Heat-sealing bag arranging mechanism

Abstract

The utility model relates to a heat-sealing bag arranging mechanism which comprises two groups of follow-up plates which are driven by a motor assembly to be close to each other or away from each other in the transverse direction, the lower ends of the follow-up plates are fixedly connected with bag arranging claws, the bag arranging claws comprise transverse position adjusting plates connected with the follow-up plates, the lower ends of the transverse position adjusting plates are connected with vertical position adjusting plates, and the vertical position adjusting plates are fixedly connected with the follow-up plates. The side edge of the vertical position adjusting plate is connected with a longitudinal position adjusting plate, the longitudinal position adjusting plate is in an inverted L shape, and the ends of the longitudinal position adjusting plate are arc chamfers so as to abut against the folded edges on the two sides of the center joint of the packaging bag. The centering assembly is arranged at the heat-sealing output end in the longitudinal conveying direction of the packaging bag, the applicability of the heat-sealing bag arranging mechanism is enhanced, meanwhile, the folding depth of a center joint can be controlled, and the control force on deformation of a bag opening is greatly enhanced.

Description

Technical Field

[0001] The utility model relates to a heat-sealing bag sorting mechanism. Background Art

[0002] From the current market perspective, the demand for aesthetics of vacuum secondary packaging is still increasing, and the arrangement of the mouth of the accordion packaging bag by packaging equipment is a major focus. Looking at the development history of bag sorting, from the initial side blowing, to the simple spring lever, to the bionic action completed by the servo motor and pneumatic fingers, they are all different explorations of bag sorting methods. At the same time, the significant increase in the demand for equipment packaging speed also determines that the bag sorting action must be simple, fast and effective. What's more, the styles of packaging bags are becoming more and more diverse, and the characteristics and distribution of their main and secondary materials are different, which also poses greater challenges to the bag sorting mechanism.

[0003] Currently, there is a public application for a bag sorting and heat sealing mechanism - CN216035522U, which can meet the needs of heat sealing and folding accordion bag type packaging bags by sorting and heat sealing the packaging bags through an auxiliary bag sorting rod, but it only top-joins the middle seam, and has insufficient size, a single position, and insufficient control over bag mouth deformation and applicability. Utility Model Content

[0004] In view of the deficiencies in the prior art, the technical problem to be solved by the utility model is to provide a heat-sealing bag-sorting mechanism which is not only structurally reasonable but also ensures the control force on the bag mouth deformation.

[0005] In order to solve the above technical problems, the technical solution of the utility model is: a heat-sealing bag sorting mechanism, including two groups of follower plates driven by a motor assembly to move toward or away from each other in the horizontal direction, the lower ends of the follower plates are fixedly connected to bag sorting claws, the bag sorting claws include a transverse adjustment plate connected to the follower plate, the lower end of the transverse adjustment plate is connected to a vertical adjustment plate, the side of the vertical adjustment plate is connected to a longitudinal adjustment plate, the longitudinal adjustment plate is in an inverted L shape, and the ends of the longitudinal adjustment plate are all chamfered with arcs to top-connect with the folded edges on both sides of the center seam of the packaging bag; a centering component is arranged at the heat-sealing output end along the longitudinal conveying direction of the packaging bag.

[0006] Furthermore, the longitudinal end of the longitudinal adjustment plate, the transverse end of the transverse adjustment plate and the vertically extending vertical adjustment plate are all provided with strip holes that are convenient for adjustment along their extension direction, and are all connected and fixed by bolts.

[0007] Furthermore, the motor assembly includes a bag sorting motor, a driving pulley, a driven pulley, a synchronous belt and a fixed frame. The synchronous belt is wound around the driving pulley and the driven pulley, the motor drives the driving pulley to rotate, the top of the follower plate is fixedly connected to both sides of the synchronous belt, and the bag sorting motor is fixedly connected to the fixed frame.

[0008] Furthermore, a heat sealing assembly is fixedly connected to the back side of the fixed frame, and the heat sealing assembly includes a main board connected to the fixed frame, and the main board drives the upper heat sealing plate and the lower heat sealing plate to slide vertically closer or farther away through a linkage assembly, and the linkage assembly includes linkage handles that are laterally symmetrically arranged on the main board, and the centers of the linkage handles are rotatably connected to the main board, and the inner and outer sides of the linkage handles are respectively hinged with an upper linkage rod and a lower linkage rod, the lower ends of the upper linkage rods are connected to the upper heat sealing plate, and the lower linkage rods are connected to the lower heat sealing plate, and a linkage cylinder is fixedly provided on the main board between the two linkage handles, and the bottom of the piston end of the linkage cylinder is connected to the upper heat sealing plate.

[0009] Furthermore, the back side of the main board is slidably connected to a vertical slide rail on an adjustment plate via a slider, and a ball screw pair is fixed on the adjustment plate and connected to the main board via a screw nut for upgraded adjustment.

[0010] Furthermore, the fixed frame is fixedly provided with a transverse slide rail along its transverse extension direction, and the transverse adjustment plates are fixedly connected with transverse sliders and are slidably connected to the transverse slide rail via the transverse sliders.

[0011] Furthermore, the fixed frame is provided with induction switches at intervals along its lateral extension direction, and the induction switches are respectively an inner limit switch, an origin switch and an outer limit switch from the inside to the outside, and a position sensing strip docking with the induction switch is fixedly connected to the upper end of one of the bag handling claws.

[0012] Furthermore, the centering component includes a discharge conveyor belt, and the frames on both sides of the discharge conveyor belt are supported by top plates via vertical support rods, the lower end of the top plate is fixedly connected to an open clamping cylinder, and the lateral ends of the open clamping cylinder are connected to clamping plates driven by piston rods to move horizontally toward or away from each other, and the bottom ends of the clamping plates are fixedly connected to aligning square tubes.

[0013] Compared with the prior art, the utility model has the following beneficial effects: by splitting the bag sorting claws and setting the strip holes, it can be adaptively adjusted according to different packaging bags, and its applicability is enhanced; at the same time, the setting of the longitudinal adjustment plate can control the position of the oblique crease, and can still control the folding depth of the center seam, thereby greatly enhancing the control over the deformation of the bag mouth.

[0014] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific implementation methods. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of an embodiment of the utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the bag sorting assembly in the embodiment of the utility model;

[0017] Figure 3This is a schematic diagram of the structure of the heat sealing component in the embodiment of the utility model;

[0018] Figure 4 It is a schematic diagram of the structure of the centering component in the embodiment of the utility model;

[0019] Figure 5 This is a schematic diagram of the action sequence of the working state in the embodiment of the utility model;

[0020] Figure 6 It is a schematic diagram of the folding state of the packaging bag in the embodiment of the utility model. DETAILED DESCRIPTION

[0021] In order to make the above features and advantages of the present invention more obvious and easy to understand, embodiments are given below with reference to the accompanying drawings for detailed description as follows.

[0022] like Figures 1 to 6 As shown, a heat-sealing bag sorting mechanism comprises two sets of follower plates B1 driven by a motor assembly to move toward or away from each other laterally, the lower ends of the follower plates are fixedly connected with bag sorting claws B2, the bag sorting claws comprise a transverse adjustment plate B3 connected to the follower plates, the lower ends of the transverse adjustment plates are connected with vertical adjustment plates B4, the sides of the vertical adjustment plates are connected with longitudinal adjustment plates B5, the longitudinal adjustment plates are in an inverted L shape, the ends of the longitudinal adjustment plates are all arc chamfered B6 to be connected to the folded edges on both sides of the center seam of the packaging bag; a centering component B7 is arranged at the heat-sealing output end along the longitudinal conveying direction of the packaging bag, and the motor assembly and the bag sorting claws are combined to form a bag sorting component B37.

[0023] In the embodiment of the utility model, the longitudinal end of the longitudinal adjustment plate, the transverse end of the transverse adjustment plate and the vertically extending vertical adjustment plate are all provided with strip holes B8 that are convenient for adjustment along their extension direction, and are all connected and fixed by bolts.

[0024] In an embodiment of the utility model, the motor assembly includes a bag sorting motor B9, a driving pulley B10, a driven pulley B11, a synchronous belt B12 and a fixed frame B13. The synchronous belt is wound around the driving pulley and the driven pulley. The motor drives the driving pulley to rotate. The top of the follower plate is fixedly connected to both sides of the synchronous belt, and the bag sorting motor is fixedly connected to the fixed frame.

[0025] In an embodiment of the utility model, a heat sealing component B14 is fixedly connected to the back side of the fixed frame, and the heat sealing component includes a main board B15 connected to the fixed frame. The main board drives the upper heat sealing plate B38 and the lower heat sealing plate B39 to slide vertically closer or farther through the linkage component B16. The linkage component includes a linkage handle B17 that is laterally symmetrically arranged on the main board. The center of the linkage handle is rotatably connected to the main board. The inner and outer sides of the linkage handle are respectively hinged with an upper linkage rod B18 and a lower linkage rod B19. The lower ends of the upper linkage rods are connected to the upper heat sealing plate, and the lower linkage rods are connected to the lower heat sealing plate. A linkage cylinder B20 is fixedly provided on the main board between the two linkage handles, and the bottom of the piston end of the linkage cylinder is connected to the upper heat sealing plate.

[0026] In the embodiment of the utility model, the back side of the main board is slidably connected to a vertical slide rail B22 on an adjustment plate via a slider B21. A ball screw pair B23 is fixed on the adjustment plate and connected to the main board via a screw nut for upgraded adjustment.

[0027] In the embodiment of the utility model, the fixed frame is fixedly provided with a transverse slide rail B24 along its transverse extension direction, and the transverse adjustment plates are fixedly connected with transverse sliders B25 and are slidably connected to the transverse slide rail via the transverse sliders.

[0028] In the embodiment of the utility model, the fixed frame is provided with sensing switches 26 at intervals along its lateral extension direction, and the sensing switches are respectively an inner limit switch B27, an origin switch B28 and an outer limit switch B29 from the inside to the outside, and a position sensing strip B30 docking with the sensing switch is fixedly connected to the upper end of one of the bag sorting claws.

[0029] In the embodiment of the utility model, the centering component includes a discharge conveyor belt B31, and the frames on both sides of the discharge conveyor belt are supported by top plates B33 through vertical support rods B32. The lower end of the top plate is fixedly connected to an open clamp cylinder B34, and the lateral ends of the open clamp cylinder are connected to clamp plates B35 driven by piston rods to move horizontally toward or away from each other, and the bottom ends of the clamp plates are fixedly connected to aligning square tubes B36.

[0030] The functions realized by this mechanism are heat seal height adjustment, bag opening arrangement and heat sealing. The height adjustment is powered by the lifting motor at the top of the ball screw pair, guided by the guide rail slider, and driven by the screw nut. Bag opening closing requires the upper and lower heat sealing plates to move symmetrically relative to the expected horizontal plane, so a pair of linkage handles are used to ensure the symmetry of their movements and the consistency of movement speed. It is powered by a cylinder and guided by the guide rail slider.

[0031] The centering component mainly realizes the centering positioning and fixing of the material packaging bag, and helps the material to accurately stop at the predetermined processing position, playing a role similar to a damper. The position where the material stops on the material handling platform directly affects the position where the heat-sealed part falls on the packaging bag, and also directly determines whether the bag sorting claw can apply the same deformation to the accordion edges on both sides. The part of this mechanism that directly contacts the material is a smooth stainless steel square tube. The thinner square tube can adapt to different material thicknesses. The centering action is powered by the open clamp cylinder.

[0032] The bag sorting part is connected to the main board of the heat sealing component, and rises and falls synchronously with the heat sealing component to ensure that it is synchronously corresponding to the heat sealing level. The bag sorting claw needs to exert an impact on both sides of the packaging bag to the same extent. For this purpose, a synchronous belt is used as a transmission, and the guide rail slider guides its movement. The power is selected as a servo motor, and the flexible bag sorting claw movement can fully cooperate with the bag opening to adapt to packaging bags with different characteristics.

[0033] The bag sorting action is completed by the cooperation of the bag sorting claws and the upper and lower heat sealing plates. Figure 5 As shown. After the bag-handling claws cause the accordion edge to initially deform, the heat-sealing plate begins to contact the upper and lower edges of the packaging bag. At this time, the bag-handling claws will choose to stay or withdraw immediately depending on the situation. Generally, a harder bag can ensure that the accordion edge is neatly folded and completed under the guidance of the initial deformation, while a softer bag requires the bag-handling claws to stay for support.

[0034] like Figure 6 The figure shows the deformation of the folded mouth of an accordion bag. It can be seen that in addition to the center seam that existed at the beginning, two new (oblique) creases (bold parts) are formed during the deformation. Common bag sorting mechanisms press the center seam to induce initial deformation. This method cannot effectively control the shape of the deformation collapse angle, and ultimately leads to uncontrollable sealing effect. The points acting symmetrically on both sides of the center seam cooperate with the longitudinal adjustment plate to control the position of the (oblique) crease formation and the folding depth of the center seam. The control over the deformation of the bag mouth is greatly enhanced.

[0035] The utility model is not limited to the above-mentioned best implementation mode. Anyone can derive other forms of heat-sealing bag-arranging mechanisms under the inspiration of the utility model. All equivalent changes and modifications made according to the scope of the patent application of the utility model shall fall within the scope of the utility model.

Claims

1. A heat-sealing bag sorting mechanism, characterized in that: It comprises two groups of follower plates which are driven by a motor assembly to move toward or away from each other laterally, the lower ends of the follower plates are fixedly connected with bag sorting claws, the bag sorting claws comprise a transverse adjustment plate connected with the follower plate, the lower ends of the transverse adjustment plates are connected with a vertical adjustment plate, the sides of the vertical adjustment plates are connected with longitudinal adjustment plates, the longitudinal adjustment plates are in an inverted L shape, the ends of the longitudinal adjustment plates are all chamfered with arcs to be connected with the folded edges on both sides of the center seam of the packaging bag; a centering assembly is arranged at the heat sealing output end along the longitudinal conveying direction of the packaging bag.

2. A heat-sealing bag-arranging mechanism according to claim 1, characterized in that: The longitudinal end of the longitudinal adjustment plate, the transverse end of the transverse adjustment plate and the vertically extending vertical adjustment plate are all provided with strip holes that are conducive to adjustment along their extending directions, and are all connected and fixed by bolts.

3. A heat-sealing bag-arranging mechanism according to claim 2, characterized in that: The motor assembly includes a bag sorting motor, a driving pulley, a driven pulley, a synchronous belt and a fixed frame. The synchronous belt is wound around the driving pulley and the driven pulley. The motor drives the driving pulley to rotate. The top of the follower plate is fixedly connected to both sides of the synchronous belt, and the bag sorting motor is fixedly connected to the fixed frame.

4. The heat-sealing bag-arranging mechanism according to claim 3, characterized in that: A heat sealing assembly is fixedly connected to the back side of the fixed frame, and the heat sealing assembly includes a main board connected to the fixed frame. The main board drives the upper heat sealing plate and the lower heat sealing plate to slide vertically closer or farther away through a linkage assembly. The linkage assembly includes linkage handles that are laterally symmetrically arranged on the main board, and the centers of the linkage handles are rotatably connected to the main board. An upper linkage rod and a lower linkage rod are hinged on the inner and outer sides of the linkage handles, respectively. The lower ends of the upper linkage rods are connected to the upper heat sealing plate, and the lower linkage rods are connected to the lower heat sealing plate. A linkage cylinder is fixedly provided on the main board between the two linkage handles, and the bottom of the piston end of the linkage cylinder is connected to the upper heat sealing plate.

5. The heat-sealing bag-arranging mechanism according to claim 4, characterized in that: The back side of the main board is slidably connected to a vertical slide rail on an adjustment plate via a slider; a ball screw pair is fixedly arranged on the adjustment plate and is connected to the main board via a screw nut for upgrading and adjustment.

6. The heat-sealing bag-arranging mechanism according to claim 3, characterized in that: The fixed frame is fixedly provided with a transverse slide rail along its transverse extension direction, and the transverse adjustment plates are all fixedly connected with transverse sliders and are slidably connected with the transverse slide rail via the transverse sliders.

7. The heat-sealing bag-arranging mechanism according to claim 3, characterized in that: The fixed frame is provided with induction switches at intervals along its transverse extension direction. The induction switches are respectively an inner limit switch, an origin switch and an outer limit switch from the inside to the outside. The upper end of one of the bag handling claws is fixedly connected to a position sensing strip docking with the induction switch.

8. The heat-sealing bag-arranging mechanism according to claim 1, characterized in that: The centering component includes a discharge conveyor belt, and the frames on both sides of the discharge conveyor belt are supported by top plates via vertical support rods. The lower end of the top plate is fixedly connected to an open clamping cylinder, and the lateral ends of the open clamping cylinder are connected to clamping plates driven by piston rods to move horizontally toward or away from each other, and the bottom ends of the clamping plates are fixedly connected to aligning square tubes.

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