Glue spraying type bag making machine

Abstract

The utility model relates to a glue spraying type three-edge sealing bag making machine which can ensure that icons on an upper layer of paper and a lower layer of paper are perfectly aligned. The glue spraying type bag making machine comprises a machine frame, an upper-layer paper feeding mechanism, a lower-layer paper feeding mechanism, a longitudinal glue spraying mechanism, a transverse glue spraying mechanism and an upper and lower paper compounding mechanism, and the upper and lower paper compounding mechanism comprises a compounding roller set. The benchmarking traction mechanism comprises a benchmarking traction roller group and a benchmarking traction power source; a floating roller is arranged below the benchmarking traction roller set, the floating roller can be installed on the machine frame in an up-down lifting mode, an upper guide roller is arranged above the front side of the floating roller, and a lower guide roller is arranged below the front side of the floating roller; after entering the benchmarking traction roller set, paper of the upper-layer paper feeding mechanism sequentially bypasses the floating roller, the upper guide roller and the lower guide roller and then enters the composite roller set. According to the bag making machine, paper can be rapidly subjected to benchmarking, and the strict requirements for product quality and appearance are met.

Description

Technical Field

[0001] The utility model relates to a bag making machine, in particular to a glue spraying three-side sealing bag making machine. Background Art

[0002] In the packaging industry, glue-jet three-side-seal bag-making machines are highly efficient and automated production equipment widely used in the production of various paper packaging bags. These machines utilize a sophisticated mechanical structure and control system to glue, align, and seal two sheets of paper (or film) together, ultimately creating a three-side-sealed bag. This bag-making method not only improves production efficiency but also conserves packaging materials and is environmentally friendly. However, with increasing market demand and rising consumer expectations for product appearance, many packaging bags are now being printed with exquisite logos, patterns, or brand logos to attract consumers and enhance product value. In this context, ensuring precise alignment of the logos on the top and bottom layers of the bag has become a critical step in the bag-making process. Currently, mainstream glue-jet three-side-seal bag-making machines on the market rely on positional adjustments at the source of the paper roll when processing paper with logos or patterns. This adjustment typically involves adjusting the paper roll feed speed, tension control, and the initial position of the paper to ensure proper alignment of the logos during the bag-making process. However, this approach has significant limitations: Adjustment complexity: Since adjustments must begin at the source of the paper roll, it involves precise setting and repeated debugging of multiple parameters, making the operation not only cumbersome but also requiring high professional skills. Lack of flexibility: If the paper material shifts or deforms slightly during the bag-making process, the original adjustment settings may not be able to compensate in time, resulting in reduced icon alignment accuracy. Limited efficiency: Frequent adjustments not only increase production preparation time but may also affect the continuous operation capacity of the entire machine, thereby reducing production efficiency. Summary of the Invention

[0003] In view of the deficiencies in the existing technology, the utility model innovatively provides a spray-type three-side sealing bag making machine which can quickly and accurately adjust the position of paper materials to ensure that the icons on the upper and lower layers of paper materials are perfectly aligned.

[0004] This glue spraying bag making machine includes a frame, an upper paper feeding mechanism, a lower paper feeding mechanism, a longitudinal glue spraying mechanism, a transverse glue spraying mechanism and an upper and lower paper compounding mechanism, the upper and lower paper compounding mechanism includes a compounding roller group, and is characterized in that: a marking traction mechanism is provided above the upper and lower paper compounding mechanism, the marking traction mechanism includes a marking traction roller group and a marking traction power source; a floating roller is provided below the marking traction roller group, the floating roller can be installed on the frame up and down, an upper guide roller is provided above the front side of the floating roller, and a lower guide roller is provided below the front side of the floating roller; after the paper of the upper paper feeding mechanism enters the marking traction roller group, it bypasses the floating roller, the upper guide roller and the lower guide roller in sequence, and then enters the compounding roller group.

[0005] The frame is provided with a floating guide hole extending up and down, the roller shaft of the floating roller is located in the floating guide hole, a vertical rack is provided on one side of the floating guide hole, both ends of the floating roller are connected with gears, and the gears are engaged with the vertical rack.

[0006] The horizontal glue spraying mechanism includes a horizontal glue spraying head and a horizontal glue spraying seat. The horizontal glue spraying head is installed on the horizontal glue spraying seat. A first crossbeam is installed on the frame. A first horizontal guide rail is installed on the first crossbeam. A first slide is slidably provided on the first horizontal guide rail. A first vertical guide rail is provided on the first slide. The horizontal glue spraying seat is slidably provided on the first vertical guide rail. A rotatable first adjusting screw is installed on the first slide. A first nut is connected to the horizontal glue spraying seat. The first adjusting screw is threadedly connected to the first nut.

[0007] The longitudinal glue spraying mechanism includes a longitudinal glue spraying head and a longitudinal glue spraying seat, the longitudinal glue spraying head is installed on the longitudinal glue spraying seat, a second cross beam is installed on the frame, a second horizontal guide rail is installed on the second cross beam, and a second slide is slidably provided on the second horizontal guide rail; a longitudinal driving mechanism is installed on the second cross beam, and the longitudinal driving mechanism includes a synchronous belt, a synchronous pulley and a longitudinal power source, the synchronous belt is wound around the synchronous pulley, the longitudinal power source is transmission-connected with the synchronous pulley, and the synchronous belt is connected to the second slide; a second vertical guide rail is provided on the second slide, the longitudinal glue spraying seat is slidably provided on the second vertical guide rail, a rotatable second adjusting screw is installed on the second slide, a second nut is connected to the longitudinal glue spraying seat, and the second adjusting screw is threadedly connected to the second nut.

[0008] The front end of the frame is provided with a traction and cutting mechanism, and a release paper feeding mechanism is further provided between the traction and cutting mechanism and the upper and lower paper compounding mechanisms. The release paper coming out of the release paper feeding mechanism enters the compound roller group.

[0009] A longitudinal cooling mechanism is provided between the traction and cutting mechanism and the upper and lower paper combining mechanism, and the longitudinal cooling mechanism comprises a longitudinal cooling plate arranged longitudinally.

[0010] A transverse cooling mechanism is provided between the traction and cutting mechanism and the upper and lower paper combining mechanism, and the transverse cooling mechanism comprises a transverse cooling plate arranged transversely.

[0011] A heat sealing mechanism is provided in front of the upper and lower paper composite mechanism, and the heat sealing mechanism includes a heat sealing plate.

[0012] A color mark sensor is provided on the path between the upper paper feeding mechanism and the alignment traction mechanism, and the color mark sensor is electrically connected to the alignment traction power source.

[0013] According to the utility model, a glue-spraying three-side sealing bag-making machine is provided, which can quickly and flexibly align the paper by arranging a marking traction mechanism above the upper and lower paper composite mechanisms, so as to meet the strict requirements of the modern packaging industry on product quality and appearance. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural diagram of the utility model;

[0015] Figure 2 It is a cross-sectional view of the utility model;

[0016] Figure 3 for Figure 2 A partial enlarged view of point A in the middle;

[0017] Figure 4 The working principle diagram of the benchmark traction mechanism;

[0018] Figure 5 It is a structural diagram of the longitudinal glue spraying mechanism;

[0019] Figure 6 It is a structural diagram of the horizontal glue spraying mechanism;

[0020] Figure 7 Schematic diagram of glue spraying for continuous paper bags. DETAILED DESCRIPTION

[0021] like Figure 1 As shown, this glue spraying bag making machine includes a frame, an upper paper feeding mechanism 1, a lower paper feeding mechanism 2, a longitudinal glue spraying mechanism 3, a transverse glue spraying mechanism 4 and an upper and lower paper compounding mechanism 6. The upper paper feeding mechanism 1 includes an upper paper reel (the paper mentioned in the present invention includes two kinds of materials, paper and plastic film), which is used to provide the upper paper A1; the lower paper feeding mechanism 2 includes a lower paper reel, which is used to provide the lower paper A2; the longitudinal glue spraying mechanism 3 is used to longitudinally spray glue on the lower paper A2 (such as Figure 7and the transverse glue spraying mechanism 4 is used to spray glue laterally on the lower paper A2 (such as Figure 7 The upper and lower paper compounding mechanism 6 is used to bond the upper paper A1 and the lower paper A2 together.

[0022] like Figure 2 and Figure 3 As shown, the upper and lower paper compounding mechanism 6 includes a compound roller group 60. In order to align the icons on the upper paper A1 and the lower paper A2 and then feed them into the compound roller group 60, a marking traction mechanism 5 is provided above the upper and lower paper compounding mechanism 6. The marking traction mechanism 5 includes a marking traction roller group 50 and a marking traction power source. Driven by the marking traction power source, the marking traction roller group 50 pulls the upper paper forward; and a floating roller 51 is provided below the marking traction roller group 50. The floating roller 51 can be installed on the frame to be raised and lowered. An upper guide roller 52 is provided above the front side of the floating roller 51, and a lower guide roller 53 is provided below the front side of the floating roller 51. Figure 3 As shown, after the upper paper A1 of the upper paper feeding mechanism 1 enters the alignment roller assembly 50, it passes through the floating roller 51, the upper guide roller 52, and the lower guide roller 53 in sequence before entering the composite roller assembly 60. When alignment is required, the alignment roller assembly 50 pulls the upper paper A1, accelerating or decelerating it. (When alignment is not required, the alignment roller assembly 50 also pulls the upper paper A1 forward, thus advancing it.) This adjusts the position of the upper paper A1 relative to the lower paper A2, aligning the icons on the upper paper A1 with those on the lower paper A2. The presence of the floating roller 51 provides a buffer during the pulling process, preventing the upper paper A1 from being directly broken.

[0023] In order to achieve automatic benchmarking, Figure 2 As shown, a color mark sensor 11 is provided in the path between the upper paper feeding mechanism 1 and the alignment traction mechanism 5. This color mark sensor 11 is electrically connected to the alignment traction power source. When the color mark sensor 11 detects the color mark on the upper paper A1, it transmits a signal to the PLC. The PLC calculates the position difference between the icons on the upper and lower papers (using the icon on the lower paper A2 as a reference) and transmits the signal to the alignment traction power source. The alignment traction power source controls the alignment traction roller assembly 50 to accelerate or decelerate the movement of the upper paper A1, thereby achieving automatic alignment.

[0024] In order to allow the floating roller 51 to move up and down smoothly, Figure 3As shown, the frame is provided with a vertically extending floating guide hole 54. The roller shaft of the floating roller 51 is located within the floating guide hole 54 (preventing the floating roller 51 from moving left or right, allowing it to move only up and down). A vertical rack 55 is located on one side of the floating guide hole 54. Gears are connected to both ends of the floating roller 51, and these mesh with the vertical rack 55. Because both ends of the floating roller 51 are meshed with the vertical rack 55 through gears, the vertical movement of the floating roller 51 is more balanced, preventing one end from getting stuck.

[0025] like Figure 6 As shown, the horizontal glue spraying mechanism 4 includes a horizontal glue spraying head 41 and a horizontal glue spraying seat 42. The horizontal glue spraying head 41 is installed on the horizontal glue spraying seat 42. When the lower layer of paper moves forward, the horizontal glue spraying head 41 sprays glue downward, leaving horizontal glue on the lower layer of paper (such as Figure 7 (Side B in the figure). However, paper bags come in different sizes. To accommodate the gluing needs of different sizes, a first crossbeam 40 is mounted on the frame. A first horizontal guide rail 45 is mounted on the first crossbeam 40. A first slide 44 is slidably mounted on the first horizontal guide rail 45. A first vertical guide rail 43 is mounted on the first slide 44. A transverse gluing seat 42 is slidably mounted on the first vertical guide rail 43. A first rotatable adjustment screw 46 is mounted on the first slide 44. A first nut is connected to the transverse gluing seat 42, and the first adjustment screw 46 is threadedly engaged with the first nut. By moving the first slide 44 on the first horizontal guide rail 45, the horizontal gluing head 41 can be adjusted left and right. By rotating the first adjustment screw 46 to adjust the position of the transverse gluing seat 42 on the first vertical guide rail 43, the horizontal gluing head 41 can be adjusted up and down.

[0026] like Figure 5 As shown, the longitudinal glue spraying mechanism 3 includes a longitudinal glue spraying head 31 and a longitudinal glue spraying seat 32. The longitudinal glue spraying head 31 is installed on the longitudinal glue spraying seat 32. A second crossbeam 30 is installed on the frame. A second horizontal guide rail 35 is installed on the second crossbeam 30. A second slide 34 is slidably provided on the second horizontal guide rail 35. A longitudinal driving mechanism is installed on the second crossbeam 30. The longitudinal driving mechanism includes a synchronous belt 36, a synchronous pulley 37 and a longitudinal power source 38. The synchronous belt 36 is wound around the synchronous pulley 37. The longitudinal power source 38 is connected to the synchronous pulley 37 for transmission. The synchronous belt 36 is connected to the second slide 34. When the lower layer of paper stops moving intermittently, the synchronous belt 36 drives the longitudinal glue spraying seat 32 and the longitudinal glue spraying head 31 to move horizontally. At the same time, the longitudinal glue spraying head 31 sprays glue downward, thereby leaving longitudinal glue on the lower layer of paper (such as Figure 7(C edge in the figure). To adjust the vertical position of the longitudinal glue spraying head 31, a second vertical guide rail 33 is provided on the second slide 34. The longitudinal glue spraying seat 32 slides on the second vertical guide rail 33. A second rotatable adjustment screw 39 is mounted on the second slide 34. A second nut is connected to the longitudinal glue spraying seat 32, and the second adjustment screw 39 is threadedly connected to the second nut. By rotating the second adjustment screw 39, the position of the longitudinal glue spraying seat 32 on the second vertical guide rail 33 can be adjusted, thereby adjusting the vertical position of the longitudinal glue spraying head 31. By adjusting this position, the vertical position of the longitudinal glue spraying head 31 can be adjusted.

[0027] like Figure 1 As shown, a traction and cutting mechanism 10 is provided at the front end of the frame (the traction and cutting mechanism 10 includes a traction mechanism and a cutting mechanism, the traction mechanism includes a traction roller, and the cutting mechanism includes a cutting knife). A release paper feeding mechanism 7 (including a release paper reel) is provided between the traction and cutting mechanism 10 and the upper and lower paper laminating mechanisms 6. The release paper from the release paper feeding mechanism 7 enters the laminating roller group 60 and is attached to the edge of the paper bag (as shown in FIG. Figure 7 middle D side).

[0028] In order to make the glue in the longitudinal direction cool and solidify quickly, Figure 1 As shown, a longitudinal cooling mechanism 9 is provided between the traction and cutting mechanism 10 and the upper and lower paper laminating mechanism 6. The longitudinal cooling mechanism 9 includes a longitudinal cooling plate arranged longitudinally. The longitudinal cooling plate moves downward to cool the longitudinal glue (such as Figure 7 Middle C side).

[0029] In order to make the glue in the horizontal direction cool and solidify quickly, Figure 1 As shown, a transverse cooling mechanism is provided between the traction and cutting mechanism 10 and the upper and lower paper laminating mechanisms 6. The transverse cooling mechanism includes a transverse cooling plate arranged transversely. The longitudinal cooling plate moves downward to cool the longitudinal glue (such as Figure 7 Middle B side).

[0030] To ensure a more even spread of glue in the longitudinal direction, a heat sealing mechanism 8 is provided in front of the upper and lower paper laminating mechanisms 6. The heat sealing mechanism 8 includes a heat sealing plate. Before the longitudinal cooling plate cools the glue in the longitudinal direction, the heat sealing plate first heat-presses the glue in the longitudinal direction, allowing the glue to spread more evenly in the longitudinal direction, thus making the bag more firmly bonded.

Claims

1. A glue spraying bag making machine, comprising a frame, an upper paper feeding mechanism (1), a lower paper feeding mechanism (2), a longitudinal glue spraying mechanism (3), a transverse glue spraying mechanism (4), and an upper and lower paper compounding mechanism (6), wherein the upper and lower paper compounding mechanism (6) includes a compounding roller group (60), and is characterized in that: A marking traction mechanism (5) is provided above the upper and lower paper composite mechanism (6), and the marking traction mechanism (5) includes a marking traction roller group (50) and a marking traction power source; a floating roller (51) is provided below the marking traction roller group (50), and the floating roller (51) is installed on the frame so as to be able to be raised and lowered; an upper guide roller (52) is provided above the front side of the floating roller (51), and a lower guide roller (53) is provided below the front side of the floating roller (51); after the paper of the upper paper feeding mechanism (1) enters the marking traction roller group (50), it bypasses the floating roller (51), the upper guide roller (52) and the lower guide roller (53) in sequence, and then enters the composite roller group (60).

2. The glue spraying bag making machine according to claim 1, characterized in that: The frame is provided with a floating guide hole (54) extending up and down, the roller shaft of the floating roller (51) is located in the floating guide hole (54), a vertical rack (55) is provided on one side of the floating guide hole (54), and both ends of the floating roller (51) are connected to gears, and the gears are meshed with the vertical rack (55).

3. The glue spraying bag making machine according to claim 1, characterized in that: The transverse glue spraying mechanism (4) includes a transverse glue spraying head (41) and a transverse glue spraying seat (42), wherein the transverse glue spraying head (41) is mounted on the transverse glue spraying seat (42), a first crossbeam (40) is mounted on the frame, a first horizontal guide rail (45) is mounted on the first crossbeam (40), a first slide seat (44) is slidably mounted on the first horizontal guide rail (45), a first vertical guide rail (43) is mounted on the first slide seat (44), the transverse glue spraying seat (42) is slidably mounted on the first vertical guide rail (43), a rotatable first adjusting screw (46) is mounted on the first slide seat (44), a first nut is connected to the transverse glue spraying seat (42), and the first adjusting screw (46) is threadedly connected to the first nut.

4. The glue spraying bag making machine according to claim 1, characterized in that: The longitudinal glue spraying mechanism (3) includes a longitudinal glue spraying head (31) and a longitudinal glue spraying seat (32), wherein the longitudinal glue spraying head (31) is mounted on the longitudinal glue spraying seat (32), a second crossbeam (30) is mounted on the frame, a second horizontal guide rail (35) is mounted on the second crossbeam (30), and a second slide seat (34) is slidably provided on the second horizontal guide rail (35); a longitudinal driving mechanism is mounted on the second crossbeam (30), and the longitudinal driving mechanism includes a synchronous belt (36), a synchronous pulley (37) and a longitudinal power source (38), wherein ... The synchronous belt (36) is wound around the synchronous pulley (37), the longitudinal power source (38) is in transmission connection with the synchronous pulley (37), and the synchronous belt (36) is connected to the second slide (34); the second slide (34) is provided with a second vertical guide rail (33), the longitudinal glue spraying seat (32) is slidably provided on the second vertical guide rail (33), a rotatable second adjusting screw (39) is installed on the second slide (34), a second nut is connected to the longitudinal glue spraying seat (32), and the second adjusting screw (39) is threadedly connected to the second nut.

5. The glue spraying bag making machine according to claim 1, characterized in that: A traction and cutting mechanism (10) is provided at the front end of the frame, and a release paper feeding mechanism (7) is provided between the traction and cutting mechanism (10) and the upper and lower paper compounding mechanism (6). The release paper output from the release paper feeding mechanism (7) enters the compounding roller group (60).

6. The glue spraying bag making machine according to claim 5, characterized in that: A longitudinal cooling mechanism (9) is provided between the traction and cutting mechanism (10) and the upper and lower paper combining mechanism (6), and the longitudinal cooling mechanism (9) includes a longitudinal cooling plate arranged longitudinally.

7. The glue spraying bag making machine according to claim 5, characterized in that: A transverse cooling mechanism is provided between the traction and cutting mechanism (10) and the upper and lower paper combining mechanism (6), and the transverse cooling mechanism comprises a transverse cooling plate arranged transversely.

8. The glue spraying bag making machine according to claim 1, characterized in that: A heat sealing mechanism (8) is provided in front of the upper and lower paper composite mechanism (6), and the heat sealing mechanism (8) includes a heat sealing plate.

9. The glue spraying bag making machine according to claim 1, characterized in that: A color mark sensor (11) is provided on the path between the upper paper feeding mechanism (1) and the alignment traction mechanism (5), and the color mark sensor (11) is electrically connected to the alignment traction power source.

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