An in-line reciprocating feeding system for a paper cup machine

Abstract

The application relates to the material conveying technical field and discloses an embedded reciprocating feeding system of a paper cup machine, which comprises a table top, a discharging port is arranged on the table top, and a hollow mold, an edge sealing assembly, an upper clamp assembly and a lower clamp assembly are arranged on the top of the table top. The upper clamp assembly and the lower clamp assembly clamp the cup wall to realize the transfer of the cup wall, and then the lower clamp assembly realizes the discharging of the cup wall. Compared with the mode of pushing the cup wall edge in the prior art, the damage to the cup wall edge is avoided, the subsequent processing is avoided, the quality of the paper cup is improved, in addition, since the clamping positions of the upper clamp assembly and the lower clamp assembly are the edge sealing parts of the cup wall, the edge sealing position is continuously clamped during the transfer process, which is equivalent to prolonging the edge sealing time, the glue bonding at the edge sealing part is more firm, the edge sealing effect of the cup wall is improved under the premise of not influencing the production efficiency, and the quality of the paper cup is further improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of material conveying, in particular to an embedded reciprocating feeding system of a paper cup machine. BACKGROUND

[0002] In the process of paper cup production, the paper sheet after die cutting and forming is conveyed to a sealing processing position, then sealing and bonding are performed, a ring-shaped cup wall is formed, and then it is conveyed to a bottom sealing processing position for bottom sealing processing. The material conveying between the sealing processing position and the bottom sealing processing position is generally performed by reciprocating pushing. The specific method is that a motor controls the rotation of a crank, and then pushes the push rod to reciprocate. The push rod pushes the cup wall end face during reciprocation, and then pushes the cup wall to move to the next position.

[0003] The above feeding method has certain problems. Since the contact surface between the cup wall and the push rod is small, and in order to pursue processing efficiency, the speed of the push rod is relatively fast, the impact force on the edge of the cup wall is large, which easily causes the edge of the cup wall to deform, affects the subsequent processing, and reduces the quality of the paper cup.

[0004] At present, there is no effective solution to the problems in the related art. SUMMARY

[0005] In view of the deficiencies of the prior art, the present application provides an embedded reciprocating feeding system of a paper cup machine, which has the advantages of improving the quality of paper cups, and solves the problem of deformation of the edge of the cup wall caused by the feeding method of reciprocating pushing the edge of the cup wall in the prior art paper cup processing, which reduces the quality of the paper cup.

[0006] To solve the above technical problems, the present application provides the following technical scheme: an embedded reciprocating feeding system of a paper cup machine, comprising a table top, a discharge port is arranged on the table top, a hollow mold, an edge sealing assembly, an upper clamp assembly and a lower clamp assembly are arranged on the top of the table top;

[0007] The hollow mold is fixedly installed on the table top, a top plate capable of being retracted to the inside of the hollow mold is arranged on the top surface of the hollow mold, and the hollow mold is used for positioning during edge sealing of the paper cup;

[0008] The edge sealing assembly is fixedly installed on the table top, and the edge sealing assembly is used for pressing down the paper cup to realize edge sealing;

[0009] The upper clamp assembly and the lower clamp assembly are both slidingly installed on the table top, and the upper clamp assembly and the lower clamp assembly cooperate to clamp the sealed paper cup and transfer the paper cup;

[0010] When the paper sheet is placed on the hollow mold, the edge sealing assembly extrudes the cup wall of the paper sheet edge when the edge sealing assembly operates, and then the top plate is retracted to the inside of the hollow mold. After the lower clamp assembly and the upper clamp assembly operate, they move to the hollow mold to clamp the edge position and transfer the cup wall to the blanking station. Finally, the upper clamp assembly releases the clamping of the cup wall, and the lower clamp assembly continues to operate to blank the cup wall.

[0011] Preferably, a mounting rack is fixed on the table top, one end of the hollow mold away from the lower clamp assembly is fixed with the mounting rack, and the other end of the hollow mold close to the lower clamp assembly is provided with an opening. A first air cylinder is fixed inside the hollow mold, and the output end of the first air cylinder is fixedly connected with the bottom of the top plate.

[0012] Preferably, the edge sealing assembly includes a cross beam above the hollow mold, the bottom of the cross beam is fixed with the table top through a hydraulic cylinder, and a heating press plate is fixed on the bottom of the cross beam and above the top plate.

[0013] Preferably, the upper clamp assembly includes a slide rail and an upper clamp plate at the bottom of the slide rail. One end of the slide rail is fixed with a first motor, the output shaft of the first motor is fixed with a bidirectional screw rod, both ends of the bidirectional screw rod are rotatably connected with the slide rail, two symmetrically arranged nut seats are threadedly connected with the bidirectional screw rod, both the nut seats are slidably connected with the slide rail, both the bottom of the nut seats are hingedly connected with a push rod, and one end of the push rod away from the nut seat is hingedly connected with the top surface of the upper clamp plate.

[0014] Preferably, the upper clamp assembly further includes a guide rail, one end of the guide rail is fixed with the mounting rack, the other end of the guide rail is fixed with the table top through a support, a sliding block is slidably connected with the guide rail, the sliding block is fixedly connected with the slide rail, a second motor is fixed at one end of the guide rail, the output shaft of the second motor is fixed with a first synchronous wheel, a base shaft is rotatably connected at the other end of the guide rail, the base shaft is fixed with a second synchronous wheel, a synchronous belt is connected between the first synchronous wheel and the second synchronous wheel, and the sliding block is fixedly connected with the synchronous belt.

[0015] Preferably, the lower clamp assembly includes a frame seat, a movable plate is arranged inside the frame seat, both ends of the movable plate are fixed with a rotating shaft, the movable plate is rotatably connected with the frame seat through the rotating shaft, a third motor is fixed on the side wall of the frame seat, the output shaft of the third motor is fixedly connected with the rotating shaft, a fourth motor is fixed on the bottom surface of the movable plate, the output shaft of the fourth motor penetrates through the top of the movable plate and is fixed with a connecting block, and one end of the connecting block is fixed with a lower clamp plate.

[0016] Preferably, an electric sliding table is fixed at the bottom of the table top, a movable seat is arranged on the electric sliding table, a strip-shaped hole is formed on the surface of the table top, the bottom of the frame seat penetrates through the strip-shaped hole and is fixed with the movable seat.

[0017] Preferably, the upper clamp plate bottom surface is provided as a concave surface, and the lower clamp plate top surface is provided as a convex surface, and the convex surface and the concave surface are matched.

[0018] Preferably, a clamping assembly is arranged on the connecting block, the clamping assembly comprises a horizontal pressing block and a second air cylinder, two identical and parallel distributed supporting plates are hingedly arranged at the bottom of the horizontal pressing block, the bottom ends of the two supporting plates are hingedly connected with the connecting block, and one end of the second air cylinder is rotationally connected with the connecting block, and the other end of the second air cylinder is rotationally connected with the side edge of one of the supporting plates.

[0019] Compared with the prior art, the paper cup machine embedded reciprocating feeding system has the following beneficial effects:

[0020] 1. The paper cup machine embedded reciprocating feeding system realizes the transfer of the cup wall through the clamping of the upper clamp assembly and the lower clamp assembly, and realizes the discharging of the cup wall through the lower clamp assembly. Compared with the prior art of pushing the edge of the cup wall, the damage to the edge of the cup wall is avoided, and the subsequent processing is avoided, thereby improving the quality of the paper cup. In addition, since the clamping positions of the upper clamp assembly and the lower clamp assembly are the edge sealing parts of the cup wall, the edge sealing position is continuously clamped during the transfer process, which is equivalent to extending the edge sealing time, so that the glue bonding at the edge sealing part is more firm, the edge sealing effect of the cup wall is improved without affecting the production efficiency, and the quality of the paper cup is further improved.

[0021] 2. The paper cup machine embedded reciprocating feeding system has the advantages that the bottom surface of the upper clamp plate is provided as a concave surface, and the top surface of the lower clamp plate is provided as a convex surface, which is beneficial to match the curvature of the cup wall, and the cup wall is clamped to fit the cup wall, thereby avoiding deformation of the cup wall and being more safe and stable.

[0022] 3. The paper cup machine embedded reciprocating feeding system has the advantages that the clamping assembly is arranged, and when the production line is running at high speed, the cup wall is fixed in advance by the horizontal pressing block during discharging, thereby effectively avoiding the cup wall from being thrown off during the rotation of the lower clamp plate, ensuring the stability of the discharging process, reducing the risk, and having a higher fault tolerance. DETAILED DESCRIPTION

[0023] Figure 1 It is a three-dimensional structure diagram of the paper cup machine embedded reciprocating feeding system Figure One ;

[0024] Figure 2 It is a three-dimensional structure diagram of the paper cup machine embedded reciprocating feeding system Figure Two ;

[0025] Figure 3 It is a structure diagram of the hollow mold of the application

[0026] Figure 4The schematic diagram of clamping effect of the upper clamp assembly and the lower clamp assembly of the application;

[0027] Figure 5 The working schematic diagram of the clamping assembly of the application;

[0028] Figure 6 The working schematic diagram of the clamping assembly of the application; Figure 5 The enlarged view of A part of the clamping assembly of the application;

[0029] Figure 7 The schematic diagram of blanking effect of the lower clamp assembly of the application;

[0030] Figure 8 The working schematic diagram of the clamping assembly of the application; Figure 7 The enlarged view of B part of the clamping assembly of the application.

[0031] In the figure: 1, table top; 2, blanking port; 3, hollow mold; 31, top plate; 32, opening; 33, first air cylinder; 4, edge sealing assembly; 41, cross beam; 42, hydraulic cylinder; 43, heating press plate; 5, upper clamp assembly; 501, sliding rail; 502, upper clamp plate; 503, first motor; 504, bidirectional screw; 505, nut seat; 506, push rod; 507, guide rail; 508, support; 509, sliding block; 510, second motor; 511, first synchronous wheel; 512, base shaft; 513, second synchronous wheel; 514, synchronous belt; 6, lower clamp assembly; 601, frame seat; 602, movable plate; 603, rotating shaft; 604, third motor; 605, fourth motor; 606, connecting block; 607, lower clamp plate; 608, electric sliding table; 609, movable seat; 610, strip-shaped hole; 611, horizontal press block; 612, second air cylinder; 613, support plate; 7, mounting frame. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the application will be clearly and completely described below with reference to the drawings in the embodiments of the application. Obviously, the described embodiments are only part of the embodiments of the application, rather than all the embodiments of the application. Based on the embodiments in the application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the application.

[0033] As introduced in the background, the existing problems in the prior art are solved by the paper cup machine embedded reciprocating feeding system.

[0034] Please refer to Figures 1-2 A paper cup machine embedded reciprocating feeding system, comprising a table top 1, wherein the table top 1 is provided with a blanking port 2, and the top of the table top 1 is provided with a hollow mold 3, an edge sealing assembly 4, an upper clamp assembly 5 and a lower clamp assembly 6.

[0035] The hollow mold 3 is fixedly installed on the table top 1, and the top surface of the hollow mold 3 is provided with a top plate 31 capable of being retracted to the inside of the hollow mold 3, and the hollow mold 3 is used for positioning when the paper cup is edge sealed;

[0036] The edge sealing assembly 4 is fixedly installed on the table top 1, and the edge sealing assembly 4 is used for pressing down the paper cup to realize edge sealing;

[0037] The upper clamp assembly 5 and the lower clamp assembly 6 are both slidingly installed on the table top 1, and the upper clamp assembly 5 and the lower clamp assembly 6 are used for clamping the edge sealed paper cup and transferring the paper cup after cooperation;

[0038] When the paper sheet is sleeved on the hollow mold 3, the edge sealing assembly 4 is operated to extrude the surface of the top plate 31 to seal the paper sheet to form a cup wall, and then the top plate 31 is retracted to the inside of the hollow mold 3, and the upper clamp assembly 5 and the lower clamp assembly 6 are operated to move to the hollow mold 3 to clamp the edge sealing position and transfer the cup wall to the unloading station, and finally the upper clamp assembly 5 releases the clamping of the cup wall, and the lower clamp assembly 6 continues to operate to unload the cup wall.

[0039] The table top 1 is supported by the bracket 508 at the bottom, the shape of the hollow mold 3 is the same as that of the existing mold, the top surface of the hollow mold 3 is provided with a slot hole extending to the end surface of the hollow mold 3, the top plate 31 is just located in the slot hole and matches the shape of the slot hole, and when the paper sheet is wrapped on the mold, the edge of the paper sheet just overlaps the surface of the top plate 31;

[0040] In use, when the paper sheet is wrapped on the hollow mold 3, the edge sealing assembly 4 is operated to press down on the top plate 31 to heat and press the edge of the paper sheet, so that the edge of the paper sheet is bonded to form a cylindrical cup wall, then the edge sealing assembly 4 is reset while the top plate 31 is retracted to the inside of the hollow mold 3, and the upper clamp assembly 5 and the lower clamp assembly 6 are operated at the same time, the lower clamp assembly 6 moves to the initial position before the top plate 31 is retracted when the lower clamp assembly 6 is operated, the upper clamp assembly 5 moves to the top of the cup wall when the upper clamp assembly 5 is operated, and cooperates with the lower clamp assembly 6 to clamp and fix the edge sealing position of the cup wall, then the upper clamp assembly 5 and the lower clamp assembly 6 continue to operate and move to the unloading station at the same time, so that the cup wall is separated from the mold and also moves to the unloading station, then the upper clamp assembly 5 is operated again to release the clamping of the cup wall, at this time the cup wall is still placed on the lower clamp assembly 6, and finally the lower clamp assembly 6 is operated to transfer the cup wall to the unloading port 2 to unload the cup wall;

[0041] By setting the hollow mold 3, setting the retractable top plate 31 on the mold, further setting the upper clamp assembly 5 and the lower clamp assembly 6, the cup wall is transported by clamping the cup wall by the upper clamp assembly 5 and the lower clamp assembly 6, and the cup wall is discharged by the lower clamp assembly 6. Compared with the pushing mode of the cup wall edge in the prior art, the damage to the cup wall edge is avoided, and the subsequent processing is avoided, thereby improving the quality of the paper cup. In addition, since the clamping position of the upper clamp assembly 5 and the lower clamp assembly 6 is the edge sealing part of the cup wall, the edge sealing position is continuously clamped during the transportation process, which is equivalent to extending the edge sealing time, so that the glue bonding at the edge sealing part is more firm, and the edge sealing effect of the cup wall is improved without affecting the production efficiency, thereby further improving the quality of the paper cup.

[0042] Further, referring to Figure 3 , the mounting frame 7 is fixed on the table top 1, the hollow mold 3 is fixed away from the lower clamp assembly 6 at one end, the hollow mold 3 is provided with an opening 32 at one end close to the lower clamp assembly 6, the first air cylinder 33 is fixed inside the hollow mold 3, and the output end of the first air cylinder 33 is fixedly connected with the bottom of the top plate 31;

[0043] Among them, the lower clamp assembly 6 enters the hollow mold 3 through the opening 32 when it is running, and the first air cylinder 33 is preferably provided as two and vertically arranged;

[0044] In use, after the cup wall is edge sealed, the first air cylinder 33 is retracted after running, driving the top plate 31 to move downward into the hollow mold 3, and when the cup wall is separated from the hollow mold 3, the first air cylinder 33 is elongated again after running, driving the top plate 31 to move upward to reset, so that the surface of the top plate 31 is recombined with the surface of the hollow mold 3, to realize the next edge sealing work;

[0045] By setting the movable top plate 31 on the hollow mold 3, it is beneficial to retract during discharging, so as to avoid the lower clamp assembly 6, and reset after discharging for the next edge sealing work.

[0046] Further, referring to Figure 1 and Figure 4 , the edge sealing assembly 4 includes a cross beam 41 above the hollow mold 3, the cross beam 41 is fixed to the table top 1 through a hydraulic cylinder 42 at the bottom, and the cross beam 41 is further fixed with a heating pressure plate 43 at the bottom;

[0047] Among them, the hydraulic cylinder 42 is provided as two and respectively located at both ends of the cross beam 41, and the structure of the heating pressure plate 43 is the prior art, which will not be described in detail. In use, the hydraulic cylinder 42 drives the cross beam 41 and the heating pressure plate 43 to move downward when it is retracted, and the heating pressure plate 43 is just pressed on the top plate 31, so as to seal the paper sheet to form the cup wall. After the edge sealing is completed, the hydraulic cylinder 42 drives the heating pressure plate 43 to reset.

[0048] By setting the edge assembly 4, it is beneficial to edge the paper sheet by heating the press plate 43 to form the cup wall.

[0049] Further, referring to Figures 2-8 , the upper clamp assembly 5 comprises a slide rail 501 and an upper clamp plate 502 at the bottom of the slide rail 501, one end of the slide rail 501 is fixedly connected with a first motor 503, the output shaft of the first motor 503 is fixedly connected with a bidirectional screw rod 504, both ends of the bidirectional screw rod 504 are rotatably connected with the slide rail 501, the bidirectional screw rod 504 is threadedly connected with two symmetrically arranged nut seats 505, both of the nut seats 505 are slidably connected with the slide rail 501, both of the nut seats 505 are hingedly connected with push rods 506 at the bottom, one end of the push rod 506 away from the nut seat 505 is hingedly connected with the top surface of the upper clamp plate 502, the upper clamp assembly 5 further comprises a guide rail 507, one end of the guide rail 507 is fixedly connected with the mounting frame 7, the other end of the guide rail 507 is fixedly connected with the table top 1 through a support 508, the guide rail 507 is slidably connected with a sliding block 509, the sliding block 509 is fixedly connected with the slide rail 501, one end of the guide rail 507 is fixedly connected with a second motor 510, the output shaft of the second motor 510 is fixedly connected with a first synchronous pulley 511, the other end of the guide rail 507 is rotatably connected with a base shaft 512, the base shaft 512 is fixedly connected with a second synchronous pulley 513, the second synchronous pulley 513 and the first synchronous pulley 511 are connected with a synchronous belt 514, the sliding block 509 is fixedly connected with the synchronous belt 514, the lower clamp assembly 6 comprises a frame seat 601, the frame seat 601 is provided with a movable plate 602 on the inner side, both ends of the movable plate 602 are fixedly connected with shafts 603, the movable plate 602 is rotatably connected with the frame seat 601 through the shafts 603, a third motor 604 is fixedly connected with the side wall of the frame seat 601, the output shaft of the third motor 604 is fixedly connected with the shafts 603, a fourth motor 605 is fixedly connected with the bottom surface of the movable plate 602, the output shaft of the fourth motor 605 penetrates through the top of the movable plate 602 and is fixedly connected with a connecting block 606, one end of the connecting block 606 is fixedly connected with a lower clamp plate 607, the bottom of the table top 1 is fixedly connected with an electric sliding table 608, the electric sliding table 608 is provided with a movable seat 609, a strip-shaped hole 610 is formed on the surface of the table top 1, the frame seat 601 penetrates through the strip-shaped hole 610 and is fixedly connected with the movable seat 609;

[0050] Wherein, the upper clamp plate 502 and the lower clamp plate 607 are both provided in a strip shape, the bidirectional screw rod 504 is provided with two groups of symmetrical threads with opposite rotation directions, the two nut seats 505 are matched with the two groups of threads respectively, the bracket 508 is fixed on the table top 1 through screws at the bottom end, the bracket 508 is fixed with the guide rail 507 at the top end, the synchronous belt 514, the guide rail 507, the sliding table and the strip-shaped hole 610 are distributed in parallel, the frame seat 601 is preferably provided in a U shape, the second motor 510, the third motor 604 and the fourth motor 605 are all provided as servo motors;

[0051] In use, after the cup wall is sealed, the second motor 510 and the electric sliding table 608 are simultaneously operated first, the second motor 510 drives the first synchronous wheel 511 to rotate when operating, the first synchronous wheel 511 drives the synchronous belt 514 to rotate when rotating, the synchronous belt 514 pushes the rod sliding block 509 when rotating, so that the sliding block 509 slides along the guide rail 507, the sliding block 509 drives the sliding rail 501 and the upper clamp plate 502 on the sliding rail 501 to move when sliding, until the upper clamp plate 502 moves above the sealing position of the cup wall, and the electric sliding block 509 drives the movable seat 609 to move when operating, the movable seat 609 drives the frame seat 601 and the lower clamp plate 607 on the frame seat 601 to move when moving, until the lower clamp plate 607 extends below the sealing position of the cup wall; then the first motor 503 is operated, the first motor 503 drives the bidirectional screw rod 504 to rotate, the bidirectional screw rod 504 drives the two nut seats 505 to move towards the middle at the same time when rotating, the two nut seats 505 drive the top end of the push rod 506 to move when moving, so as to push the upper clamp plate 502 downward through the push rod 506, and the upper clamp plate 502 is clamped with the lower clamp plate 607 at the sealing position of the cup wall after moving downward, so as to realize the fixation of the cup wall; then the second motor 510 and the electric sliding table 608 are operated again at the same time, and the upper clamp plate 502 and the lower clamp plate 607 can be driven to move reversely at the same time, the upper clamp plate 502 and the lower clamp plate 607 can drive the cup wall to move and separate from the hollow mold 3 when moving at the same time, so as to finally move the cup wall to the discharging station; then the second motor 510 is operated to drive the bidirectional screw rod 504 to rotate reversely, and the upper clamp plate 502 can be driven to move upward and separate from the cup wall, so as to release the fixation of the cup wall; finally, the fourth motor 605 and the third motor 604 are started in sequence, the fourth motor 605 drives the connecting block 606 to rotate by ninety degrees when operating, so as to drive the lower clamp plate 607 to rotate by ninety degrees, which is just to move the cup wall on the lower clamp plate 607 to above the discharging port 2, the third motor 604 drives the rotating shaft 603 to rotate when operating, so as to drive the movable plate 602 to rotate, the movable plate 602 drives the connecting block 606 and the lower clamp plate 607 to rotate when rotating, at this time, the lower clamp plate 607 is inclined after rotating, the cup wall on the lower clamp plate 607 slides along the lower clamp plate 607 and falls from the discharging port 2, so as to realize discharging, and the third motor 604 and the fourth motor 605 are operated again to drive the lower clamp plate 607 to reset after discharging is completed;

[0052] By setting the upper clamp assembly 5 and the lower clamp assembly 6, it is beneficial to control the reciprocating movement of the lower clamp plate 607 and the upper clamp plate 502 and clamp the edge sealing position on the cup wall, which facilitates the transfer of the cup wall, and the transfer is realized by clamping the cup wall, which can avoid damage to the cup wall edge compared with the prior art, thereby improving the quality of the paper cup. At the same time, the edge sealing position can be clamped during the transfer process, which improves the edge sealing effect without affecting the production efficiency, and the cup wall can be discharged by the lower clamp assembly 6, so as to be conveyed to the subsequent processing station. The whole transfer process is accurate and stable by driving multiple servo motors.

[0053] Further, referring to Figures 5-6 , the bottom surface of the upper clamp plate 502 is provided as a concave surface, and the top surface of the lower clamp plate 607 is provided as a convex surface, and the convex surface and the concave surface are matched;

[0054] Preferably, the upper clamp plate 502 and the lower clamp plate 607 are made of rubber material, and the concave surface and the convex surface are matched with the curvature of the cup wall, so that when the upper clamp plate 502 and the lower clamp plate 607 clamp the cup wall, they can be attached to the inner and outer surfaces of the cup wall;

[0055] By setting the concave surface and the convex surface, it is beneficial to avoid damage to the cup wall when the upper clamp plate 502 and the lower clamp plate 607 clamp the cup wall, thereby ensuring the quality of the cup wall.

[0056] Further, referring to Figures 5-6 , the connecting block 606 is provided with a clamping assembly, the clamping assembly comprises a horizontal pressing block 611 and a second air cylinder 612, the horizontal pressing block 611 is hinged at the bottom with two identical and parallel distributed supporting plates 613, the bottom ends of the two supporting plates 613 are hinged with the connecting block 606, one end of the second air cylinder 612 is rotationally connected with the connecting block 606, and the other end of the second air cylinder 612 is rotationally connected with the side edge of one of the supporting plates 613;

[0057] Wherein, when discharging, the lower clamp plate 607 needs to rotate and drive the cup wall on the lower clamp plate 607 to rotate, and in slow state, the cup wall is still on the lower clamp plate 607 after rotating, but if the production speed needs to be improved, when the rotation speed of the lower clamp plate 607 is too fast, the cup wall is easy to separate from the lower clamp plate 607 due to excessive centrifugal force, and stable discharging cannot be realized. The horizontal pressing block 611, the connecting block 606 and the two supporting plates 613 form a four-bar linkage assembly;

[0058] In use, before discharging, start the second cylinder 612, when the second cylinder 612 contracts, pull one of the support plates 613, so that the support plate 613 rotates, the support plate 613 drives the horizontal pressing block 611 to move in a horizontal state, and finally makes the horizontal pressing block 611 extend to the surface of the lower clamp plate 607, so as to fix the edge of the cup wall on the lower clamp plate 607, and then drive the lower clamp plate 607 and the cup wall to rotate to the lower opening by starting the fourth motor 605, at this time, control the second cylinder 612 to extend, and drive the horizontal pressing block 611 to reset and release the fixation of the cup wall edge;

[0059] By setting the clamping assembly, when the production line is running at high speed, the cup wall is fixed by the horizontal pressing block 611 before discharging, so as to effectively avoid the cup wall from being thrown off when the lower clamp plate 607 rotates, ensure the stability of the discharging process, reduce the risk, and the fault tolerance is higher.

[0060] Working principle: in use, the paper sheet is wrapped on the hollow mold 3, when the hydraulic cylinder 42 contracts, the cross beam 41 and the heating pressing plate 43 are driven to move downward, the heating pressing plate 43 just presses the top plate 31 above, and the paper sheet is edge sealed to form a cup wall, after the edge sealing is completed, the hydraulic cylinder 42 drives the heating pressing plate 43 to move upward and reset, and at the same time, the first cylinder 33 is started, the first cylinder 33 operates and contracts, drives the top plate 31 to move downward to the inside of the hollow mold 3;

[0061] The second motor 510 and the electric sliding table 608 are simultaneously operated first. When the second motor 510 operates, the first synchronous wheel 511 is driven to rotate, the synchronous belt 514 is driven to rotate when the first synchronous wheel 511 rotates, the rod slider 509 is pushed to move, the slider 509 is driven to slide along the guide rail 507, the slide rail 501 and the upper clamping plate 502 on the slide rail 501 are driven to move when the slider 509 slides, and the upper clamping plate 502 is moved to above the cup wall edge sealing position until the upper clamping plate 502 is moved to above the cup wall edge sealing position. When the electric slider 509 operates, the movable seat 609 is driven to move, the frame seat 601 and the lower clamping plate 607 on the frame seat 601 are driven to move when the movable seat 609 moves, and the lower clamping plate 607 is extended to below the cup wall edge sealing position. Then the first motor 503 is operated, the bidirectional screw rod 504 is driven to rotate by the first motor 503, the two nut seats 505 are simultaneously driven to move to the middle when the bidirectional screw rod 504 rotates, the top end of the push rod 506 is driven to move when the two nut seats 505 move, and the upper clamping plate 502 is driven to move downward by the push rod 506. The upper clamping plate 502 is moved downward and the lower clamping plate 607 clamps the cup wall edge sealing position, so as to realize the fixation of the cup wall. Then the second motor 510 and the electric sliding table 608 are operated again. Similarly, the upper clamping plate 502 and the lower clamping plate 607 can be driven to move reversely at the same time, and the cup wall can be driven to move and separated from the hollow mold 3 when the upper clamping plate 502 and the lower clamping plate 607 move at the same time, so as to finally move the cup wall to the discharging station. Then the second motor 510 is operated to drive the bidirectional screw rod 504 to rotate reversely, and the upper clamping plate 502 can be driven to move upward and separate from the cup wall, so as to release the fixation of the cup wall. Finally, the fourth motor 605 and the third motor 604 are started in sequence. The fourth motor 605 is operated to drive the connecting block 606 to rotate by ninety degrees, and the lower clamping plate 607 is driven to rotate by ninety degrees, so as to move the cup wall on the lower clamping plate 607 to above the discharging port 2. The third motor 604 is operated to drive the rotating shaft 603 to rotate, and the movable plate 602 is driven to rotate, the connecting block 606 and the lower clamping plate 607 are driven to rotate when the movable plate 602 rotates. At this time, the lower clamping plate 607 is inclined after rotating, the cup wall on the lower clamping plate 607 slides along the lower clamping plate 607 and falls from the discharging port 2, so as to realize the discharging. After the discharging is completed, the third motor 604 and the fourth motor 605 are operated again to drive the lower clamping plate 607 to reset.

[0062] If the production line is operated at high speed, the second air cylinder 612 is started before discharging. When the second air cylinder 612 contracts, one of the supporting plates 613 is pulled to rotate, the horizontal pressing block 611 is driven to move in the horizontal state when the supporting plate 613 rotates, and finally the horizontal pressing block 611 is extended to the surface of the lower clamping plate 607, so as to fix the cup wall edge on the lower clamping plate 607. Then the fourth motor 605 is started to drive the lower clamping plate 607 and the cup wall to rotate to the discharging port. At this time, the second air cylinder 612 is controlled to extend, and the horizontal pressing block 611 is reset and the fixation of the cup wall edge is released.

[0063] By setting the hollow mold 3, setting the retractable top plate 31 on the mold, and then setting the upper clamp assembly 5 and the lower clamp assembly 6, the cup wall is transported by clamping the cup wall by the upper clamp assembly 5 and the lower clamp assembly 6, and then the cup wall is discharged by the lower clamp assembly 6. Compared with the existing technology of pushing the edge of the cup wall, the damage to the edge of the cup wall is avoided, and the subsequent processing is avoided, thereby improving the quality of the paper cup. In addition, since the clamping position of the upper clamp assembly 5 and the lower clamp assembly 6 is the edge sealing part of the cup wall, the edge sealing position is continuously clamped during the transportation process, which is equivalent to extending the edge sealing time, so that the glue bonding at the edge sealing part is more firm. Under the premise of not affecting the production efficiency, the edge sealing effect of the cup wall is improved, and the quality of the paper cup is further improved.

[0064] Although embodiments of the present application have been shown and described, it is to be understood that various modifications, substitutions, replacements and changes can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. An in-line shuttle feed system for a paper cup machine, characterized by: The workbench is provided with a discharging opening, and the top of the workbench is provided with a hollow mold, an edge sealing assembly, an upper clamp assembly and a lower clamp assembly; The hollow mold is fixedly installed on the workbench, and the top surface of the hollow mold is provided with a top plate capable of being retracted to the inside of the hollow mold, and the hollow mold is used for positioning when the paper cup is edge sealed; The edge sealing assembly is fixedly installed on the workbench, and is used for pressing down the paper cup to realize edge sealing. The upper clamp assembly and the lower clamp assembly are both slidably installed on the workbench, and are used for clamping the edge sealed paper cup and transferring the paper cup after cooperation. The upper clamp assembly comprises a sliding rail and an upper clamp plate at the bottom of the sliding rail, one end of the sliding rail is fixedly provided with a first motor, the output shaft of the first motor is fixedly provided with a bidirectional screw rod, both ends of the bidirectional screw rod are rotatably connected with the sliding rail, two symmetrically arranged nut seats are threadedly connected on the bidirectional screw rod, both the nut seats are slidably connected with the sliding rail, both the bottom of the nut seats are hingedly provided with a push rod, and one end of the push rod away from the nut seat is hingedly connected with the top surface of the upper clamp plate. The upper clamp assembly further comprises a guide rail, one end of the guide rail is fixedly connected with the mounting frame, the other end of the guide rail is fixedly connected with the workbench through a support, a sliding block is slidably connected on the guide rail, the sliding block is fixedly connected with the sliding rail, one end of the guide rail is fixedly provided with a second motor, the output shaft of the second motor is fixedly provided with a first synchronous wheel, the other end of the guide rail is rotatably connected with a base shaft, the base shaft is fixedly provided with a second synchronous wheel, and the second synchronous wheel and the first synchronous wheel are connected with a synchronous belt, and the sliding block is fixedly connected with the synchronous belt. The lower clamp assembly comprises a frame seat, the inside of the frame seat is provided with a movable plate, both ends of the movable plate are fixedly provided with a rotating shaft, the movable plate is rotatably connected with the frame seat through the rotating shaft, a third motor is fixedly arranged on the side wall of the frame seat, the output shaft of the third motor is fixedly connected with the rotating shaft, a fourth motor is fixedly arranged on the bottom surface of the movable plate, the output shaft of the fourth motor penetrates through the top of the movable plate and is fixedly provided with a connecting block, and one end of the connecting block is fixedly provided with a lower clamp plate.

2. A paper cup machine's in-line reciprocating feeding system as claimed in claim 1, wherein: When the paper sheet is sleeved on the hollow mold, the edge sealing assembly is operated to extrude the surface of the top plate to seal the paper sheet to form a cup wall, then the top plate is retracted to the inside of the hollow mold, the lower clamp assembly and the upper clamp assembly are operated to move to the hollow mold to clamp the sealing position and transfer the cup wall to the discharging station, finally the upper clamp assembly releases the clamping of the cup wall, and the lower clamp assembly continues to operate to discharge the cup wall.

3. A paper cup machine's in-line reciprocating feeding system as claimed in claim 1, wherein: The mounting frame is fixedly arranged on the workbench, one end of the hollow mold away from the lower clamp assembly is fixedly connected with the mounting frame, one end of the hollow mold close to the lower clamp assembly is provided with an opening, a first air cylinder is fixedly arranged in the hollow mold, and the output end of the first air cylinder is fixedly connected with the bottom of the top plate.

4. A paper cup machine's in-line reciprocating feeding system according to claim 3, characterized in that: The edge sealing assembly comprises a cross beam above the hollow mold, the cross beam is fixedly connected with the workbench through a hydraulic cylinder, and a heating press plate is fixedly arranged on the bottom of the cross beam and located above the top plate.

5. A paper cup machine's in-line reciprocating feeding system as claimed in claim 4, wherein: An electric sliding table is fixedly arranged on the bottom of the workbench, a movable seat is arranged on the electric sliding table, a strip-shaped hole is formed in the surface of the workbench, and the bottom of the frame seat penetrates through the strip-shaped hole and is fixedly connected with the movable seat. The bottom surface of the upper clamp plate is provided as a concave surface, the top surface of the lower clamp plate is provided as a convex surface, and the convex surface and the concave surface are matched.

6. A paper cup machine's in-line reciprocating feeding system as claimed in claim 5, wherein: The clamping assembly is arranged on the connecting block and comprises a horizontal pressing block and a second air cylinder. The bottom of the horizontal pressing block is hingedly connected with two identical and parallel distributed supporting plates, the bottom ends of the two supporting plates are hingedly connected with the connecting block, one end of the second air cylinder is rotatably connected with the connecting block, and the other end of the second air cylinder is rotatably connected with the side edge of one of the supporting plates.

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