Automatic laminator

Abstract

The utility model belongs to the technical field of pearl wool processing, and particularly relates to an automatic laminator. Comprising a laminator body, the conveying mechanism is arranged on the upper surface of the laminator body, and the pearl wool is arranged on the conveying mechanism; the fixing seats are welded and fixed to the two sides of the conveying mechanism, and sliding grooves are formed in the fixing seats; the bottom of the portal frame structure is in sliding connection with the sliding groove; the horizontal position of the portal frame structure is adjusted along the sliding grooves and locked and fixed through bolts. The two ends of the roller assembly are installed on the portal frame through lifting mechanisms. Through the design of the lifting structure and the portal frame structure, the horizontal position and height of the heating roller can be adjusted. Due to the flexibility, the gluing machine can adapt to automatic gluing operation of pearl wool of different sizes and shapes, and the universality and practicability of the equipment are improved. Meanwhile, the equipment is reasonable in structural design, and daily maintenance and cleaning are facilitated.

Description

Technical Field

[0001] This utility model belongs to the field of pearl cotton processing technology, specifically relating to an automatic gluing machine. Background Technology

[0002] Polyethylene foam, also known as EPE pearl cotton, is a non-crosslinked closed-cell structure and a new type of environmentally friendly packaging material. It is composed of countless independent air bubbles created through the physical foaming of low-density polyethylene resin. This overcomes the shortcomings of ordinary foam, such as fragility, deformation, and poor resilience. It possesses numerous advantages, including water and moisture resistance, shock absorption, sound insulation, heat insulation, excellent plasticity, high toughness, recyclability, environmental friendliness, and strong impact resistance. It also exhibits excellent chemical resistance, making it an ideal substitute for traditional packaging materials.

[0003] During the production of pearl cotton, hot melt adhesive is used for bonding. Traditional pearl cotton hot melt adhesive roller coating equipment is generally used by manual application of hot melt adhesive, which makes it difficult to control the amount of hot melt adhesive applied, resulting in waste of hot melt adhesive.

[0004] The information disclosed in the background section above is only used to enhance the understanding of the background art of the art described herein. Therefore, the background art may contain certain information that would not be considered part of the prior art by those skilled in the art. Utility Model Content

[0005] In order to overcome the shortcomings of the existing technology, this utility model proposes an automatic gluing machine.

[0006] The technical solution adopted in this utility model is as follows:

[0007] An automatic gluing machine, comprising:

[0008] Glue laminating machine body;

[0009] The conveying mechanism is located on the upper surface of the laminating machine body, and the pearl cotton is on the conveying mechanism;

[0010] A fixed base is welded and fixed to both sides of the transmission mechanism, and a sliding groove is provided on the fixed base;

[0011] The gantry structure has its bottom slidably connected to a slide groove; the gantry structure is adjusted to a horizontal position along the slide groove and fixed by bolts.

[0012] The roller assembly is mounted on the gantry frame at both ends via lifting mechanisms. The vertical height of the roller assembly can be adjusted by the lifting mechanisms, enabling it to perform hot melt adhesive coating on the pearl cotton on the surface of the conveying mechanism.

[0013] In some embodiments, the transmission mechanism includes a belt, a drive roller, and a drive motor. The belt is tightly attached to the surface of the drive roller and is driven to move together by friction. The two ends of the drive roller are mounted on a fixed base by bearings and are driven to rotate by the drive motor.

[0014] In some embodiments, the mounting base includes two slide rails arranged in parallel on both sides of the top of the laminator body.

[0015] In some embodiments, the gantry structure includes: a gantry-shaped frame, a slider that cooperates with a slide rail seat at the bottom of the frame, a top plate at the top of the frame, and vertical uprights on the sides of the frame, with the two ends of the uprights fixedly connected to the slide rail seat and the top plate, respectively.

[0016] In some embodiments, the lifting mechanism includes: a plurality of guide columns between the top plate and the slide rail seat, the guide columns being arranged vertically, and their two ends being rotatably connected to the slide rail seat and the top plate respectively through bearings; the surface of the guide column is provided with threads, and a lifting slider is threadedly connected to the guide column, wherein a hand crank is connected to the top of one of the guide columns.

[0017] In some embodiments, the roller assembly includes:

[0018] The heating roller has heating elements inside and is connected to lifting sliders at both ends. A heating plate for placing hot glue blocks is also provided on one side of the heating roller. There is a gap between the heating plate and the heating roller. The hot glue blocks are placed at an angle on the heating plate, which has heating elements inside. During operation, the hot melt glue blocks come into contact with the surface of the heating roller under the action of the inclined surface of the heating plate. The surface of the hot melt glue blocks melts under the high temperature of the heating roller and the heating plate. The melted hot melt glue adheres to the surface of the heating roller under the action of the rotation of the heating roller. While the heating roller rotates, the hot melt glue on its surface coats the surface of the pearl cotton below.

[0019] In some embodiments, the spacing between the heating plate and the heating roller depends on the thickness of the hot melt adhesive to be applied to the surface of the pearl cotton. This spacing can be finely adjusted according to the work standards. The heating plate is also provided with a spacing adjustment mechanism at both ends, including a mounting plate fixedly connected to the upright. A pull rod is provided on the mounting plate and rotatably connected to the heating plate. The middle part of the pull rod is rotatably connected to the mounting plate through a bearing. The end of the pull rod is threadedly connected to the mounting plate. A rotating wheel is connected to the mounting plate through the end of the pull rod. The rotation of the rotating wheel is controlled to drive the pull rod to rotate. The end of the pull rod is threadedly connected to the mounting plate to adjust the position of the pull rod.

[0020] In some embodiments, the mounting plate includes a base plate and side plates. A bearing seat is provided on the base plate, and the middle of the pull rod passes through the bearing seat and is rotatably connected to it. There are two side plates, which are arranged in an L-shape. The end of the pull rod passes through one of the side plates and is threadedly connected to it.

[0021] In some embodiments, both ends of the heating plate are provided with a spacing adjustment mechanism, and a linkage rod is provided between the two spacing adjustment mechanisms. The end of the linkage rod passes through the side plate and is connected to the pull rod through a helical gear mechanism. Working principle: When the pull rod in one of the spacing adjustment mechanisms at both ends of the heating plate rotates, it drives the pull rod in the other spacing adjustment mechanism to rotate through the helical gear mechanism, thus realizing the linkage adjustment of the spacing adjustment mechanisms at both ends of the heating plate.

[0022] In some embodiments, the helical gear mechanism includes a first helical gear fixed in the middle of the pull rod and a second helical gear fixed in the end of the linkage rod, wherein the first helical gear and the second helical gear are meshed together.

[0023] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0024] 1) A heating roller is installed on the top of the laminating machine body, connected to a gantry structure via a lifting mechanism. The gantry structure is slidably connected to a fixed base on the laminating machine body. The design of the lifting and gantry structures allows for adjustment of the horizontal position and height of the heating roller. This flexibility enables the laminating machine to adapt to different sizes and shapes, improving the equipment's versatility and practicality. Furthermore, the equipment's structural design is reasonable, facilitating daily maintenance and cleaning.

[0025] 2) A heating plate for placing hot melt adhesive blocks is provided on one side of the heating roller. Heating elements are provided inside both the heating plate and the heating roller. Under the action of the inclined surface of the heating plate, the hot melt adhesive blocks come into contact with the surface of the heating roller. The surface of the hot melt adhesive blocks melts under the high temperature of the heating roller and the heating plate. The melted hot melt adhesive adheres to the surface of the heating roller under the action of the rotation of the heating roller. While the heating roller rotates, the hot melt adhesive on its surface performs hot melt adhesive coating on the surface of the pearl cotton below, achieving a high-efficiency and uniform coating effect. Attached Figure Description

[0026] This utility model will be described by way of example and with reference to the accompanying drawings, wherein:

[0027] Figure 1 , Figure 2 All of these are perspective views of the automatic gluing machine of this utility model;

[0028] Figure 3 This is an enlarged structural schematic diagram of the middle spacing adjustment mechanism of this utility model;

[0029] Figure 4 This is a perspective view of another embodiment of the automatic gluing machine of this utility model. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely represents selected embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0031] Example 1

[0032] This embodiment provides an automatic gluing machine, see reference. Figure 1 , 2 ,include:

[0033] The laminating machine body 1 serves as the support and foundation of the entire equipment. The laminating machine body 1 stably supports the other components, ensuring the stable operation of the equipment.

[0034] The transmission mechanism 9 is cleverly located on the upper surface of the laminating machine body 1. Its core components include a belt 2, a drive roller 3, and a drive motor. The belt 2 is tightly fitted to the surface of the drive roller 3, achieving synchronous movement through friction. The two ends of the drive roller 3 are mounted on fixed seats 4 via precision bearings, ensuring smooth and accurate transmission. The drive motor serves as the power source, providing continuous and stable rotational power to the drive roller 3, thereby driving the belt 2 and the pearl cotton above it for continuous transmission.

[0035] The fixed base 4, serving as a connecting bridge between the gantry structure 8 and the transmission mechanism 9, is firmly fixed to both sides of the transmission mechanism 9 by welding. Its unique design includes two parallel sliding rail seats 5 positioned on either side of the top of the laminator body 1. The sliding rail seats 5 have grooves, allowing for horizontal adjustment of the gantry structure 8.

[0036] The gantry structure 8 has a bottom that slides into a groove, allowing for easy adjustment of its horizontal position. After adjustment, it is secured with bolts, ensuring the stability and accuracy of the gantry structure 8. The design of the gantry structure 8 not only enhances the overall stability of the equipment but also facilitates the installation and adjustment of the roller assembly 7.

[0037] The roller assembly 7, as the core component of the hot melt adhesive coating operation, is cleverly mounted on the gantry frame at both ends via lifting mechanisms 6. The design of the lifting mechanism 6 allows for free adjustment of the vertical height of the roller assembly 7, thus adapting to the hot melt adhesive coating requirements of pearl cotton surfaces of different thicknesses and sizes. The surface of the roller assembly 7 is coated with a special high-temperature resistant and wear-resistant material, ensuring uniform hot melt adhesive coating and long-term equipment use.

[0038] Working principle and effect

[0039] During the operation of the automatic coating machine, EPE foam is first placed on the belt 2 of the conveyor mechanism 9. With the start of the drive motor, the transmission roller 3 continuously transports the belt 2 and the EPE foam above it. Simultaneously, the gantry structure 8 is adjusted to a suitable horizontal position according to actual needs and secured with bolts. Next, the lifting mechanism 6 adjusts the height of the roller assembly 7 according to the thickness of the EPE foam and the coating requirements. When the roller assembly 7 contacts the EPE foam on the surface of the conveyor mechanism 9, the hot melt adhesive on its surface melts rapidly under high temperature and is evenly coated onto the EPE foam surface. With the continuous transport of the EPE foam and the rotation of the roller assembly 7, the entire hot melt adhesive coating operation is completed efficiently and continuously.

[0040] This automatic coating machine is designed to not only improve the efficiency and precision of hot melt adhesive coating, but also significantly reduce the difficulty and cost of manual operation. Its unique lifting mechanism 6 and gantry structure 8 allow the equipment to easily adapt to the coating needs of pearl cotton of different sizes and shapes, thus meeting the increasingly diverse customer demands in the market. At the same time, the overall stability and durability of the equipment have been significantly improved, ensuring long-term, stable operation.

[0041] Example 2

[0042] Based on Example 1, a gantry structure 8 and a lifting mechanism 6 for an automatic glue applicator are further provided, aiming to provide more precise and stable adjustment functions to meet higher standards for hot melt adhesive coating.

[0043] The gantry structure 8, as the core supporting component of the automatic gluing machine, has undergone significant design optimization in this embodiment. Specifically, the gantry structure 8 includes a gantry-shaped frame. The bottom of this frame is equipped with a slide rail seat 5 that slides and engages with the slide rail seat 5, ensuring smooth horizontal sliding and precise positioning of the gantry structure 8. The top of the frame is designed as a robust top plate 802, providing stable support for the entire structure. Simultaneously, the sides of the frame are designed with vertical uprights 803. The two ends of the uprights 803 are fixedly connected to the slide rail seat 5 and the top plate 802 respectively through a precision welding process, further enhancing the overall stability and durability of the structure.

[0044] As a key component for adjusting the height of the roller assembly 7, the lifting mechanism 6 has also undergone significant design improvements in this embodiment. Specifically, the lifting mechanism 6 includes several vertically arranged guide columns 601. The two ends of these guide columns 601 are rotatably connected to the slide rail seat 5 and the top plate 802 respectively via bearings, ensuring smoothness and precision during the lifting process. The surfaces of the guide columns 601 are carefully threaded, providing a reliable driving force for the movement of the lifting slider 602. The lifting slider 602 and the guide columns 601 are connected by threads, ensuring stability and reliability during the lifting process.

[0045] More innovatively, a hand crank 603 is cleverly connected to the top of one of the guide posts 601, providing operators with an intuitive and convenient means of adjustment. By rotating the hand crank 603, the guide post 601 can be easily rotated, thereby driving the lifting slider 602 to move along the axis of the guide post 601 under the action of the thread. This design not only simplifies the adjustment process but also greatly improves the accuracy and stability of the adjustment.

[0046] Working principle:

[0047] During the operation of the automatic coating machine, the operator first adjusts the height of the lifting slider 602 by rotating the hand crank 603 according to the thickness of the pearl cotton and the coating requirements. As the hand crank 603 rotates, the lifting slider 602 on the guide column 601 moves along the axis of the guide column 601 under the action of the thread, thereby achieving precise adjustment of the height of the roller assembly 7. When the roller assembly 7 reaches the appropriate working spacing, the operator can stop rotating the hand crank 603 and fix the lifting slider 602 on the guide column 601 through the locking mechanism, ensuring the stability and accuracy of the coating operation.

[0048] As the conveying mechanism 9 operates continuously, the EPE foam is smoothly transported to the area below the roller assembly 7. The hot melt adhesive on the surface of the roller assembly 7 melts rapidly under high temperature and is evenly coated onto the EPE foam surface. The entire coating process is efficient, continuous, and produces stable and reliable coating quality.

[0049] Technical effects:

[0050] The automatic coating machine in this embodiment, through optimized design of the gantry structure 8 and lifting mechanism 6, not only improves the adjustment accuracy and stability of the equipment but also significantly reduces operating difficulty and cost. This innovative design allows the equipment to easily adapt to the coating needs of pearl cotton of different sizes and shapes, thereby meeting the increasingly diverse customer demands in the market. At the same time, the overall performance and durability of the equipment are also significantly improved, ensuring long-term, stable operation.

[0051] Example 3

[0052] Based on embodiments 1 and 2, a further embodiment of the roller assembly 7 is provided, aiming to achieve higher precision and flexibility in hot melt adhesive coating operations. The following is a detailed description of this embodiment:

[0053] The roller assembly 7 includes:

[0054] A heating roller 701 is provided, with a heating element inside. Both ends of the heating roller 701 are connected to the lifting slider 602. A heating plate 702 for placing hot glue blocks is also provided on one side of the heating roller 701. There is a gap between the heating plate 702 and the heating roller 701. The hot glue blocks are placed at an angle on the heating plate 702. The heating plate 702 is provided with a heating element inside. During operation, the hot melt glue blocks come into contact with the surface of the heating roller 701 under the action of the inclined surface of the heating plate 702. The surface of the hot melt glue blocks melts under the high temperature of the surfaces of the heating roller 701 and the heating plate 702. The melted hot melt glue adheres to the surface of the heating roller 701 under the action of the rotation of the heating roller 701. While the heating roller 701 rotates, the hot melt glue on its surface performs hot melt glue coating operation on the surface of the pearl cotton below.

[0055] Furthermore, one end of the heating drum 701 extends into the lifting slider 602. A base plate 604 is fixedly connected to one side of the lifting slider 602. A rotary motor 605 is fixed on the base plate 604. The rotor of the rotary motor 605 is connected to the end of the heating drum 701 via a belt 2 or a chain. Through the above, the drive motor can drive the heating drum 701 to rotate.

[0056] Furthermore, the spacing between the heating plate 702 and the heating roller 701 depends on the thickness of the hot melt adhesive to be applied to the surface of the pearl cotton. This spacing can be finely adjusted according to operational standards. A spacing adjustment mechanism 703 is also provided at both ends of the heating plate 702. (See also...) Figure 3 The mechanism includes a mounting plate 7031 fixedly connected to the upright 803, on which a pull rod 7032 is cleverly set for rotatable connection with the heating plate 702. The middle part of the pull rod 7032 is rotatably connected to the mounting plate 7031 via a bearing, while the end of the pull rod 7032 is threadedly connected to the mounting plate 7031. This design allows the operator to easily adjust the position of the pull rod 7032 by rotating the rotating wheel 7037 at the end of the pull rod 7032, thereby enabling fine-tuning of the distance between the heating plate 702 and the heating roller 701.

[0057] Furthermore, it includes a base plate and two side plates forming an L-shape. A bearing seat 7033 is installed on the base plate, through which the middle of the pull rod 7032 passes and is rotatably connected. The end of the pull rod 7032 passes through one of the side plates and is threadedly connected to it, ensuring stable and reliable adjustment.

[0058] Furthermore, both ends of the heating plate 702 are equipped with a spacing adjustment mechanism 703, and a linkage rod 7034 is cleverly arranged between the two mechanisms. After the end of the linkage rod 7034 passes through the side plate, it is connected to the pull rod 7032 through a helical gear mechanism. This design allows the pull rod 7032 of the other spacing adjustment mechanism 703 to rotate synchronously through the transmission action of the helical gear mechanism when the pull rod 7032 of one spacing adjustment mechanism 703 is operated, thus realizing the linkage adjustment of the spacing adjustment mechanisms 703 at both ends of the heating plate 702.

[0059] In some embodiments, the helical gear mechanism includes a first helical gear 7035 fixed in the middle of the pull rod 7032 and a second helical gear 7036 fixed in the end of the linkage rod 7034, wherein the first helical gear 7035 and the second helical gear 7036 are meshed together.

[0060] As is known, the heating element in this invention is a direct resistance heating element. A conductor material with high resistivity and high temperature resistance is selected as the base material of the heating element, such as nickel-chromium alloy or iron-chromium-aluminum alloy. The conductor material is processed into an appropriate shape, for example, it can be coiled tightly against the inner wall of the heating roller 701 or reciprocated in an array inside the heating plate 702.

[0061] Working principle:

[0062] During the operation of the automatic gluing machine, the operator can easily fine-tune the distance between the heating plate 702 and the heating roller 701 by rotating the rotating wheel 7037 in the spacing adjustment mechanism 703, according to the required thickness of hot melt adhesive to be applied to the surface of the pearl cotton. As the pull rod 7032 rotates, the position of the heating plate 702 changes accordingly, thereby achieving precise control of the spacing. At the same time, due to the linkage design, when one spacing adjustment mechanism 703 is operated, the other mechanism will also adjust synchronously, greatly improving the efficiency and accuracy of the adjustment.

[0063] Example 4

[0064] Based on embodiments 1, 2, and 3, a heating adhesive tank 10 is further provided on the top of the gantry frame to facilitate the replenishment of hot melt adhesive. (See attached document.) Figure 4 The details are as follows:

[0065] A rectangular opening is provided in the middle of the top plate. A heating glue tank 10 with a conical cross-section is connected below the rectangular opening. A rectangular glue outlet 11 is provided at the bottom of the heating glue tank. A baffle (not shown) is movably provided at the glue outlet 11 to close the heating glue tank 10 under normal conditions. A resistance heating device (not shown) is provided inside the side wall of the heating glue tank 10. It is known that the resistance heating device adopts a coiled resistance wire. When in use, the solid hot melt glue block is placed in the heating glue tank 10, the resistance heating device is turned on, the hot melt glue block is heated and melts into a liquid state. The liquid hot melt glue drips from the rectangular glue outlet at the bottom of the heating glue tank onto the inclined heating plate 702, and then flows to the surface of the heating roller 701. Under the rotation of the heating roller 701, it is coated on the surface of the pearl cotton.

[0066] It should be noted that all standard parts used in this utility model can be purchased from the market, and can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding, which are mature technologies in the prior art. The machinery, parts, and equipment all adopt conventional models in the prior art, and the structure and principle of components known to those skilled in the art can be learned by those skilled in the art through technical manuals or conventional experimental methods. In addition, the electronic components and corresponding electronic circuits involved in this application are all prior art, which can be fully implemented by those skilled in the art, and need not be elaborated. The content protected by this utility model does not involve the improvement of software, algorithms, and methods.

[0067] The above-described embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. An automatic gluing machine, characterized in that, include: Glue laminator body (1); The transmission mechanism (9) is set on the upper surface of the glue applicator body (1), and the pearl cotton is on the transmission mechanism (9); The fixed base (4) is welded and fixed on both sides of the transmission mechanism (9), and the fixed base (4) is provided with a sliding groove; The bottom of the gantry structure (8) is slidably connected to the slide groove; the gantry structure (8) is adjusted to a horizontal position along the slide groove and fixed by bolts; The roller assembly (7) is mounted on the gantry frame at both ends via lifting mechanisms (6).

2. The automatic gluing machine according to claim 1, characterized in that, The transmission mechanism (9) includes a belt (2), a transmission roller (3) and a drive motor. The belt (2) is in contact with the surface of the transmission roller (3), and the two ends of the transmission roller (3) are mounted on the fixed seat (4) through bearings.

3. An automatic gluing machine according to claim 1, characterized in that, The fixed base (4) includes two slide rails (5) arranged in parallel on both sides of the top of the glue machine body (1), and the slide rails (5) are provided with slide grooves.

4. An automatic gluing machine according to claim 3, characterized in that, The gantry structure (8) includes: a gantry-shaped frame, a slider (801) that cooperates with the slide rail seat (5) at the bottom of the frame, a top plate (802) at the top of the frame, and vertical poles (803) on the side of the frame. The two ends of the poles (803) are fixedly connected to the slide rail seat (5) and the top plate (802) respectively.

5. An automatic gluing machine according to claim 4, characterized in that, The lifting mechanism (6) includes: a plurality of guide columns (601) between the top plate (802) and the slide rail seat (5). The guide columns (601) are arranged vertically, and their two ends are rotatably connected to the slide rail seat (5) and the top plate (802) respectively through bearings. The surface of the guide column (601) is provided with threads, and a lifting slider (602) is threadedly connected to the guide column (601). A hand crank (603) is connected to the top of one of the guide columns (601).

6. An automatic gluing machine according to claim 5, characterized in that, The roller assembly (7) includes: a heating roller (701), which is provided with a heating element inside. Both ends of the heating roller (701) are connected to the lifting slider (602). A heating plate (702) for placing hot glue blocks is also provided on one side of the heating roller (701). There is a gap between the heating plate (702) and the heating roller (701). The hot glue blocks are placed obliquely on the heating plate (702). A heating element is provided inside the heating plate (702).

7. An automatic gluing machine according to claim 6, characterized in that, A spacing adjustment mechanism (703) is provided at both ends of the heating plate (702), including a mounting plate (7031) fixedly connected to the upright (803). A pull rod (7032) rotatably connected to the heating plate (702) is provided on the mounting plate (7031). The middle part of the pull rod (7032) is rotatably connected to the mounting plate (7031) through a bearing. The end of the pull rod (7032) is threadedly connected to the mounting plate (7031). A rotating wheel (7037) is connected to the end of the pull rod (7032) through the mounting plate (7031).

8. An automatic gluing machine according to claim 7, characterized in that, The mounting plate (7031) includes a base plate and side plates. A bearing seat (7033) is provided on the base plate. The middle part of the tie rod (7032) passes through the bearing seat (7033) and is rotatably connected to it. There are two side plates, which are arranged in an L shape. The end of the tie rod (7032) passes through one of the side plates and is threaded to it.

9. An automatic gluing machine according to claim 8, characterized in that, A linkage rod (7034) is provided between the two spacing adjustment mechanisms (703). The end of the linkage rod (7034) passes through the side plate and is connected to the pull rod (7032) through a helical gear mechanism.

10. An automatic gluing machine according to claim 9, characterized in that, The helical gear mechanism includes a first helical gear (7035) fixed in the middle of the pull rod (7032) and a second helical gear (7036) fixed in the end of the linkage rod (7034), wherein the first helical gear (7035) and the second helical gear (7036) are meshed together.

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