Bag fertilizer filling and sealing auxiliary device

Abstract

The invention discloses an auxiliary device for filling and sealing bagged fertilizers, comprising a first guardrail, a second guardrail, a first clamping arm, a second clamping arm, an elastic support rod and a tension spring. The first clamping arm is rotatably and slidably arranged on a first sliding rod at the bottom of the first guardrail, and the second clamping arm is rotatably and slidably arranged on a second sliding rod at the bottom of the second guardrail. The gravity of the bagged fertilizer is used to press down so that the first clamping arm and the second clamping arm are turned inward to clamp the bag opening in a straight line. The first clamping arm and the second clamping arm move synchronously with the bagged fertilizer under the action of friction force, and the bag opening is sent to the working position of a bag sewing machine for sewing. Subsequently, under the action of the elastic support rod and the tension spring, the first clamping arm and the second clamping arm are reset and can work cyclically.

Description

Technical Field

[0001] The invention relates to the field of fertilizer filling and sealing equipment, and in particular to an auxiliary device for filling and sealing bagged fertilizers. Background Art

[0002] like Figure 1 The figure shows a schematic diagram of the structure of a fertilizer filling line in the prior art, including a filling port, a conveyor belt and a bag sewing machine. The packaging bag is put on the filling port, and the bag clamp on the filling port clamps the packaging bag to start filling the fertilizer. After the filling is completed, the bag clamp is opened, and the bagged fertilizer falls onto the conveyor belt, and then moves to the bag sewing machine through the conveyor belt for sewing. Since the packaging bag is a soft material that cannot be shaped, the bag mouth needs to be manually stretched and straightened during the movement of the bagged fertilizer to the bag sewing machine, and then sent to the working part of the bag sewing machine, otherwise the bag mouth is difficult to enter automatically. For some bagged fertilizers with higher quality requirements, the bag mouth needs to be stretched and folded again before sewing. This manual bag opening arrangement method is time-consuming and labor-intensive, and increases the amount of manual labor.

[0003] At present, some manufacturers have added CNC equipment to the moving section of the conveyor belt to achieve the purpose of automatically sorting the bag openings by executing preset programs. However, the CNC equipment has a complex structure and high cost, making it difficult to popularize and apply. Summary of the invention

[0004] In view of the above technical problems, the purpose of the present invention is a bagged fertilizer filling and sealing auxiliary device, which can automatically replace manual tidying of the bag mouth, and compared with CNC equipment, it has a simple structure and low cost.

[0005] To achieve the above purpose, the technical solution adopted by the present invention is as follows:

[0006] A bagged fertilizer filling and sealing auxiliary device comprises a first guardrail, a second guardrail, a first clamping arm, a second clamping arm and an elastic support rod. A first sliding rod is fixedly arranged at the bottom of the first guardrail, and a second sliding rod is fixedly arranged at the bottom of the second guardrail.

[0007] The first clamping arm includes a first sleeve, a first pressure plate, a first bent rod and a first clamping plate. The first sleeve is sleeved on the first sliding rod. The first pressure plate is fixedly connected to the first sleeve on the side facing the second guardrail. The lower end of the first bent rod is fixedly connected to the first sleeve. The first clamping plate is arranged at the upper end of the first bent rod.

[0008] The second clamping arm includes a second sleeve, a second pressure plate, a second bent rod and a second clamping plate. The second sleeve is sleeved on the second sliding rod. The second pressure plate is fixedly connected to the side of the second sleeve facing the first guardrail. The lower end of the second bent rod is fixedly connected to the second sleeve. The second clamping plate is arranged at the upper end of the second bent rod.

[0009] The elastic support rod is arranged on the right side of the first clamping arm and the second clamping arm, and the elastic support rod is hinged to the first clamping arm and the second clamping arm respectively.

[0010] As a further technical solution, a connecting rod is fixedly connected between the right end of the first guardrail and the right end of the second guardrail, and a tension spring is connected between the elastic support rod and the connecting rod.

[0011] As a further technical solution, a first buffer pad is provided at the right end of the first sliding rod, and a second buffer pad is provided at the right end of the second sliding rod.

[0012] As a further technical solution, a first guide plate is connected to the left end of the first guardrail, and a second guide plate is connected to the left end of the second guardrail. The first guide plate and the second guide plate are arranged in parallel and spaced apart.

[0013] As a further technical solution, the first clamping plate and the first curved rod are slidably arranged, an anti-lock spring is connected between the first clamping plate and the first curved rod, and the connection structure between the second clamping plate and the second curved rod is the same as the above structure.

[0014] As a further technical solution, the elastic support rod includes an inner connecting rod, an outer connecting tube and a pressure spring. The inner connecting rod is slidably connected to the inside of the outer connecting tube. A pressure spring is arranged inside the outer connecting tube. One end of the pressure spring is connected to the end face of the inner connecting rod, and the other end is connected to the inner side face of the outer connecting tube.

[0015] As a further technical solution, one end of the inner connecting rod located inside the outer connecting rod is fixedly connected to a limiting block, and the corresponding end of the outer connecting rod is fixedly connected to an annular plug.

[0016] As a further technical solution, the right end of the first clamping plate is fixedly connected to a sliding shaft, the sliding shaft is slidably connected to a torsion wheel, the left side of the torsion wheel is fixedly connected to a lever, and the torsion wheel is movably connected to the first guardrail through a linkage plate;

[0017] A rotating slide groove is arranged on the sliding shaft, a sliding block is fixedly arranged on the inner side of the twisting wheel, and the sliding block is slidably matched with the rotating slide groove.

[0018] As a further technical solution, an annular groove is provided at the right end of the first guardrail, a straight slot is opened on the linkage plate, the straight slot and the annular groove are engaged with each other, and one end of the linkage plate is rotatably connected to the torsion wheel.

[0019] The present invention adopts the above technical solution, and has the following advantages compared with the prior art:

[0020] 1. The gravity of the bagged fertilizer is used to press down, so that the first clamping arm and the second clamping arm automatically clamp the bag opening into a straight shape, replacing the operation of manually tightening and straightening the bag opening. Under the action of friction, the first clamping arm and the second clamping arm move synchronously with the bagged fertilizer, and the bag opening is sent to the working part of the bag sewing machine. It is reset under the action of the tension spring and the elastic support rod, and can work in a cycle. The device relies entirely on mechanical structure and does not require the input of other power. It has the advantages of simple structure, easy manufacturing, convenience and practicality, and lower cost compared to CNC equipment.

[0021] 2. By utilizing the structural coordination between the sliding shaft and the twisting wheel, the relative sliding between the two is converted into the rotation of the twisting wheel, driving the lever to flip, and then automatically folding the bag opening, further enhancing the functionality and practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the structure of a fertilizer filling line in the prior art;

[0023] Figure 2 It is a bagged fertilizer filling and sealing auxiliary device in the present invention;

[0024] Figure 3 This is a schematic diagram of the structure of the first guardrail and the second guardrail in the present invention;

[0025] Figure 4 for Figure 3 The structure diagram at A is enlarged;

[0026] Figure 5 It is a schematic diagram of the structure of the first clamping arm, the second clamping arm and the linkage plate in the present invention;

[0027] Figure 6 for Figure 5 The enlarged cross-section structure diagram at B in the middle;

[0028] Figure 7 This is a cross-sectional structural diagram of the elastic support rod in the present invention;

[0029] Figure 8 for Figure 7 Enlarged structural diagram at center C.

[0030] In the figure,

[0031] 10-filling port; 11-bag clamp; 20-conveyor belt; 30-bag sewing machine; 40-first guardrail; 41-first sliding rod; 42-first guide plate; 43-first buffer pad; 44-annular groove; 50-second guardrail; 51-second sliding rod; 52-second guide plate; 53-second buffer pad; 60-first clamping arm; 61-first sleeve; 62-first pressing plate; 63-first bending rod; 64-first clamping plate; 65-sliding shaft; 66-first clamping plate; 67-first clamping shaft; 68-first clamping plate; 69-first clamping shaft; 70-first clamping arm; 71-first clamping arm; 72-first clamping plate; 73-first clamping arm; 74-first clamping plate; 75-sliding shaft; 76-first clamping plate; 77-first clamping shaft; 78-first clamping shaft; 79-first clamping plate; 80-first clamping arm; 81-first clamping arm; 82-first clamping plate; 83-first clamping rod; 84-first clamping plate; 85-sliding shaft; 86-second clamping arm; 87-first clamping arm; 88-first clamping plate; 89-first clamping shaft; 90-second clamping arm; 91-first clamping arm; 92-first clamping plate; 93-first clamping rod; 94-first clamping plate; 95-sliding shaft; 96-second clamping arm; 97-second clamping arm; 98-second clamping arm; 99-second clamping plate; 10-filling port; 11-bag clamp; 20-convex conveyor belt; 12-convex conveyor belt; 13-convex conveyor belt; 14- 51-rotating slide; 66-twisting wheel; 661-shift rod; 662-sliding block; 67-anti-lock spring; 70-second clamping arm; 71-second sleeve; 72-second pressure plate; 73-second bending rod; 74-second clamping plate; 80-elastic support rod; 81-internal connecting rod; 811-limiting block; 82-external connecting tube; 821-annular plug; 83-pressure spring; 90-linkage plate; 91-straight notch; 100-tension spring; 110-connecting rod. DETAILED DESCRIPTION

[0032] The specific implementation methods of the present invention will be clearly and completely described below in conjunction with the accompanying drawings.

[0033] It should be noted that in the following description, the directions or positions indicated by the terms "left side", "left end", "right side", "right end", "left", "right", etc. are based on the directions or positions shown in the accompanying drawings, and are only used to express the relative positional relationship of each structure, rather than indicating or implying that the structure referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the scope of protection of the present invention.

[0034] like Figure 1-Figure 8 As shown, a bagged fertilizer filling and sealing auxiliary device includes a first guardrail 40, a second guardrail 50, a first clamping arm 60, a second clamping arm 70 and an elastic support rod 80. The first guardrail 40 and the second guardrail 50 are respectively fixedly arranged on both sides of the conveyor belt 20, so that the right ends of the first guardrail 40 and the second guardrail 50 are located below the filling port 10, so that the bagged fertilizer can be kept upright when moving on the conveyor belt 20 to prevent the bagged fertilizer from tipping over. A first sliding rod 41 is fixedly arranged between the left and right ends of the bottom of the first guardrail 40, and a second sliding rod 51 is fixedly arranged between the left and right ends of the bottom of the second guardrail 50. The first sliding rod 41 and the second sliding rod 51 are both parallel to the conveyor belt 20.

[0035] The first clamping arm 60 includes a first sleeve 61, a first pressure plate 62, a first bent rod 63 and a first clamping plate 64. The first sleeve 61 is slidably sleeved on the first sliding rod 41. The first pressure plate 62 is fixedly connected to the first sleeve 61 on the side facing the second guardrail 50. The first bent rod 63 bypasses the outside of the first guardrail 40, and its lower end is fixedly connected to the first sleeve 61. The first clamping plate 64 is arranged at the upper end of the first bent rod 63. Through the above-mentioned structural arrangement, the first clamping arm 60 can both rotate axially around the first sliding rod 41 and slide axially along the first sliding rod 41.

[0036] The second clamping arm 70 includes a second sleeve 71, a second pressure plate 72, a second bent rod 73 and a second clamping plate 74. The second sleeve 71 is slidably sleeved on the second sliding rod 51. The second pressure plate 72 is fixedly connected to the second sleeve 71 on the side facing the first guardrail 40. The second bent rod 73 bypasses the outside of the second guardrail 50, and its lower end is fixedly connected to the second sleeve 71. The second clamping plate 74 is arranged at the upper end of the second bent rod 73. Through the above-mentioned structural arrangement, the second clamping arm 70 can both rotate axially around the second sliding rod 51 and slide axially along the second sliding rod 51.

[0037] The elastic support rod 80 is arranged on the right side of the first clamping arm 60 and the second clamping arm 70, and is hinged with the first clamping arm 60 and the second clamping arm 70 respectively. The elastic support rod 80 includes an inner connecting rod 81, an outer connecting rod 82 and a pressure spring 83. The inner connecting rod 81 is slidably connected to the inside of the outer connecting rod 82, and a pressure spring 83 is arranged inside the outer connecting rod 82. One end of the pressure spring 83 is connected to the end face of the inner connecting rod 81, and the other end is connected to the inner side face of the outer connecting rod 82. One end of the inner connecting rod 81 located inside the outer connecting rod 82 is fixedly connected to the limiting block 811, and the corresponding end of the external connecting rod 82 is fixedly connected to the annular plug 821.

[0038] By utilizing the structure of the elastic support rod 80, the first clamping arm 60 and the second clamping arm 70 maintain a tendency to flip outward and separate at a certain angle, so that the first pressure plate 62 and the second pressure plate 72 are tilted upward, and the first clamping plate 64 and the second clamping plate 74 are separated by a certain distance. After the bagged fertilizer is filled at the filling port 10, the bag clamp 11 on the filling port is opened, and the bagged fertilizer falls onto the first pressure plate 62 and the second pressure plate 72, pressing the first clamping arm 60 and the second clamping arm 70 to flip inward, and the first clamping plate 64 and the second clamping plate 74 are close to each other, clamping the bag mouth in a straight line.

[0039] The middle of the bottom surface of the bagged fertilizer contacts the conveyor belt 20, and the conveyor belt 20 drives the bagged fertilizer to move to the left. Both sides of the bottom surface of the bagged fertilizer contact the first pressing plate 62 and the second pressing plate 72. The first pressing plate 62 and the second pressing plate 72 are squeezed between the bagged fertilizer and the conveyor belt 20. Under the action of friction, the first clamping arm 60 and the second clamping arm 70 move to the left synchronously.

[0040] When the first clamping arm 60 and the second clamping arm 70 reach the left end of the first guardrail 40 and the second guardrail 50, they are blocked by the first guardrail 40 and the second guardrail 50, and the first clamping arm 60 and the second clamping arm 70 stop moving to the left. Since the friction between the conveyor belt 20 and the bagged fertilizer is greater than the friction between the first pressing plate 62 and the second pressing plate 72 and the bagged fertilizer, the bagged fertilizer continues to move to the left and detaches from the first pressing plate 62 and the second pressing plate 72, and the bag mouth enters the working position of the bag sewing machine 30 for sewing.

[0041] A connecting rod 110 is fixedly connected between the right end of the first guardrail 40 and the right end of the second guardrail 50, and a tension spring 100 is connected between the elastic support rod 80 and the connecting rod 110. When the bagged fertilizer is moved out from the first pressure plate 62 and the second pressure plate 72, the first clamping arm 60 and the second clamping arm 70 are pulled back by the tension spring 100 to the bottom of the right end filling port 10 to reset. At the same time, under the elastic force of the elastic support rod 80, the first clamping arm 60 and the second clamping arm 70 are flipped outward, and the first clamping plate 64 and the second clamping plate 74 are separated by a certain distance to facilitate the next bag of bagged fertilizer to fall. Such a reciprocating cycle can realize the automatic arrangement of the bag mouth of the bagged fertilizer, so that the bag mouth automatically enters the working position of the bag sewing machine 30.

[0042] In order to reduce the impact force on the first guardrail 40 and the second guardrail 50 when the first clamping arm 60 and the second clamping arm 70 are reset to the right end, a first buffer pad 43 is provided at the right end of the first sliding rod 41, and a second buffer pad 53 is provided at the right end of the second sliding rod 51, which is beneficial to increase the service life of the device.

[0043] The left end of the first guardrail 40 is connected to the first guide plate 42, and the left end of the second guardrail 50 is connected to the second guide plate 52. The first guide plate 42 and the second guide plate 52 are arranged in parallel and spaced apart. The first guide plate 42 and the second guide plate 52 form a channel for the bag opening to move, and the channel outlet corresponds to the working position of the bag sewing machine 30.

[0044] The first clamping plate 64 and the first bending rod 63 are slidably arranged, and an anti-lock spring 67 is connected between the first clamping plate 64 and the first bending rod 63. The connection structure between the second clamping plate 74 and the second bending rod 73 is the same as the above structure. Through such a connection structure, it is possible to avoid the problem that the first clamping plate 64 and the second clamping plate 74 squeeze the bag opening too tightly, resulting in the bag opening being unable to slide out from between the first clamping plate 64 and the second clamping plate 74.

[0045] Based on the above structure, functions can be further added. The right end of the first clamping plate 64 is fixedly connected to a sliding shaft 65, and a torsion wheel 66 is slidably connected to the sliding shaft 65. A lever 661 is fixedly connected to the left side of the torsion wheel 66, and a linkage plate 90 is movably connected between the torsion wheel 66 and the first guardrail 40.

[0046] An annular groove 44 is provided at the right end of the first guardrail 40, and a straight slot 91 is opened on the linkage plate 90. The straight slot 91 and the annular groove 44 are engaged with each other, so that the linkage plate 90 can both rotate and slide in the annular groove 44, but cannot move to the left along the first guardrail 40. One end of the linkage plate 90 is rotatably connected to the torsion wheel 66. When the sliding shaft 65 moves to the left with the first clamping plate 64, the torsion wheel 66 is restricted by the linkage plate 90 and cannot move to the left, and generates relative sliding with the sliding shaft 65.

[0047] The sliding shaft 65 is provided with a rotating groove 651 that can rotate 180°, and a sliding block 662 is fixedly provided on the inner side of the torsion wheel 66. The sliding block 662 is slidably set in the rotating groove 651. When the sliding shaft 65 slides to the left, it drives the torsion wheel 66 and the lever 661 thereon to flip 180° from the side of the first clamping plate 64 to the side of the second clamping plate 74, so as to fold the bag opening clamped between the first clamping plate 64 and the second clamping plate 74. When the sliding shaft 65 moves to the right to reset, it drives the torsion wheel 66 and the lever 661 thereon to flip 180° in the opposite direction to reset.

[0048] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed for protection.

Claims

1. A bagged fertilizer filling and sealing auxiliary device, characterized in that: The invention comprises a first guardrail (40), a second guardrail (50), a first clamping arm (60), a second clamping arm (70) and an elastic support rod (80), wherein a first sliding rod (41) is fixedly arranged at the bottom of the first guardrail (40), and a second sliding rod (51) is fixedly arranged at the bottom of the second guardrail (50); The first clamping arm (60) comprises a first sleeve (61), a first pressure plate (62), a first bent rod (63) and a first clamping plate (64); the first sleeve (61) is sleeved on the first sliding rod (41); the first pressure plate (62) is fixedly connected to the first sleeve (61) on a side facing the second guardrail (50); the lower end of the first bent rod (63) is fixedly connected to the first sleeve (61); and the first clamping plate (64) is arranged on the upper end of the first bent rod (63); The second clamping arm (70) comprises a second sleeve (71), a second pressure plate (72), a second curved rod (73) and a second clamping plate (74); the second sleeve (71) is sleeved on the second sliding rod (51); the second pressure plate (72) is fixedly connected to a side of the second sleeve (71) facing the first guardrail (40); the lower end of the second curved rod (73) is fixedly connected to the second sleeve (71); and the second clamping plate (74) is arranged on the upper end of the second curved rod (73); The elastic support rod (80) is arranged on the right side of the first clamping arm (60) and the second clamping arm (70), and the elastic support rod (80) is hinged to the first clamping arm (60) and the second clamping arm (70) respectively; The elastic support rod (80) comprises an inner connecting rod (81), an outer connecting tube (82) and a pressure spring (83); the inner connecting rod (81) is slidably connected to the inside of the outer connecting tube (82); a pressure spring (83) is arranged inside the outer connecting tube (82); one end of the pressure spring (83) is connected to the end surface of the inner connecting rod (81) and the other end is connected to the inner side surface of the outer connecting tube (82); One end of the inner connecting rod (81) located inside the outer connecting tube (82) is fixedly connected to a limiting block (811), and the corresponding end of the outer connecting tube (82) is fixedly connected to an annular plug (821); The right end of the first clamping plate (64) is fixedly connected to a sliding shaft (65), a torsion wheel (66) is slidably connected to the sliding shaft (65), a lever (661) is fixedly connected to the left side of the torsion wheel (66), and the torsion wheel (66) is movably connected to the first guardrail (40) via a linkage plate (90); A rotating slide groove (651) is provided on the sliding shaft (65), a sliding block (662) is fixedly provided on the inner side of the twisting wheel (66), and the sliding block (662) is slidably matched with the rotating slide groove (651); An annular groove (44) is provided at the right end of the first guardrail (40), a straight notch (91) is provided on the linkage plate (90), the straight notch (91) and the annular groove (44) are engaged with each other, and one end of the linkage plate (90) is rotatably connected to the twisting wheel (66).

2. The bagged fertilizer filling and sealing auxiliary device according to claim 1, characterized in that: A connecting rod (110) is fixedly connected between the right end of the first guardrail (40) and the right end of the second guardrail (50), and a tension spring (100) is connected between the elastic support rod (80) and the connecting rod (110).

3. The bagged fertilizer filling and sealing auxiliary device according to claim 1 is characterized in that: A first buffer pad (43) is provided at the right end of the first sliding rod (41), and a second buffer pad (53) is provided at the right end of the second sliding rod (51).

4. The bagged fertilizer filling and sealing auxiliary device according to claim 1 is characterized by: The left end of the first guardrail (40) is connected to a first guide plate (42), the left end of the second guardrail (50) is connected to a second guide plate (52), and the first guide plate (42) and the second guide plate (52) are arranged in parallel and spaced apart.

5. The bagged fertilizer filling and sealing auxiliary device according to claim 1 is characterized by: The first clamping plate (64) and the first curved rod (63) are slidably arranged, and an anti-lock spring (67) is connected between the first clamping plate (64) and the first curved rod (63); The second clamping plate (74) and the second curved rod (73) are slidably arranged, and an anti-lock spring is connected between the second clamping plate (74) and the second curved rod (73).

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