Automatic adhesive tape feeding system and control method thereof

Abstract

The invention discloses an automatic adhesive tape feeding system and a control method thereof.The automatic adhesive tape feeding system comprises two stations and a movable splicer, each station is rotationally provided with a material roll, one side of each station is provided with a detection part used for detecting whether the material roll is used up or not, and the output side of each material roll is provided with a first adsorption part and a pressing part; the movable splicer is arranged between the two stations in a sliding mode and provided with a cutting piece and a second adsorption piece. According to the system, the use condition of materials is monitored in real time through the detection pieces on the stations, when it is detected that the material rolls are used up, the system automatically starts the switching process, the problem of shutdown caused by material roll replacement is thoroughly solved, continuous production of equipment is guaranteed, the production efficiency of the equipment is remarkably improved, meanwhile, the frequency and labor intensity of manual intervention are reduced, and the production efficiency of the equipment is improved. And high practicability and economic benefits are achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of automatic feeding, and particularly relates to an automatic rubber strip feeding system and a control method thereof. Background Art

[0002] In various processing and manufacturing fields, the feeding system is usually arranged before subsequent processing procedures, and its stability and continuity directly affect production efficiency. Once there is a shortage or insufficient feeding, it will cause the subsequent procedures to be interrupted, seriously affecting the overall production efficiency. To solve this problem, the existing feeding systems usually adopt a two-station design, that is, two stations are set up for alternate feeding.

[0003] For rubber strip materials, the general treatment method in the prior art is: when the material in one of the stations is exhausted, the equipment needs to be shut down, and the operator needs to manually switch to the other station and manually bond the tail of the exhausted station to the head of the new station before production can resume. For example, when the material in the right station is exhausted, the equipment is shut down, and the operator needs to manually switch to the left station and bond the tail of the right station to the head of the left station, and then resume production while replacing a new material roll for the right station. Similarly, when the material in the left station is exhausted, the equipment is shut down again, and the operator needs to manually switch to the right station and bond the tail of the left station to the head of the right station.

[0004] This manual switching and bonding operation not only increases the labor intensity of the operator but also causes the equipment to stop frequently, seriously affecting the coherence and efficiency of production. In addition, the accuracy and speed of manual operation are limited, which may lead to material waste or insecure connection, further affecting product quality.

[0005] It can be seen that the existing feeding systems have problems such as low station switching efficiency and inability to produce continuously. Summary of the Invention

[0006] The technical problem to be solved by the present invention is that the existing feeding system has problems such as low station switching efficiency and inability to produce continuously.

[0007] To solve the above technical problems, the technical solution adopted by the present invention is to provide an automatic rubber strip feeding system, including:

[0008] Two stations, each of the stations is respectively provided with a material roll rotatably, and a detection member for detecting whether the material roll is exhausted is arranged on one side of each station, and a first suction member and a pressing member are arranged on the output side of the material roll; and,

[0009] A mobile joint device, which is slidably arranged between the two stations, and the mobile joint device is provided with a cutting member and a second suction member;

[0010] Among them, during normal feeding, the material is output from the material roll, passes through the cutting member, the first adsorbing member, the pressing member, the second adsorbing member, and reaches the belt drum to realize feeding; when the detecting member detects that the material roll at one of the stations is exhausted, the pressing member acts to press the material, the cutting member cuts off the tail of the material, the tail of the material is adsorbed by the second adsorbing member, the moving joint device drives the tail of the material to move to another station, the head of the material at the other station is adsorbed by the first adsorbing member, and the pressing member acts to stick the head and the tail of the material, realizing the feeding switch from one station to another station.

[0011] In another preferred embodiment, the detecting member includes:

[0012] The material roll exhaustion detecting member includes a bracket and a color sensor provided on the bracket, and the length direction of the bracket is consistent with the axial direction of the material roll; and,

[0013] The tail of the material detecting member is arranged on the output side of the material roll to detect the passing of the tail of the material.

[0014] In another preferred embodiment, a first clamping member is provided on the output side of the material roll, and the first clamping member is arranged upstream of the cutting member. The moving joint device is provided with a second clamping member, and the second clamping member is arranged downstream of the second adsorbing member. Before the cutting member cuts off the material, the first clamping member and the second clamping member act to clamp the material.

[0015] Further, in the above embodiment, the first clamping member includes:

[0016] The pressure receiving plate is fixedly arranged above the station;

[0017] The extrusion plate is provided with a guiding portion at one end facing the material roll and two width limiting portions at one end facing the cutting member; and,

[0018] The extrusion cylinder pushes the extrusion plate to tension the material and extrude it against the pressure receiving plate.

[0019] In another preferred embodiment, the cutting member includes:

[0020] The cutting cylinder is rotatably arranged on the moving joint device. The cutting cylinder is provided with a push rod, and a pin shaft is arranged at the end of the push rod. The axis of the pin shaft is perpendicular to the push rod; and,

[0021] The cutting knife has two rotation positions. A fixed shaft is arranged outside the second adsorbing member. The two rotation positions are respectively arranged on the fixed shaft and the pin shaft. When the push rod is pushed out, the cutting knife rotates with the fixed shaft as the rotation center, and the push rod drives the cutting knife to rotate through the pin shaft to realize cutting.

[0022] In another preferred embodiment, the pressing member includes:

[0023] A pressing head, and the first adsorbing member is disposed on the pressing head; and,

[0024] A pressing cylinder that pushes the pressing head to make the tail and the head of the material adhere.

[0025] In another preferred embodiment, the first adsorbing member is provided with a first working surface, the second adsorbing member is provided with a second working surface, both the first working surface and the second working surface are provided with air holes, a groove is provided on the outside of the first working surface, and a protrusion is provided on the outside of the second working surface, and the shape of the groove fits the shape of the protrusion.

[0026] In another preferred embodiment, a slide rail is provided above the two stations, the movable joint device is provided with a driving part and a connecting plate, both the cutting member and the second adsorbing member are disposed on the connecting plate, and when the driving part operates, the connecting plate reciprocates along the slide rail.

[0027] Further, in the above embodiment, limiting blocks and safety proximity switches are provided on both sides of the slide rail.

[0028] The present invention also provides a control method for an automatic rubber strip feeding system, including the following steps:

[0029] Obtain the material data collected by the detection members of the two stations, and judge whether the material data reaches the threshold of exhaustion;

[0030] According to the fact that the material data reaches the threshold of exhaustion, control the cutting member at this station to cut the material to form a tail, and then the second adsorbing member adsorbs the tail, and then the second adsorbing member slides to another station along with the movable joint device;

[0031] Obtain the position information of the movable joint device, and judge whether the movable joint device moves to a predetermined position;

[0032] Obtain whether the vacuum degree of the first adsorbing member at another station reaches the material suction threshold;

[0033] According to the fact that the movable joint device moves in place as collected and the vacuum degree of the first adsorbing member at another station reaches the material suction threshold, control the pressing member to operate to adhere the head and the tail of the material.

[0034] As can be seen from the above technical solutions, the advantages and positive effects of the tape automatic feeding system of the present application are as follows: Compared with the prior art, in the present invention, the usage of materials is monitored in real time by the detection components at the workstations. When it is detected that the material roll is used up, the system automatically starts the switching process. Specifically, the tail of the material is accurately cut by the first adsorbing component at the workstation and the cutting component of the moving joint device; through the first adsorbing component at the workstation and the second adsorbing component of the moving joint device, and in cooperation with the sliding of the moving joint device between the two workstations, the tail of the used-up material is quickly moved to another workstation and efficiently adhered to the head of the new material. This process is fast and accurate in operation, realizing seamless rotation and continuous feeding between the two workstations. The operator can replace the material roll of another workstation in advance while the current workstation is in normal production, ensuring sufficient preparation of materials. This design completely solves the problem of downtime caused by replacing the material roll, ensures the continuous production of the equipment, significantly improves the production efficiency of the equipment, and at the same time reduces the frequency of manual intervention and labor intensity, having high practicality and economic benefits. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] The drawings herein are incorporated into the specification and form a part of the specification, showing embodiments consistent with the present invention and used together with the specification to explain the principles of the present invention.

[0036] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, for those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0037] Figure 1 Is the front view of the present invention;

[0038] Figure 2 Is the left oblique view of the present invention;

[0039] Figure 3 Is the right oblique view of the present invention;

[0040] Figure 4 Is Figure 2 The partial enlarged view of A in

[0041] Figure 5 Is Figure 2 The partial enlarged view of B in

[0042] Figure 6 Is the structural schematic diagram of the pressing component of the present invention;

[0043] Figure 7 Is Figure 3 The partial enlarged view of C in

[0044] Figure 8Rear view of the present invention.

[0045] Note: The correspondence between the components and the reference numerals in the figure is as follows:

[0046] Station 10, material coil 11, detection part 12, material exhaustion detection part 121, bracket 1211, color sensor 1212, material tail detection part 122, first clamping part 13, pressure receiving plate 131, extrusion plate 132, guiding part 1321, width limiting part 1322, extrusion cylinder 133, first adsorbing part 14, air hole 1401, first working surface 141, protruding part 142, pressing part 15, pressing head 151, pressing cylinder 152, magnetic powder brake 16, moving joint device 20, driving part 201, connecting plate 202, cutting part 21, cutting cylinder 211, pushing rod 2111, pin shaft 2112, spherical plain bearing 2113, cutting knife 212, fixed shaft 213, second adsorbing part 22, second working surface 221, groove 222, second clamping part 23, slide rail 30, limiting block 31, safety proximity switch 32, uncoiling motor 40, storage material cylinder 50. Detailed implementation manners

[0047] To make the objectives, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Apparently, the described embodiments are some but not all of the embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present application without creative efforts shall fall within the scope of protection of the present application. The rubber strip automatic feeding system and control method provided by the present invention can realize automatic station switching and automatic bonding of the material head and the material tail, significantly improve the production efficiency, reduce the equipment downtime, reduce the labor intensity of the operator, ensure the firm connection of the materials, and improve the product quality. The present invention will be described in detail below with reference to the accompanying drawings of the specification and the specific implementation manners.

[0048] In order to overcome the problems of low station switching efficiency and inability to produce continuously in the prior art feeding system, refer to Figure 1 and Figure 2 , the present invention provides a rubber strip automatic feeding system, including two stations 10 and a moving joint device 20. The station 10 is used for placing and replacing the material coil 11, and the moving joint device 20 is used for moving the material tail of the exhausted material to another station 10 and sticking it to the material head of the material at another station 10. By optimizing the layout of the station 10 and the design of the moving joint device 20, rapid switching is achieved to ensure continuous feeding.

[0049] Each station 10 is respectively provided with a material roll 11 rotatably. On one side of each station 10, there is a detection member 12 for detecting whether the material roll 11 is used up. On the output side of the material roll 11, there are a first adsorbing member 14 and a pressing member 15. A rotating shaft can be arranged on the station 10, and the material roll 11 is wound layer by layer on the shaft. During production, as the material roll 11 rotates and outputs, it gradually becomes thinner. In order to ensure the stable output of the material roll 11, the mutual sliding between the material roll 11 and the shaft should be minimized. Specifically, the shaft can be set as an air shaft, which expands after being inflated and is fixed to the material roll 11. When the material roll 11 needs to be removed, the air shaft retracts after being deflated, and the material roll 11 can be easily removed.

[0050] The movable joint device 20 is slidably arranged between two stations 10. The movable joint device 20 is provided with a cutting member 21 and a second adsorbing member 22. The cutting member 21 is used to cut off the material tail, and the second adsorbing member 22 is used to adsorb and move the material tail to another station 10.

[0051] During normal feeding, the material is output from the material roll 11, passes through the first adsorbing member 14, the cutting member 21, the pressing member 15, the second adsorbing member 22, and reaches the belt drum to achieve feeding. Specifically, multiple rollers can be used to guide and tension the material. When the detection member 12 detects that the material roll 11 of one of the stations 10 is used up, the pressing member 15 acts to press the material, the cutting member 21 cuts off the material tail, the material tail is adsorbed by the second adsorbing member 22, the movable joint device 20 drives the material tail to move to another station 10, the material head of the other station 10 is adsorbed by the first adsorbing member 14, and the pressing member 15 acts to bond the material head and the material tail, realizing the feeding switch from one station 10 to another station 10.

[0052] The present invention monitors the material usage in real time through the detection component 12 on the working station 10. When it is detected that the material roll 11 is exhausted, the system automatically starts the switching process. Specifically, the pressing component 15 on the working station 10 and the cutting component 21 of the movable joint device 20 are used to accurately cut off the tail of the material; through the first adsorbing component 14 on the working station 10 and the second adsorbing component 22 of the movable joint device 20, and in cooperation with the sliding of the movable joint device 20 between the two working stations 10, the tail of the exhausted material is quickly moved to another working station 10 and efficiently adhered to the head of the new material. This process is fast and accurate, achieving seamless rotation and continuous material supply between the two working stations 10. The operator can replace the material roll 11 of another working station 10 in advance while the current working station 10 is in normal production, ensuring sufficient stock preparation. Therefore, the present invention adopts a dual-working-station 10 design, where one working station 10 is used for normal production and the other working station 10 is used for stock preparation. When the material of one working station 10 is exhausted, the system automatically switches to the other working station 10 and resumes normal production, realizing automatic material supply without stopping the machine. This design completely solves the problem of downtime caused by replacing the material roll 11, ensures the continuous production of the equipment, significantly improves the production efficiency of the equipment, and at the same time reduces the frequency and labor intensity of manual intervention, having high practicability and economic benefits.

[0053] It should be noted that the conveyed material in this application can be a rubber strip or other elastic materials that can be pressed and adhered, and the shape is not limited to sheet materials or strip materials. According to the characteristics, width, and thickness of the material, the models of each component in this application can be adjusted adaptively to complete the processing and conveying of similar materials.

[0054] Specifically, the first adsorbing component 14 and the second adsorbing component 22 can adopt vacuum adsorbers. The first adsorbing component 14, the cutting component 21, and the second adsorbing component 22 do not work during normal material supply and only act in sequence when the material is exhausted. To ensure smooth material supply, the output ends of the materials of the two working stations 10 can share a pay-off motor 40. The speed of the pay-off motor 40 is adjustable. During normal material supply, the speed of the pay-off motor 40 is relatively high. When it is necessary to switch the material supply between the two working stations 10, the speed of the pay-off motor 40 decreases, facilitating the cutting, adsorption, and adhesion of the material. The flexible adjustment of the speed of the pay-off motor 40 ensures a smooth transition of the material during the switching process.

[0055] Refer to Figure 2, in another preferred embodiment, the detection member 12 includes a roll - exhaustion detection member 121 and a tail - end detection member 122. The roll - exhaustion detection member 121 includes a bracket 1211 and a color sensor 1212 disposed on the bracket 1211. The length direction of the bracket 1211 is consistent with the axial direction of the roll 11. The tail - end detection member 122 is disposed on the output side of the roll 11 to detect the passing of the tail - end. When the roll 11 is about to be exhausted, its diameter will become smaller, and its color will change from the color of the material (black) to the color of the roll cylinder. By using the color sensor 1212 facing the roll to detect the color change, the color change represents that the roll 11 is about to be exhausted. At this time, the conveying speed of the material can be reduced to prepare for the cutting of the tail - end of the next material. When the tail - end of the roll 11 passes through the tail - end detection member 122, it means that the material has detached from the roll 11 and the roll 11 is about to be exhausted. At this time, the switching process is started. Specifically, the tail - end detection member 122 can adopt a grating - type fiber optic sensor. The detection of whether the roll 11 is exhausted and the detachment of the tail - end from the roll 11 makes the detection accuracy higher and makes it more convenient for other components to prepare for the switching station 10. The high sensitivity of the grating - type fiber optic sensor ensures the accuracy of the tail - end detection and avoids misjudgment.

[0056] Refer to Figure 1 and Figure 8 , a magnetic powder brake 16 can be provided on the rotating shaft of the roll 11 to provide damping for the rotation of the roll 11, prevent the roll 11 from idling, and solve the problems of uneven rotation speed of the roll 11 and unstable conveying rate of the material caused by inertia. The output torque of the magnetic powder brake 16 gradually decreases as the diameter of the roll 11 becomes smaller. In addition, in order to maintain the rotational stability of the roll 11, an ultrasonic distance sensor can be provided to detect its diameter change. The ultrasonic distance sensor is used to monitor the diameter of the roll 11 in real - time and dynamically adjust the damping of the magnetic powder brake 16 to ensure the stable rotation speed of the roll 11, avoid the speed fluctuation caused by the diameter reduction, and further improve the stability of the material transmission.

[0057] Continue to refer to Figure 1 and Figure 2 , in another preferred embodiment, a first clamping member 13 is provided on the output side of the roll 11, and the first clamping member 13 is disposed upstream of the cutting member 21. The moving joint device 20 is provided with a second clamping member 23, and the second clamping member 23 is disposed downstream of the second adsorbing member 22. Before the cutting member 21 cuts the material, the first clamping member 13 and the second clamping member 23 act to clamp the material. When cutting the material, in order to prevent the material from moving and causing uneven cut edges, it is necessary to clamp the material before performing the cutting action. At the same time, considering that the cut tail - end is adsorbed by the second adsorbing member 22 and the head of the new material on the standby station 10 is adsorbed by the first adsorbing member 14 on the moving joint device 20, the tensioning range must cover the cutting position and the adsorption position. The coordinated action of the first clamping member 13 and the second clamping member 23 ensures the stability of the material during cutting and adsorption.

[0058] Refer to Figure 4 , further, in the above embodiment, the first clamping member 13 includes a pressure receiving plate 131, an extrusion plate 132, and an extrusion cylinder 133. The pressure receiving plate 131 is fixedly arranged above the working station 10. One end of the extrusion plate 132 facing the material roll 11 is provided with a guiding portion 1321, and one end facing the cutting member 21 is provided with two width limiting portions 1322. The extrusion cylinder 133 pushes the extrusion plate 132 to tension the material and press it against the pressure receiving plate 131. In addition to extruding and tensioning the material, the purpose of the extrusion plate 132 is also to guide the transmission of the material. The guiding portion 1321 is in the same direction as the direction of material introduction, and the material is output between the two width limiting portions 1322 at the other end, so that the material remains strip-shaped and within the range of movement of the cutting member 21. In order to adapt to the extrusion plate 132, the pressure receiving plate 131 also has a guiding portion 1321 and width limiting portions 1322. Specifically, the guiding portion 1321 of the pressure receiving plate 131 can be made to correspond to the width limiting portions 1322 of the extrusion plate 132, and the effects of guiding and width limiting can be achieved at both the input end and the output end of the material. By using the extrusion cylinder 133 to push the extrusion plate 132, the clamping force is more stable, and the pushing and pulling distance of the cylinder is relatively large. When the extrusion cylinder 133 is not activated, the extrusion plate 132 and the pressure receiving plate 131 do not affect the transmission of the material. The second clamping member 23 is arranged on the movable joint device 20, and its structure is similar to that of the first clamping member 13, and the guiding portion 1321 and the width limiting portions 1322 can be adjusted adaptively. The precise cooperation between the extrusion plate 132 and the pressure receiving plate 131 ensures that the material does not shift during transmission, improving the cutting accuracy. At the same time, the flexible control of the extrusion cylinder 133 enables seamless switching between clamping and releasing of the material, further optimizing the coherence and efficiency of the entire production process. The extrusion cylinder 133 can be fixed at a predetermined position above each working station 10 through a cylinder bracket bolt. In addition, other cylinders appearing in this application have different shapes and sizes according to their functions, and appropriate cylinder brackets can be selected as needed and installed at a predetermined position above the working station 10 to cooperate with the implementation of the actions of each process.

[0059] Refer to Figure 5, in another preferred embodiment, the cutting member 21 includes a cutting cylinder 211 and a cutting knife 212. The cutting cylinder 211 is rotatably arranged on the movable joint device 20. The cutting cylinder 211 is provided with a push rod 2111. The push rod 2111 is provided with a pin shaft 2112, and the axis of the pin shaft 2112 is perpendicular to the push rod 2111. The cutting knife 212 has two rotation positions. A fixed shaft 213 is arranged outside the second suction member 22. The two rotation positions are respectively arranged on the fixed shaft 213 and the pin shaft 2112. When the push rod 2111 is pushed out, the cutting knife 212 rotates around the fixed shaft 213 as the rotation center. The push rod 2111 drives the cutting knife 212 to rotate through the pin shaft 2112, thereby realizing cutting. In practical applications, the cutting angle range of the cutting knife 212 is between 60° and 75°. Specifically, the end of the push rod 2111 is connected to the pin shaft 2112 through a spherical plain bearing 2113. The upper end of the spherical plain bearing 2113 allows the end of the push rod 2111 to have a slight rotation. The lower end of the spherical plain bearing 2113 is rotatably arranged on the pin shaft 2112. When the cutting cylinder 211 extends the push rod 2111, it rotates itself at the same time, and the line of force of the cutting cylinder 211 also changes with its own rotation. The spherical plain bearing 2113 can fine-tune the push rod 2111 to ensure that the push rod 2111 always remains in a straight line with the spherical plain bearing 2113 during the pushing process, maintaining the force stability between the push rod 2111 and the pin shaft 2112, and making the rotation and cutting actions of the cutting knife 212 smooth. This embodiment focuses on the rotational setting of the cutting knife 212. The cutting knife 212 realizes the cutting action through rotation. When not cutting, it is also necessary to maintain the position stability of the cutting knife 212. Therefore, two rotation positions are arranged on the cutting knife 212. One rotation position is arranged on the fixed shaft 213 outside the second suction member 22 as the rotation center of the cutting knife 212, and the other rotation is arranged on the pin shaft 2112 at the end of the push rod 2111 and moves with the pushing out of the push rod 2111, so that the cutting knife 212 rotates around the fixed shaft 213 under the action of the cutting cylinder 211 to complete the cutting action. The cutting knife 212 rotates flexibly to ensure accurate cutting. The cooperation between the fixed shaft 213 and the pin shaft 2112 improves the stability of the cutting knife 212 and avoids shaking during the cutting process. The precise control of the cutting cylinder 211 enables the cutting knife 212 to quickly reach the position when needed, significantly improving the cutting efficiency. Since the next action after cutting is adsorption, the second suction member 22 is very close to the cutting cylinder 211. At this time, directly setting the fixed shaft 213, that is, the rotation center of the cutting knife 212, on the second suction member 22 is also more in line with the program design in terms of structure.

[0060] Through this design, the cutting knife 212 remains stationary in the non-working state, reducing wear and extending its service life. The pushing and pulling action of the cutting cylinder 211 cooperates with the pressing cylinder 133 to achieve seamless connection between material clamping and cutting, further improving the overall coordination and automation level of the production line.

[0061] Referring to Figure 6 , in another preferred embodiment, the pressing member 15 includes a pressing head 151 and a pressing cylinder 152. The first adsorbing member 14 is disposed on the pressing head 151. The pressing cylinder 152 pushes the pressing head 151 to bond the tail and the head of the material. By directly setting the first adsorbing member 14 on the pressing member 15, the pressing member 15 drives the first adsorbing member 14 to move as a whole, realizing the bonding of the head and the tail of the material. The tail of the material is adsorbed by the second adsorbing member 22, and the head of the new material roll 11 is adsorbed by the first adsorbing member 14. Only the head of the material needs to move, that is, only the first adsorbing member 14 needs to move upward for pressing. Only one side of the head of the material needs to move, and the tail of the material no longer moves for pressing, thereby realizing the adhesion of the head and the tail of the material. The precise control of the pressing cylinder 152 ensures firm adhesion. The overall design is compact, the operation is simple, the material replacement time is effectively shortened, and the production efficiency is improved. The thrust of the pressing cylinder 152 can be adjusted according to the material characteristics to ensure that the adhesion force is moderate and avoid excessive flattening.

[0062] Referring to Figure 7 , in a preferred embodiment, the first adsorbing member 14 is provided with a first working surface 141, the second adsorbing member 22 is provided with a second working surface 221, air holes 1401 are provided on both the first working surface 141 and the second working surface 221, a protrusion 142 is provided on the outside of the first working surface 141, and a groove 222 is provided on the outside of the second working surface 221. The shape of the protrusion 142 fits the shape of the groove 222. Both the first adsorbing member 14 and the second adsorbing member 22 are provided with air holes 1401 to adsorb the material by vacuum pumping. When the first working surface 141 and the second working surface 221 are pressed, the protrusion 142 and the groove 222 on the outside fit in shape, ensuring that the pressing is in place and there is no deviation. The precise cooperation between the protrusion 142 and the groove 222 further enhances the stability of the material adsorption, ensuring that there is no sliding phenomenon during the adhesion process. The air holes 1401 are evenly distributed, the vacuum pumping effect is better, the adsorption force is improved, and the head and the tail of the material are tightly combined and seamlessly butted.

[0063] Referring to Figure 1 and Figure 2 , in a preferred embodiment, a slide rail 30 is provided above the two stations 10. The moving joint device 20 is provided with a driving part 201 and a connecting plate 202. Both the cutting member 21 and the second adsorbing member 22 are disposed on the connecting plate 202. When the driving part 201 operates, the connecting plate 202 reciprocates along the slide rail 30. In order to realize the adhesion and sliding of the head and the tail of the material between the two stations 10, a slide rail 30 is provided in this embodiment to ensure the smooth movement of the moving joint device 20. Specifically, the driving part 201 on the moving joint device 20 can adopt a rodless cylinder, and the driving part 201 and the connecting plate 202 can be fixed through a connecting arm. Specifically, each of the two stations 10 is provided with a mounting bracket, the two mounting brackets are arranged side by side, and the slide rail 30 is disposed on the top of the mounting brackets.

[0064] Further, in the above embodiments, limiting blocks 31 and safety proximity switches 32 are provided on both sides of the slide rail 30. The driving part 201 of the movable connector 20 drives the connecting plate 202 to slide. In order to align the second adsorbent 22 with the first adsorbent 14 to ensure the joint accuracy of the material head and the material tail, it is necessary to accurately move the position of the movable connector 20. Therefore, limiting blocks 31 and safety proximity switches 32 are provided on both sides of the slide rail 30. The limiting blocks 31 can specifically adopt stop blocks to achieve physical limiting, and the safety proximity switches 32 can send in-place signals to the feeding system. The double guarantee of the limiting blocks 31 and the safety proximity switches 32 ensures the precise positioning of the movable connector 20 on the slide rail 30, preventing over-positioning or under-positioning phenomena. By precisely controlling the moving distance, the accuracy and stability of the docking of the material head and the material tail are effectively improved, and the efficiency and safety of the entire gluing and cutting process are further optimized.

[0065] The present invention also provides a control method for an automatic rubber strip feeding system, including the following steps:

[0066] Obtain the material data collected by the detection parts 12 at two stations 10, and judge whether the material data reaches the threshold of exhaustion;

[0067] According to the material data reaching the threshold of exhaustion, control the cutting part 21 at this station 10 to cut the material to form a material tail

[0068] Then, the second adsorbent 22 adsorbs the material tail, and then the second adsorbent slides to another station 10 along with the movable connector 20; obtain the position information of the movable connector 20, and judge whether the movable connector 20 moves to a predetermined position; obtain whether the vacuum degree of the first adsorbent 14 at another station 10 reaches the material suction threshold;

[0069] According to the collected information that the movable connector 20 moves in place and the vacuum degree of the first adsorbent 14 at another station 10 reaches the material suction threshold, control the pressing part 15 to act to bond the material head and the material tail. Specifically, after the station is switched, the system can emit a prompt sound or prompt light for replacing the material roll 11. Manually roll a new material to the empty station 10, and place the material head on the first adsorbent 14. The first adsorbent 14 acts to adsorb the material head to prepare for the next material bonding.

[0070] The following will introduce the specific steps of automatic feeding in detail with reference to the drawings:

[0071] 1. Normal feeding at the right station 10: The operator places a coil 11 at each of the two stations 10. The moving connector 20 is above the right station 10 at this time. The material passes through the tail detector 122, the first clamping member 13, the cutting member 21, the first adsorbing member 14 and the second adsorbing member 22, the second clamping member 23, and the pay-off motor 40 in sequence to the belt drum to achieve feeding.

[0072] 2. Preparation of materials at the left station 10: At the left station 10, the material passes through the tail detector 122 and the first clamping member 13 of the left station 10, passes through the cutting member 21, places the head of the material on the first adsorbing member 14, and the first adsorbing member 14 adsorbs the head of the material by vacuum pumping.

[0073] 3. The material at the right station 10 is exhausted, the material is cut, and the tail is sent to the left station 10: During the normal production process at the right station 10, it is known that the starting winding position of the material on the coil 11 randomly appears at both ends of the coil 11. The color sensor 1212 is aligned with the middle of the coil 11. When the material is used up to the last layer and the color changes from black to the color of the coil barrel, the color sensor 1212 detects the black material. The feeding system receives the signal from the color sensor 1212 and controls the pay-off speed of the pay-off motor 40 to decrease from 6000 mm / s to 900 mm / s. When the tail of the material passes through the tail detector 122, the pressing cylinder 133 of the first clamping member 13 extends to clamp the material, and the pay-off motor 40 stops working. In order to ensure sufficient tension during material cutting, after 0.5 seconds, the second clamping member 23 acts to clamp the material, the pressing cylinder 152 extends, so that the material is tensioned between the first clamping member 13 and the second clamping member 23, the tension increases, and the pressing cylinder 152 extends, so that the material is closer to the cutting knife 212. The cutting cylinder 211 extends, the cutting knife 212 cuts the material, the cutting cylinder 211 retracts, the second adsorbing member 22 pumps vacuum to adsorb the cut tail of the material, and the pressing cylinder 152 retracts. The driving part 201 drives the moving connector 20 to move from the right station 10 to the left station 10.

[0074] 4. Adhere the tail of the material at the right station 10 to the head of the material at the left station 10: The moving connector 20 relies on the buffer and the limit block 31 to move into place. When the safety proximity switch 32 at the left station 10 receives the signal, the moving connector 20 moves into place. The pressing cylinder 152 at the left station 10 extends, and under the pressing action, the head and the tail of the material are adhered together. The second clamping member 23 retracts, and the second adsorbing member 22 and the first adsorbing member 14 are simultaneously switched from vacuum pumping to blowing state. The material detaches from the first adsorbing member 14 and the second adsorbing member 22. The pressing cylinder 152 retracts, and the maximum pay-off speed of the pay-off motor 40 is increased to 6000 mm / s to continue pay-off, and the equipment realizes non-stop automatic feeding.

[0075] 5. Re-stocking at the right station 10: When the left station 10 is supplying materials normally, the operator can replace the material roll 11 at the right station 10, as long as it is replaced at any time before the materials at the left station 10 are exhausted. The operator removes the empty material reel at the right station 10 and replaces it with a new material roll 11 at the right station 10. The materials pass through the tail detection part 122 and the first clamping part 13 of the right station 10 in sequence. The material head is placed on the first adsorbing part 14, and the first adsorbing part 14 evacuates to adsorb the material head.

[0076] 6. Exhaustion of materials at the left station 10: When the materials at the left station 10 are used up to the middle position of the last layer, the working processes of the components at the left station 10 are the same as those of the right station 10 when the materials are exhausted as described above, and the feeding is switched to the right station 10, which will not be elaborated here. Thus, the system completes the complete process of switching between the left and right stations.

[0077] In another preferred embodiment, before the cutting part 21 is actuated, it is judged whether the belt drum has entered the material laminating program; if the belt drum has not entered the material laminating program, the above steps are continued; if the belt drum is laminating materials, wait until the belt drum has completed lamination and then continue the above steps. Specifically, during the operation of the whole machine, when the tail detection part 122 at the right station 10 detects that the materials have been exhausted, the working processes of the components for automatic feeding and material changing will vary according to the working state of the belt drum chassis: In the first case, the belt drum has not entered the material laminating program, and the equipment automatically switches to the left station 10 according to the process described above and then laminates the materials. At this time, the lamination program will be paused, and the lamination operation will continue after the materials at the left station 10 are ready, ensuring the continuity of production. The operator needs to closely monitor the equipment status and adjust the parameters in a timely manner to ensure the stable quality of the products. In the second case, the belt drum is laminating materials. Different from the conventional steps: after the first clamping part 13 and the second clamping part 23 clamp the materials, the pay-off motor 40 pauses, and the storage device, specifically the storage cylinder 50, automatically replenishes the materials to ensure sufficient materials during lamination. After lamination is completed, the materials are cut and adhered, and the materials are smoothly transitioned to avoid production interruption.

[0078] The first clamping part 13 at the right station 10 clamps the material tail. After 0.5 seconds, the second clamping part 23 clamps the materials, and the pay-off motor 40 stops working. Figure 8, the storage length of the storage cylinder 50 is 33 meters, and the length of a tire bonded material is 22.5 meters. As production progresses, the proportional valve controls the storage cylinder 50 to gradually retract, and the stored material is used to complete the bonding. After the material bonding is completed, the pressing cylinder 152 at the right station 10 extends, the cutting cylinder 211 extends the cutting knife 212 to cut the material, then the cutting cylinder 211 retracts, the pressing cylinder 152 retracts, the second adsorbing member 22 evacuates to adsorb the material tail, the pressing cylinder 152 retracts, and the moving connector 20 moves from the right station 10 to the left station 10 to the left. After the moving connector 20 is in place, the pressing cylinder 152 at the left station extends, the material head and the material tail are bonded, the adsorbing member switches to blowing air, and the material is separated. The pay-off motor 40 accelerates to 6000 mm / s to ensure continuous feeding. The operator monitors the equipment and adjusts the parameters to ensure stable and efficient production.

[0079] It should be noted that in this text, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising a..." does not exclude the presence of additional identical elements in the process, method, article or device comprising the element.

[0080] The above are only specific embodiments of the present invention, enabling those skilled in the art to understand or implement the present invention. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to these embodiments shown herein, but rather to the widest scope consistent with the principles and novel features claimed herein.

Claims

1. An automatic rubber strip feeding system, characterized in that: include: Two workstations, each of which is rotatably provided with a material roll, a detection member for detecting whether the material roll is exhausted is provided on one side of each workstation, and a first adsorption member and a pressing member are provided on the output side of the material roll; and, A movable jointer is slidably arranged between the two workstations, and the movable jointer is provided with a cutting part and a second adsorption part; Among them, during normal feeding, the material is output from the material roll through the cutting part, the first adsorption part, the pressing part, the second adsorption part to the belt drum to realize feeding; when the detection part detects that the material roll of one of the workstations is exhausted, the pressing part will press the material, the cutting part will cut off the tail of the material, and the tail of the material will be adsorbed by the second adsorption part, and the movable connector will drive the tail of the material to move to another workstation, and the material head of the other workstation will be adsorbed by the first adsorption part, and the pressing part will stick the material head and the material tail to realize the feeding switch from one workstation to another.

2. The automatic rubber strip feeding system according to claim 1, characterized in that: The detection member comprises: A material roll exhaustion detection member comprises a bracket and a color sensor arranged on the bracket, wherein the length direction of the bracket is consistent with the axial direction of the material roll; and The material tail detection part is arranged on the output side of the material roll to detect the passage of the material tail.

3. The automatic rubber strip feeding system according to claim 1, characterized in that: A first clamping member is provided on the output side of the material roll, and the first clamping member is arranged upstream of the cutting member. The movable connector is provided with a second clamping member, and the second clamping member is arranged downstream of the second adsorption member. Before the cutting member cuts the material, the first clamping member and the second clamping member act to clamp the material.

4. The automatic rubber strip feeding system according to claim 3, characterized in that: The first clamping member comprises: A pressure plate, fixedly arranged above the workstation; An extrusion plate, having a guide portion at one end facing the material roll and two width limiting portions at one end facing the cutting piece; and The extrusion cylinder pushes the extrusion plate to tension and squeeze the material onto the pressure plate.

5. The automatic rubber strip feeding system according to claim 1, characterized in that: The cutting piece comprises: A cutting cylinder, the cutting cylinder is rotatably mounted on the movable joint, the cutting cylinder is provided with a push rod, and a pin is provided at the end of the push rod, and the axis of the pin is perpendicular to the push rod; and The cutting knife is provided with two rotating positions, a fixed shaft is provided on the outer side of the second adsorption member, the two rotating positions are respectively arranged on the fixed shaft and the pin shaft, the ejection rod is pushed out, the cutting knife takes the fixed shaft as the rotation center, and the ejection rod drives the cutting knife to rotate through the pin shaft to achieve cutting.

6. The automatic rubber strip feeding system according to claim 1, characterized in that: The pressing piece comprises: A pressing head, wherein the first adsorption member is arranged on the pressing head; and The pressing cylinder pushes the pressing head to make the tail and the head of the material stick together.

7. The automatic rubber strip feeding system according to claim 1, characterized in that: The first adsorption member is provided with a first working surface, the second adsorption member is provided with a second working surface, the first working surface and the second working surface are both provided with air holes, the outer side of the first working surface is provided with a groove, the outer side of the second working surface is provided with a protrusion, and the shape of the groove matches the shape of the protrusion.

8. The automatic rubber strip feeding system according to claim 1, characterized in that: A slide rail is arranged above the two workstations, the movable joint device is provided with a driving part and a connecting plate, the cutting piece and the second adsorption piece are both arranged on the connecting plate, and when the driving part is actuated, the connecting plate reciprocates along the slide rail.

9. The automatic rubber strip feeding system according to claim 8, characterized in that: Limit blocks and safety proximity switches are provided on both sides of the slide rail.

10. A control method for an automatic rubber strip feeding system, characterized in that: The following steps are involved: Obtain the material data collected by the two workstation inspection parts to determine whether the material data has reached the exhaustion threshold; According to the material data reaching the exhaustion threshold, the cutting piece of the station is controlled to cut the material to form a tail, and then the second adsorbing piece adsorbs the tail, and then the second adsorbing piece slides to another station with the mobile connector; Obtaining the position information of the mobile connector and determining whether the mobile connector has moved to a predetermined position; Obtaining whether the vacuum degree of the first adsorption part of another station reaches the material absorption threshold; According to the collected data, the mobile connector moves into place and the vacuum degree of the first adsorption part of another station reaches the material suction threshold, and the pressing part is controlled to stick the material head and the material tail.

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