A PET sheet forming and processing equipment

Abstract

The invention relates to the technical field of PET sheet processing, and in particular to a PET sheet forming and processing device, comprising a base plate, wherein upright plates are symmetrically fixedly connected to the left and right sides of the rear end of the base plate, and support plates are fixedly connected to the front sides of the left and right upright plates and the left and right sides of the front end of the base plate, and a roll changing mechanism for changing rolls and winding the PET sheet is provided between the left and right upright plates, and a roll sticking mechanism for sticking the end of the cut PET sheet on a new roll is provided between four groups of support plates. The roll changing mechanism and the roll sticking mechanism adopted in the invention are used in combination, and can automatically and integrally complete the cutting, roll changing, unwinding and connection of the roll to the new roll of the PET sheet, and the overall automation degree is high and the overall structure is simple, which can not only ensure the production quality of the whole roll of the PET sheet, but also control the production progress of the whole roll of the PET sheet, and can control the roll out of the PET sheet with both quality and quantity.

Description

Technical Field

[0001] The invention relates to the technical field of PET sheet processing, in particular to a PET sheet forming and processing device. Background Art

[0002] PET sheet is a high-performance thermoplastic plastic sheet with good transparency, barrier properties, impact resistance, heat resistance, chemical stability and environmental protection. It is widely used in packaging materials, industrial applications, automotive accessories and building materials.

[0003] After forming, PET sheets need to be rolled up. Existing PET sheet rolling and processing equipment is mostly a relatively simple rolling device with only a winding function. After each roll of PET sheet is wound, multiple tasks need to be performed manually. For example, the replacement of the roll is mostly done manually, and the roll is generally fixed by bolts. Each replacement and the upper and lower rolls need to be disassembled and assembled multiple times, which will undoubtedly affect the winding efficiency of the PET sheet. In addition, in order to ensure timely replacement of the roll, the PET sheet production equipment needs to cooperate to slow down the production feeding speed, which will also affect the production efficiency of the PET sheet. At the same time, after each new roll is installed, the end of the PET sheet needs to be manually wound onto the new roll. Manual operation cannot ensure that the end of the PET sheet is in an even position, which will have an adverse effect on subsequent winding, and the production quality of the entire roll of PET sheet cannot be guaranteed. Summary of the invention

[0004] Technical problem to be solved: The present invention provides a PET sheet forming and processing equipment, which can solve the above-mentioned problems.

[0005] Technical solution: In order to achieve the above-mentioned purpose, the present invention adopts the following technical solution: a PET sheet forming and processing equipment, including a base plate, vertical plates are symmetrically fixedly connected to the left and right sides of the rear end of the base plate, and support plates are fixedly connected to the front sides of the left and right vertical plates and the left and right sides of the front end of the base plate, and a roll changing mechanism for changing rollers and winding the PET sheet is provided between the left and right vertical plates, and a roll sticking mechanism for attaching the end of the cut PET sheet to a new roll is provided between the four groups of support plates.

[0006] The roll changing mechanism includes a disc seat rotatably connected to the upper side of the vertical plate, and auxiliary support rollers and winding rollers are equidistant and staggered at 90° between the left and right disc seats. The auxiliary support roller is fixedly connected between the disc seats on both sides, and the winding roller is rotatably connected to the left disc seat. A roll outlet is opened at the position of the right disc seat corresponding to the winding roller, and a locking component for automatically locking the PET sheet roll is provided on the winding roller. An unwinding component for automatically pushing out the entire roll that has been wound up is provided between the positions of the rear ends of the left and right vertical plates corresponding to the central axis of the disc seat, and the left disc seat and the two sets of winding rollers are respectively provided with control components for controlling their rotational operation.

[0007] The roll-sticking mechanism includes a mounting U-frame movably arranged between four groups of support plates, the mounting U-frame is provided with a close-approaching assembly for controlling the forward and backward movement between the four groups of support plates to approach the roll, an upper abutment roller is fixedly connected to the upper end of the mounting U-frame, a lower abutment roller is movably arranged on the lower side of the mounting U-frame, both ends of the lower abutment roller are fixedly connected to a movable seat two, and the movable seats two on both sides are jointly provided with a lifting assembly for controlling the up and down movement of the movable seat in the mounting U-frame, an extension plate is fixedly connected to the rear end of the movable seat two, a turning-up roller is movably arranged between the extension plates, the turning-up roller is provided with a roll head turning-up assembly for controlling the movable seat to be close to the upper surface of the roll, and a cutting assembly for slitting PET sheets is also integrated on the roll head turning-up assembly.

[0008] Through the coordinated use of the roll changing mechanism and the roll sticking mechanism, the automatic roll changing and unwinding of the PET sheet can be stably achieved, as well as the automatic connection between the roll and the new drum.

[0009] As a preferred technical solution of the present invention, a dual-axis electric push rod is fixedly connected to the center of the disc seat on the right side, and support forks are fixedly connected to the two output ends of the dual-axis electric push rod corresponding to the positions of the roll outlet, and a bite is provided at the right end of the roll support roller corresponding to the position of the support fork, and the support fork and the bite rotate in coordination.

[0010] As a preferred technical solution of the present invention, the locking component includes a plurality of ejection outlets which are penetrated through the surface wall of the winding roller, the ejection outlets are linearly and equidistantly distributed, an ejection head is slidably embedded in the same ejection outlet at a position corresponding to the surface wall of the winding roller, a disc is fixedly connected to one end of the ejection head close to the inside of the winding roller, a spring 1 is provided between the disc and the inner wall of the winding roller, the spring is sleeved on the ejection head, a triangular block is fixedly connected to the side of the disc away from the ejection head, a trapezoidal block is provided between the two triangular blocks at the same ejection outlet position, the trapezoidal block and the inclined surfaces of the two triangular blocks are correspondingly distributed, each trapezoidal block is fixedly connected to a connecting rod, one end of the connecting rod is fixedly connected to the output end of an electric push rod 2, and the electric push rod 2 is fixedly connected to the inside of the winding roller.

[0011] As a preferred technical solution of the present invention, the unwinding assembly includes a screw rod rotatably connected to the rear end of the left and right side vertical plates corresponding to the central axis position of the disc seat, and a guide rod fixedly connected to the rear end of the left and right side vertical plates corresponding to the central axis position of the disc seat, a movable seat is slidably connected to the guide rod, and the movable seat is also threadedly connected to the screw rod, an electric push rod is fixedly connected to the upper side of the movable seat, the output end of the electric push rod faces the central axis of the disc seat and is fixedly connected to a shift fork, one end of the screw rod is extended and fixedly connected to the output end of the motor, and the motor is fixedly connected to the vertical plate.

[0012] As a preferred technical solution of the present invention, the control component includes a driving rod fixedly connected to the center of the left disc seat, the driving rod is rotatably connected to the double-wheel roller seat 2 on the periphery, the double-wheel roller seat 2 is rotatably connected to the double-wheel roller seat 1 on the periphery, and the upper left part of the base plate is fixedly connected to motor 2, motor 3 and motor 4 in sequence, the output end of motor 2, double-wheel roller seat 1 and one group of winding rollers are connected by two groups of synchronous belt structures, the output end of motor 3 and the driving rod are connected by a group of synchronous belt structures, and the output end of motor 4, double-wheel roller seat 2 and the remaining group of winding rollers are connected by two groups of synchronous belt structures.

[0013] As a preferred technical solution of the present invention, the lifting assembly includes a screw rod 2 rotatably connected to the right side of the mounting U frame, and a guide rod 2 fixedly connected to the left side of the mounting U frame, a right side moving seat 2 threadedly connected to the screw rod 2, a left side moving seat 2 slidingly connected to the guide rod 2, an upper end of the screw rod 2 extends to the outside of the mounting U frame and is fixedly connected to the output end of the motor 5, and the motor 5 is fixedly connected to the outside of the mounting U frame.

[0014] As a preferred technical solution of the present invention, the proximity component includes a mobile Z frame symmetrically fixedly connected to the left and right sides of the U frame, the right mobile Z frame is threadedly connected to the screw rod three, the left mobile Z frame is slidably connected to the guide rod three, the guide rod three is fixedly connected between the two support plates on the left, the screw rod three is rotatably connected between the two support plates on the right, the front end of the screw rod three extends to the outside of the front support plate and is fixedly connected to the output end of the motor six, and the motor six is ​​fixedly connected to the front support plate.

[0015] As a preferred technical solution of the present invention, the roll head flipping assembly includes an electric push rod three fixedly connected to the rear side of the extension plate, the output end of the electric push rod three faces upward, and a stop seat is fixedly connected between the output ends of the left and right electric push rods three, and a secondary telescopic rod is symmetrically fixedly connected to the front side of the stop seat. The two secondary telescopic rods are commonly fixedly connected to a bracket at one end away from the stop seat, and a flipping roller is fixedly connected inside the bracket. A spring two is provided between the bracket and the stop seat, and the spring two is sleeved on the outer periphery of the secondary telescopic rod.

[0016] As a preferred technical solution of the present invention, the cutting assembly includes a movable opening opened in the stopper, a sliding rod is fixedly connected in the movable opening, an electric slider is slidably connected on the sliding rod and in the movable opening, and a blade is fixedly connected to the upper side of the electric slider.

[0017] Beneficial effects: 1. The roll-changing mechanism adopted by the present invention adopts two groups of rolls to rotate and alternately connect the rolls, which can ensure the continuity of winding and improve the working efficiency of winding. The rolls can be automatically locked and pushed out through the cooperation of the unwinding component and the locking component. The degree of automation is high, which can effectively improve the loading and unloading efficiency of the rolls, shorten the assembly and disassembly cycle of the rolls, and further increase the production output of PET sheets. At the same time, the control component adopted can not only effectively transmit, but also conform to the actual operating environment.

[0018] 2. The roll-sticking mechanism adopted in the present invention can automatically support the cut end of the PET sheet to the surface of a new roll through the roll head turning-up component. The overall structure is simple and the use cost is low. Then, the upper resistance roller, the lower resistance roller and the turning-up roller form a three-point tensioning PET sheet, which can ensure the neatness of the PET sheet end on the roll surface and effectively ensure the quality of the winding and placement of the PET sheet end.

[0019] 3. The roll changing mechanism and roll sticking mechanism adopted in the present invention are used in combination, which can automatically and integratedly complete the cutting, roll changing, unwinding and connection of the PET sheet roll with the new drum. The overall automation degree is high and the overall structure is simple. It can not only ensure the production quality of the whole roll of PET sheet, but also control the production progress of the whole roll of PET sheet, and can control the rolling of PET sheet with quality and quantity. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0021] Figure 1 It is a schematic diagram of the three-dimensional structure from the first viewing angle of the present invention.

[0022] Figure 2 It is a schematic diagram of the three-dimensional structure of the roll-applying mechanism of the present invention from a first viewing angle.

[0023] Figure 3 It is a left-side sectional structural schematic diagram of the present invention.

[0024] Figure 4 It is a schematic diagram of the three-dimensional structure of the roll changing mechanism of the present invention from a first viewing angle.

[0025] Figure 5 It is a schematic diagram of the three-dimensional connection structure of the control component of the present invention.

[0026] Figure 6It is a schematic diagram of the cross-sectional structure of the connection of the driving rod, the double-wheel roller seat 1 and the double-wheel roller seat 2 of the present invention.

[0027] Figure 7 It is a schematic diagram of the internal cross-sectional structure of the winding roller of the present invention.

[0028] Figure 8 It is a schematic diagram of the distribution state of the upper abutting roller, the lower abutting roller, the turning roller and the winding support roller of the present invention when the roll is attached.

[0029] Fig. 9 It is a schematic diagram of the distribution state of the upper abutting roller, the lower abutting roller, the turning roller, the supporting roller and the blade during cutting of the present invention.

[0030] In the figure: 1. roll changing mechanism; 11. unwinding assembly; 111. shift fork; 112. electric push rod 1; 113. moving seat 1; 114. guide rod 1; 115. screw rod 1; 116. support fork; 117. double-axis electric push rod; 118. motor 1; 12. auxiliary support roller; 13. disc seat; 131. roll outlet; 14. support roll roller; 141. bite; 15. locking assembly; 151. connecting rod; 152. ejector outlet; 153. spring 1; 154. triangular block; 155. disc; 156. ejector head; 157. trapezoidal block; 158. electric push rod 2; 16. control assembly; 161. drive rod; 162. motor 2; 163. motor 3; 164. motor 4; 165. double Wheel roller seat one; 166, double wheel roller seat two; 2, rolling mechanism; 21, lifting assembly; 211, motor five; 212, screw rod two; 213, guide rod two; 214, moving seat two; 2141, extension plate; 22, approach assembly; 221, motor six; 222, moving Z frame; 223, guide rod three; 224, screw rod three; 23, cutting assembly; 231, blade; 232, electric slider; 233, slide bar; 24, upper resist roller; 25, lower resist roller; 26, installation U frame; 27, turning up roller; 28, roll head turning up assembly; 281, bracket; 282, resist seat; 283, electric push rod three; 284, secondary telescopic rod; 285, spring two; 3, base plate; 4, support plate; 5, vertical plate. DETAILED DESCRIPTION

[0031] The embodiments of the present invention are described in detail below with reference to the accompanying drawings, but the present invention can be implemented in many different ways as defined and covered by the claims.

[0032] See also Figure 1A PET sheet forming and processing equipment comprises a base plate 3, vertical plates 5 are symmetrically fixedly connected to the left and right sides of the rear end of the base plate 3, support plates 4 are fixedly connected to the front sides of the left and right vertical plates 5 and the left and right sides of the front end of the base plate 3, a roll changing mechanism 1 for changing rolls and winding the PET sheet is provided between the left and right vertical plates 5, and a roll sticking mechanism 2 for sticking the end of the cut PET sheet on a new roll (the roll surface has a certain stickiness) is provided between the four groups of support plates 4.

[0033] See also Figure 1 , Figure 3 , Figure 4 , Figure 5 and Figure 7 The roll changing mechanism 1 includes a disc seat 13 rotatably connected to the upper side of the vertical plate 5, and auxiliary support rollers 12 and winding rollers 14 are equidistant and staggered at 90 degrees between the left and right side disc seats 13. The auxiliary support roller 12 is fixedly connected between the disc seats 13 on both sides, and the winding roller 14 is rotatably connected to the left disc seat 13. A roll outlet 131 is opened at the position of the right disc seat 13 corresponding to the winding roller 14, and a locking component 15 for automatically locking the PET sheet roll is provided on the winding roller 14. An unwinding component 11 for automatically pushing out the whole roll that has been wound up is provided between the positions of the rear ends of the left and right side vertical plates 5 corresponding to the central axis of the disc seat 13, and a control component 16 for controlling the rotation operation thereof is respectively provided on the left disc seat 13 and the two groups of winding rollers 14.

[0034] See also Figure 1 , Figure 2 and Figure 3 The roll-sticking mechanism 2 includes a mounting U-frame 26 movably arranged between the four groups of support plates 4, and the mounting U-frame 26 is provided with a close component 22 for controlling the forward and backward movement between the four groups of support plates 4 to approach the roll. An upper abutment roller 24 is fixedly connected to the upper end of the mounting U-frame 26, and a lower abutment roller 25 is movably arranged on the lower side of the mounting U-frame 26. Both ends of the lower abutment roller 25 are fixedly connected to a movable seat 214, and a lifting component 21 for controlling the up and down movement of the movable seat 214 on both sides is commonly provided on the movable seat 214. An extension plate 2141 is fixedly connected to the rear end of the movable seat 214, and a turning roller 27 is movably arranged between the extension plates 2141. The turning roller 27 is provided with a roll head turning component 28 for controlling the roll to be close to the upper surface of the roll, and the roll head turning component 28 is also integrated with a cutting component 23 for slitting PET sheets.

[0035] By cooperating with the roll changing mechanism 1 and the roll sticking mechanism 2, the automatic roll changing and unwinding after the PET sheet is wound up, as well as the automatic connection between the roll and the new roll can be stably realized.

[0036] See also Figure 4A double-axis electric push rod 117 is fixedly connected to the center of the right side disc seat 13, and the two output ends of the double-axis electric push rod 117 are fixedly connected to the support fork 116 at the position corresponding to the unwinding port 131. A bite 141 is provided at the right end of the winding roller 14 corresponding to the position of the support fork 116, and the support fork 116 and the bite 141 rotate in coordination.

[0037] During specific operation, the support fork 116 and the bite 141 of the winding roller 14 are controlled by the double-axis electric push rod 117 to cooperate, so as to provide stable end rotation support for the winding roller 14, thereby avoiding the cantilever problem of the winding roller 14 during operation. The support fork 116 and the bite 141 of the winding roller 14 are controlled by the double-axis electric push rod 117 to separate, so that there is no obstacle between the end of the winding roller 14 and the roll outlet 131, so as to facilitate up and down rolling.

[0038] See also Figure 7 The locking assembly 15 includes a plurality of ejection outlets 152 that penetrate through the surface wall of the support and winding roller 14, and the ejection outlets 152 are linearly equidistantly distributed. An ejection head 156 is slidably embedded in the same ejection outlet 152 at a position corresponding to the surface wall of the support and winding roller 14, and a disc 155 is fixedly connected to the end of the ejection head 156 close to the inside of the support and winding roller 14, and a spring 153 is provided between the disc 155 and the inner wall of the support and winding roller 14, and the spring 153 is sleeved on the ejection head 156, and a triangular block 154 is fixedly connected to the side of the disc 155 away from the ejection head 156, and a trapezoidal block 157 is provided between the two triangular blocks 154 at the same position of the ejection outlet 152, and the trapezoidal blocks 157 and the inclined surfaces of the two triangular blocks 154 are correspondingly distributed, and each trapezoidal block 157 is fixedly connected to the connecting rod 151 together, and one end of the connecting rod 151 is fixedly connected to the output end of the electric push rod 2 158, and the electric push rod 2 158 is fixedly connected to the inside of the support and winding roller 14.

[0039] During specific operation, the electric push rod 158 controls the movement of the connecting rod 151 to drive the trapezoidal blocks 157 to squeeze the triangular block 154. The triangular block 154 pushes outward to control the ejection head 156 to be ejected from the ejection outlet 152. Multiple ejection heads 156 are used to eject internally to support the reel synchronously. The multi-point ejection is adopted to ensure the stability of the locking. The spring 153 is pressed against the disc 155. When the electric push rod 158 is reset, the ejection head 156 can automatically retract into the ejection outlet 152, so that there is no protrusion on the surface of the support roller 14, which is conducive to the sliding out of the reel.

[0040] See also Figure 1 and Figure 4The unwinding assembly 11 includes a screw rod 115 rotatably connected to the rear end of the left and right side vertical plates 5 corresponding to the central axis position of the disc seat 13, and a guide rod 114 fixedly connected to the rear end of the left and right side vertical plates 5 corresponding to the central axis position of the disc seat 13, a movable seat 113 is slidably connected to the guide rod 114, and the movable seat 113 is also threadedly connected to the screw rod 115, and an electric push rod 112 is fixedly connected to the upper side of the movable seat 113, and the output end of the electric push rod 112 faces the central axis of the disc seat 13 and is fixedly connected to a shift fork 111, one end of the screw rod 115 is extended and fixedly connected to the output end of a motor 118, and the motor 118 is fixedly connected to the vertical plate 5.

[0041] During specific operation, the electric push rod 112 is used to control the shift fork 111 to contact the winding roller 14, and the motor 118 is used to control the screw rod 115 to rotate and drive the moving seat 113 to move along the guide rod 114. The moving seat 113 drives the shift fork 111 to push the unsupported reel on the winding roller 14, and the reel will slide out smoothly from the reel outlet 131. When the electric push rod 112 controls the shift fork 111 to move away from the winding roller 14, it can avoid interfering with the revolution of the winding roller 14.

[0042] See also Figure 1 , Figure 5 and Figure 6 The control component 16 includes a driving rod 161 fixedly connected to the center of the left disc seat 13, the driving rod 161 is rotatably connected to the outer periphery of the driving rod 161 with a double-wheel roller seat 166, the double-wheel roller seat 166 is rotatably connected to the outer periphery of the double-wheel roller seat 165, the upper left part of the base plate 3 is fixedly connected to motor 2 162, motor 3 163 and motor 4 164 in sequence, the output end of motor 2 162, double-wheel roller seat 1 165 and one group of winding rollers 14 are connected by two groups of synchronous belt structures, the output end of motor 3 163 and the driving rod 161 are connected by a group of synchronous belt structures, the output end of motor 4 164, double-wheel roller seat 2 166 and the remaining group of winding rollers 14 are connected by two groups of synchronous belt structures.

[0043] During specific operation, the output end of motor 2 162, double-wheel roller seat 1 165 and one group of winding rollers 14 are linked by two groups of synchronous belts, and the double-wheel roller seat 1 165 is controlled to rotate by motor 2 162 through a group of synchronous belts, and one group of winding rollers 14 is controlled to rotate by the double-wheel roller seat 1 165, and the driving rod 161 is controlled to rotate by motor 3 163 to rotate the disc seat 13, so that the two groups of winding rollers 14 revolve to change their positions, and the output end of motor 4 164, double-wheel roller seat 2 166 and the remaining group of winding rollers 14 are linked by two groups of synchronous belts, and the double-wheel roller seat 2 166 is controlled to rotate by motor 4 164 through a group of synchronous belts, and the remaining group of winding rollers 14 is controlled to rotate by the double-wheel roller seat 2 166. Compared with directly installing the motor on the disc seat 13, the circuit connection in this scheme is more convenient, and there is no need to use special conductive bearings to power the rotating motor.

[0044] See also Figure 1 , Figure 2 and Figure 3 The lifting assembly 21 includes a screw rod 212 rotatably connected to the right side of the mounting U frame 26, and a guide rod 213 fixedly connected to the left side of the mounting U frame 26, a right side moving seat 214 is threadedly connected to the screw rod 212, and a left side moving seat 214 is slidably connected to the guide rod 213, the upper end of the screw rod 212 extends to the outside of the mounting U frame 26 and is fixedly connected to the output end of the motor 5 211, and the motor 5 211 is fixedly connected to the outside of the mounting U frame 26.

[0045] During specific operation, the motor 5 211 controls the screw rod 212 to rotate and drives the movable seat 214 to move along the guide rod 213, so that the lower contact roller 25 can be close to the reel to press the PET sheet on one side.

[0046] See also Figure 1 and Figure 2 The close component 22 includes a mobile Z frame 222 symmetrically fixedly connected to the left and right sides of the U frame 26, the right mobile Z frame 222 is threadedly connected to the screw rod three 224, the left mobile Z frame 222 is slidably connected to the guide rod three 223, the guide rod three 223 is fixedly connected between the two support plates 4 on the left, the screw rod three 224 is rotatably connected between the two support plates 4 on the right, the front end of the screw rod three 224 extends to the outside of the front support plate 4 and is fixedly connected to the output end of the motor six 221, and the motor six 221 is fixedly connected to the front support plate 4.

[0047] During specific operation, the motor six 221 controls the rotation of the screw rod three 224 to drive the mobile Z frame 222 to move along the guide rod three 223. The mobile Z frame 222 controls the installation U frame 26 to move forward and backward as a whole, so that the upper contact roller 24 can be attached to the reel, and the roll-attaching mechanism 2 and the roll-changing mechanism 1 can be separated by a distance to avoid interfering with the revolution of the auxiliary support roller 12 and the support roller 14 in the roll-changing mechanism 1.

[0048] See also Figure 2 and Figure 3 The roll head turning-up component 28 includes an electric push rod 3 283 fixedly connected to the rear side of the extension plate 2141, the output end of the electric push rod 3 283 faces upward, and a stop 282 is fixedly connected between the output ends of the left and right electric push rods 3 283, and a secondary telescopic rod 284 is symmetrically fixedly connected to the front side of the stop 282, and the two secondary telescopic rods 284 are fixedly connected to a bracket 281 at one end away from the stop 282, and a turning-up roller 27 is fixedly connected inside the bracket 281, and a spring 285 is provided between the bracket 281 and the stop 282, and the spring 285 is sleeved on the outer periphery of the secondary telescopic rod 284.

[0049] See also Figure 1 , Figure 2 and Figure 3 The cutting component 23 includes a movable opening opened in the stop 282, a slide rod 233 is fixedly connected in the movable opening, an electric slider 232 is slidably connected on the slide rod 233 and in the movable opening, and a blade 231 is fixedly connected to the upper side of the electric slider 232.

[0050] During specific operation, the electric slider 232 controls the blade 231 to move left and right along the slide bar 233, so that the PET sheet can be cut flushly, and the electric push rod 3 283 is used to raise the support 282 as a whole. The turning roller 27 will continuously adapt to the changes in the curved surface of the roll due to the rebound effect of the spring 2 285 and the guiding effect of the secondary telescopic rod 284, and always keep in contact with the surface of the roll. The cut PET sheet will follow the movement of the turning roller 27 and continuously fit on the roll until the turning roller 27 reaches the highest point and presses the end of the PET sheet against the roll.

[0051] See also Figure 1-Figure 9 When in use: S1: The support fork 116 and the bite 141 of the winding roller 14 are controlled to separate by the double-axis electric push rod 117, so that there is no obstacle between the end of the winding roller 14 and the unwinding port 131, and then the roll is installed on the winding roller 14. During installation, the connecting rod 151 is controlled by the second electric push rod 158 to move and drive each trapezoidal block 157 to squeeze the triangular block 154. The triangular block 154 moves outward to control the ejection head 156 to be ejected from the ejection port 152, and multiple ejection heads 156 are used to eject synchronously to support the roll internally, and then the support fork 116 and the bite 141 of the winding roller 14 are controlled by the double-axis electric push rod 117 to cooperate to provide stable end rotation support for the winding roller 14.

[0052] S2: Make a group of rolls face the middle of the front end, and the PET sheets produced by the PET sheet production equipment are directly led to the group of rolls, and then the output end of the second motor 162, the double-wheel roller seat 165 and the group of winding rollers 14 are linked by two groups of synchronous belts. The second motor 162 controls the rotation of the double-wheel roller seat 165 through a group of synchronous belts, and the double-wheel roller seat 165 drives and controls the rotation of the group of winding rollers 14 for winding.

[0053] S3: After the winding rollers 14 are wound up, the motor 163 controls the driving rod 161 to rotate, so that the disc seat 13 rotates, and the two groups of winding rollers 14 rotate and alternate their positions. The PET sheet will be supported by the auxiliary support rollers 12 into a V shape (such as Fig. 9 As shown in the figure), the motor 5 211 controls the screw rod 212 to rotate and drives the movable seat 214 to move along the guide rod 213. When the blade 231 contacts the PET sheet, the motor 5 211 is stopped, and the electric slider 232 controls the blade 231 to move left and right along the slide rod 233 to perform a flush cross-cut on the PET sheet. After the PET sheet is cut, the motor 6 221 controls the screw rod 3 224 to rotate and drives the movable Z frame 222 to move along the guide rod 3 223. The movable Z frame 222 controls the installation U frame 26 to move forward and backward as a whole, so that the upper roller 24 is attached to the new roll, and the motor 5 21 is continued to be driven. The control screw rod 212 is rotated to drive the movable seat 214 to move along the guide rod 213, so that the lower contact roller 25 is close to the reel to press the PET sheet on one side. Then, the contact seat 282 is raised as a whole by the electric push rod 3 283. The turning roller 27 is continuously adapted to the curved surface change of the reel by the rebound effect of the spring 285 and the guiding effect of the secondary telescopic rod 284, and always keeps in contact with the surface of the reel. The cut PET sheet will follow the movement of the turning roller 27 and continuously stick to the reel until the turning roller 27 reaches the highest point and presses the end of the PET sheet on the new reel.

[0054] S4: Motor 2 162 and motor 4 164 are operated simultaneously, and the motor 4 164 controls the replaced reel to perform a new round of winding operation. During winding, the upper roller 24, the lower roller 25 and the turning roller 27 are all reset, and then the motor 2 162 controls the reel that has been wound to rewind the tail. After the rewinding is completed, the locking state of the support roller 14 is released, and then the double-axis electric push rod 117 controls the support fork 116 and the bite 141 of the support roller 14 to separate, so that the end of the support roller 14 is close to the roll outlet. There is no obstacle between 131, the electric push rod 112 controls the shift fork 111 to contact the winding roller 14, the motor 118 controls the screw rod 115 to rotate and drive the moving seat 113 to move along the guide rod 114, the moving seat 113 drives the shift fork 111 to push the unsupported reel on the winding roller 14, the reel slides out smoothly from the reel outlet 131, and then the reel to be loaded is replaced on the winding roller 14, and then the shift fork 111 and the supporting fork 116 are reset to lock the new reel on the winding roller 14.

[0055] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A PET sheet forming and processing device, comprising a base plate (3), wherein the rear end of the base plate (3) is symmetrically fixedly connected to the left and right sides thereof, and the front sides of the left and right sides of the left and right sides of the front end of the base plate (3) are fixedly connected to the support plates (4), characterized in that: A reel changing mechanism (1) for changing rolls and rewinding the PET sheet is provided between the left and right side vertical plates (5), and a reel attaching mechanism (2) for attaching the end of the cut PET sheet to a new reel is provided between the four groups of support plates (4); The roll changing mechanism (1) comprises a disc seat (13) rotatably connected to the upper side of the vertical plate (5), auxiliary support rollers (12) and support rollers (14) are arranged between the left and right side disc seats (13) at equal intervals and staggered at 90 degrees, the auxiliary support rollers (12) are fixedly connected between the two side disc seats (13), the support rollers (14) are rotatably connected to the left side disc seat (13), a roll outlet (131) is provided at a position corresponding to the support roller (14) on the right side disc seat (13), a locking component (15) for automatically locking the PET sheet roll is provided on the support roller (14), an unwinding component (11) for automatically pushing out the whole roll after winding is completed is provided between the rear ends of the left and right side vertical plates (5) corresponding to the central axis of the disc seat (13), and the left side disc seat (13) and the two groups of support rollers (14) are respectively provided with a control component (16) for controlling their rotational operation; The roll-sticking mechanism (2) comprises a mounting U frame (26) movably arranged between four groups of support plates (4), the mounting U frame (26) is provided with a close-approaching assembly (22) for controlling the mounting U frame (26) to move forward and backward between the four groups of support plates (4) to be close to the roll, an upper abutting roller (24) is fixedly connected to the upper end of the mounting U frame (26), a lower abutting roller (25) is movably arranged on the lower side of the mounting U frame (26), two ends of the lower abutting roller (25) are fixedly connected to two movable seats (214), and the two movable seats (214) on both sides are arranged on the upper end of the mounting U frame (26). 4) are provided with a lifting assembly (21) for controlling the vertical movement of the lifting assembly (21) in the mounting U frame (26); the rear end of the movable seat (214) is fixedly connected with an extension plate (2141); a turning roller (27) is movably provided between the extension plates (2141); the turning roller (27) is provided with a roll head turning assembly (28) for controlling the turning roller to be closely attached to the upper surface of the roll; the roll head turning assembly (28) is also integrated with a cutting assembly (23) for cutting the PET sheet; The roll head turning assembly (28) comprises an electric push rod 3 (283) fixedly connected to the rear side of the extension plate (2141), the output end of the electric push rod 3 (283) faces upward, and a stopper (282) is fixedly connected between the output ends of the left and right electric push rods 3 (283), and a secondary telescopic rod (284) is symmetrically fixedly connected to the front side of the stopper (282), and one end of the two secondary telescopic rods (284) away from the stopper (282) is fixedly connected to a bracket (281), and a turning roller (27) is fixedly connected inside the bracket (281), and a spring 2 (285) is provided between the bracket (281) and the stopper (282), and the spring 2 (285) is sleeved on the outer periphery of the secondary telescopic rod (284); By using the roll changing mechanism (1) and the roll sticking mechanism (2) in coordination, automatic roll changing and unwinding of the PET sheet can be stably achieved, as well as automatic connection between the roll and a new drum.

2. A PET sheet forming and processing equipment according to claim 1, characterized in that: A double-axis electric push rod (117) is fixedly connected to the center of the right side disc seat (13); two output ends of the double-axis electric push rod (117) are fixedly connected to support forks (116) at positions corresponding to the roll outlet (131); a bite (141) is provided at the right end of the support roll roller (14) at a position corresponding to the support fork (116); the support fork (116) and the bite (141) are rotatably matched.

3. A PET sheet forming and processing equipment according to claim 1, characterized in that: The locking assembly (15) comprises a plurality of ejection outlets (152) penetrating and opening on the surface wall of the support roller (14), wherein the ejection outlets (152) are linearly and equidistantly distributed, and an ejection head (156) is slidably embedded in the same ejection outlet (152) at a position corresponding to the surface wall of the support roller (14), and a disc (155) is fixedly connected to one end of the ejection head (156) close to the inside of the support roller (14), and a spring (153) is arranged between the disc (155) and the inner wall of the support roller (14), and the spring (153) is sleeved on the ejection head (156). A triangular block (154) is fixedly connected to one side of the disc (155) away from the ejection head (156), a trapezoidal block (157) is arranged between the two triangular blocks (154) at the same ejection outlet (152), the trapezoidal block (157) and the inclined surfaces of the two triangular blocks (154) are correspondingly distributed, each trapezoidal block (157) is fixedly connected to a connecting rod (151), one end of the connecting rod (151) is fixedly connected to the output end of the second electric push rod (158), and the second electric push rod (158) is fixedly connected to the inside of the support roll (14).

4. A PET sheet forming and processing equipment according to claim 1, characterized in that: The unwinding assembly (11) comprises a screw rod (115) rotatably connected to the rear ends of the left and right side vertical plates (5) at a position corresponding to the central axis of the disc seat (13), and a guide rod (114) fixedly connected to the rear ends of the left and right side vertical plates (5) at a position corresponding to the central axis of the disc seat (13); a movable seat (113) is slidably connected to the guide rod (114); the movable seat (113) is also threadedly connected to the screw rod (115); an electric push rod (112) is fixedly connected to the upper side of the movable seat (113); the output end of the electric push rod (112) faces the central axis of the disc seat (13) and is fixedly connected to a shift fork (111); one end of the screw rod (115) is extended and fixedly connected to the output end of a motor (118); and the motor (118) is fixedly connected to the vertical plate (5).

5. A PET sheet forming and processing equipment according to claim 1, characterized in that: The control assembly (16) comprises a driving rod (161) fixedly connected to the center of the left circular disc seat (13); the driving rod (161) is rotatably connected to a second double-wheel roller seat (166) on the periphery thereof; the second double-wheel roller seat (166) is rotatably connected to a first double-wheel roller seat (165) on the periphery thereof; a second motor (162), a third motor (163) and a fourth motor (164) are fixedly connected to the upper left side of the base plate (3) in sequence; the output end of the second motor (162), the first double-wheel roller seat (165) and one group of the support rollers (14) are connected to each other through two groups of synchronous belt structures; the output end of the third motor (163) and the driving rod (161) are connected to each other through one group of synchronous belt structures; the output end of the fourth motor (164), the second double-wheel roller seat (166) and the remaining group of the support rollers (14) are connected to each other through two groups of synchronous belt structures.

6. A PET sheet forming and processing equipment according to claim 1, characterized in that: The lifting assembly (21) includes a screw rod 2 (212) rotatably connected to the right side of the mounting U frame (26), and a guide rod 2 (213) fixedly connected to the left side of the mounting U frame (26); a right side moving seat 2 (214) is threadedly connected to the screw rod 2 (212); a left side moving seat 2 (214) is slidably connected to the guide rod 2 (213); the upper end of the screw rod 2 (212) extends to the outside of the mounting U frame (26) and is fixedly connected to the output end of the motor 5 (211); and the motor 5 (211) is fixedly connected to the outside of the mounting U frame (26).

7. A PET sheet forming and processing equipment according to claim 1, characterized in that: The close-fitting component (22) comprises a movable Z frame (222) symmetrically fixedly connected to the left and right sides of the U frame (26), the right movable Z frame (222) being threadedly connected to the screw rod three (224), the left movable Z frame (222) being slidably connected to the guide rod three (223), the guide rod three (223) being fixedly connected between the two support plates (4) on the left side, the screw rod three (224) being rotatably connected between the two support plates (4) on the right side, the front end of the screw rod three (224) extending to the outside of the front support plate (4) and fixedly connected to the output end of the motor six (221), and the motor six (221) being fixedly connected to the front support plate (4).

8. The PET sheet forming and processing equipment according to claim 1, characterized in that: The cutting component (23) comprises a movable opening formed in the stopper (282), a sliding rod (233) being fixedly connected in the movable opening, an electric sliding block (232) being slidably connected on the sliding rod (233) and in the movable opening, and a blade (231) being fixedly connected on the upper side of the electric sliding block (232).

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