A top and bottom reciprocating pinch seal mechanism

Abstract

The utility model discloses a kind of up-down reciprocating type clamping and pressing longitudinal sealing mechanism, including base plate and mobile seat movably arranged on base plate, first drive mechanism is provided on base plate for driving mobile seat reciprocating movement along vertical direction, fixed mounting plate and movable mounting plate are provided on mobile seat, first heating sealing roller assembly is fixedly provided on fixed mounting plate, second heating sealing roller assembly is fixedly provided on movable mounting plate, second drive mechanism is provided on mobile seat for driving movable mounting plate reciprocating movement along horizontal direction.The up-down reciprocating type clamping and pressing longitudinal sealing mechanism has the advantages of compact structure, strong continuous working ability, good running stability, can effectively improve production efficiency.

Description

Technical Field

[0001] This utility model relates to the field of packaging equipment technology, specifically to a reciprocating clamping and sealing mechanism. Background Technology

[0002] A longitudinal sealing packaging machine is an automated packaging device that forms a continuous, sealed edge on the packaging material in the longitudinal direction, creating the back seal or center seam of the packaging bag. Currently, most longitudinal sealing mechanisms are fixedly mounted on a frame. Two sets of heat sealing heads approach each other to heat-press and seal a section of packaging material, then open to allow the next section of packaging material to be conveyed and heat-pressed and sealed again. This intermittent heat-pressing operation has low production efficiency and certain limitations. Utility Model Content

[0003] The technical problem to be solved by this utility model is to overcome the shortcomings of the existing technology and provide a reciprocating clamping longitudinal sealing mechanism with a compact structure, strong continuous working ability, good operational stability, and effective improvement of production efficiency.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: A reciprocating clamping and sealing mechanism includes a base plate and a movable seat movably disposed on the base plate. The base plate is provided with a first driving mechanism for driving the movable seat to reciprocate in a vertical direction. The movable seat is provided with a fixed mounting plate and a movable mounting plate. A first heating sealing roller assembly is fixedly disposed on the fixed mounting plate, and a second heating sealing roller assembly is fixedly disposed on the movable mounting plate. The movable seat is provided with a second driving mechanism for driving the movable mounting plate to reciprocate in a horizontal direction.

[0005] As a further improvement to the above technical solution: The movable base is slidably connected to the base plate via a sliding connection mechanism. The sliding connection mechanism includes a guide rail fixedly disposed on the base plate and a slider fixedly disposed on the movable base, with the slider slidingly connected to the guide rail.

[0006] The first driving mechanism includes a lead screw rotatably mounted on the base plate, a lead screw nut seat fixedly mounted on the movable seat, and a drive motor for driving the lead screw to rotate. The lead screw nut seat is threadedly connected to the lead screw.

[0007] The second drive mechanism includes a telescopic cylinder, the cylinder body of which is fixedly connected to the movable seat, and the piston rod of which is fixedly connected to the movable mounting plate.

[0008] The first heating sealing roller assembly and the second heating sealing roller assembly have the same structure, both including a sealing roller block and a heating tube inserted inside the sealing roller block.

[0009] Compared with the prior art, the advantages of this utility model are: This utility model's reciprocating clamping and sealing mechanism uses a second driving mechanism to move the second heating sealing roller assembly closer to the first heating sealing roller assembly, performing heat-sealing on the packaging material. Simultaneously, the first driving mechanism drives the moving seat to move downwards along with the packaging material. The second and first heating sealing roller assemblies remain relatively stationary with the packaging material, extending the heat-sealing clamping time. Then, the second driving mechanism drives the second heating sealing roller assembly to reset and release the heat-sealing, while the first driving mechanism drives the moving seat to reset upwards and follow the next section of packaging material. This mechanism enables continuous conveying and heat-sealing of packaging materials, featuring a compact structure, strong continuous working capability, and good operational stability, effectively improving production efficiency. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of a reciprocating clamping longitudinal sealing mechanism.

[0011] Figure 2 This is a schematic diagram showing the disassembly of a reciprocating clamping longitudinal sealing mechanism.

[0012] Figure 3 This is a front view of the movable base and its components.

[0013] Figure 4 This is a schematic diagram showing the disassembled heating sealing roller assembly.

[0014] Legend: 1. Base plate; 2. Movable seat; 201. Fixed mounting plate; 202. Movable mounting plate; 3. First drive mechanism; 301. Lead screw; 302. Lead screw nut seat; 303. Drive motor; 4. First heating sealing roller assembly; 401. Sealing roller block; 402. Heating tube; 5. Second heating sealing roller assembly; 6. Second drive mechanism; 7. Sliding connection mechanism; 701. Guide rail; 702. Slider. Detailed Implementation

[0015] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0016] like Figures 1 to 4As shown, the reciprocating clamping and sealing mechanism of this embodiment includes a base plate 1 and a movable seat 2 movably disposed on the base plate 1. The base plate 1 is provided with a first driving mechanism 3 for driving the movable seat 2 to reciprocate in the vertical direction. The movable seat 2 is provided with a fixed mounting plate 201 and a movable mounting plate 202. A first heating sealing roller assembly 4 is fixedly disposed on the fixed mounting plate 201, and a second heating sealing roller assembly 5 is fixedly disposed on the movable mounting plate 202. The movable seat 2 is provided with a second driving mechanism 6 for driving the movable mounting plate 202 to reciprocate in the horizontal direction. This reciprocating clamping and sealing mechanism uses a second drive mechanism 6 to drive the second heating sealing roller assembly 5 closer to the first heating sealing roller assembly 4 to perform heat-sealing on the packaging material. At the same time, the first drive mechanism 3 drives the moving seat 2 to move downwards along with the packaging material. The second heating sealing roller assembly 5 and the first heating sealing roller assembly 4 remain relatively stationary with the packaging material, extending the heat-sealing clamping time. Then, the second drive mechanism 6 drives the second heating sealing roller assembly 5 to reset and release the heat-sealing, and the first drive mechanism 3 drives the moving seat 2 to reset and follow the next section of packaging material. This mechanism enables continuous conveying and heat-sealing of packaging materials, and has the advantages of compact structure, strong continuous working capability, and good operational stability, effectively improving production efficiency.

[0017] Preferably, the movable seat 2 is slidably connected to the base plate 1 via a sliding connection mechanism 7. The sliding connection mechanism 7 includes a guide rail 701 fixedly disposed on the base plate 1 and a slider 702 fixedly disposed on the movable seat 2. The slider 702 is slidably connected to the guide rail 701.

[0018] Preferably, the first driving mechanism 3 includes a lead screw 301 rotatably mounted on the base plate 1, a lead screw nut seat 302 fixedly mounted on the movable seat 2, and a drive motor 303 for driving the lead screw 301 to rotate. The lead screw nut seat 302 is threadedly connected to the lead screw 301. In this embodiment, the first driving mechanism 3 adopts a lead screw transmission mechanism, which has the advantages of high stroke accuracy, good running stability, and strong load-bearing capacity. In other embodiments, the first driving mechanism 3 can also adopt components with reciprocating movement functions such as synchronous belt transmission mechanism, chain transmission mechanism, and gear and rack mechanism, and is not limited to this embodiment.

[0019] Preferably, the second drive mechanism 6 includes a telescopic cylinder, the cylinder body of which is fixedly connected to the movable base 2, and the piston rod of which is fixedly connected to the movable mounting plate 202. In this embodiment, the second drive mechanism 6 adopts the form of a telescopic cylinder, which has the advantages of simple structure, convenient and quick assembly and disassembly, long service life, and low cost. In other embodiments, the second drive mechanism 6 can also adopt components with reciprocating movement functions such as electric cylinders, hydraulic cylinders, and gear and rack mechanisms, and is not limited to this embodiment.

[0020] Preferably, the first heating sealing roller assembly 4 and the second heating sealing roller assembly 5 have the same structure, both including a sealing roller block 401 and a heating tube 402 passing through the sealing roller block 401, which is simple and compact.

[0021] The above description is merely a preferred embodiment of this utility model, and the protection scope of this utility model is not limited to the above embodiments. For those skilled in the art, improvements and modifications obtained without departing from the technical concept of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A reciprocating clamping longitudinal sealing mechanism, characterized in that, The device includes a base plate (1) and a movable seat (2) movably disposed on the base plate (1). The base plate (1) is provided with a first driving mechanism (3) for driving the movable seat (2) to reciprocate in the vertical direction. The movable seat (2) is provided with a fixed mounting plate (201) and a movable mounting plate (202). The fixed mounting plate (201) is fixedly provided with a first heating sealing roller assembly (4). The movable mounting plate (202) is fixedly provided with a second heating sealing roller assembly (5). The movable seat (2) is provided with a second driving mechanism (6) for driving the movable mounting plate (202) to reciprocate in the horizontal direction.

2. The reciprocating clamping longitudinal sealing mechanism according to claim 1, characterized in that, The movable seat (2) is slidably connected to the base plate (1) via a sliding connection mechanism (7). The sliding connection mechanism (7) includes a guide rail (701) fixedly disposed on the base plate (1) and a slider (702) fixedly disposed on the movable seat (2). The slider (702) slides on the guide rail (701).

3. The reciprocating clamping longitudinal sealing mechanism according to claim 1, characterized in that, The first driving mechanism (3) includes a lead screw (301) rotatably mounted on the base plate (1), a lead screw nut seat (302) fixedly mounted on the movable seat (2), and a drive motor (303) for driving the lead screw (301) to rotate. The lead screw nut seat (302) is threadedly connected to the lead screw (301).

4. The reciprocating clamping longitudinal sealing mechanism according to claim 1, characterized in that, The second drive mechanism (6) includes a telescopic cylinder, the cylinder body of which is fixedly connected to the movable seat (2), and the piston rod of which is fixedly connected to the movable mounting plate (202).

5. The reciprocating clamping longitudinal sealing mechanism according to claim 1, characterized in that, The first heating sealing roller assembly (4) and the second heating sealing roller assembly (5) have the same structure, both including a sealing roller block (401) and a heating tube (402) inserted inside the sealing roller block (401).

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