Middle layer rubberizing device and three-layer material non-stop reloading equipment

Abstract

The utility model relates to the technical field of non-stop material changing, in particular to a middle layer rubberizing device and three-layer material non-stop material changing equipment, the device comprises a paper guide assembly, a rubber coating assembly and a rubber coating assembly, the paper guide assembly comprises a paper guide roller, and a material belt passes through the paper guide roller in a wrapping mode; the waste discharge assembly comprises a waste discharge shovel which is arranged at the front end of the paper guide assembly; the recognition assembly is arranged towards the waste discharge assembly and comprises a color code sensor; the adhesive tape pasting assembly comprises a negative pressure adsorption roller capable of adsorbing the adhesive tape, adsorption holes are formed in the adsorption roller, and the negative pressure adsorption roller can move in the direction close to or away from the paper guide roller; an adhesive tape is preset on the negative pressure adsorption roller, and the negative pressure adsorption roller is configured to move to be attached to the paper guide roller and move synchronously with the paper guide roller after the color code sensor detects the adhesive tape on the surface layer of the three-layer material belt, so that the adhesive tape on the negative pressure adsorption roller is attached to the middle material belt excluding the bottom-layer material belt. According to the utility model, the automatic bonding of the middle layer is realized without manual participation, the continuous operation is realized, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of non-stop material replacement, in particular to an intermediate layer glue sticking device and non-stop material replacement equipment for three layers of materials. Background Art

[0002] The non-stop material changing device is a key equipment widely used in continuous production lines. It is designed to achieve rapid switching between different material rolls or strips without stopping the production line to improve production efficiency.

[0003] In the related art, the uninterrupted material replacement for single-layer or double-layer materials is already quite mature. For example, the Chinese invention patent application with publication number CN118666057A on September 20, 2024 disclosed a non-stop material discharge device, which can realize the double-sided bonding of new and old materials that need to be connected through the setting of the material connection component. This device can not only bond the upper and lower sides of single-layer materials, but also realize the bonding of double-layer materials; however, for three-layer materials including an intermediate layer, it can only be operated manually at present. When performing the connection, such as Figure 1 As shown in , the material needs to be cut into steps manually, and then the tape is applied to each layer separately.

[0004] However, the above manual operation method requires frequent shutdown operations, resulting in low work efficiency. Utility Model Content

[0005] In view of at least one of the above technical problems, the present invention provides an intermediate layer gluing device and a three-layer material non-stop material changing device, which adopts structural improvements to achieve intermediate layer gluing and thus improve production efficiency.

[0006] According to a first aspect of the present invention, there is provided an intermediate layer gluing device, comprising:

[0007] A paper guide assembly, comprising a paper guide roller, over which the material strip is wrapped;

[0008] A waste discharge assembly, including a waste discharge shovel, is provided at the front end of the paper guide assembly and is used to discharge waste from the outer layer of the three-layer material strip;

[0009] an identification component, disposed toward the waste discharge component, comprising a color code sensor for identifying the adhesive tape where the surface layers of the three-layer material strips are bonded and butted;

[0010] The adhesive laminating assembly includes a negative pressure adsorption roller capable of adsorbing the adhesive tape, the adsorption roller having adsorption holes, and the negative pressure adsorption roller can move toward or away from the paper guide roller;

[0011] Among them, the negative pressure adsorption roller is pre-installed with a tape, and the negative pressure adsorption roller is configured to move to be in contact with the paper guide roller and move synchronously after the color mark sensor detects the tape on the surface of the three-layer material tape, so that the tape on the negative pressure adsorption roller is attached to the middle material tape excluding the bottom layer material tape.

[0012] In some embodiments of the present invention, the paper guide assembly also includes a bracket, the paper guide roller is rotatably connected to the bracket, at least one end of the paper guide roller has a first gear that rotates synchronously with the paper guide roller, and the same end of the negative pressure adsorption roller has a second gear corresponding to the first gear, and when the negative pressure adsorption roller is in contact with the paper guide roller, the first gear is engaged with the second gear.

[0013] In some embodiments of the present invention, the bracket includes two parallel vertical plates and a horizontal plate with two ends vertically connected to the two vertical plates, and the two vertical plates have connecting members for fixing the bracket.

[0014] In some embodiments of the present invention, the waste discharge assembly also includes a connecting frame, which includes two swing arms connected to the bracket and a rotating shaft fixed to the free ends of the two swing arms. The waste discharge shovel is connected to the rotating shaft, and the connection angle between the two swing arms and the bracket can be adjusted.

[0015] In some embodiments of the present invention, the connecting frame further has a connecting clamp, which is wrapped around and connected to the rotating shaft. The waste shovel is fixed on the connecting clamp, and the degree of clamping between the connecting clamp and the rotating shaft can be adjusted.

[0016] In some embodiments of the present invention, the identification component also includes a mounting bracket, which includes a connecting seat connected to the bracket, a connecting shaft fixedly connected to the connecting seat, and a mounting seat fixed to the end of the connecting shaft. The color mark sensor is connected to the mounting seat, and the connecting seat has a straight hole and is connected to the bracket through a fastener.

[0017] In some embodiments of the present invention, the connection angle of the mounting seat on the connecting shaft can be adjusted, and the mounting seat also has a distance adjustment frame, a polished rod fixed on the distance adjustment frame, a slider that can be relatively slidably connected to the polished rod, and an adjustment bolt screwed on the slider for adjusting the position of the slider, and the color mark sensor is fixed on the slider.

[0018] In some embodiments of the present invention, the adhesive application assembly further includes a slide rail vertically connected to the bracket, a support base movably connected to the slide rail, and a driving member fixed to the bracket and connected to the support base;

[0019] The negative pressure adsorption roller is relatively rotatably connected to the support seat. The support seat is provided with an air nozzle connected to the interior of the negative pressure adsorption roller. The driving member is used to drive the support seat to approach or move away from the paper guide roller.

[0020] In some embodiments of the present invention, an inner tube connected to the air nozzle is fixed on the support seat, the negative pressure adsorption roller is rotatably connected to the inner tube, and the inner tube has an air hole connected to the interior of the negative pressure adsorption roller.

[0021] According to the second aspect of the present invention, a three-layer material non-stop material changing device is provided, including the intermediate layer gluing device as mentioned above. The device also includes a pressing roller, which is arranged close to the paper guide roller of the intermediate layer gluing device and is used to attach the base paper.

[0022] The beneficial effects of the present invention are as follows: the present invention peels off the surface layer of the three-layer material strip to expose the middle docking layer through the arrangement of the waste discharge shovel in the waste discharge component, and then sets the color code sensor toward the waste discharge component so that after the surface tape is identified, the negative pressure adsorption roller and the paper guide roller in the gluing component are fitted together, so that the tape pre-set on the negative pressure adsorption roller bonds the middle layer; compared with the existing technology, the middle layer is automatically bonded without manual intervention, continuous operation is achieved, and production efficiency is improved. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0024] Figure 1 This is a schematic diagram of the docking structure of three layers of material strips in an embodiment of the present utility model;

[0025] Figure 2 This is a schematic structural diagram of the intermediate layer gluing device in an embodiment of the present utility model;

[0026] Figure 3 This is a side view of the intermediate layer gluing device in an embodiment of the present utility model;

[0027] Figure 4 This is a schematic diagram of the working process of the intermediate layer gluing device in the embodiment of the present utility model;

[0028] Figure 5 This is a structural diagram of the paper guide assembly and the glue sticking assembly in the embodiment of the present invention in a coordinated state;

[0029] Figure 6 This is a schematic structural diagram of a waste discharge assembly in an embodiment of the present utility model;

[0030] Figure 7 This is a schematic diagram of the mechanism of the identification component in the embodiment of the present utility model;

[0031] Figure 8 In the embodiment of the present utility model Figure 7 A partial enlarged view of point A in the middle;

[0032] Figure 9 This is a structural diagram of the adhesive assembly in an embodiment of the present utility model;

[0033] Figure 10 This is a side view of the adhesive component in the embodiment of the utility model;

[0034] Figure 11 In the utility model embodiment Figure 10 Cross-sectional view along the BB direction;

[0035] Figure 12 It is a front view of the equipment for changing materials without stopping the three layers of materials in the embodiment of the utility model.

[0036] Explanation of the accompanying reference numerals: 1. Paper guide assembly; 11. Paper guide roller; 11a. First gear; 12. Bracket; 12a. Vertical plate; 12b. Horizontal plate; 12c. Connecting part; 2. Waste discharge assembly; 21. Waste discharge shovel; 22. Connecting frame; 22a. Swing arm; 22b. Rotating shaft; 22c. Connecting clamp; 3. Identification assembly; 31. Color mark sensor; 32. Mounting frame; 32a. Connecting seat; 32a1. Slotted hole; 32b. Connecting shaft; 32c. Mounting seat; 32c1. Adjusting frame; 32c2. Polished rod; 32c3. Sliding block; 32c4. Adjusting bolt; 4. Gluing assembly; 41. Negative pressure adsorption roller; 411. Second gear; 41a. Adsorption hole; 42. Slide rail; 43. Support seat; 43a. Air nozzle; 43b. Inner tube; 43b1. Air hole; 44. Driving part; 5. Pressing roller. DETAILED DESCRIPTION

[0037] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0038] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly attached to the other element or there may be an intermediate element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation methods.

[0039] Unless otherwise defined, all technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art to which this invention pertains. The terms used in this specification are for the purpose of describing specific embodiments only and are not intended to limit this invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0040] like Figures 2 to 11 The intermediate layer gluing device shown includes: a paper guiding component 1, a waste discharge component 2, an identification component 3 and a gluing component 4. The paper guide assembly 1 includes a paper guide roller 11, and the material strip is wrapped around the paper guide roller 11; the waste discharge assembly 2 includes a waste discharge shovel 21, which is arranged at the front end of the paper guide assembly 1 and is used to discharge the outer layer of the three-layer material strip; the identification assembly 3 is arranged toward the waste discharge assembly 2, and includes a color mark sensor 31, which is used to identify the adhesive tape on the surface of the three-layer material strip that is adhered and connected; the gluing assembly 4 includes a negative pressure adsorption roller 41 that can adsorb the adhesive tape, and the adsorption roller has an adsorption hole 41a, and the negative pressure adsorption roller 41 can move in a direction close to or away from the paper guide roller 11; wherein, the negative pressure adsorption roller 41 is pre-installed with adhesive tape, and the negative pressure adsorption roller 41 is configured to move to be in contact with the paper guide roller 11 and move synchronously after the color mark sensor 31 detects the adhesive tape on the surface of the three-layer material strip, so that the adhesive tape on the negative pressure adsorption roller 41 is attached to the middle material strip excluding the bottom layer material strip. Figures 2 to 4As shown, the paper guide roller 11 is responsible for supporting and guiding the transport of the three-layer material, ensuring that the material strips follow a predetermined path. The color mark sensor 31 in the identification component 3 detects the adhesive tape on the surface of the three-layer material strips, providing an identification signal to trigger subsequent operations. The negative pressure suction roller 41 can move toward or away from the paper guide roller 11 to perform the gluing function. During operation, the three-layer material strips are conveyed by the paper guide roller 11 in the paper guide assembly 1. The waste shovel 21 in the waste discharge assembly 2 peels off the bottom layer of material strips, while the remaining middle layer of material strips continue to be transported forward. The three-layer material strips use adhesive tape of a different color. The identification component 3 detects the position of the adhesive tape on the surface of the material strips through the color mark sensor 31 and generates a signal. The negative pressure suction roller 41 pre-adsorbs the adhesive tape and, after the color mark sensor 31 generates a detection signal, moves to a position aligned with the paper guide roller 11 and rotates synchronously with the middle layer of material strips. The adhesive tape, with its adhesive surface facing outward, is attached to the middle layer of material stripped from the bottom layer during the synchronous rotation, completing the gluing operation. It should be pointed out here that in the embodiment of the present invention, there are many ways to drive the negative pressure adsorption roller 41 to move, for example, it can be achieved by using a cylinder, a hydraulic cylinder, a gear rack or a motor screw nut seat, etc., which will be explained in detail in the following part of the embodiment of the present invention.

[0041] In the above embodiment, by setting the waste shovel in the waste discharge component, the surface layer of the three-layer material tape is peeled off to expose the middle docking layer, and then the color code sensor is set towards the waste discharge component, so that after the surface tape is identified, the negative pressure adsorption roller and the paper guide roller in the glue sticking component are fitted together, so that the tape pre-installed on the negative pressure adsorption roller bonds the middle layer; compared with the existing technology, the middle layer is automatically bonded without human intervention, continuous operation is achieved, and production efficiency is improved.

[0042] On the basis of the above embodiment, in order to improve the sticking effect of the tape, as Figure 5 As shown in , in some embodiments of the present invention, the paper guide assembly 1 further includes a bracket 12, the paper guide roller 11 is rotatably connected to the bracket 12, at least one end of the paper guide roller 11 has a first gear 11a that rotates synchronously with the paper guide roller 11, and the same end of the negative pressure adsorption roller 41 has a second gear 411 that is arranged corresponding to the first gear 11a. When the negative pressure adsorption roller 41 is in contact with the paper guide roller 11, the first gear 11a is meshed with the second gear 411. Please continue to refer to Figure 5The bracket 12 is used to fix the paper guide roller 11 and provide support for the rotational connection so that the paper guide roller 11 can run smoothly. The first gear 11a is used to transmit the rotational motion of the paper guide roller 11 to other components to achieve power linkage. When the negative pressure adsorption roller 41 moves to the position of contact with the paper guide roller 11, the first gear 11a engages with the second gear 411 to achieve synchronous rotation between the paper guide roller 11 and the negative pressure adsorption roller 41. After the first gear 11a and the second gear 411 are engaged, the paper guide roller 11 and the negative pressure adsorption roller 41 maintain consistent linear speed and rotation direction, ensuring that the tape is correctly positioned and does not slip during the attachment process. At this time, the tape on the surface of the negative pressure adsorption roller 41 is attached to the intermediate material belt. During this process, the meshing design of the first gear 11a and the second gear 411 ensures that the paper guide roller 11 and the negative pressure adsorption roller 41 achieve completely synchronous rotation, avoiding problems such as offset or uneven gluing caused by speed mismatch.

[0043] In the embodiment of the present invention, in order to improve the installation convenience of the bracket 12, please continue to refer to Figure 5 The bracket 12 includes two parallel vertical plates 12a and two horizontal plates 12b connected perpendicularly to the two vertical plates 12a at both ends. The two vertical plates 12a have connecting members 12c for fixing the bracket 12. Figure 5 The bracket 12 is composed of two parallel vertical plates 12a, and a fixed distance is maintained between the vertical plates 12a, which are used to support and install the paper guide roller 11 and other related components. The connector 12c on the vertical plate 12a is used to firmly fix the bracket 12 on the device body or the operating platform to ensure the stability of the overall structure. The horizontal plate 12b is vertically connected to the vertical plate 12a to prevent the vertical plate 12a from tilting or deforming during force or movement. There are many structural forms of the connector 12c, and those skilled in the art can set it according to their needs. In addition, the connection method of the connector 12c can be in the form of threaded connection, snap connection or welding, etc. The specific method is determined according to the actual application requirements and will not be repeated here.

[0044] In the embodiment of the present invention, in order to improve the reliability of the waste shovel 21 and the flexibility of adjustment, Figure 6 As shown in FIG, the waste discharge assembly 2 further includes a connecting frame 22, which includes two swing arms 22a connected to the bracket 12 and a rotating shaft 22b fixed to the free ends of the two swing arms 22a. The waste discharge shovel 21 is connected to the rotating shaft 22b. The connection angle between the two swing arms 22a and the bracket 12 can be adjusted. It should be noted that the connection angle of the swing arms 22a can be adjusted in various forms, for example, Figure 6 As shown in the figure, the swing arm 22a is fixed by a fastener. When the angle of the waste shovel 21 needs to be adjusted, the fastener is loosened, and the swing arm 22a is rotated to the set angle and then the fastener is tightened.

[0045] In order to further achieve the adjustment effect of the waste discharge component 2, please continue to refer to Figure 6 The connecting frame 22 also has a connecting clamp 22c, which is connected to the rotating shaft 22b. The waste shovel 21 is fixed to the connecting clamp 22c. The degree of tightness between the connecting clamp 22c and the rotating shaft 22b can be adjusted. The adjustable degree of tightness here can be specifically as follows: Figure 6 As shown in , the connecting clamp 22c is in the shape of a hoop, and the clamping gap of the hoop is adjusted by bolts; please continue to refer to Figure 6 , the connecting clamp 22c is wrapped around and connected to the rotating shaft 22b. While fixing the waste shovel 21, the installation position of the waste shovel 21 can also be precisely adjusted by adjusting the degree of clamping. Among them, the structure of the connecting clamp 22c can be a threaded adjustment, a snap mechanism, etc. The waste shovel 21 is fixed on the connecting clamp 22c. As the position or angle of the connecting clamp 22c is adjusted, the waste shovel 21 can accurately fit the material strip to ensure a smooth and efficient peeling action. During work, if it is necessary to change the angle or position of the waste shovel 21, the connecting clamp 22c can be loosened for fine-tuning, and then clamped again to fix the new position. The clamping setting of the connecting clamp 22c and the rotating shaft 22b provides an efficient and flexible adjustment and fixing method for the waste discharge component 2, making the installation of the waste shovel 21 more convenient and the adjustment more precise.

[0046] In the embodiment of the present invention, in order to adjust the position and angle of the color mark sensor 31, as shown in FIG. Figure 7 As shown in , the identification assembly 3 also includes a mounting bracket 32, which includes a connecting base 32a connected to the bracket 12, a connecting shaft 32b fixedly connected to the connecting base 32a, and a mounting base 32c fixed to the end of the connecting shaft 32b. The color mark sensor 31 is connected to the mounting base 32c. The connecting base 32a has a straight hole 32a1 and is connected to the bracket 12 via a fastener. In the embodiment of the present invention, the straight hole 32a1 is a sliding groove structure for position adjustment. The fastener passes through the straight hole 32a1 and is fixed to the bracket 12. By sliding adjustment within the hole, the position of the connecting base 32a can be fine-tuned along the direction of the straight hole 32a1, thereby optimizing the working position of the color mark sensor 31. Through the above arrangement, a stable and flexible installation method is provided for the color mark sensor 31. Position adjustment is achieved through the straight hole 32a1 and the fastener, optimizing detection efficiency and debugging convenience.

[0047] Furthermore, in the embodiment of the present invention, a further adjustment structure is designed for the position and angle of the color mark sensor 31, specifically as follows: Figure 8As shown in FIG, the mounting seat 32c is configured to have an adjustable angle of connection to the connecting shaft 32b. The mounting seat 32c also includes a distance adjustment frame 32c1, a polished rod 32c2 fixed to the distance adjustment frame 32c1, a slider 32c3 slidably connected to the polished rod 32c2, and an adjustment bolt 32c4 screwed to the slider 32c3 for adjusting the position of the slider 32c3. The color mark sensor 31 is fixed to the slider 32c3. It should be noted that the angle-adjustable connection between the mounting seat 32c and the connecting shaft 32b can be realized in a variety of structural forms. For example, the aforementioned clamping structure can be used, or a bolted structure can be used to increase friction with the connecting shaft 32b, allowing the mounting seat 32c to rotate a certain angle around the connecting shaft 32b to accommodate different operating angles or detection directions of the material strip. The distance adjustment frame 32c1 provides a fixed guide and sliding path for the slider 32c3. Polished rod 32c2 is fixedly mounted on the distance adjustment frame 32c1, providing a sliding guide for slider 32c3. Its smooth surface ensures that slider 32c3 can slide smoothly along its direction. Slider 32c3 is slidably connected to polished rod 32c2 and can achieve linear movement under the guidance of polished rod 32c2 to adjust the specific position of color mark sensor 31. Adjustment bolt 32c4 is threaded onto slider 32c3 to control the sliding position of slider 32c3 on polished rod 32c2. By rotating adjustment bolt 32c4, the movement distance of slider 32c3 along polished rod 32c2 can be precisely adjusted, thereby adjusting the position of color mark sensor 31. When the position of color mark sensor 31 needs to be adjusted, adjustment bolt 32c4 rotates to drive slider 32c3 to slide along polished rod 32c2, achieving precise positioning of color mark sensor 31. After adjustment, color mark sensor 31 is fixed to slider 32c3, facing the material belt running area, and optically detects the tape color mark signal on the material belt surface. This product's angle adjustment, distance adjustment frame 32c1, polished rod 32c2, slider 32c3, and adjustment bolt 32c4, along with the color mark sensor 31 of the recognition component 3, enable multi-dimensional adjustment. This not only improves installation flexibility and detection accuracy, but also enhances the device's applicability and operational efficiency.

[0048] In the embodiment of the present invention, please refer to the driving structure of the negative pressure adsorption roller 41. Figure 9 and Figure 10The gluing assembly 4 also includes a slide rail 42 vertically connected to the bracket 12, a support seat 43 relatively movably connected to the slide rail 42, and a driving member 44 fixed to the bracket 12 and connected to the support seat 43; the negative pressure adsorption roller 41 is relatively rotatably connected to the support seat 43, and the support seat 43 has an air nozzle 43a connected to the inside of the negative pressure adsorption roller 41, and the driving member 44 is used to drive the support seat 43 to move closer to or away from the paper guide roller 11. In an embodiment of the present utility model, the slide rail 42 is fixedly mounted vertically on the bracket 12, providing a linear motion guide structure for the support seat 43. A rotating connection structure is provided on the support seat 43, so that the negative pressure adsorption roller 41 can rotate freely on the support seat 43 to cooperate with the gluing action. The air nozzle 43a is connected to the inside of the negative pressure adsorption roller 41, providing a negative pressure air flow channel for the adsorption roller. The driving member 44 is fixed on the bracket 12 and connected to the support seat 43 to provide mechanical power to drive the support seat 43 to move along the slide rail 42. The driving member 44 can be an electric push rod, a cylinder or other linear drive device, which can be selected according to actual needs. The driving member 44 controls the support seat 43 to move closer to or away from the paper guide roller 11, thereby realizing the position adjustment of the negative pressure adsorption roller 41 during the gluing process. During operation, the support base 43 is fixed to its initial position on the slide rail 42. The negative pressure suction roller 41 is connected to the support base 43 and is positioned away from the paper guide roller 11. The negative pressure system provides negative pressure airflow to the suction roller via the air nozzle 43a, stably adsorbing the tape to its surface. The drive 44 is activated, pushing the support base 43 along the slide rail 42, causing the negative pressure suction roller 41 to gradually approach the paper guide roller 11. Once the suction roller contacts the paper guide roller 11, the two rotate synchronously, allowing the tape on the suction roller surface to be precisely adhered to the intermediate layer of material. After the gluing is complete, the drive 44 controls the support base 43 to move away from the paper guide roller 11, and the negative pressure suction roller 41 returns to its initial position. Throughout the gluing process, the support base 43 continuously provides negative pressure to the suction roller via the air nozzle 43a, ensuring stable adsorption of the tape. After the gluing is complete, the negative pressure system is turned off, releasing the tape. This product enables the gluing component 4 to have the ability to adjust and operate stably, especially the drive control and airflow support of the negative pressure adsorption roller 41, which ensures efficient adsorption and precise attachment of the tape, significantly improving the production efficiency of the equipment.

[0049] In the embodiment of the present invention, please refer to the specific structure of the negative pressure adsorption roller 41. Figure 11 The support seat 43 is also fixed with an inner tube 43b connected to the air nozzle 43a, and the negative pressure adsorption roller 41 is rotatably connected to the inner tube 43b. The inner tube 43b has an air hole 43b1 connected to the inside of the negative pressure adsorption roller 41. Figure 11As shown, inner tube 43b is the airflow conducting component, directly connected to air nozzle 43a on support base 43. Inner tube 43b is provided with air hole 43b1, which communicates with the negative pressure chamber inside negative pressure suction roller 41. Negative pressure suction roller 41 is mounted on inner tube 43b and can rotate freely around inner tube 43b. The negative pressure chamber inside the suction roller is connected to air nozzle 43a via air hole 43b1 on inner tube 43b. During rotation, inner tube 43b remains stationary, while the suction roller rotates around inner tube 43b, while the negative pressure airflow is continuously supplied, unaffected by the roller's movement. Air nozzle 43a is connected to inner tube 43b through support base 43 and serves as the air supply port for the negative pressure system. Negative pressure airflow is provided by inner tube 43b and the suction roller. During operation, the air nozzle 43a transmits the negative pressure airflow to the inner tube 43b on the support base 43. The inner tube 43b introduces the negative pressure airflow into the interior of the negative pressure adsorption roller 41 through the air hole 43b1, forming a negative pressure area in the adsorption holes 41a on the surface of the adsorption roller, firmly adsorbing the tape. The negative pressure adsorption roller 41 rotates around the fixed inner tube 43b, operating synchronously with the paper guide roller 11. As the adsorption roller rotates, the air hole 43b1 continuously introduces the negative pressure airflow, ensuring that the adsorption effect on the surface of the negative pressure adsorption roller 41 remains stable. The adhesive tape is firmly adsorbed by the negative pressure adsorption roller 41 and attached to the middle layer of material through the rotation of the adsorption roller, completing the gluing process. This configuration achieves efficient airflow conduction and stable adsorption functions of the negative pressure adsorption roller 41, which not only improves the reliability of tape adsorption, but also ensures the adsorption effect of the adsorption roller during movement, improving the operational stability of the equipment.

[0050] In an embodiment of the present invention, there is also provided a Figure 12The three-layer material non-stop material changing equipment shown in the figure includes the intermediate layer gluing device as mentioned above, and the equipment also includes a pressure roller 5. The pressure roller 5 is arranged near the paper guide roller 11 of the intermediate layer gluing device and is used to attach the base paper. It should be pointed out here that the main function of the pressure roller 5 is to attach the base paper and to fix the tape on the surface of the base paper. The pressure roller 5 ensures that the tape can be firmly adhered to the base paper by applying appropriate pressure to the base paper, and prevents the tape from being separated from the base paper due to insufficient pressure. The pressure roller 5 is arranged near the paper guide roller 11 of the intermediate layer gluing device, so that the base paper can be attached quickly during the process of the tape being adsorbed and attached to the intermediate material belt, thereby reducing the chance of the intermediate layer being contaminated. The pressure roller 5 increases the adhesion between the tape and the base paper by applying continuous pressing action on the base paper. During the operation of this equipment, the base paper is transported through the cooperation of the paper guide roller 11 and the pressure roller 5. Pressure is applied to the base paper as it passes through the pressure roller 5, ensuring that the tape can be stably attached to the base paper. Under the action of the middle layer gluing device, the tape is first adsorbed by the negative pressure adsorption roller 41, then the unnecessary layer is peeled off through the waste discharge component 2, and finally the tape is attached to the middle material belt through synchronous action. When the base paper passes through the pressure roller 5, the pressure provided by the pressure roller 5 presses the base paper surface with the tape, making the tape firmly adhere to the base paper surface. After the tape is attached to the base paper, it continues to move forward and adheres to the middle layer material belt, completing the processing of the three layers of material. Throughout the gluing process, the transmission system of the base paper and the middle layer material belt can realize non-stop material change, ensuring that even during the process of changing materials, the machine can still operate smoothly and will not stop to wait for the operator to change materials. This equipment combines the middle layer gluing device with the pressure roller 5 and uses non-stop material change technology to achieve efficient and continuous processing of three layers of materials. The pressure roller 5 ensures the stable bonding between the base paper and the tape, while the middle layer gluing device accurately completes the tape attachment work, which not only improves production efficiency and reduces downtime, but also ensures the bonding quality.

[0051] Those skilled in the art should understand that the present invention is not limited to the above-described embodiments. The above-described embodiments and the specification are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. An intermediate layer gluing device, characterized in that: include: A paper guide assembly, comprising a paper guide roller, over which the material strip is wrapped; A waste discharge assembly, including a waste discharge shovel, is provided at the front end of the paper guide assembly and is used to discharge waste from the outer layer of the three-layer material strip; an identification component, disposed toward the waste discharge component, comprising a color code sensor for identifying the adhesive tape where the surface layers of the three-layer material strips are bonded and butted; The adhesive laminating assembly includes a negative pressure adsorption roller capable of adsorbing the adhesive tape, the adsorption roller having adsorption holes, and the negative pressure adsorption roller can move toward or away from the paper guide roller; Among them, the negative pressure adsorption roller is pre-installed with a tape, and the negative pressure adsorption roller is configured to move to be in contact with the paper guide roller and move synchronously after the color mark sensor detects the tape on the surface of the three-layer material tape, so that the tape on the negative pressure adsorption roller is attached to the middle material tape excluding the bottom layer material tape.

2. The intermediate layer gluing device according to claim 1, characterized in that: The paper guide assembly also includes a bracket, the paper guide roller is rotatably connected to the bracket, and at least one end of the paper guide roller has a first gear that rotates synchronously with the paper guide roller. The same end of the negative pressure adsorption roller has a second gear arranged corresponding to the first gear. When the negative pressure adsorption roller is in contact with the paper guide roller, the first gear is engaged with the second gear.

3. The intermediate layer gluing device according to claim 2, characterized in that: The bracket includes two parallel vertical plates and a horizontal plate with two ends vertically connected to the two vertical plates. The two vertical plates are provided with connecting pieces for fixing the bracket.

4. The intermediate layer gluing device according to claim 2, characterized in that: The waste discharge assembly also includes a connecting frame, which includes two swing arms connected to the bracket and a rotating shaft fixed to the free ends of the two swing arms. The waste discharge shovel is connected to the rotating shaft, and the connection angle between the two swing arms and the bracket can be adjusted.

5. The intermediate layer gluing device according to claim 4, characterized in that: The connecting frame is further provided with a connecting clip, which is connected to the rotating shaft in a hugging manner. The waste shovel is fixed on the connecting clip, and the degree of hugging between the connecting clip and the rotating shaft can be adjusted.

6. The intermediate layer gluing device according to claim 2, characterized in that: The identification component also includes a mounting bracket, which includes a connecting seat connected to the bracket, a connecting shaft fixedly connected to the connecting seat, and a mounting seat fixed to the end of the connecting shaft. The color mark sensor is connected to the mounting seat. The connecting seat has a straight hole and is connected to the bracket through a fastener.

7. The intermediate layer gluing device according to claim 6, characterized in that: The connection angle of the mounting seat on the connecting shaft can be adjusted. The mounting seat also has a distance adjustment frame, a polished rod fixed on the distance adjustment frame, a slider slidably connected to the polished rod, and an adjustment bolt screwed on the slider for adjusting the position of the slider. The color mark sensor is fixed on the slider.

8. The intermediate layer gluing device according to claim 2, characterized in that: The glue application assembly further includes a slide rail vertically connected to the bracket, a support base movably connected to the slide rail, and a driving member fixed to the bracket and connected to the support base; The negative pressure adsorption roller is relatively rotatably connected to the support seat. The support seat is provided with an air nozzle connected to the interior of the negative pressure adsorption roller. The driving member is used to drive the support seat to approach or move away from the paper guide roller.

9. The intermediate layer gluing device according to claim 8, characterized in that: An inner tube connected to the air nozzle is also fixed on the support seat, and the negative pressure adsorption roller is rotatably connected to the inner tube. The inner tube has an air hole connected to the interior of the negative pressure adsorption roller.

10. A three-layer material non-stop material changing equipment, characterized in that: The device comprises an intermediate layer gluing device as claimed in any one of claims 1 to 9, and further comprises a pressing roller, which is arranged close to the paper guide roller of the intermediate layer gluing device and is used for attaching the base paper.

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