Automatic labeling device for sandwich conveying belt

Abstract

The utility model relates to the technical field of food production equipment, in particular to an automatic labeling device for a sandwich conveying belt, which comprises a conveying belt component, the pushing part is mounted on the conveying belt part and is used for transversely pushing the sandwich; the movable limiting component is mounted on the supporting frame and is opposite to the pushing component; the folding limiting component is installed on the supporting frame, and the limiting end of the folding limiting component is located on the front side of the moving limiting component; the right side folding part is mounted on the supporting frame, located on the right side of the folding limiting part and used for folding the right side wing edge of the packaging bag; the left side folding part is mounted on the supporting frame, located on the left side of the folding limiting part and used for folding the left side wing edge of the packaging bag; and the label pasting part is installed on the supporting frame and used for pasting labels to the folded packaging bags. According to the utility model, the sandwich packaging bag is automatically labeled after being folded according to installation requirements.

Description

Technical Field

[0001] The utility model relates to the technical field of food production equipment, in particular to an automatic labeling device for a sandwich conveyor belt. Background Art

[0002] A sandwich is a very popular fast food consisting of two slices of bread with various ingredients such as meat, cheese, vegetables and condiments.

[0003] The folding and labeling of sandwich bags are important links in the processing and packaging of sandwiches. They not only protect the sandwiches from contamination, but also provide necessary information to consumers, such as production date, shelf life, ingredients, nutritional information, etc. After the sandwich is sealed in the bag, the operator can fold the bag into the required shape and then fix it with a label, which is conducive to the subsequent storage and transportation of the sandwich. However, the folding and labeling of sandwich bags are mainly done manually, which has low operating efficiency and is not conducive to large-scale production.

[0004] Therefore, those skilled in the art are committed to developing an automatic labeling device for sandwich conveyor belts, which automatically affixes labels to sandwich packaging bags after they are folded to improve sandwich production efficiency. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide an automatic labeling device for a sandwich conveyor belt, which can automatically stick labels on sandwich packaging bags after they are folded as required, thereby improving the production efficiency of sandwiches.

[0006] The technical solution of the utility model to solve the above technical problems is as follows:

[0007] An automatic labeling device for a sandwich conveyor belt, comprising:

[0008] A conveyor belt component, wherein the conveyor belt component is mounted on a bracket, a power component for driving the conveyor belt to move is mounted on the conveyor belt component, and a limiting component for limiting the position of the sandwich is mounted on the conveyor belt;

[0009] A pushing component, the pushing component is installed on the conveyor belt component and is used for laterally pushing the sandwich;

[0010] A movable limiting component, which is mounted on the support frame and faces the pushing component;

[0011] A folding limiting component, wherein the folding limiting component is mounted on the supporting frame, and a limiting end of the folding limiting component is located at the front side of the moving limiting component;

[0012] A right folding component, which is mounted on the support frame and is located on the right side of the folding limiting component and is used for folding the right wing edge of the packaging bag;

[0013] A left folding component, which is mounted on the support frame and is located on the left side of the folding limiting component and is used for folding the left wing edge of the packaging bag;

[0014] A label sticking component is installed on the supporting frame and is used for sticking a label to the folded packaging bag.

[0015] The beneficial effect of adopting the above scheme is that after the packaged sandwich is conveyed to the specified position on the conveyor belt component, the pushing component pushes the sandwich horizontally, and at the same time, the moving end of the moving limiting component and the moving end of the folding limiting component are extended to limit the sandwich, and the right folding component and the left folding component respectively fold the right wing edge and the left wing edge to form a triangular package, and then the label pasting component pastes the label at the folded position, thereby reducing manual operation and improving the sandwich production efficiency.

[0016] On the basis of the above technical solution, the present invention can also be improved as follows.

[0017] Further, the pushing component includes a pushing cylinder, the pushing cylinder is installed on the conveyor belt component, and a pushing plate that fits the surface of the sandwich is installed at the output end of the pushing cylinder;

[0018] Two blowing components are installed on the support frame, and the blowing rods on the two blowing components are respectively directed toward the two sides of the movable limiting component to blow and fold the wing edges on both sides of the packaging bag;

[0019] The side wall of the conveyor belt is also equipped with an anti-restoration guide plate to prevent the wing edge of the packaging bag from restoring. The anti-restoration guide plate is provided with a notch for pasting labels at the label pasting component. A brush component is also provided on the conveyor belt near the end of the conveyor belt.

[0020] The beneficial effect of adopting the above further scheme is: after the pushing cylinder pushes the sandwich horizontally to the specified position, the compressed air sprayed by the blowing rod will fold one side of the two sides of the packaging bag, which is conducive to the subsequent folding of the left folding part and the right folding part. During the sandwich transportation process, the anti-recovery guide plate prevents the folded wing edge from being reset, which is not conducive to the subsequent labeling. The brush component is used to transfer the sandwich with a label to other production stations.

[0021] Furthermore, the movable limiting component includes a limiting cylinder, the limiting cylinder is installed on the supporting frame and the output end of the limiting cylinder is connected to a limiting plate via a connecting piece, and the limiting plate is directly opposite to the pushing plate on the pushing component.

[0022] The beneficial effect of adopting the above further solution is that the limiting cylinder and the pushing cylinder cooperate to limit the sandwich within a suitable range, which is beneficial for the subsequent folding components to fold the packaging bag.

[0023] Furthermore, the folding limit component includes a folding limit cylinder, which is installed on the support frame. The folding limit cylinder is vertically installed and the output end of the folding limit cylinder faces the conveyor belt. The output end of the folding limit cylinder is equipped with a right folding sheet and a left folding sheet respectively cooperating with the right folding component and the left folding component. The right folding sheet and the left folding sheet are respectively used for guiding when the wing edges of the packaging bag are folded.

[0024] The beneficial effect of adopting the above further solution is that the right folding piece and the left folding piece are used for guiding and limiting, which is beneficial for the subsequent left folding component and the right folding component to fold the wing edge of the sandwich packaging bag.

[0025] Furthermore, the right folding component includes a right folding cylinder, which is installed on the support frame and parallel to the length direction of the conveyor belt. A right folding plate is installed at the output end of the right folding cylinder, and the end of the right folding plate is inclined away from the conveyor belt.

[0026] The beneficial effect of adopting the above further solution is that the right folding cylinder extends to drive the right folding plate to move, and the end of the right folding plate is inclined, which is conducive to folding the right wing edge.

[0027] Further, the left folding component comprises a left folding rotary cylinder, the left folding rotary cylinder is mounted on the support frame, and a left rotary folding plate is mounted on the output end of the left folding rotary cylinder;

[0028] When the packaging bag is folded, the right folding plate and the left rotating folding plate are respectively located at both sides of the limiting end of the folding limiting component to fold the packaging bag into a triangle.

[0029] The beneficial effect of adopting the above further solution is that the rotation of the left rotating cylinder drives the left folding plate to rotate, thereby folding the left wing edge of the sandwich.

[0030] Furthermore, the label pasting component includes a label placing component for placing the label tape, and a guide component, a clamping component and a traction component are sequentially arranged along the moving direction of the label tape. The side wall of the clamping component is provided with a cutting component for cutting the label tape, and the side wall of the cutting component is also provided with a pasting component for pasting the cut label on the sandwich.

[0031] The beneficial effect of adopting the above further solution is that the traction component clamps and pulls out the label tape, and after the cutting component cuts the label tape, the pasting component pastes the cut label on the folded part, while preventing the folded part from loosening.

[0032] Further, the clamping assembly includes a clamping block and a clamping cylinder, the clamping block is mounted on the support frame, the output end of the clamping cylinder is directly opposite to the clamping block, and the clamping block and the clamping cylinder cooperate to clamp the label tape;

[0033] The cutting assembly comprises cutting scissors and a cutting cylinder. The output end of the cutting cylinder is connected to the cutting scissors, and the cutting scissors are used to cut off the label tape.

[0034] The beneficial effect of adopting the above further solution is that after the clamping block and the clamping cylinder clamp the label tape, it is convenient for the cutting scissors to cut it, thereby improving the label pasting efficiency.

[0035] Further, the traction assembly includes a pneumatic finger, a guide assembly and a traction cylinder, the output end of the traction cylinder is connected to the pneumatic finger, and the output end of the pneumatic finger is used to clamp the end of the label belt;

[0036] The guide assembly includes a guide slider and a guide rail matched with the guide slider, the guide slider is connected to the pneumatic finger, and the guide rail is installed on the support frame.

[0037] The beneficial effect of adopting the above further solution is that after the pneumatic finger clamps the end of the label tape, the traction cylinder moves to drive the pneumatic finger to move so as to pull out the label tape, which is convenient for the next step of cutting and pasting.

[0038] Furthermore, the pasting assembly includes a first pasting cylinder, a second pasting cylinder and a pasting block, the output end of the first pasting cylinder is connected to the second pasting cylinder, the output end of the second pasting cylinder is connected to the pasting block through a telescopic rod, a vacuum adsorption assembly is installed on the pasting block, the outer sleeve of the telescopic rod is provided with a pasting spring, the two ends of the pasting spring are respectively abutted against the pasting block and the output end of the second pasting cylinder, the pasting block is connected to a connecting piece, the other end of the connecting piece has a sliding groove, a sliding column is provided in the sliding groove, and the sliding column is connected to the second pasting cylinder.

[0039] The beneficial effect of adopting the above further solution is that the first pasting cylinder and the second pasting cylinder move to paste the cut label on the folded part of the sandwich packaging bag, thereby improving the label pasting efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1 This is a structural schematic diagram of a sandwich conveyor belt automatic labeling device according to a specific embodiment of the utility model;

[0041] Figure 2 This is a schematic diagram of the structure of an automatic labeling device according to a specific embodiment of the utility model;

[0042] Figure 3This is a schematic diagram of the structure of a folding component and a movable limiting component in a specific embodiment of the utility model;

[0043] Figure 4 This is a schematic diagram of the folding component structure of a specific embodiment of the utility model;

[0044] Figure 5 This is a schematic diagram of the structure of a label pasting component in a specific embodiment of the utility model;

[0045] Figure 6 It is a schematic structural diagram of a blowing component and an anti-recovery guide plate according to a specific embodiment of the utility model.

[0046] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0047] 1. Conveyor belt component; 2. Bracket; 3. Conveyor belt; 4. Power component; 5. Limit component; 6. Push component; 7. Move limit component; 8. Folding limit component; 9. Right folding component; 10. Left folding component; 11. Label pasting component; 12. Support frame; 13. Push cylinder; 14. Limit cylinder; 15. Folding limit cylinder; 16. Right folding sheet; 17. Left folding sheet; 18. Right folding cylinder; 19. Right folding plate; 20. Left Folding and rotating cylinder; 21. Label placing component; 22. Guide component; 23. Clamping cylinder; 24. Clamping block; 25. Cutting cylinder; 26. Cutting scissors; 27. Pneumatic fingers; 28. Traction cylinder; 29. ​​First pasting cylinder; 30. Second pasting cylinder; 31. Pasting spring; 32. Pasting block; 33. Connecting piece; 34. Sliding groove; 35. Blowing component; 36. Anti-recovery guide plate; 37. Notch; 38. Brush component; 39. Left rotating folding plate. DETAILED DESCRIPTION

[0048] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0049] In the description of the present invention, it should be understood that the terms "center", "length", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "inside", "outside", "peripheral", "circumferential" and the like indicating orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred system or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0050] In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0051] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0052] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, a sandwich conveyor belt automatic labeling device includes:

[0053] A conveyor belt component 1 is installed on a bracket 2, a height adjusting piece is installed at the bottom of the bracket 2, a power component 4 for driving the conveyor belt 3 to move is installed on the conveyor belt component 1, the power component 4 can adopt a servo motor assembly, a synchronous belt and a synchronous wheel assembly, and a limiting component 5 for limiting the sandwich is installed on the conveyor belt 3, the limiting component 5 can adopt two symmetrically arranged limiting plates, and the distance between the two limiting plates is slightly larger than the width of the sandwich.

[0054] A pushing component 6, which is mounted on the conveyor belt component 1 and is used for laterally pushing the sandwich;

[0055] A movable limiting component 7, wherein the movable limiting component 7 is mounted on the supporting frame 12 and is directly opposite to the pushing component 6;

[0056] A folding limiting component 8, wherein the folding limiting component 8 is mounted on the supporting frame 12, and a limiting end of the folding limiting component 8 is located at the front side of the moving limiting component 7;

[0057] A right folding component 9, which is mounted on the support frame 12 and is located on the right side of the folding limiting component 8 and is used for folding the right wing edge of the packaging bag;

[0058] A left folding component 10, which is mounted on the support frame 12 and is located on the left side of the folding limiting component 8 and is used for folding the left wing edge of the packaging bag;

[0059] The label sticking component 11 is installed on the support frame 12 and is used to stick a label to the folded packaging bag.

[0060] In the utility model, after the packaged sandwich is conveyed to the designated position on the conveyor belt component 1, the pushing component 6 pushes the sandwich horizontally, and at the same time, the moving end of the limiting component 7 and the moving end of the folding limiting component 8 are extended to limit the sandwich, and the right folding component 9 and the left folding component 10 respectively fold the right wing edge and the left wing edge to form a triangular package, and then the label pasting component 11 pastes the label at the folded position, thereby reducing manual operation and improving the sandwich production efficiency.

[0061] like Figure 1 , Figure 2 and Figure 6 As shown, in some embodiments, the pushing component 6 includes a pushing cylinder 13, which is installed on the conveyor belt component 1. A pushing plate that fits the surface of the sandwich is installed at the output end of the pushing cylinder 13, and the pushing plate has an inclined surface, and the inclined surface corresponds to the slope of the sandwich. The pushing cylinder 13 extends to drive the pushing plate to push the sandwich laterally, so that the end of the sandwich is closely abutted against the limiting end of the folding limiting component 8, avoiding a gap between the sandwich and the limiting end of the folding limiting component 8, which is conducive to the subsequent right folding component 9 and the left folding component 10 to fold the right wing edge and the left wing edge of the packaging bag respectively, thereby improving the folding aesthetics of the packaging bag.

[0062] Two blowing components 35 are installed on the support frame 12. The blowing rods on the two blowing components 35 are respectively directed toward the two sides of the movable limiting component 7 to blow fold the wings on both sides of the packaging bag, which is beneficial for the subsequent left folding component 10 and the right folding component 9 to fold the wings on both sides of the packaging bag.

[0063] The side wall of the conveyor belt 3 is also provided with an anti-restoration guide plate 36 for preventing the wing edge of the packaging bag from restoring. The anti-restoration guide plate 36 is provided with a notch 37 for pasting labels at the label pasting component 11. The notch 37 facilitates the label pasting component 11 to paste the label on the packaging bag. The conveyor belt 3 is also provided with a brush component 38 near the end of the conveyor belt 3. Specifically, the brush component 38 includes a telescopic cylinder and a brush. The telescopic cylinder drives the brush to move and transfer the sandwich pasted with the label on the conveyor belt 3 to other production stations.

[0064] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the movable limiting component 7 includes a limiting cylinder 14, which is mounted on the support frame 12 and a limiting plate is mounted on the output end of the limiting cylinder 14, and the limiting plate is directly opposite to the output end of the pushing component 6. Specifically, the limiting cylinder 14 is mounted on the support frame 12 and the output end of the limiting cylinder 14 is connected to the limiting plate through a connecting member, and the limiting plate is directly opposite to the pushing plate on the pushing component 6. The limiting plate and the pushing plate are directly opposite to each other, and after the sandwich is limited in a suitable area, the wing edge of the sandwich packaging bag is folded by a subsequent folding component.

[0065] The folding limiting component 8 includes a folding limiting cylinder 15, which is installed on the support frame 12. The folding limiting cylinder 15 is installed vertically and the output end of the folding limiting cylinder 15 faces the conveyor belt 3. The output end of the folding limiting cylinder 15 is installed with a right folding piece 16 and a left folding piece 17 respectively cooperating with the right folding component 9 and the left folding component 10. The right folding piece 16 and the left folding piece 17 are respectively used for guiding when the wing edge of the packaging bag is folded. The right folding piece 16 and the left folding piece 17 are respectively used as limiting components when the right folding component 9 and the left folding component 10 are folded, and the wing edge of the packaging bag is folded around the folding components.

[0066] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, in another embodiment, the right folding component 9 includes a right folding cylinder 18, which is installed on the support frame 12, and the right folding cylinder 18 is parallel to the length direction of the conveyor belt 3. A right folding plate 19 is installed at the output end of the right folding cylinder 18, and the end of the right folding plate 19 is inclined away from the conveyor belt 3. The right folding cylinder 18 drives the right folding plate 19, and the inclined end of the right folding plate 19 is conducive to guiding the wing edge of the packaging bag during folding.

[0067] The left folding component 10 includes a left folding rotary cylinder 20, which is mounted on the support frame 12. A left folding plate is mounted on the output end of the left folding rotary cylinder 20. The left folding rotary cylinder 20 rotates to drive the left folding plate 39 to fold the left wing of the packaging bag. When folding the packaging bag, the right folding plate 19 and the left folding plate 39 are respectively located on both sides of the limit end of the folding limit component 8 to fold the packaging bag into a triangle.

[0068] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the label pasting component 11 includes a label placing component 21 for placing the label tape. The label placing component 21 can adopt a label placing rack. A guide component 22, a clamping component and a traction component are sequentially arranged along the moving direction of the label tape. The guide component 22 can adopt a rotating sleeve sleeved on a fixed shaft to ensure that the end of the label tape is parallel to the conveyor belt component 1 when moving, which is convenient for pasting the label. The clamping component is used to clamp the end of the label tape and then pull the label tape out. The side wall of the clamping component is provided with a cutting component for cutting the label tape, and the side wall of the cutting component is also provided with a pasting component for pasting the cut label on the sandwich.

[0069] like Figure 1 and Figure 3As shown, in this embodiment, the clamping assembly includes a clamping block 24 and a clamping cylinder 23. The clamping block 24 is installed on the support frame 12. The output end of the clamping cylinder 23 is directly opposite to the clamping block 24. The clamping block 24 and the clamping cylinder 23 are used to clamp the label tape. The clamping block 24 and the clamping cylinder 23 cooperate to clamp the label tape, which is convenient for subsequent cutting of the label tape and clamping and pulling out the label tape next time.

[0070] The cutting assembly includes a cutting scissors 26 and a cutting cylinder 25. The output end of the cutting cylinder 25 is connected to the cutting scissors 26, and the cutting scissors 26 is used to cut the label tape. Specifically, the cutting cylinder 25 can be a pneumatic finger or a rotary cylinder, and the two ends of the cutting scissors 26 are respectively connected to the pneumatic fingers, or one end of the cutting scissors 26 is fixed and the other end is connected to the moving end of the rotary cylinder.

[0071] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, the traction assembly includes a pneumatic finger 27, a guide assembly and a traction cylinder 28. The output end of the traction cylinder 28 is connected to the pneumatic finger 27. The output end of the pneumatic finger 27 is used to clamp the end of the label tape. Then the traction cylinder 28 moves to drive the pneumatic finger 27 to retract, and pull the label tape out.

[0072] In order to ensure the smooth movement of the pneumatic finger 27, a guide assembly is installed at the lower end of the pneumatic finger 27. Specifically, the guide assembly includes a guide slider and a guide rail matched with the guide slider, the guide slider is connected to the pneumatic finger 27, and the guide rail is installed on the support frame 12.

[0073] The pasting assembly includes a first pasting cylinder 29, a second pasting cylinder 30 and a pasting block 32. The output end of the first pasting cylinder 29 is connected to the second pasting cylinder 30, and the output end of the second pasting cylinder 30 is connected to the pasting block 32 through a telescopic rod. In other embodiments, a vacuum adsorption assembly for adsorbing labels is also installed on the pasting block 32. The outer sleeve of the telescopic rod is provided with a pasting spring 31. The two ends of the pasting spring 31 are respectively abutted against the pasting block 32 and the output end of the second pasting cylinder 30. The pasting block 32 is connected to a connecting piece 33. The other end of the connecting piece 33 has a sliding groove 34. A sliding column is provided in the sliding groove 34. The sliding column is connected to the second pasting cylinder 30. The movement of the first pasting cylinder 29 and the second pasting cylinder 30 drives the pasting block 32 to move and paste the cut labels on the folded part of the sandwich packaging bag.

[0074] The working principle of the utility model is as follows: a sandwich is placed in the limiting component 5 on the conveyor belt 3, the power component 4 drives the conveyor belt 3 to move to the specified position, and after the limiting cylinder 14 is extended, the folding limiting cylinder 15 is extended, so that the right folding piece 16 and the left folding piece 17 on the output end of the folding limiting cylinder 15 are located at the rear side of the sandwich, and the pushing cylinder 13 is extended to limit the sandwich between the pushing plate and the limiting plate, and the right folding piece 16 and the left folding piece 17 are located between the limiting plate and the sandwich;

[0075] Then the air outlet rods on the two blowing components 35 blow out compressed air to fold the wing edges on both sides of the packaging bag, which is conducive to the folding of the rear left folding component 10 and the right folding component 9. When folding, the right folding cylinder 18 extends to drive the right folding plate 19 to fold the right wing edge of the packaging bag around the right folding piece 16, and the left folding rotary cylinder 20 rotates to drive the left rotary folding plate to rotate to fold the left wing edge of the packaging bag around the left folding piece 17, so that the right wing edge and the left wing edge of the packaging bag are respectively located in front of the right folding piece 16 and the left folding piece 17 to form a triangular bag, and the limit cylinder 14, the folding limit cylinder 15, the right folding cylinder 18 and the left folding rotary cylinder 20 are reset and wait for the next work;

[0076] When the sandwich folded into a triangular bag continues to be conveyed on the conveyor belt 3, the folded part of the wing edge always contacts the anti-restoration guide plate 36 to prevent the folded part from being reset, which would affect the label sticking;

[0077] Next, after the sandwich is transported to the designated position, the first pasting cylinder 29 and the second pasting cylinder 30 extend to paste the label adsorbed on the pasting block 32 at the wing edge folding position, and the conveyor belt 3 continues to transport backward. After reaching the designated position, the brush component 38 transfers the sandwich to the next operation process. At the same time, after the label pasting is completed, the label pasting component 11 cuts the strips of labels according to the requirements and adsorbs them on the pasting block 32, waiting for the next pasting operation.

[0078] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0079] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An automatic labeling device for a sandwich conveyor belt, characterized in that: include A conveyor belt component (1), the conveyor belt component (1) being mounted on a bracket (2), the conveyor belt component (1) being mounted with a power component (4) for driving the conveyor belt (3) to move, and the conveyor belt (3) being mounted with a limiting component (5) for limiting the position of the sandwich; A pushing component (6), the pushing component (6) being mounted on the conveyor belt component (1) and being used for laterally pushing the sandwich; A movable limiting component (7), wherein the movable limiting component (7) is mounted on the support frame (12) and is directly opposite to the pushing component (6); A folding limiting component (8), wherein the folding limiting component (8) is mounted on the support frame (12), and a limiting end of the folding limiting component (8) is located in front of the moving limiting component (7); a right folding component (9), the right folding component (9) being mounted on the support frame (12) and located on the right side of the folding limiting component (8) and used for folding the right wing edge of the packaging bag; a left folding component (10), the left folding component (10) being mounted on the support frame (12) and located on the left side of the folding limiting component (8) and used for folding the left wing edge of the packaging bag; A label pasting component (11), wherein the label pasting component (11) is mounted on the support frame (12) and is used to paste a label onto the folded packaging bag.

2. The automatic labeling device for sandwich conveyor belt according to claim 1 is characterized in that: The pushing component (6) comprises a pushing cylinder (13), the pushing cylinder (13) being mounted on the conveyor belt component (1), and a pushing plate which is in contact with the surface of the sandwich being mounted on the output end of the pushing cylinder (13); Two blowing components (35) are installed on the support frame (12), and the blowing rods on the two blowing components (35) are respectively directed toward the two sides of the movable limiting component (7) for blowing and folding the wing edges on both sides of the packaging bag; The side wall of the conveyor belt (3) is also provided with an anti-restoration guide plate (36) for preventing the wing edge of the packaging bag from restoring. A notch (37) for pasting a label is provided on the anti-restoration guide plate (36) and located at the label pasting component (11). A brush component (38) is also provided on the conveyor belt (3) near the end of the conveyor belt (3).

3. The automatic labeling device for sandwich conveyor belt according to claim 2 is characterized in that: The movable limiting component (7) comprises a limiting cylinder (14), the limiting cylinder (14) being mounted on the support frame (12) and the output end of the limiting cylinder (14) being connected to a limiting plate via a connecting piece, the limiting plate being directly opposite to the pushing plate on the pushing component (6).

4. The automatic labeling device for sandwich conveyor belt according to claim 1 is characterized in that: The folding limit component (8) comprises a folding limit cylinder (15), the folding limit cylinder (15) is mounted on the support frame (12), the folding limit cylinder (15) is vertically mounted and the output end of the folding limit cylinder (15) faces the conveyor belt (3), and the output end of the folding limit cylinder (15) is mounted with a right folding sheet (16) and a left folding sheet (17) respectively cooperating with the right folding component (9) and the left folding component (10), and the right folding sheet (16) and the left folding sheet (17) are respectively used for guiding when the wing edge of the packaging bag is folded.

5. The automatic labeling device for sandwich conveyor belt according to claim 1 is characterized in that: The right folding component (9) comprises a right folding cylinder (18), the right folding cylinder (18) being mounted on the support frame (12), and the right folding cylinder (18) being parallel to the length direction of the conveyor belt (3), and a right folding plate (19) being mounted at the output end of the right folding cylinder (18), and the end of the right folding plate (19) being inclined in a direction away from the conveyor belt (3).

6. The automatic labeling device for sandwich conveyor belt according to claim 5 is characterized in that: The left folding component (10) comprises a left folding rotary cylinder (20), the left folding rotary cylinder (20) is mounted on the support frame (12), and a left rotary folding plate (39) is mounted on the output end of the left folding rotary cylinder (20); When the packaging bag is folded, the right folding plate (19) and the left rotating folding plate (39) are respectively located on both sides of the limiting end of the folding limiting component (8) to fold the packaging bag into a triangle.

7. The automatic labeling device for sandwich conveyor belt according to claim 1 is characterized in that: The label pasting component (11) comprises a label placing component (21) for placing a label tape, a guide component (22), a clamping component and a pulling component are sequentially arranged along the moving direction of the label tape, a cutting component for cutting the label tape is arranged on a side wall of the clamping component, and a pasting component for pasting the cut label on the sandwich is also arranged on a side wall of the cutting component.

8. The automatic labeling device for sandwich conveyor belt according to claim 7 is characterized in that: The clamping assembly comprises a clamping block (24) and a clamping cylinder (23); the clamping block (24) is mounted on the support frame (12); an output end of the clamping cylinder (23) is directly opposite to the clamping block (24); the clamping block (24) and the clamping cylinder (23) cooperate to clamp the label tape; The cutting assembly comprises a cutting scissors (26) and a cutting cylinder (25); the output end of the cutting cylinder (25) is connected to the cutting scissors (26); and the cutting scissors (26) are used to cut off the label tape.

9. The automatic labeling device for sandwich conveyor belt according to claim 7, characterized in that: The traction assembly comprises a pneumatic finger (27), a guide assembly and a traction cylinder (28); the output end of the traction cylinder (28) is connected to the pneumatic finger (27); and the output end of the pneumatic finger (27) is used to clamp the end of the label belt; The guide assembly comprises a guide slider and a guide rail cooperating with the guide slider, the guide slider is connected to the pneumatic finger (27), and the guide rail is mounted on the support frame (12).

10. The automatic labeling device for sandwich conveyor belt according to claim 7, characterized in that: The pasting assembly comprises a first pasting cylinder (29), a second pasting cylinder (30) and a pasting block (32); the output end of the first pasting cylinder (29) is connected to the second pasting cylinder (30); the output end of the second pasting cylinder (30) is connected to the pasting block (32) via a telescopic rod; a vacuum adsorption assembly is mounted on the pasting block (32); a pasting spring (31) is provided on the outer sleeve of the telescopic rod; two ends of the pasting spring (31) are respectively in contact with the pasting block (32) and the output end of the second pasting cylinder (30); the pasting block (32) is connected to a connecting piece (33); the other end of the connecting piece (33) has a sliding groove (34); a sliding column is provided in the sliding groove (34); the sliding column is connected to the second pasting cylinder (30).

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