Seed bag sewing machine

Abstract

The utility model relates to a bag sewing machine, and provides a seed bag sewing machine which comprises a conveying belt used for conveying packaging bags, a sewing machine arranged at the tail end of the conveying belt, a sliding rail arranged on the side edge of the conveying belt and parallel to the conveying belt, and a grabbing device arranged on the sliding rail in a sliding mode. The grabbing device comprises a supporting plate horizontally arranged above the conveying belt, a pair of U-shaped first clamping rods arranged on the lower side of the supporting plate and provided with openings facing the sewing machine, a second clamping rod connected with the lower sides of the first clamping rods and horizontally arranged, a first driving device and a second driving device used for driving the supporting plate to move along the sliding rail. The upper side of the first clamping rod is hinged to the supporting plate, and the first driving device is used for driving the first clamping rod to rotate with the hinged position of the first clamping rod and the supporting plate as the circle center. The seed bag sewing machine can assist in feeding filled packaging bags into the sewing machine, and the sealing efficiency of the packaging bags is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of bag sewing machines, in particular to a seed bag sewing machine. Background Art

[0002] Plant seeds need to be packaged after a series of treatments. Usually, they are packaged into bags according to a certain weight. The traditional method is to place the bags on a conveyor belt, use a filling machine to fill the seeds into the bags, and then transfer them to a bag sewing machine (equivalent to a sewing machine), and use the bag sewing machine to seal the bags. For large-scale fully automatic production lines, these steps can be completed automatically, but for small and medium-sized production, they are usually manually assisted in filling and then transferred to the bag sewing machine. Since the opening of the bag is soft, it needs to be manually sent to the sewing machine, and when the bag is sent to the bag sewing machine, the opening of the bag should be kept flat, otherwise the seams at the sealing of the bag will be uneven, and even the bags will overlap, affecting the sealing quality. Therefore, it is necessary to design a device that can assist in feeding the bag into the sewing machine. Utility Model Content

[0003] The utility model aims to provide a seed bag sewing machine, which can assist in feeding filled packaging bags into the sewing machine and improve the sealing efficiency of the packaging bags.

[0004] The embodiment of the utility model is realized through the following technical scheme: the seed bag sewing machine of the utility model comprises a conveyor belt for conveying packaging bags, a sewing machine arranged at the end of the conveyor belt, a slide rail arranged at the side of the conveyor belt and parallel to the conveyor belt, and a grasping device slidably arranged on the slide rail; the grasping device comprises a support plate horizontally arranged above the conveyor belt, a pair of U-shaped first clamping rods arranged on the lower side of the support plate and opening toward the sewing machine, a second clamping rod connected to the lower side of the first clamping rod and arranged horizontally, a first driving device, and a second driving device for driving the support plate to move along the slide rail; the upper side of the first clamping rod is hinged to the support plate, and the first driving device is used to drive the first clamping rod to rotate around the hinge between the first clamping rod and the support plate as the center.

[0005] Furthermore, the first driving device includes a driving rod horizontally arranged on the side wall of the first clamping rod, a first sleeve sleeved on the outer wall of the driving rod, a hinge plate connected to the first sleeve, and an electric push rod vertically arranged above the support plate; the output end of the electric push rod is hinged to a pair of the hinge plates at the same time.

[0006] Furthermore, the grabbing device also includes a second sleeve sleeved on the middle part of the first clamping rod, and a third driving device for driving the second sleeve to rise and fall; the second clamping rod is fixedly connected to the side wall of the second sleeve.

[0007] Furthermore, the third driving device includes a pull rope connected to the upper end of the sleeve, a winding motor arranged on the support plate, and a winding drum arranged on the output shaft of the winding motor; a pair of the pull ropes are both wound around the winding drum.

[0008] Furthermore, a limit strip is provided on a middle side wall of the first clamping rod, and a limit groove is provided on the second sleeve, and the limit strip is slidably disposed in the limit groove.

[0009] Furthermore, the second driving device includes a slider slidably arranged in the slide rail, a connecting plate for connecting the slider and the support plate, a driving motor arranged on the lower end side wall of the connecting plate, and a roller arranged on the output shaft of the driving motor; the roller abuts against the slide rail.

[0010] Furthermore, a rubber layer is provided on the lower side of the first clamping rod and the outer wall of the second clamping rod.

[0011] The technical solution of the embodiment of the utility model has at least the following advantages and beneficial effects: the seed bag sewing machine of the utility model, when in use, first fills the seeds into the packaging bag through the filling device, and then uses the conveyor belt to transport it to the sewing machine for sealing operation. During the transportation process, the first drive device drives a pair of first clamping rods to separate. When the packaging bag is transported to the pair of first clamping rods, the first drive device drives the pair of first clamping rods to clamp the opening side of the packaging bag. At this time, under the action of the second drive device, the support plate is driven to move synchronously with the packaging bag to transport the packaging bag to the sewing machine, and the first clamping rod and the second clamping rod can pass through the sewing machine, and the packaging bag is completely sent into the sewing machine for sewing, so that the stitching is more neat and smooth, and no manual assistance is required for the packaging bag to be sewn. The sewing machine sews the thread between the first clamping rod and the second clamping rod, and then the support plate returns to the previous position. Since the filling operation and the operation of the sewing machine are both operating cycles set by the system, the grabbing device can also be set to automatic operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0013] Figure 1A structural schematic diagram of a seed bag sewing machine from one perspective provided by an embodiment of the utility model;

[0014] Figure 2 A schematic structural diagram of a seed bag sewing machine from two perspectives provided by an embodiment of the utility model;

[0015] Figure 3 A schematic diagram of the structure of a grabbing device provided in an embodiment of the utility model;

[0016] Figure 4 A schematic diagram of the structure of the first driving device provided in an embodiment of the utility model;

[0017] Figure 5 A schematic structural diagram of another perspective of the first driving device provided by an embodiment of the utility model;

[0018] Figure 6 This is a schematic structural diagram of the first clamping rod portion provided in an embodiment of the utility model.

[0019] Icons: 11- conveyor belt, 12- packaging bag, 13- sewing machine, 14- slide rail, 21- support plate, 22- first clamping rod, 23- second clamping rod, 24- second sleeve, 25- limit bar, 26- driving rod, 27- first sleeve, 28- hinged plate, 29- electric push rod, 210- pull rope, 211- winding drum, 212- winding motor, 213- connecting plate, 214- driving motor, 215- roller, 216- slider. DETAILED DESCRIPTION

[0020] Example

[0021] The following is further described in conjunction with specific embodiments. Figure 1 -Attached Figure 6As shown, the seed bag sewing machine of this embodiment includes a conveyor belt 11 for conveying packaging bags 12, a sewing machine 13 arranged at the end of the conveyor belt 11, a slide rail 14 arranged at the side of the conveyor belt 11 and parallel to the conveyor belt 11, and a grasping device slidably arranged on the slide rail 14; the grasping device includes a support plate 21 horizontally arranged above the conveyor belt 11, a pair of U-shaped first clamping rods 22 arranged at the lower side of the support plate 21 and opening toward the sewing machine 13, a second clamping rod 23 connected to the lower side of the first clamping rod 22 and arranged horizontally, a first driving device, and a second driving device for driving the support plate 21 to move along the slide rail 14; the upper side of the first clamping rod 22 is hinged to the support plate 21, and the first driving device is used to drive the first clamping rod 22 to rotate around the hinge between it and the support plate 21. Specifically, when in use, the seeds are first filled into the packaging bag 12 by the filling device, and then the conveyor belt 11 is used to transport the seeds to the sewing machine 13 for sealing. During transportation, the first drive device drives the pair of first clamping rods 22 to separate. When the packaging bag 12 is transported to the pair of first clamping rods 22, the first drive device drives the pair of first clamping rods 22 to clamp the opening side of the packaging bag 12. At this time, the support plate 21 is driven to move synchronously with the packaging bag 12 under the action of the second drive device, and the packaging bag 12 is transported to the sewing machine 13. The first clamping rod 22 and the second clamping rod 23 can pass through the sewing machine 13, and the packaging bag 12 is completely sent into the sewing machine 13 for sewing. The sewing machine 13 sews the thread between the first clamping rod 22 and the second clamping rod 23, and then the support plate 21 returns to the previous position. Since the filling operation and the operation of the sewing machine 13 are both operating cycles set by the system, the grabbing device can also be set to automatic operation.

[0022] The first driving device in this embodiment includes a driving rod 26 horizontally arranged on the side wall of the first clamping rod 22, a first sleeve 27 sleeved on the outer wall of the driving rod 26, a hinge plate 28 connected to the first sleeve 27, and an electric push rod 29 vertically arranged above the support plate 21; the output end of the electric push rod 29 is simultaneously hinged to a pair of hinge plates 28. Specifically, by pushing the pair of hinge plates 28 by the electric push rod 29, the pair of first clamping rods 22 can be separated through the first sleeve 27, and when the electric push rod 29 is retracted, the pair of first clamping rods 22 can be clamped together.

[0023] The grabbing device in this embodiment also includes a second sleeve 24 sleeved in the middle of the first clamping rod 22, and a third driving device for driving the second sleeve 24 to rise and fall; the second clamping rod 23 is fixedly connected to the side wall of the second sleeve 24. The third driving device includes a pull rope 210 connected to the upper end of the sleeve, a winding motor 212 provided on the support plate 21, and a winding drum 211 provided on the output shaft of the winding motor 212; a pair of pull ropes 210 are both wound on the winding drum 211. Specifically, when the first clamping rod 22 just clamps the packaging bag 12, the second clamping rod 23 is at the bottom. At this time, the winding drum 211 is driven to rotate by the winding motor 212, so that the pull rope 210 can be gathered into the winding drum 211, and the second clamping rod 23 can be driven to rise by the pull rope 210. During the rising process of the second clamping rod 23, the opening of the packaging bag 12 can be pressed flat, so that it can perform the sealing operation better.

[0024] In this embodiment, the first clamping rod 22 has a limit strip 25 on its middle side wall, and the second sleeve 24 has a limit slot in which the limit strip 25 is slidably disposed. Specifically, this can keep the second clamping rod 23 always parallel to the first clamping rod 22.

[0025] The second driving device in this embodiment includes a slider 216 slidably disposed in the slide rail 14, a connecting plate 213 for connecting the slider 216 and the support plate 21, a driving motor 214 disposed on the side wall of the lower end of the connecting plate 213, and a roller 215 disposed on the output shaft of the driving motor 214; the roller 215 abuts against the slide rail 14. Specifically, the roller 215 is driven to rotate by the driving motor 214, and the roller 215 is attached to the slide rail 14, so that the slider 216 can reciprocate along the slide rail 14. Since the lengths of the first clamping rod 22 and the second clamping rod 23 are long enough, the movement does not need to maintain high precision, and can also perform its function normally.

[0026] In this embodiment, a rubber layer is provided on the lower side of the first clamping rod 22 and the outer wall of the second clamping rod 23 .

[0027] In summary, the seed bag sewing machine of this embodiment, when in use, first fills the seeds into the packaging bag 12 through the filling device, and then uses the conveyor belt 11 to transport it to the sewing machine 13 for sealing operation. During the transportation process, the first drive device drives the pair of first clamping rods 22 to separate. When the packaging bag 12 is transported to the pair of first clamping rods 22, the first drive device drives the pair of first clamping rods 22 to clamp the opening side of the packaging bag 12. At this time, under the action of the second drive device, the support plate 21 is driven to move synchronously with the packaging bag 12, and the packaging bag 12 is transported to the sewing machine 13, and the first clamping rod 22 and the second clamping rod 23 can pass through the sewing machine 13, and the packaging bag 12 is completely sent into the sewing machine 13 for sewing. The sewing machine 13 sews the thread between the first clamping rod 22 and the second clamping rod 23, and then the support plate 21 returns to the previous position. Since the filling operation and the operation of the sewing machine 13 are both operating cycles set by the system, the grabbing device can also be set to automatic operation.

[0028] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be subject to various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A seed bag sewing machine, characterized in that: It comprises a conveyor belt (11) for conveying packaging bags (12), a sewing machine (13) arranged at the end of the conveyor belt (11), a slide rail (14) arranged at the side of the conveyor belt (11) and parallel to the conveyor belt (11), and a grabbing device slidably arranged on the slide rail (14); The grabbing device comprises a support plate (21) horizontally arranged above the conveyor belt (11), a pair of U-shaped first clamping rods (22) arranged at the lower side of the support plate (21) and opening toward the sewing machine (13), a second clamping rod (23) connected to the lower side of the first clamping rod (22) and arranged horizontally, a first driving device, and a second driving device for driving the support plate (21) to move along the slide rail (14); The upper side of the first clamping rod (22) is hinged to the support plate (21), and the first driving device is used to drive the first clamping rod (22) to rotate along the hinge point between the first clamping rod and the support plate (21) as the center.

2. The seed bag sewing machine according to claim 1, characterized in that: The first driving device comprises a driving rod (26) horizontally arranged on the side wall of the first clamping rod (22), a first sleeve (27) sleeved on the outer wall of the driving rod (26), a hinge plate (28) connected to the first sleeve (27), and an electric push rod (29) vertically arranged above the support plate (21); the output end of the electric push rod (29) is simultaneously hinged to a pair of the hinge plates (28).

3. The seed bag sewing machine according to claim 1, characterized in that: The gripping device further comprises a second sleeve (24) sleeved on the middle part of the first clamping rod (22), and a third driving device for driving the second sleeve (24) to rise and fall; the second clamping rod (23) is fixedly connected to the side wall of the second sleeve (24).

4. The seed bag sewing machine according to claim 3, characterized in that: The third driving device comprises a pull rope (210) connected to the upper end of the sleeve, a winding motor (212) arranged on the support plate (21), and a winding drum (211) arranged on the output shaft of the winding motor (212); a pair of the pull ropes (210) are both wound around the winding drum (211).

5. The seed bag sewing machine according to claim 3, characterized in that: A limiting strip (25) is provided on the middle side wall of the first clamping rod (22), and a limiting groove is provided on the second sleeve (24), wherein the limiting strip (25) is slidably disposed in the limiting groove.

6. The seed bag sewing machine according to claim 1, characterized in that: The second driving device comprises a slider (216) slidably arranged in the slide rail (14), a connecting plate (213) for connecting the slider (216) and the support plate (21), a driving motor (214) arranged on the side wall of the lower end of the connecting plate (213), and a roller (215) arranged on the output shaft of the driving motor (214); the roller (215) abuts against the slide rail (14).

7. The seed bag sewing machine according to claim 1, characterized in that: The lower side of the first clamping rod (22) and the outer wall of the second clamping rod (23) are both provided with a rubber layer.

Images