Double-layer PETG backing-paper-free hot melt adhesive label equipment and method

Abstract

The invention relates to the technical field of label production and manufacturing, in particular to double-layer PETG backing-paper-free hot melt adhesive label equipment and method, the double-layer PETG backing-paper-free hot melt adhesive label equipment comprises a machine body, an angle adjusting mechanism is arranged on the surface of one side of the machine body, and a quick release mechanism is arranged above the machine body. According to the double-layer PETG backing-paper-free hot melt adhesive label equipment, through the arrangement of the angle adjusting mechanism and the quick detaching mechanism, during use, the quick detaching mechanism can enable a cutter to be quickly replaced, the cutting angle can be quickly adjusted in cooperation with the angle adjusting mechanism, the time for replacing the cutter and adjusting the angle is shortened, and the production efficiency is improved. By means of the angle adjusting mechanism, the equipment can be rapidly put into new production tasks, when labels of different specifications are produced, the angle adjusting mechanism can efficiently switch the cutter and the cutting angle, the downtime is shortened, the production continuity is guaranteed, and the overall production efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of label production and manufacturing, and in particular to a double-layer PETG linerless hot-melt adhesive label device and method. Background Art

[0002] With the continuous improvement of global environmental awareness, the base paper used in traditional label production is difficult to recycle and causes waste of resources, and it is gradually difficult to meet the needs of sustainable development. The base paperless label has become an important direction of industry development by virtue of its advantages of reducing material usage and reducing waste generation. The double-layer PETG base paperless hot melt adhesive label is one of the new labels. PETG material has good transparency, tear resistance, chemical resistance and temperature resistance. The double-layer PETG structure can further enhance the strength and durability of the label, and meet the needs of high-end products for labels to keep clear information and intact appearance in complex environments. The research and development of its production equipment and methods conforms to the trend of environmental protection and efficient utilization of resources. Therefore, a double-layer PETG base paperless hot melt adhesive label equipment and method are particularly needed.

[0003] Traditional double-layer PETG linerless hot-melt adhesive label slitting equipment usually has a fixed tool angle and can only perform conventional straight-line cutting. This greatly limits the shape and specifications of the labels and makes it difficult to meet the market's demand for diversified labels. For example, in some special packaging designs, labels with bevels or specific angles are required to achieve unique visual effects or fit the surface of products with special shapes. Existing equipment cannot complete such cutting tasks, resulting in a significant reduction in the flexibility of product design. At the same time, the tool replacement process of some existing equipment is complicated and time-consuming. Operators need to use a variety of tools to perform tedious disassembly and installation steps, such as unscrewing multiple screws and precise alignment, which seriously affects production efficiency. Summary of the invention

[0004] The object of the present invention is to provide a double-layer PETG linerless hot-melt adhesive label device and method to solve the problem that the traditional double-layer PETG linerless hot-melt adhesive label slitting device proposed in the above background technology has a fixed tool angle and can only perform conventional straight-line cutting, which greatly limits the shape and specification of the label and makes it difficult to meet the market demand for diversified labels. For example, in some special packaging designs, labels with bevels or specific angles are required to achieve unique visual effects or fit the surface of a product with a special shape. The existing equipment cannot complete such cutting tasks, resulting in a significant reduction in the flexibility of product design. At the same time, the tool replacement process of some existing equipment is complicated and time-consuming, and the operator needs to use a variety of tools to perform cumbersome disassembly and installation steps, such as unscrewing multiple screws, precise alignment, etc., which seriously affects the production efficiency.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a double-layer PETG linerless hot-melt adhesive label equipment and method, including a body, a support column is fixedly connected to the lower surface of the body, a support plate is fixedly connected to the upper surface of the body, a control panel is fixedly connected to the one side surface of the body, a reel support arm is fixedly connected to the one side surface of the support plate, a reel shaft is fixedly connected to the one side surface of the reel support arm, a material blocking disk is fixedly connected to the outer side surface of the reel shaft, a positioning guide rail is fixedly connected to the upper surface of the body, a positioning roller is fixedly connected to the one side surface of the positioning guide rail, an adjusting knob is fixedly connected to the one side surface of the body, and a limit screw is fixedly connected to the lower surface of the knob. A traction roller is fixedly connected to one side surface of the limiting screw rod, a feed roller is fixedly connected to one side surface of the machine body, a dust brush roller is fixedly connected to one side surface of the machine body, an angle adjustment mechanism is provided on one side surface of the machine body, a cutting base is provided on the upper surface of the angle adjustment mechanism, a side support plate is fixedly connected to the upper surface of the cutting base, a cross beam is fixedly connected to one side surface of the side support plate, a cylinder is fixedly connected to one side surface of the cross beam, a push plate is fixedly connected to one side surface of the cylinder, a limiting column is fixedly connected to the upper surface of the push plate, a slide groove is provided on one side surface of the side support plate, a knife groove is fixedly connected to the upper surface of the cutting base, and a quick release mechanism is provided on the lower surface of the push plate;

[0006] The angle adjustment mechanism includes a motor, a mounting base plate, a bevel gear, a rotating shaft, an adjusting disk, a scale, an arc guide rail, a slider, a positioning hole, a positioning pin and a connecting plate. The inner surface of the body is fixedly connected to the motor, one side surface of the motor is penetrated and connected to the mounting base plate, one side surface of the motor is fixedly connected to the bevel gear, one side surface of the bevel gear is fixedly connected to the rotating shaft, the outer surface of the rotating shaft is fixedly connected to the adjusting disk, the outer surface of the adjusting disk is fixedly connected to the scale, the upper surface of the adjusting disk is fixedly connected to the arc guide rail, one side surface of the arc guide rail is fixedly connected to the slider, the outer surface of the arc guide rail is provided with a positioning hole, one side surface of the slider is fixedly connected to the positioning pin, and the upper surface of the slider is fixedly connected to the connecting plate.

[0007] Preferably, the support columns are symmetrically arranged in four groups about the central axis of the machine body, and the unwinding support arms are symmetrically arranged in two groups about the central axis of the machine body.

[0008] Preferably, the material blocking discs are symmetrically arranged in two groups around the central axis of the unwinding shaft, and the positioning pressure rollers are symmetrically arranged in two groups around the central axis of the positioning guide rail.

[0009] Preferably, the rotating shaft forms a rotating structure with a motor through a bevel gear, and two groups of sliding blocks are symmetrically arranged around the central axis of the arc-shaped guide rail.

[0010] Preferably, the sliding block is engaged with the positioning holes via positioning pins, and the positioning holes are distributed at equal intervals on the outer wall of the arc-shaped guide rail.

[0011] Preferably, the quick-release mechanism includes a tool mounting seat, a slot, a spring, a cylindrical pin, a male joint, a plug post, a female joint, a guide key and a tool, the lower surface of the push plate is fixedly connected to the tool mounting seat, the inner surface of the tool mounting seat is provided with a slot, one side surface of the slot is fixedly connected to a spring, one side surface of the tool mounting seat is fixedly connected to a cylindrical pin, one side surface of the tool mounting seat is fixedly connected to a male joint, the inner surface of the slot is fixedly connected to the plug post, the lower surface of the plug post is fixedly connected to the female joint, one side surface of the female joint is fixedly connected to a guide key, and the lower surface of the female joint is fixedly connected to a tool.

[0012] Preferably, the clamping slots are symmetrically arranged in two groups with respect to the central axis of the tool mounting seat, and the cylindrical pins form a telescopic structure with the clamping slots via springs.

[0013] Preferably, the plug posts are symmetrically arranged in two groups about the central axis of the female connector, and the guide keys are symmetrically arranged in four groups about the central axis of the female connector.

[0014] Preferably, the female connectors are symmetrically arranged in two groups with respect to the center axis of the cutter, and the inner wall size of the male connector matches the outer wall size of the female connector.

[0015] A double-layer PETG linerless hot melt adhesive label device and method, further comprising the following steps:

[0016] Step 1: Place the machine body steadily on the work site through the support column. Then, use the control panel to turn on the power of the equipment and perform the initial self-test operation. On the unwinding support arm on one side of the support plate, install the double-layer PETG linerless hot melt adhesive label roll onto the unwinding shaft. The baffle plates on both sides of the unwinding shaft can prevent the roll from shifting left and right during the unwinding process. Manually rotate the adjustment knob and adjust the position of the traction roller through the limit screw rod so that the distance between the traction roller and the feed roller adapts to the thickness of the label roll.

[0017] Step 2: Start the equipment, the unwinding shaft starts to rotate, driving the label roll to unwind, and the label is transported forward along the positioning guide rail. The positioning roller on one side of the positioning guide rail presses and guides the label to ensure the accurate position during the label transportation process. After the label passes the feed roller, the dust removal brush roller cleans the label surface to remove dust and impurities, preparing for the subsequent cutting process;

[0018] Step 3: Start the angle adjustment mechanism. Turn on the motor according to production needs. Its operation provides power. The motor transmits the rotation to the rotating shaft through the bevel gear, changes the power direction, and makes the rotating shaft rotate in the required direction. The rotating shaft drives the cutting base connected to it to rotate. Because the adjustment disk and the arc guide rail are fixed, the cutting base rotates around the rotating shaft. At the same time, the connecting plate drives the slider to slide on the arc guide rail. The operator observes the scale to determine the angle. When it rotates to the required angle, stop the motor, insert the positioning pin into the positioning hole, fix the slider, and lock the cutting base angle;

[0019] Step 4: After the angle adjustment is completed, the cylinder starts to push the push plate to move downward along the slide groove on the side support plate. The tool installed under the push plate through the quick release mechanism will drop accordingly to cut the delivered labels. During the cutting process, the limit column can prevent the push plate from dropping too much, protect the tool and the knife groove, and the cut labels fall into the knife groove;

[0020] Step 5: When the tool needs to be installed or replaced, first align it together with the female connector with the male connector on the tool mounting seat. The guide key is adapted to the guide groove of the card slot to guide the female connector to be inserted. After the pin enters the card slot with the female connector, press the cylindrical pin to overcome the spring force to move it inward. The spring is compressed to store energy, and continues to press and push the pin and the female connector. When the pin hole is aligned with the cylindrical pin, the spring releases energy to make the cylindrical pin pop out, and the pin is stuck in the slot to complete the fixation. When disassembling, press the cylindrical pin, the pin exits the hole slot to unlock, and the tool can be taken out. This method reduces the difficulty of installation, shortens the installation time, and improves the efficiency of production preparation.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] 1. Through the setting of the angle adjustment mechanism, according to the production requirements, the motor is started, and the motor starts to run to provide power for the entire adjustment process. The rotation of the motor is transmitted to the rotating shaft through the bevel gear fixedly connected on one side of the motor. The bevel gear plays a role in changing the direction of power transmission, so that the rotating shaft can rotate in the required direction. The rotating shaft is connected to the cutting base. When the rotating shaft rotates, it drives the cutting base to rotate. Because the adjustment disk and the arc guide rail are fixed, the cutting base rotates around the rotating shaft. Since the cutting base is fixedly connected to the slider through the connecting plate, the slider will slide on the fixed arc guide rail when the cutting base rotates. During the rotation of the cutting base, the operator observes the adjustment disk outside. The scale on the side of the adjusting disk is used to determine the current rotation angle of the cutting base. When it is rotated to the required angle, the motor is stopped, and then the positioning pin on the slider is inserted into the positioning hole on the outer surface of the adjusting disk to fix the slider on the arc guide rail, thereby locking the angle of the cutting base. After completing the angle positioning, the cutting component installed on the cutting base can cut the double-layer PETG linerless hot-melt adhesive label according to the set angle, so that the cutting angle can be flexibly adjusted within a certain range. With the scale on the outside of the adjusting disk, the angle can be determined intuitively and accurately to meet the diversified slitting needs when producing double-layer PETG linerless hot-melt adhesive labels of different shapes or specifications, greatly improving the diversity and adaptability of the product.

[0023] 2. Through the setting of the quick-release mechanism, when using and installing the tool, first of all, the tool and the female joint must be accurately aligned with the male joint on the tool mounting seat. When the female joint gradually approaches the male joint, the guide key begins to play a key role. The guide key and the guide groove of the card slot above the male joint are adapted to each other, like a track, guiding the female joint to be accurately inserted into the card slot. As the female joint is gradually inserted deeper, the plug connected to it also enters the card slot synchronously, and the cylindrical pin needs to be operated. By pressing the cylindrical pin, the cylindrical pin is closely related to the spring. Under the force of pressing, the cylindrical pin overcomes the elastic force of the spring and moves toward the inside of the card slot. In this process, the spring is gradually compressed, and the elastic potential energy stored inside it is also increasing. While continuously pressing the cylindrical pin, the operator needs to continue to push the plug Together with the female connector, it is inserted into the slot at a uniform speed along the predetermined direction guided by the guide key. As the insertion depth increases, when the plug post on the female connector corresponds to the hole position of the cylindrical pin and is precisely aligned with the cylindrical pin, the previously compressed spring instantly releases the stored elastic potential energy. Under the strong action of the spring force, the cylindrical pin pops out quickly and accurately inserts the plug post into the plug post groove of the slot and the cylindrical pin, thereby completing the fixation of the tool. When disassembling, it is only necessary to press the cylindrical pin to make it overcome the elastic force of the spring again and move toward the inside of the slot. The plug post will withdraw from the hole of the slot and the cylindrical pin and release the lock. At this time, the tool can be easily removed, which greatly reduces the difficulty of installation. Without complicated positioning operations, the docking position can be quickly found, which significantly shortens the tool installation time and can be easily completed, greatly improving the production preparation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a side view structural schematic diagram of the present invention;

[0025] Figure 2 It is a schematic diagram of the partial structure of the label cutting device of the present invention;

[0026] Figure 3 It is a schematic diagram of the structure of the cutting device of the present invention;

[0027] Figure 4 This is a schematic diagram of the angle adjustment mechanism structure of the present invention;

[0028] Figure 5 This is a schematic diagram of the separation structure of the angle adjustment mechanism components of the present invention;

[0029] Figure 6 It is a schematic diagram of the separation structure of the quick release mechanism of the present invention;

[0030] Figure 7 This is a schematic diagram of the connection structure between the tool mounting seat and the tool of the present invention;

[0031] Figure 8 It is a schematic diagram of the connection parts of the quick release mechanism of the present invention.

[0032] In the figure: 1, machine body; 2, support column; 3, support plate; 4, control panel; 5, unwinding support arm; 6, unwinding shaft; 7, blocking plate; 8, positioning guide rail; 9, positioning pressure roller; 10, adjusting knob; 11, limit screw rod; 12, traction roller; 13, feed roller; 14, dust removal brush roller; 15, angle adjustment mechanism; 1501, motor; 1502, mounting base plate; 1503, bevel gear; 1504, rotating shaft; 1505, adjusting plate; 1506, scale; 1507, arc guide rail; 1 508, slider; 1509, positioning hole; 1510, positioning pin; 1511, connecting plate; 16, cutting base; 17, side support plate; 18, crossbeam; 19, cylinder; 20, push plate; 21, limit column; 22, slide groove; 23, tool groove; 24, quick release mechanism; 2401, tool mounting seat; 2402, slot; 2403, spring; 2404, cylindrical pin; 2405, male connector; 2406, plug column; 2407, female connector; 2408, guide key; 2409, tool. DETAILED DESCRIPTION

[0033] 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.

[0034] Example 1

[0035] See also Figure 1-8The present invention provides a technical solution: a double-layer PETG bottom paper-free hot melt adhesive label device and method, comprising a body 1, a support column 2 is fixedly connected to the lower surface of the body 1, a support plate 3 is fixedly connected to the upper surface of the body 1, a control panel 4 is fixedly connected to the one side surface of the body 1, a reel support arm 5 is fixedly connected to the one side surface of the support plate 3, a reel shaft 6 is fixedly connected to the one side surface of the reel support arm 5, a material blocking plate 7 is fixedly connected to the outer surface of the reel shaft 6, a positioning guide rail 8 is fixedly connected to the upper surface of the body 1, a positioning roller 9 is fixedly connected to the one side surface of the positioning guide rail 8, an adjusting knob 10 is fixedly connected to the one side surface of the body 1, a limit screw rod 11 is fixedly connected to the lower surface of the adjusting knob 10, and a limit screw rod 11 is fixedly connected to the one side surface of the limit screw rod 11 A traction roller 12 is connected, a feed roller 13 is fixedly connected to one side surface of the machine body 1, a dust removal brush roller 14 is fixedly connected to one side surface of the machine body 1, an angle adjustment mechanism 15 is provided on one side surface of the machine body 1, a cutting base 16 is provided on the upper surface of the angle adjustment mechanism 15, a side support plate 17 is fixedly connected to the upper surface of the cutting base 16, a cross beam 18 is fixedly connected to one side surface of the side support plate 17, a cylinder 19 is fixedly connected to one side surface of the cross beam 18, a push plate 20 is fixedly connected to one side surface of the cylinder 19, a limiting column 21 is fixedly connected to the upper surface of the push plate 20, a slide groove 22 is provided on one side surface of the side support plate 17, a knife groove 23 is fixedly connected to the upper surface of the cutting base 16, and a quick release mechanism 24 is provided on the lower surface of the push plate 20;

[0036] The angle adjustment mechanism 15 includes a motor 1501, a mounting base plate 1502, a bevel gear 1503, a rotating shaft 1504, an adjusting disk 1505, a scale 1506, an arc guide rail 1507, a slider 1508, a positioning hole 1509, a positioning pin 1510 and a connecting plate 1511. The inner surface of the body 1 is fixedly connected with the motor 1501, and the mounting base plate 1502 is connected through one side surface of the motor 1501. The bevel gear 1503 is fixedly connected to one side surface of the motor 1501. The rotating shaft 1504 is fixedly connected to the outer surface of the rotating shaft 1504. The adjusting disk 1505 is fixedly connected to the outer surface of the adjusting disk 1505. The scale 1506 is fixedly connected to the adjusting disk. The upper surface of 1505 is fixedly connected with an arc guide rail 1507, one side surface of the arc guide rail 1507 is fixedly connected with a slider 1508, the outer surface of the arc guide rail 1507 is provided with a positioning hole 1509, one side surface of the slider 1508 is fixedly connected with a positioning pin 1510, and the upper surface of the slider 1508 is fixedly connected with a connecting plate 1511. Through the arrangement of the motor 1501, the mounting base plate 1502, the bevel gear 1503, the rotating shaft 1504, the adjusting disk 1505, the scale 1506, the arc guide rail 1507, the slider 1508, the positioning hole 1509, the positioning pin 1510 and the connecting plate 1511, when in use, according to production requirements, the motor 1501 is started, and the motor 1501 starts to run. The entire adjustment process provides power, and the rotation of the motor 1501 is transmitted to the rotating shaft 1504 through the bevel gear 1503 fixedly connected to one side thereof. The bevel gear 1503 plays a role in changing the direction of power transmission, so that the rotating shaft 1504 can rotate in the required direction. The rotating shaft 1504 is connected to the cutting base 16. When the rotating shaft 1504 rotates, the cutting base 16 is driven to rotate. Because the adjustment disk 1505 and the arc guide rail 1507 are fixed, the cutting base 16 rotates around the rotating shaft 1504. Since the cutting base 16 is fixedly connected to the slider 1508 through the connecting plate 1511, the slider 1508 will be driven to slide on the fixed arc guide rail 1507 when the cutting base 16 rotates. During the rotation of the cutting base 16, the operator observes the scale 1506 on the outside of the adjusting disk 1505 to determine the current rotation angle of the cutting base 16. When the cutting base 16 is rotated to the desired angle, the motor 1501 is stopped, and then the positioning pin 1510 on the slider 1508 is inserted into the positioning hole 1509 on the outer surface of the adjusting disk 1505, so that the slider 1508 is fixed on the arc guide rail 1507, thereby locking the angle of the cutting base 16. After the angle positioning is completed, the cutting component installed on the cutting base 16 can cut the double-layer PETG linerless hot melt adhesive label according to the set angle, so that the cutting angle can be flexibly adjusted within a certain range. The angle can be determined intuitively and accurately in conjunction with the scale 1506 on the outside of the adjusting disk 1505.To meet the diverse slitting requirements when producing double-layer PETG linerless hot melt adhesive labels of different shapes or specifications, it greatly improves the diversity and adaptability of the product.

[0037] Furthermore, four groups of support columns 2 are symmetrically arranged about the central axis of the machine body 1, and two groups of unwinding support arms 5 are symmetrically arranged about the central axis of the machine body 1. Through the arrangement of the support columns 2, when in use, the support columns 2 are symmetrically arranged in four groups about the central axis of the machine body 1, which can evenly disperse the weight and force generated by the machine body and the equipment during operation, so that the equipment can be firmly rooted in the ground during operation, reducing the risk of shaking and tipping, ensuring that the equipment remains stable when running at high speed or processing heavier materials, and providing a stable foundation for high-precision operations in label production.

[0038] Furthermore, two groups of material blocking plates 7 are symmetrically arranged with the central axis of the unwinding shaft 6, and two groups of positioning rollers 9 are symmetrically arranged with the central axis of the positioning guide rail 8. Through the setting of the material blocking plates 7, when in use, the material blocking plates 7 can effectively prevent the label roll from shifting left and right during the unwinding process, and restrain the roll in a specified position, avoiding problems such as wrinkles and entanglement of the label due to position shift, ensuring that the label can be smoothly and stably released from the roll, providing good starting conditions for subsequent processing procedures.

[0039] Furthermore, the rotating shaft 1504 forms a rotating structure with the motor 1501 through the bevel gear 1503, and the slider 1508 is symmetrically arranged with two groups on the central axis of the arc guide rail 1507. Through the setting of the bevel gear 1503, when in use, the bevel gear 1503 can realize the change of the power transmission direction, so that the motor 1501 can provide power to the rotating shaft 1504 at a reasonable position and angle in a relatively compact space layout, so that the power of the motor 1501 can be efficiently transmitted to the rotating shaft 1504, driving the cutting base 16 connected thereto to rotate, thereby realizing the adjustment of the cutting angle.

[0040] Furthermore, the slider 1508 is engaged with the positioning hole 1509 through the positioning pin 1510, and the positioning holes 1509 are evenly spaced on the outer wall of the arc guide rail 1507. Through the arrangement of the slider 1508, the positioning hole 1509 and the positioning pin 1510, when in use, the slider 1508 is engaged with the positioning hole 1509 through the positioning pin 1510, which provides a clear and accurate positioning method for the angle fixation of the cutting base 16. When the cutting base 16 is rotated to the target angle, the positioning pin 1510 is inserted into the corresponding positioning hole 1509, which can firmly fix the slider 1508, thereby ensuring that the cutting base 16 is maintained at the set angle, greatly improving the accuracy of angle positioning, so that when producing double-layer PETG linerless hot melt adhesive labels, cutting can be performed according to high-precision design requirements, reducing product defects caused by angle deviation.

[0041] Furthermore, the quick release mechanism 24 includes a tool mounting seat 2401, a slot 2402, a spring 2403, a cylindrical pin 2404, a male connector 2405, a plug 2406, a female connector 2407, a guide key 2408 and a tool 2409. The lower surface of the push plate 20 is fixedly connected to the tool mounting seat 2401, the inner surface of the tool mounting seat 2401 is provided with a slot 2402, a side surface of the slot 2402 is fixedly connected to the spring 2403, a side surface of the tool mounting seat 2401 is fixedly connected to the cylindrical pin 2404, a side surface of the tool mounting seat 2401 is fixedly connected to the male connector 2405, the inner surface of the slot 2402 is fixedly connected to the plug 2406, and the lower surface of the plug 2406 is fixed A female connector 2407 is connected, a guide key 2408 is fixedly connected to one side surface of the female connector 2407, a tool 2409 is fixedly connected to the lower surface of the female connector 2407, and through the arrangement of the tool mounting seat 2401, the slot 2402, the spring 2403, the cylindrical pin 2404, the male connector 2405, the plug 2406, the female connector 2407, the guide key 2408 and the tool 2409, when in use, when installing the tool 2409, the tool 2409 must first be accurately aligned with the male connector 2405 on the tool mounting seat 2401 together with the female connector 2407, when the female connector 2407 gradually approaches the male connector 2405, the guide key 2408 begins to play a key role, and the guide key 2408 starts to play a key role. 8 is adapted to the guide groove of the card slot 2402 above the male connector 2405, like a track, to guide the female connector 2407 to be accurately inserted into the card slot 2402. As the female connector 2407 is gradually inserted deeper, the plug post 2406 connected thereto also enters the card slot 2402 synchronously, and the cylindrical pin 2404 needs to be operated. By pressing the cylindrical pin 2404, the cylindrical pin 2404 is closely associated with the spring 2403. Under the force of pressing, the cylindrical pin 2404 overcomes the elastic force of the spring 2403 and moves toward the inside of the card slot 2402. In this process, the spring 2403 is gradually compressed, and the elastic potential energy stored therein is also increasing. While continuously pressing the cylindrical pin 2404, the operator needs to continue to push the plug post 2406 together with the female connector 2407 are uniformly inserted into the card slot 2402 along the predetermined direction guided by the guide key 2408. As the insertion depth increases, when the plug post 2406 on the female connector 2407 corresponds to the hole position of the cylindrical pin 2404 and is precisely aligned with the cylindrical pin 2404, the previously compressed spring 2403 instantly releases the stored elastic potential energy. Under the strong elastic force of the spring 2403, the cylindrical pin 2404 pops up quickly and accurately inserts the plug post 2406 into the card slot 2402 and the plug post 2406 groove of the cylindrical pin 2404, thereby completing the fixation of the tool 2409. When disassembling, it is only necessary to press the cylindrical pin 2404 to make it overcome the elastic force of the spring 2403 again and move toward the inside of the card slot 2402.The plug 2406 will be withdrawn from the slot 2402 and the hole of the cylindrical pin 2404, and the lock is released. At this time, the tool 2409 can be easily taken out, which greatly reduces the difficulty of installation. Without complicated positioning operations, the docking position can be quickly found, which significantly shortens the installation time of the tool 2409, and the installation can be easily completed, greatly improving the production preparation efficiency.

[0042] Furthermore, two groups of slots 2402 are symmetrically arranged on the central axis of the tool mounting seat 2401, and the cylindrical pin 2404 forms a telescopic structure with the slot 2402 through the spring 2403. Through the setting of the slot 2402, when in use, the two groups of slots 2402 are symmetrically arranged on the central axis of the tool mounting seat 2401. When installing the tool 2409, the female connector 2407 can be connected to the tool mounting seat 2401 through two symmetrical slots 2402. This symmetrical connection method allows the force exerted on the tool 2409 during operation to be evenly distributed, avoiding shaking or deviation caused by uneven force, thereby ensuring the cutting stability and accuracy of the tool 2409 and improving the processing quality of the product.

[0043] Furthermore, two groups of plug posts 2406 are symmetrically arranged about the central axis of the female connector 2407, and four groups of guide keys 2408 are symmetrically arranged about the central axis of the female connector 2407. Through the setting of the guide keys 2408, when in use, the four groups of guide keys 2408 are symmetrically arranged about the central axis of the female connector 2407, which can provide more precise guidance for the female connector 2407 to be inserted into the slot 2402 above the male connector 2405. During the installation process, the guide keys 2408 cooperate closely with the guide slots of the male connector 2405 to constrain and guide the female connector 2407 from multiple directions, thereby ensuring that the female connector 2407 can be accurately inserted into the slot 2402, thereby greatly improving the accuracy and efficiency of the installation.

[0044] Furthermore, two groups of female connectors 2407 are symmetrically arranged with respect to the central axis of the tool 2409. The inner wall size of the male connector 2405 matches the outer wall size of the female connector 2407. Through the setting of the male connector 2405, when in use, the size matching can ensure a tight fit between the male connector 2405 and the female connector 2407, preventing looseness or shaking during the cutting process, and ensuring the connection strength between the tool 2409 and the tool mounting seat 2401. At the same time, the tight fit can also reduce the gap and prevent dust, chips and other impurities from entering the connection part, thereby extending the service life of the connector and improving the reliability of the equipment.

[0045] Example 2

[0046] A double-layer PETG linerless hot melt adhesive label device and method, using a double-layer PETG linerless hot melt adhesive label device in embodiment 1, further comprising the following steps:

[0047] Step 1: Place the machine body 1 steadily on the work site through the support column 2, then use the control panel 4 to turn on the power of the equipment, perform the initialization self-test operation, and install the double-layer PETG linerless hot melt adhesive label roll on the unwinding shaft 6 on the unwinding support arm 5 on one side of the support plate 3. The blocking plates 7 on both sides of the unwinding shaft 6 can prevent the roll from shifting left and right during the unwinding process. Manually rotate the adjustment knob 10 and adjust the position of the traction roller 12 through the limit screw 11, so that the distance between the traction roller 12 and the feed roller 13 is adapted to the thickness of the label roll;

[0048] Step 2: Start the equipment, the unwinding shaft 6 starts to rotate, driving the label roll to unwind, and the label is transported forward along the positioning guide rail 8. The positioning roller 9 on one side of the positioning guide rail 8 presses and guides the label to ensure that the label is accurately positioned during transportation. After the label passes through the feed roller 13, the dust removal brush roller 14 cleans the label surface to remove dust and impurities, preparing for the subsequent cutting process;

[0049] Step 3: Start the angle adjustment mechanism 15, turn on the motor 1501 according to production needs, and its operation provides power. The motor 1501 transmits the rotation to the rotating shaft 1504 through the bevel gear 1503, changes the power direction, and makes the rotating shaft 1504 rotate in the required direction. The rotating shaft 1504 drives the cutting base 16 connected thereto to rotate. Because the adjustment disk 1505 and the arc guide rail 1507 are fixed, the cutting base 16 rotates around the rotating shaft 1504 as the center, and at the same time drives the slider 1508 to slide on the arc guide rail 1507 through the connecting plate 1511. The operator observes the scale 1506 to determine the angle. When it rotates to the required angle, the motor 1501 is stopped, and the positioning pin 1510 is inserted into the positioning hole 1509, the slider 1508 is fixed, and the angle of the cutting base 16 is locked;

[0050] Step 4: After the angle adjustment is completed, the cylinder 19 is started to push the push plate 20 to move downward along the slide groove 22 on the side support plate 17, and the tool 2409 installed under the push plate 20 through the quick release mechanism 24 is lowered to cut the conveyed label. During the cutting process, the limit column 21 can prevent the push plate 20 from excessively falling, protect the tool 2409 and the knife groove 23, and the cut label falls into the knife groove 23;

[0051] Step 5: When the tool 2409 needs to be installed or replaced, first align it together with the female connector 2407 with the male connector 2405 on the tool mounting seat 2401, and the guide key 2408 is adapted to the guide groove of the slot 2402 to guide the female connector 2407 to be inserted. After the pin 2406 enters the slot 2402 with the female connector 2407, press the cylindrical pin 2404 to overcome the elastic force of the spring 2403 to move it inward. The spring 2403 is compressed to store energy, and continuously press and push the pin 2406 and the female connector 2407. When the hole position of the pin 2406 is aligned with the cylindrical pin 2404, the spring 2403 releases energy to make the cylindrical pin 2404 pop out, and the pin 2406 is stuck in the slot to complete the fixation. When disassembling, press the cylindrical pin 2404, the pin 2406 withdraws from the hole slot to unlock, and the tool 2409 can be taken out. This method reduces the difficulty of installation, shortens the installation time, and improves the production preparation efficiency.

[0052] Working principle: This double-layer PETG linerless hot melt adhesive label equipment and method, through the setting of the angle adjustment mechanism 15, according to the production demand, starts the motor 1501, the motor 1501 starts to run, and provides power for the entire adjustment process. The rotation of the motor 1501 is transmitted to the rotating shaft 1504 through the bevel gear 1503 fixedly connected to one side thereof. The bevel gear 1503 plays a role in changing the power transmission direction, so that the rotating shaft 1504 can rotate in the required direction. The rotating shaft 1504 is connected to the cutting base 16. When the rotating shaft 1504 rotates, it drives the cutting base 16 to rotate. Because the adjustment disk 1505 and the arc guide rail 1507 are fixed, the cutting base 16 rotates around the rotating shaft 1504. The cutting base 16 is fixedly connected to the slider 1508 through the connecting plate 1511, so when the cutting base 16 rotates, it will drive the slider 1508 to slide on the fixed arc guide rail 1507. During the rotation of the cutting base 16, the operator observes the scale 1506 on the outside of the adjusting disk 1505 to determine the current rotation angle of the cutting base 16. When it rotates to the required angle, the motor 1501 is stopped, and then the positioning pin 1510 on the slider 1508 is inserted into the positioning hole 1509 on the outer surface of the adjusting disk 1505, so that the slider 1508 is fixed on the arc guide rail 1507, thereby locking the angle of the cutting base 16. After completing the angle positioning, the cutting component installed on the cutting base 16 can cut the double-layer PET according to the set angle. G linerless hot melt adhesive label is cut, so the cutting angle can be flexibly adjusted within a certain range, and the angle can be determined intuitively and accurately in conjunction with the scale 1506 on the outside of the adjustment disk 1505, so as to meet the diversified slitting needs when producing double-layer PETG linerless hot melt adhesive labels of different shapes or specifications, which greatly improves the diversity and adaptability of the product. Through the setting of the quick release mechanism 24, when in use, when installing the tool 2409, the tool 2409 must first be accurately aligned with the male connector 2405 on the tool mounting seat 2401 together with the female connector 2407. When the female connector 2407 gradually approaches the male connector 2405, the guide key 2408 begins to play a key role. The guide key 2408 and the male connector 2405 The guide grooves of the upper card slot 2402 are adapted to each other, like a track, to guide the female connector 2407 to be accurately inserted into the card slot 2402. As the female connector 2407 is gradually inserted deeper, the plug post 2406 connected thereto also enters the card slot 2402 synchronously, and the cylindrical pin 2404 needs to be operated. By pressing the cylindrical pin 2404, the cylindrical pin 2404 is closely associated with the spring 2403. Under the force of pressing, the cylindrical pin 2404 overcomes the elastic force of the spring 2403 and moves toward the inside of the card slot 2402. In this process, the spring 2403 is gradually compressed, and the elastic potential energy stored therein is also increasing. While continuously pressing the cylindrical pin 2404, the operator needs to continue to push the plug post 2406 together with the female connector 2407.Insert the plug 2406 into the card slot 2402 at a uniform speed along the predetermined direction guided by the guide key 2408. As the insertion depth increases, when the plug 2406 on the female connector 2407 corresponds to the hole position of the cylindrical pin 2404 and is precisely aligned with the cylindrical pin 2404, the previously compressed spring 2403 instantly releases the stored elastic potential energy. Under the strong elastic force of the spring 2403, the cylindrical pin 2404 pops out quickly and accurately inserts the plug 2406 into the card slot 2402 and the plug 2406 groove of the cylindrical pin 2404, thereby completing the fixation of the tool 2409. When disassembling, just press the cylindrical pin 2404 to make it move into the slot 2402 again against the elastic force of the spring 2403, and the plug 2406 will withdraw from the slot 2402 and the hole of the cylindrical pin 2404, unlocking the lock. At this time, the tool 2409 can be easily taken out, which greatly reduces the difficulty of installation. Without complicated positioning operations, the docking position can be quickly found, which significantly shortens the installation time of the tool 2409, and the installation can be easily completed, greatly improving the production preparation efficiency. The model of the motor 1501 is YE2-132S-4.

[0053] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A double-layer PETG linerless hot melt adhesive labeling device, comprising a body (1), characterized in that: The lower surface of the machine body (1) is fixedly connected to a support column (2), the upper surface of the machine body (1) is fixedly connected to a support plate (3), one side surface of the machine body (1) is fixedly connected to a control panel (4), one side surface of the support plate (3) is fixedly connected to an unwinding support arm (5), one side surface of the unwinding support arm (5) is fixedly connected to an unwinding shaft (6), the outer side surface of the unwinding shaft (6) is fixedly connected to a material blocking disk (7), the upper surface of the machine body (1) is fixedly connected to a positioning guide rail (8), one side surface of the positioning guide rail (8) is fixedly connected to a positioning roller (9), one side surface of the machine body (1) is fixedly connected to an adjusting knob (10), the lower surface of the knob (10) is fixedly connected to a limiting screw rod (11), one side surface of the limiting screw rod (11) is fixedly connected to a traction roller (12), and one side surface of the machine body (1) is fixedly connected to A feeding roller (13) is provided, a dust removal brush roller (14) is fixedly connected to one side surface of the machine body (1), an angle adjustment mechanism (15) is provided on one side surface of the machine body (1), a cutting base (16) is provided on the upper surface of the angle adjustment mechanism (15), a side support plate (17) is fixedly connected to the upper surface of the cutting base (16), a side support plate (17) is fixedly connected to a cross beam (18) on one side surface of the side support plate (17), a cylinder (19) is fixedly connected to one side surface of the cross beam (18), a push plate (20) is fixedly connected to one side surface of the cylinder (19), a limiting column (21) is fixedly connected to the upper surface of the push plate (20), a slide groove (22) is provided on one side surface of the side support plate (17), a knife groove (23) is fixedly connected to the upper surface of the cutting base (16), and a quick release mechanism (24) is provided on the lower surface of the push plate (20); The angle adjustment mechanism (15) comprises a motor (1501), a mounting base plate (1502), a bevel gear (1503), a rotating shaft (1504), an adjustment disk (1505), a scale (1506), an arc guide rail (1507), a slider (1508), a positioning hole (1509), a positioning pin (1510) and a connecting plate (1511); the motor (1501) is fixedly connected to the inner surface of the body (1); the mounting base plate (1502) is penetrated and connected to one side surface of the motor (1501); the bevel gear (1503) is fixedly connected to one side surface of the motor (1501); and the bevel gear (1503) is fixedly connected to one side surface of the bevel gear (1503). A rotating shaft (1504) is fixedly connected, an adjusting disk (1505) is fixedly connected to the outer surface of the rotating shaft (1504), a scale (1506) is fixedly connected to the outer surface of the adjusting disk (1505), an arc-shaped guide rail (1507) is fixedly connected to the upper surface of the adjusting disk (1505), a slider (1508) is fixedly connected to one side surface of the arc-shaped guide rail (1507), a positioning hole (1509) is provided on the outer surface of the arc-shaped guide rail (1507), a positioning pin (1510) is fixedly connected to one side surface of the slider (1508), and a connecting plate (1511) is fixedly connected to the upper surface of the slider (1508).

2. A double-layer PETG linerless hot melt adhesive label equipment according to claim 1, characterized in that: The support columns (2) are symmetrically arranged in four groups about the central axis of the machine body (1), and the unwinding support arms (5) are symmetrically arranged in two groups about the central axis of the machine body (1).

3. A double-layer PETG linerless hot melt adhesive label equipment according to claim 1, characterized in that: The material blocking discs (7) are symmetrically arranged in two groups around the central axis of the unwinding shaft (6), and the positioning rollers (9) are symmetrically arranged in two groups around the central axis of the positioning guide rail (8).

4. A double-layer PETG linerless hot melt adhesive label equipment according to claim 1, characterized in that: The rotating shaft (1504) forms a rotating structure with the motor (1501) through the bevel gear (1503), and the sliding blocks (1508) are symmetrically arranged in two groups around the central axis of the arc-shaped guide rail (1507).

5. A double-layer PETG linerless hot melt adhesive label equipment according to claim 1, characterized in that: The slider (1508) is engaged with the positioning holes (1509) via positioning pins (1510), and the positioning holes (1509) are distributed at equal intervals on the outer wall of the arc-shaped guide rail (1507).

6. A double-layer PETG linerless hot melt adhesive labeling equipment according to claim 1, characterized in that: The quick release mechanism (24) comprises a tool mounting seat (2401), a slot (2402), a spring (2403), a cylindrical pin (2404), a male connector (2405), a plug post (2406), a female connector (2407), a guide key (2408) and a tool (2409); the lower surface of the push plate (20) is fixedly connected to the tool mounting seat (2401); the inner surface of the tool mounting seat (2401) is provided with a slot (2402); a side surface of the slot (2402) is fixedly connected to the spring (2403); ), a cylindrical pin (2404) is fixedly connected to one side surface of the tool mounting seat (2401), a male connector (2405) is fixedly connected to one side surface of the tool mounting seat (2401), a plug post (2406) is fixedly connected to the inner side surface of the slot (2402), a female connector (2407) is fixedly connected to the lower surface of the plug post (2406), a guide key (2408) is fixedly connected to one side surface of the female connector (2407), and a tool (2409) is fixedly connected to the lower surface of the female connector (2407).

7. A double-layer PETG linerless hot melt adhesive labeling equipment according to claim 6, characterized in that: The clamping grooves (2402) are symmetrically arranged in two groups with respect to the central axis of the tool mounting seat (2401), and the cylindrical pins (2404) form a telescopic structure with the clamping grooves (2402) via the springs (2403).

8. The double-layer PETG linerless hot melt adhesive labeling equipment according to claim 6, characterized in that: The plug posts (2406) are symmetrically arranged in two groups with respect to the central axis of the female connector (2407), and the guide keys (2408) are symmetrically arranged in four groups with respect to the central axis of the female connector (2407).

9. The double-layer PETG linerless hot melt adhesive labeling equipment according to claim 6, characterized in that: The female connector (2407) is symmetrically arranged in two groups with respect to the central axis of the cutter (2409), and the inner wall size of the male connector (2405) matches the outer wall size of the female connector (2407).

10. A double-layer PETG linerless hot melt adhesive labeling device and method, characterized in that: The double-layer PETG linerless hot melt adhesive labeling device according to any one of claims 1 to 9 further comprises the following steps: Step 1: Place the machine body (1) stably on the work site through the support column (2), then use the control panel (4) to turn on the power of the equipment and perform the initialization self-test operation. On the unwinding support arm (5) on one side of the support plate (3), install the double-layer PETG linerless hot melt adhesive label roll onto the unwinding shaft (6). The blocking plates (7) on both sides of the unwinding shaft (6) can prevent the roll from shifting left and right during the unwinding process. Manually rotate the adjustment knob (10) and adjust the position of the traction roller (12) through the limit screw (11) so that the distance between the traction roller (12) and the feed roller (13) is adapted to the thickness of the label roll. Step 2: Start the equipment, the unwinding shaft (6) starts to rotate, driving the label roll to unwind, and the label is transported forward along the positioning guide rail (8). The positioning pressure roller (9) on one side of the positioning guide rail (8) presses and guides the label to ensure that the label is accurately positioned during transportation. After the label passes through the feed roller (13), the dust removal brush roller (14) cleans the surface of the label to remove dust and impurities, preparing for the subsequent cutting process; Step 3: Start the angle adjustment mechanism (15), turn on the motor (1501) according to production requirements, and its operation provides power. The motor (1501) transmits the rotation to the rotating shaft (1504) through the bevel gear (1503), changes the power direction, and makes the rotating shaft (1504) rotate in the required direction. The rotating shaft (1504) drives the cutting base (16) connected thereto to rotate. Since the adjustment disk (1505) and the arc guide rail (1507) are fixed, the cutting base (16) rotates around the rotating shaft (1504) as the center, and at the same time drives the slider (1508) to slide on the arc guide rail (1507) through the connecting plate (1511). The operator observes the scale (1506) to determine the angle. When the angle is rotated to the required angle, the motor (1501) is stopped, the positioning pin (1510) is inserted into the positioning hole (1509), the slider (1508) is fixed, and the angle of the cutting base (16) is locked; Step 4: After the angle adjustment is completed, the cylinder (19) is started to push the push plate (20) to move downward along the slide groove (22) on the side support plate (17), and the tool (2409) installed under the push plate (20) through the quick release mechanism (24) is lowered to cut the conveyed label. During the cutting process, the limit column (21) can prevent the push plate (20) from excessively descending, protect the tool (2409) and the knife groove (23), and the cut label falls into the knife groove (23); Step 5: When the tool (2409) needs to be installed or replaced, first align it with the female connector (2407) to the male connector (2405) on the tool mounting seat (2401), and the guide key (2408) is adapted to the guide groove of the slot (2402) to guide the female connector (2407) to be inserted. After the plug (2406) enters the slot (2402) with the female connector (2407), the cylindrical pin (2404) is pressed to overcome the elastic force of the spring (2403) to move it inward, and the spring (2403) is Compress and store energy, and continue to press and push the plug (2406) and the female connector (2407). When the hole of the plug (2406) is aligned with the cylindrical pin (2404), the spring (2403) releases energy to make the cylindrical pin (2404) pop out, and the plug (2406) is inserted into the groove to complete the fixation. When disassembling, press the cylindrical pin (2404), the plug (2406) withdraws from the hole to release the lock, and the tool (2409) can be taken out. This method reduces the difficulty of installation, shortens the installation time, and improves the efficiency of production preparation.

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