Round paper drum shrinking machine

Abstract

This application relates to the technical field of round paper drum processing equipment, and in particular to a round paper drum necking machine, including a frame and a worktable. The worktable is mounted on top of the frame, and a first rolling gear is rotatably mounted on the worktable. A rotation drive mechanism that drives the first rolling gear is located inside the frame. A lifting drive mechanism is also provided on the worktable, and a second rolling gear is rotatably mounted on the output structure of the lifting drive mechanism. The rotation axes of both the first and second rolling gears are vertically arranged and both are located above the worktable. The second rolling gear at the highest position is separated from the first rolling gear, and the second rolling gear at the lowest position is engaged with the first rolling gear. The round paper drum necking machine of this application uses fewer parts, is simple to assemble, has good operational stability, and has low manufacturing costs and occupies less space, making it suitable for widespread application.

Description

Technical Field

[0001] This application relates to the field of round paper drum processing equipment, and in particular to a round paper drum necking machine. Background Technology

[0002] Round paper drums are widely used in the packaging industry. They have low processing costs and a very simple production process. They are very convenient for packaging tea or logistics products. During production, the top of the round paper drum needs to be narrowed to make it easier to close the lid and seal it.

[0003] A search of Chinese Patent Application No. 202311757292.9 reveals a necking machine for processing round paper drums, comprising a base plate, a feeding assembly, a necking assembly, and an adjusting assembly. The base plate has mounting holes fixedly connected to its four corners, a support base fixedly connected to one side of its top, a necking machine body fixedly connected to the top of the support base, a telescopic rod fixedly connected to the bottom of the necking machine body, and the bottom end of the telescopic rod fixedly connected to the base plate. A limit plate is fixedly connected to the base plate. The necking assembly includes a cavity formed inside the necking machine body, a pair of cylinders fixedly connected inside the cavity, a turntable rotatably connected to the cylinders, a control arm fixedly connected to the surface of the turntable, a first roller rotatably connected to one end of the control arm, a push plate fixedly connected to the side of the turntable surface opposite to the control arm, a second roller fixedly connected to one end of the push plate, and a first shaft pin fixedly connected to the push plate.

[0004] Regarding the aforementioned technologies, the inventors believe that the following technical defects exist and require improvement:

[0005] Common round paper drum necking devices have many parts, are complex to assemble, have poor operational stability, are expensive to manufacture, and occupy a lot of space, making them unsuitable for widespread application. Utility Model Content

[0006] This application provides a round paper drum shrinking machine to improve the following technical problems:

[0007] Common round paper drum necking devices have many parts, are complex to assemble, have poor operational stability, are expensive to manufacture, and occupy a lot of space, making them unsuitable for widespread application.

[0008] This application provides a round paper drum shrinking machine, which adopts the following technical solution:

[0009] A round paper drum necking machine includes a frame and a worktable. The worktable is mounted on the top of the frame. A first knurling gear is rotatably mounted on the worktable, and a rotation drive mechanism that drives the first knurling gear to rotate is provided inside the frame. A lifting drive mechanism is also provided on the worktable. A second knurling gear is rotatably mounted on the output structure of the lifting drive mechanism. The rotation axes of the first and second knurling gears are both arranged vertically and are both located above the worktable. The second knurling gear at the highest position is separated from the first knurling gear, and the second knurling gear at the lowest position is engaged with the first knurling gear. The mouth end of the round paper drum to be processed is flipped onto the first knurling gear and sandwiched between the second knurling gears. When the first and second knurling gears rotate in the same direction, the mouth of the round paper drum to be processed is deformed by compression, and the mouth size is reduced.

[0010] In one feasible technical solution of this application, the tooth tips of both the first and second rolled gears are convex circular arc surfaces.

[0011] In one feasible technical solution of this application, the diameter of the first rolling gear is 1.5-2.5 times the diameter of the second rolling gear.

[0012] In one feasible technical solution of this application, an elastic rubber pad is also laid on the workbench. The elastic rubber pad is located below the first rolling mark gear and is used to contact the mouth end of the round paper drum to be processed.

[0013] In one feasible technical solution of this application, the rotation drive mechanism includes a horizontal rotation motor, a reduction steering gearbox and a rotation shaft. The rotation shaft is rotatably mounted on the workbench and arranged vertically. The top of the rotation shaft is fixed to the bottom center of the first rolling gear. The reduction steering gearbox is located between the bottom of the rotation shaft and the output shaft of the horizontal rotation motor. The horizontal rotation motor is installed in the frame.

[0014] In one feasible technical solution of this application, the workbench is further provided with a first hole and a second hole. The lifting drive mechanism includes a support, a lifting cylinder, a lifting base plate, and a lifting rod. The support spans across the first hole, the lifting cylinder is installed on the support, the telescopic rod of the lifting cylinder passes through the first hole and extends into the machine frame, the lifting base plate is fixedly connected to the bottom of the telescopic rod of the lifting cylinder, the bottom of the lifting rod is also fixed to the lifting base plate, the lifting rod passes through the second hole, and the second rolling gear is rotatably connected to the top of the lifting rod.

[0015] In one feasible technical solution of this application, a sealing baffle is also provided on the periphery of the rack.

[0016] In summary, this application includes at least one of the following beneficial technical effects:

[0017] Under normal circumstances, the lifting drive mechanism is not activated, and the second rolling gear is in the highest position (i.e., the second rolling gear is above the first rolling gear and the two are not in contact). At this time, the mouth end of the round paper drum to be processed is reversed and placed on the first rolling gear, that is, the inner circumferential wall of the mouth of the round paper drum to be processed abuts against part of the tooth tip of the first rolling gear. Then, the lifting drive mechanism is activated to drive the second rolling gear to descend to the lowest position. At this time, part of the tooth tip of the second rolling gear cooperates with part of the tooth tip of the first rolling gear to clamp the mouth of the round paper drum to be processed. Then, the rotation drive mechanism is activated to drive the first rolling gear to rotate until the mouth of the round paper drum to be processed is compressed and deformed all around to reduce the size of the mouth. Then, the lifting drive mechanism is closed, and its telescopic rod returns to drive the second rolling gear to rise to the highest position, and the round paper drum to be processed after the mouth is reduced can be taken out.

[0018] The equipment uses fewer parts, is easy to assemble, has good operational stability, low manufacturing cost, and occupies less space, making it suitable for widespread application. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the structure of the round paper drum shrinking machine according to an embodiment of this application.

[0021] Figure 2 This is a schematic diagram of the internal structure of the round paper drum shrinking machine in the embodiments of this application.

[0022] Explanation of reference numerals in the attached figures:

[0023] 1. Frame; 11. First hole; 12. Second hole; 13. Encapsulation baffle;

[0024] 2. Workbench;

[0025] 3. The first rolling mark gear;

[0026] 4. Rotary drive mechanism; 41. Horizontal rotary motor; 42. Reduction steering gearbox; 43. Rotary shaft;

[0027] 5. Lifting drive mechanism; 51. Support; 52. Lifting cylinder; 53. Lifting base plate; 54. Lifting rod;

[0028] 6. Second rolling mark gear;

[0029] 7. Elastic rubber pad. Detailed Implementation

[0030] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0031] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0032] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application 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. Therefore, they should not be construed as limitations on this application.

[0033] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0034] The following is in conjunction with the appendix Figure 1-2 This application will be described in further detail.

[0035] This application discloses a round paper drum shrinking machine. (Refer to...) Figure 1-2The round paper drum shrinking machine includes a frame 1 and a worktable 2. The worktable 2 is installed on the top of the frame 1. A first rolling gear 3 is rotatably mounted on the worktable 2. The frame 1 is equipped with a rotation drive mechanism 4 that drives the first rolling gear 3 to rotate. The worktable 2 is also equipped with a lifting drive mechanism 5. A second rolling gear 6 is rotatably mounted on the output structure of the lifting drive mechanism 5. The rotation axes 43 of the first rolling gear 3 and the second rolling gear 6 are both arranged vertically and are located above the worktable 2. The second rolling gear 6 at the highest position is separated from the first rolling gear 3, and the second rolling gear 6 at the lowest position is in contact with the first rolling gear 3. The mouth end of the round paper drum to be processed is flipped onto the first rolling gear 3 and sandwiched between the second rolling gears 6. When the first rolling gear 3 and the second rolling gear 6 rotate in the same direction, the mouth of the round paper drum to be processed is deformed by compression and the size of the mouth is reduced.

[0036] To prevent the opening of the round paper drum to be processed from being damaged by the first rolling gear 3 and the second rolling gear 6, the tooth tips of the first rolling gear 3 and the second rolling gear 6 are both convex arc surfaces. Moreover, in order to make the size of the first rolling gear 3 suitable for the opening of the round paper drum with a larger diameter, the diameter of the first rolling gear 3 is 1.5-2.5 times the diameter of the second rolling gear 6.

[0037] Since the round paper drum to be processed needs to rotate along the outer contour of the first knurling gear 3 during the compression and shrinking process, in order to prevent the drum opening of the round paper drum to be processed from being severely worn during rotation, an elastic rubber pad 7 is also laid on the workbench 2, and a sealing baffle 13 is also provided on the periphery of the frame 1. The elastic rubber pad 7 is located below the first knurling gear 3. The elastic rubber pad 7 is used to contact the drum opening end of the round paper drum to be processed. The elastic rubber pad 7 has a certain elasticity, which can protect the drum opening of the round paper drum to be processed.

[0038] In this embodiment, the rotation drive mechanism 4 includes a horizontal rotation motor 41, a reduction steering gearbox 42, and a rotation shaft 43. The rotation shaft 43 is rotatably mounted on the workbench 2 and arranged vertically. The top of the rotation shaft 43 is fixed to the bottom center of the first rolling gear 3. The reduction steering gearbox 42 is located between the bottom of the rotation shaft 43 and the output shaft of the horizontal rotation motor 41. The horizontal rotation motor 41 is installed in the frame 1.

[0039] The rotation drive mechanism 4 designed above has a simple structure, stable operation, and is very easy to operate. It can stably drive the first rolling gear 3 to rotate at a preset low speed.

[0040] In this embodiment, the workbench 2 is also provided with a first hole 11 and a second hole 12. The lifting drive mechanism 5 includes a support 51, a lifting cylinder 52, a lifting base plate 53, and a lifting rod 54. The support 51 spans across the first hole 11. The lifting cylinder 52 is installed on the support 51. The telescopic rod of the lifting cylinder 52 passes through the first hole 11 and extends into the machine frame 1. The lifting base plate 53 is fixedly connected to the bottom of the telescopic rod of the lifting cylinder 52. The bottom of the lifting rod 54 is also fixed to the lifting base plate 53. The lifting rod 54 passes through the second hole 12. The second rolling gear 6 is rotatably connected to the top of the lifting rod 54.

[0041] The lifting drive mechanism 5 designed above has a simple structure, stable operation, and is very easy to operate. It can stably drive the second rolling gear 6 to rise and fall along a preset path so as to pick up and put in the round paper drum to be processed.

[0042] The working principle and beneficial technical effects of the round paper drum shrinking machine of this application embodiment are roughly as follows:

[0043] Under normal conditions, the lifting drive mechanism 5 is not activated, and the second rolling gear 6 is in the highest position (i.e., the second rolling gear 6 is above the first rolling gear 3 and the two are not in contact). At this time, the mouth end of the round paper drum to be processed is reversed and placed on the first rolling gear 3, that is, the inner circumferential wall of the mouth of the round paper drum to be processed abuts against part of the tooth tip of the first rolling gear 3. Then, the lifting drive mechanism 5 is activated, which drives the second rolling gear 6 to descend to the lowest position. At this time, part of the tooth tip of the second rolling gear cooperates with part of the tooth tip of the first rolling gear 3 to clamp the mouth of the round paper drum to be processed. Then, the rotation drive mechanism 4 is activated to drive the first rolling gear 3 to rotate until the mouth of the round paper drum to be processed is compressed and deformed all around to reduce the size of the mouth. Then, the lifting drive mechanism 5 is closed, and its telescopic rod returns to drive the second rolling gear 6 to rise to the highest position, and the round paper drum to be processed after the mouth is reduced can be taken out.

[0044] The equipment uses fewer parts, is easy to assemble, has good operational stability, low manufacturing cost, and occupies less space, making it suitable for widespread application.

[0045] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A round paper drum necking machine, characterized in that, The system includes a frame (1) and a worktable (2). The worktable (2) is mounted on the top of the frame (1). A first rolling gear (3) is rotatably mounted on the worktable (2). A rotation drive mechanism (4) that drives the first rolling gear (3) to rotate is provided inside the frame (1). A lifting drive mechanism (5) is also provided on the worktable (2). A second rolling gear (6) is rotatably mounted on the output structure of the lifting drive mechanism (5). The rotation shafts (43) of the first rolling gear (3) and the second rolling gear (6) are connected. The lines are arranged vertically and both are located above the workbench (2). The second rolling gear (6) at the highest position is separated from the first rolling gear (3), and the second rolling gear (6) at the lowest position is in contact with the first rolling gear (3). The mouth end of the round paper drum to be processed is flipped onto the first rolling gear (3) and sandwiched between the second rolling gear (6). When the first rolling gear (3) and the second rolling gear (6) rotate in the same direction, the mouth of the round paper drum to be processed is deformed by squeezing and the size of the mouth is reduced.

2. The round paper drum necking machine according to claim 1, characterized in that, The tooth tips of the first knurled gear (3) and the second knurled gear (6) are both convex circular arc surfaces.

3. The round paper drum necking machine according to claim 1, characterized in that, The diameter of the first rolling gear (3) is 1.5-2.5 times the diameter of the second rolling gear (6).

4. The round paper drum necking machine according to claim 1, characterized in that, An elastic rubber pad (7) is also laid on the workbench (2). The elastic rubber pad (7) is located below the first rolling gear (3). The elastic rubber pad (7) is used to contact the mouth end of the round paper drum to be processed.

5. The round paper drum necking machine according to claim 1, characterized in that, The rotation drive mechanism (4) includes a horizontal rotary motor (41), a reduction steering gearbox (42), and a rotating shaft (43). The rotating shaft (43) is rotatably mounted on the worktable (2) and arranged vertically. The top of the rotating shaft (43) is fixed to the bottom center of the first rolling gear (3). The reduction steering gearbox (42) is located between the bottom of the rotating shaft (43) and the output shaft of the horizontal rotary motor (41). The horizontal rotary motor (41) is installed inside the frame (1).

6. The round paper drum necking machine according to claim 1, characterized in that, The workbench (2) is also provided with a first hole (11) and a second hole (12). The lifting drive mechanism (5) includes a support (51), a lifting cylinder (52), a lifting base plate (53), and a lifting rod (54). The support (51) spans across the first hole (11). The lifting cylinder (52) is installed on the support (51). The telescopic rod of the lifting cylinder (52) passes through the first hole (11) and extends into the machine frame (1). The lifting base plate (53) is fixedly connected to the bottom of the telescopic rod of the lifting cylinder (52). The bottom of the lifting rod (54) is also fixed to the lifting base plate (53). The lifting rod (54) passes through the second hole (12). The second rolling gear (6) is rotatably connected to the top of the lifting rod (54).

7. The round paper drum necking machine according to claim 1, characterized in that, The frame (1) is also provided with a sealing baffle (13) on its periphery.

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