A fully automatic vertical vacuum packaging bag clamping conveyor

Abstract

The present invention discloses a fully automatic vertical vacuum packaging bag clamping conveyor, which includes a clamping frame, on which two rotating bag clamping mechanisms are connected via a width adjustment mechanism, and the two rotating bag clamping mechanisms are arranged oppositely, spaced apart and in parallel to form a vacuum packaging bag detection channel. The rotating bag clamping mechanism includes a clamping belt rotating support frame, and an active rotating wheel and a driven rotating wheel are respectively provided at both ends in the length direction of the support frame. The clamping belt is tightly sheathed around the active rotating wheel and the driven rotating wheel, and the active rotating wheel is connected to the driving shaft through a pair of bevel gears with a 90-degree rotation angle. When the vacuum packaging bag passes through, the clamping plates of the two rotating bag clamping mechanisms are forced to squeeze the spring backward, and the clamping plates hold the qualified vacuum packaging bag through the rebound force of the spring. The present invention arranges a section of elastic rotating clamping plate on the transmission line, so that vacuum packaging with insufficient vacuum degree automatically falls and is rejected when passing through, thereby realizing automatic screening without stopping the machine and improving transmission efficiency.

Description

Technical Field

[0001] The invention relates to a full-automatic vertical vacuum packaging bag clamping conveyor. Background Art

[0002] After vacuum packaging, granular materials are typically formed into dihedral or hexahedral shapes. However, during the production process, these vacuum packages can leak or lack vacuum due to issues like seal quality, bag quality, or bumps during processing, leading to substandard secondary packaging or finished products. The previous method relied on manual inspection and removal from the assembly line, which was time-consuming and left some packages with insufficient vacuum undetected. To increase automation, pressure sensor probes were used for automatic identification, followed by push-outs. However, this required the conveyor to pause while the pressure sensor probe pressed down, impacting transport efficiency. Therefore, improving the existing soft-package inspection and rejection process, which lacked rapid and accurate detection and rejection, was a challenge that needed to be addressed. Summary of the Invention

[0003] The purpose of the present invention is to provide a fully automatic vertical vacuum packaging bag clamping conveyor. By arranging a section of elastic rotating clamping plate on the transmission line, vacuum packaging with air leakage or insufficient vacuum degree will automatically fall and be rejected when passing through, while qualified vacuum packaging will be clamped by the rotating clamping plate when passing through, realizing automatic screening without stopping the machine.

[0004] In order to achieve the above object, the technical solution of the present invention is:

[0005] A fully automatic vertical vacuum packaging bag clamping conveyor is placed on a vacuum packaging bag transmission line, including a clamping frame, wherein: two rotating bag clamping mechanisms are connected to the clamping frame through a width adjustment mechanism, and the two rotating bag clamping mechanisms are arranged oppositely, spaced apart, and parallel to form a vacuum packaging bag detection channel. The width adjustment mechanism can adjust the spacing between the two rotating bag clamping mechanisms. The rotating bag clamping mechanism includes a clamping belt rotating support frame, and a driving rotating wheel and a driven rotating wheel are respectively provided at both ends of the support frame in the length direction. The clamping belt is tightly wrapped around the driving rotating wheel and the driven rotating wheel. The driving rotating wheel is connected to the driving shaft through a pair of bevel gears with a 90-degree rotation angle. A driving shaft The driving motor drives the driving shaft to rotate, and then the active rotating wheel drives the clamping belt to rotate around the active rotating wheel and the driven rotating wheel. A spline groove is provided on the driving shaft, and the spline groove is used to toggle the bevel gear to rotate. When adjusting the distance between the two rotating bag clamping mechanisms, the bevel gear on the driving shaft can slide along the spline groove. A clamping plate is provided on the rear side of the clamping belt, and the clamping plate is supported on the rear side of the clamping belt by a spring against the clamping belt. When the vacuum packaging bag passes through, the clamping plates of the two rotating bag clamping mechanisms are forced to squeeze the spring backward, and the clamping plates hold the qualified vacuum packaging bag through the rebound force of the spring. The qualified vacuum packaging bag passes through the vacuum packaging bag detection channel as the clamping belt rotates.

[0006] A further solution is that the front and rear ends of the clamping plate are arranged as outwardly flared inclined surfaces.

[0007] The solution is further as follows: the width adjustment mechanism includes two cross beams, which are arranged parallel to each other at the upper end of the clamping frame and across the vacuum packaging bag transmission line. Slide rails are respectively provided on the lower end surfaces of the two cross beams, and sliders are respectively provided on the front and rear sides of the slide rails. The rotating bag clamping mechanism is connected and fixed to the slider on one side of the slide rails at the lower ends of the two cross beams and can be slidably suspended on the two cross beams through the sliders. Threaded through holes are provided on the sliders, and the threaded through holes of the two sliders on the front and rear sides of the slide rails at the lower ends of the beams are positive and negative threaded through holes. An adjusting rod containing positive and negative threads is screwed into the positive and negative threaded through holes of the two sliders. A rotating wheel is provided at one end of the adjusting rod, and an adjusting motor is connected to the rotating wheels of the two adjusting rods under the two cross beams through a belt. By synchronously rotating the two adjusting rods, the positive and negative threads of the two adjusting rods drive the two rotating bag clamping mechanisms to adjust the spacing.

[0008] The solution is further as follows: an inductive scale is provided on the side wall of the beam, and an inductive sensor is provided on the slider. When the slider moves and adjusts, the interval distance is determined by reading the inductive scale by the inductive sensor provided on the slider.

[0009] A further solution is that the belt is connected to the rotating wheels of the two adjusting rods through two tensioning wheels, one of which is an adjustable tensioning wheel.

[0010] A further solution is: the driving motor drives the driving shaft to rotate through a toothed belt and a toothed wheel.

[0011] The solution is further as follows: the bevel gear on the driving shaft is fixedly connected to the clamping belt rotating support frame through a bearing. When the interval between the two rotating bag clamping mechanisms is adjusted, the moving clamping belt rotating support frame drives the bevel gear on the driving shaft to slide along the spline groove through the bearing.

[0012] The beneficial effect of the present invention is that by arranging a section of elastic rotating splint on the transmission line, vacuum packages with air leakage or insufficient vacuum degree will automatically fall and be rejected when passing through, while qualified vacuum packages will be clamped by the rotating splint and sent to the next process when passing through, realizing automatic screening without stopping the machine and improving transmission efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] FIG1 is an axonometric diagram of the overall structure of the present invention;

[0014] Figure 2 It is a schematic diagram of the top structure of the present invention;

[0015] Figure 3 This is a schematic diagram of the structure of the present invention when the bottom plate of the rotating support frame with the clamping belt is removed;

[0016] Figure 4 It is a schematic diagram of the transmission structure of the splint of the present invention;

[0017] Figure 5 This is a schematic diagram of the structure of the inlet side of the packaging bag of the present invention;

[0018] Figure 6 This is a schematic diagram of the structure of the packaging bag outlet side of the present invention;

[0019] Figure 7 This is a structural diagram of the relationship between the bevel gear and the clamping belt rotation support frame of the present invention;

[0020] Figure 8 It is a schematic diagram of the present invention with a packaging bag passing through. DETAILED DESCRIPTION

[0021] A fully automatic vertical vacuum packaging bag clamping conveyor, the clamping conveyor is placed on the vacuum packaging bag transmission line, such as Figures 1 to 8As shown, the clamping conveyor includes a clamping frame 1, which includes columns 101 on both sides, two columns on each side, and longitudinal beams 102 at the upper ends of the two columns. The longitudinal beams 102 on both sides are connected by two cross beams 103. The four columns, two longitudinal beams and two cross beams constitute the clamping frame 1. The cross beam row spans the vacuum packaging bag transmission line. The bottom ends of the columns are provided with supporting legs 104, wherein: two rotating bag clamping mechanisms 2 are connected on the clamping frame through a width adjustment mechanism. The two rotating bag clamping mechanisms are arranged oppositely, spaced and parallel to form a vacuum packaging bag detection channel. The width adjustment mechanism can adjust the spacing distance between the two rotating bag clamping mechanisms, that is, adjust the width of the detection channel to adapt to vacuum packaging bags of different widths. The rotating bag clamping mechanism 2 includes a clamping belt rotating support frame 201, and an active rotating wheel and a driven rotating wheel are respectively provided at both ends of the support frame in the length direction. Figure 4 As shown, the active rotating wheel 202 and the driven rotating wheel 203 are arranged on both end sides of the bottom plate 204 of the clamping belt rotating support frame, and the clamping belt 205 is tightly wrapped around the active rotating wheel 202 and the driven rotating wheel 203. The active rotating wheel 203 is connected to the driving shaft 207 at a 90-degree angle through a pair of bevel gears 206. A driving motor 208 drives the driving shaft 207 to rotate, and then the active rotating wheel 202 drives the clamping belt 205 to rotate around the active rotating wheel 202 and the driven rotating wheel 203. A spline groove 207-1 is provided on the driving shaft 207. The spline groove 207-1 is used to drive the bevel gear to rotate. When adjusting the distance between the two rotating bag clamping mechanisms, the bevel gear 206-1 on the driving shaft 207 can slide along the spline groove 207-1. This structure ensures that the pair of bevel gears 206 always move with the clamping belt rotating support frame 201. For this reason, as shown in FIG. Figure 7 As shown, the bevel gear 206-1 on the drive shaft 207 is fixedly connected to the inner ring of the bearing 208, the outer ring of the bearing 208 is fixedly connected to the clamping belt rotating support frame 201, and the bevel gear 206-1 on the drive shaft 207 is slidably sleeved on the spline groove 207-1 of the drive shaft 207. Therefore, this structure ensures that the pair of bevel gears 206 always follow the movement of the clamping belt rotating support frame 201, and the rotating drive shaft 207 can always drive the bevel gear 206-1 to rotate. Therefore, when the distance between the two rotating bag clamping mechanisms is adjusted, the moving clamping belt rotating support frame drives the bevel gear on the drive shaft to slide along the spline groove through the bearing. In the embodiment, a clamping plate 209 is provided at the rear side of the clamping belt 205. The clamping plate is supported on the rear side of the clamping belt by a spring 210 and is attached to the clamping belt 205. The spring 210 is fixed to a support plate 211. In order for the support plate 211 to clamp the vacuum packaging bag 3 after it passes through the rotating wheels on both sides, the support plate 211 needs to lift up the clamping belt 205 and protrude from the active rotating wheel and the driven rotating wheel. Figure 8As shown, when the vacuum packaging bag 3 passes through, the rotating clamping belt brings the vacuum packaging bag into the inspection channel, and the clamping plates 209 of the two rotating bag clamping mechanisms are forced to compress the springs 210 backward. The clamping plates 209 hold qualified vacuum packaging bags 3 through the rebound force of the springs. Qualified vacuum packaging bags pass through the vacuum packaging bag inspection channel as the clamping belt rotates, while unqualified, or leaking, bags cannot be clamped by the clamping plates 209 and automatically fall off, thereby forming a dynamic inspection of the vacuum packaging bag 3 in a non-stop state. In order to ensure that the vacuum packaging bag is smoothly brought into the inspection channel, the front and rear ends of the clamping plates 209 are provided with outwardly flared inclined surfaces 209-1, wherein: the length of the clamping belt 205 is equal to or greater than one-quarter of the length of the vacuum packaging bag 3, the length of the clamping plates 209 is slightly smaller than the length of the clamping belt 205, approximately less than 20 mm, and at least four springs 210 are evenly distributed along the length direction of the clamping plates 209.

[0022] As shown in the figure: the width adjustment mechanism includes two crossbeams 103, and the two crossbeams 103 are arranged parallel to each other at the upper end of the clamping frame and across the vacuum packaging bag transmission line. Slide rails 103-1 are respectively provided on the lower end faces of the two crossbeams, and sliders 4 are respectively provided on the front and rear sides of the slide rails. The slider 4 is an assembly, and the lower end of the slider 4 is a connecting block 401. The rotating bag clamping mechanism 2 is connected and fixed to the lower end connecting block 401 of the slider 4 on one side of the slide rails at the lower ends of the two crossbeams and is slidably suspended on the two crossbeams 103 through the slider. A threaded through hole 402 is provided on the slider 4. The threaded through holes 402 on the two sliders 4 on the front and rear sides of the slide rails at the lower end of each crossbeam are positive and negative threaded through holes, containing positive and negative threaded through holes. The adjusting rod 5 with reverse thread is screwed into the positive and negative threaded through hole 402 of the two sliders 4. A rotating wheel 501 is provided at one end of the adjusting rod 5. An adjusting motor 6 is connected to the rotating wheels 501 of the two adjusting rods 5 under the two beams through a belt 7. The adjusting motor 6 is fixed on the support plate 9. The positioning top of the support plate 9 is fixed on the upper end surface of the two beams 103. By synchronously rotating the two adjusting rods 5, the positive and negative thread of the two adjusting rods 5 drive the two rotating bag clamping mechanisms 2 to adjust the spacing distance. Usually, the spacing distance is adjusted to be smaller than the width of the vacuum packaging bag passing through. The degree of smaller is that when the vacuum packaging bag passes through, the spring behind the clamping plate 209 is compressed to a width of half the length of the spring.

[0023] In order to control the adjustment width between the two rotating bag clamping mechanisms 2: an inductive scale 10, such as a magnetic scale, is provided on the side wall of the beam 103, and an inductive sensor 11 is provided on the slider. When the slider moves for adjustment, the interval distance is determined by the reading of the inductive scale by the inductive sensor provided on the slider, for example, the interval distance is adjusted by the number of pulses of the inductive magnetic scale (one pulse represents a distance, of course, the origin correction must be performed first).

[0024] In this embodiment, to facilitate adjustment, the belt 7 driven by the adjustment motor 6 is connected to the rotating wheels 501 of the two adjustment levers 5 via two tensioning pulleys 12 and 13, respectively. One of the tensioning pulleys 13 is adjustable and controlled by a screw 14. The drive motor, which drives the bevel gear, rotates the drive shaft via a toothed belt 15 and a toothed wheel 16. The bevel gear on the drive shaft is fixedly connected to the clamping belt rotating support frame via a bearing. When adjusting the distance between the two rotating bag clamping mechanisms, the moving clamping belt rotating support frame drives the bevel gear on the drive shaft to slide along the spline groove via the bearing.

[0025] The above-mentioned fully automatic vertical vacuum packaging bag clamping conveyor embodiment sets a section of elastic rotating splint on the transmission line, so that vacuum packaging with air leakage or insufficient vacuum degree will automatically fall and be rejected when passing through, while qualified vacuum packaging will be clamped by the rotating splint and sent to the next process when passing through, realizing automatic screening without stopping the machine and improving transmission efficiency.

Claims

1. A fully automatic vertical vacuum packaging bag clamping conveyor, placed on a vacuum packaging bag transmission line, including a clamping frame, characterized in that: Two rotating bag clamping mechanisms are connected on the clamping frame through a width adjustment mechanism. The two rotating bag clamping mechanisms are arranged opposite, spaced and parallel to form a vacuum packaging bag detection channel. The width adjustment mechanism can adjust the spacing between the two rotating bag clamping mechanisms. The rotating bag clamping mechanism includes a clamping belt rotating support frame. A driving rotating wheel and a driven rotating wheel are respectively provided at both ends of the clamping belt rotating support frame in the length direction. The clamping belt is tightly sheathed around the driving rotating wheel and the driven rotating wheel. The driving rotating wheel is connected to the driving shaft through a pair of bevel gears with a 90-degree angle. A driving motor drives the driving shaft to rotate, and then the driving rotating wheel drives the clamping belt to surround the main rotating wheel. The driving rotating wheel and the driven rotating wheel rotate, and a spline groove is provided on the driving rotating shaft. The spline groove is used to toggle the bevel gear to rotate. When the distance between the two rotating bag clamping mechanisms is adjusted, the bevel gear on the driving rotating shaft can slide along the spline groove. A clamping plate is provided on the rear side of the clamping belt. The clamping plate is close to the clamping belt and supported on the rear side of the clamping belt by a spring. When the vacuum packaging bag passes through, the clamping plates of the two rotating bag clamping mechanisms are forced to squeeze the spring backward. The clamping plates clamp the qualified vacuum packaging bag through the rebound force of the spring. The qualified vacuum packaging bag passes through the vacuum packaging bag detection channel as the clamping belt rotates. The vacuum packaging with insufficient vacuum degree will automatically fall and be rejected when it passes through. The front and rear ends of the clamping plate are arranged as outwardly slanted surfaces; The driving motor drives the driving shaft to rotate via a toothed belt and a toothed wheel.

2. The clamping conveyor according to claim 1, characterized in that: The width adjustment mechanism includes two cross beams, which are arranged parallel to each other at the upper end of the clamping frame and across the vacuum packaging bag transmission line. Slide rails are respectively provided on the lower end surfaces of the two cross beams, and sliders are respectively provided on the front and rear sides of the slide rails. The rotating bag clamping mechanism is connected and fixed to the slider on one side of the slide rails at the lower ends of the two cross beams, and is slidably suspended on the two cross beams through the sliders. Threaded through holes are provided on the sliders, and the threaded through holes of the two sliders on the front and rear sides of the slide rails at the lower ends of the cross beams are positive and negative threaded through holes. An adjusting rod containing positive and negative threads is screwed into the positive and negative threaded through holes of the two sliders. A rotating wheel is provided at one end of the adjusting rod, and an adjusting motor is connected to the rotating wheels of the two adjusting rods under the two cross beams through a belt. By synchronously rotating the two adjusting rods, the positive and negative threads of the two adjusting rods drive the two rotating bag clamping mechanisms to adjust the spacing.

3. The clamping conveyor according to claim 2, characterized in that: An inductive scale is provided on the side wall of the beam, and an inductive sensor is provided on the slider. When the slider moves and adjusts, the interval distance is determined by reading the inductive scale from the inductive sensor provided on the slider.

4. The clamping conveyor according to claim 2, characterized in that: The belt is connected to the rotating wheels of the two adjusting rods through two tensioning wheels respectively, and one of the tensioning wheels is an adjustable tensioning wheel.

5. The clamping conveyor according to claim 1, characterized in that: The bevel gear on the driving shaft is fixedly connected to the clamping belt rotating support frame through a bearing. When the distance between the two rotating bag clamping mechanisms is adjusted, the moving clamping belt rotating support frame drives the bevel gear on the driving shaft to slide along the spline groove through the bearing.

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