Servo-driven double-sided heat-sealing device of bag making machine

Abstract

The utility model belongs to the field of bag making machines, and provides a bag making machine servo drive double-face heat sealing device which comprises a vertical plate, a moving assembly, a driving assembly and a heat sealing cutter. The vertical plate forms a supporting part and connecting parts connected to the two opposite sides of the supporting part. The two moving assemblies are arranged corresponding to the connecting parts, each moving assembly comprises a main connecting plate and an auxiliary connecting plate which are connected to the connecting parts at intervals, and further comprises a guide column connected to the main connecting plate in a sliding mode, a lead screw rotationally connected to the auxiliary connecting plate and a nut connected to the lead screw in a threaded mode. The guide post is connected with the nut, and the sliding direction of the guide post is parallel to the axial direction of the screw rod; the screw rods in the two groups of moving components are axially parallel and are provided with threads with opposite screwing directions; the driving assembly comprises a servo motor and an intermediate shaft in transmission connection with the servo motor. The lead screws in the two moving assemblies are in transmission connection with the intermediate shaft and used for synchronous rotation. The heat sealing cutter is connected to the guide column.

Description

Technical Field

[0001] This application belongs to the field of bag making machines, and particularly relates to a servo-driven double-sided heat sealing device for bag making machines. Background Technology

[0002] In the field of bag making machines, the heat sealing device is one of the core components, used to seal both sides of the bag material through heating and pressure. Traditional heat sealing devices mostly use mechanical transmission or pneumatic drive, which suffers from low precision, slow response, and high energy consumption. With the development of servo motor technology, servo drive systems have gradually become the preferred drive method for heat sealing devices due to their high precision, high response speed, and high efficiency. However, existing servo-driven heat sealing devices have complex structures, are difficult to install and debug, and struggle to achieve synchronous heat sealing on both sides, affecting bag making efficiency and quality. Therefore, it is necessary to solve the above-mentioned technical problems. Utility Model Content

[0003] The purpose of this application is to provide a servo-driven double-sided heat sealing device for a bag making machine, so as to solve the technical problem of low heat sealing efficiency in the prior art.

[0004] To achieve the above objectives, the technical solution adopted in this application is: to provide a servo-driven double-sided heat sealing device for a bag making machine, comprising:

[0005] The upright plate forms a support portion and a connecting portion connecting opposite sides of the support portion;

[0006] The motion assembly has two sets corresponding to the connecting part. The motion assembly includes a main connecting plate and an auxiliary connecting plate that are spaced apart on the connecting part. It also includes a guide post that is slidably connected to the main connecting plate, a lead screw that is rotatably connected to the auxiliary connecting plate, and a nut that is threaded to the lead screw. The guide post is connected to the nut and the sliding direction of the guide post is parallel to the axial direction of the lead screw. The lead screws in the two sets of motion assemblies are axially parallel and have threads with opposite directions of rotation.

[0007] The drive assembly includes a servo motor and a drive shaft connected to the servo motor. The lead screws in both sets of motion assemblies are drive-connected to the intermediate shaft and used for synchronous rotation.

[0008] A heat-sealing knife is connected to the guide post, and the heat-sealing knives connected to the two sets of guide posts are arranged opposite each other, with a gap between the heat-sealing knives for the target bag material to pass through.

[0009] Optionally, the lead screw is also rotatably connected to the main connecting plate.

[0010] Optionally, the guide posts are spaced apart in a plurality of manner, and the motion assembly further includes a support plate and a sliding plate connected between adjacent guide posts;

[0011] The heat sealing knife is connected to the support plate and then to the guide post via the support plate. The nut is connected to the sliding plate and then to the guide post via the sliding plate.

[0012] Optionally, the motion assembly further includes a sliding bearing connected to the main connecting plate, and the guide post is slidably connected to the main connecting plate through the sliding bearing.

[0013] Optionally, the intermediate shaft is parallel to the lead screw;

[0014] The drive assembly further includes a drive wheel connected to the intermediate shaft, a driven wheel connected to the lead screw, and a first synchronous belt connected between the drive wheel and the driven wheel. The intermediate shaft is sequentially connected to the lead screw via the drive wheel, the first synchronous belt, and the driven wheel.

[0015] Optionally, the two ends of the intermediate shaft are respectively connected to the main connecting plates in the two sets of motion components.

[0016] Optionally, the drive component further includes a second synchronous belt;

[0017] The output shaft of the servo motor is parallel to the intermediate shaft and is connected to the intermediate shaft via the second synchronous belt drive.

[0018] Optionally, at least two vertical plates are arranged in parallel at intervals;

[0019] Both the main connecting plate and the auxiliary connecting plate are disposed between adjacent vertical plates.

[0020] Optionally, a guide block is provided on the upright plate;

[0021] The guide block has a guide hole that is axially perpendicular to the guide post.

[0022] The beneficial effects of the servo-driven double-sided heat sealing device for bag making machines provided in this application are as follows: Compared with the prior art, in the servo-driven double-sided heat sealing device for bag making machines provided in this application, since the connection parts of the motion components and the heat sealing knives corresponding to the vertical plates are respectively arranged in two sets, and since the lead screws in the two sets of motion components are axially parallel and have opposite thread directions, when the intermediate shaft in the drive component drives the two sets of lead screws to rotate synchronously, the nut threaded on the lead screw can drive the guide post connected to the nut to slide relative to the main connecting plate. In this way, the heat sealing knives connected to the two guide posts can synchronously move closer or further away from each other. Therefore, the servo-driven double-sided heat sealing device for bag making machines provided in this application not only has a good double-sided synchronous heat sealing effect, but also significantly improves the heat sealing efficiency of the bag making machine, which is far superior to the prior art. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the 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.

[0024] Figure 1 This is a schematic diagram of the overall structure of the servo-driven double-sided heat sealing device for a bag making machine in the embodiments of this application;

[0025] Figure 2 This is a schematic diagram of the main structure of the servo-driven double-sided heat sealing device for a bag making machine in an embodiment of this application;

[0026] Figure 3 For along Figure 2 Cross-sectional view of line AA in the middle.

[0027] The reference numerals in the figures are as follows: 100, upright plate; 101, support part; 102, connecting part; 201, main connecting plate; 202, auxiliary connecting plate; 203, guide post; 204, lead screw; 205, nut; 206, support plate; 207, sliding plate; 208, sliding bearing; 301, servo motor; 302, intermediate shaft; 303, driving wheel; 304, driven wheel; 305, first synchronous belt; 306, second synchronous belt; 400, heat sealing knife; 500, guide block; 501, guide hole. Detailed Implementation

[0028] 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.

[0029] 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.

[0030] 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.

[0031] 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.

[0032] Please refer to the following: Figures 1 to 3 This application now describes a servo-driven double-sided heat-sealing device for a bag-making machine, based on an embodiment. The servo-driven double-sided heat-sealing device includes a vertical plate 100, a motion assembly, a drive assembly, and a heat-sealing knife 400. Wherein:

[0033] The upright plate 100 forms a support portion 101 and a connecting portion 102 connected to opposite sides of the support portion 101; two sets of motion components are provided corresponding to the connecting portions 102. The motion components include a main connecting plate 201 and an auxiliary connecting plate 202 spaced apart on the connecting portions 102, and also include a guide post 203 slidably connected to the main connecting plate 201, a lead screw 204 rotatably connected to the auxiliary connecting plate 202, and a nut 205 threadedly connected to the lead screw 204. The guide post 203 is connected to the nut 205, and the guide post 203 slides... The direction of movement is parallel to the axis of the lead screw 204. The lead screws 204 in the two sets of motion components are axially parallel and have threads with opposite directions of rotation. The drive assembly includes a servo motor 301 and an intermediate shaft 302 that is driven to the servo motor 301. The lead screws 204 in both sets of motion components are driven to the intermediate shaft 302 and used for synchronous rotation. The heat sealing knives 400 are connected to the guide posts 203, and the heat sealing knives 400 connected to the two sets of guide posts 203 are arranged opposite to each other, forming a gap between the heat sealing knives 400 for the target bag material to pass through. For ease of explanation, this embodiment uses a "C"-shaped upright plate 100 as an example.

[0034] According to the structure provided in this embodiment, in the servo-driven double-sided heat sealing device for bag making machine provided in this embodiment, since the motion components and the heat sealing knife 400 are respectively provided in two sets at the connection part 102 of the vertical plate 100, and since the lead screws 204 in the two sets of motion components are axially parallel and have opposite thread directions, when the intermediate shaft 302 in the drive component drives the two sets of lead screws 204 to rotate synchronously, the nut 205 threaded on the lead screw 204 can drive the guide post 203 connected on the nut 205 to slide relative to the main connecting plate 201. In this way, the heat sealing knives 400 connected on the two guide posts 203 can synchronously move closer or further away from each other. Therefore, the servo-driven double-sided heat sealing device for bag making machine provided in this embodiment not only has a good double-sided synchronous heat sealing effect, but also significantly improves the heat sealing efficiency of the bag making machine, which is far superior to the prior art.

[0035] In another embodiment of this application, please refer to [the relevant document / reference]. Figures 1 to 3 The lead screw 204 is also rotatably connected to the main connecting plate 201. According to the structure provided in this embodiment, the lead screw 204 can form better rotational stability by being rotatably connected to the main connecting plate 201 and the auxiliary connecting plate 202 respectively, which is beneficial to further improve the heat sealing efficiency of the servo-driven double-sided heat sealing device of the bag making machine in this embodiment.

[0036] In another embodiment of this application, please refer to [the relevant document / reference]. Figures 1 to 3 The guide posts 203 are spaced apart, and the motion assembly also includes a support plate 206 and a sliding plate 207 connected between adjacent guide posts 203. The heat sealing knife 400 is connected to the support plate 206 and to the guide posts 203 through the support plate 206. The nut 205 is connected to the sliding plate 207 and to the guide posts 203 through the sliding plate 207. According to the structure provided in this embodiment, the movement stability of the heat sealing knife 400 can be significantly improved by spaced apart multiple guide posts 203. This allows the two heat sealing knives 400 connected to the two sets of motion assemblies to maintain better movement synchronization, which is also beneficial to further improve the heat sealing efficiency of the servo-driven double-sided heat sealing device of the bag making machine in this embodiment.

[0037] In another embodiment of this application, please refer to [the relevant document / reference]. Figures 1 to 3 The motion component also includes a sliding bearing 208 connected to the main connecting plate 201, and the guide post 203 is slidably connected to the main connecting plate 201 via the sliding bearing 208. According to the structure provided in this embodiment, the sliding bearing 208 connected to the main connecting plate 201 can significantly improve the sliding stability of the guide post 203 relative to the main connecting plate 201, which is beneficial for further improving the heat sealing efficiency of the servo-driven double-sided heat sealing device of the bag making machine in this embodiment.

[0038] In another embodiment of this application, please refer to [the relevant document / reference]. Figures 1 to 3 The intermediate shaft 302 is parallel to the lead screw 204. The drive assembly also includes a drive wheel 303 connected to the intermediate shaft 302, a driven wheel 304 connected to the lead screw 204, and a first synchronous belt 305 connecting the drive wheel 303 and the driven wheel 304. The intermediate shaft 302 is sequentially connected to the lead screw 204 via the drive wheel 303, the first synchronous belt 305, and the driven wheel 304. According to the structure provided in this embodiment, when the intermediate shaft 302 rotates, it can drive the two sets of lead screws 204 to rotate synchronously through the two sets of drive wheels 303, driven wheels 304, and the first synchronous belt 305, respectively. This is beneficial to further improve the heat sealing efficiency of the servo-driven double-sided heat sealing device of the bag making machine in this embodiment.

[0039] In another embodiment of this application, please refer to [the relevant document / reference]. Figures 1 to 3The two ends of the intermediate shaft 302 are respectively connected to the main connecting plate 201 in the two sets of motion components. The intermediate shaft 302, which is rotatably connected to the main connecting plate 201, can form better rotational stability, which is beneficial to further improve the heat sealing efficiency of the servo-driven double-sided heat sealing device of the bag making machine in this embodiment.

[0040] In another embodiment of this application, please refer to [the relevant document / reference]. Figures 1 to 3 The drive assembly also includes a second synchronous belt 306; the output shaft of the servo motor 301 is parallel to the intermediate shaft 302 and is connected to the intermediate shaft 302 via the second synchronous belt 306. According to the structure provided in this embodiment, the servo motor 301, with its output shaft parallel to the intermediate shaft 302, can stably drive the intermediate shaft 302 via the second synchronous belt 306, which is beneficial for further improving the heat sealing efficiency of the servo-driven double-sided heat sealing device of the bag-making machine in this embodiment.

[0041] In another embodiment of this application, please refer to [the relevant document / reference]. Figures 1 to 3 At least two upright plates 100 are arranged parallel to each other; the main connecting plate 201 and the auxiliary connecting plate 202 are both arranged between adjacent upright plates 100. According to the structure provided in this embodiment, the at least two upright plates 100 arranged at intervals can significantly improve the positional stability of the main connecting plate 201 and the auxiliary connecting plate 202, which is beneficial to further improve the heat sealing efficiency of the servo-driven double-sided heat sealing device of the bag making machine in this embodiment.

[0042] In another embodiment of this application, please refer to [the relevant document / reference]. Figures 1 to 3 A guide block is provided on the upright plate 100; a guide hole 501 is formed on the guide block with its axis perpendicular to the guide post 203. According to the structure provided in this embodiment, the guide block provided on the upright plate 100 and the guide hole 501 provided on the guide block can make it easier to move and install the bag making machine servo drive double-sided heat sealing device provided in this embodiment on the bag making machine body. This allows it to better adapt to the position of the target bag material, which is conducive to further improving the heat sealing efficiency of the bag making machine servo drive double-sided heat sealing device in this embodiment.

[0043] 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 servo-driven double-sided heat sealing apparatus for a bag making machine, characterized by, The utility model relates to a double-sided heat sealing device of bag making machine servo drive, including: Vertical plate (100) forms support part (101) and the connecting part (102) connected in the opposite sides of support part (101); Motion assembly is provided with two groups corresponding connecting part (102), motion assembly includes the main connecting plate (201) and auxiliary connecting plate (202) spaced apart and connected on connecting part (102), still includes the guide pillar (203) slidingly connected in main connecting plate (201), the lead screw (204) rotationally connected on auxiliary connecting plate (202) and the nut (205) screw threadedly connected to lead screw (204), guide pillar (203) is connected with nut (205) and the sliding direction of guide pillar (203) is parallel to the axial direction of lead screw (204), the axial direction of lead screw (204) in two groups motion assembly is parallel and has the thread of opposite rotation direction; Driving assembly, including servo motor (301) and transmission shaft (302) transmission connected to servo motor (301), lead screw (204) in two groups motion assembly is all transmission connected with transmission shaft (302) and is used for synchronous rotation; Hot sealing cutter (400) is connected on guide pillar (203) and the hot sealing cutter (400) connected on two groups guide pillar (203) is oppositely arranged, and the interval for target bag material passes between hot sealing cutter (400).

2. The double-sided heat sealing device of bag making machine servo drive according to claim 1, wherein: The lead screw (204) is also rotationally connected to the main connecting plate (201).

3. The double-sided heat sealing device of bag making machine servo drive according to claim 1, wherein: The guide pillars (203) are spaced apart, and the motion assembly further comprises a support plate (206) and a sliding plate (207) connected between adjacent guide pillars (203); The hot sealing cutter (400) is connected to the support plate (206) and connected to the guide pillars (203) through the support plate (206), and the nut (205) is connected to the sliding plate (207) and connected to the guide pillars (203) through the sliding plate (207).

4. The double-sided heat sealing device of bag making machine servo drive according to any one of claims 1-3, wherein: The motion assembly further comprises a sliding bearing (208) connected to the main connecting plate (201), and the guide pillars (203) are slidingly connected to the main connecting plate (201) through the sliding bearing (208).

5. The double-sided heat sealing device of bag making machine servo drive according to claim 1, wherein: The transmission shaft (302) is parallel to the lead screw (204). The driving assembly further comprises a driving wheel (303) connected to the intermediate shaft (302), a driven wheel (304) connected to the lead screw (204), and a first synchronous belt (305) connected between the driving wheel (303) and the driven wheel (304), and the intermediate shaft (302) is in driving connection with the lead screw (204) through the driving wheel (303), the first synchronous belt (305) and the driven wheel (304) in sequence.

6. The servo-driven double-sided heat sealing device of the bag making machine according to claim 5, characterized in that: Both ends of the intermediate shaft (302) are connected to the main connecting plates (201) in the two groups of movement assemblies.

7. The servo-driven double-sided heat sealing device of the bag making machine according to claim 5, characterized in that: The driving assembly further comprises a second synchronous belt (306); The output shaft of the servo motor (301) is parallel to the intermediate shaft (302) and is in driving connection with the intermediate shaft (302) through the second synchronous belt (306).

8. The servo-driven double-sided heat sealing device of the bag making machine according to claim 1, characterized in that: At least two of the vertical plates (100) are arranged in parallel and at intervals; Both the main connecting plates (201) and the auxiliary connecting plates (202) are arranged between adjacent vertical plates (100).

9. The servo-driven double-sided heat sealing device of the bag making machine according to claim 8, characterized in that: A guide block is arranged on the vertical plate (100); A guide hole (501) axially perpendicular to the guide column (203) is formed on the guide block.

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