A positioning mechanism for a heat sealing equipment for packaging bags

Abstract

This utility model relates to the field of heat sealing technology for packaging bags, and provides a positioning mechanism for a heat sealing equipment for packaging bags, including: a moving track, a support plate fixedly installed on one side of the moving track, two electric push rods fixedly installed at the bottom of the support plate, a disc fixedly installed at the bottom of the two electric push rods, a hot air blower fixedly installed at the bottom of the disc, a connecting strip fixedly installed on one side of the disc, a limit post fixedly installed at the bottom of the connecting strip, and a spring sleeved on the outer surface of the limit post. In use, this utility model allows the hot air blower to move closer to the disc downwards during movement, thereby improving the heat sealing effect on the packaging bags. Multiple conveyor plates are arranged above the moving track to continuously heat seal multiple packaging bags, increasing efficiency. Multiple conveyor plates can continuously move above the moving track.

Description

Technical Field

[0001] This utility model relates to the field of heat sealing technology for packaging bags, and in particular to a positioning mechanism for a heat sealing device for packaging bags. Background Technology

[0002] In the production and processing of packaging bags, heat sealing is one of the key processes to ensure product airtightness and extend shelf life. Traditional heat sealing equipment typically uses a fixed station where operators or robots place the packaging bags under the heat sealing mold for pressing and sealing. This method suffers from low production efficiency, high labor costs, and positioning accuracy that depends on the operator's experience. It is also prone to problems such as inadequate heat sealing or poor seal appearance due to misplacement of the packaging bags, resulting in product scrap.

[0003] To improve automation, some heat-sealing equipment using conveyor belts for continuous transport of packaging bags has emerged in existing technologies. These devices use clamping or adsorption mechanisms on the conveyor line to secure the bags and prevent displacement during transport and heat sealing. However, these mechanisms often face the following technical bottlenecks: First, common negative pressure adsorption fixing devices typically have fixed vacuum pipelines, making them difficult to adapt to long-distance movement of the conveyor plate. This poses risks of pipeline entanglement, wear, or vacuum leakage, leading to unstable adsorption force and positioning failure. Second, at the heat sealing station, relying solely on adsorption fixation may be insufficient to resist the lateral stress generated when the heat sealing head presses down, allowing the packaging bag to still experience slight slippage, affecting the sealing quality. Finally, most of these devices cannot achieve continuous operation; the entire conveyor line must be stopped during heat sealing, limiting further improvements in overall production efficiency.

[0004] Utility model content.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a positioning mechanism for a heat-sealing equipment for packaging bags, comprising: a moving track, a support plate fixedly installed on one side of the moving track, two electric push rods fixedly installed at the bottom of the support plate, a disc fixedly installed at the bottom of the two electric push rods, a hot air blower fixedly installed at the bottom of the disc, a connecting strip fixedly installed on one side of the disc, a limit post fixedly installed at the bottom of the connecting strip, and a spring sleeved on the outer surface of the limit post.

[0006] The technical effect of adopting the above-mentioned further solution is as follows: the electric push rod is started by an external power source, and the electric push rod pushes the disc to move downward. At this time, it comes into contact with the packaging bag on the conveyor plate. After contact, it is limited and fixed. Under the limit of the spring, the disc continues to move downward. During the movement, the hot air blower can be brought closer to the disc as it moves downward, thereby improving the heat sealing effect of the packaging bag. Multiple conveyor plates are set above the moving track, which can continuously heat seal multiple packaging bags, increasing efficiency. Multiple conveyor plates can continuously move above the moving track.

[0007] In a preferred embodiment, the top end of the spring is fixedly connected to the bottom of the connecting strip, a sliding ring is fixedly installed at the bottom of the spring, a flat strip is fixedly installed on one side of the sliding ring, a pressure ring is fixedly connected to one side of the flat strip, the pressure ring is located directly below the hot air blower, and a cylinder is fixedly installed at the top of the moving track.

[0008] The technical effect of adopting the above-mentioned further solution is that the packaging bag is located above the conveyor plate, and the cylinder is started by an external power source. The cylinder pushes the packaging bag on the conveyor plate to move above the moving track.

[0009] In a preferred embodiment, a plurality of conveying plates are fixedly installed at one end of the cylinder, and a connecting plate is fixedly installed on the opposite side of each of the plurality of conveying plates. The plurality of conveying plates are slidably connected to the top of the moving track, and a vent hole is opened on the top of each of the plurality of conveying plates. A sealing cover is fixedly installed at the bottom of the moving track, and a motor is fixedly installed at the bottom of the sealing cover.

[0010] The technical effect of adopting the above-mentioned further solution is that: the sealing cover is started by an external power source to drive the fan to rotate, and the conveyor plate blows air downwards and sucks air through the vents via a telescopic hose, thereby sucking the packaging bag in place and fixing the packaging bag above the conveyor plate. When the conveyor plate moves, there will be no movement or deviation.

[0011] In a preferred embodiment, a fan is fixedly installed at the output end of the motor. The fan rotates inside the sealed cover. Multiple telescopic hoses are fixedly installed on the top of the sealed cover, and the multiple telescopic hoses are respectively fixedly installed on the bottom of multiple conveyor plates.

[0012] The technical effect of adopting the above-mentioned further solution is that the packaging bag will not move during transportation and will always remain above the conveyor plate.

[0013] In a preferred embodiment, an air outlet pipe is fixedly installed at the bottom of the sealing cover.

[0014] The technical effect of adopting the above-mentioned further solution is that the air outlet pipe is used to exhaust air after the telescopic hose is sucked in.

[0015] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0016] In use, this invention utilizes an electric push rod activated by an external power source. The electric push rod pushes a disc downwards, bringing it into contact with the packaging bags on the conveyor plate. After contact, the disc is positioned and fixed. Under the constraint of a spring, the disc continues to move downwards. This movement brings the hot air blower closer to the disc, resulting in better heat sealing of the packaging bags. Multiple conveyor plates are positioned above the moving track, allowing for continuous heat sealing of multiple packaging bags, increasing efficiency. These multiple conveyor plates can continuously move above the moving track.

[0017] In this invention, the packaging bag is positioned above the conveyor plate. An external power source activates the cylinder, which pushes the packaging bag on the conveyor plate to move above the moving track. An external power source also activates the sealing cover, which drives the fan to rotate. The conveyor plate blows air downwards and draws air through the vents via a telescopic hose, thereby holding the packaging bag in place and fixing it above the conveyor plate. This prevents the packaging bag from shifting or deviating when the conveyor plate moves. Attached Figure Description

[0018] Figure 1 This utility model provides a three-dimensional structural diagram of a positioning mechanism for a packaging bag heat-sealing device;

[0019] Figure 2 This utility model provides an enlarged structural diagram of the positioning mechanism at point A of a packaging bag heat sealing device;

[0020] Figure 3 This utility model provides a schematic diagram of the fan structure of the positioning mechanism of a packaging bag heat sealing device;

[0021] Figure 4 This utility model presents a side view of the positioning mechanism of a heat-sealing device for packaging bags.

[0022] Legend: 101. Moving track; 102. Cylinder; 103. Conveyor plate; 104. Connecting plate; 105. Vent hole; 106. Sealing cover; 107. Telescopic hose; 108. Motor; 109. Fan; 110. Air outlet pipe; 111. Support plate; 112. Electric push rod; 113. Disc; 114. Hot air blower; 115. Connecting strip; 116. Spring; 117. Sliding ring; 118. Limiting post; 119. Flat strip; 120. Pressure ring. Detailed Implementation

[0023] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0024] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0025] Please see Figures 1 to 4 This utility model provides a positioning mechanism for a heat-sealing equipment for packaging bags, comprising: a moving track 101, a support plate 111 fixedly installed on one side of the moving track 101, two electric push rods 112 fixedly installed on the bottom of the support plate 111, a disc 113 fixedly installed on the bottom of the two electric push rods 112, a hot air blower 114 fixedly installed on the bottom of the disc 113, a connecting strip 115 fixedly installed on one side of the disc 113, a limit post 118 fixedly installed on the bottom of the connecting strip 115, and a spring 116 sleeved on the outer surface of the limit post 118. The electric push rods 112 are activated by an external power source. The electric push rod 112 pushes the disc 113 downward. At this time, 120 comes into contact with the packaging bag on the conveyor plate 103 and limits and fixes it after contact. At this time, under the limit of the spring 116, the disc 113 continues to move downward. When moving, the hot air blower 114 can move closer to the disc 113, thereby making the heat sealing effect of the packaging bag better. Multiple conveyor plates 103 are set above the moving track 101, which can continuously heat seal multiple packaging bags, increasing efficiency. Multiple conveyor plates 103 can continuously move above the moving track 101.

[0026] like Figures 1 to 4 As shown, the top end of the spring 116 is fixedly connected to the bottom of the connecting bar 115. A sliding ring 117 is fixedly installed at the bottom of the spring 116. A flat bar 119 is fixedly installed on one side of the sliding ring 117. A pressure ring 120 is fixedly connected to one side of the flat bar 119. The pressure ring 120 is located directly below the hot air blower 114. A cylinder 102 is fixedly installed on the top of the moving track 101. The packaging bag is located above the conveyor plate 103. The cylinder 102 is started by an external power source. The cylinder 102 pushes the packaging bag on the conveyor plate 103 to move above the moving track 101.

[0027] like Figures 1 to 4As shown, a plurality of conveyor plates 103 are fixedly installed at one end of the cylinder 102. A connecting plate 104 is fixedly installed on the opposite side of each of the conveyor plates 103. The conveyor plates 103 are slidably connected to the top of the moving track 101. Vent holes 105 are opened on the top of each of the conveyor plates 103. A sealing cover 106 is fixedly installed at the bottom of the moving track 101. A motor 108 is fixedly installed at the bottom of the sealing cover 106. The sealing cover 106 is started by an external power source to drive the fan 109 to rotate. The conveyor plates 103 blow air downwards and suck air through the vent holes 105 via the telescopic hose 107, thereby sucking up the packaging bag and fixing the packaging bag above the conveyor plates 103. When the conveyor plates 103 move, there will be no movement or deviation.

[0028] like Figures 1 to 4 As shown, a fan 109 is fixedly installed at the output end of the motor 108. The fan 109 rotates inside the sealing cover 106. Multiple telescopic hoses 107 are fixedly installed on the top of the sealing cover 106. The multiple telescopic hoses 107 are respectively fixedly installed at the bottom of multiple conveyor plates 103. The packaging bag will not move during the conveying process and will always be located above the conveyor plate 103.

[0029] like Figures 1 to 4 As shown, an air outlet pipe 110 is fixedly installed at the bottom of the sealing cover 106. The air outlet pipe 110 is used to release air after the telescopic hose 107 has been sucked in.

[0030] Working principle: During use, the packaging bag is positioned above the conveyor plate 103. An external power source activates cylinder 102, which pushes the packaging bag on the conveyor plate 103 to move above the moving track 101. An external power source also activates the sealing cover 106, which drives the fan 109 to rotate. The conveyor plate 103 blows air downwards through the telescopic hose 107 to draw air into the vent 105, thus holding the packaging bag in place and fixing it above the conveyor plate 103. The conveyor plate 103 will not deviate during movement. The length of the telescopic hose 107 is greater than the distance the conveyor plate 103 moves above the moving track 101. When the packaging bag moves to… When the disc 113 is directly below the disk 113, the electric push rod 112 is activated by an external power source. The electric push rod 112 pushes the disc 113 downward. At this time, 120 contacts the packaging bag on the conveyor plate 103 and limits and fixes it after contact. At this time, under the limit of the spring 116, the disc 113 continues to move downward. When moving, the hot air blower 114 can move closer to the disc 113, thereby making the heat sealing effect of the packaging bag better. Multiple conveyor plates 103 are set above the moving track 101, which can continuously heat seal multiple packaging bags, increasing efficiency. Multiple conveyor plates 103 can continuously move above the moving track 101.

[0031] The above are merely preferred embodiments of this utility model and are not intended to limit the utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model without departing from the technical solution of this utility model shall still fall within the protection scope of this utility model.

Claims

1. A positioning mechanism for a bag heat sealing apparatus, comprising: The movable track (101) is characterized in that a support plate (111) is fixedly installed on one side of the movable track (101), two electric push rods (112) are fixedly installed at the bottom of the support plate (111), a disc (113) is fixedly installed at the bottom of the two electric push rods (112), a hot air blower (114) is fixedly installed at the bottom of the disc (113), a connecting strip (115) is fixedly installed on one side of the disc (113), a limit post (118) is fixedly installed at the bottom of the connecting strip (115), and a spring (116) is sleeved on the outer surface of the limit post (118).

2. A positioning mechanism for a bag heat sealing apparatus according to claim 1, wherein: The top end of the spring (116) is fixedly connected to the bottom of the connecting bar (115), and a sliding ring (117) is fixedly installed at the bottom of the spring (116).

3. A positioning mechanism for a bag heat sealing apparatus as defined in claim 2, wherein: A flat strip (119) is fixedly installed on one side of the sliding ring (117), and a pressure ring (120) is fixedly connected to one side of the flat strip (119). The pressure ring (120) is located directly below the hot air blower (114), and a cylinder (102) is fixedly installed on the top of the moving track (101).

4. A positioning mechanism for a bag heat sealing apparatus as defined in claim 3, wherein: A plurality of conveying plates (103) are fixedly installed at one end of the cylinder (102), and a connecting plate (104) is fixedly installed on the opposite side of each of the plurality of conveying plates (103). The plurality of conveying plates (103) are slidably connected to the top of the moving track (101).

5. A positioning mechanism for a bag heat sealing apparatus as defined in claim 4, wherein: Each of the multiple conveyor plates (103) has a ventilation hole (105) on its top, and a sealing cover (106) is fixedly installed on the bottom of the moving track (101). A motor (108) is fixedly installed on the bottom of the sealing cover (106).

6. The positioning mechanism of a heat-sealing equipment for packaging bags according to claim 5, characterized in that: A fan (109) is fixedly installed at the output end of the motor (108). The fan (109) rotates inside the sealing cover (106). Multiple telescopic hoses (107) are fixedly installed on the top of the sealing cover (106).

7. A positioning mechanism for a bag heat sealing apparatus as defined in claim 6, wherein: Multiple telescopic hoses (107) are respectively fixedly installed on the bottom of multiple conveyor plates (103).

8. A positioning mechanism for a bag heat sealing apparatus according to claim 7, wherein: An air outlet pipe (110) is fixedly installed at the bottom of the sealing cover (106).

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