Handle fixing device of bag making machine and bag making machine

Abstract

The utility model provides a kind of handle fixing device and bag making machine of bag making machine, pressing assembly includes pressing drive component, mounting component and a pair of pressing component, pressing drive component is set on the rack of bag making machine, the output end of pressing drive component is connected with mounting component, a pair of pressing component is spaced apart in first direction and is set to the side of mounting component towards base material, a pair of pressing component is integrated in same mounting component and is uniformly driven by pressing drive component, can drive a pair of pressing component along pressing direction synchronous displacement, the pressing force degree of two end portions of handle, pressing stroke keeps uniform and consistent;While common drive transmission structure can let a pair of pressing component keep similar wear degree and movement accuracy in long-term operation process, guarantee the adhesion and compaction quality of two end portions of handle and base material, to improve the finished product yield of bag making machine, guarantee bag making process continuous smooth operation, improve the processing quality of bag making machine.

Description

Technical Field

[0001] This utility model relates to the technical field of packaging bag making equipment, and in particular to a handle fixing device for a bag making machine. Background Technology

[0002] Packaging bags are a common type of packaging container, usually equipped with handles that connect to the bag body for easy carrying. As the main part for carrying, the strength of the connection between the handle and the bag body directly determines the load-bearing capacity of the stand-up pouch. A high-strength connection ensures that the stand-up pouch is not easily broken or detached when loaded with heavy objects, thus meeting the needs of various usage scenarios.

[0003] Therefore, in the production process of packaging bags, bag-making machines need to be equipped with handle fixing devices to precisely press and fix the two ends of the handle to the preset positions on the bag substrate, completing the processing of the handle and the bag substrate. Currently, in conventional handle fixing devices, the two sets of fixing structures used to fix the two ends of the handle often use independent, separate fixing components. These separate fixing components each require a drive structure, but it is difficult to ensure the synchronization of their movements during operation. This easily leads to inconsistent pressing pressure and adhesion at the two ends of the handle, resulting in one end being firmly pressed while the other end is loosely attached. Furthermore, because the two independently operating fixing components experience different degrees of wear and movement errors over long-term operation, this further exacerbates the deviation in the fixing effect at the two ends of the handle. This not only reduces the overall connection strength between the handle and the substrate but also easily leads to a decrease in the product yield of the bag-making machine, affecting the continuity of bag-making processing and the stability of production quality. Utility Model Content

[0004] The purpose of this invention is to solve the technical problem that in the prior art, the separate fixing components of the handle fixing device cannot guarantee the synchronization of their movements during operation. Because the two independently working fixing components have different wear levels and movement errors during long-term operation, the deviation of the fixing effect at the two ends of the handle will be further aggravated. This not only reduces the overall connection strength between the handle and the substrate, but also easily causes a decrease in the product yield of the bag making machine.

[0005] To solve the above-mentioned technical problems, the present invention discloses a handle fixing device for a bag making machine, including a pressing assembly. The pressing assembly includes a pressing drive component, a mounting component, and a pair of pressing components. The pressing drive component is disposed on the frame of the bag making machine, and the output end of the pressing drive component is connected to the mounting component. The pair of pressing components are disposed at intervals from each other in a first direction on the side of the mounting component facing the substrate.

[0006] The pressing drive component drives the mounting component and links a pair of pressing components to move synchronously in the pressing direction. Furthermore, the first direction is perpendicular to the pressing direction.

[0007] By adopting the above technical solution, a pair of pressing components are integrated into the same mounting component and driven by a unified pressing drive component. This allows the pair of pressing components to move synchronously along the pressing direction, thereby avoiding the problem of asynchronous movement of existing separate fixing components. This ensures that the pressing force and pressing stroke at both ends of the handle remain uniform. At the same time, the common drive transmission structure allows the pair of pressing components to maintain similar wear and motion accuracy during long-term operation, reducing the probability of deviations in the fixing effect at both ends of the handle due to differences in component wear and motion errors. This ensures stable adhesion and pressing quality between the two ends of the handle and the substrate, significantly improving the overall connection strength and bonding stability between the handle and the substrate. It also reduces problems such as weak adhesion and partial detachment of the handle, thereby improving the yield rate of the bag making machine, ensuring continuous and stable operation of the bag making process, and improving the processing quality of the bag making machine.

[0008] The present invention also discloses a handle fixing device for a bag making machine. The pressing drive component includes a pressing drive component and a pressing transmission component. One end of the pressing transmission component is connected to the output end of the pressing drive component, and the other end is connected to the mounting component.

[0009] Furthermore, the handle fixing device also includes a pressing guide extending in the pressing direction, one end of which is fixedly connected to the mounting component, and the other end is slidably mounted on the frame.

[0010] By adopting the above technical solution, the power of the pressing drive is smoothly and accurately transmitted to the mounting component through the pressing transmission component. The pressing guide component can limit and guide the pressing movement of the mounting component and the pair of pressing components, restricting the mounting component from shifting, shaking or tilting during the movement, reducing positional deviation and mechanical jamming during the movement, further improving the smoothness and alignment accuracy of the pressing action, reducing abnormal wear between components, and ensuring the pressing consistency of the pair of pressing components.

[0011] The present invention also discloses a handle fixing device for a bag making machine, wherein the pressing drive component is configured as a pressing drive motor, the pressing transmission component is configured as a swing arm, one end of the swing arm is eccentrically connected to the output end of the pressing drive motor, and the other end is hinged to the corresponding side of the mounting component.

[0012] Furthermore, the pressing guide includes a pair of pressing guide rods spaced apart from each other on both sides of the pressing transmission member in the first direction.

[0013] Using the above technical solution, the rotational motion of the pressing drive motor can be converted into the reciprocating swing of the rocker arm. Through the hinged connection between the rocker arm and the mounting component, the mounting component and the pressing component can then perform a linear reciprocating pressing action along the pressing direction. This transmission structure is simple and compact, with efficient power transmission and stable motion output rhythm, and can continuously provide a stable driving force for a pair of pressing components. At the same time, a pair of pressing guide rods are arranged at intervals on both sides of the pressing transmission component, which can form a symmetrical limiting guide for the movement of the mounting component from both sides, further offsetting the lateral component force generated during the rocker arm transmission process, preventing the mounting component from tilting or twisting, and keeping the pair of pressing components in a stable pressing posture.

[0014] The present invention also discloses a handle fixing device for a bag making machine. The mounting components include a first mounting seat, a second mounting seat, and a buffer member located between the first mounting seat and the second mounting seat, which are spaced apart along the pressing direction. The surface of the first mounting seat opposite to the second mounting seat is connected to the pressing drive component. A pair of pressing components are provided on the side of the second mounting seat opposite to the first mounting seat.

[0015] Furthermore, the cushioning element can elastically expand and contract in the pressing direction.

[0016] By adopting the above technical solution, a flexible connection structure is formed by the first mounting base, the second mounting base and the buffer member that can elastically extend and retract along the pressing direction. The force output by the pressing drive component is first transmitted to the first mounting base, and then buffered and transitioned by the buffer member before acting on the second mounting base and the pressing component. This can effectively buffer the hard impact generated at the moment of pressing contact, and avoid rigid collision between the pressing component and the handle and the substrate. This can not only prevent the substrate from being crushed and the handle from being deformed due to excessive instantaneous pressure, but also reduce the vibration and noise generated by the reciprocating motion of the mechanism.

[0017] Meanwhile, the elastic expansion and contraction characteristics of the buffer ensure that the pressing component flexibly fits the workpiece surface, adapts to the slight thickness difference of the substrate, and makes the force on the handle end more gentle and uniform, further improving the bonding effect of the handle end.

[0018] The present invention also discloses a handle fixing device for a bag making machine. The buffer component includes a pair of buffer cylinders spaced apart along a first direction. Each buffer cylinder is mounted on a first mounting base and its telescopic end is connected to a second mounting base.

[0019] Furthermore, a buffer guide extending in the pressing direction is provided between the first mounting base and the second mounting base. The buffer guide is configured as a pair of buffer guide rods spaced apart in the first direction. One end of each buffer guide rod is fixedly connected to the first mounting base, and the other end is slidably disposed on the second mounting base.

[0020] Using the above technical solution, the buffer cylinder has a stable elastic buffer stroke and controllable buffer damping. Compared with ordinary elastic structures, the buffer cylinder has a more balanced buffer force and stronger pressure bearing capacity. It can accurately absorb the rigid impact force at the moment of pressing, flexibly release the instantaneous pressure, prevent the pressing overload from damaging the base material and handle structure, and make the pressure on both ends of the handle more even. With the paired buffer guide rods that extend along the pressing direction, the relative movement of the two sets of mounting seats can be limited and guided when the buffer cylinder is extended and retracted, avoiding the problems of skew and jamming during the extension and retraction of the buffer cylinder, and offsetting the lateral force.

[0021] The present invention also discloses a handle fixing device for a bag making machine. The handle fixing device further includes an adjustable spacing component. A pair of pressing components are disposed on the side of the mounting component facing the substrate through the adjustable spacing component, and the spacing in the first direction is adjustable.

[0022] By employing the above technical solution, the spacing adjustment component allows for flexible adjustment of the distance between a pair of pressing components in the first direction. This enables precise adjustment of the relative distance between the pressing components according to the actual processing requirements of different bag sizes and handle dimensions, thus meeting the fixed processing needs of handles of various sizes and specifications. Furthermore, because the spacing adjustment component is located on the mounting component, the synchronicity and uniform force distribution of the pressing actions of the pair of pressing components can be maintained even after the spacing adjustment is completed.

[0023] The present invention also discloses a handle fixing device for a bag making machine, wherein the adjusting component and a pair of pressing components are both connected by transmission, and the pair of pressing components can move synchronously towards or away from each other along a first direction.

[0024] Using the above technical solution, the distance adjustment component can drive a pair of pressing components to move synchronously towards or away from each other along the first direction, so as to realize the synchronous symmetrical adjustment of the distance between the two. Compared with the method of adjusting one side separately, it can effectively ensure that the pair of pressing components always maintain a central symmetrical layout, avoid the problem of position shift and alignment deviation after adjustment, and ensure that the pressing positions at both ends of the handle correspond accurately under different distances.

[0025] The present invention also discloses a handle fixing device for a bag making machine. The adjusting component includes an adjusting drive and an adjusting transmission component. One end of the adjusting transmission component is connected to the adjusting drive, and the other end is connected to a pair of pressing components respectively.

[0026] By adopting the above technical solution, the adjustable drive provides stable power and transmits power synchronously to a pair of pressing parts through the adjustable transmission, which reliably realizes the symmetrical synchronous adjustable action of a pair of pressing parts. This ensures that the travel and adjustment rate of a pair of pressing parts are completely consistent, avoiding the problems of alignment deviation and uneven spacing caused by manual individual adjustment.

[0027] The present invention also discloses a handle fixing device for a bag making machine. The adjusting component further includes an adjusting guide, which is an adjusting guide rail that is disposed on the side of the mounting component facing the substrate and extends along a first direction. A pair of pressing components are movably disposed on the adjusting guide rail.

[0028] The pitch-adjusting drive component is configured as a pitch-adjusting drive motor, and the pitch-adjusting transmission component is configured as a transmission screw extending along a first direction. A pair of threaded segments are spaced apart on the outer periphery of the transmission screw in the first direction. The two threaded segments have opposite directions of rotation and are respectively connected to the corresponding threaded holes of a pair of pressing components.

[0029] Furthermore, the output end of the adjustable pitch drive motor is connected to one end of the transmission lead screw via a transmission belt assembly.

[0030] The above technical solution uses an adjustable-pitch drive motor as the power source, and achieves smooth power transmission through a transmission belt assembly, driving the transmission screw to operate stably. By utilizing two threaded sections with opposite directions on the screw, a pair of pressing components can be synchronously driven to precisely move in opposite directions along the first direction when the screw rotates. This has the advantages of good adjustment synchronization and high positioning accuracy. At the same time, the adjustable-pitch guide rail extending along the first direction serves as an adjustable-pitch guide, providing linear limits and support for the sliding adjustment of each pressing component, limiting the shaking, deflection, and misalignment of the pressing components during movement, making the pressing components slide smoothly and run stably, and reducing the risk of mechanical friction and jamming during the adjustment process.

[0031] The present invention also discloses a bag making machine, including at least one pair of handle fixing devices for any of the above-mentioned bag making machines.

[0032] Among them, a pair of handle fixing devices are arranged opposite each other on both sides of the conveying component of the conveying substrate.

[0033] Alternatively, a pair of handle fixing devices are arranged at intervals on the same side of the conveying component along the transport direction of the substrate.

[0034] By adopting the above technical solution, and based on actual production process requirements, the two sets of handle fixing devices can be arranged opposite each other on both sides of the substrate conveying component, or they can be arranged at intervals on the same side of the conveying component along the substrate conveying direction. This flexible layout can adapt to the processing requirements of different bag types and handle arrangements. Furthermore, this bag-making machine, through the coordinated operation of multiple handle fixing devices, can simultaneously complete the pressing and fixing process of multiple handles, improving the processing capacity and production efficiency of the bag-making machine. At the same time, due to the structural advantages of this handle fixing device—synchronous pressing, buffer protection, and precise distance adjustment—the pressing force, fitting accuracy, and fixing consistency of each handle end are guaranteed.

[0035] The beneficial effects of this utility model are as follows:

[0036] This utility model discloses a handle fixing device for a bag making machine. The pressing assembly includes a pressing drive component, a mounting component, and a pair of pressing components. The pressing drive component is mounted on the frame of the bag making machine, and its output end is connected to the mounting component. The pair of pressing components are spaced apart from each other in a first direction on the side of the mounting component facing the substrate. The pair of pressing components are integrated into the same mounting component and driven by the pressing drive component. This allows the pair of pressing components to move synchronously along the pressing direction, avoiding the problem of asynchronous movement in existing separate fixing components. This ensures that the pressing force and pressing stroke at both ends of the handle remain uniform. At the same time, the common drive transmission structure allows the pair of pressing components to maintain similar wear and movement accuracy during long-term operation, reducing the probability of deviations in the fixing effect at both ends of the handle due to differences in component wear and movement errors. This ensures stable and secure adhesion and pressing quality between the two ends of the handle and the substrate. Attached Figure Description

[0037] Figure 1 A schematic diagram of the handle fixing device of the bag making machine provided in this embodiment of the utility model;

[0038] Figure 2 A partial structural diagram of the mounting components, a pair of pressing components, and the adjusting component of the handle fixing device of the bag making machine provided in this embodiment of the utility model;

[0039] Figure 3 A schematic diagram of a pair of bag-making machine handle fixing devices provided in an embodiment of this utility model, which are spaced apart on both sides of the substrate conveying component.

[0040] Explanation of reference numerals in the attached figures:

[0041] 10. Press component;

[0042] 100. Press-driven component;

[0043] 110. Press drive component; 111. Press drive motor; 120. Press transmission component; 121. Swing arm;

[0044] 200. Mounting component; 210. First mounting base; 220. Second mounting base; 230. Buffer component; 231. Buffer cylinder; 240. Buffer guide component; 241. Buffer guide rod;

[0045] 300. Pressing component;

[0046] 400. Press the guide component; 410. Press the guide rod;

[0047] 500. Adjustable pitch component; 510. Adjustable pitch drive component; 511. Adjustable pitch drive motor; 520. Adjustable pitch transmission component; 521. Transmission screw; 530. Adjustable pitch guide component; 531. Adjustable pitch guide rail;

[0048] X, first direction; Z, pressing direction. Detailed Implementation

[0049] As mentioned in the background section, the separate fixing components of the existing handle fixing device cannot guarantee the synchronization of their movements during operation. The two independently operating fixing components have different degrees of wear and motion errors during long-term operation, which further aggravates the deviation of the fixing effect at the two ends of the handle. This not only reduces the overall connection strength between the handle and the substrate, but also easily causes a decrease in the product yield of the bag making machine.

[0050] Therefore, this utility model provides a handle fixing device for a bag making machine, which integrates a pair of pressing components on the mounting component and drives them through a common pressing drive component, thereby keeping the pressing force on the two ends of the handle and the pressing stroke of the pair of pressing components uniform and consistent.

[0051] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0052] like Figure 1 As shown, this embodiment provides a handle fixing device for a bag making machine, including a pressing assembly 10. The pressing assembly 10 includes a pressing drive component 100, a mounting component 200, and a pair of pressing components 300. The pressing drive component 100 is mounted on the frame of the bag making machine, and its output end is connected to the mounting component 200. The pair of pressing components 300 are spaced apart from each other in a first direction X on the side of the mounting component 200 facing the substrate. The pressing drive component 100 drives the mounting component 200 and the pair of pressing components 300 to move synchronously in the pressing direction Z. Furthermore, the first direction X is perpendicular to the pressing direction Z.

[0053] It should be noted that the pair of pressing components 300 of the pressing assembly 10 are used to press and fix a pair of ends of the handle. These components can be block structures with pressing surfaces, the size and shape of which are adapted to the ends of the handle. On the frame of the bag-making machine, a receiving component is also provided opposite to the pair of pressing components 300. The ends of the handle and the corresponding fixing positions on the substrate are stacked on the receiving component. The pair of pressing components 300 press the ends of the handle and the substrate, thereby connecting the ends of the handle to the corresponding fixing positions on the substrate. Specifically, when both the substrate and the handle are made of non-woven fabric, the receiving component can be a heat-sealing component. When the pressing components 300 press, high-temperature heating is used to heat the ends of the handle to the substrate. Alternatively, when either the substrate or the handle is made of paper, adhesive can be pre-applied to the fixing position on the substrate or the ends of the handle. When the pressing components 300 press, the adhesive fully contacts the ends of the handle and the substrate, thereby bonding the ends of the handle to the substrate. This embodiment is not the only limitation in this regard.

[0054] In this embodiment, a pair of pressing components 300 are integrated into the same mounting component 200 and driven uniformly by the pressing drive component 100. This allows the pair of pressing components 300 to move synchronously along the pressing direction Z, avoiding the problem of asynchronous movement of existing separate fixing components. At the same time, the common drive transmission structure enables the pair of pressing components 300 to maintain similar wear and motion accuracy during long-term operation, reducing the probability of deviations in the fixing effect at both ends of the handle due to differences in component wear and motion errors. This ensures stable adhesion and pressing quality between the two ends of the handle and the substrate, significantly improving the overall connection strength and bonding stability between the handle and the substrate, reducing problems such as weak adhesion and partial detachment of the handle, thereby improving the yield rate of the bag making machine, ensuring continuous and stable operation of the bag making process, and improving the processing quality of the bag making machine.

[0055] Specifically, the press drive component 100 includes a press drive component 110 and a press transmission component 120. One end of the press transmission component 120 is connected to the output end of the press drive component 110, and the other end is connected to the mounting component 200.

[0056] Furthermore, the handle fixing device also includes a pressing guide 400 extending along the pressing direction Z. One end of the pressing guide 400 is fixedly connected to the mounting component 200, and the other end is slidably mounted on the frame.

[0057] In this embodiment, the power of the pressing drive 110 is smoothly and accurately transmitted to the mounting component 200 through the pressing transmission component 120. The pressing guide 400 can limit and guide the pressing movement of the mounting component 200 and the pair of pressing components 300, restricting the mounting component 200 from shifting, shaking or tilting during the movement, reducing positional deviation and mechanical jamming during the movement, further improving the smoothness and alignment accuracy of the pressing action, reducing abnormal wear between components, and ensuring the pressing consistency of the pair of pressing components 300.

[0058] More specifically, such as Figure 1 As shown, the pressing drive component 110 is configured as a pressing drive motor 111, and the pressing transmission component 120 is configured as a rocker arm 121. One end of the rocker arm 121 is eccentrically connected to the output end of the pressing drive motor 111, and the other end is hinged to the corresponding side of the mounting component 200. The rotational motion of the pressing drive motor 111 can be converted into the reciprocating swing of the rocker arm 121. Then, through the hinged cooperation between the rocker arm 121 and the mounting component 200, the mounting component 200 and the pressing component 300 can reciprocate in a straight line along the pressing direction Z. This transmission structure is simple and compact, has efficient power transmission, and stable motion output rhythm, and can continuously provide a stable driving force for a pair of pressing components 300. Of course, in this embodiment, the pressing drive component 110 can also be replaced by a drive cylinder.

[0059] Furthermore, the pressing guide 400 includes a pair of pressing guide rods 410 spaced apart on both sides of the pressing transmission member 120 in the first direction X. These rods can provide symmetrical limiting guidance for the movement of the mounting member 200 from both sides, further offsetting the lateral force generated during the transmission of the swing arm 121, preventing the mounting member 200 from tilting or twisting, and keeping the pair of pressing members 300 in a stable pressing posture. Alternatively, the pressing guide 400 can also be configured as a pressing guide rail, a pressing guide groove, or other structures that can play a guiding role. This embodiment does not limit this to a single type.

[0060] Alternatively, the pressing component 300 and the pressing drive component 110 can be a pressing drive cylinder with a retractable output end, and the pressing transmission component 120 can be a push plate. The pressing drive cylinder is fixedly installed on the frame, and its output end is connected to one end of the push plate. The other end of the push plate is fixedly connected to the mounting component 200. When the output end of the pressing drive cylinder extends, it rigidly transmits the thrust downward through the push plate, driving the mounting component 200 and the pair of pressing components 300 to move downward along the pressing direction Z, thus completing the pressing and fitting of the handle end. When the output end of the pressing drive cylinder retracts, it pulls the push plate and the mounting component 200 upward to reset.

[0061] Alternatively, the pressing component 300 can be configured as a pressing drive motor 111, and the pressing transmission component 120 can include a cam and a transmission link. The cam is fixed to the output end of the servo motor, one end of the link is set to conform to the cam profile, and the other end is hinged to the mounting component 200. The pressing drive motor 111 drives the cam to rotate at a constant speed. There is a height difference in the outer periphery of the cam, and during the rotation, it continuously pushes or releases the transmission link. By utilizing the trajectory change of the cam profile, the rotational motion is converted into the reciprocating linear displacement of the link, and the link further drives the mounting component 200 to move up and down along the pressing direction Z. Therefore, this embodiment does not limit the specific structure of the pressing drive component 100.

[0062] In this embodiment, as Figure 2 As shown, the mounting component 200 includes a first mounting base 210, a second mounting base 220 and a buffer member 230 located between the first mounting base 210 and the second mounting base 220, which are spaced apart along the pressing direction Z. The side surface of the first mounting base 210 opposite to the second mounting base 220 is connected to the pressing drive component 100. A pair of pressing components 300 are provided on the side of the second mounting base 220 opposite to the first mounting base 210.

[0063] Furthermore, the buffer 230 can elastically extend and retract in the pressing direction Z. Specifically, it can be a spring that extends spirally in the pressing direction Z, or a hydraulic cylinder or pneumatic cylinder whose output end can extend and retract in the pressing direction Z.

[0064] In this embodiment, a flexible connection structure is formed by the first mounting base 210, the second mounting base 220 and the buffer member 230 that can elastically extend and retract along the pressing direction Z. The force output by the pressing drive component 100 is first transmitted to the first mounting base 210, and then buffered and transitioned by the buffer member 230 before acting on the second mounting base 220 and the pressing component 300. This can effectively buffer the hard impact generated at the moment of pressing contact, and avoid rigid collision between the pressing component 300 and the handle and the substrate. This can prevent problems such as substrate damage and handle deformation caused by excessive instantaneous pressure, and also reduce the vibration and noise generated by the reciprocating motion of the mechanism.

[0065] Meanwhile, the elastic stretching characteristics of the buffer 230 ensure that the pressing component 300 flexibly fits the workpiece surface, adapting to the slight thickness difference of the substrate, making the force on the handle end more gentle and uniform, and further improving the bonding effect of the handle end.

[0066] Specifically, the buffer component 230 includes a pair of buffer cylinders 231 spaced apart along the first direction X. Each buffer cylinder 231 is mounted on the first mounting base 210 and its telescopic end is connected to the second mounting base 220. The buffer cylinder 231 has a stable elastic buffer stroke and controllable buffer damping. Compared with ordinary elastic structures, the buffer cylinder 231 has a balanced buffer force and stronger pressure bearing capacity. It can accurately absorb the rigid impact force at the moment of pressing, flexibly release the instantaneous pressure, and prevent the pressing overload from damaging the base material and handle structure.

[0067] Furthermore, a buffer guide 240 extending along the pressing direction Z is provided between the first mounting base 210 and the second mounting base 220. The buffer guide 240 is configured as a pair of buffer guide rods 241 spaced apart along the first direction X. One end of each buffer guide rod 241 is fixedly connected to the first mounting base 210, and the other end is slidably disposed on the second mounting base 220. This can limit and guide the relative movement of the two sets of mounting bases when the buffer cylinder 231 is extending and retracting, avoiding the problem of skewness or jamming during the extension and retraction of the buffer cylinder 231, and counteracting the lateral force. Of course, the buffer guide 240 can also be configured as a buffer guide groove or a buffer guide rail, etc., and this embodiment does not specifically limit it.

[0068] Therefore, the mounting component 200 can also be configured as a single mounting plate structure, which only serves to integrate a pair of pressing components 300. This embodiment does not limit this to a single type.

[0069] Furthermore, in this embodiment, as Figure 2 As shown, the handle fixing device also includes an adjustable spacing component 500. A pair of pressing components 300 are positioned on the side of the mounting component 200 facing the substrate via the adjustable spacing component 500, with an adjustable spacing in the first direction X. This allows for precise adjustment of the relative distance between the pair of pressing components 300 according to the actual processing requirements of different bag sizes and handle dimensions, thus meeting the fixing processing needs of handles of various sizes and specifications. Furthermore, because the adjustable spacing component 500 is located on the mounting component 200, the synchronicity and uniform force of the pressing action of the pair of pressing components 300 can still be maintained after the spacing adjustment is completed.

[0070] Specifically, the distance adjustment component 500 and the pair of pressing components 300 are both connected by a drive, and the pair of pressing components 300 can move synchronously towards or away from each other along the first direction X, so as to realize the synchronous symmetrical adjustment of the distance between them. Compared with the method of adjusting one side separately, it can effectively ensure that the pair of pressing components 300 always maintain a centered symmetrical layout, avoid the problem of position offset and alignment deviation after adjustment, and ensure that the pressing positions at both ends of the handle correspond accurately under different distances.

[0071] More specifically, the pitch adjustment component 500 includes a pitch adjustment drive component 510 and a pitch adjustment transmission component 520. One end of the pitch adjustment transmission component 520 is connected to the pitch adjustment drive component 510, and the other end is connected to a pair of pressing components 300 respectively. The pitch adjustment drive component 510 provides stable power, and the pitch adjustment transmission component 520 transmits power synchronously to the pair of pressing components 300 respectively, so as to reliably realize the symmetrical synchronous pitch adjustment action of the pair of pressing components 300. This ensures that the travel and adjustment rate of the pair of pressing components 300 are completely consistent, avoiding the alignment deviation and uneven spacing problems caused by manual individual adjustment.

[0072] In this embodiment, as Figure 1 As shown, the adjusting component 500 also includes an adjusting guide 530, which is an adjusting guide rail 531 that is disposed on the side of the mounting component 200 facing the substrate and extends along the first direction X. A pair of pressing components 300 are movably disposed on the adjusting guide rail 531.

[0073] The pitch adjustment drive 510 is configured as a pitch adjustment drive motor 511, and the pitch adjustment transmission 520 is configured as a transmission screw 521 extending along the first direction X. A pair of threaded segments are spaced apart on the outer periphery of the transmission screw 521 in the first direction X. The two threaded segments have opposite directions of rotation and are respectively connected to the corresponding threaded holes of a pair of pressing components 300.

[0074] Furthermore, the output end of the adjustable pitch drive motor 511 is connected to one end of the transmission lead screw 521 via a transmission belt assembly.

[0075] In this embodiment, the adjustable-pitch drive motor 511 is used as the power source, and the power is smoothly transmitted through the transmission belt assembly, driving the transmission screw 521 to operate stably. By utilizing the two threaded sections with opposite directions on the screw, a pair of pressing components 300 can be synchronously driven to move precisely in opposite directions along the first direction X when the screw rotates. This has the advantages of good adjustment synchronization and high positioning accuracy. At the same time, the adjustable-pitch guide rail 531 extending along the first direction X serves as the adjustable-pitch guide 530, providing linear limit and support for the sliding adjustment of each pressing component 300. This limits the shaking, deflection and misalignment of the pressing components 300 during movement, making the pressing components 300 slide smoothly and run stably, reducing the risk of mechanical friction and jamming during the adjustment process.

[0076] Of course, the pitch adjustment drive 510 can be configured as a bidirectional pitch adjustment cylinder, and the pitch adjustment transmission 520 can be configured as a symmetrically hinged linkage swing arm assembly. The bidirectional pitch adjustment cylinder is fixedly mounted on the mounting component 200, and the two ends of the bidirectional pitch adjustment cylinder are respectively hinged to the two sides of the linkage swing arm. The ends of the two sides of the linkage swing arm are respectively connected to a pair of pressing components 300. When the bidirectional pitch adjustment cylinder extends or retracts, the two sides of the pressing components 300 are pushed and pulled synchronously by the two sides of the linkage swing arm, causing the pair of pressing components 300 to synchronously converge towards each other or move away from each other along the first direction X, thereby achieving symmetrical pitch adjustment.

[0077] Alternatively, the pitch-adjusting drive component 510 can be configured as a pitch-adjusting servo motor, and the pitch-adjusting transmission component 520 can be configured as a synchronous pulley set and an annular synchronous belt. The synchronous belt is mounted around the outside of the synchronous pulley set along the first direction X, and the two sides of the synchronous belt form opposite motion strokes. A pair of pressing components 300 are respectively fixedly connected to the two opposite belt sides of the synchronous belt. The pitch-adjusting servo motor drives the synchronous pulley set to rotate, so that the synchronous belt continuously circulates. Utilizing the characteristic that the upper and lower sections of the belt move in opposite directions, the pair of pressing components 300 are pulled to slide synchronously towards or away from each other.

[0078] Of course, the adjusting component 500 can also be equipped with a pair of adjusting drive components 510, such as a pair of linear motors or drive cylinders, which are respectively connected to the pair of pressing components 300 for transmission. Each can adjust the position of the corresponding pressing component 300 in the first direction X, thereby changing the distance between the pair of pressing components 300 in the first direction X.

[0079] This embodiment also discloses a bag making machine, including at least one pair of handle fixing devices for any of the above-mentioned bag making machines.

[0080] In this embodiment, based on actual production process requirements, such as Figure 3 As shown, two sets of handle fixing devices can be arranged opposite each other on both sides of the substrate conveying component, or they can be arranged at intervals on the same side of the conveying component along the substrate conveying direction. This flexible layout can adapt to the processing requirements of different bag types and handle arrangements. Furthermore, this bag-making machine, through the coordinated operation of multiple handle fixing devices, can simultaneously complete the pressing and fixing process of multiple handles, improving the processing capacity and production efficiency of the bag-making machine. At the same time, due to the structural advantages of this handle fixing device—synchronous pressing, buffer protection, and precise distance adjustment—the pressing force, fitting accuracy, and fixing consistency of each handle end are guaranteed.

[0081] It should be noted that, in addition to the specific embodiments described above, those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. Although the description of this utility model is presented in conjunction with preferred embodiments, this does not mean that the features of this utility model are limited to that embodiment. On the contrary, the purpose of describing the utility model in conjunction with the embodiments is to cover other options or modifications that may be derived based on the claims of this utility model. In order to provide a deep understanding of this utility model, many specific details are included in the above description, and this utility model may also be implemented without using these details. In addition, in order to avoid confusion or obscuring the focus of this utility model, some specific details will be omitted in the description. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of this utility model can be combined with each other.

[0082] It should be noted that in this specification, similar reference numerals and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0083] In the description of this embodiment, it should be noted that the terms "upper", "lower", "inner", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the utility model product is usually placed in during use. They are only for the convenience of describing the 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. Therefore, they should not be construed as limitations on the utility model.

[0084] The terms “first”, “second”, etc., are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0085] In the description of this embodiment, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set up," "connected," and "linked" 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 embodiment based on the specific circumstances.

[0086] Although the present invention has been illustrated and described with reference to certain preferred embodiments, those skilled in the art should understand that the above description is a further detailed explanation of the present invention in conjunction with specific embodiments, and should not be construed as limiting the specific implementation of the present invention to these descriptions. Those skilled in the art can make various changes in form and detail, including some simple deductions or substitutions, without departing from the spirit and scope of the present invention.

Claims

1. A handle fixing device for a bag making machine, characterized in that, include The pressing assembly includes a pressing drive component, a mounting component, and a pair of pressing components. The pressing drive component is mounted on the frame of the bag making machine. The output end of the pressing drive component is connected to the mounting component. The pair of pressing components are spaced apart from each other in a first direction on the side of the mounting component facing the substrate. in The pressing drive component drives the mounting component and, in conjunction with the pair of pressing components, moves synchronously in the pressing direction; and The first direction is perpendicular to the pressing direction.

2. The handle fixing device for a bag-making machine as described in claim 1, characterized in that, The pressing drive component includes a pressing drive element and a pressing transmission element. One end of the pressing transmission element is connected to the output end of the pressing drive element, and the other end is connected to the mounting component. The handle fixing device also includes a pressing guide extending along the pressing direction, one end of which is fixedly connected to the mounting component, and the other end is slidably disposed on the frame.

3. The handle fixing device for a bag-making machine as described in claim 2, characterized in that, The pressing drive component is configured as a pressing drive motor, and the pressing transmission component is configured as a rocker arm. One end of the rocker arm is eccentrically connected to the output end of the pressing drive motor, and the other end is hinged to the corresponding side of the mounting component. The pressing guide includes a pair of pressing guide rods spaced apart from each other on both sides of the pressing transmission member in the first direction.

4. The handle fixing device of the bag making machine as described in any one of claims 1 to 3, characterized in that, The mounting components include a first mounting seat, a second mounting seat, and a buffer member located between the first and second mounting seats, spaced apart along the pressing direction. The surface of the first mounting seat facing away from the second mounting seat is connected to the pressing drive component, and the pair of pressing components are disposed on the side of the second mounting seat facing away from the first mounting seat. The buffer can elastically expand and contract in the pressing direction.

5. The handle fixing device for a bag-making machine as described in claim 4, characterized in that, The buffer includes a pair of buffer cylinders spaced apart along the first direction, each buffer cylinder being disposed on the first mounting base and having its telescopic end connected to the second mounting base; and A buffer guide extending along the pressing direction is also provided between the first mounting base and the second mounting base. The buffer guide is configured as a pair of buffer guide rods spaced apart along the first direction. One end of each buffer guide rod is fixedly connected to the first mounting base, and the other end is slidably disposed on the second mounting base.

6. The handle fixing device of the bag making machine as described in any one of claims 1 to 3, characterized in that, The handle fixing device further includes an adjusting component; wherein The pair of pressing components are disposed on the side of the mounting component facing the substrate via the adjustable spacing component, and the spacing in the first direction is adjustable.

7. The handle fixing device for a bag-making machine as described in claim 6, characterized in that, The adjusting component and the pair of pressing components are both connected by a transmission, and can be linked to move synchronously towards or away from each other along the first direction.

8. The handle fixing device for a bag-making machine as described in claim 7, characterized in that, The adjusting component includes an adjusting drive and an adjusting transmission component. One end of the adjusting transmission component is connected to the adjusting drive, and the other end is connected to the pair of pressing components respectively.

9. The handle fixing device for a bag-making machine as described in claim 8, characterized in that, The adjusting component further includes an adjusting guide, which is an adjusting guide rail disposed on the side of the mounting component facing the substrate and extending along the first direction, and the pair of pressing components are movably disposed on the adjusting guide rail; The pitch-adjusting drive component is configured as a pitch-adjusting drive motor, and the pitch-adjusting transmission component is configured as a transmission lead screw extending along the first direction. A pair of threaded segments are spaced apart on the outer circumference of the transmission lead screw in the first direction. The two pairs of threaded segments have opposite directions of rotation and are respectively connected to the corresponding threaded holes of the two pressing components. The output end of the adjustable-pitch drive motor is connected to one end of the transmission lead screw via a transmission belt assembly.

10. A bag-making machine, characterized in that, Includes at least one pair of handle fixing devices for the bag making machine as described in any one of claims 1 to 9; in A pair of the aforementioned handle fixing devices are disposed opposite to each other on both sides of the conveying component that conveys the substrate; or A pair of the handle fixing devices are arranged at intervals on the same side of the conveying component along the transport direction of the substrate.

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