Double-preheating device of paper-aluminum packaging machine

Abstract

The utility model is applicable to the technical field of packaging machines, and provides a double-preheating device of a paper aluminum packaging machine, which comprises a connecting plate, a mounting plate is fixedly mounted on the connecting plate, and a turnover mechanism, a first preheating tool, a second preheating tool and a winding mechanism are sequentially arranged on the mounting plate. A leveling assembly is further movably connected to the portion, on one side of the first preheating tool, of the mounting plate, a gap for a roll material to pass through is reserved between the leveling assembly and the first preheating tool, a heat sealing roller is further movably mounted on the portion, on one side of the winding mechanism, of the mounting plate, and a vacuum adsorption plate is additionally arranged, so that paper aluminum passing through the portion between the first preheating tool and the adsorption plate can be effectively flattened; the secondary preheating device (the second preheating tool) is additionally arranged after the first preheating tool conducts preliminary preheating, the preheated paper aluminum is prevented from being cooled in advance before heat sealing, and the problems that the sealing effect is poor, and the paper aluminum is discolored and not prone to being torn can be effectively solved.

Description

Technical Field

[0001] This utility model belongs to the field of packaging machine technology, and in particular relates to a dual preheating device for a paper-aluminum packaging machine. Background Technology

[0002] Existing packaging methods typically use a combination of paper and aluminum or cold aluminum. Conventional single preheating devices are prone to uneven preheating. Low heat sealing temperatures result in uneven blister packs and poor sealing, while high heat sealing temperatures cause discoloration of the paper and aluminum surfaces and make them difficult to tear, seriously affecting the product's appearance and sealing quality.

[0003] In addition, the unwinding mechanism in the existing equipment requires the machine to be stopped and waited for a new roll after each unwinding, which results in a long downtime and affects work efficiency. Summary of the Invention

[0004] This utility model provides a dual preheating device for a paper-aluminum packaging machine, which aims to solve the technical problems mentioned in the background art.

[0005] This utility model is implemented as follows: a dual preheating device for a paper-aluminum packaging machine, comprising: a connecting plate, on which an mounting plate is fixedly installed; a flipping mechanism, a first preheating fixture, a second preheating fixture, and a winding mechanism are sequentially arranged on the mounting plate; wherein, the flipping mechanism and the mounting plate are rotatably connected, and two rotating components are symmetrically rotatably connected on the flipping mechanism; each rotating component is detachably fixedly installed with an unwinding component; a limiting component is movably installed on the mounting plate near the first preheating fixture, and the limiting component is detachably connected to one of the unwinding components; a leveling component is movably connected to the mounting plate on the side of the first preheating fixture, and a gap is reserved between the leveling component and the first preheating fixture for the roll material to pass through; a heat-sealing roller is movably installed on the mounting plate on the side of the winding mechanism; in this solution, the addition of a vacuum adsorption plate can effectively flatten the paper-aluminum passing between the first preheating fixture and the adsorption plate, reducing the occurrence of uneven preheating.

[0006] In addition, after the initial preheating by the first preheating fixture, a secondary preheating device (second preheating fixture) is added to prevent the preheated paper and aluminum from cooling down before heat sealing, which can effectively solve the problems of poor sealing effect, discoloration of paper and aluminum, and difficulty in tearing.

[0007] In addition, after the flip plate is flipped, the unwinding roller on the other end of the flip plate can be disassembled manually without affecting the unwinding of the paper and aluminum, so as to replace it with a new unwinding roller wound with paper and aluminum.

[0008] Preferably, the leveling assembly includes: a mounting base fixedly mounted on the mounting plate and located on one side of the first preheating fixture; a vacuum generator is provided on one side of the mounting base; an adsorption plate is provided between the first preheating fixture and the mounting base; a rectifier box is fixedly connected to the side wall of the adsorption plate near the mounting base; multiple guide holes communicating with the inner cavity of the rectifier box are opened on the side wall of the adsorption plate near the first preheating fixture; the inner cavity of the rectifier box is connected to the vacuum generator through a connecting pipe. In this scheme, when the paper aluminum is released from the unwinding roller, it will pass between the first preheating fixture and the adsorption plate. At this time, the vacuum generator works, using the guide holes to evacuate the air around the adsorption plate near the paper aluminum, thereby creating a vacuum state so that the paper aluminum adheres and flattens on the surface of the adsorption plate, effectively ensuring that the paper aluminum is heated evenly.

[0009] Preferably, a first electric actuator is also fixedly mounted on the mounting base, and the output end of the first electric actuator is fixedly connected to the side wall of the rectifier box; in this scheme, the distance between the adsorption plate and the first preheating fixture is adjusted by extending and retracting the output end of the first electric actuator, thereby meeting the requirements of this device to process paper aluminum of different sizes.

[0010] Preferably, the flipping mechanism includes: a flipping motor fixedly mounted on the other side of the mounting plate; a flipping plate fixedly mounted on the output end of the flipping motor; and a rotating assembly having: a rotating hole opened on the end of the flipping plate; a limiting ring fixedly connected to the inner peripheral wall of the rotating hole; a rotating rod rotatably disposed on the inner side of the limiting ring; and limiting rings provided on both sides of the limiting ring, the limiting rings being fixedly connected to the outer peripheral wall of the rotating rod. The rotation of the flipping plate at the output end of the flipping motor controls the angle flipping, thereby rotating the unwinding assemblies at both ends of the flipping plate sequentially to the side closer to the first preheating fixture, facilitating the unwinding of paper and aluminum on the unwinding roller. Simultaneously, the unwinding assembly can be manually disassembled at the end of the flipping plate away from the first preheating fixture, thereby replacing the paper and aluminum unwinding roller.

[0011] Preferably, the unwinding assembly includes: an unwinding roller, one end of which has a receiving groove for accommodating the rotating rod; at least one recessed groove is formed on the outer wall of the rotating rod; a guide rod is vertically fixed to the inner bottom wall of the recessed groove; a protrusion is slidably connected within the recessed groove; a receiving groove for accommodating the guide rod is formed on the inner bottom wall of the protrusion; a return spring is disposed at the bottom of the protrusion; the return spring is sleeved on the outside of the guide rod; and a through groove is formed on the outer wall of the unwinding roller corresponding to the recessed groove. In this scheme, during the assembly of the unwinding assembly, the unwinding roller wrapped with paper and aluminum is manually (mechanically) raised to the position of the rotating rod, and then driven to move towards the rotating rod so that the rotating rod is inserted into the receiving groove. Next, the protrusion is pressed into the recessed groove, at which point the return spring is compressed. As the unwinding roller continues to move until the rotating rod is fully inserted into the receiving groove, the position of the protrusion is aligned with the through groove. After the protrusion is no longer restricted by the inner peripheral wall of the receiving groove, the return spring rebounds and drives the protrusion to pass through the through groove, thus using the protrusion to limit the unwinding roller.

[0012] Preferably, the limiting component includes: a connecting seat fixedly connected to the mounting plate on one side of the flipping plate; a second electric push rod fixedly connected to the side wall of the connecting seat away from the flipping plate; a limiting seat fixedly connected to the output end of the second electric push rod; a limiting groove for accommodating the unwinding roller opened on the side wall of the limiting seat facing the flipping plate; and an annular blocking ring fixedly connected to the outer wall of the end of the unwinding roller near the flipping plate. In this scheme, when the flipping plate flips to a certain angle, the unwinding component (unwinding roller) at one end of the flipping plate is aligned with the limiting groove. At this time, the output end of the flipping motor stops rotating, and the output end of the second electric push rod extends to push the limiting seat closer to the unwinding roller. The limiting seat is locked on the outside of the unwinding roller through the limiting groove. At the same time, the limiting seat is between the protrusion and the annular blocking ring, which performs secondary limiting on the lateral movement of the unwinding roller to prevent the unwinding roller from separating from the rotating rod after high-speed rotation.

[0013] Compared with the prior art, the beneficial effects of this utility model are: This utility model provides a dual preheating device for a paper-aluminum packaging machine.

[0014] 1. Adding a vacuum adsorption plate can effectively flatten the paper and aluminum passing between the first preheating fixture and the adsorption plate, reducing the occurrence of uneven preheating. After the first preheating fixture performs preliminary preheating, a secondary preheating device (second preheating fixture) is added to prevent the preheated paper and aluminum from cooling down before heat sealing, which can effectively solve the problems of poor sealing effect, paper and aluminum discoloration, and difficulty in tearing.

[0015] After the flip plate is flipped, the unwinding roller on the other end of the flip plate can be disassembled manually without affecting the unwinding of the paper and aluminum, so as to replace it with a new unwinding roller wound with paper and aluminum. Attached Figure Description

[0016] Figure 1This is a schematic diagram of the present invention;

[0017] Figure 2 This is a partial structural diagram of the present invention;

[0018] Figure 3 This is a partial structural cross-sectional view of the present invention;

[0019] Figure 4 This utility model Figure 3 Enlarged view of the structure at point A in the middle;

[0020] In the picture:

[0021] 1. Connecting plate; 11. Mounting plate; 12. Tilting mechanism; 121. Tilting motor; 122. Tilting plate; 13. First preheating fixture; 14. Second preheating fixture; 15. Winding mechanism; 16. Heat sealing roller;

[0022] 2. Rotating assembly; 21. Rotating hole; 22. Limiting ring; 23. Rotating rod; 24. Limiting ring;

[0023] 3. Unwinding assembly; 31. Unwinding roller; 311. Receiving groove; 32. Settling groove; 33. Guide rod; 34. Protrusion; 341. Receiving groove; 35. Return spring; 36. Through groove;

[0024] 4. Limiting assembly; 41. Connecting seat; 42. Second electric actuator; 43. Limiting seat; 431. Limiting groove; 44. Annular blocking ring;

[0025] 5. Leveling assembly; 51. Mounting base; 52. Vacuum generator; 53. Adsorption plate; 531. Flow guide hole; 54. Rectifier box; 55. Connecting pipe; 56. First electric actuator. Detailed Implementation

[0026] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments.

[0027] The components of the present invention embodiments described and shown in the accompanying drawings can typically be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention.

[0028] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0029] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0030] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0031] Please see Figure 1-4 This utility model provides a technical solution: a double preheating device for a paper-aluminum packaging machine, comprising: a connecting plate 1, an mounting plate 11 fixedly installed on the connecting plate 1, a flipping mechanism 12, a first preheating fixture 13, a second preheating fixture 14 and a winding mechanism 15 arranged sequentially on the mounting plate 11, wherein the flipping mechanism 12 and the mounting plate 11 are rotatably connected, and two rotating components 2 are symmetrically rotatably connected on the flipping mechanism 12, and each rotating component 2 is detachably fixedly installed with an unwinding component 3, a limiting component 4 is also movably installed on the mounting plate 11 near the first preheating fixture 13, the limiting component 4 and one of the unwinding components 3 are detachably connected, a leveling component 5 is also movably connected on the mounting plate 11 on the side of the first preheating fixture 13, a gap is reserved between the leveling component 5 and the first preheating fixture 13 for the roll material to pass through, and a heat sealing roller 16 is also movably installed on the mounting plate 11 on the side of the winding mechanism 15.

[0032] Specifically, both the first preheating fixture 13 and the second preheating fixture 14 are preheating plates. The preheating plates are electrically connected to an external power source. When the preheating plates are powered on, they generate heat to preheat the paper and aluminum passing through.

[0033] In this device, the winding mechanism 15 is a winding roller, which is rotatably connected to the winding support, while the heat sealing roller 16 is rotatably connected to the rotating support. Cold aluminum is wound around the outside of the heat sealing roller 16.

[0034] Furthermore, the leveling component 5 includes: a mounting base 51 fixedly mounted on the mounting plate 11 and located on one side of the first preheating fixture 13; a vacuum generator 52 is provided on one side of the mounting base 51; an adsorption plate 53 is provided between the first preheating fixture 13 and the mounting base 51; a rectifier box 54 is fixedly connected to the side wall of the adsorption plate 53 near the mounting base 51; a plurality of guide holes 531 communicating with the inner cavity of the rectifier box 54 are opened on the side wall of the adsorption plate 53 near the first preheating fixture 13; and the inner cavity of the rectifier box 54 is connected to the vacuum generator 52 through a connecting pipe 55.

[0035] Specifically, in order to prevent the rectifier box 54 from separating from the vacuum generator 52 when it moves, the connecting pipe 55 is a retractable flexible hose structure.

[0036] Meanwhile, to ensure the stability of the rectifier box 54 when it moves horizontally, at least two guide blocks are fixedly installed on the side wall of the rectifier box 54 near the mounting plate 11, and a guide groove is provided on the mounting plate 11. The guide groove is horizontally set, and one end of it extends toward the first preheating fixture 13. The guide block is slidably connected in the guide groove.

[0037] Furthermore, a first electric actuator 56 is also fixedly mounted on the mounting base 51, and the output end of the first electric actuator 56 is fixedly connected to the side wall of the rectifier box 54.

[0038] Furthermore, the flipping mechanism 12 includes: a flipping motor 121 fixedly installed on the other side of the mounting plate 11, a flipping plate 122 fixedly installed on the output end of the flipping motor 121, and a rotating assembly 2 having: a rotating hole 21 opened on the end of the flipping plate 122, a limiting ring 22 fixedly connected around the inner peripheral wall of the rotating hole 21, a rotating rod 23 rotatably arranged on the inner side of the limiting ring 22, and limiting rings 24 provided on both sides of the limiting ring 22, the limiting rings 24 being fixedly connected to the outer peripheral wall of the rotating rod 23.

[0039] Specifically, in order to reduce the friction between the rotating rod 23 and the inner ring of the limiting ring 22, multiple balls are distributed at equal angles around the inner peripheral wall of the limiting ring 22, and the outer peripheral wall of the rotating rod 23 and the multiple balls are in contact with each other.

[0040] Furthermore, the unwinding assembly 3 includes: an unwinding roller 31, one end of which is provided with a receiving groove 311 for accommodating a rotating rod 23, at least one recess 32 is provided on the outer wall of the rotating rod 23, a guide rod 33 is vertically fixed to the inner bottom wall of the recess 32, a protrusion 34 is slidably connected in the recess 32, a receiving groove 341 for accommodating the guide rod 33 is provided on the inner bottom wall of the protrusion 34, a return spring 35 is provided at the bottom of the protrusion 34, the return spring 35 is sleeved on the outside of the guide rod 33, and a through groove 36 is provided on the outer wall of the unwinding roller 31 corresponding to the recess 32.

[0041] Specifically, in order to prevent the protrusion 34 from detaching from the sink 32, an extension seat can be integrally formed and fixedly installed on the two side walls opposite to the protrusion 34. At the same time, a groove is vertically opened on the inner wall of the sink 32, and the extension seat is slidably connected in the groove to limit the lifting distance of the protrusion 34.

[0042] In addition, to ensure that the protrusion 34 can stably enter the receiving groove 311, an inclined ramp is provided on the end face of the protrusion 34 away from the rotating rod 23, on the side away from the flip plate 122. The ramp can play a good guiding role. When the unwinding roller 31 slides on the rotating rod 23, the ramp can ensure that the protrusion 34 stably enters the receiving groove 311.

[0043] It should be noted that when the return spring 35 is in the extended state, the protrusion of the protrusion 34 extends out of the recess 32.

[0044] In addition, two retaining rings are symmetrically arranged on the outer wall of the unwinding roller 31, and paper aluminum is wound on the outer wall of the unwinding roller 31 between the two retaining rings.

[0045] Furthermore, the limiting component 4 includes: a connecting seat 41 fixedly connected to the mounting plate 11 on one side of the flip plate 122; a second electric push rod 42 fixedly connected to the side wall of the connecting seat 41 away from the flip plate 122; a limiting seat 43 fixedly connected to the output end of the second electric push rod 42; a limiting groove 431 for accommodating the unwinding roller 31 is opened on the side wall of the limiting seat 43 facing the flip plate 122; and an annular blocking ring 44 is fixedly connected around the outer wall of the unwinding roller 31 near the end of the flip plate 122.

[0046] Specifically, in this device, the limiting groove 431 has a semi-circular structure, and its internal diameter is the same as that of the unwinding roller 31.

[0047] The working principle and usage process of this utility model: After this utility model is installed,

[0048] After the paper aluminum is released from the unwinding roller 31, it moves between the first preheating fixture 13 and the adsorption plate 53. Then the vacuum generator 52 works to remove the air near the adsorption plate 53, so that the paper aluminum is laid flat and adhered to the adsorption plate 53 and is heated by the first preheating fixture 13.

[0049] The heated paper aluminum is moved to the second preheating fixture 14. After being kept warm by the second preheating fixture 14, it is wound onto the winding mechanism 15. At the same time as winding, the heat sealing roller 16 releases the cold aluminum and winds it together with the paper aluminum.

[0050] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A dual preheating device for a paper-aluminum packaging machine, characterized in that: include: A connecting plate (1) is fixedly installed on the connecting plate (1); The mounting plate (11) is provided with a flipping mechanism (12), a first preheating fixture (13), a second preheating fixture (14), and a winding mechanism (15) in sequence. The flipping mechanism (12) and the mounting plate (11) are rotatably connected, and two rotating components (2) are symmetrically connected on the flipping mechanism (12). Each rotating component (2) is detachably and fixedly mounted with an unwinding component (3). A limiting component (4) is also movably installed on the mounting plate (11) near the first preheating fixture (13), and the limiting component (4) and one of the unwinding components (3) are detachably connected; A leveling component (5) is movably connected to the mounting plate (11) on one side of the first preheating fixture (13), and a gap is reserved between the leveling component (5) and the first preheating fixture (13) for the roll material to pass through. A heat-sealing roller (16) is also movably mounted on the mounting plate (11) on one side of the winding mechanism (15).

2. The dual preheating device for a paper-aluminum packaging machine as described in claim 1, characterized in that: The leveling component (5) includes: A mounting base (51) is fixedly installed on the mounting plate (11) and located on one side of the first preheating fixture (13). A vacuum generator (52) is provided on one side of the mounting base (51). An adsorption plate (53) is provided between the first preheating fixture (13) and the mounting base (51). A rectifier box (54) is fixedly connected to the side wall of the adsorption plate (53) near the mounting base (51). A plurality of guide holes (531) communicating with the inner cavity of the rectifier box (54) are opened on the side wall of the adsorption plate (53) near the first preheating fixture (13). The inner cavity of the rectifier box (54) is connected to the vacuum generator (52) through a connecting pipe (55).

3. The dual preheating device for a paper-aluminum packaging machine as described in claim 2, characterized in that: A first electric actuator (56) is also fixedly installed on the mounting base (51), and the output end of the first electric actuator (56) is fixedly connected to the side wall of the rectifier box (54).

4. The dual preheating device for a paper-aluminum packaging machine as described in claim 1, characterized in that: The flipping mechanism (12) includes: A flip motor (121) is fixedly installed on the other side of the mounting plate (11), and a flip plate (122) is fixedly installed on the output end of the flip motor (121). The rotating assembly (2) has: A rotating hole (21) is opened on the end of the flip plate (122). A limiting ring (22) is fixedly connected around the inner peripheral wall of the rotating hole (21). A rotating rod (23) is rotatably arranged on the inner side of the limiting ring (22). Limiting rings (24) are provided on both sides of the limiting ring (22). The limiting rings (24) are fixedly connected to the outer peripheral wall of the rotating rod (23).

5. The dual preheating device for a paper-aluminum packaging machine as described in claim 4, characterized in that: The unwinding assembly (3) includes: The unwinding roller (31) has a receiving groove (311) at one end that can accommodate the rotating rod (23). At least one recess (32) is provided on the outer wall of the rotating rod (23). A guide rod (33) is vertically fixed on the inner bottom wall of the recess (32). A protrusion (34) is also slidably connected in the recess (32). A storage groove (341) for accommodating the guide rod (33) is provided on the inner bottom wall of the protrusion (34). The bottom of the protrusion (34) is disposed on the return spring (35), and the return spring (35) is sleeved on the outside of the guide rod (33); A through groove (36) is provided on the outer wall of the unwinding roller (31) corresponding to the sink (32).

6. The dual preheating device for a paper-aluminum packaging machine as described in claim 5, characterized in that: The limiting component (4) includes: A connecting seat (41) is fixedly connected to the mounting plate (11) on one side of the flip plate (122). A second electric push rod (42) is fixedly connected to the side wall of the connecting seat (41) away from the flip plate (122). A limiting seat (43) is fixedly connected to the output end of the second electric push rod (42). A limiting groove (431) for accommodating the unwinding roller (31) is opened on the side wall of the limiting seat (43) facing the flip plate (122). An annular retaining ring (44) is fixedly attached to the outer wall of the end of the unwinding roller (31) near the tipping plate (122).

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