Continuous heat sealing machine

Abstract

The utility model provides a continuous heat sealing machine. A continuous heat sealing machine comprises a rack, a fixing plate, a conveying mechanism and the like. The rack is connected with a fixed plate; the rack is connected with a conveying mechanism, and the conveying mechanism is connected with the fixing plate. The external pump is controlled to convey air into the ventilation plate, then the air is blown out through the air outlet in the connecting plate, and the blown-out air plays a role in heat dissipation on the heating plate, so that the problem that the heating plate in the hot-pressing equipment is always in a high-temperature state due to high working frequency of hot-sealing of the film bag is avoided, and the service life of the hot-pressing equipment is prolonged. Therefore, the area between the hot-pressing equipment and the workbench is in a high-temperature state after working for a long time, and the film bag entering the area is softened due to the state, so that the problems of deformation, hemming and the like occur.

Description

Technical Field

[0001] This utility model relates to the field of heat sealing technology, and in particular to a continuous heat sealing machine. Background Technology

[0002] Currently, heat sealing is the most common and practical sealing method for film bags. The principle is to use various external conditions (such as electric heating, high-frequency voltage, or ultrasound) to heat the sealing area of ​​the film bag into a viscous state, and with the help of a certain pressure, the two layers of film are fused together, and after cooling, they maintain a certain strength.

[0003] In the prior art, during the heat sealing process of film bags, due to the high working frequency of film bag heat sealing, the hot press head in the hot press equipment will always be at a high temperature. Therefore, the area between the hot press equipment and the worktable will be at a high temperature after long-term operation. This condition will cause the film bag entering the area to soften, resulting in problems such as deformation and curling.

[0004] Meanwhile, when heat sealing tape is used to heat seal film bags, film residue will adhere to the heat sealing tape. If the heat sealing tape is not cleaned in time, the film residue will interfere with subsequent heat sealing operations, resulting in problems such as uneven sealing or reduced sealing quality.

[0005] utility model

[0006] To overcome the drawback that the hot press head is always at a high temperature, which causes the area between the hot press equipment and the worktable to remain at a high temperature after long-term operation, resulting in softening of the film bag entering the area and causing problems such as deformation and curling, this invention provides a continuous heat sealing machine.

[0007] The technical solution of this utility model is as follows: a continuous heat sealing machine, including a frame and a fixed plate; the fixed plate is connected to the frame; it also includes a conveying mechanism, a guide plate, a heat sealing belt, a U-shaped plate, spring columns, a heating plate, a ventilation plate, and a connecting plate; a conveying mechanism for conveying film bags is connected to the frame, and the conveying mechanism is connected to the fixed plate; a guide plate is fixedly connected to the lower middle part of the fixed plate, and a guide groove is opened on the guide plate; several heat sealing belts are drivenly connected to the lower side of the fixed plate, and one end of the heat sealing belt is connected to the conveying mechanism; a U-shaped plate is fixedly connected to the lower front part and the lower rear part of the fixed plate; several spring columns are fixedly connected to each U-shaped plate; a heating plate is fixedly connected to all the front spring columns, and another heating plate is fixedly connected to all the rear spring columns, and the heating plate is in contact with the inner side of the heat sealing belt; several ventilation plates are fixedly connected to the fixed plate; several connecting plates are provided on each ventilation plate, and the interior of the connecting plate is hollow; a through groove is opened on each connecting plate.

[0008] Furthermore, it also includes connecting rods, impellers, first wheels, connecting strips, L-shaped plates, elastic elements, second wheels, and scrapers; each ventilation plate has a connecting rod rotatably connected to its center; each connecting rod has several impellers fixedly connected to its left side; each connecting rod has a first wheel fixedly connected to its right side, and the first wheel is eccentrically connected to the connecting rod; each fixed plate has several connecting strips slidably connected to its right side; each fixed plate has several L-shaped plates fixedly connected to its lower right side, and the L-shaped plates are slidably connected to the connecting strips; each connecting strip has an elastic element fixedly connected to its upper part, and one end of the elastic element is fixedly connected to the fixed plate; each connecting strip has a second wheel fixedly connected to its left center, and the second wheel cooperates with the first wheel; each connecting strip has a scraper fixedly connected to its lower side for scraping off film residue on the heat-sealing tape.

[0009] Furthermore, the scraper is designed as a right-angled triangle.

[0010] Furthermore, it also includes bristles; each scraper has at least twenty bristles fixedly connected to its left side in a matrix arrangement.

[0011] Furthermore, it also includes connecting pipes and air outlet plates; each connecting plate has a connecting pipe on its right side; and each connecting pipe has an air outlet plate at one end.

[0012] Furthermore, the conveying mechanism includes a first conveyor belt and a second conveyor belt; a first conveyor belt is driven to the front and rear of the frame; several second conveyor belts are driven to the lower left side of the fixed plate, and one end of the second conveyor belt is driven to the frame.

[0013] The beneficial effect is that during the movement of the film bag, the top of the film bag will contact the guide groove on the guide plate, thereby positioning the film bag through the guide groove and preventing the film bag from tilting, which would affect the quality of the subsequent heat sealing of the film bag.

[0014] The external pump supplies air into the ventilation plate, and the air is then blown out through the air outlet on the connecting plate. The blown air will dissipate heat from the heating plate, thus preventing the heating plate in the hot press equipment from being constantly at a high temperature due to the high frequency of heat sealing of the film bag. This would prevent the area between the hot press equipment and the worktable from being at a high temperature after long-term operation, which would cause the film bag entering the area to soften, resulting in problems such as deformation and curling.

[0015] Meanwhile, the design of the connecting plate helps to block the heat emitted by the heating plate, thus preventing the heat from spreading to the top and bottom of the heating plate when it is working at high temperatures. This would prevent the parts outside the sealing edge of the film bag from being heated to a certain extent and softening. Furthermore, since a channel is formed between the connecting plate and the heating plate, the heat can be better carried outward when the heating plate is dissipating heat, and this also further prevents the heat from spreading to the top and bottom of the heating plate.

[0016] At the same time, when air enters the connecting plate, some of the air will be blown out through the channel, and the blown air will blow on the sealing edge of the film bag, thereby further preventing the heat from spreading on the film bag.

[0017] The scraper will remove the film residue adhering to the heat sealing tape, so that the heat sealing tape is cleaned in time. This avoids the problem that if the film residue is not treated in time, it will interfere with the subsequent heat sealing operation, resulting in uneven sealing or reduced sealing quality.

[0018] It is important to note that because the scraper is designed as a right-angled triangle, meaning the rear side of the scraper is beveled, and the film residue will adhere to the scraper after being scraped off, as more and more film residue adheres to the scraper, the bevel on the scraper will guide the film residue. This causes the film residue to move to the right side of the scraper during the scraping process due to the squeezing between the film residues, thus preventing excessive accumulation of film residue at the contact point between the scraper and the heat sealing tape, which would affect the scraping of film residue from the heat sealing tape.

[0019] The brush bristles will create an up-and-down brushing effect on the surface of the heat-sealing tape, cleaning away dust and other impurities. This prevents dust and other impurities from affecting the contact between the heating plate and the film bag, which could lead to problems such as an insecure or defective seal on the film bag. Attached Figure Description

[0020] Figure 1 This is a first-view structural schematic diagram of the continuous heat sealing machine disclosed in this utility model.

[0021] Figure 2 This is a partial structural schematic diagram of the continuous heat sealing machine disclosed in this utility model;

[0022] Figure 3 This is a first partial sectional view of the continuous heat sealing machine disclosed herein;

[0023] Figure 4 This is an enlarged view of point A in the continuous heat sealing machine disclosed in this utility model;

[0024] Figure 5This is a second partial sectional view of the continuous heat sealing machine disclosed in this utility model;

[0025] Figure 6 This is an enlarged view of section B of the continuously heat-sealing machine disclosed in this utility model;

[0026] Figure 7 This is a third partial sectional view of the continuously heat-sealing machine disclosed in this utility model.

[0027] Component names and serial numbers in the diagram: 1-Frame, 2-Fixing plate, 3-Guide plate, 4-Heat sealing belt, 5-U-shaped plate, 6-Spring column, 7-Heating plate, 8-Ventilation plate, 9-Connecting plate, 91-Through groove, 10-Connecting rod, 11-Impeller, 12-First wheel, 13-Connecting strip, 14-L-shaped plate, 15-Elastic element, 16-Second wheel, 17-Scraper, 18-Brush bristles, 19-Connecting pipe, 20-Air outlet plate, 21-First conveyor belt, 22-Second conveyor belt. Detailed Implementation

[0028] The preferred technical solution of the present invention will be described in detail below with reference to the accompanying drawings.

[0029] Example

[0030] A continuous heat sealing machine, such as Figure 1-7 As shown, it includes a frame 1 and a fixing plate 2; the fixing plate 2 is connected to the frame 1;

[0031] It also includes a conveying mechanism, a guide plate 3, a heat-sealing belt 4, a U-shaped plate 5, a spring column 6, a heating plate 7, a ventilation plate 8, and a connecting plate 9; the conveying mechanism is connected to the frame 1, and the conveying mechanism is connected to the fixed plate 2; the guide plate 3 is fixedly connected to the lower middle part of the fixed plate 2, and the guide plate 3 has a guide groove; two heat-sealing belts 4 are symmetrically distributed front and rear on the lower side of the fixed plate 2, and one end of the heat-sealing belt 4 is connected to the conveying mechanism; a U-shaped plate 5 is fixedly connected to the lower front part and the lower rear part of the fixed plate 2; each U-shaped plate 5 has... Each fixed connection has two spring columns 6 symmetrically distributed from left to right; a heating plate 7 is fixedly connected to all the front spring columns 6, and another heating plate 7 is fixedly connected to all the rear spring columns 6, and the heating plate 7 is in contact with the inner side of the heat sealing strip 4; two ventilation plates 8 symmetrically distributed from front to back are fixedly connected to the fixed plate 2; each ventilation plate 8 is fixedly connected to and connected to two connecting plates 9 symmetrically distributed from top to bottom, and the interior of the connecting plate 9 is set to be hollow for air passage; each connecting plate 9 has a through groove 91.

[0032] It also includes a connecting rod 10, an impeller 11, a first wheel 12, a connecting strip 13, an L-shaped plate 14, an elastic element 15, a second wheel 16, and a scraper 17; each ventilation plate 8 has a connecting rod 10 rotatably connected to its center; each connecting rod 10 has at least five impellers 11 fixedly connected to its left side, which are equidistantly distributed; each connecting rod 10 has a first wheel 12 fixedly connected to its right side, and the first wheel 12 is eccentrically connected to the connecting rod 10; the right side of the fixed plate 2 has two impellers slidably connected to its front. The connecting strips 13 are symmetrically distributed at the rear; two L-shaped plates 14 are fixedly connected to the lower right side of the fixing plate 2, and the L-shaped plates 14 are slidably connected to the connecting strips 13; an elastic element 15 is fixedly connected to the upper part of each connecting strip 13, and one end of the elastic element 15 is fixedly connected to the fixing plate 2; a second wheel 16 is fixedly connected to the middle left side of each connecting strip 13, and the second wheel 16 cooperates with the first wheel 12; a scraper 17 is fixedly connected to the lower side of each connecting strip 13.

[0033] The scraper 17 is set as a right-angled triangle.

[0034] It also includes bristles 18; each scraper 17 has at least twenty bristles 18 fixedly connected to its left side in a matrix arrangement.

[0035] It also includes a connecting pipe 19 and an air outlet plate 20; each connecting plate 9 has a connecting pipe 19 fixedly connected and connected to the right side; each connecting pipe 19 has an air outlet plate 20 fixedly connected and connected to one end.

[0036] The conveying mechanism includes a first conveyor belt 21 and a second conveyor belt 22; the front and rear parts of the frame 1 are each connected to a first conveyor belt 21; the lower left side of the fixed plate 2 is connected to two second conveyor belts 22 that are symmetrically distributed front and back, and one end of the second conveyor belt 22 is connected to the frame 1.

[0037] When using this continuous heat sealing machine, firstly, the ventilation plate 8 is connected to the external pump. Then, the operator places the film bag to be heat-sealed between the two first conveyor belts 21, with the film bag positioned at the left end of the first conveyor belt 21. During this process, the first conveyor belt 21 and the second conveyor belt 22 are simultaneously controlled. The first conveyor belt 21 will then move the film bag to the right. During this movement, the uppermost part of the film bag will contact the guide groove on the guide plate 3, thus positioning the film bag and preventing it from tilting, which would affect the subsequent heat sealing quality. Simultaneously, the film bag will also contact the second conveyor belt 22. Figure 1 As shown;

[0038] Then, the right-moving film bag will contact the heat-sealing belt 4 and enter between the two heat-sealing belts 4. At the same time, the heating plate 7 is controlled to work, so that the heating plate 7 heats the heat-sealing belt 4 to the specified temperature. Then, the heated heat-sealing belt 4 will heat-seal the film bag. During this process, the external pump is controlled to supply air to the ventilation plate 8. Then, the air will be blown out through the air outlet on the connecting plate 9. The blown-out air will play a role in dissipating heat from the heating plate 7, thereby preventing the heating plate 7 in the hot press equipment from being in a high-temperature state due to the high working frequency of the film bag heat sealing. This would prevent the area between the hot press equipment and the workbench from being in a high-temperature state after long-term operation. In a warm state, the film bag entering the area will soften, resulting in deformation and curling. At the same time, the design of the connecting plate 9 can block the heat emitted by the heating plate 7, thus preventing the heat from spreading to the upper and lower parts of the heating plate 7 when it is working at high temperature. This would cause the part outside the sealing edge of the film bag to be heated to a certain extent and soften. Furthermore, since a channel is formed between the connecting plate 9 and the heating plate 7, the heat can be better carried outward when the heating plate 7 is dissipated, and the heat is further prevented from spreading to the upper and lower parts of the heating plate 7.

[0039] At the same time, when air enters the connecting plate 9, some air will be blown out through the channel 91, and the blown air will blow on the sealing edge of the film bag, thereby further preventing the heat from spreading on the film bag.

[0040] Meanwhile, during the heat sealing process of the film bag by the heat sealing belt 4, film residue will adhere to the heat sealing belt 4. Therefore, as the heat sealing belt 4 rotates, the scraper 17 will scrape off the film residue adhering to the heat sealing belt 4, so that the heat sealing belt 4 is cleaned in time. This avoids the film residue from interfering with subsequent heat sealing operations if it is not treated in time, resulting in uneven sealing or reduced sealing quality. It should be noted that since the scraper 17 is set as a right-angled triangle, that is, the rear side of the scraper 17 is a slope, and the film residue will adhere to the scraper 17 after scraping, as more and more film residue adheres to the scraper 17, the slope of the scraper 17 will guide the film residue, so that during the scraping process, the film residue will move towards the scraper 17 under the pressure between the film residues. On the right, this avoids excessive film residue accumulating at the contact point between the scraper 17 and the heat-sealing belt 4, thus preventing the scraper 17 from removing film residue from the heat-sealing belt 4. At the same time, when the external pump delivers air to the ventilation plate 8, the air will contact the impeller 11 and force the impeller 11 to rotate. The connecting rod 10 and the first wheel 12 rotate synchronously with the impeller 11. During this process, since the first wheel 12 and the connecting rod 10 are eccentrically connected, the first wheel 12 will force the second wheel 16 to move upward. The connecting strip 13, scraper 17 and brush bristles 18 move upward synchronously with the second wheel 16. The elastic element 15 is compressed, and the brush bristles 18 will produce an up-and-down brushing effect on the surface of the heat-sealing belt 4, so that dust and other impurities on the surface of the heat-sealing belt 4 are cleaned, thus avoiding dust and other impurities from affecting the contact between the heating plate 7 and the film bag, resulting in problems such as the film bag not being sealed firmly or having defects.

[0041] Then, when the heat-sealed film bag moves to the air outlet plate 20, some of the air entering the connecting plate 9 will also enter the air outlet plate 20 through the connecting pipe 19 and be blown out through the air outlet plate 20. The blown-out air will cool the heat-sealed film bag, causing the film bag at the heat-sealed area to solidify and adhere quickly. As the heat-sealed film bag moves to the right, it will detach from the heat-sealing belt 4. Then, under the action of the first conveyor belt 21, the heat-sealed film bag will continue to move to the right until the film bag falls into the external collection box and is collected.

[0042] The present application has been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of the present application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of the present application. Therefore, the content of this specification should not be construed as a limitation of the present application.

Claims

1. A continuous heat sealing machine, comprising a frame (1) and a fixing plate (2); the fixing plate (2) is connected to the frame (1); characterized in that, It also includes a conveying mechanism, a guide plate (3), a heat sealing belt (4), a U-shaped plate (5), a spring column (6), a heating plate (7), a ventilation plate (8), and a connecting plate (9); a conveying mechanism for conveying film bags is connected to the frame (1), and the conveying mechanism is connected to the fixed plate (2); a guide plate (3) is fixedly connected to the middle of the lower side of the fixed plate (2), and a guide groove is provided on the guide plate (3); several heat sealing belts (4) are drivenly connected to the lower side of the fixed plate (2), and one end of the heat sealing belt (4) is connected to the conveying mechanism; the front and rear lower sides of the fixed plate (2) are each fixedly connected to A U-shaped plate (5) is connected; several spring columns (6) are fixedly connected to each U-shaped plate (5); a heating plate (7) is fixedly connected to all the spring columns (6) in front, and another heating plate (7) is fixedly connected to all the spring columns (6) in the back, and the heating plate (7) is in contact with the inner side of the heat sealing strip (4); several ventilation plates (8) are fixedly connected to the fixed plate (2); several connecting plates (9) are provided on each ventilation plate (8), and the interior of the connecting plate (9) is hollow; a through groove (91) is opened on each connecting plate (9).

2. The continuous heat sealing machine according to claim 1, characterized in that, It also includes a connecting rod (10), an impeller (11), a first wheel (12), a connecting strip (13), an L-shaped plate (14), an elastic element (15), a second wheel (16), and a scraper (17); each ventilation plate (8) is rotatably connected to a connecting rod (10) in the middle; each connecting rod (10) is fixedly connected to several impellers (11) on its left side; each connecting rod (10) is fixedly connected to a first wheel (12) on its right side, and the first wheel (12) and the connecting rod (10) are eccentrically connected; several connecting strips (13) are slidably connected to the right side of the fixed plate (2). Several L-shaped plates (14) are fixedly connected to the lower right side of the fixing plate (2), and the L-shaped plates (14) are slidably connected to the connecting strips (13); an elastic element (15) is fixedly connected to the upper part of each connecting strip (13), and one end of the elastic element (15) is fixedly connected to the fixing plate (2); a second wheel (16) is fixedly connected to the middle left side of each connecting strip (13), and the second wheel (16) cooperates with the first wheel (12); a scraper (17) for scraping off the film residue on the heat sealing tape (4) is fixedly connected to the lower side of each connecting strip (13).

3. A continuous heat sealing machine according to claim 2, characterized in that, The scraper (17) is set as a right triangle.

4. A continuous heat sealing machine according to any one of claims 2-3, characterized in that, It also includes bristles (18); each scraper (17) has at least twenty bristles (18) fixedly connected to its left side in a matrix arrangement.

5. A continuous heat sealing machine according to claim 4, characterized in that, It also includes a connecting pipe (19) and an air outlet plate (20); each connecting plate (9) has a connecting pipe (19) on its right side; each connecting pipe (19) has an air outlet plate (20) at one end.

6. A continuous heat sealing machine according to claim 5, characterized in that, The conveying mechanism includes a first conveyor belt (21) and a second conveyor belt (22); the front and rear parts of the frame (1) are each connected to a first conveyor belt (21); the lower left side of the fixed plate (2) is connected to several second conveyor belts (22), and one end of the second conveyor belt (22) is connected to the frame (1).

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