Elastic label suction head of labeling machine

Abstract

The utility model provides an elastic label suction head of a labeling machine, and relates to the technical field of label suction heads. According to the label suction head, the elastic buffering function is achieved by arranging a reset spring between an assembly block and a pressing block, labels and packages are effectively prevented from being damaged in the labeling process, the label suction and pasting stability is improved, and through the design that a first ventilation notch in the bottom face of a pressing plate communicates with a second ventilation notch in the side face, the label suction efficiency is improved. And air between the label and the pressing plate can be discharged easily, and the label suction stability of the label suction head is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of label suction heads, in particular to an elastic label suction head for a labeling machine. Background Art

[0002] On the cigarette sorting line, after the cigarettes are sorted and packaged, they need to be labeled. With the popularization of automation, traditional manual labeling has been gradually replaced by automatic labeling machines.

[0003] Our automatic labeling machines operate by utilizing a motor to drive the labeling head, coupled with a vacuum mechanism to provide suction at the appropriate time, thereby removing the label from the backing paper and applying it to the packaging. Specifically, the following steps are performed: As the label roll, held taut on the labeling machine, changes direction as the backing paper presses against the peel plate. Due to the inherent rigidity of the label material, the front end of the label is forced to peel from the backing paper and move beneath the labeling head. The labeling head then grasps the label and moves downward, aligning with the movement of the label roll, completely peeling the label from the backing paper and pressing it against the packaging, completing the labeling process. The labeling head then releases suction and moves upward to reset, preparing for the next labeling operation.

[0004] However, the current label suction head does not have an elastic buffering function, and the label and packaging are easily damaged during the labeling process. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides an elastic label suction head for a labeling machine, which solves the problem that the label suction head is prone to damage the label and the package during the labeling process.

[0006] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0007] An elastic label suction head for a labeling machine, comprising, from top to bottom, an assembly block, a pressing block and a pressing plate;

[0008] The assembly block is connected to the output shaft of the motor, and the motor is used to drive the assembly block to move up and down; a connecting block and a limit block are sequentially arranged below the assembly block;

[0009] A buffer cavity and a negative pressure cavity are provided in the pressing block;

[0010] The assembly block is inserted into the buffer cavity through the connecting block and connected to the limit block. The limit block is restricted to slide freely up and down in the buffer cavity. A plurality of return springs are provided between the bottom surface of the limit block and the bottom wall of the buffer cavity.

[0011] The side of the pressing block is provided with an air pipe interface, and the bottom surface of the pressing block is provided with a negative pressure tube; the air pipe interface and the negative pressure tube are both connected to the negative pressure chamber, the air pipe interface is connected to the air pipe of the negative pressure machine, the negative pressure tube passes through the pressing plate, and the bottom end of the negative pressure tube is flush with the bottom surface of the pressing plate;

[0012] A ventilation cavity is provided in the pressing plate, a plurality of first ventilation gaps are provided on the bottom surface of the pressing plate, a second ventilation gap is provided on the side surface of the pressing plate, and the first ventilation gaps are connected with the second ventilation gaps through the ventilation cavity.

[0013] Preferably, a stud is provided on the top surface of the assembly block, a nut is sleeved on the output shaft, and a limit plate is connected to the bottom end of the output shaft. The limit plate is used to prevent the nut from falling off from the bottom end of the output shaft, and the nut is threadedly connected to the stud.

[0014] Preferably, a plurality of guide rods are provided between the assembly block and the motor, and the guide rods are used to guide the moving direction of the assembly block.

[0015] Preferably, a plurality of assembly holes are provided on the assembly block, and a limiting ring is fixed in the assembly hole; the guide rod is inserted into the assembly hole from above, and the first bolt is inserted into the assembly hole from below, and the screw rod of the first bolt passes through the limiting ring and is threadedly connected to the threaded hole opened at the lower end of the guide rod.

[0016] Preferably, an L-shaped plate is mounted on the assembly block, and the free end of the L-shaped plate extends downward to limit the downward pressure buffering process of the assembly block relative to the pressing block.

[0017] Preferably, the horizontal section of the L-shaped plate is provided with a mounting hole and a clearance hole, the second bolt passes through the mounting hole and is threadedly connected to the threaded hole provided on the assembly block, and the clearance hole is for the stud to pass through.

[0018] Preferably, a bracket is installed on the side of the assembly block, the bracket is connected to the limiting channel, the air pipe of the negative pressure machine is accommodated in the limiting channel, and the limiting channel is used to limit the position of the air pipe of the negative pressure machine.

[0019] Preferably, the upstream end of the bottom surface of the pressure plate is rounded.

[0020] The utility model provides a flexible label suction head for a labeling machine. Compared with the existing technology, it has the following features:

[0021] Beneficial effects:

[0022] In the present invention, the label suction head realizes an elastic buffering function by arranging a return spring between the assembly block and the pressing block, which effectively prevents damage to the label and packaging during the labeling process and improves the stability of label suction and pasting. In addition, the design of the first ventilation gap on the bottom surface of the pressing plate and the second ventilation gap on the side are connected, which is conducive to the discharge of air between the label and the pressing plate, and improves the stability of the label suction head on the label. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0024] Figure 1 This is a schematic diagram of the internal structure of the label nozzle in the embodiment of the present utility model;

[0025] Figure 2 This is a top axonometric view of the assembly of the label suction head, the output shaft and the guide rod in the embodiment of the present utility model;

[0026] Figure 3 This is a bottom-view isometric drawing of the assembly of the label suction head, the output shaft, and the guide rod in the embodiment of the present utility model;

[0027] Figure 4 This is a top axonometric view of the label suction head in an embodiment of the present invention;

[0028] The figure is marked with the following symbols: output shaft 01, nut 02, limit plate 03, guide rod 04, first bolt 05, assembly block 10, connecting block 11, limit block 12, return spring 13, stud 14, assembly hole 15, limit ring 16, L-shaped plate 17, second bolt 18, bracket 19, pressure block 20, buffer chamber 21, negative pressure chamber 22, trachea interface 23, negative pressure tube 24, pressure plate 30, ventilation chamber 31, first ventilation gap 32, second ventilation gap 33. DETAILED DESCRIPTION

[0029] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention are clearly and completely described. 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 making creative efforts are within the scope of protection of the present invention.

[0030] The embodiment of the present application solves the problem that the label suction head is prone to damaging the label and packaging during the labeling process by providing an elastic label suction head for a labeling machine.

[0031] In order to better understand the above technical solution, the above technical solution will be described in detail below with reference to the accompanying drawings and specific implementation methods.

[0032] Example:

[0033] like Figures 1 to 4As shown, the utility model provides an elastic label suction head for a labeling machine, which comprises, from top to bottom, an assembly block 10, a pressing block 20 and a pressing plate 30;

[0034] The assembly block 10 is connected to the output shaft 01 of the motor, and the motor is used to drive the assembly block 10 to move up and down; a connecting block 11 and a limit block 12 are sequentially arranged below the assembly block 10;

[0035] The pressure block 20 is provided with a buffer chamber 21 and a negative pressure chamber 22;

[0036] The assembly block 10 is inserted into the buffer cavity 21 through the connecting block 11 and connected to the limit block 12. The limit block 12 is restricted to slide freely up and down in the buffer cavity 21. A plurality of return springs 13 are provided between the bottom surface of the limit block 12 and the bottom wall of the buffer cavity 21.

[0037] The side of the pressing block 20 is provided with an air pipe interface 23, and the bottom surface of the pressing block 20 is provided with a negative pressure pipe 24; the air pipe interface 23 and the negative pressure pipe 24 are both connected to the negative pressure chamber 22, the air pipe interface 23 is connected to the air pipe of the negative pressure machine, and the negative pressure pipe 24 passes through the pressing plate 30, and the bottom end of the negative pressure pipe 24 is flush with the bottom surface of the pressing plate 30;

[0038] A ventilation cavity 31 is defined in the pressing plate 30 . A plurality of first ventilation notches 32 are defined on the bottom surface of the pressing plate 30 . Second ventilation notches 33 are defined on the side surface of the pressing plate 30 . The first ventilation notches 32 and the second ventilation notches 33 are connected through the ventilation cavity 31 .

[0039] like Figures 1 to 4 As shown, a stud 14 is provided on the top surface of the assembly block 10, a nut 02 is sleeved on the output shaft 01, and the bottom end of the output shaft 01 is connected to a limit plate 03, which is used to prevent the nut 02 from falling off from the bottom end of the output shaft 01. The nut 02 is threadedly connected to the stud 14 to realize the connection between the assembly block 10 and the output shaft 01.

[0040] like Figures 1 to 3 As shown, a plurality of guide rods 04 are provided between the assembly block 10 and the motor. The guide rods 04 are used to guide the movement direction of the assembly block 10 and improve the movement stability of the assembly block 10 .

[0041] like Figures 1 to 4 As shown, a plurality of assembly holes 15 are provided on the assembly block 10, and a limiting ring 16 is fixed in the assembly hole 15; the guide rod 04 is inserted into the assembly hole 15 from above, and the first bolt 05 is inserted into the assembly hole 15 from below, and the screw of the first bolt 05 passes through the limiting ring 16 and is threadedly connected to the threaded hole provided at the lower end of the guide rod 04, thereby realizing the connection between the assembly block 10 and the guide rod 04.

[0042] like Figures 1 to 4As shown, an L-shaped plate 17 is installed on the assembly block 10, and the free end of the L-shaped plate 17 extends downward to limit the downward pressure buffering process of the assembly block 10 relative to the pressure block 20, prevent the return spring 13 from being over-compressed and affecting its service life, and press the label affixed to the package to improve the firmness of the label.

[0043] like Figures 1 to 4 As shown, the horizontal section of the L-shaped plate 17 is provided with a mounting hole and a clearance hole, and the second bolt 18 passes through the mounting hole and is threadedly connected to the threaded hole opened on the assembly block 10 to realize the connection between the L-shaped plate 17 and the assembly block 10. The clearance hole is for the stud 14 to pass through to prevent the stud 14 from affecting the installation of the L-shaped plate 17.

[0044] like Figures 1 to 4 As shown, a bracket 19 is installed on the side of the assembly block 10, and the bracket 19 is connected to the limiting channel. The negative pressure machine air pipe is accommodated in the limiting channel. The limiting channel is used to limit the position of the negative pressure machine air pipe to prevent the negative pressure machine air pipe from moving below the label suction head during the upward movement of the label suction head, causing damage to the negative pressure machine air pipe when the label suction head moves downward.

[0045] like Figures 1 to 4 As shown, the upstream end of the bottom surface of the pressing plate 30 is rounded to prevent the sharp corners of the pressing plate 30 from damaging the label.

[0046] In summary, compared with the prior art, the present invention has the following beneficial effects:

[0047] In the embodiment of the present invention, the label suction head realizes an elastic buffering function by arranging a return spring 13 between the assembly block 10 and the pressing block 20, which effectively prevents damage to the label and packaging during the labeling process and improves the stability of label suction and pasting. In addition, the design of connecting the first ventilation gap 32 on the bottom surface of the pressing plate 30 with the second ventilation gap 33 on the side is conducive to the discharge of air between the label and the pressing plate 30, thereby improving the label suction stability of the label suction head.

[0048] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply the existence of any such actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or device comprising the element.

[0049] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments can still be modified, or some of the technical features thereof can be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A flexible label suction head for a labeling machine, characterized in that: The label suction head comprises, from top to bottom, an assembly block (10), a pressing block (20) and a pressing plate (30); The assembly block (10) is connected to the output shaft (01) of the motor, and the motor is used to drive the assembly block (10) to move up and down; a connecting block (11) and a limiting block (12) are sequentially arranged below the assembly block (10); A buffer chamber (21) and a negative pressure chamber (22) are provided in the pressing block (20); The assembly block (10) is inserted into the buffer cavity (21) through the connecting block (11) and then connected to the limiting block (12). The limiting block (12) is restricted in the buffer cavity (21) to slide freely up and down. A plurality of return springs (13) are provided between the bottom surface of the limiting block (12) and the bottom wall of the buffer cavity (21). The side of the pressing block (20) is provided with an air pipe interface (23), and the bottom surface of the pressing block (20) is provided with a negative pressure pipe (24); the air pipe interface (23) and the negative pressure pipe (24) are both connected to the negative pressure chamber (22), the air pipe interface (23) is connected to the air pipe of the negative pressure machine, the negative pressure pipe (24) passes through the pressing plate (30), and the bottom end of the negative pressure pipe (24) is flush with the bottom surface of the pressing plate (30); A ventilation cavity (31) is provided in the pressing plate (30), a plurality of first ventilation notches (32) are provided on the bottom surface of the pressing plate (30), a second ventilation notch (33) is provided on the side surface of the pressing plate (30), and the first ventilation notches (32) and the second ventilation notches (33) are communicated through the ventilation cavity (31).

2. The elastic label suction head of the labeling machine according to claim 1, characterized in that: The top surface of the assembly block (10) is provided with a stud (14), a nut (02) is sleeved on the output shaft (01), the bottom end of the output shaft (01) is connected to a limiting plate (03), the limiting plate (03) is used to prevent the nut (02) from falling off from the bottom end of the output shaft (01), and the nut (02) is threadedly connected to the stud (14).

3. The elastic label suction head of the labeling machine according to claim 1, characterized in that: Several guide rods (04) are provided between the assembly block (10) and the motor, and the guide rods (04) are used to guide the moving direction of the assembly block (10).

4. The elastic label suction head of the labeling machine according to claim 3, characterized in that: The assembly block (10) is provided with a plurality of assembly holes (15), and a limiting ring (16) is fixed in each assembly hole (15); the guide rod (04) is inserted into the assembly hole (15) from above, and the first bolt (05) is inserted into the assembly hole (15) from below, and the screw rod of the first bolt (05) passes through the limiting ring (16) and is threadedly connected to the threaded hole provided at the lower end of the guide rod (04).

5. The elastic label suction head of the labeling machine according to claim 2, characterized in that: An L-shaped plate (17) is mounted on the assembly block (10), and the free end of the L-shaped plate (17) extends downwards to limit the downward pressure buffering process of the assembly block (10) relative to the pressing block (20).

6. The elastic label suction head for a labeling machine according to claim 5, characterized in that: The horizontal section of the L-shaped plate (17) is provided with a mounting hole and a clearance hole. The second bolt (18) passes through the mounting hole and is threadedly connected to the threaded hole provided on the assembly block (10). The clearance hole is provided for the stud (14) to pass through.

7. The elastic label suction head for a labeling machine according to claim 1, characterized in that: A bracket (19) is installed on the side of the assembly block (10), and the bracket (19) is connected to the limiting channel. The air pipe of the negative pressure machine is accommodated in the limiting channel, and the limiting channel is used to limit the position of the air pipe of the negative pressure machine.

8. The elastic label suction head for a labeling machine according to claim 1, characterized in that: The upstream end of the bottom surface of the pressure plate (30) is rounded.

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