Automatic weighing packaging machine

Abstract

The invention belongs to the technical field of weighing and packaging machine equipment, and discloses an automatic weighing and packaging machine which is technically characterized by comprising a workbench, two sets of oppositely-distributed vertical plates are fixedly installed on the surface of the workbench, a material box located above the workbench is fixedly installed in the middles of the two sets of vertical plates through supports, and a material guide pipe is arranged at the bottom end of the material box; a conveying mechanism is arranged between the two sets of vertical plates, the conveying mechanism comprises a conveying belt and an intermittent transmission assembly, a positioning mechanism is arranged on the outer side of a material guide pipe, and the positioning mechanism comprises a push plate, a positioning assembly and an adjusting assembly. And when the stop position of the packaging box deviates from the discharging opening, the products are prone to falling out of the packaging box when being automatically put, and the using effect is poor.

Description

Technical Field

[0001] The invention relates to the technical field of weighing and packaging machine equipment, in particular to an automatic weighing and packaging machine. Background Art

[0002] The level of automation is constantly improving in the manufacturing industry, and the scope of application is expanding. Automated operation in the packaging machinery industry is changing the action mode of the packaging process and the processing methods of packaging containers and materials. The packaging system that realizes automatic control can greatly improve production efficiency and product quality, significantly eliminate errors caused by packaging processes and printing and labeling, effectively reduce the labor intensity of employees and reduce energy and resource consumption. Revolutionary automation is changing the manufacturing methods of the packaging machinery industry and the transmission methods of its products. The designed and installed automatic control packaging system has shown a very obvious effect in terms of improving product quality and production efficiency in the packaging machinery industry, as well as eliminating processing errors and reducing labor intensity. It is especially important for industries such as food, beverages, pharmaceuticals, and electronics. The technology of automatic devices and system engineering is being further deepened and is being more widely used.

[0003] When the automatic weighing packaging machine is in use, it usually controls the movement of batches of packaging boxes on the production line through a conveyor belt. When the packaging box moves to the corresponding position, the unloading device puts a certain amount of product into the packaging box.

[0004] The existing packaging box cannot be accurately positioned when it moves on the conveyor belt. When the packaging box stops moving and is ready to put the product in, the packaging box cannot be accurately aligned with the discharge port of the discharge device. When the stopped position of the packaging box deviates from the discharge port, the product is easy to fall out of the packaging box when it is automatically put in, resulting in poor use effect. Summary of the invention

[0005] The object of the present invention is to provide an automatic weighing and packaging machine to solve the problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions: The conveyor belt is provided with a plurality of vertical plates, the plurality of vertical plates are connected to the conveyor belt by a bracket, and the plurality of vertical plates are connected to the conveyor belt by a bracket.

[0007] As a further solution of the present invention: the intermittent transmission assembly includes two groups of relatively distributed rotating rods rotatably installed between two groups of vertical plates, fixed rollers are fixedly installed on the surface of the rotating rods, and the conveyor belt is sleeved on the outside of the two groups of fixed rollers. One end of one group of rotating rods extends to the outside of the vertical plate and is fixedly installed with a fixed gear disk, a motor is fixedly installed on the side wall of the vertical plate, and a transmission gear disk is fixedly installed on the output shaft of the motor, and an arc-shaped rack is arranged on the surface of the transmission gear disk, and the transmission gear disk is meshed with the fixed gear disk through the arc-shaped rack.

[0008] As a further solution of the present invention: the positioning assembly includes multiple groups of guide rods distributed in a ring and rotatably installed on the side wall of the guide tube, the guide rods are L-shaped structures, the end of the guide rods away from the guide tube is fixedly connected to the push plate, and a pulling spring is fixedly installed on the surface of the guide rod, and the telescopic end of the pulling spring is connected to the bottom wall of the material box.

[0009] As a further scheme of the present invention: the adjusting assembly includes slide grooves respectively provided on two side walls opposite to each other of two groups of vertical plates, and the slide groove is set to an end directly below the guide tube, and is arranged to have a downward arc structure, and a sliding block is slidably installed in the slide groove, and a control rod is fixedly installed between the two groups of sliding blocks, and the control rod passes through the inner cavity of the conveyor belt, and a stop rod that cooperates with the control rod is fixedly installed on the inner side wall of the conveyor belt. A ring groove that cooperates with the stop rod is provided on the surface of the fixed roller, and the guide tube is sleeved with a control ring, and the control ring is slidably connected to the guide tube in a vertical direction, and a support rod is rotatably installed on the surface of the control ring, and the end of the support rod away from the control ring is connected to the guide rod, and cross rods are respectively fixedly installed on the opposite sides of the control ring, and a pulling rope is fixedly installed on the end of the cross rod away from the control ring, and a guide rod is provided on the side walls of the vertical plate, and the end of the pulling rope away from the cross rod passes through the guide rod and is connected to the control rod.

[0010] As a further solution of the present invention: the side wall of the guide tube is provided with a plurality of groups of vertical grooves distributed in an annular shape, and a limit block is slidably installed in the vertical groove along the vertical direction. The limit block extends to the outside of the vertical groove and is connected to the control ring.

[0011] As a further solution of the present invention: a thrust spring is fixedly installed on the bottom wall of the vertical groove, and the telescopic end of the thrust spring is connected to the limit block.

[0012] As a further solution of the present invention: a limit rod is fixedly installed in the vertical groove, and the limit rod is slidably connected with the limit block along the vertical direction.

[0013] Compared with the prior art, the beneficial effect of the present invention is that when the conveyor belt drives the packaging box to move under the material guide tube, the relative positions of the multiple push plates and the packaging box can be automatically adjusted by setting the positioning component and the adjustment component to cooperate with each other, so that the packaging box and the material guide tube are accurately aligned in the vertical direction, and the material guide tube can accurately put the product into the packaging box. This solves the problem that the current packaging box cannot be accurately aligned with the discharge port of the discharge device, and when the stop position of the packaging box deviates from the discharge port, the product is easy to fall out of the packaging box when the product is automatically put, resulting in poor use effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The figure is a schematic diagram of the three-dimensional structure of an automatic weighing and packaging machine provided in an embodiment of the present invention.

[0015] Figure 2 It is a schematic diagram of the main structure of an automatic weighing and packaging machine provided in an embodiment of the present invention.

[0016] Figure 3 The present invention is a schematic diagram of a positioning plate and its connection structure in an automatic weighing and packaging machine provided in an embodiment of the present invention.

[0017] Figure 4 for Figure 1 Schematic diagram of the enlarged structure of A.

[0018] Figure 5 The present invention is a schematic diagram of a fixed roller and its connection structure in an automatic weighing and packaging machine provided in an embodiment of the present invention.

[0019] Figure 6 for Figure 2 Schematic diagram of the enlarged structure of B.

[0020] Figure 7 for Figure 2 Schematic diagram of the enlarged structure of C in the figure.

[0021] Among them: 1-workbench, 2-vertical plate, 3-conveying mechanism, 31-conveying belt, 32-intermittent transmission assembly, 321-rotating rod, 322-fixed roller, 323-fixed gear disc, 324-transmission gear disc, 325-motor, 4-material box, 41-material guide pipe, 5-positioning mechanism, 51-push plate, 52-positioning assembly, 521-guide rod, 522-pull spring, 53-adjustment assembly, 531-control ring, 532-cross bar, 533-pull rope, 534-guide rod, 535-slide groove, 536-sliding block, 537-control rod, 538-block rod, 539-ring groove, 530-support rod, 6-vertical groove, 7-limit block, 8-thrust spring, 9-limit rod. DETAILED DESCRIPTION

[0022] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0023] The specific implementation of the present invention is described in detail below in conjunction with specific embodiments.

[0024] like Figure 1 , Figure 2As shown, it is a structural diagram of an automatic weighing and packaging machine provided by an embodiment of the present invention, comprising a workbench 1, two groups of relatively distributed vertical plates 2 are fixedly installed on the surface of the workbench 1, a material box 4 located above the workbench 1 is fixedly installed in the middle of the two groups of vertical plates 2 through a bracket, a material guide pipe 41 is arranged at the bottom end of the material box 4, a conveying mechanism 3 is arranged between the two groups of vertical plates 2, the conveying mechanism 3 includes a conveyor belt 31 and an intermittent transmission component 32, the intermittent transmission component 32 is located between the two groups of vertical plates 2 and connected to the conveyor belt 31, the intermittent transmission component 32 is used to control the intermittent rotation of the conveyor belt 31 between the two groups of vertical plates 2, and the outer portion of the material guide pipe 41 is provided with a conveyor belt 31. A positioning mechanism 5 is provided on the side, and the positioning mechanism 5 includes a push plate 51, a positioning component 52 and an adjusting component 53. The push plates 51 are provided with multiple groups and are distributed in a ring shape around the guide tube 41. The positioning component 52 is located on the side wall of the guide tube 41 and is connected to the push plate 51. The positioning component 52 is used to control the push plate 51 to be at the highest point position outside the guide tube 41. The adjusting component 53 is located between the two groups of vertical plates 2 and is connected to the positioning component 52. When the conveyor belt 31 drives the packaging box to move under the guide tube 41, the adjusting component 53 controls the multiple groups of push plates 51 to move synchronously toward the bottom of the guide tube 41 by cooperating with the positioning component 52.

[0025] Initially, the positioning component 52 supports and positions the push plate 51. At this time, the push plate 51 is at the highest point outside the guide tube 41. When weighing and packaging the products, batches of packaging boxes are placed on the surface of the conveyor belt 31 in sequence. The intermittent transmission component 32 controls the intermittent movement of the conveyor belt 31 for a certain distance, and the conveyor belt 31 drives the packaging boxes to move synchronously. When the packaging boxes move to the bottom of the guide tube 41, the adjustment component 53 cooperates with the positioning component 52 to control multiple groups of push plates 51 to rotate synchronously toward the bottom of the guide tube 41. When the packaging boxes are not aligned with the guide tube 41 in the vertical direction, the push plates 51 will push the packaging boxes to move synchronously when they rotate toward the bottom of the guide tube 41. Multiple groups of push plates 51 cooperate with each other to control the packaging boxes to be accurately aligned with the guide tube 41, and the guide tube 41 controls a certain amount of products to fall into the packaging boxes. After the product falls into the packaging box, the conveyor belt 31 moves again. At this time, the positioning component 52 controls the push plate 51 to move in the opposite direction to the highest point again, and when the next group of packages moves to the bottom of the guide tube 41, it is accurately positioned again.

[0026] like Figure 1 , Figure 2 , Figure 5As shown, as a preferred embodiment of the present invention, the intermittent transmission assembly 32 includes two groups of relatively distributed rotating rods 321 rotatably installed between two groups of vertical plates 2, and fixed rollers 322 are fixedly installed on the surface of the rotating rods 321. The conveyor belt 31 is sleeved on the outside of the two groups of fixed rollers 322. One end of one group of rotating rods 321 extends to the outside of the vertical plate 2 and is fixedly installed with a fixed gear plate 323. A motor 325 is fixedly installed on the side wall of the vertical plate 2, and a transmission gear plate 324 is fixedly installed on the output shaft of the motor 325. The surface of the transmission gear plate 324 is provided with an arc-shaped rack, and the transmission gear plate 324 is meshed with the fixed gear plate 323 through the arc-shaped rack.

[0027] When in use, the motor 325 drives the transmission gear disc 324 to rotate, and the transmission gear disc 324 drives the arc-shaped rack to rotate synchronously. When the arc-shaped rack is engaged with the fixed gear disc 323, the transmission gear disc 324 can drive the fixed gear disc 323 to rotate synchronously during rotation. The fixed gear disc 323 drives the rotating rod 321 and the fixed roller 322 to rotate. The fixed roller 322 drives the conveyor belt 31 to move synchronously. The conveyor belt 31 drives the packaging box to move a certain distance between the two sets of vertical plates 2. When the arc-shaped rack is separated from the fixed gear disc 323, when the transmission gear disc 324 rotates, the fixed gear disc 323 remains stationary. At this time, the rotating rod 321 and the fixed roller 322 stop rotating, and the conveyor belt 31 stops moving.

[0028] like Figure 1 , Figure 2 , Figure 3 As shown, as a preferred embodiment of the present invention, the positioning assembly 52 includes a plurality of groups of guide rods 521 distributed in an annular shape and rotatably installed on the side wall of the guide tube 41, and the guide rods 521 are of an L-shaped structure. One end of the guide rods 521 away from the guide tube 41 is fixedly connected to the push plate 51, and a pulling spring 522 is fixedly installed on the surface of the guide rod 521, and the telescopic end of the pulling spring 522 is connected to the bottom wall of the material box 4.

[0029] Initially, the pulling spring 522 applies an upward pulling force to the guide rod 521, and the end of the guide rod 521 away from the guide tube 41 positions the push plate 51. At this time, the push plate 51 is at the highest point outside the guide tube 41. When the packaging box moves toward the bottom of the guide tube 41, the adjustment component 53 simultaneously applies a downward pulling force to the multiple groups of guide rods 521. At this time, the guide rods 521 drive the push plates 51 to rotate synchronously toward the bottom of the guide tube 41. The multiple groups of push plates 51 can accurately move the packaging box to the bottom of the guide tube 41. When the packaging box is loaded and moved again, the adjustment component 53 releases the pulling force on the guide rod 521, and the pulling spring 522 pulls the guide rod 521 to rotate upward to the original position.

[0030] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 6 , Figure 7 As shown, as a preferred embodiment of the present invention, the adjustment component 53 includes two sets of slide grooves 535 respectively provided on the opposite side walls of the vertical plates 2, and the slide groove 535 is set to a downward arc structure toward the end directly below the guide tube 41. A sliding block 536 is slidably installed in the slide groove 535, and a control rod 537 is fixedly installed between the two sets of sliding blocks 536. The control rod 537 passes through the inner cavity of the conveyor belt 31, and a stop rod 538 that cooperates with the control rod 537 is fixedly installed on the inner wall of the conveyor belt 31. The surface of the fixed roller 322 is provided with an annular groove 539 that cooperates with the stop rod 538. A control ring 531 is sleeved on the outer side of the guide tube 41, and the control ring 531 is slidably connected to the guide tube 41 along the vertical direction. A support rod 530 is rotatably installed on the surface of the control ring 531, and the end of the support rod 530 away from the control ring 531 is connected to the guide rod 521. Cross bars 532 are fixedly installed on the opposite sides of the control ring 531, and a pulling rope 533 is fixedly installed on the end of the cross bar 532 away from the control ring 531. A guide rod 534 is provided on the side wall of the vertical plate 2, and the end of the pulling rope 533 away from the cross bar 532 passes through the guide rod 534 and is connected to the control rod 537.

[0031] Initially, the pulling rope 533 applies a pulling force to the sliding block 536, and the sliding block 536 is located at one end of the slide groove 535 away from the guide tube 41. When the conveyor belt 31 moves, it drives the blocking rod 538 to move synchronously, and the blocking rod 538 pushes the control rod 537 to move. At this time, the sliding block 536 moves synchronously in the slide groove 535, and the control rod 537 cooperates with the pulling rope 533 when moving, and can pull the control ring 531 to move vertically downward on the outside of the guide tube 41. The control ring 531 cooperates with the support rod 530 to pull the guide rod 521 to rotate toward the bottom of the guide tube 41. At this time, the push plate 51 at the bottom end of the guide rod 521 can position the packaging box on the surface of the conveyor belt 31. When the conveyor belt 31 moves again, the sliding block 536 moves to the arc-shaped part of the slide groove 535. At this time, the blocking rod 538 and the control rod 537 are separated from each other, and the blocking rod 538 releases the thrust on the control rod 537. The pulling spring 522 pulls the guide rod 521 to rotate upward, and the guide rod 521 cooperates with the support rod 530 to pull the control ring 531 to move upward on the outside of the guide tube 41. The upward-moving control ring 531 cooperates with the pulling rope 533 to pull the sliding block 536 to move in the opposite direction to the other end of the slide groove 535.

[0032] like Figure 1 , Figure 2 , Figure 7As shown in the figure, as a preferred embodiment of the present invention, the side wall of the guide tube 41 is provided with a plurality of groups of vertical grooves 6 distributed in an annular shape, and a limit block 7 is slidably installed in the vertical groove 6 along the vertical direction, and the limit block 7 extends to the outside of the vertical groove 6 and is connected to the control ring 531. The limit block 7 moves in the vertical groove 6, which can effectively improve the stability of the control ring 531.

[0033] like Figure 1 , Figure 2 , Figure 7 As shown, as a preferred embodiment of the present invention, a thrust spring 8 is fixedly installed on the bottom wall of the vertical groove 6 , and the telescopic end of the thrust spring 8 is connected to the limit block 7 .

[0034] like Figure 1 , Figure 2 , Figure 7 As shown, as a preferred embodiment of the present invention, a limit rod 9 is fixedly installed in the vertical groove 6, and the limit rod 9 is slidably connected with the limit block 7 along the vertical direction.

[0035] The working principle of the present invention is as follows: initially, the pulling spring 522 applies an upward pulling force to the guide rod 521, and the end of the guide rod 521 away from the guide tube 41 positions the push plate 51. At this time, the push plate 51 is at the highest point outside the guide tube 41. When weighing and packaging the product, the batches of packaging boxes are placed on the surface of the conveyor belt 31 in sequence, and the motor 325 drives the transmission gear disc 324 to rotate, and the transmission gear disc 324 drives the arc-shaped rack to rotate synchronously. When the arc-shaped rack is meshed with the fixed gear disc 323, When the transmission gear disc 324 rotates, it can drive the fixed gear disc 323 to rotate synchronously. The fixed gear disc 323 drives the rotating rod 321 and the fixed roller 322 to rotate. The fixed roller 322 drives the conveyor belt 31 to move synchronously. The conveyor belt 31 drives the packaging box to move a certain distance between the two sets of vertical plates 2. When the arc-shaped rack separates from the fixed gear disc 323, when the transmission gear disc 324 rotates, the fixed gear disc 323 remains stationary. At this time, the rotating rod 321 and the fixed roller 322 stop rotating, and the conveyor belt 31 stops moving.

[0036] The conveyor belt 31 drives the packaging box to move synchronously. When the packaging box moves toward the bottom of the guide tube 41, the conveyor belt 31 drives the blocking rod 538 to move synchronously. The blocking rod 538 pushes the control rod 537 to move. At this time, the sliding block 536 moves synchronously in the slide groove 535. The control rod 537 cooperates with the pulling rope 533 when moving, and can pull the control ring 531 to move vertically downward outside the guide tube 41. The control ring 531 cooperates with the support rod 530 to pull the guide rod 521 to rotate toward the bottom of the guide tube 41. At this time, the push plate 51 at the bottom end of the guide rod 521 can position the packaging box on the surface of the conveyor belt 31. Multiple groups of push plates 51 can accurately move the packaging box to the bottom of the guide tube 41. When the conveyor belt 31 moves again after the loading of the packaging boxes is completed, the sliding block 536 moves to the arc-shaped part of the slide groove 535. At this time, the blocking rod 538 and the control rod 537 are separated from each other, and the blocking rod 538 releases the thrust on the control rod 537. The pulling spring 522 pulls the guide rod 521 to rotate upward, and the guide rod 521 cooperates with the support rod 530 to pull the control ring 531 to move upward on the outside of the guide tube 41. The upward moving control ring 531 cooperates with the pulling rope 533 to pull the sliding block 536 to move in the opposite direction to the other end of the slide groove 535.

[0037] The preferred embodiments of the present invention are described in detail above, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in this field without departing from the purpose of the present invention.

Claims

1. An automatic weighing and packaging machine, comprising a workbench, wherein two sets of vertical plates arranged opposite to each other are fixedly mounted on the surface of the workbench, a material box located above the workbench is fixedly mounted in the middle of the two sets of vertical plates through a bracket, and a material guide pipe is arranged at the bottom of the material box, characterized in that: A conveying mechanism is arranged between the two groups of vertical plates, and the conveying mechanism includes a conveyor belt and an intermittent transmission component. The intermittent transmission component is located between the two groups of vertical plates and connected to the conveyor belt. The intermittent transmission component is used to control the intermittent rotation of the conveyor belt between the two groups of vertical plates. A positioning mechanism is arranged on the outside of the guide tube, and the positioning mechanism includes a push plate, a positioning component and an adjustment component. The push plates are arranged in multiple groups and are distributed in a ring shape around the guide tube. The positioning component is located on the side wall of the guide tube and connected to the push plate. The positioning component is used to control the push plate to be at the highest point position on the outside of the guide tube. The adjustment component is located between the two groups of vertical plates and connected to the positioning component. When the conveyor belt drives the packaging box to move under the guide tube, the adjustment component controls the multiple groups of push plates to move synchronously toward the bottom of the guide tube by cooperating with the positioning component.

2. The automatic weighing and packaging machine according to claim 1, characterized in that: The intermittent transmission assembly includes two groups of relatively distributed rotating rods rotatably installed between two groups of vertical plates, fixed rollers are fixedly installed on the surfaces of the rotating rods, and the conveyor belt is sleeved on the outsides of the two groups of fixed rollers. One end of one group of rotating rods extends to the outside of the vertical plate and is fixedly installed with a fixed gear disk, a motor is fixedly installed on the side wall of the vertical plate, and a transmission gear disk is fixedly installed on the output shaft of the motor, and an arc-shaped rack is arranged on the surface of the transmission gear disk, and the transmission gear disk is meshed with the fixed gear disk through the arc-shaped rack.

3. The automatic weighing and packaging machine according to claim 1, characterized in that: The positioning assembly includes multiple groups of guide rods distributed in an annular shape and rotatably installed on the side wall of the guide tube. The guide rods are L-shaped structures. One end of the guide rods away from the guide tube is fixedly connected to the push plate. A pulling spring is fixedly installed on the surface of the guide rods. The telescopic end of the pulling spring is connected to the bottom wall of the material box.

4. The automatic weighing and packaging machine according to claim 3, characterized in that: The adjusting assembly includes slide grooves respectively provided on two side walls opposite to each other of two sets of vertical plates, and the slide groove is set to an end directly below the guide tube, and is arranged to have a downward arc structure. A sliding block is slidably installed in the slide groove, and a control rod is fixedly installed between the two sets of sliding blocks. The control rod passes through the inner cavity of the conveyor belt, and a stop rod that cooperates with the control rod is fixedly installed on the inner side wall of the conveyor belt. A ring groove that cooperates with the stop rod is provided on the surface of the fixed roller, and the guide tube is sleeved with a control ring, and the control ring is slidably connected to the guide tube in a vertical direction. A support rod is rotatably installed on the surface of the control ring, and one end of the support rod away from the control ring is connected to the guide rod, and cross rods are respectively fixedly installed on the opposite sides of the control ring, and a pulling rope is fixedly installed on the one end of the cross rod away from the control ring. A guide rod is provided on the side wall of the vertical plate, and one end of the pulling rope away from the cross rod passes through the guide rod and is connected to the control rod.

5. The automatic weighing and packaging machine according to claim 4, characterized in that: The side wall of the material guide pipe is provided with a plurality of groups of vertical grooves distributed in an annular shape, and a limit block is slidably installed in the vertical groove along the vertical direction. The limit block extends to the outside of the vertical groove and is connected to the control ring.

6. The automatic weighing and packaging machine according to claim 5, characterized in that: A thrust spring is fixedly mounted on the bottom wall of the vertical slot, and the telescopic end of the thrust spring is connected to the limiting block.

7. The automatic weighing and packaging machine according to claim 5, characterized in that: A limit rod is fixedly installed in the vertical slot, and the limit rod is slidably connected with the limit block along the vertical direction.

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