Labeling head of labeling machine and labeling method

Abstract

The present invention relates to a labeling head of a labeling machine and a labeling method, comprising a label suction mechanism, a connecting rod mechanism, a supporting roller (4), an elastic member, and an actuator (10); the label suction mechanism is connected to a first surface of an actuator (10) via an elastic member; the supporting roller (4) is connected to the first surface of the actuator (10) via a connecting rod mechanism; the actuator is used to drive the supporting roller (4) and the label suction mechanism to approach a workpiece and complete labeling. The present invention provides a labeling head of a labeling machine, which solves the technical problem of difficulty in labeling on a curved surface.

Description

Technical Field

[0001] The invention relates to the field of automatic labeling, in particular to a labeling head of a labeling machine and a labeling method. Background Art

[0002] At present, in the field of automated assembly and packaging, it is usually necessary to label the assembled workpieces and packaging materials to meet the needs of later monitoring and tracking of products. The more mature labeling machines on the market can be mainly divided into round bottle labeling machines and flat labeling machines. During the labeling process of round bottle labeling machines, the label is mainly affixed to the surface of the bottle body by rotating the bottle body. In actual production, it is affected by the workpiece packaging and assembly process, as well as the shape of the workpiece itself. It is necessary to label the local arc interval of the workpiece. In this case, the labeling head of the corresponding labeling machine mostly adopts the form of a sponge suction cup, but due to the influence of the structure of the sponge suction cup itself, the edge of the label is not firmly attached to the workpiece after labeling is completed, and the label is easy to fall off during subsequent transportation. In order to solve the problem of firm adhesion between the edge of the label and the workpiece, the labeling process of the existing equipment is divided into two steps. The first step is to affix the label to the surface of the workpiece, and the second step is to press the label again through the added label pressing mechanism. The work efficiency is low, which affects the subsequent station beat and reduces the production speed. The structure of the equipment is complex, and the entire labeling station occupies a large space and has high cost. Summary of the invention

[0003] In order to solve the above-mentioned deficiencies in the prior art, the present invention provides a labeling head for a labeling machine.

[0004] The technical solution provided by the present invention is: a labeling head of a labeling machine, characterized in that it includes a label suction mechanism, a connecting rod mechanism, a supporting and pressing roller 4, an elastic member, and an actuator 10;

[0005] The label suction mechanism is connected to the first surface of the actuator 10 via an elastic member;

[0006] The supporting roller 4 is connected to the first surface of the actuator 10 through a connecting rod mechanism;

[0007] The actuator is used to drive the supporting and pressing roller 4 and the label suction mechanism to approach the workpiece and complete labeling.

[0008] Preferably, the connecting rod mechanism comprises: a swing rod 3, a connecting rod fixing seat 5 and a pin 11;

[0009] The connecting rod fixing seat 5 is fixedly connected to the actuator 10;

[0010] One end of the swing rod 3 is rotatably connected to the connecting rod fixing seat 5, and the other end is fixed with a pin 11;

[0011] The supporting roller 4 is rotatably connected to the swing rod 3 via the pin shaft 11 .

[0012] Preferably, the supporting and pressing rollers 4 and the connecting rod mechanism are both in two sets, which are symmetrically installed at the two ends of the label suction mechanism.

[0013] Preferably, the labeling head further comprises a tension spring 12, wherein the tension spring 12 is installed between the two swinging rods 3 and is used to retract the swinging rods 3 so that the supporting and pressing rollers 4 fit the curved surface.

[0014] Preferably, the label suction mechanism comprises a label suction plate 1 and a connecting seat 2 which are connected to each other;

[0015] The label suction plate 1 is fixed on the first surface of the connecting seat 2 .

[0016] Preferably, the elastic member is a compression spring 6 .

[0017] Preferably, the labeling head further comprises a guide post 7 and a fixing plate 8;

[0018] The guide column 7 passes through the fixing plate 8 , and the compression spring 6 is arranged between the connecting seat 2 and the fixing plate 8 and passes through the guide column 7 ; the compression spring 6 can make the guide column 7 move along the axial direction.

[0019] Preferably, the compression spring 6 is distributed symmetrically with respect to the vertical center line of the fixing plate (8);

[0020] Preferably, the compression springs 6 and guide posts 7 are provided in four groups;

[0021] The compression spring 6 and the guide column 7 are symmetrically installed at the upper and lower ends of the fixing plate 8 .

[0022] Preferably, the labeling method of the labeling head according to any one of claims 1 to 8 is characterized by comprising:

[0023] The execution device 10 drives the label suction mechanism to absorb the label;

[0024] The actuator 10 drives the label suction mechanism and the connecting rod mechanism to approach the workpiece so that the label contacts the surface of the workpiece;

[0025] The actuator 10 drives the connecting rod mechanism to continue to move forward, the elastic member contracts, and the connecting rod mechanism is driven by the actuator 10 to push the supporting and pressing rod 4 out and close to the workpiece, and the supporting and pressing rod 4 closes the edge of the label to the arc surface of the workpiece.

[0026] Preferably, the connecting rod mechanism pushes the supporting and pressing rod 4 out and closes it to the workpiece under the drive of the actuator 10, and the supporting and pressing rod 4 closes the edge of the label to the arc surface of the workpiece, including:

[0027] The connecting rod fixing seat 5 of the connecting rod mechanism is driven by the execution device 10 to push the supporting and pressing stick 4 over the label suction mechanism and continue to push forward;

[0028] The swing rod 3, one end of which is rotatably connected to the connecting rod fixing seat 5, is pushed outward by the arc surface of the workpiece, so that the supporting and pressing stick 4, which is rotatably connected through the pin shaft 11 at the other end of the swing rod 3, is close to the arc surface of the workpiece;

[0029] The elastic member contracts to tightly fit the edge of the label against the arc-shaped surface of the workpiece.

[0030] Moreover, compared with the closest prior art, the present application also has the following beneficial effects:

[0031] 1. The present invention provides a labeling head of a labeling machine, which is characterized by comprising a label suction mechanism, a connecting rod mechanism, a supporting roller 4, an elastic member, and an actuator 10; the label suction mechanism is connected to the first surface of the actuator 10 through the elastic member; the supporting roller 4 is connected to the first surface of the actuator 10 through the connecting rod mechanism; the actuator is used to drive the supporting roller 4 and the label suction mechanism to approach the workpiece and complete labeling. The present invention provides a labeling head of a labeling machine, which solves the technical problem of difficult arc surface labeling.

[0032] 2. The present invention provides a labeling method for a labeling head, comprising: the actuator 10 drives the label suction mechanism to absorb the label; the actuator 10 drives the label suction mechanism and the connecting rod mechanism to approach the workpiece so that the label contacts the surface of the workpiece; the actuator 10 drives the connecting rod mechanism to continue to move forward, the elastic member contracts, and the connecting rod mechanism is driven by the actuator 10 to push the supporting and pressing rod 4 out and close to the workpiece, and the supporting and pressing rod 4 presses the edge of the label against the arc surface of the workpiece. This method makes the label tightly attached to the surface of the workpiece and is not easy to fall off.

[0033] 3. The present invention provides a labeling head of a labeling machine, which combines a connecting rod mechanism and a label suction and labeling mechanism into one. The overall structure is very compact, occupies a small space, has low cost and strong applicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0035] Figure 2 It is a front view structural schematic diagram of the present invention;

[0036] Figure 3 It is a schematic diagram of the top view structure of the present invention;

[0037] Among them: 1. suction plate; 2. connecting seat; 3. swing rod; 4. supporting roller; 5. connecting rod fixing seat; 6. compression spring; 7. guide column; 8. fixing plate; 9. air pipe joint; 10. actuator; 11. pin shaft; 12. tension spring. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0039] In the description of the present invention, unless otherwise specified, "plurality" means two or more than two; the orientations or positional relationships indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0040] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" 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. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0041] Embodiment 1:

[0042] See also Figures 1 to 3 The present invention provides a technical solution: a labeling head of a labeling machine, comprising a label suction mechanism, a connecting rod mechanism, a supporting roller 4, an elastic member, and an actuator 10; the label suction mechanism is connected to the first surface of the actuator 10 through the elastic member; the supporting roller 4 is connected to the first surface of the actuator 10 through the connecting rod mechanism; the actuator is used to drive the supporting roller 4 and the label suction mechanism to approach the workpiece and complete labeling, and the connecting rod mechanism comprises: a swing rod 3, a connecting rod fixing seat 5 and a pin 11; one end of the swing rod 3 is connected to the connecting rod fixing seat 5 and can rotate, and the other end is fixed with a pin 11; the supporting roller 4 is connected to the pin 11, and the supporting roller 4 can rotate freely. The supporting roller 4 and the connecting rod mechanism are both two sets, which are respectively installed at the two ends of the label suction mechanism and are symmetrically distributed. The labeling head also includes a stretching spring 12, which is installed between the two swing rods 3. In addition, the label suction mechanism is a label suction plate 1 and a connecting seat 2; the label suction plate 1 is fixed on one side of the connecting seat 2;

[0043] The labeling head also includes a guide column 7 and a fixed plate 8; the guide column 7 passes through the fixed plate 8, and the elastic member can move along the axial direction of the guide column 7. The elastic member is specifically a compression spring 6, which is arranged between the connecting seat 2 and the fixed plate 8 and passes through the guide column 7. The connecting seat 2 forms an elastic structure with the fixed plate 8 through the compression spring 6; the compression spring 6 is symmetrically distributed about the vertical center line of the fixed plate 8, and specifically, the compression spring 6 and the guide column 7 are provided with four groups in total. When the connecting seat 2 contacts with an external object, at this time, the connecting seat 2 squeezes the compression spring 6 along the central axis direction of the guide column 7. The compression spring 6 can effectively buffer the force applied to the labeling head by the object, which can effectively ensure the smooth operation of the labeling head. At the same time, the guide column 7 can effectively limit the moving direction of the connecting seat 2 and limit the movable range of the connecting seat 2;

[0044] A connecting seat 2 is installed at the front end of the compression spring 6, and a label suction plate 1 is installed at the front end of the connecting seat 2. The label suction plate 1 is parallel to the vertical center line of the connecting seat 2, and the cross section of the connecting seat 2 is set to a "T"-shaped structure, and the horizontal side of the "T"-shaped structure is fixedly connected to the air pipe joint 9. The label suction plate 1 can ensure the flatness of the outer surface of the label, and can effectively prevent the label from wrinkling during the operation of the labeling head. The connecting seat 2 can effectively provide a stable fixed position for the installation of the label suction plate 1, so that the label suction plate 1 can perform effective work, and the air pipe joint 9 is located on one side of the connecting seat 2;

[0045] The connecting rod mechanism includes a connecting rod swing rod 3, a supporting roller 4, a connecting rod fixing seat 5, a pin 11 and a tension spring 12. The front end of the connecting rod fixing seat 5 is equipped with a swing rod 3, and the front end of the swing rod 3 is equipped with a supporting roller 4. The swing rod 3 and the connecting rod fixing seat 5 are pin-connected. The inside of the supporting roller 4 is provided with a pin 11. The swing rod 3 and the supporting roller 4 are rotating structures through the pin 11. In this embodiment, two groups of supporting rollers 4 are provided. When the compression spring 6 is squeezed, one end of the swing rod 3 rotates along the outside of the pin 11, and the other end is pin-connected with the connecting rod fixing seat 5, so as not to hinder the work of the labeling head.

[0046] A tension spring 12 is installed between the swing arms 3. The tension spring 12 forms an elastic structure between the swing arms 3, and the swing arms 3 are symmetrically distributed about the vertical center line of the fixed plate 8. When the swing arms 3 are squeezed and approach each other, the swing arms 3 compress the tension spring 12, and the supporting roller 4 can rotate to press the two ends of the label on the surface of the curved workpiece to complete the labeling action. After the labeling head completes the work, the tension spring 12 can restore the swing arm 3 to its initial position.

[0047] Embodiment 2:

[0048] When the labeling head of the labeling machine is used, the actuator 10 drives the label suction mechanism to absorb the label;

[0049] The actuator 10 drives the label suction mechanism and the connecting rod mechanism to approach the workpiece so that the label contacts the surface of the workpiece;

[0050] The actuator 10 drives the connecting rod mechanism to continue to move forward, the elastic member contracts, and the connecting rod mechanism is driven by the actuator 10 to push the supporting and pressing rod 4 out and close to the workpiece, and the supporting and pressing rod 4 closes the edge of the label to the arc surface of the workpiece.

[0051] And the connecting rod mechanism, driven by the actuator 10, pushes the supporting and pressing rod 4 out and closes it to the workpiece, and the supporting and pressing rod 4 closes the edge of the label to the arc surface of the workpiece, including:

[0052] The connecting rod fixing seat 5 of the connecting rod mechanism is driven by the execution device 10 to push the supporting and pressing stick 4 over the label suction mechanism and continue to push forward;

[0053] The swing rod 3, one end of which is rotatably connected to the connecting rod fixing seat 5, is pushed outward by the arc surface of the workpiece, so that the supporting and pressing stick 4, which is rotatably connected through the pin shaft 11 at the other end of the swing rod 3, is close to the arc surface of the workpiece;

[0054] The elastic member contracts to tightly fit the edge of the label against the arc-shaped surface of the workpiece.

[0055] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent substitution, improvement, etc. made within the spirit and principle of the present invention are included in the scope of the claims of the present invention to be approved.

Claims

1. A labeling head for a labeling machine, characterized in that: It comprises a label suction mechanism, a connecting rod mechanism, a supporting roller (4), an elastic member, and an actuator (10); The label suction mechanism is connected to the first surface of the execution device (10) via an elastic member; The supporting roller (4) is connected to the first surface of the actuator (10) via a connecting rod mechanism; The actuator is used to drive the supporting and pressing roller (4) and the label suction mechanism to approach the workpiece and complete labeling; The connecting rod mechanism comprises: a swing rod (3), a connecting rod fixing seat (5) and a pin shaft (11); The connecting rod fixing seat (5) is fixedly connected to the actuator (10); One end of the swing rod (3) is rotatably connected to the connecting rod fixing seat (5), and the other end is fixed with a pin shaft (11); The supporting roller (4) is rotatably connected to the swing rod (3) via the pin shaft (11); The supporting and pressing rollers (4) and the connecting rod mechanism are both in two sets and are symmetrically mounted at the two ends of the label suction mechanism; The labeling head further comprises a tension spring (12), wherein the tension spring (12) is installed between the two swinging rods (3) and is used to retract the swinging rods (3) so that the supporting roller (4) fits the curved surface; The elastic member is a compression spring (6); The labeling head also includes a guide column (7) and a fixing plate (8); The guide column (7) passes through the fixing plate (8), and the compression spring (6) is arranged between the connecting seat (2) and the fixing plate (8) and passes through the guide column (7); The compression spring (6) can move the guide column (7) along the axial direction.

2. The labeling head of a labeling machine according to claim 1, characterized in that: The label suction mechanism comprises a label suction plate (1) and a connecting seat (2) which are connected to each other; The label suction plate (1) is fixed on the first surface of the connecting seat (2).

3. The labeling head of a labeling machine according to claim 1, characterized in that: The compression spring (6) is symmetrically arranged about the vertical center line of the fixing plate (8); The compression springs (6) and guide posts (7) are provided in four groups in total; Furthermore, the compression spring (6) and the guide column (7) are symmetrically mounted on the upper and lower ends of the fixing plate (8).

4. A labeling method using a labeling head according to any one of claims 1 to 3, characterized in that: include: The execution device (10) drives the label suction mechanism to absorb the label; The execution device (10) drives the label suction mechanism and the connecting rod mechanism to approach the workpiece so that the label contacts the surface of the workpiece; The actuator (10) drives the connecting rod mechanism to continue to move forward, the elastic member contracts, and the connecting rod mechanism, driven by the actuator (10), pushes the supporting and pressing rod (4) out and presses it against the workpiece, and the supporting and pressing rod (4) presses the edge of the label against the arc surface of the workpiece.

5. The labeling method according to claim 4, characterized in that: The connecting rod mechanism, driven by the actuator (10), pushes the supporting and pressing rod (4) out and presses it against the workpiece, and the supporting and pressing rod (4) presses the edge of the label against the arc surface of the workpiece, including: The connecting rod fixing seat (5) of the connecting rod mechanism is driven by the execution device (10) to push the supporting and pressing rod (4) over the label suction mechanism and continue to push forward; A swing rod (3) rotatably connected to a connecting rod fixing seat (5) at one end is pushed outward by the arc surface of the workpiece, so that a supporting and pressing rod (4) rotatably connected via a pin shaft (11) at the other end of the swing rod (3) is closely attached to the arc surface of the workpiece; The elastic member contracts to tightly fit the edge of the label against the arc-shaped surface of the workpiece.

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