Main machine head label roll tensioning mechanism

Abstract

The utility model discloses a main machine head label roll tensioning mechanism, and particularly relates to the technical field of label roll tensioning mechanisms, the main machine head label roll tensioning mechanism comprises a label supply wheel, a taper wheel is arranged in the label supply wheel in a sliding mode, a plurality of tensioning blocks are arranged on the outer wall of the taper wheel, and a plurality of penetrating holes matched with the tensioning blocks are formed in the surface of the outer wall of the label supply wheel. The multiple tensioning blocks are arranged in the multiple penetrating holes correspondingly, a mounting cavity is formed in the top of the taper wheel, two vertically-distributed annular plates are arranged in the mounting cavity in a sliding mode, a spring is connected between the two annular plates, and a rotary knob penetrates through the top of the label supply wheel. The main machine head label roll and the label collecting roll are supported, label releasing and label collecting are simple, easy, safe and efficient, potential safety hazards are eradicated, the replacement time of the main machine head label roll and the label collecting roll is shortened to a great extent, green operators can operate, the working efficiency of labeling equipment is improved, and the labor intensity of workers is reduced. And the device has great significance for improving the efficiency of equipment in the labeling industry.

Description

Technical Field

[0001] The utility model relates to the technical field of label roll tensioning mechanisms, and more specifically to a label roll tensioning mechanism for a main machine head. Background Art

[0002] A labeling machine is an electric device that pastes rolls of self-adhesive paper labels (paper or metal foil) onto carriers. The labeling machine greatly reduces the manual output of the packaging process, and even many labeling machines have achieved full automation or semi-automation, greatly improving production efficiency, and playing a positive role in promoting high-efficiency output in modern processing industries. Existing labeling machines can only traction and peel printed labels, and cannot make timely adjustments when the label content needs to be changed. At the same time, the label tape is prone to slack or tension during traction, so a tensioning mechanism needs to be set up to install the label roll and the label receiving roll.

[0003] However, most of the existing tensioning mechanisms on the market are in the form of two upper and lower parts that hold the label roll. The lower part plays a positioning role, and the upper part is made into a wedge-shaped pressing block. After pressing the label roll core, the pressing block is locked with a fastening handle. The process of replacing and installing the label roll each time is as follows: first loosen the fastening handle, remove the pressing block, take out the old label roll core, put in a new label roll, then place the pressing block, lock the fixing handle, and connect the new and old labels;

[0004] The fixed label receiving roll tensioning mechanism usually consists of a stainless steel pressing strip and a roll paper shaft pressed and matched. When replacing the label receiving roll, it is necessary to first pull out the pressing strip forcefully, take out the label roll, wind the blank label tightly on the roll paper shaft, and then align the pressing strip with the pressing hole to press the label for receiving. The processes of placing and receiving labels are relatively cumbersome, which greatly increases the time for replacing the label roll. Based on this, the utility model provides a label roll tensioning mechanism for a main machine head that is convenient for placing and receiving labels. Summary of the Utility Model

[0005] In order to overcome the above-mentioned defects of the prior art, the utility model provides a label roll tensioning mechanism for a main machine head, which is simple, easy, safe, and efficient for both label placing and receiving, eliminates potential safety hazards, and greatly improves the replacement time of the label roll and the label receiving roll of the main machine head. Novice operators can operate it, improving the working efficiency of the labeling equipment, and having great significance for improving the equipment efficiency of the labeling industry, so as to solve the problems that appear in the above-mentioned background art.

[0006] To achieve the above object, the present utility model provides the following technical solution: A tensioning mechanism for the host head label roll, including a label supply wheel, inside which a tapered wheel is slidably arranged. A plurality of tensioning blocks are arranged on the outer wall of the tapered wheel, and a plurality of through holes adapted to the tensioning blocks are formed on the outer wall surface of the label supply wheel. The plurality of tensioning blocks are respectively arranged in the plurality of through holes. An installation cavity is formed at the top of the tapered wheel, and two annular plates distributed up and down are slidably arranged inside the installation cavity. A spring is connected between the two annular plates. A knob penetrates through the top of the label supply wheel, and a fixing rod is fixedly arranged at the bottom end of the knob. The bottom end of the fixing rod sequentially penetrates through the installation cavity, the two annular plates and the spring. The annular plate near the lower part of the installation cavity is fixedly sleeved on the fixing rod. Two O-rings distributed up and down are sleeved on the outer walls of the plurality of tensioning blocks.

[0007] In a preferred embodiment, a positioning pin is threadedly connected inside the fixing rod, and an arc-shaped groove is formed on the outer wall of the label supply wheel. The positioning pin penetrates through the arc-shaped groove, and by cooperating the positioning pin with the arc-shaped groove, the knob can be fixed in this way.

[0008] In a preferred embodiment, a first groove is formed on the outer wall surface of each of the plurality of tensioning blocks, and a plurality of second grooves adapted to the first grooves are formed on the outer wall of the label supply wheel. The O-rings are arranged in the plurality of first grooves and the plurality of second grooves. By using the O-rings to play a limiting role on the outside of the tensioning blocks, the tensioning blocks can be automatically retracted by means of the elastic force of the O-rings.

[0009] In a preferred embodiment, the installation cavity is composed of a first round hole, a second round hole and a third round hole distributed up and down. The diameters of the first round hole, the second round hole and the third round hole increase in sequence. Both of the two annular plates are slidably arranged inside the second round hole. The top of the annular plate near the knob contacts the inner wall of the top of the second round hole. By cooperating the annular plates with the spring, the connection between the fixing rod and the tapered wheel can be realized.

[0010] In a preferred embodiment, anti-slip threads are processed on the outer wall surface of the knob, and an installation groove is formed at the bottom end of the knob. The fixing rod is fixed in the installation groove. By arranging the anti-slip threads on the outer wall of the knob, the anti-slip property of the knob can be improved in this way.

[0011] In a preferred embodiment, a sealing plate is inserted into the top of the label supply wheel, and the sealing plate is sleeved on the outside of the knob. By arranging the sealing plate at the top of the label supply wheel and sleeving the sealing plate on the knob at the same time, a sealing effect can be achieved at the top of the label supply wheel in this way.

[0012] The technical effects and advantages of the present utility model:

[0013] The utility model supports the label roll of the main machine head and the label receiving roll. Whether it is label feeding or label receiving, it is simple, easy, safe and efficient, eliminating potential safety hazards, and greatly improving the replacement time of the label roll and the label receiving roll of the main machine head. Even novice operators can operate it, improving the working efficiency of the labeling equipment, which is of great significance to the improvement of the equipment efficiency in the labeling industry. Brief Description of the Drawings

[0014] Figure 1 is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 is a sectional view of the natural state of the overall structure of the utility model;

[0016] Figure 3 is a sectional view of the tensioned state of the overall structure of the utility model;

[0017] Figure 4 is a diagram of the label supply and receiving system applied to the main machine head of the labeling equipment of the utility model.

[0018] The reference numerals in the drawings are: 1. Sealing plate; 2. Tapered wheel; 3. Tensioning block; 4. Perforation; 5. Installation cavity; 6. Ring plate; 7. Spring; 8. Knob; 9. Fixed rod; 10. O-ring; 11. Positioning pin; 12. Arc groove; 13. Groove 1; 14. Groove 2; 15. Installation groove; 16. Sealing plate;

[0019] 501. Round hole 1; 502. Round hole 2; 503. Round hole 3. Detailed Embodiment

[0020] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0021] Referring to the attached drawings of the specification Figures 1-4 , the present utility model provides a tensioning mechanism for the label roll of the main machine head, including a label supply wheel 1. A tapered wheel 2 is slidably arranged inside the label supply wheel 1. A plurality of tensioning blocks 3 are arranged on the outer wall of the tapered wheel 2. A plurality of perforations 4 adapted to the tensioning blocks 3 are formed on the outer wall surface of the label supply wheel 1, and the plurality of tensioning blocks 3 are respectively arranged in the plurality of perforations 4;

[0022] The top of the tapered wheel 2 is provided with an installation cavity 5. Specifically, the installation cavity 5 is composed of a first round hole 501, a second round hole 502, and a third round hole 503 which are distributed up and down. The diameters of the first round hole 501, the second round hole 502, and the third round hole 503 increase in sequence. Both annular plates 6 are slidably arranged inside the second round hole 502. The top of the annular plate 6 close to the knob 8 contacts the inner wall of the top of the second round hole 502. By cooperating the annular plate 6 with the spring 7, the connection between the fixing rod 9 and the tapered wheel 2 can be realized;

[0023] Two annular plates 6 which are distributed up and down are slidably arranged inside the installation cavity 5. A spring 7 is connected between the two annular plates 6. The top of the label supply wheel 1 penetrates through a knob 8. The bottom end of the knob 8 is fixedly provided with a fixing rod 9. The bottom end of the fixing rod 9 sequentially penetrates through the installation cavity 5, the two annular plates 6, and the spring 7. The annular plate 6 close to the lower part of the installation cavity 5 is fixedly sleeved on the fixing rod 9. Two O-rings 10 which are distributed up and down are sleeved on the outer walls of multiple tensioning blocks 3;

[0024] Moreover, a first groove 13 is formed on the outer wall surface of each of the multiple tensioning blocks 3. A plurality of second grooves 14 which are adapted to the first grooves 13 are formed on the outer wall of the label supply wheel 1. It should be noted that the second grooves 14 are arranged in a ring shape. The O-rings 10 are arranged in the multiple first grooves 13 and the multiple second grooves 14. The O-rings 10 play a limiting role on the outside of the tensioning blocks 3, and the tensioning blocks 3 are automatically retracted by means of the elastic force of the O-rings 10;

[0025] Furthermore, a positioning pin 11 is threadedly connected inside the fixing rod 9. An arc-shaped groove 12 is formed on the outer wall of the label supply wheel 1. The positioning pin 11 penetrates through the arc-shaped groove 12. By cooperating the positioning pin 11 with the arc-shaped groove 12, the knob 8 can be fixed accordingly.

[0026] During use, when the positioning pin 11 stays at the A point position of the arc-shaped groove 12 (as Figure 1 shown), at this time, there is no outward pressure on the tapered wheel 2 and the tensioning wheels. Under the action of the O-rings 10, the multiple tensioning wheels contract. In this state, the host head label roll can be easily taken and placed;

[0027] Under the action of the knob 8, when the positioning pin 11 gradually rotates to the B point position of the arc-shaped groove 12 (as Figure 1 shown), during the rotation of the knob 8, the fixing rod 9 is driven to move upward. The fixing rod 9 drives the tapered wheel 2 to gradually move upward through the two annular plates 6. When the tapered wheel 2 moves upward, it extrudes the multiple tensioning blocks 3 outward. The multiple tensioning blocks 3 are tensioned outward. When the tensioning force, the elastic force of the O-rings 10, and the pressure of the host head label roll reach balance, the tapered wheel 2 stops moving upward. Then, continue to rotate the knob 8 to drive the positioning pin 11 to insert into the top of the arc-shaped groove 12 for fixation, and the tapered wheel 2 can be locked to realize the tensioning of the host head label roll;

[0028] The process of tensioning the host head label roll through the above structure is as follows: The knob 8 adjusts the tensioning block 3 to the natural state, takes out the old host head label roll, then puts in the new host head label roll, and then uses the knob 8 to adjust the tensioning block 3 to the tensioned state. Finally, connect the new and old labels.

[0029] Refer to the attached instructions Figures 1-4 The outer wall surface of the knob 8 is processed with anti-slip lines, and an installation groove 15 is opened at the bottom end of the knob 8. The fixing rod 9 is fixed in the installation groove 15. By setting anti-slip lines on the outer wall of the knob 8, the anti-slip property of the knob 8 can be improved.

[0030] A sealing plate 16 is inserted into the top of the label supply wheel 1, and the sealing plate 16 is sleeved on the outer side of the knob 8. By setting the sealing plate 16 at the top of the label supply wheel 1 and sleeving the sealing plate 16 on the knob 8, a sealing effect can be achieved at the top of the label supply wheel 1.

[0031] Finally: The above are only the preferred embodiments of the present invention and are not used to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims

1. A main head label roll tensioning mechanism, comprising a label supply wheel (1), characterized in that: A conical wheel (2) is slidably arranged inside the marking wheel (1), a plurality of tensioning blocks (3) are arranged on the outer wall of the conical wheel (2), a plurality of through holes (4) matching the tensioning blocks (3) are opened on the outer wall surface of the marking wheel (1), and the plurality of tensioning blocks (3) are respectively arranged in the plurality of through holes (4); The tapered wheel (2) is provided with an installation cavity (5) at the top, two ring plates (6) are slidably arranged in the installation cavity (5) and are distributed up and down, a spring (7) is connected between the two ring plates (6), a knob (8) is passed through the top of the marking wheel (1), a fixing rod (9) is fixed at the bottom end of the knob (8), and the bottom end of the fixing rod (9) passes through the installation cavity (5), the two ring plates (6) and the spring (7) in sequence; The ring plate (6) near the bottom of the installation cavity (5) is fixedly sleeved on the fixing rod (9), and the outer walls of the plurality of tensioning blocks (3) are sleeved with two O-rings (10) distributed up and down.

2. The main head label roll tensioning mechanism according to claim 1, characterized in that: The fixing rod (9) is internally threadedly connected with a positioning pin (11), an outer wall of the marking wheel (1) is provided with an arc-shaped groove (12), and the positioning pin (11) passes through the arc-shaped groove (12).

3. The main head label roll tensioning mechanism according to claim 1, characterized in that: The outer wall surfaces of the plurality of tensioning blocks (3) are each provided with a groove one (13); the outer wall of the marking wheel (1) is provided with a plurality of grooves two (14) matched with the groove one (13); and the O-ring (10) is arranged in the plurality of grooves one (13) and the plurality of grooves two (14).

4. The main head label roll tensioning mechanism according to claim 1, characterized in that: The installation cavity (5) is composed of a circular hole 1 (501), a circular hole 2 (502) and a circular hole 3 (503) distributed vertically, wherein the diameters of the circular hole 1 (501), the circular hole 2 (502) and the circular hole 3 (503) are successively enlarged, and two ring plates (6) are slidably arranged inside the circular hole 2 (502), and the top of the ring plate (6) close to the knob (8) contacts the inner wall of the top of the circular hole 2 (502).

5. The main head label roll tensioning mechanism according to claim 1, characterized in that: The outer wall surface of the knob (8) is processed with anti-slip grooves, and the bottom end of the knob (8) is provided with a mounting groove (15), and the fixing rod (9) is fixed in the mounting groove (15).

6. The main head label roll tensioning mechanism according to claim 1, characterized in that: A sealing plate (16) is inserted into the top of the marking wheel (1), and the sealing plate (16) is sleeved on the outside of the knob (8).

Images