Automatic labeling machine for mouth wash bottle body

Abstract

The invention discloses an automatic labeling machine for mouth wash bottle bodies, and relates to the technical field of labeling equipment, the automatic labeling machine comprises a conveying belt machine table for driving the bottle bodies to move linearly, a mounting block is mounted above the conveying belt machine table in parallel, and a first label pressing unit and a second label pressing unit are arranged on the same side face of the mounting block; the first label pressing unit and the second label pressing unit jointly form an extruding and pasting structure, the extruding and pasting structure can completely cover bottle labels on the conveying belt machine table, a power assisting unit is installed on the installation block, and the power assisting unit can provide assistance for the extruding and pasting structure and the bottle labels to be attached all the time. The mounting block, the first label pressing unit and the second label pressing unit are arranged on the conveying belt machine table, so that a squeezing and pasting structure for completely covering bottle labels on the conveying belt machine table is formed, the labels on the bottles can be integrally pressed and smoothed, the firmness degree of the labels on the bottles is improved, and the pasting quality of the labels is improved.

Description

Technical Field

[0001] This invention relates to the field of labeling equipment technology, specifically to an automatic labeling machine for mouthwash bottles. Background Technology

[0002] Automatic labeling machines are packaging equipment used to automatically affix labels to the surface of bottle containers. They use a precise conveying and positioning system to deliver the bottles to the labeling head and automatically complete the entire process of label feeding, peeling, affixing, and pressing and smoothing.

[0003] Existing patents include Chinese patent publication number CN213535426U, titled "A Double-Sided Labeling Machine for Flat Bottles". This patent includes "a conveyor, a machine base, a first labeling mechanism, and a second labeling mechanism. The cross-section of the conveyor top conveyor trough is an isosceles trapezoid. The machine base is located in the middle of the bottom of the conveyor. The first labeling mechanism and the second labeling mechanism are symmetrically fixedly connected to the front and rear sides of the top of the machine base. The first labeling mechanism and the second labeling mechanism have the same structure. After labeling both sides of the flat bottle, the label brush will make close contact with both sides of the flat bottle. As the flat bottle continues to move, the label brush will brush on the label, pressing the newly applied label firmly onto both sides of the flat bottle."

[0004] While existing labeling machines are equipped with a labeling brush to further press and smooth the label against the bottle, in actual labeling, the bottle moves linearly with the conveyor belt, while the labeling brush remains stationary relative to the bottle. Mouthwash bottles are typically flat and curved, with a cross-section generally approximating an ellipse. Therefore, the labeling brush can only apply pressure and smoothing force to the convex parts of the bottle. The brush cannot cover the entire label; its trajectory is essentially tangent only to the convex surface of the bottle. This can easily lead to uneven label adhesion and peeling. To address these issues, we propose a new technical solution. Summary of the Invention

[0005] The purpose of this invention is to provide an automatic labeling machine for mouthwash bottles to overcome the shortcomings of the prior art.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] An automatic labeling machine for mouthwash bottles includes a conveyor belt platform that drives the bottle to move linearly. A mounting block is installed parallel above the conveyor belt platform. A first label pressing unit and a second label pressing unit are provided on the same side of the mounting block. The first label pressing unit and the second label pressing unit together form an extrusion structure. The extrusion structure can completely cover the bottle label on the conveyor belt platform. An assist unit is installed on the mounting block. The assist unit can provide assistance to ensure that the extrusion structure and the bottle label are always in contact.

[0008] Preferably, the first marking unit and the second marking unit have the same structure, and the movement direction of the first marking unit is always opposite to that of the second marking unit.

[0009] Preferably, both the first and second label pressing units include a horizontally arranged crossbar. One end of the crossbar is equipped with a label pressing brush. The side of the mounting block has an insertion channel for the other end of the crossbar to be inserted. By reciprocating within the insertion channel, the crossbar allows the label pressing brush to adjust in real time according to the changes in the curved surface of the bottle, ensuring that the label pressing brush is always firmly attached to the bottle label.

[0010] Preferably, the assist unit includes a receiving groove that is perpendicularly connected to the insertion channel, and a toothed roller is rotatably installed in the receiving groove. The crossbar of the first marking unit meshes with the toothed roller through a first rack, and the second marking unit meshes with the toothed roller through a second rack. The meshing transmission directions of the first rack and the second rack are opposite.

[0011] Preferably, the insertion channel is provided with a sleeve that is movably connected to the crossbar, and a slide groove is provided at the bottom of the insertion channel. A slider fixed to the sleeve is slidably adapted in the slide groove, and a threaded rod that spirally penetrates the slider is rotatably installed in the slide groove, with one end of the threaded rod extending out of the mounting block.

[0012] Preferably, the pressure brush includes a vertically arranged brush rod, the top of which is fixed with a connecting sleeve that is movably sleeved with a crossbar, and a limit pin is screwed into the connecting sleeve. When the limit pin is engaged with the crossbar, the position of the brush rod on the crossbar is fixed, and a brush head unit is installed at the bottom of the brush rod.

[0013] Preferably, the brush head unit includes a circular tube sleeve that is rotatably sleeved with the brush rod, and an elastic sponge sleeve is fixedly sleeved on the outer side of the circular tube sleeve.

[0014] Preferably, the knob block is fixed at one end of the threaded rod located outside the mounting block.

[0015] Preferably, the mounting block has extrusion structures on both sides, and the extrusion structures are symmetrically distributed on both sides of the mounting block.

[0016] Preferably, the top of the mounting block is provided with a shielding cover, and the mounting block is fixed to the conveyor belt platform by support legs.

[0017] In the above technical solution, the present invention provides an automatic labeling machine for mouthwash bottles. By setting an installation block, a first label pressing unit and a second label pressing unit on the conveyor belt, an extrusion structure is formed to completely cover the bottle label on the conveyor belt. This structure can press and smooth the label on the bottle as a whole, which helps to avoid the label lifting due to uneven label pressing, improves the firmness of the label on the bottle, and improves the label pasting quality. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0019] Figure 1 This is an overall schematic diagram of an automatic labeling machine for mouthwash bottles according to the present invention;

[0020] Figure 2 For the present invention Figure 1 Enlarged view at point D;

[0021] Figure 3 This is a schematic diagram showing the position of the assist unit of an automatic labeling machine for mouthwash bottles according to the present invention within the mounting block;

[0022] Figure 4 This is a cross-sectional schematic diagram of the insertion channel of an automatic labeling machine for mouthwash bottles according to the present invention, shown in the mounting block.

[0023] Figure 5 This is a schematic diagram of the bottle body in the first stage of movement of an automatic labeling machine for mouthwash bottles according to the present invention.

[0024] Figure 6 This is a schematic diagram of the bottle body in the second stage of movement of an automatic labeling machine for mouthwash bottles according to the present invention.

[0025] Figure 7 This is a schematic diagram of the bottle body in the third stage of movement of an automatic labeling machine for mouthwash bottles according to the present invention.

[0026] Figure 8 This is a top view projection of the bottle body on the conveyor belt of an automatic labeling machine for mouthwash bottles according to the present invention.

[0027] Explanation of reference numerals in the attached figures:

[0028] 1. Conveyor belt platform; 2. Mounting block; 3. First marking unit; 4. Second marking unit; 5. Assist unit; 6. Crossbar; 7. Marking brush; 7.1. Brush rod; 7.2. Connecting sleeve; 7.3. Limiting pin; 7.4. Brush head unit; 7.41. Round tube sleeve; 7.42. Elastic sponge sleeve; 8. Insertion channel; 9. Receiving groove; 10. Toothed roller; 11. First toothed rack; 12. Second toothed rack; 13. Sleeve; 14. Slide groove; 15. Slider; 16. Threaded rod; 17. Knob block; 18. Support leg; 19. Cover. Detailed Implementation

[0029] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0030] Automatic labeling machines are packaging equipment used to automatically affix labels to the surface of bottle containers. They use a precise conveying and positioning system to deliver bottles to the labeling head and automatically complete the entire process of label feeding, peeling, affixing, and pressing / smoothing. The pressing and smoothing of the label on the bottle is typically achieved using a label brush, also known as a label applicator. In practical applications, labels are generally affixed to the flat surface of flat bottles. Therefore, when the moving bottle passes the label brush, there is relative movement between the brush and the bottle, allowing the brush to apply a pressing and smoothing force to the label. When the label is affixed to the surface of a cylindrical bottle, the bottle rotates relative to the label brush via a corresponding drive mechanism as it passes the brush, causing the bottle to roll relative to the brush and thus allowing the brush to apply a pressing and smoothing force to the label.

[0031] However, the cross-section of a mouthwash bottle is approximately elliptical. The bottle lacks a flat surface, and unlike a cylindrical bottle, the bottle's rotational outline cannot align with its own contour. Therefore, rotating the bottle prevents the label brush from applying pressure and smoothing force to the label. Consequently, in actual labeling, the brush can only apply pressure and smoothing force to the convex or curved areas of the bottle. The brush cannot cover the entire label; its trajectory is only tangent to the convex surface of the bottle. This can easily lead to uneven label application and peeling. Therefore, we have proposed a new technical solution to address this problem.

[0032] Please see Figures 1-8The present invention provides an automatic labeling machine for mouthwash bottles, including a conveyor belt platform 1 that drives the bottle to move linearly, an mounting block 2 that is installed parallel above the conveyor belt platform 1, a first label pressing unit 3 and a second label pressing unit 4 that are provided on the same side of the mounting block 2, the first label pressing unit 3 and the second label pressing unit 4 together constitute an extrusion structure, the extrusion structure can completely cover the bottle label on the conveyor belt platform 1, and an assisting unit 5 is installed on the mounting block 2, the assisting unit 5 can provide assistance to ensure that the extrusion structure and the bottle label are always in contact;

[0033] Specifically, the conveyor belt machine 1 includes a horizontally arranged conveyor body and a conveyor belt on the machine. The bottle can move along the horizontal direction line by the conveyor belt in a standing state. The machine is equipped with anti-tipping railings to keep the bottle upright. The conveyor belt machine 1 is existing equipment and will not be described in detail. The mounting block 2 is located directly above the conveyor belt machine 1. The length direction line of the mounting block 2 is parallel to the conveying direction line of the conveyor belt machine 1. The first label pressing unit 3 and the second label pressing unit 4 are both located on the side of the conveyor belt machine 1, so that they can contact the bottle on the conveyor belt machine 1. The assisting unit 5 provides assistance for the extrusion structure to adhere to the label on the bottle.

[0034] In actual use, the bottle moves with the conveyor belt 1. After the bottle passes the labeling head, the label adheres to the side of the bottle. Then, the bottle with the label continues to move toward the area where the extrusion structure is located. In particular, during the process of the bottle passing through the extrusion structure, the first label pressing unit 3 and the second label pressing unit 4 pass by the side of the bottle in sequence to press and cover it. All parts of the label can be pressed firmly on the bottle, which helps to avoid the label lifting due to uneven pressing and improves the firmness of the label on the bottle and enhances the label pasting quality.

[0035] In another embodiment of the present invention, the first label pressing unit 3 and the second label pressing unit 4 have the same structure. The movement direction of the first label pressing unit 3 is always opposite to that of the second label pressing unit 4. Furthermore, both the first label pressing unit 3 and the second label pressing unit 4 include a horizontally arranged crossbar 6. A label pressing brush 7 is installed at one end of the crossbar 6. The side of the mounting block 2 is provided with an insertion channel 8 for the other end of the crossbar 6 to be inserted. The crossbar 6 moves back and forth in the insertion channel 8, so that the label pressing brush 7 can be adjusted in real time according to the change of the bottle surface, ensuring that the label pressing brush 7 is always in a state of being attached and pressed tightly to the bottle label. Specifically, the cross-sectional outline of the crossbar 6 and the cross-sectional outline of the insertion channel 8 are both rectangular. The crossbar 6 can reciprocate and extend along the length direction of the crossbar 6 in the insertion channel 8.

[0036] The assisting unit 5 includes a receiving groove 9 that is perpendicularly connected to the insertion channel 8. The length direction line of the receiving groove 9 is perpendicular to the length direction line of the insertion channel 8. A toothed roller 10 is rotatably installed in the receiving groove 9. The axis of the toothed roller 10 is parallel to the length direction line of the receiving groove 9. The crossbar 6 of the first marking unit 3 meshes with the toothed roller 10 through the first rack 11. The second marking unit 4 meshes with the toothed roller 10 through the second rack 12. The meshing transmission directions of the first rack 11 and the second rack 12 are opposite. The first rack 11 and the second rack 12 are parallel to each other. The length direction lines of the first rack 11 and the second rack 12 are both perpendicular to the axis of the toothed roller 10.

[0037] In actual use, multiple upright bottles are arranged at intervals on the conveyor belt platform 1. The bottles move with the conveyor belt platform 1, and each bottle with a label passes sequentially through the first label pressing unit 3 and the second label pressing unit 4, as shown in the attached diagram of the instruction manual. Figure 8 The bottle body is projected from above on the conveyor belt. The bottle body moves in the forward direction in the lateral direction. The first labeling unit 3 and the second labeling unit 4 have a longitudinal stroke perpendicular to the bottle body in the longitudinal direction. The trajectory line of the longitudinal stroke is the same as the trajectory line of the crossbar 6 reciprocating in the insertion channel 8. One end of the longitudinal stroke is the contact position, and the other end of the longitudinal stroke is the departure position. Point A of the bottle body is the forward end of the bottle body. Point A of the bottle body first passes through the first labeling unit 3 and then passes through the second labeling unit 4.

[0038] The bottle moves in the first stage towards the first pressure label unit 3, as shown in the attached diagram of the instruction manual. Figure 5 At this time, the first label unit 3 has not yet come into contact with the bottle body. The first label unit 3 is in the close-fitting position, and the second label unit 4 is in the away position.

[0039] As the bottle continues to move forward, it enters the second stage of movement, as shown in the attached diagram in the instruction manual. Figure 6 At this time, the label in area AB of the bottle is squeezed by the first label pressing unit 3, thereby achieving a tight, smooth and adhered fit between the label in area AB and the bottle. During this process, area AB of the bottle also generates a reaction force on the first label pressing unit 3, causing the first label pressing unit 3 to move from the close-fitting position to the away position. When point B of the bottle reaches the first label pressing unit 3, the first label pressing unit 3 is in the away position. Since the movement direction of the first label pressing unit 3 is always opposite to the movement direction of the second label pressing unit 4, under the meshing transmission action of the first rack 11, the toothed roller 10 and the second rack 12, the second label pressing unit 4 also switches from the away position to the close-fitting position. At the same time, point A of the bottle also reaches the position of the second label pressing unit 4.

[0040] As the bottle continues to move forward, it enters the third stage of movement, as shown in the attached diagram in the instruction manual. Figure 7 Since the second label pressing unit 4 is in the contact position, the label in area AB of the bottle is squeezed by the second label pressing unit 4 during the movement. During this process, area AB of the bottle also exerts a reaction force on the second label pressing unit 4, causing the second label pressing unit 4 to move from the contact position to the away position. Because the movement direction of the first label pressing unit 3 is always opposite to that of the second label pressing unit 4, under the meshing transmission action of the first rack 11, the toothed roller 10, and the second rack 12, the first label pressing unit 3 also moves from the away position to the contact position. During this process, the label in area BC of the bottle is squeezed by the first label pressing unit 3, and the label in area BC is also squeezed and adhered. When point B of the bottle reaches the second label pressing unit 4, the second label pressing unit 4 is in the away position, and point C of the bottle reaches the first label pressing unit 3. As the bottle continues to move forward, it completely detaches from the area where the first label unit 3 and the second label unit 4 together form the extrusion structure. At this point, the first label unit 3 is in the contact position, and the second label unit 4 is in the away position, as shown in the attached diagram of the instruction manual. Figure 5 This prepares for the next bottle label pressing and smoothing collaboration;

[0041] In other words, the label on the bottle consists of three areas: A, B, and C. Segments AB and BC are symmetrical and have the same curvature. During the second stage of the bottle's movement, the label in area AB is pressed, smoothed, and adhered to the bottle. During the third stage of the bottle's movement, the label in area BC is also pressed and adhered. In practice, the first pressing unit 3 and the second pressing unit 4 can move to conform to the contour surface of the bottle, thus pressing and smoothing the label on the bottle. In addition, it can prevent excessive pressure on the bottle, ensuring that the label maintains a uniform stress state throughout the entire pressing process, preventing the bottle from deforming due to excessive pressure and causing the label to wrinkle.

[0042] In another embodiment of the present invention, a sleeve 13 is provided in the insertion channel 8 to be movably sleeved with the crossbar 6. A slide groove 14 is provided at the bottom of the insertion channel 8. The length direction line of the slide groove 14 is perpendicular to the length direction line of the crossbar 6. A slider 15 fixed to the sleeve 13 is slidably adapted in the slide groove 14. A threaded rod 16 that spirally passes through the slider 15 is rotatably installed in the slide groove 14. One end of the threaded rod 16 extends out of the mounting block 2. A knob block 17 is fixed at the end of the threaded rod 16 located outside the mounting block 2.

[0043] In practical use, when it is necessary to adjust the distance between the first label unit 3 and the second label unit 4, this can be achieved by rotating the knob block 17. For example, turning the knob block 17 forward causes the threaded rod 16 to rotate forward in the slide groove 14, while the slider 15, which is screwed onto the threaded rod 16, slides forward in the slide groove 14. The forward-sliding slider 15 drives the crossbar 6 to move forward in the insertion channel 8 through the sleeve 13, thereby increasing the distance between the first label unit 3 and the second label unit 4. Similarly, to decrease the distance between the first label unit 3 and the second label unit 4, the knob block 17 can be turned in the opposite direction. Thus, the distance between the first label unit 3 and the second label unit 4 can be flexibly adjusted according to the actual specifications of the bottle.

[0044] In another embodiment of the present invention, the pressure brush 7 includes a vertically arranged brush rod 7.1, the body of which is perpendicular to the horizontal plane. A connecting sleeve 7.2 is fixed to the top of the brush rod 7.1 and is movably sleeved with the crossbar 6. The axis of the connecting sleeve 7.2 is perpendicular to the axis of the brush rod 7.1. A limiting pin 7.3 is screwed into the connecting sleeve 7.2. When the limiting pin 7.3 is engaged with the crossbar 6, the position of the brush rod 7.1 on the crossbar 6 is fixed. A brush head unit 7.4 is installed at the bottom of the brush rod 7.1. The brush head unit 7.4 includes a round tube sleeve 7.41 that is rotatably sleeved with the brush rod 7.1. An elastic sponge sleeve 7.42 is fixedly sleeved on the outside of the round tube sleeve 7.41.

[0045] In actual use, when the first label pressing unit 3 and the second label pressing unit 4 need to adjust the stroke length of the longitudinal stroke, for example, to shorten the stroke length of the longitudinal stroke, the limiting pin 7.3 is first turned in the reverse direction, so that the limiting pin 7.3 is separated from the crossbar 6. Then, the round tube sleeve 7.41 drives the brush rod 7.1 to move forward along the crossbar 6, thereby shortening the distance between the brush rod 7.1 and the bottle. Similarly, when the round tube sleeve 7.41 drives the brush rod 7.1 to move in the reverse direction along the crossbar 6, the distance between the brush rod 7.1 and the bottle is increased. After the adjustment is completed, the limiting pin 7.3 is turned in the forward direction, so that the limiting pin 7.3 is engaged with the crossbar 6. Then the position of the brush rod 7.1 on the crossbar 6 is fixed, so that the position of the brush rod 7.1 can be flexibly adjusted according to the actual specifications of the bottle.

[0046] In another embodiment of the present invention, the mounting block 2 is provided with extrusion structures on both sides. The extrusion structures are symmetrically distributed on both sides of the mounting block 2. Thus, when there are labels on both sides of the bottle, the labels on the bottle can be pressed and adhered at the same time through the extrusion structures symmetrically arranged on both sides of the bottle.

[0047] In another embodiment of the present invention, the top of the mounting block 2 is provided with an inspection port that communicates with the insertion channel 8 and the receiving groove 9. The top of the mounting block 2 is provided with a shielding cover 19, which can cover and protect the inspection port on the top of the mounting block 2 to prevent debris from falling into the receiving groove 9. The mounting block 2 is fixed to the conveyor belt platform 1 by the support leg 18.

[0048] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. An automatic labeling machine for mouthwash bottles, comprising a conveyor belt (1) that drives the bottle body to move linearly, characterized in that, An installation block (2) is installed parallel above the conveyor belt machine (1). A first label pressing unit (3) and a second label pressing unit (4) are provided on the same side of the installation block (2). The first label pressing unit (3) and the second label pressing unit (4) together form an extrusion structure. The extrusion structure can completely cover the bottle label on the conveyor belt machine (1). An assisting unit (5) is installed on the installation block (2). The assisting unit (5) can provide assistance for the extrusion structure to always adhere to the bottle label.

2. An automatic labeling machine for mouthwash bottles according to claim 1, characterized in that, The first pressure mark unit (3) and the second pressure mark unit (4) have the same structure, and the movement direction of the first pressure mark unit (3) is always opposite to that of the second pressure mark unit (4).

3. An automatic labeling machine for mouthwash bottles according to claim 2, characterized in that, Both the first label pressing unit (3) and the second label pressing unit (4) include a horizontally arranged crossbar (6). One end of the crossbar (6) is equipped with a label pressing brush (7). The side of the mounting block (2) is provided with an insertion channel (8) for the other end of the crossbar (6) to be inserted. The crossbar (6) moves back and forth in the insertion channel (8), so that the label pressing brush (7) can be adjusted in real time according to the change of the bottle body surface, ensuring that the label pressing brush (7) is always in a state of being attached and pressed tightly to the bottle label.

4. An automatic labeling machine for mouthwash bottles according to claim 3, characterized in that, The assist unit (5) includes a receiving groove (9) that is perpendicularly connected to the insertion channel (8). A toothed roller (10) is rotatably installed in the receiving groove (9). The crossbar (6) of the first marking unit (3) meshes with the toothed roller (10) through the first rack (11). The second marking unit (4) meshes with the toothed roller (10) through the second rack (12). The meshing transmission directions of the first rack (11) and the second rack (12) are opposite.

5. An automatic labeling machine for mouthwash bottles according to claim 3, characterized in that, The insertion channel (8) is provided with a sleeve (13) that is movably connected to the crossbar (6). The bottom of the insertion channel (8) is provided with a slide groove (14). A slider (15) that is fixed to the sleeve (13) is slidably fitted in the slide groove (14). A threaded rod (16) that spirally passes through the slider (15) is rotatably installed in the slide groove (14). One end of the threaded rod (16) extends out of the mounting block (2).

6. An automatic labeling machine for mouthwash bottles according to claim 5, characterized in that, The pressure brush (7) includes a vertically arranged brush rod (7.1). The top of the brush rod (7.1) is fixed with a connecting sleeve (7.2) that is movably sleeved with a crossbar (6). A limit pin (7.3) is screwed into the connecting sleeve (7.2). When the limit pin (7.3) is engaged with the crossbar (6), the position of the brush rod (7.1) on the crossbar (6) is fixed. A brush head unit (7.4) is installed at the bottom of the brush rod (7.1).

7. An automatic labeling machine for mouthwash bottles according to claim 6, characterized in that, The brush head unit (7.4) includes a cylindrical sleeve (7.41) that is rotatably sleeved with the brush rod (7.1), and an elastic sponge sleeve (7.42) is fixedly sleeved on the outside of the cylindrical sleeve (7.41).

8. An automatic labeling machine for mouthwash bottles according to claim 5, characterized in that, The threaded rod (16) is fixed to the knob block (17) at one end outside the mounting block (2).

9. An automatic labeling machine for mouthwash bottles according to claim 1, characterized in that, The mounting block (2) has extrusion structures on both sides, and the extrusion structures are symmetrically distributed on both sides of the mounting block (2).

10. An automatic labeling machine for mouthwash bottles according to claim 4, characterized in that, The top of the mounting block (2) is provided with a shielding cover (17), and the mounting block (2) is fixed to the conveyor belt platform (1) by a support leg (18).

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