Longitudinal sealing part adjusting mechanism

Abstract

The utility model provides a longitudinal sealing part adjusting mechanism, which relates to the technical field of food packaging and comprises two sealing plates, a heat insulation plate is fixedly connected onto the sealing plates, a push plate is fixedly connected onto the heat insulation plate, adjusting plates are arranged on the push plate, a sealing structure is jointly arranged on the two adjusting plates, and the sealing structure is arranged on the sealing plate. The sealing structure is mainly composed of a sealing block, the sealing block is arranged on the adjusting plates, two driving blocks are connected to the sealing block in a sliding mode, the two driving blocks are fixedly connected with the two adjusting plates, an air cylinder is fixedly connected to the sealing block, a piston rod of the air cylinder is fixedly connected with a pushing block, and the pushing block is fixedly connected to the piston rod of the air cylinder. The longitudinal sealing device solves the problem that due to the fact that the two longitudinal sealing arms are connected through a hinge shaft and are similar to a scissor-shaped structure, the positions of the two sealing faces of the longitudinal sealing arms are difficult to be parallel, and the sealing effect of the longitudinal sealing arms is poor due to the fact that the positions of the two sealing faces of the longitudinal sealing arms are difficult to be parallel through the scissor-shaped structure.

Description

Technical Field

[0001] The utility model relates to the technical field of food packaging, in particular to a longitudinal sealing part adjusting mechanism. Background Art

[0002] A packaging machine is a mechanical device used to automatically load products into containers or packaging materials and complete a series of packaging processes such as sealing, labeling, and printing. It is widely used in food, medicine, chemicals, hardware, electronics and other industries to improve packaging efficiency, ensure product quality and extend shelf life. The longitudinal sealing part is the part of the packaging machine responsible for sealing along the length of the packaging material.

[0003] At present, the longitudinal sealing mechanism of the packaging machine mostly achieves the purpose of sealing by rotating the machine main shaft, which drives the cam to rotate, and makes the two sealing surfaces of the longitudinal sealer contact through the longitudinal sealing arm. However, this structure is similar to a scissor-like structure because the two longitudinal sealing arms are connected by a hinge shaft. This structure makes it difficult to make the positions of the two sealing surfaces parallel, resulting in poor sealing effect. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes a longitudinal sealing portion adjusting mechanism.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a longitudinal sealing part adjustment mechanism, including two sealing plates, a heat insulation plate is fixedly connected to the sealing plate, a push plate is fixedly connected to the heat insulation plate, an adjustment plate is arranged on the push plate, a sealing structure is arranged on the two adjustment plates, and the sealing structure is mainly composed of a sealing block, the sealing block is arranged on the adjustment plate, two driving blocks are slidably connected to the sealing block, the two driving blocks are fixedly connected to the two adjustment plates, a cylinder is fixedly connected to the sealing block, a push block is fixedly connected to the piston rod of the cylinder, and the push block is slidably connected to the two driving blocks.

[0006] The effects achieved by the above components are: starting the cylinder, the piston rod of the cylinder pushes the push block or pulls the push block to drive the two driving blocks to move away or closer synchronously, the two driving blocks can drive the two adjusting plates to move away or closer to each other, and then drive the two sealing plates to move away or closer to each other, the two sealing plates are parallel to each other to seal the packaging bag, and one cylinder drives the two adjusting plates more stably to prevent the two sealing plates from misaligning, thereby avoiding the situation where the two longitudinal sealing arms are connected by a hinged shaft, similar to a scissors-like structure, which makes it difficult to make the positions of the two sealing surfaces parallel, resulting in poor sealing effect.

[0007] Preferably, two sliding blocks are fixedly connected to the driving block, two sliding grooves are provided on the sealing block, and the sliding blocks are slidably connected to the sliding grooves.

[0008] The effect achieved by the above components is that the two sliders slide in limited positions in the slide grooves, making the sliding process of the two driving blocks more stable.

[0009] Preferably, a sliding groove is provided on the driving block, and two sliding blocks are fixedly connected to the pushing block, and the sliding blocks are slidably connected to the sliding groove.

[0010] The effect achieved by the above components is that the two sliding blocks slide in limited positions in the sliding grooves, so that the sliding between the driving block and the pushing block is more stable.

[0011] Preferably, two limiting blocks are fixedly connected to the sealing plate, two limiting grooves are formed on the sealing block, and the limiting grooves are slidably connected to the limiting blocks.

[0012] The effect achieved by the above components is that the two limiting blocks slide in the limiting grooves, which can make the sliding process of the sealing plate more stable, thereby further improving the sealing stability.

[0013] Preferably, the push plate is provided with an adjustment structure, and the adjustment structure is mainly composed of two sliding rods, the two sliding rods are fixedly connected to the push plate, and the two sliding rods are slidably connected to the adjustment plate.

[0014] The effect achieved by the above components is that the distance between the adjusting plate and the pushing plate can be adjusted by sliding the slide rod, thereby changing the position of the sealing plate to achieve a better sealing effect.

[0015] Preferably, the slide bar is provided with a plurality of circular holes, the adjustment plate is provided with two slots, and the slots are provided with limit rods.

[0016] The effect achieved by the above components is: when the position of the slide bar is adjusted, the limit rod is inserted into the slot and simultaneously inserted into the corresponding round hole, so that the slide bar can be limited and the position of the slide bar is more stable.

[0017] Preferably, a telescopic rod is fixedly connected to the adjusting plate, a connecting rod is fixedly connected to the telescopic rod, and the connecting rod is fixedly connected to the two limiting rods.

[0018] The effect achieved by the above components is that the two limit rods can be moved synchronously by pushing or pulling the connecting rod, making the limit operation more convenient.

[0019] Preferably, a spring is sleeved on the telescopic rod, one end of the spring is fixedly connected to the connecting rod, and the other end of the spring is fixedly connected to the adjusting plate.

[0020] The effect achieved by the above components is: when the limit rod is inserted into the round hole, the spring is in a stretched state, so the rebound elastic force of the spring acts on the connecting rod, making the connection between the limit rod and the round hole more stable, further improving the stability of the slide rod position.

[0021] Compared with the prior art, the advantages and positive effects of the utility model are that, in the utility model, by setting a sealing structure and starting the cylinder, the piston rod of the cylinder pushes the pushing block or pulls the pushing block to drive the two driving blocks to move away or closer synchronously, the two driving blocks can drive the two adjusting plates to move away or closer to each other, and then drive the two sealing plates to move away or closer to each other, the two sealing plates are parallel to each other to seal the packaging bag, and one cylinder drives the two adjusting plates more stably to prevent the two sealing plates from misaligning, the two sliders slide in the sliding groove to limit the sliding process of the two driving blocks, the two sliding blocks slide in the sliding groove to limit the sliding process, the sliding between the driving block and the pushing block is more stable, the two limiting blocks slide in the limiting groove to limit the sliding process of the sealing plate, which can further improve the sealing stability, thereby avoiding the situation that the two longitudinal sealing arms are connected by a hinge shaft, similar to a scissors-like structure, which makes it difficult to make the positions of the two sealing surfaces parallel, resulting in poor sealing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A three-dimensional structural schematic diagram of a longitudinal sealing part adjustment mechanism is proposed for the utility model;

[0023] Figure 2 A three-dimensional structural diagram of another perspective of a longitudinal sealing portion adjustment mechanism proposed by the utility model;

[0024] Figure 3 A top view of a longitudinal sealing portion adjustment mechanism is provided for the utility model;

[0025] Figure 4 The utility model provides a partial schematic diagram of the adjustment structure of the longitudinal sealing part adjustment mechanism.

[0026] Legend: 1. Sealing plate; 2. Heat insulation plate; 3. Push plate; 4. Adjusting plate; 5. Sealing structure; 51. Sealing block; 52. Driving block; 53. Pushing block; 54. Cylinder; 55. Slider; 56. Slide groove; 57. Sliding groove; 58. Sliding block; 59. Limiting block; 510. Limiting groove; 6. Adjusting structure; 61. Sliding rod; 62. Round hole; 63. Telescopic rod; 64. Connecting rod; 65. Slot; 66. Limiting rod; 67. Spring. DETAILED DESCRIPTION

[0027] Embodiment 1, as Figure 1As shown, a longitudinal sealing part adjustment mechanism comprises two sealing plates 1, the sealing plates 1 are fixedly connected with heat insulating plates 2, the heat insulating plates 2 are fixedly connected with push plates 3, and the push plates 3 are provided with adjustment plates 4.

[0028] Reference Figures 1 to 3 , a sealing structure 5 is commonly provided on the two adjusting plates 4, and the sealing structure 5 is mainly composed of a sealing block 51, which is provided on the adjusting plate 4, and two driving blocks 52 are slidably connected to the sealing block 51, and the two driving blocks 52 are fixedly connected to the two adjusting plates 4, and a cylinder 54 is fixedly connected to the sealing block 51, and a pushing block 53 is fixedly connected to the piston rod of the cylinder 54, and the pushing block 53 is slidably connected to the two driving blocks 52, and the cylinder 54 is started, and the piston rod of the cylinder 54 pushes the pushing block 53 or pulls the pushing block 53 to drive the two driving blocks 52 to move away or approach synchronously, and the two driving blocks 52 can drive the two adjusting plates 4 to move away from or approach each other, and then drive the two sealing plates 1 to move away from or approach each other, and the two sealing plates 1 are parallel to each other to seal the packaging bag, and one cylinder 54 drives the two adjusting plates 4 to be more stable, and prevents the two sealing plates 1 from misaligning, thereby avoiding the two longitudinal sealing arms being connected by a hinge shaft, which is similar to a scissor-like structure, This structure will make it difficult to make the positions of its two sealing surfaces parallel, resulting in a poor sealing effect. Two sliders 55 are fixedly connected to the driving block 52, and two sliding grooves 56 are provided on the sealing block 51. The sliders 55 are slidably connected to the sliding grooves 56. The two sliders 55 slide in the sliding grooves 56 to limit the sliding, so that the sliding process of the two driving blocks 52 is more stable. The driving block 52 is provided with a sliding groove 57. Two sliding blocks 58 are fixedly connected to the pushing block 53. The sliding block 58 is slidably connected to the sliding groove 57. The two sliding blocks 58 slide in the sliding groove 57 to limit the sliding, so that the sliding between the driving block 52 and the pushing block 53 is more stable. Two limiting blocks 59 are fixedly connected to the sealing plate 1, and two limiting grooves 510 are provided on the sealing block 51. The limiting grooves 510 are slidably connected to the limiting blocks 59. The two limiting blocks 59 slide in the limiting grooves 510 to limit the sliding, which can make the sliding process of the sealing plate 1 more stable, thereby further improving the sealing stability.

[0029] Reference Figures 2 to 4, an adjustment structure 6 is provided on the push plate 3, and the adjustment structure 6 is mainly composed of two slide bars 61, the two slide bars 61 are fixedly connected to the push plate 3, and the two slide bars 61 are slidably connected to the adjustment plate 4. The distance between the adjustment plate 4 and the push plate 3 can be adjusted by sliding the slide bars 61, thereby changing the position of the sealing plate 1, so that the sealing effect is better. A plurality of round holes 62 are provided on the slide bar 61, and two card slots 65 are provided on the adjustment plate 4. A limiting rod 66 is provided in the card slot 65. When the position of the slide bar 61 is adjusted, the limiting rod 66 is inserted into the card slot 65 and the corresponding round hole 62 at the same time, so that the slide bar 61 can be limited, so that the position of the slide bar 61 is more stable, and the adjustment A telescopic rod 63 is fixedly connected to the plate 4, and a connecting rod 64 is fixedly connected to the telescopic rod 63. The connecting rod 64 is fixedly connected to two limit rods 66. The two limit rods 66 can be moved synchronously by pushing or pulling the connecting rod 64, so that the limit operation is more convenient. A spring 67 is sleeved on the telescopic rod 63, one end of the spring 67 is fixedly connected to the connecting rod 64, and the other end of the spring 67 is fixedly connected to the adjusting plate 4. When the limit rod 66 is inserted into the circular hole 62, the spring 67 is in a stretched state, so the rebound elastic force of the spring 67 acts on the connecting rod 64, so that the connection between the limit rod 66 and the circular hole 62 is more stable, further improving the stability of the position of the sliding rod 61.

[0030] The working principle is to start the cylinder 54, and the piston rod of the cylinder 54 pushes the pushing block 53 or pulls the pushing block 53 to drive the two driving blocks 52 to move away or closer synchronously. The two driving blocks 52 can drive the two adjusting plates 4 to move away or closer to each other, and then drive the two sealing plates 1 to move away or closer to each other. The two sealing plates 1 are parallel to each other to seal the packaging bag, and one cylinder 54 drives the two adjusting plates 4 to be more stable, preventing the two sealing plates 1 from misaligning, thereby avoiding the situation that the two longitudinal sealing arms are connected by a hinge shaft, which is similar to a scissor-like structure. This structure makes it difficult for the positions of the two sealing surfaces to be parallel, resulting in poor sealing effect. The two sliders 55 slide in the sliding groove 56 to make the sliding process of the two driving blocks 52 more stable. The two sliding blocks 58 slide in the sliding groove 57 to make the sliding between the driving block 52 and the pushing block 53 The movement is more stable. The two limit blocks 59 slide in the limit grooves 510, which can make the sliding process of the sealing plate 1 more stable, thereby further improving the sealing stability. The distance between the adjusting plate 4 and the push plate 3 can be adjusted by sliding the slide bar 61, thereby changing the position of the sealing plate 1, so that the sealing effect is better. When the position of the slide bar 61 is adjusted, the limit rod 66 is inserted into the slot 65 and the corresponding round hole 62 at the same time, which can limit the slide bar 61, so that the position of the slide bar 61 is more stable. The two limit rods 66 can be moved synchronously by pushing or pulling the connecting rod 64, so that the limiting operation is more convenient. When the limit rod 66 is inserted into the round hole 62, the spring 67 is in a stretched state, so the rebound elastic force of the spring 67 acts on the connecting rod 64, so that the connection between the limit rod 66 and the round hole 62 is more stable, further improving the stability of the position of the slide bar 61.

[0031] The above is only a preferred embodiment of the utility model, and does not limit the utility model in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the utility model without departing from the technical solution of the utility model still belongs to the protection scope of the technical solution of the utility model. In the description of the utility model, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the utility model can be understood by specific circumstances.

Claims

1. A longitudinal sealing portion adjustment mechanism, comprising two sealing plates (1), characterized in that: The sealing plate (1) is fixedly connected to a heat insulating plate (2), the heat insulating plate (2) is fixedly connected to a push plate (3), the push plate (3) is provided with an adjustment plate (4), the two adjustment plates (4) are jointly provided with a sealing structure (5), the sealing structure (5) mainly comprising a sealing block (51), the sealing block (51) being provided on the adjustment plate (4), the sealing block (51) being slidably connected to two driving blocks (52), the two driving blocks (52) being fixedly connected to the two adjustment plates (4), the sealing block (51) being fixedly connected to a cylinder (54), the piston rod of the cylinder (54) being fixedly connected to a push block (53), the push block (53) being slidably connected to the two driving blocks (52).

2. The longitudinal sealing portion adjustment mechanism according to claim 1, characterized in that: The driving block (52) is fixedly connected to two sliding blocks (55), the sealing block (51) is provided with two sliding grooves (56), and the sliding blocks (55) are slidably connected to the sliding grooves (56).

3. The longitudinal sealing portion adjustment mechanism according to claim 2, characterized in that: The driving block (52) is provided with a sliding groove (57), and the pushing block (53) is fixedly connected with two sliding blocks (58), and the sliding blocks (58) are slidably connected with the sliding groove (57).

4. The longitudinal sealing portion adjustment mechanism according to claim 3, characterized in that: Two limit blocks (59) are fixedly connected to the sealing plate (1), and two limit grooves (510) are provided on the sealing block (51), wherein the limit grooves (510) are slidably connected to the limit blocks (59).

5. The longitudinal sealing portion adjustment mechanism according to claim 4, characterized in that: The push plate (3) is provided with an adjustment structure (6), the adjustment structure (6) mainly consisting of two sliding rods (61), the two sliding rods (61) are fixedly connected to the push plate (3), and the two sliding rods (61) are slidably connected to the adjustment plate (4).

6. The longitudinal sealing portion adjustment mechanism according to claim 5, characterized in that: The slide bar (61) is provided with a plurality of circular holes (62), the adjustment plate (4) is provided with two slots (65), and a limit rod (66) is provided in the slot (65).

7. The longitudinal sealing portion adjustment mechanism according to claim 6, characterized in that: The adjustment plate (4) is fixedly connected to a telescopic rod (63), the telescopic rod (63) is fixedly connected to a connecting rod (64), and the connecting rod (64) is fixedly connected to the two limiting rods (66).

8. The longitudinal sealing portion adjustment mechanism according to claim 7, characterized in that: A spring (67) is sleeved on the telescopic rod (63), one end of the spring (67) is fixedly connected to the connecting rod (64), and the other end of the spring (67) is fixedly connected to the adjustment plate (4).

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