A sealing mechanism for a facial mask packaging bag

Abstract

The invention provides an edge sealing mechanism for a facial mask packaging bag. The edge sealing mechanism for the facial mask packaging bag comprises a movable frame, which has the function of horizontally moving back and forth, the power for the movement of the movable frame adopts an electric rocker arm, and the movable frame is a frame; a pushing mechanism, which is located in the movable frame, and the pushing block of the pushing mechanism is an eccentric block, and the pushing block rotates at a uniform speed; a heat sealing pressing device, which is located in the movable frame at the bottom of the pushing mechanism, and is composed of a heat sealing device and a pressing device, and at the same time, the heat sealing port of the heat sealing device is horizontal with the pressing port of the pressing device, and the opening and closing of the heat sealing port and the pressing port are completed by the pushing mechanism; an elastic lifting device, which connects the pushing mechanism and the heat sealing pressing device; a conveying platform, which horizontally conveys the facial mask packaging substrate; because the electric rocker arm drives the movable frame to move back and forth, the movable frame moves with the facial mask packaging substrate, so that the facial mask packaging substrate can be continuously heat-sealed through the movement of the movable frame and the cooperation of the pushing mechanism, which greatly improves the production efficiency.

Description

Technical Field

[0001] The invention discloses an edge sealing device, in particular an edge sealing mechanism for a facial mask packaging bag. Background Art

[0002] The motor used by the existing mask packaging bag edge sealing mechanism to convey the mask packaging substrate generally adopts a stepper motor or a servo motor. Because it takes a while for the heat-sealing block of the edge sealing mechanism to press and heat-seal the two pieces of packaging substrate together, the motor that conveys the mask packaging substrate needs to stop and start to complete the edge sealing. The stopping and starting of conveying the mask packaging substrate directly reduces the production efficiency. Summary of the invention

[0003] In view of the defects of the existing edge sealing mechanism of the mask packaging bag, the technical problem to be solved by the present invention is to provide an edge sealing mechanism that can continuously seal the edges of the mask packaging bag to improve the edge sealing efficiency.

[0004] In order to achieve the above object, according to one aspect of the present invention, the present invention is implemented by the following technical measures: an edge sealing mechanism for a facial mask packaging bag, comprising:

[0005] The mobile frame has the function of horizontally moving back and forth. The power of the mobile frame is an electric rocker arm. The mobile frame is a frame body.

[0006] The pushing mechanism is located in the moving frame, and the pushing block of the pushing mechanism is an eccentric block, and the pushing block rotates at a constant speed;

[0007] The heat sealing and pressing device is located in the mobile frame at the bottom of the pushing mechanism, and is composed of a heat sealing device and a pressing device. At the same time, the heat sealing port of the heat sealing device is level with the pressing port of the pressing device, so that the heat sealing port and the pressing port can simultaneously press or loosen the packaging substrate.

[0008] The top of the heat-sealing pressing device is fixed to the elastic lifting device, and the lifting power of the elastic lifting device is composed of a push block and a buffer spring on the elastic lifting device;

[0009] The conveying platform is located on one side of the clamping device and is composed of a fixed platform and a movable platform, wherein one side of the movable platform is directly fixed to the clamping device, and the movable platform is level with the lower clamping block constituting the clamping port.

[0010] The other side of the movable platform is connected to the fixed platform, and a row of staggered bar teeth are provided on the opposite docking sides of the movable platform and the fixed platform. The bar teeth of the movable platform are meshed with the bar teeth of the fixed platform to form a complete conveying platform. At the same time, the horizontal back and forth movement of the movable frame cannot completely separate the bar teeth of the movable platform from the bar teeth of the fixed platform.

[0011] The edge sealing mechanism of the mask packaging bag increases the heat sealing time of the heat sealing pressing device by moving the frame, and at the same time, the driving block can control the heat sealing pressing device to continuously and uninterruptedly seal the edge of the mask packaging substrate after rotating at a uniform speed, thereby greatly improving the production efficiency.

[0012] Furthermore, the electric rocker arm includes a pull rod, a rotating arm and a motor, a through slot is formed on the rotating arm, one side of the pull rod is fixed to the moving frame, the other side of the pull rod is fixed in the through slot, and the main shaft of the motor is fixed to one side of the rotating arm, so that the motor drives the rotating arm to rotate eccentrically. The above design structure is simple and reasonable.

[0013] Furthermore, the pushing mechanism includes a pushing block, a rotating shaft, a rotating shaft seat and a motor. There are two rotating shaft seats, which are arranged on opposite sides of the mobile frame. The rotating shaft connects the two rotating shaft seats and is driven to rotate by the motor. There are two pushing blocks, which are square or equilateral triangle, and the edges of the pushing blocks are rounded. The above design structure is simple, but the heat sealing effect will be poor.

[0014] Furthermore, the pushing mechanism also includes a bearing, a bearing rod and a push-pull shaft, and opposite circular grooves are opened on opposite sides of the two pushing blocks, with the eccentric point of the pushing block as the center of the circular groove, two bearings are arranged in the circular grooves of the two pushing blocks, the bearing rod connects the two bearings, one side of the push-pull shaft is fixed to the bearing rod, and the other side is fixed to the top of the elastic lifting device, and the two pushing blocks do not contact the top of the elastic lifting device. The above design makes the heat sealing effect reach the most ideal.

[0015] Furthermore, the elastic lifting device includes a fixed plate on the cylinder, a slide bar, a slide bar seat and a buffer spring, the slide bars are at least two and are arranged opposite to each other, the slide bar seat is used to fix the slide bar and is fixed to the moving frame, the buffer spring is sleeved on the slide bar at the top of the slide bar seat, and the fixed plate is plugged with the slide bar and is located at the top of the buffer spring. The above design can form a buffer when the pushing mechanism is working, and will not make a sound when the heat sealing port and the pressing port are closed, thereby improving the service life.

[0016] Furthermore, the heat sealing device is composed of a heat sealing block, a fixed block and a heat insulation sheet, the heat insulation sheet is located at the top of the heat sealing block and is driven to rise and fall vertically by an elastic lifting device, the heat sealing block can generate heat, and the fixed block is fixed to the inner bottom surface of the mobile frame and is located at the bottom of the heat sealing block. The above design is to prevent heat from being transferred upward.

[0017] Furthermore, the clamping device is composed of a clamp block fixing seat, a lower clamp block and an upper clamp block. The clamp block fixing seat is fixed to the movable frame, the lower clamp block is fixed to the top of the clamp block fixing seat, and the upper clamp block is at the top of the lower clamp block and is driven to rise and fall vertically by an elastic lifting device.

[0018] Furthermore, the edge sealing mechanism also includes a cylinder, which is located between the heat sealing pressing device and the elastic lifting device, and is connected to a cylinder switch, which controls the cylinder to drive the heat sealing pressing device to rise and fall vertically. In the above design, when defective products or breaks occur during edge sealing of the facial mask packaging substrate, the heat sealing block can be lifted by the cylinder, thereby increasing the distance between the heat sealing block and the fixed block, which is convenient for material connection and processing.

[0019] Compared with the prior art, the advantages of the present invention are: through the reciprocating operation of the pushing mechanism, the heat sealing pressing device and the moving frame, the edge sealing of the mask packaging substrate can be continuously and uninterruptedly performed, which greatly improves the production efficiency. At the same time, during the back and forth movement of the moving frame, the movable platform and the fixed platform of the conveying platform are combined and separated, but are never completely separated, thereby ensuring the flatness of the mask packaging substrate and the mask, and preventing the mask from moving and being heat-sealed due to partial falling of the mask packaging substrate. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the accompanying drawings:

[0021] Figure 1 It is a schematic structural diagram of the edge sealing mechanism of the facial mask packaging bag described in the present invention.

[0022] Figure 2 This is a schematic diagram of the push block structure of the present invention.

[0023] Description of reference numerals: 101, moving frame; 102, fixed platform; 103, movable platform; 104, bar-shaped teeth; 105, pull rod; 106, rotating arm; 107, main shaft; 108, through groove; 109, fixed plate; 201, rotating shaft; 202, rotating shaft seat; 203, bearing; 204, bearing rod; 205, push-pull shaft; 206, circular groove; 207, pushing block; 301, Cylinder upper fixing plate; 302, slide bar; 303, slide bar seat; 304, buffer spring; 305, cylinder lower fixing plate; 401, heat sealing block; 402, fixed block; 403, heat insulation sheet; 404, clamp block fixing seat; 405, lower clamp block; 406, upper clamp block; 407, L-shaped iron block; 408, cylinder; 409, cylinder switch; 501, slide rail fixing plate; 502, slide rail. DETAILED DESCRIPTION

[0024] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments. It should be noted that the embodiments and features in the embodiments of the present application can be combined with each other without conflict.

[0025] In the description of the present invention, it is necessary to understand that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0026] Reference Figure 1 The edge sealing mechanism of a facial mask packaging bag provided in this embodiment includes a moving frame 101, a pushing mechanism, a heat sealing pressing device, an elastic lifting device and a conveying platform, wherein the moving frame 101 is a hollow rectangular parallelepiped frame, and the top and bottom of the frame are respectively fixed with slide rail sleeves, and the bottom of the moving frame 101 is fixed with a slide rail fixing plate 501, and the top of the slide rail fixing plate 501 is fixed with a slide rail 502 used in conjunction with the slide rail sleeve. Of course, the edge sealing mechanism also requires a vertical fixed baffle, and the function of the fixed baffle is to fix other components, such as the slide rail fixing plate 501 can be fixed The movable frame 101 is fixed on the fixed baffle plate. Continuing to explain, the movable frame 101 can move back and forth along the slide rail 502. The power of its movement is completed by the electric rocker arm. As a preferred structure, the electric rocker arm is composed of a pull rod 105, a rotating arm 106 and a motor. In order to facilitate the use of the rotating arm 106, the electric rocker arm can also include a fixed plate 109. The fixed plate 109 is fixed on the fixed baffle plate on the right side of the movable frame 101. The main shaft 107 of the motor passes through the fixed baffle plate and the fixed plate 109 and is fixed to the rotating arm 106. Of course, the main shaft 107 and the rotating arm 106 are fixed here. The timing is preferably at a position close to the end surface on the left side of the rotating arm 106, so that the rotating arm 106 is eccentrically fixed. At the same time, a through groove 108 is opened on the above-mentioned rotating arm 106, and one side of the above-mentioned pull rod 105 is stuck in the through groove 108. The side pull rod 105 is fixed at different positions of the through groove 108 to adjust the stroke of the other side of the pull rod 105 moving forward and backward, so as to be suitable for the edge sealing of different types of facial mask packaging bags, and the other side of the pull rod 105 is connected to the mobile frame 101. In this way, when the motor drives the rotating arm 106 to rotate, due to the eccentric fixation of the rotating arm 106, the pull rod 105 passes through the rotating arm 106 Drives the moving frame 101 to move back and forth horizontally. Continuing to explain, the pushing mechanism includes a pushing block 207, a rotating shaft 201, a rotating shaft seat 202 and a motor. As a preferred structure, the pushing block 207 is eccentric and consists of two pieces. The two pushing blocks 207 are preferably cubes, and the edges of the pushing blocks 207 are preferably rounded. At the same time, the rotating shaft seat 202 is also two. The two rotating shaft seats 202 are respectively arranged at positions near the inner top of the moving frame 101. A rotating shaft 201 passing through the two pushing blocks 207 is fixed between the two rotating shaft seats 202, and the motor drives the rotating shaft 201 to rotate;

[0027] Combination Figure 2Further description, the two push blocks 207 are each provided with a circular groove 206 on the opposite side, and the circular groove 206 includes an elliptical groove, and the two circular grooves 206 are centered at the eccentric point of the push block 207, so that the two circular grooves 206 are also eccentric, and a bearing 203 is placed in each of the two circular grooves 206, and a bearing rod 204 is connected between the two bearings 203, and a push-pull shaft 205 is fixed thereto, and the push-pull shaft 205 extends to the bottom of the bearing rod 204;

[0028] Continuing to explain, the elastic lifting device includes a fixed plate 301 on the cylinder, a slide bar 302, a buffer spring 304, and a slide bar seat 303. As a preferred structure, the slide bars 302 are preferably four, and the array is arranged in the mobile frame 101. Each slide bar 302 is fixed to the inside of the mobile frame 101 through two slide bar seats 303, and the buffer spring 304 is sleeved on the slide bar 302. At the same time, the buffer spring 304 is at the top of the top slide bar seat 303. The fixed plate 301 on the cylinder is plugged into the slide bar 302, and the fixed plate 301 on the cylinder is fixed to the push-pull shaft 205. The push-pull shaft 205 drives the fixed plate 301 on the cylinder to move along the slide bar 302 moves vertically, further illustrating that a cylinder 408 is also fixed at the bottom of the cylinder upper fixed plate 301, and there are two cylinders 408 and they are controlled by a cylinder switch 409 fixed on the fixed baffle. A cylinder lower fixed plate 305 is also fixed at the bottom of the main shaft of the cylinder 408. The heat sealing clamping device is fixed at the bottom of the cylinder lower fixed plate 305. The heat sealing clamping device is located in the mobile frame 101 at the bottom of the pushing mechanism, and is composed of a heat sealing device and a clamping device. The heat sealing device is composed of a heat sealing block 401, a fixed block 402 and a heat insulating sheet 403. The heat insulating sheet 403 is located between the top of the heat sealing block 401 and the cylinder lower fixed plate 305. The bottom is fixed, and the fixed pressure block 402 is fixed on the inner bottom surface of the mobile frame 101, and the above-mentioned clamping device is composed of a clamping block fixing seat 404, a lower clamping block 405 and an upper clamping block 406. The clamping block fixing seat 404 is fixed to the mobile frame 101, and the lower clamping block 405 is fixed to the top of the clamping block fixing seat 404. The upper clamping block 406 is fixed to the lower fixed plate 305 of the cylinder through an L-shaped iron block 407. At the same time, the heat-sealed opening formed between the heat-sealed pressure block 401 and the fixed pressure block 402 and the clamping opening formed by the lower clamping block 405 and the upper clamping block 406 are horizontal. The above-mentioned conveying platform is located on the right side of the clamping device, and is composed of a fixed platform 102 and a movable platform 103, wherein the movable platform 1 The left side of 03 is directly fixed to the lower clamping block 405, and the top surface of the movable platform 103 is level with the top surface of the lower clamping block 405, and the other right side of the movable platform 103 is connected to the fixed platform 102, and the right side of the movable platform 103 and the left side of the fixed platform 102 are provided with a row of staggered bar teeth 104, and the bar teeth 104 of the movable platform 103 are meshed with the bar teeth 104 of the fixed platform 102 to form a complete conveying platform, and at the same time, the horizontal back and forth movement of the movable frame 101 cannot completely separate the two rows of bar teeth 104. Of course, a pulling device needs to be added to the left side of the edge sealing mechanism of the facial mask packaging bag when in use. The pulling device is used to pull the facial mask packaging substrate on the conveying platform.

[0029] The edge sealing mechanism of a facial mask packaging bag described in this embodiment continuously pulls the packaging substrate (the packaging substrate is composed of two layers, upper and lower, with a facial mask sandwiched in the middle) through a uniformly rotating motor, along the fixed platform 102 moving along the conveying platform to the movable platform 103, passes through the upper and lower clamping blocks of the clamping device, and then passes through the heat sealing block 401 and the fixed block 402 of the heat sealing device. During the uniform speed pulling process of the facial mask packaging substrate, the rotating shaft 201 of the pushing mechanism drives the two pushing blocks 207 to rotate, so that the two bearings 203 in the circular groove 206 of the pushing block 207 rotate along the circular groove 206, and at the same time, the bearing rod 204 connecting the two bearings 203 drives the push-pull shaft 205 to move up and down, and the push-pull shaft 205 drives the upper fixed plate 301 of the cylinder, the cylinder 408 and the lower fixed plate 305 of the cylinder to move up and down. Since the heat sealing block 401 is fixed on the lower fixed plate 305 of the cylinder, the heat sealing block 401 presses down The upper and lower packaging substrates are pressed against the fixed pressure block 402 to start hot-melt edge sealing. In the process of the heat sealing device clamping the packaging substrate for edge sealing, due to the uniform movement of the packaging substrate, in order to prevent the facial mask packaging substrate from stopping, the motor main shaft 107 drives the rotating arm 106 to rotate, and the rotating arm 106 pushes the pull rod 105, and the pull rod 105 pushes the movable frame 101 to slide forward along the slide rail 502, that is, it will not affect the uniform movement of the facial mask packaging substrate. When the heat sealing device completes the hot-melt edge sealing, the pushing block 207 drives the push-pull shaft 205 to move upward, so that the heat sealing pressure block 401 is separated from the fixed pressure block 402, and the movable frame 101 moves back under the pull of the pull rod 105 and the rotating arm 106, and then the heat sealing pressure block 401 of the heat sealing device is pressed down again, and the pushing mechanism and the electric rocker arm cooperate with the reciprocating cycle operation, so that the facial mask packaging substrate can be continuously and uninterruptedly sealed, which greatly improves the production efficiency.

[0030] During the back and forth movement of the mobile frame 101, the movable platform 103 and the fixed platform 102 of the conveying platform are joined and separated, but never completely separated, so as to ensure the flatness of the mask packaging substrate and the mask;

[0031] A cylinder 408 is arranged between the cylinder upper fixing plate 301 and the cylinder lower fixing plate 305 of the heat sealing pressing device and is controlled by a cylinder switch 409. When defective products or breakage occur during edge sealing of the facial mask packaging substrate, the heat sealing pressing block 401 and the upper clamping block 406 can be lifted by the cylinder 408 to facilitate material connection and processing;

[0032] A buffer spring 304 is provided between the fixed plate 301 on the cylinder and the slide rod seat 303, which can provide a buffer for the back and forth pushing process of the pushing device, so that the heat sealing block 401 will not hit the fixed block 402 and the upper clamping block 406 will not hit the lower clamping block 405 to produce sound;

[0033] A heat insulating sheet 403 is provided between the heat sealing block 401 and the lower fixing plate 305 of the cylinder to prevent the high temperature of the heat sealing block 401 from being transferred to the cylinder 408 and causing the cylinder 408 to fail.

[0034] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An edge sealing mechanism for a facial mask packaging bag, characterized in that: include: The mobile frame has the function of horizontally moving back and forth. The power of the mobile frame is an electric rocker arm. The mobile frame is a frame body. The pushing mechanism is located in the moving frame, and the pushing block of the pushing mechanism is an eccentric block, and the pushing block rotates at a constant speed; The heat sealing and pressing device is located in the mobile frame at the bottom of the pushing mechanism, and is composed of a heat sealing device and a pressing device. At the same time, the heat sealing port of the heat sealing device is level with the pressing port of the pressing device, so that the heat sealing port and the pressing port can simultaneously press or loosen the packaging substrate. The top of the heat-sealing pressing device is fixed to the elastic lifting device, and the lifting power of the elastic lifting device is composed of a push block and a buffer spring on the elastic lifting device; The conveying platform is located on one side of the clamping device and is composed of a fixed platform and a movable platform, wherein one side of the movable platform is directly fixed to the clamping device, and the movable platform is level with the lower clamping block constituting the clamping port. The other side of the movable platform is connected to the fixed platform, and a row of staggered bar teeth are provided on the opposite docking sides of the movable platform and the fixed platform. The bar teeth of the movable platform are meshed with the bar teeth of the fixed platform to form a complete conveying platform. At the same time, the horizontal back and forth movement of the movable frame cannot completely separate the bar teeth of the movable platform from the bar teeth of the fixed platform.

2. The edge sealing mechanism of a facial mask packaging bag according to claim 1, characterized in that: The electric rocker arm includes a pull rod, a rotating arm and a motor. A through slot is opened on the rotating arm. One side of the pull rod is fixed to the moving frame, and the other side of the pull rod is fixed in the through slot. The main shaft of the motor is fixed to one side of the rotating arm, so that the motor drives the rotating arm to rotate eccentrically.

3. The edge sealing mechanism of a facial mask packaging bag according to claim 1, characterized in that: The pushing mechanism includes a pushing block, a rotating shaft, a rotating shaft seat and a motor. There are two rotating shaft seats, which are arranged on opposite sides of the mobile frame. The rotating shaft connects the two rotating shaft seats and is driven to rotate by the motor. There are two pushing blocks, which are square or equilateral triangle, and the edges of the pushing blocks are rounded.

4. The edge sealing mechanism of a facial mask packaging bag according to claim 3, characterized in that: The pushing mechanism also includes a bearing, a bearing rod and a push-pull shaft. At the same time, relative circular grooves are opened on the opposite sides of the two pushing blocks. The circular groove takes the eccentric point of the pushing block as the center. There are two bearings, which are arranged in the circular grooves of the two pushing blocks. The bearing rod connects the two bearings. One side of the push-pull shaft is fixed to the bearing rod, and the other side is fixed to the top of the elastic lifting device. At the same time, the two pushing blocks do not contact the top of the elastic lifting device.

5. The edge sealing mechanism of a facial mask packaging bag according to claim 1 or 4, characterized in that: The elastic lifting device includes a fixed plate on the cylinder, a sliding rod, a sliding rod seat and a buffer spring. There are at least two sliding rods that are arranged opposite to each other. The sliding rod seat is used to fix the sliding rod and is fixed to the movable frame. The buffer spring is sleeved on the sliding rod at the top of the sliding rod seat. The fixed plate is plugged into the sliding rod and is located on the top of the buffer spring.

6. The edge sealing mechanism of a facial mask packaging bag according to claim 1, characterized in that: The heat sealing device consists of a heat sealing block, a fixed block and a heat insulation sheet. The heat insulation sheet is located at the top of the heat sealing block and is driven to rise and fall vertically by an elastic lifting device. The heat sealing block can generate heat. The fixed block is fixed to the inner bottom surface of the movable frame and is located at the bottom of the heat sealing block.

7. The edge sealing mechanism of a facial mask packaging bag according to claim 1, characterized in that: The clamping device is composed of a clamp block fixing seat, a lower clamp block and an upper clamp block. The clamp block fixing seat is fixed to the moving frame, the lower clamp block is fixed on the top of the clamp block fixing seat, and the upper clamp block is on the top of the lower clamp block and is driven to rise and fall vertically by an elastic lifting device.

8. An edge sealing mechanism for a facial mask packaging bag according to any one of claims 1 to 4, 6 and 7, characterized in that: The edge sealing mechanism also includes a cylinder, which is located between the heat sealing and pressing device and the elastic lifting device. The cylinder is connected to a cylinder switch, and the cylinder switch controls the cylinder to drive the heat sealing and pressing device to vertically lift and lower.

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