CN217477705U - Sealing mechanism of packaging bag - Google Patents

Abstract

The utility model discloses a sealing mechanism for a packaging bag, comprising a conveyor belt, baffles are fixedly installed on both sides of the top of the conveyor belt, mounting plates are fixedly installed on the top of the baffles, and the two baffles are located at the top of the conveyor belt. A narrow space is formed above the conveyor belt to keep the noodle packaging bag in a standing state, and the baffles play a supporting role on both sides. A leveling mechanism is installed below, a connecting block is fixedly connected to the middle positions of the two movable plates, a hot pressing block is fixedly installed on the inner side of the two connecting blocks, and the tops of the two movable plates are installed There is a driving mechanism to control the distance between the two movable plates, and a pressing plate is arranged below the hot pressing device, which can level the packaging bag before hot pressing to ensure the quality of the sealing.

Description

A sealing mechanism for packaging bags

technical field

The utility model relates to the technical field of product packaging, in particular to a sealing mechanism of a packaging bag.

Background technique

The sealing mechanism of the packaging bag replaces the manual hot-pressing welding of the mouth of the packaging bag, which effectively improves the production efficiency.

For example, the invention disclosed in Patent Publication No. CN107856917A discloses a tensioning mechanism for packaging bag sealing, comprising: a driving device, a first tensioning device and a second tensioning device, the driving device simultaneously drives the first tensioning device The tensioning device and the second tensioning device rotate. The present invention relates to a tensioning mechanism for the sealing of packaging bags, which is provided with a first tensioning device and a second tensioning device, and the two sides of the packaging bag are tensioned by the tensioning clips on the two tensioning devices, so that the tailor can The machine can quickly seal the bag mouth, the operation is simple and convenient, the speed is fast, and the sealing work can be quickly completed on the assembly line. However, the tightening process itself is easy to cause damage to the packaging bag, and at the same time, the tightening process easily causes the bag mouth to be offset, resulting in uneven welding of the bag mouth.

Utility model content

The purpose of this utility model is to provide a kind of sealing mechanism of packing bag, solve the following technical problems:

A leveling device is arranged below the hot-pressing welding device, and the bag mouth is leveled first, and then the sealing is welded to ensure the flatness of the sealing.

The purpose of the present utility model can be achieved through the following technical solutions: a sealing mechanism for a packaging bag, comprising a conveyor belt, baffles are fixedly installed on both sides of the top of the conveyor belt, and a mounting plate is fixedly installed on the top of the baffle, The two baffles form a narrow space above the conveyor belt to keep the noodle packaging bag in a standing state, while the baffles play a supporting role on both sides, and the tops of the two mounting plates are slidably connected with movable plates. A leveling mechanism is installed below the two movable plates, a connecting block is fixedly connected to the middle of the two movable plates, and a hot pressing block is fixedly installed on the inner side of the two connecting blocks. A driving mechanism is installed on the top of the movable plate for controlling the distance between the two movable plates.

As a further solution of the present utility model: the leveling mechanism includes a "U"-shaped block, the "U"-shaped block is fixedly installed at the position of the movable plate near the bottom, and the "U"-shaped block is slidably connected with two A sliding rod, one side of the two sliding rods is fixedly installed with a fixed block, the fixed block is fixed with an "L" shaped plate, and the sliding rod is located between the "U" shaped block and the fixed block The socket is provided with a spring, and the lower part of the movable plate is hollowed out to provide space for the movement of the fixed block.

As a further solution of the present utility model: one side of the "L"-shaped plate is rotatably connected with a pressure plate, when the two pressure plates are in contact, the packaging bag under the welding position can be flattened, and the lower end of the pressure plate is rotatably connected with a connecting plate Rod 1, a telescopic rod is rotatably connected to the bottom of the "L"-shaped plate, the connecting rod 1 and the telescopic rod are rotatably connected, and a cylinder is fixedly installed at the bottom of one side of the "L"-shaped plate, and the cylinder is The piston rod is rotatably connected with the connection between the connecting rod 1 and the telescopic rod.

As a further solution of the present utility model: the distance between the two pressing plates is smaller than the distance between the two hot pressing blocks, so as to ensure that when the two movable plates approach each other, the two pressing plates first contact the mouth of the packaging bag, and Flatten it.

As a further solution of the present invention: the drive mechanism includes a limit frame, the limit frame is arranged on the top of the two movable plates, and the two movable plates and the limit frame are movably connected, and the limit frame A motor is fixedly installed in the middle of one side of the motor, a threaded rod is fixedly installed on the output shaft of the motor, a movable block is threadedly connected to both sides of the threaded rod, and a connecting rod is rotatably connected to both sides of the movable block, so the The other side of the connecting rod is rotatably connected with one end of the top of the movable plate.

As a further solution of the present invention, the two ends of the threaded rod have opposite screw threads.

The beneficial effects of the present utility model:

The packaging bag is transported to the sealing position by the conveyor belt. Then, the motor works to drive the threaded rod to rotate, and the two movable blocks move to the middle point of the threaded rod, so that the movable plates on both sides move closer to the position of the threaded rod, thereby driving the leveling mechanism to approach each other. , the two "L"-shaped plates contact first, so that the sliding rod slides along the "U"-shaped block, the movable plates on both sides continue to move to the middle position, the cylinder works, pushes the two pressure plates to keep the vertical downward state, and the two The operator flattens the mouth of the bag until the two hot-pressing blocks are in contact to complete the sealing of the mouth of the bag.

Description of drawings

The utility model will be further described below in conjunction with the accompanying drawings.

Fig. 1 is the overall structure schematic diagram of the sealing mechanism in the present utility model;

Fig. 2 is the structure schematic diagram of the leveling mechanism of the present invention;

Figure 3 is a schematic diagram of the internal structure of the "L"-shaped plate of the present invention;

Figure 4 is a schematic structural diagram of the drive mechanism of the present invention.

In the figure: 1. Conveyor belt; 2. Baffle plate; 3. Mounting plate; 4. Leveling mechanism; 401, "U"-shaped block; 402, sliding rod; Fixed block; 406, cylinder; 407, pressure plate; 408, connecting rod one; 409, telescopic rod; 5, connecting block; 6, movable plate; 7, hot pressing block; 8, driving mechanism; 801, limit frame; 802 , motor; 803, threaded rod; 804, connecting rod; 805, movable block.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the implementations. example. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

Please refer to FIG. 1 , the present invention is a sealing mechanism for packaging bags, comprising a conveyor belt 1 , baffles 2 are fixedly installed on both sides of the top of the conveyor belt 1 , and a mounting plate 3 is fixedly installed on the top of the baffle 2 , The two baffles 2 form a narrow space above the conveyor belt 1, so that the noodle packaging bag remains in a standing state, while the baffles 2 play a supporting role on both sides, and the tops of the two mounting plates 3 are slidably connected with movable plates 6 , a leveling mechanism 4 is installed below the two movable plates 6, a connecting block 5 is fixedly connected to the middle positions of the two movable plates 6, and a hot pressing block 7 is fixedly installed on the inner side of the two connecting blocks 5. A driving mechanism 8 is installed on the top of each movable plate 6 for controlling the distance between the two movable plates 6 .

Please refer to FIG. 2 , the leveling mechanism 4 includes a "U"-shaped block 401 , the "U"-shaped block 401 is fixedly installed at a position near the bottom of the movable plate 6 , and two sliding bars are slidably connected to the "U"-shaped block 401 402, a fixing block 405 is fixedly installed on one side of the two sliding rods 402, an "L" shaped plate 404 is fixedly installed on the fixing block 405, and the sliding rod 402 is located between the "U" shaped block 401 and the fixing block 405 The spring 403 is sleeved, and the lower part of the movable plate 6 is hollow designed to provide space for the movement of the fixed block 405 .

Please refer to FIG. 3 , a pressing plate 407 is rotatably connected to one side of the “L”-shaped plate 404. When the two pressing plates 407 are in contact, the packaging bag under the welding position can be flattened. The lower end of the pressing plate 407 is rotatably connected to a connecting rod. A 408, a telescopic rod 409 is rotatably connected to the bottom of the "L"-shaped plate 404, and the connecting rod 408 and the telescopic rod 409 are rotatably connected, and a cylinder 406 is installed on the opposite side of the bottom of the "L"-shaped plate 404. The cylinder 406 The piston rod is rotatably connected to the connection between the connecting rod 1 408 and the telescopic rod 409.

The distance between the two pressing plates 407 is smaller than the distance between the two hot pressing blocks 7 to ensure that when the two movable plates 6 approach each other, the two pressing plates 407 first contact the mouth of the packaging bag and flatten it.

Please refer to FIG. 4 , the driving mechanism 8 includes a limit frame 801 , the limit frame 801 is arranged on the top of the two movable plates 6 , and the two movable plates 6 are movably connected with the limit frame 801 , and the limit frame 801 A motor 802 is fixedly installed in the middle of one side of the motor 802, a threaded rod 803 is fixedly installed on the output shaft of the motor 802, a movable block 805 is threadedly connected to both sides of the threaded rod 803, and a connecting rod 804 is rotatably connected to both sides of the movable block 805. The other side of the connecting rod 804 is rotatably connected with one end of the top of the movable plate 6, and the two ends of the threaded rod 803 have opposite screw threads.

The working principle of the present utility model:

The packaging bag is transported to the sealing position through the conveyor belt 1, and is kept vertical on the conveyor belt 1. Then, the motor 802 works to drive the threaded rod 803 to rotate, and the two movable blocks 805 move to the middle point of the threaded rod 803, so that the movement of the two sides The plate 6 moves closer to the position of the threaded rod 803, thereby driving the leveling mechanism 4 to approach each other, and the air cylinder 406 remains in a retracted state at this time;

The two "L"-shaped plates 404 contact first, so that the sliding rod 402 slides along the "U"-shaped block 401, so that the movable plates 6 on both sides continue to move to the middle position. The first connecting rod 408 and the telescopic rod 409 are in a straight line, so that the two pressing plates 407 are kept vertically downward, and the two press the bag mouth flat until the two hot pressing blocks 7 contact and complete the bag mouth sealing. The two movable plates 6 move to both sides, and the "L"-shaped plate 404 returns to the initial position under the action of the spring 403 .

In the description of the present invention, it should be understood that the terms "upper", "lower", "left", "right" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, only for the purpose of For the convenience of describing the present invention and simplifying the description, it is not intended to indicate or imply that the indicated device or element must have a specific orientation, as well as a specific orientation configuration and operation, and therefore should not be construed as a limitation of the present invention. In addition, "first" and "second" are for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implying the number of indicated technical features. Thus, a feature delimited with "first", "second" may expressly or implicitly include one or more of that feature. In the description of the present invention, unless otherwise specified, "plurality" means two or more.

In the description of the present utility model, it should be noted that, unless otherwise expressly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it may be a fixed connection or a detachable connection. Connection, or integral connection; may be mechanical connection or electrical connection; may be direct connection, or indirect connection through an intermediate medium, or internal communication between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood in specific situations.

An embodiment of the present invention has been described in detail above, but the content is only a preferred embodiment of the present invention, and cannot be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made according to the scope of the application of the present utility model should still belong to the scope of the patent of the present utility model.

Claims (5)

1. The utility model provides a mechanism that seals of wrapping bag, includes conveyer belt (1), its characterized in that, the equal fixed mounting in top both sides position of conveyer belt (1) has baffle (2), the top fixed mounting of baffle (2) has mounting panel (3), two the equal sliding connection in top of mounting panel (3) has fly leaf (6), two leveling mechanism (4), two are installed to the below of fly leaf (6) the equal fixedly connected with connecting block (5) of intermediate position of fly leaf (6), two fixed mounting has hot briquetting (7), two on the opposite face of connecting block (5) actuating mechanism (8) are installed at the top of fly leaf (6).

2. The sealing mechanism of the packaging bag according to claim 1, wherein the leveling mechanism (4) comprises a U-shaped block (401), the U-shaped block (401) is fixedly installed at a position, close to the bottom, of the movable plate (6), two sliding rods (402) are connected onto the U-shaped block (401) in a sliding mode, a fixed block (405) is fixedly installed on one side of each of the two sliding rods (402), an L-shaped block (404) is fixedly installed on each fixed block (405), and a spring (403) is sleeved at a position, located between the U-shaped block (401) and the fixed block (405), on each sliding rod (402).

3. The sealing mechanism of the packaging bag as claimed in claim 2, wherein one side of the L-shaped plate (404) is rotatably connected with a pressing plate (407), the lower end of the pressing plate (407) is rotatably connected with a first connecting rod (408), the lower part of the L-shaped plate (404) is rotatably connected with an expansion link (409), the first connecting rod (408) and the expansion link (409) are rotatably connected, a cylinder (406) is fixedly mounted at the bottom of one side of the L-shaped plate (404), and a piston rod of the cylinder (406) is rotatably connected with the connecting part of the first connecting rod (408) and the expansion link (409).

4. A closure mechanism for a package according to claim 3, wherein the distance between the two press plates (407) is less than the distance between the two heat press blocks (7).

5. The sealing mechanism of the packaging bag according to claim 1, wherein the driving mechanism (8) comprises a limiting frame (801), a motor (802) is fixedly mounted at the middle position of one side of the limiting frame (801), a threaded rod (803) is fixedly mounted on an output shaft of the motor (802), movable blocks (805) are in threaded connection with two sides of the threaded rod (803), connecting rods (804) are rotatably connected with two sides of each movable block (805), the other side of each connecting rod (804) is rotatably connected with one end of the top of the corresponding movable plate (6), and threads at two ends of each threaded rod (803) are opposite in rotating direction.

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