A combined alternating feeding component

Abstract

The present invention discloses a combined alternating feeding assembly, comprising a track, on which a rectangular frame is movably connected, and further comprising: a plurality of straps, which are movably connected on the inner sides of each side of the rectangular frame and are used to support raw material sheets; a box body, which is rotatably arranged at the upper end of the rectangular frame, one end of which is connected to a pressure rod arranged on the upper side of the corresponding strap through a telescopic rod; a pressure assembly, which is arranged on the rectangular frame and connected to the other end of the box body and is used to apply an upward elastic driving force to this end of the box body; a linkage assembly, which is arranged at the bottom of the rectangular frame and is used to link the straps to retract when the mold and the rectangular frame are docked. The present invention sets a linkage assembly, and when the rectangular frame moves to a position docking with the mold and starts docking with the mold, the linkage assembly can be triggered to retract the straps, and the raw material sheets are then supported on the mold, and the pressure rod maintains downward pressure under the action of the elastic force applied by the pressure assembly to the box body, so as to ensure that the raw material sheets can also be clamped on the mold.

Description

Technical Field

[0001] The invention relates to the technical field of vacuum forming, in particular to a combined alternating feeding component. Background Art

[0002] Vacuum forming, often called blister forming, is a plastic processing technology. The main principle is to heat and soften a flat plastic hard sheet, then vacuum absorb it to the mold surface, and form it after cooling. It is widely used in plastic packaging, lighting, advertising, decoration and other industries. Among them, the equipment structure that provides the plastic raw material sheet to the precise work station for heating or vacuum absorption is the feeding component. The existing feeding component can basically meet the daily use needs, but there are still some shortcomings that need to be improved.

[0003] Patent document CN109822866A, published on May 31, 2019, discloses a multi-station box liner vacuum forming machine, comprising a base, the top of which is fixedly mounted with a support column, a vacuum pump, a lower mold, a heating box, and a blower. The top of the support column is fixedly connected to a top plate, the bottom of which is fixedly mounted with a cylinder and an electric telescopic rod, the piston rod of the cylinder is fixedly connected to an upper mold, which is located above the cylinder, the top of the top plate is fixedly mounted with a bidirectional motor, a rotating shaft is rotatably mounted between the base and the top plate, the bottom of the electric telescopic rod is fixedly connected to a cross plate, a support platform is fixedly connected to the rotating shaft, a conveyor belt is provided on the support platform, a drive motor is fixedly mounted on one end of the top of the cross plate, a fixed clamping plate is fixedly connected to the bottom of the cross plate, a chute is provided at the bottom of the cross plate, and a movable clamping plate is slidably mounted inside the chute. The present invention heats sheet plastic so that the sheet plastic is evenly heated, has a good heating effect, improves the quality of the box liner molding, is easy to use, and is easy to promote.

[0004] In the prior art, the plastic raw material sheet is driven by a clamping mechanism to successively enter a heating process and a blister forming process with the aid of a mold docking. In both processes, the raw material sheet must be successively fixed on the clamping mechanism and the mold, and the edge sealing is performed on the mold. However, in the above processes, the raw material sheet still has the problem of inconvenient position replacement and inability to maintain sealing. Therefore, a combined alternating feeding assembly is urgently needed to solve the above problems. Summary of the Invention

[0005] The object of the present invention is to provide a combined alternating feeding assembly to solve the above-mentioned deficiencies in the prior art.

[0006] In order to achieve the above object, the present invention provides the following technical solutions:

[0007] A combined alternating feeding assembly comprises a track on which a rectangular frame is movably connected, and further comprises: a plurality of straps movably connected on the inner sides of each side of the rectangular frame and used to support raw material sheets; a box body rotatably arranged at the upper end of the rectangular frame, one end of which is connected to a pressure rod arranged on the upper side of the corresponding strap via a telescopic rod; a pressurizing assembly arranged on the rectangular frame and connected to the other end of the box body and used to apply an upward elastic pushing force to this end of the box body; a linkage assembly arranged at the bottom of the rectangular frame and used to link the straps to contract when the mold is docked with the rectangular frame, so that the pressure rod presses the raw material sheet to fit on the mold.

[0008] Preferably, a support is provided at the upper end of the rectangular frame, and the box body is hinged on the support.

[0009] Preferably, the pressurizing component includes a lifting frame that is movably connected to the rectangular frame, a linkage frame is provided at the upper end of the lifting frame, a linkage pin movably connected to the linkage frame is fixedly provided on the side wall of the box body, and the lower end of the lifting frame is connected to a lifting plate movably provided in the rectangular frame through a first elastic member, and a driving component for driving the lifting plate to move up and down is provided on the rectangular frame.

[0010] Preferably, the drive assembly includes a drive shaft rotatably arranged in a rectangular frame, a drive sleeve is threadedly sleeved on the drive shaft, the drive sleeve is movably connected to the lifting plate through a hinged support rod, and the drive shaft is driven by a servo motor on the rectangular frame.

[0011] Preferably, the telescopic rod is telescopically movable and is linked to the rotation of the box body relative to the support. When the box body drives the telescopic rod to rotate downward, the telescopic rod extends, and vice versa.

[0012] Preferably, a fixed gear fixedly connected to the support is rotatably provided in the box body, a rotary sleeve is rotatably provided in the box body, a movable gear meshing with the fixed gear is coaxially fixedly connected to the outer side of the rotary sleeve, and a rotary column is coaxially fixedly connected to one end of the telescopic rod extending into the box body, and the rotary column is spirally connected to the rotary sleeve.

[0013] Preferably, the outer wall of the rotary column is provided with a sliding protrusion, and the inner wall of the rotary sleeve is provided with a spiral groove matching the sliding protrusion.

[0014] Preferably, a receiving groove matching the strap is formed on the inner wall of the rectangular frame, and a second elastic member that hinders the strap from moving is provided inside the receiving groove.

[0015] Preferably, the linkage assembly includes a lifting block that is movable in lifting within the rectangular frame, the lifting block is provided with an inclined slide groove, a sliding rod that is slidably connected to the inclined slide groove is fixedly provided on the strap, and a top column that slides through the bottom surface of the rectangular frame is fixedly provided at the lower end of the lifting block.

[0016] Preferably, the protruding end of the butt plate is configured to be shovel-shaped, and the bottom of the pressure rod is configured to be arc-shaped.

[0017] In the above technical solution, the beneficial effects of the present invention are:

[0018] The combined alternating feeding assembly is provided with a linkage assembly. When the straps are extended, the raw material sheet is supported on the straps in four directions and clamped on the upper side by a pressure rod. Thus, the rectangular frame can stably carry the raw material sheet for the heating process. Afterwards, the rectangular frame moves to a position where it docks with the mold and begins to dock with the mold, thereby triggering the linkage assembly to shrink the straps, and the raw material sheet is then switched to the mold for support. Under the action of the elastic force applied by the pressure assembly to the box body, the pressure rod maintains downward pressure to ensure that the raw material sheet can also be clamped on the mold. Thus, the clamping and fixing of the raw material sheet after the replacement and the sealing effect are guaranteed, thereby improving the practicality of the device.

[0019] It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

[0020] This application document provides an overview of various implementations or examples of the technology described in this disclosure, and is not a comprehensive disclosure of the full scope or all features of the disclosed technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments described in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0022] Figure 1 A schematic diagram of the overall structure provided by an embodiment of the present invention;

[0023] Figure 2 A schematic diagram of a rectangular frame structure provided by an embodiment of the present invention;

[0024] Figure 3 The embodiment of the present invention provides Figure 2 Schematic diagram of the enlarged structure at A in the middle;

[0025] Figure 4 A schematic diagram of the internal structure of a rectangular frame provided by an embodiment of the present invention;

[0026] Figure 5 The embodiment of the present invention provides Figure 4 Schematic diagram of the enlarged structure at B in the middle;

[0027] Figure 6 A schematic diagram of a front cross-sectional structure provided by an embodiment of the present invention;

[0028] Figure 7 The embodiment of the present invention provides Figure 6 Schematic diagram of the enlarged structure at C in the middle;

[0029] Figure 8 A schematic diagram of a partial internal structure of a box body provided in an embodiment of the present invention;

[0030] Figure 9 This is a schematic diagram of the internal cross-sectional structure of the side of a rectangular frame provided by an embodiment of the present invention.

[0031] Description of reference numerals:

[0032] 1. Track; 2. Rectangular frame; 3. Strap; 4. Box body; 5. Telescopic rod; 6. Pressure rod; 7. Support; 8. Lifting frame; 9. Linkage frame; 10. Linkage pin; 11. First elastic member; 12. Lifting plate; 13. Drive shaft; 14. Drive sleeve; 15. Support rod; 16. Fixed gear; 17. Rotary sleeve; 18. Moving gear; 19. Rotary column; 20. Sliding cam; 21. Spiral groove; 22. Storage groove; 23. Second elastic member; 24. Lifting block; 25. Inclined slide groove; 26. Sliding rod; 27. Top column. DETAILED DESCRIPTION

[0033] To make the purpose, technical solutions, and advantages of the embodiments of the present disclosure more clear, the technical solutions of the embodiments of the present disclosure will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, not all of the embodiments. Based on the described embodiments of the present disclosure, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present disclosure.

[0034] See also Figure 1-9 The embodiment of the present invention provides a combined alternating feeding assembly, comprising a track 1, on which a rectangular frame 2 is movably connected, and further comprising: a plurality of straps 3, which are movably connected to the inner sides of each side of the rectangular frame 2 and are used to support the raw material sheet; a box body 4, which is rotatably arranged at the upper end of the rectangular frame 2, and one end of which is connected to a pressure rod 6 arranged on the upper side of the corresponding strap 3 through a telescopic rod 5; a pressurizing assembly, which is arranged on the rectangular frame 2 and connected to the other end of the box body 4 and is used to apply an upward elastic pushing force to this end of the box body 4; a linkage assembly, which is arranged at the bottom of the rectangular frame 2 and is used to link the strap 3 to contract when the mold is docked with the rectangular frame 2, so that the pressure rod 6 presses the raw material sheet to fit on the mold.

[0035] Specifically, the track 1 is installed in the blister molding equipment, spanning the loading position, molding position and heating position; the track 1 is a chain structure, including two horizontally opposite parts, and the rectangular frame 2 is connected to the track 1 by suspension and is driven to move under the chain structure along the extension direction of the track 1, specifically: under the control of the servo system, the rectangular frame 2 is driven to move from the loading position to the heating position for heating, then move to the molding position for molding, and finally return to the loading position; the track 1 is set to two groups, distributed up and down, and accordingly, the rectangular frame 2 is set to two, respectively connected to the two groups of tracks 1; under the control of the servo system, the two rectangular frames 2 move alternately to ensure the continuous and effective operation of the heating structure, avoid repeated heating and cooling operations, avoid heating gaps, and waste heat energy. A strap 3 is provided on each of the four sides of the rectangular frame 2, and the strap 3 extends from the inner side of the rectangular frame 2 to form an overlapping point. The straps 3 on the four sides of the rectangular frame 2 can stably overlap rectangular raw material sheets of matching sizes; a support 7 is provided at the upper end of the rectangular frame 2, and the box body 4 is hinged on the support 7; there are preferably 3-5 box bodies 4, which are evenly distributed along the length direction on one side of the rectangular frame 2; each box body 4 is connected to the same pressure rod 6 through a telescopic rod 5; the pressure component applies an upward elastic thrust to the end of the box body 4 away from the pressure rod 6 to achieve a lever effect, so that one end of the pressure rod 6 is subjected to downward pressure, and then cooperates with the extended strap 3 to clamp and fix the raw material sheet; the linkage component triggers the linkage strap 3 to retract and move when the rectangular frame 2 is in the forming position and docks with the mold, and the mold immediately replaces the strap 3 to support the raw material sheet. When the cam 3 is in the working state, the cam 3 is in the working state, and the cam 3 is in the working state, the cam 3 is in the working state, and the cam 3 is in the working state, so that the cam 3 is in the working state, and the cam 3 is in the working state, and the cam 3 is in the working state, so that the cam 3 is in the working state, and the cam 3 is in the working state, so that the cam 3 is in the working state, and the cam 3 is in the working state, so that the cam 3 is in the working state, and the cam 3 is in the working state, so that the cam 3 is in the working state, and the cam 3 is in the working state, so that the cam 3 is in the working state, and the cam 3 is in the working state, so that the cam 3 is in the working state, and the cam 3 is in the working state, so that the cam 3 is in the working state, and the cam 3 is in the working state, so that the cam 3 is in the working state, and the cam 3 is in the working state, so that the cam 3 is in the working state, and the cam 3 is in the working state, so that the cam 3 is in the working state, and the cam 3 is in the working state, so that the cam 3 is in the working state, and the cam 3 is in the working state, so that the cam 3 is in the working state,

[0036] Compared with the prior art, the combined alternating feeding assembly proposed in the embodiment of the present invention is provided with a linkage assembly. When the strap 3 is extended, the raw material sheet is supported on the strap 3 in four directions, and the upper side is clamped by the pressure rod 6. Thus, the rectangular frame 2 can stably carry the raw material sheet for the heating process. Afterwards, the rectangular frame 2 moves to the position docking with the mold and starts to dock with the mold, thereby triggering the linkage assembly to shrink the strap 3, and the raw material sheet is then switched to the mold for support. Under the action of the elastic force applied by the pressure assembly to the box body 4, the pressure rod 6 maintains downward pressure to ensure that the raw material sheet can also be clamped on the mold. Thus, the clamping and fixing of the raw material sheet after the replacement and the sealing effect are guaranteed, thereby improving the practicality of the device.

[0037] As the preferred technical solution of this embodiment, the pressurizing component includes a lifting frame 8 movably connected to the rectangular frame 2, a linkage frame 9 is provided on the upper end of the lifting frame 8, and a linkage pin 10 movably connected to the linkage frame 9 is fixedly provided on the side wall of the box body 4. The lower end of the lifting frame 8 is connected to a lifting plate 12 movably arranged in the rectangular frame 2 through a first elastic member 11, and a driving component for driving the lifting plate 12 to rise and fall is provided on the rectangular frame 2. Specifically, the lifting frame 8 is U-shaped, the lower end is arranged inside the rectangular frame 2, and the upper end slides through the top surface of the rectangular frame 2 and extends to the side of the box body 4; the linkage pin 10 is axially parallel to the rotating shaft of the box body 4; the linkage pin 10 slides in the linkage frame 9 to offset the horizontal movement component generated when the linkage pin 10 drives the box body 4 to rotate, thereby realizing the lifting and lowering of the linkage frame 9 and the rotation of the box body 4; the rectangular frame 2 is provided with a lifting plate 12 movably arranged in the rectangular frame 2 The plate 12 moves and limits the lifting plate 12 to a movable groove for lifting and lowering, and the lower end of the lifting frame 8 is also movably connected in the movable groove; the first elastic member 11 is preferably a spring. The setting of the first elastic member 11 can keep the lifting frame 8 rising and falling synchronously with the lifting plate 12 without external force, and after the pressure rod 6 cooperates with the strap 3 to clamp the raw material sheet, the lifting plate 12 can continue to rise for a certain height, so that the first elastic member 11 is compressed and stores elastic potential energy, thereby enabling the pressure rod 6 to generate sufficient downward force to cooperate with the strap 3 to firmly clamp the raw material sheet; when the pressure rod 6 contacts the strap 3, a gap is set between the height of the lower end of the lifting frame 8 in the movable groove and the top surface of the movable groove; the driving assembly drives the lifting plate 12 to rise and fall to synchronously drive the box body 4 to rotate, and when the pressure rod 6 abuts against the strap 3, the lifting frame 8 and the lifting plate 12 are brought close by compressing the first elastic member 11.

[0038] As a further preferred technical solution of this embodiment, the driving assembly includes a driving shaft 13 rotatably arranged in the rectangular frame 2, a driving sleeve 14 is threadedly sleeved on the driving shaft 13, and the driving sleeve 14 is movably connected to the lifting plate 12 through a hinged support rod 15, and the driving shaft 13 is driven by a servo motor on the rectangular frame 2. Specifically, the driving shaft 13 is arranged on the lower side of the lifting plate 12, and a driving shaft 13 is correspondingly arranged inside each side of the rectangular frame 2. The driving shafts 13 are connected by bevel gear transmission to achieve synchronization, and the transmission direction is set to enable the synchronous lifting and lowering of each pressure rod 6; the surface wall of the driving shaft 13 is provided with a thread, and the driving shaft 13 rotates to produce a threaded feeding effect with the driving sleeve 14, so that the driving sleeve 14 moves axially along the driving shaft 13, and then drives the lower end of the support rod 15 to move horizontally relative to its upper end, so that the inclination angle of the support rod 15 changes, which can drive the lifting plate 12 to rise and fall; multiple groups of driving sleeves 14 and support rods 15 are provided on the same driving shaft 13 to ensure that the lifting plate 12 is driven smoothly; the servo motor is controlled and operated by the servo system.

[0039] In another embodiment proposed by the present invention, the telescopic rod 5 is telescopically movable and is linked to the rotation of the box body 4 relative to the support 7. When the box body 4 drives the telescopic rod 5 to rotate downward, the telescopic rod 5 extends, and vice versa. Specifically, the rotation range of the box body 4 is preferably 40°-50°; at both ends of the rotation range of the box body 4, one end makes the telescopic rod 5 tilt downward, and the other end makes the telescopic rod 5 close to the horizontal direction; when the telescopic rod 5 is close to the horizontal direction, the telescopic rod 5 is retracted to the shortest, at this time, the pressure rod 6 is driven to avoid the upper side of the extended strap 3, thereby facilitating the placement of the raw material sheet on top of the strap 3; after the raw material sheet is placed, the box body 4 drives the telescopic rod 5 to rotate downward again, and at the same time links the telescopic rod 5 to extend, so that the pressure rod 6 is smoothly pressed on top of the raw material sheet, and cooperates with the strap 3 to complete the clamping of the raw material sheet.

[0040] As a preferred technical solution of this embodiment, a fixed gear 16 fixedly connected to the support 7 is rotatably provided in the box body 4, a rotary sleeve 17 is rotatably provided in the box body 4, and a movable gear 18 meshing with the fixed gear 16 is coaxially fixedly connected to the outer side of the rotary sleeve 17. One end of the telescopic rod 5 extending into the box body 4 is coaxially fixedly connected to a rotary column 19, and the rotary column 19 is spirally connected to the rotary sleeve 17. Specifically, the fixed gear 16 is provided in the box body 4, and the rotating shaft of the fixed gear 16 rotates through the side wall of the box body 4 to be fixedly connected to the support 7. The fixed gear 16 is fixed relative to the support 7, and the box body 4 rotates relative to the fixed gear 16; The axial direction of the sleeve 17 is perpendicular to the axial direction of the fixed gear 16 and is collinear with the axial direction of the telescopic rod 5; the telescopic rod 5 is preferably a polygonal prism or other shape that can extend out of the box body 4 without rotating relative to the box body 4; the movable gear 18 is kept in meshing with the fixed gear 16, so that when the box body 4 rotates relative to the fixed gear 16, the movable gear 18 engages the transmission fixed gear 16, and the rotary sleeve 17 rotates relative to the telescopic rod 5; the rotary column 19 is kept spirally connected in the rotary sleeve 17, so that when the rotary sleeve 17 rotates relative to the telescopic rod 5, the rotary column 19 and the rotary sleeve 17 are spirally driven to enable the telescopic rod 5 to achieve the axial telescopic movement function.

[0041] As a preferred technical solution of this embodiment, the outer wall of the rotary column 19 is provided with a sliding protrusion 20, and the inner wall of the rotary sleeve 17 is provided with a spiral groove 21 matching the sliding protrusion 20. Specifically, when the rotary sleeve 17 rotates relative to the rotary column 19, the sliding protrusion 20 slides in the spiral groove 21. As a result, the rotary column 19 moves axially relative to the rotary sleeve 17. The spiral direction of the spiral groove 21 is specifically set to: when the box body 4 drives the telescopic rod 5 to rotate downward, the rotary column 19 drives the telescopic rod 5 to extend outward from the box body 4, and when the box body 4 drives the telescopic rod 5 to rotate upward, the rotary column 19 drives the telescopic rod 5 to shorten into the box body 4. The telescopic function of the telescopic rod 5 implemented in the above embodiment, in actual use, on the one hand, when the telescopic rod 5 is shortened according to the above principle, it can drive the pressure rod 6 to avoid the upper side of the extended strap 3, thereby facilitating the placement of the raw material sheet on the strap 3; on the other hand, when the rectangular frame 2 is docked with the mold, the linkage assembly and the strap 3 are linked to contract, so that the raw material sheet is switched to be supported on the mold, the raw material sheet drops to a certain height, and the pressure rod 6 also drops to a certain height along with the raw material sheet. Correspondingly, the box body 4 continues to drive the telescopic rod 5 to rotate downward by a certain angle, and will also link the telescopic rod 5 to continue to extend to compensate for the descent of the pressure rod 6, thereby causing the first elastic member 11 to release very little elastic potential energy, thereby maintaining the effective downward pressure of the pressure rod 6, ensuring continuous and stable clamping of the raw material sheet.

[0042] As a preferred technical solution of this embodiment, a storage groove 22 matching the strap 3 is provided on the inner wall of the rectangular frame 2, and a second elastic member 23 that hinders the movement of the strap 3 is provided on the inner side of the storage groove 22. Specifically, the storage groove 22 is arranged horizontally, and the strap 3 moves horizontally along the storage groove 22; the second elastic member 23 can preferably be a spring, and the second elastic member 23 is arranged to keep pushing the strap 3 so that the strap 3 remains extended on the inner side of the rectangular frame 2 to form a support point; when the linkage component is triggered, the strap 3 can be driven to contract to resist the elastic force of the second elastic member 23.

[0043] As the preferred technical solution of this embodiment, the linkage assembly includes a lifting block 24 that is arranged for lifting and lowering activities in the rectangular frame 2, an inclined slide 25 is provided on the lifting block 24, a sliding rod 26 that is slidably connected to the inclined slide 25 is fixedly provided on the strap 3, and a top column 27 that slides through the bottom surface of the rectangular frame 2 is fixedly provided at the lower end of the lifting block 24. Specifically, the lifting block 24 performs lifting and lowering activities in the rectangular frame 2; the upper end of the inclined slide 25 is arranged closer to the inner side of the rectangular frame 2. Therefore, when the lifting block 24 rises, the inclined slide 25 acts with the sliding rod 26 to drive the strap 3 to retract into the storage groove 22, and conversely, the strap 3 extends outward from the storage groove 22. The edge shape of the mold is preferably stepped. When it corresponds to the rectangular frame, it can be driven up by the equipment, and its edge can just correspond to the lower side of the top column 27, and then push the top column 27 during the rising process, thereby linking the strap 3 to shrink. Further, after the edge of the mold abuts against the bottom surface of the rectangular frame 2 and cannot continue to rise to push the top column 27, the height of the part corresponding to the inner side of the rectangular frame 2 just corresponds to the lower side of the height of the strap 3, and then it can connect and support the raw material sheet that falls after the strap 3 shrinks, and replace the strap 3 to cooperate with the pressure rod 6 to achieve clamping and fixation of the raw material sheet.

[0044] After the raw material sheet is heated, it is easy to adhere to the pressing rod 6 that maintains the extrusion. To solve this problem, the following embodiment is proposed.

[0045] In another embodiment of the present invention, the protruding end of the strap 3 is set to a shovel shape, and the bottom of the pressure rod 6 is set to be arc-shaped. Specifically, after the strap 3 is contracted, the pressure rod 6 drops to a certain height to abut against the mold. At this time, one end of the shovel shape of the strap 3 corresponds to the side of the pressure rod 6; after the raw material sheet on the mold is vacuum-formed, the mold drops relative to the rectangular frame 2, and the elastic potential energy of the second elastic member 23 is released, pushing the strap 3 to extend out of the storage groove 22 again, that is, the strap 3 extends into the inner side of the rectangular frame 2 again. At this time, the pressure rod 6 The height at which it is located is such that it corresponds to the side of the strap 3, and the strap 3 uses the shovel-shaped end to form a wedge-shaped extrusion fit with the pressure rod 6, that is, the shovel-shaped end of the strap 3 is squeezed and moved along the bottom surface of the pressure rod 6, so that the pressure rod 6 slowly rises to the upper surface of the strap 3. During this process, the strap 3 can help separate the edge of the raw material sheet from the pressure rod 6, avoiding adhesion between the two, ensuring that the formed raw material sheet is smoothly separated from the rectangular frame 2, and follows the mold to realize discharge, and the rectangular frame 2 can subsequently directly receive another new raw material sheet, facilitating continuous production.

[0046] The above description is merely illustrative of certain exemplary embodiments of the present invention. It goes without saying that those skilled in the art will be able to modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the claims.

Claims

1. A combined alternating feeding assembly, comprising a track (1), a rectangular frame (2) movably connected to the track (1), characterized in that: Also includes: A plurality of straps (3) are provided and movably connected to the inner sides of each side of the rectangular frame (2) for supporting the raw material sheet; The box body (4) is rotatably arranged on the upper end of the rectangular frame (2), and one end of the box body is connected to a pressure rod (6) arranged on the upper side of the corresponding strap (3) through a telescopic rod (5); A pressurizing assembly is arranged on the rectangular frame (2), connected to the other end of the box body (4) and used to apply an upward elastic pushing force to the other end of the box body (4); A linkage assembly is provided at the bottom of the rectangular frame (2) and is used for causing the linkage plate (3) to contract when the mold and the rectangular frame (2) are docked, so that the pressure rod (6) presses the raw material sheet to fit on the mold; The inner wall of the rectangular frame (2) is provided with a receiving groove (22) matching the strap (3), and the inner side of the receiving groove (22) is provided with a second elastic member (23) that hinders the movement of the strap (3); The linkage assembly comprises a lifting block (24) that is movable and can be lifted and lowered in the rectangular frame (2); an inclined slide groove (25) is provided on the lifting block (24); a sliding rod (26) that is slidably connected to the inclined slide groove (25) is fixedly provided on the strap (3); and a top column (27) that slides through the bottom surface of the rectangular frame (2) is fixedly provided at the lower end of the lifting block (24).

2. The combined alternating feeding assembly according to claim 1, characterized in that: A support (7) is provided at the upper end of the rectangular frame (2), and the box body (4) is hinged on the support (7).

3. The combined alternating feeding assembly according to claim 1, characterized in that: The pressurizing component comprises a lifting frame (8) movably connected to the rectangular frame (2); a linkage frame (9) is provided at the upper end of the lifting frame (8); a linkage pin (10) movably connected to the linkage frame (9) is fixedly provided on the side wall of the box body (4); a lifting plate (12) movably provided in the rectangular frame (2) is connected at the lower end of the lifting frame (8) through a first elastic member (11); and a driving component for driving the lifting plate (12) to move up and down is provided on the rectangular frame (2).

4. The combined alternating feeding assembly according to claim 3, characterized in that: The driving assembly comprises a driving shaft (13) rotatably arranged in a rectangular frame (2); a driving sleeve (14) is threadedly sleeved on the driving shaft (13); the driving sleeve (14) is movably connected to the lifting plate (12) via a hinged support rod (15); and the driving shaft (13) is driven by a servo motor on the rectangular frame (2).

5. The combined alternating feeding assembly according to claim 2, characterized in that: The telescopic rod (5) is telescopically movable and is linked to the rotation of the box body (4) relative to the support (7). When the box body (4) drives the telescopic rod (5) to rotate downward, the telescopic rod (5) extends, and vice versa.

6. The combined alternating feeding assembly according to claim 5, characterized in that: A fixed gear (16) fixedly connected to the support (7) is rotatably provided in the box body (4), a rotary sleeve (17) is rotatably provided in the box body (4), a movable gear (18) meshing with the fixed gear (16) is coaxially fixedly connected to the outer side of the rotary sleeve (17), and a rotary column (19) is coaxially fixedly connected to one end of the telescopic rod (5) extending into the box body (4), and the rotary column (19) is connected to the rotary sleeve (17) by a spiral transmission.

7. The combined alternating feeding assembly according to claim 6, characterized in that: The outer wall of the rotary column (19) is provided with a sliding protrusion (20), and the inner wall of the rotary sleeve (17) is provided with a spiral groove (21) matching the sliding protrusion (20).

8. The combined alternating feeding assembly according to claim 1, characterized in that: The protruding end of the buttress plate (3) is configured to be shovel-shaped, and the bottom of the pressure rod (6) is configured to be arc-shaped.

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