oil liquid will fall into the cavity 20 through the through holes 21, and then can be discharged through the discharge pipe 22.

[0026] Specifically, as Figures 1-4 shown, a second chute 23 is formed inside the U-shaped frame 4. A double-headed motor two 24 is fixedly provided on the inner wall in the middle of the second chute 23. Output ends of the double-headed motor two 24 are fixedly connected with screw rods two 25 respectively. Slide blocks two 26 are threadedly sleeved on the screw rods two 25 respectively. One ends of the connecting rods one 7 far away from the fixed plate 8 extend into the second chute 23 and are fixedly connected with the adjacent slide blocks two 26 respectively. Threaded seats matching with the screw rods two 25 are fixedly embedded through the slide blocks two 26. Opposite threads are provided on the two screw rods two 25. By driving the screw rods two 25 to rotate through the double-headed motor two 24, the screw rods two 25 drive the slide blocks two 26 to move towards each other or away from each other in the second chute 23. The slide blocks two 26 drive the fixed plate 8 to move through the connecting rods one 7. The fixed plate 8 drives the piston 10 to move towards each other or away from each other through the connecting rods two 9, so as to adjust the appropriate number of atomizing nozzles 6 for use.

[0027] Embodiment 2 Please refer to Figures 1-4 , the difference between this embodiment and Embodiment 1 is that: slide rods 19 are symmetrically penetrated and slidably embedded on the slide block one 18. Both ends of the slide rods 19 are fixedly connected with the inner walls on the adjacent sides of the first chute 15. When the slide block one 18 moves, at this time the slide rods 19 can play a supporting role for the slide block one 18.

[0028] Working principle of the utility model: When in use, the double-headed motor 1 drives the screw rod 17 to rotate. The screw rod 17 drives the slider 18 to move towards or away from each other in the chute 15. At this time, the slider 18 drives the L-shaped bracket 2 to move towards or away from each other, so as to adjust the distance between the two rotating rollers 3 on both sides. The two sides of the sheet material can be limited by the rotating rollers 3. When the slider 18 moves, the slide bar 19 can support the slider 18 at this time. The double-headed motor 2 drives the screw rod 25 to rotate, so that the screw rod 25 drives the slider 26 to move towards or away from each other in the chute 23. The slider 26 drives the fixed plate 8 to move through the connecting rod 1 7. The fixed plate 8 drives the piston 10 to move towards or away from each other through the connecting rod 2 9, so as to adjust the appropriate number of atomizing nozzles 6 for use. When the sheet material moves below the atomizing nozzles 6, the pump body 11 can pump the oil liquid into the pipeline 5 and spray it downward through the atomizing nozzles 6 at this time, so as to perform an oiling operation on the sheet material.

[0029] Although the embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A surface treatment device for PLA sheet production, including a base (1), characterized in that: The top of the base (1) is symmetrically and slidably provided with L-shaped brackets (2). At the bottom ends of the horizontal parts of the L-shaped brackets (2), a plurality of rotating rollers (3) are rotatably arranged in an array. The top of the base (1) is fixedly provided with a U-shaped frame (4). On the inner wall of the U-shaped frame (4), a pipeline (5) is fixedly provided. At the bottom end of the pipeline (5), a plurality of atomizing nozzles (6) are fixedly arranged in an array. On the upper parts of both sides of the U-shaped frame (4), a plurality of connecting rods one (7) are slidably embedded in an array. On adjacent connecting rods one (7), fixing plates (8) are fixedly provided. On the lower parts of the adjacent sides between the fixing plates (8), connecting rods two (9) are fixedly provided. The other ends of the connecting rods two (9) all extend into the pipeline (5) and are fixedly connected with pistons (10). The top of the U-shaped frame (4) is fixedly provided with a pump body (11) and an oil tank (12). Between the input end of the pump body (11) and the oil tank (12), they are fixedly connected through a liquid suction pipe (13). Between the output end of the pump body (11) and the top end of the pipeline (5), they are fixedly connected through a liquid delivery pipe (14).

2. The surface treatment device for producing PLA sheets according to claim 1, characterized in that: A chute one (15) is opened inside the upper part of the base (1). On the middle inner wall of the chute one (15), a double-headed motor one (16) is fixedly provided. The output ends of the double-headed motor one (16) are all fixedly connected with screw rods one (17). On the screw rods one (17), slider ones (18) are threadedly sleeved. The top ends of the slider ones (18) are all fixedly connected with the bottom ends of the adjacent L-shaped brackets (2).

3. A surface treatment device for producing PLA sheets according to claim 2, characterized in that: Threaded seats matching the screw rods one (17) are fixedly embedded through the slider ones (18). The two screw rods one (17) are provided with threads in opposite directions.

4. A surface treatment device for producing PLA sheets according to claim 3, characterized in that: Slide rods (19) are symmetrically and slidably embedded through the slider ones (18). Both ends of the slide rods (19) are fixedly connected with the adjacent inner walls of the chute one (15).

5. The surface treatment device for producing PLA sheets according to claim 4, wherein: A cavity (20) is opened inside the lower part of the base (1). A plurality of through holes (21) are arrayed and penetrated through the bottom inner wall of the chute one (15). The bottom ends of the through holes (21) are all communicated with the internal space of the cavity (20). At the lower part of one side of the base (1), a discharge pipe (22) is fixedly provided. The discharge pipe (22) is communicated with the internal space of the cavity (20).

6. The surface treatment device for producing PLA sheets according to claim 1, characterized in that: A chute two (23) is opened inside the U-shaped frame (4). On the middle inner wall of the chute two (23), a double-headed motor two (24) is fixedly provided. The output ends of the double-headed motor two (24) are all fixedly connected with screw rods two (25). On the screw rods two (25), slider two (26) are threadedly sleeved. The ends of the connecting rods one (7) far away from the fixing plates (8) all extend into the chute two (23) and are fixedly connected with the adjacent slider two (26).

7. The surface treatment device for PLA sheet production according to claim 6, characterized in that: Threaded seats matching the screw rods two (25) are fixedly embedded through the slider two (26). The two screw rods two (25) are provided with threads in opposite directions.

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