Heat sealing device for valve port strip of square-bottom valve port bag

Abstract

The utility model discloses a heat sealing device for a valve port strip of a square bottom valve bag, which relates to the technical field of heat sealing of the valve port strip and comprises a supporting plate, a guide plate is fixedly mounted at the top of the side end of the supporting plate, a shell is fixedly mounted at the top, far away from the supporting plate, of the guide plate, and a first telescopic motor is fixedly mounted at the top of the inner wall of the shell. An air suction machine is fixedly installed on the outer wall of the first telescopic motor, a first supporting rod is fixedly installed at the end, away from the shell, of the first telescopic motor, a second supporting rod is fixedly installed at the bottom of the first supporting rod, a second telescopic motor is fixedly installed at the center of the top of the second supporting rod, and a telescopic rod is fixedly installed at the bottom of the second telescopic motor. According to the utility model, flour residues on the inner wall of the valve port strip are automatically cleaned, so that tight contact between materials during heat sealing is ensured, the problem of untight heat sealing caused by the flour residues is effectively prevented, and the sealing property and the packaging quality of the square-bottom valve port bag are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of heat sealing of valve strip, in particular to a heat sealing device for the valve strip of a square bottom valve bag. Background Technique

[0002] In the packaging industry, square bottom valve bags are widely used in the packaging of various powders, granules and bulk materials due to their unique bottom structure and convenient valve design, especially playing an important role in the packaging of food raw materials such as flour.

[0003] Before heat sealing the flour belt, due to the adhesiveness of flour, a certain amount of flour particles often remain on the inner wall of the valve strip. Most of the cleaning of the inner wall of the valve strip on the market is carried out by workers using tools such as brushes and vacuum cleaners to clean the inner wall of the valve strip to ensure that its surface is clean and residue-free. However, manual cleaning is inefficient and prone to incomplete cleaning or missed cleaning, which will hinder the close contact between the heat sealing materials, resulting in a decrease in the adhesion force at the heat sealing part, and then problems such as loose heat sealing and poor sealing performance.

[0004] In view of this, this application is specifically proposed. Content of the Utility Model

[0005] The purpose of the utility model is to provide a heat sealing device for the valve strip of a square bottom valve bag to solve the problems put forward in the above background technique.

[0006] To solve the above technical problems, a heat sealing device for the valve strip of a square bottom valve bag provided by the utility model includes a support plate. A guide plate is fixedly installed at the top of the side end of the support plate. A housing is fixedly installed at the top of the guide plate away from the support plate. A telescopic motor 1 is fixedly installed on the top inner wall of the housing. An air suction machine is fixedly installed on the outer wall of the telescopic motor 1. One end of the telescopic motor 1 away from the housing is fixedly installed with a support rod 1. A support rod 2 is fixedly installed at the bottom of the support rod 1. A telescopic motor 2 is fixedly installed at the center of the top of the support rod 2. A telescopic rod is fixedly installed at the bottom of the telescopic motor 2. A protective box is fixedly installed on the side wall at the bottom end of the telescopic rod. A fixing plate is fixedly installed on the side wall of the telescopic rod. A rotary motor is fixedly installed on the outer wall at the bottom of the fixing plate. A gear is fixedly installed at the driving end of the rotary motor. A rack is meshed and connected to the outer wall of the gear. The side wall of the rack is slidably connected to the inner wall of the protective box. A scraping plate is fixedly installed at one end of the rack away from the gear. A positioning plate is fixedly installed on the side wall at the bottom end of the support rod 2.

[0007] Furthermore, a coil spring is rotatably installed inside the scraping plate. A flexible scraping strip is fixedly installed on the outer wall of the coil spring. One end of the flexible scraping strip away from the coil spring is fixedly installed on the outer wall of another scraping plate.

[0008] Further, suction holes are provided in the inner wall of the positioning plate, and the interval between the suction holes is 2 to 3 cm.

[0009] Further, a telescopic column is fixedly installed on the inner wall of one end of the outer shell away from the first telescopic motor, and a heat-sealing plate is fixedly installed at the end of the telescopic column away from the outer shell.

[0010] Further, a rotating shaft is rotatably installed in the inner wall of the support plate, and a conveyor belt is connected to the outer wall of the rotating shaft.

[0011] Further, an observation window is provided on the outer side wall of the outer shell, and the material of the observation window is acrylic.

[0012] Further, a control cabinet is fixedly installed on the outer wall of the outer shell on the same plane as the observation window, and a touch screen is provided on the top of the control cabinet.

[0013] Further, the conveyor belt is made of rubber, and integrally formed anti-slip patterns are provided on the rubber surface.

[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows: By automatically cleaning the flour residue on the inner wall of the valve port strip, the tight contact between materials during heat sealing is ensured, effectively preventing the problem of poor heat sealing caused by flour residue, thereby improving the sealing performance and packaging quality of the square-bottom valve bag. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a front structural schematic diagram of a heat-sealing device for a valve port strip of a square-bottom valve bag;

[0016] Figure 2 is a right structural schematic diagram of a heat-sealing device for a valve port strip of a square-bottom valve bag;

[0017] Figure 3 is a structural schematic diagram of a cleaning device of a heat-sealing device for a valve port strip of a square-bottom valve bag;

[0018] Figure 4 is a schematic diagram of the internal structure of a scraper of a heat-sealing device for a valve port strip of a square-bottom valve bag;

[0019] Figure 5 is a structural schematic diagram of a suction device on the inner wall of a positioning plate of a heat-sealing device for a valve port strip of a square-bottom valve bag;

[0020] Figure 6 is a left structural schematic diagram of a heat-sealing device for a valve port strip of a square-bottom valve bag;

[0021] Figure 7 is a structural schematic diagram of a conveying device of a heat-sealing device for a valve port strip of a square-bottom valve bag.

[0022] In the figure: 1, support plate; 2, conveyor belt; 3, guide plate; 4, outer shell; 5, suction machine; 6, rotating shaft; 7, observation window; 8, control cabinet; 9, touch screen; 10, first telescopic motor; 11, heat-sealing plate; 12, first support rod; 13, second telescopic motor; 14, second support rod; 15, telescopic rod; 16, fixing plate; 17, rotating motor; 18, protection box; 19, scraper; 20, positioning plate; 21, flexible scraping strip; 22, torsion spring; 23, rack; 24, gear; 25, telescopic column; 26, suction hole. Specific implementation mode

[0023] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. 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.

[0024] Please refer to Figures 1-7 , the present invention provides a technical solution: a heat-sealing device for the valve opening strip of a square-bottom valve bag, including a support plate 1, a guide plate 3 is fixedly installed at the top of the side end of the support plate 1, an outer shell 4 is fixedly installed at the top of the guide plate 3 away from the support plate 1, a first telescopic motor 10 is fixedly installed on the inner wall top of the outer shell 4, a suction machine 5 is fixedly installed on the outer wall of the first telescopic motor 10, a first support rod 12 is fixedly installed at the end of the first telescopic motor 10 away from the outer shell 4, a second support rod 14 is fixedly installed at the bottom of the first support rod 12, a second telescopic motor 13 is fixedly installed at the center of the top of the second support rod 14, a telescopic rod 15 is fixedly installed at the bottom of the second telescopic motor 13, a protection box 18 is fixedly installed on the side wall of the bottom end of the telescopic rod 15, a fixing plate 16 is fixedly installed on the side wall of the telescopic rod 15, a rotating motor 17 is fixedly installed on the outer wall of the bottom of the fixing plate 16, a gear 24 is fixedly installed at the driving end of the rotating motor 17, a rack 23 is meshed and connected to the outer wall of the gear 24, the side wall of the rack 23 is slidably connected to the inner wall of the protection box 18, a scraper 19 is fixedly installed at the end of the rack 23 away from the gear 24, and a positioning plate 20 is fixedly installed on the side wall of the bottom end of the second support rod 14.

[0025] It should be noted that: through the coordinated work of automated components such as the first telescopic motor 10, the second telescopic motor 13, and the rotating motor 17, the efficient cleaning and heat-sealing of the valve opening strip are realized, reducing manual intervention and improving production efficiency. At the same time, the cooperation of the rotating motor 17 with the gear 24 and the rack 23 enables the scraper 19 and the flexible scraping strip 21 to adjust their positions as needed to adapt to valve opening strips of different shapes and sizes, enhancing the versatility and adaptability of the equipment.

[0026] Please refer to Figure 4, the present utility model provides a technical solution: a heat sealing device for the valve mouth strip of a square-bottom valve bag, including a scraper 19 with a torsion spring 22 rotatably installed inside. A flexible scraping strip 21 is fixedly installed on the outer wall of the torsion spring 22. One end of the flexible scraping strip 21 away from the torsion spring 22 is fixedly installed on the outer wall of another scraper 19.

[0027] It should be noted that: the flexible scraping strip 21 maintains a certain tension state through the elastic force of the torsion spring 22, can fit more closely on the inner wall of the valve mouth strip, effectively scrape off attached impurities such as flour, and improve the cleaning effect;

[0028] Furthermore, the torsion spring 22 enables the flexible scraping strip 21 to automatically reset to the initial position after completing the scraping action, without the need for an additional power source or manual operation, improving the automation degree and usage efficiency of the equipment.

[0029] Please refer to Figure 5 , the present utility model provides a technical solution: a heat sealing device for the valve mouth strip of a square-bottom valve bag, including a positioning plate 20 with air suction holes 26 opened on its inner wall. The interval between the air suction holes 26 is 2 to 3 cm.

[0030] It should be noted that: the reasonable setting of the interval of the air suction holes 26 ensures that the positioning plate 20 can provide a uniform adsorption force when adsorbing the valve mouth strip, avoiding problems such as the valve mouth strip shifting in position or being poorly adsorbed due to uneven adsorption force.

[0031] Please refer to Figure 2 , the present utility model provides a technical solution: a heat sealing device for the valve mouth strip of a square-bottom valve bag, including a telescopic column 25 fixedly installed on the inner wall of one end of the housing 4 away from the telescopic motor one 10. One end of the telescopic column 25 away from the housing 4 is fixedly installed with a heat sealing plate 11.

[0032] It should be noted that: the telescopic column 25 allows the heat sealing plate 11 to perform precise telescopic movement, so as to ensure that the heat sealing plate 11 can accurately contact the valve mouth strip and achieve precise heat sealing operation.

[0033] Please refer to Figure 7 , the present utility model provides a technical solution: a heat sealing device for the valve mouth strip of a square-bottom valve bag, including a support plate 1 with a rotating shaft 6 rotatably installed on its inner wall. A conveyor belt 2 is connected to the outer wall of the rotating shaft 6.

[0034] It should be noted that: the continuous operation of the conveyor belt 2 enables the square-bottom valve bag to continuously and smoothly move to the heat sealing position, improving the production efficiency and realizing the continuity and automation of production.

[0035] Please refer to Figure 1, the present utility model provides a technical solution: a heat-sealing device for the valve strip of a square-bottom valve bag, including an outer shell 4, and an observation window 7 is provided on the outer side wall of the outer shell 4, and the material of the observation window 7 is acrylic.

[0036] It should be noted that: The acrylic material has excellent transparency, which can clearly observe the working state inside the outer shell 4, facilitating the monitoring of the operation of the heat-sealing device and ensuring the safety and accuracy of the operation.

[0037] Please refer to Figure 1 , the present utility model provides a technical solution: a heat-sealing device for the valve strip of a square-bottom valve bag, including a control cabinet 8 fixedly installed on the outer wall of the outer shell 4 at the same plane as the observation window 7, and a touch screen 9 is provided on the top of the control cabinet 8.

[0038] It should be noted that: Installing the control cabinet 8 at the position on the outer side of the outer shell 4 at the same plane as the observation window 7 enables the operator to conveniently control and monitor the equipment through the touch screen 9 without frequently moving positions or searching for control buttons, improving the convenience and efficiency of the operation.

[0039] Please refer to Figure 7 , the present utility model provides a technical solution: a heat-sealing device for the valve strip of a square-bottom valve bag, including a conveyor belt 2 made of rubber, and anti-slip patterns are integrally formed on the rubber surface.

[0040] It should be noted that: The anti-slip patterns can increase the friction between the conveyor belt 2 and the material, preventing the material from sliding or shifting during the conveying process and ensuring that the material can be stably and accurately conveyed to the designated position.

[0041] Working principle: Place the square bottom valve bag on the surface of the conveyor belt 2, and then drive the conveyor belt 2 to move forward in the direction of the shell 4 until the square bottom valve bag is located at the bottom of the positioning plate 20. At this time, start the telescopic motor 10 to make the inner wall of the positioning plate 20 contact the outer wall of the valve mouth strip of the square bottom valve bag. At the same time, the suction hole 26 adsorbs the outer wall of the valve mouth strip on the inner wall of the positioning plate 20 under the operation of the suction machine 5. At this time, start the telescopic motor 2 13 synchronously to extend the telescopic rod 15, and at the same time, the rotating motor 17 drives the gear 24 to mesh the rack 23 so that the scraper 19 and the flexible scraper strip 21 extend toward the positioning plate 20, and their outer walls are attached to the top of the inner wall of the valve mouth strip. The telescopic rod 15 is then extended downward to push the flour attachment on the inner wall of the valve strip into the interior of the square bottom valve bag. The telescopic rod 15 is then retracted upward to separate the positioning plate 20 and the flexible scraper strip 21 from the inner wall of the valve strip. At the same time, the telescopic motor 10 separates the positioning plate 20 from the outer wall of the square bottom valve bag, and drives the conveyor belt 2 to continue moving forward until the outer wall of the valve strip contacts the surface of the heat sealing plate 11. The telescopic column 25 is pushed toward the heat sealing plate 11 to heat-seal the valve strip. The overall device does not require manual cleaning of the inner wall residue, thereby preventing the valve strip from having reduced adhesion at the heat seal due to flour residue, thereby improving the sealing performance of the square bottom valve bag.

Claims

1. A heat sealing device for a valve strip of a square bottom valve bag, comprising a support plate (1), characterized in that: A guide plate (3) is fixedly mounted on the top of the side end of the support plate (1); a housing (4) is fixedly mounted on the top of the guide plate (3) away from the support plate (1); a telescopic motor (10) is fixedly mounted on the top of the inner wall of the housing (4); a suction machine (5) is fixedly mounted on the outer wall of the telescopic motor (10); a support rod (12) is fixedly mounted on the end of the telescopic motor (10) away from the housing (4); a support rod (14) is fixedly mounted on the bottom of the support rod (12); a telescopic motor (13) is fixedly mounted at the center of the top of the support rod (14); a telescopic motor (13) is fixedly mounted on the bottom of the telescopic motor (13). A retractable rod (15), a protective box (18) is fixedly installed on the side wall of the bottom end of the telescopic rod (15), a fixing plate (16) is fixedly installed on the side wall of the telescopic rod (15), a rotating motor (17) is fixedly installed on the outer wall of the bottom of the fixing plate (16), a gear (24) is fixedly installed on the driving end of the rotating motor (17), the outer wall of the gear (24) is meshingly connected with a rack (23), the side wall of the rack (23) is slidably connected to the inner wall of the protective box (18), a scraper (19) is fixedly installed on the end of the rack (23) away from the gear (24), and a positioning plate (20) is fixedly installed on the side wall of the bottom end of the second support rod (14).

2. A heat sealing device for the valve strip of a square bottom valve bag as claimed in claim 1, characterized in that: A coil spring (22) is rotatably mounted inside the scraper (19), a flexible scraper strip (21) is fixedly mounted on the outer wall of the coil spring (22), and one end of the flexible scraper strip (21) away from the coil spring (22) is fixedly mounted on the outer wall of another scraper (19).

3. A heat sealing device for the valve strip of a square bottom valve bag as claimed in claim 1, characterized in that: The inner wall of the positioning plate (20) is provided with air suction holes (26), and the intervals between the air suction holes (26) are 2 to 3 cm.

4. A heat sealing device for the valve strip of a square bottom valve bag as claimed in claim 1, characterized in that: A telescopic column (25) is fixedly mounted on the inner wall of one end of the housing (4) away from the telescopic motor (10), and a heat sealing plate (11) is fixedly mounted on one end of the telescopic column (25) away from the housing (4).

5. A heat sealing device for the valve strip of a square bottom valve bag as claimed in claim 1, characterized in that: A rotating shaft (6) is rotatably mounted on the inner wall of the support plate (1), and a conveyor belt (2) is connected to the outer wall of the rotating shaft (6).

6. A heat sealing device for the valve strip of a square bottom valve bag as claimed in claim 1, characterized in that: An observation window (7) is provided on the outer side wall of the housing (4), and the material of the observation window (7) is acrylic.

7. A heat sealing device for the valve strip of a square bottom valve bag as claimed in claim 1, characterized in that: A control cabinet (8) is fixedly mounted on the outer wall of the housing (4) which is located on the same plane as the observation window (7), and a touch screen (9) is provided on the top of the control cabinet (8).

8. A heat sealing device for the valve strip of a square bottom valve bag as claimed in claim 5, characterized in that: The conveyor belt (2) is made of rubber, and an integrally formed anti-skid pattern is provided on the rubber surface.

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