Packaging bag heat sealing mechanism

Abstract

The utility model discloses a packaging bag heat-sealing mechanism, which relates to the technical field of packaging bag heat-sealing equipment and comprises a workbench, a shearing device and a heat-sealing device are arranged at the top of the workbench, and a cooling mechanism is arranged at the front end of the workbench and used for cooling a heat-sealed packaging bag. The cooling mechanism comprises a conveying cooling unit; cooling liquid in the circulating unit enters the upper cooling rollers and the mounting frame to circulate, at the moment, a driving motor operates to drive a transmission gear to rotate, the transmission gear drives a plurality of linkage gears to synchronously rotate, and the linkage gears drive a plurality of upper cooling rollers to rotate; and meanwhile, the heat-sealed packaging bag enters the space between the upper cooling roller and the lower cooling roller to be conveyed, and the packaging bag is cooled through cooling liquid, so that rapid cooling of the packaging bag after heat sealing is achieved, and heat damage and deformation of the packaging bag are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of packaging bag heat-sealing equipment, in particular to a packaging bag heat-sealing mechanism. Background Art

[0002] At present, the plastic packaging industry requires plastic packaging bags to have a certain strength and sealing properties to reduce the occurrence of cracking and leakage of packaging bags during transportation. For the sealing of packaging bags, manufacturers often use heat sealing machines to seal the openings of packaging bags.

[0003] According to the public number: CN117508795A, a packaging bag heat-sealing mechanism is disclosed, which includes a placement table and a heat-sealing seat. The placement table is provided with a first driving member, which is used to drive the heat-sealing seat to move in a direction away from or close to the placement table. A hot pressing roller is rotatably provided on the heat-sealing seat, and a second driving member for driving the hot pressing roller to rotate is provided on the heat-sealing seat. A heating member for heating the hot pressing roller is provided on the heat-sealing seat, and a scraper that fits the outer wall of the hot pressing roller is provided on the heat-sealing seat. This application has the effect of scraping off the plastic residue adhering to the hot pressing roller to avoid the plastic residue adhering to the hot pressing roller and affecting the heat-sealing effect of other subsequent packaging bags.

[0004] Based on the above-mentioned prior art, the existing heat-sealing mechanism for packaging bags still has the following problems: the traditional heat-sealing mechanism for packaging bags usually only focuses on the heat-sealing process, that is, the two or more layers of materials of the packaging bag are fused and combined together by heating and pressure. However, this simple heat-sealing method often leads to excessively high temperature in the heat-sealing area, so that the packaging bag material is prone to thermal damage and deformation after heat sealing, affecting the quality of the product and the consumer's experience. For this reason, the utility model provides a heat-sealing mechanism for packaging bags. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a packaging bag heat sealing mechanism, which solves the following problems existing in the existing packaging bag heat sealing mechanism: the traditional packaging bag heat sealing mechanism usually only focuses on the heat sealing process, that is, the two layers or multiple layers of materials of the packaging bag are melted and combined together through heating and pressure; however, this simple heat sealing method often causes the temperature of the heat sealing area to be too high, so that the packaging bag material is prone to heat damage and deformation after heat sealing, affecting the quality of the product and the consumer experience.

[0006] To achieve the above purpose, the utility model is implemented through the following technical solutions: a packaging bag heat sealing mechanism, including a workbench, a shearing device is provided on the top of the workbench, a heat sealing device is provided on the top of the workbench, and a cooling mechanism is provided at the front end of the workbench for cooling the packaging bag after heat sealing, and the cooling mechanism includes:

[0007] The conveying cooling unit is arranged at the front end of the workbench, and comprises a mounting frame fixedly mounted at the front end of the workbench, a slide groove is provided inside the mounting frame, a slide rod is slidably mounted inside the slide groove, a plurality of upper cooling rollers are rotatably mounted inside the slide rod, and a plurality of lower cooling rollers are rotatably mounted inside the mounting frame;

[0008] The circulation unit is arranged at the bottom of the circulation unit and is used for circulating the coolant.

[0009] Preferably, the interiors of the lower cooling roller and the upper cooling roller are both hollow, and rotating tubes are fixedly installed at both ends of the lower cooling roller and the upper cooling roller.

[0010] Preferably, the conveying cooling unit also includes a fixed plate fixedly installed at the bottom of the front end of the sliding rod, a driving motor is fixedly installed on the top of the fixed plate, a transmission gear is fixedly installed on the output end of the driving motor, the rotating tubes at both ends of the upper cooling roller rotate and penetrate the sliding rod, and the outer rings of the rotating tubes at both ends of the upper cooling roller are fixedly installed with linkage gears, and the linkage gears are meshed with the transmission gears.

[0011] Preferably, the conveying cooling unit further comprises a sliding column fixedly mounted on the top of the sliding rod, and an outer ring sleeve of the sliding column is provided with a spring.

[0012] Preferably, the circulation unit includes a coolant storage barrel fixedly mounted on the bottom of the mounting frame by a clamp, water pumps are fixedly mounted on both ends of the coolant storage barrel, a liquid guide tube is fixedly mounted on the outer end of the water pump, a first liquid dispensing tube and a hose are fixedly mounted on the end of the liquid dispensing tube away from the water pump, and a second liquid dispensing tube is fixedly mounted on the end of the hose away from the first liquid dispensing tube.

[0013] Preferably, the branches of the first liquid dispensing pipe at both ends of the coolant storage barrel are rotatably connected to both ends of the lower cooling roller, and the branches of the second liquid dispensing pipe at both ends of the coolant storage barrel are rotatably connected to both ends of the upper cooling roller.

[0014] The utility model provides a packaging bag heat sealing mechanism. Compared with the prior art, it has the following beneficial effects:

[0015] (1) In the packaging bag heat sealing mechanism, the coolant in the circulation unit enters into the upper cooling roller and the interior of the mounting frame for circulation. At this time, the driving motor drives the transmission gear to rotate, and the transmission gear drives a number of linkage gears to rotate synchronously. The linkage gear drives a number of upper cooling rollers to rotate. At the same time, the heat-sealed packaging bag enters between the upper cooling roller and the lower cooling roller for transmission, and the packaging bag is cooled by the coolant, thereby achieving rapid cooling of the packaging bag after heat sealing, thereby avoiding thermal damage and deformation of the packaging bag.

[0016] (2) In the heat sealing mechanism of the packaging bag, the water pump at the right end of the coolant storage barrel is operated to guide the coolant in the coolant storage barrel through the liquid guide tube into the first liquid dispensing tube, the hose and the second liquid dispensing tube, and then the coolant is respectively guided from the right end into the interior of the upper cooling roller and the lower cooling roller through the first liquid dispensing tube and the second liquid dispensing tube, and the water pump at the left end of the coolant storage barrel is operated to guide the coolant back to the interior of the coolant storage barrel through the same structure on the left side, thereby realizing the circulation of the coolant, so that the generated heat can be continuously absorbed and taken away, thereby improving the cooling efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a right-side stereoscopic structural diagram of the utility model;

[0018] Figure 2 This is a three-dimensional structural diagram of the cooling mechanism of the utility model;

[0019] Figure 3 It is a partial three-dimensional structural diagram of the cooling mechanism of the utility model;

[0020] Figure 4 It is a bottom stereoscopic structural diagram of the cooling mechanism of the utility model.

[0021] In the figure: 1-workbench, 2-cooling mechanism, 21-transfer cooling unit, 211-mounting frame, 212-slide groove, 213-sliding rod, 214-upper cooling roller, 215-linking gear, 216-fixed plate, 217-drive motor, 218-transmission gear, 219-sliding column, 2110-spring, 2111-lower cooling roller, 22-circulation unit, 221-coolant storage barrel, 222-water pump, 223-liquid guide tube, 224-first liquid dispensing tube, 225-second liquid dispensing tube, 226-hose, 3-shearing device, 4-heat sealing device. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-Figure 4 , the utility model provides a technical solution:

[0024] A packaging bag heat sealing mechanism comprises a workbench 1, a shearing device 3 is arranged on the top of the workbench 1, a heat sealing device 4 is arranged on the top of the workbench 1, and a cooling mechanism 2 is arranged at the front end of the workbench 1 for cooling the packaging bag after heat sealing, and the cooling mechanism 2 comprises:

[0025] The conveying cooling unit 21 is arranged at the front end of the workbench 1, and includes a mounting frame 211 fixedly mounted at the front end of the workbench 1, a slide groove 212 is provided inside the mounting frame 211, a sliding rod 213 is slidably mounted inside the slide groove 212, a plurality of upper cooling rollers 214 are rotatably mounted inside the sliding rod 213, and a plurality of lower cooling rollers 2111 are rotatably mounted inside the mounting frame 211;

[0026] The circulation unit 22 is disposed at the bottom of the circulation unit 22 and is used to circulate the coolant.

[0027] In this embodiment, the interiors of the lower cooling roller 2111 and the upper cooling roller 214 are both hollow, and rotating tubes are fixedly installed at both ends of the lower cooling roller 2111 and the upper cooling roller 214. The conveying cooling unit 21 also includes a fixed plate 216 fixedly installed at the bottom of the front end of the sliding rod 213, and a driving motor 217 is fixedly installed on the top of the fixed plate 216. A transmission gear 218 is fixedly installed at the output end of the driving motor 217. The rotating tubes at both ends of the upper cooling roller 214 rotate and penetrate the sliding rod 213, and the outer rings of the rotating tubes at both ends of the upper cooling roller 214 are fixedly installed with linkage gears 215, and the linkage gear 215 is meshed with the transmission gear 218.

[0028] The shearing device 3 is in operation, and the cylinder presses down the cutter to shear the packaging bag. The heat sealing device 4 is in operation, and the cylinder presses down the heat sealing plate to heat seal the sheared packaging bag.

[0029] The driving motor 217 is of model OMV800, which is electrically connected to an external power source and is opened and closed by a person operating a control panel.

[0030] The coolant inside the circulation unit 22 enters into the upper cooling roller 214 and the mounting frame 211 for circulation. At this time, the driving motor 217 drives the transmission gear 218 to rotate, and the transmission gear 218 drives a number of meshing linkage gears 215 to rotate synchronously. The linkage gear 215 drives a number of upper cooling rollers 214 to rotate. At the same time, the heat-sealed packaging bag enters between the upper cooling roller 214 and the lower cooling roller 2111 for transmission. The coolant inside the upper cooling roller 214 and the lower cooling roller 2111 cools down the packaging bag, thereby achieving rapid cooling of the packaging bag after heat sealing.

[0031] In this embodiment, the conveying cooling unit 21 further includes a sliding column 219 fixedly installed on the top of the sliding rod 213 , and a spring 2110 is provided on the outer ring of the sliding column 219 .

[0032] The spring 2110 pushes the sliding rod 213 downward by its own elastic force, driving the upper cooling rollers 214 to move synchronously and contact the surface of the lower cooling roller 2111, thereby preventing the packaging bag from being deformed during cooling.

[0033] In this embodiment, the circulation unit 22 includes a coolant storage barrel 221 fixedly installed at the bottom of the mounting frame 211 by a clamp, and water pumps 222 are fixedly installed at both ends of the coolant storage barrel 221, and a liquid guide tube 223 is fixedly installed at the outer end of the water pump 222, and a first liquid distribution tube 224 and a hose 226 are fixedly installed at one end of the liquid distribution tube 223 away from the water pump 222, and a second liquid distribution tube 225 is fixedly installed at one end of the hose 226 away from the first liquid distribution tube 224, and the branches of the first liquid distribution tube 224 at both ends of the coolant storage barrel 221 are rotatably connected to both ends of the lower cooling roller 2111, and the branches of the second liquid distribution tube 225 at both ends of the coolant storage barrel 221 are rotatably connected to both ends of the upper cooling roller 214.

[0034] The model of the water pump 222 is PUN-201, which is electrically connected to an external power source and can be turned on and off by a person operating a control panel.

[0035] The water pump 222 at the right end of the coolant storage barrel 221 is operated to guide the coolant inside the coolant storage barrel 221 into the first liquid dispensing pipe 224, the hose 226, and the second liquid dispensing pipe 225 through the liquid guide pipe 223, and then guides the coolant from the right end into the upper cooling roller 214 and the lower cooling roller 2111 through the first liquid dispensing pipe 224 and the second liquid dispensing pipe 225 respectively, and the water pump 222 at the left end of the coolant storage barrel 221 is operated to guide the coolant inside the upper cooling roller 214 and the lower cooling roller 2111 back to the coolant storage barrel 221 through the liquid guide pipe 223, the first liquid dispensing pipe 224, the second liquid dispensing pipe 225 and the hose 226 on the left side, thereby realizing the circulation of the coolant, which can continuously absorb and take away the generated heat, thereby improving the cooling efficiency.

[0036] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0037] During operation, the user first connects the device to an external power source, then the shearing device 3 is operated to shear the packaging bag, and the sheared packaging bag is driven by the conveyor belt to the bottom of the heat sealing device 4, and the heat sealing device 4 heat-seals the packaging bag, and then the water pump 222 at the right end of the coolant storage barrel 221 is operated to introduce the coolant inside the coolant storage barrel 221 through the liquid guide pipe 223 into the first liquid distribution pipe 224, the hose 226, and the second liquid distribution pipe 225, and then the coolant is introduced from the right end into the upper cooling roller 214 and the lower cooling roller 2111 through the first liquid distribution pipe 224 and the second liquid distribution pipe 225, respectively, and the water pump 222 at the left end of the coolant storage barrel 221 is operated to pass through the liquid guide pipe 223, the first liquid distribution pipe 224, and the second liquid distribution pipe 2 25 and hose 226 guide the coolant inside the upper cooling roller 214 and the lower cooling roller 2111 back to the inside of the coolant storage barrel 221, and at the same time, the driving motor 217 drives the transmission gear 218 to rotate, and the transmission gear 218 drives a number of meshing linkage gears 215 to rotate synchronously, and the linkage gear 215 drives a number of upper cooling rollers 214 to rotate, and the spring 2110 pushes the sliding rod 213 downward through its own elastic force, driving a number of upper cooling rollers 214 to move synchronously and contact the surface of the lower cooling roller 2111, and at the same time, the heat-sealed packaging bag enters between the upper cooling roller 214 and the lower cooling roller 2111 for transmission, and the coolant inside the upper cooling roller 214 and the lower cooling roller 2111 cools the packaging bag.

[0038] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0039] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A packaging bag heat sealing mechanism, comprising a workbench (1), a shearing device (3) is arranged on the top of the workbench (1), and a heat sealing device (4) is arranged on the top of the workbench (1), characterized in that: The front end of the workbench (1) is provided with a cooling mechanism (2) for cooling the heat-sealed packaging bag, and the cooling mechanism (2) comprises: A conveying cooling unit (21) is arranged at the front end of the workbench (1), comprising a mounting frame (211) fixedly mounted at the front end of the workbench (1), a slide groove (212) is provided inside the mounting frame (211), a sliding rod (213) is slidably mounted inside the slide groove (212), a plurality of upper cooling rollers (214) are rotatably mounted inside the sliding rod (213), and a plurality of lower cooling rollers (2111) are rotatably mounted inside the mounting frame (211); The circulation unit (22) is arranged at the bottom of the circulation unit (22) and is used to circulate the cooling liquid.

2. A packaging bag heat sealing mechanism according to claim 1, characterized in that: The interiors of the lower cooling roller (2111) and the upper cooling roller (214) are both hollow, and rotating tubes are fixedly installed at both ends of the lower cooling roller (2111) and the upper cooling roller (214).

3. A packaging bag heat sealing mechanism according to claim 1, characterized in that: The conveying cooling unit (21) also includes a fixing plate (216) fixedly mounted on the bottom of the front end of the sliding rod (213), a driving motor (217) fixedly mounted on the top of the fixing plate (216), a transmission gear (218) fixedly mounted on the output end of the driving motor (217), the rotating tubes at both ends of the upper cooling roller (214) rotate and penetrate the sliding rod (213), and the outer rings of the rotating tubes at both ends of the upper cooling roller (214) are fixedly mounted with linkage gears (215), and the linkage gears (215) are meshed with the transmission gears (218).

4. A packaging bag heat sealing mechanism according to claim 1, characterized in that: The conveying cooling unit (21) further comprises a sliding column (219) fixedly mounted on the top of the sliding rod (213), and an outer ring sleeve of the sliding column (219) is provided with a spring (2110).

5. The packaging bag heat sealing mechanism according to claim 1, characterized in that: The circulation unit (22) comprises a coolant storage barrel (221) fixedly mounted on the bottom of the mounting frame (211) by means of a clamp, a water pump (222) being fixedly mounted on both ends of the coolant storage barrel (221), a liquid guide tube (223) being fixedly mounted on the outer end of the water pump (222), a first liquid distribution tube (224) and a hose (226) being fixedly mounted on one end of the liquid distribution tube (223) away from the water pump (222), and a second liquid distribution tube (225) being fixedly mounted on one end of the hose (226) away from the first liquid distribution tube (224).

6. A packaging bag heat sealing mechanism according to claim 5, characterized in that: The branches of the first liquid distribution pipe (224) at both ends of the cooling liquid storage barrel (221) are both rotatably connected to the two ends of the lower cooling roller (2111), and the branches of the second liquid distribution pipe (225) at both ends of the cooling liquid storage barrel (221) are both rotatably connected to the two ends of the upper cooling roller (214).

Images