Bag opening assembly, bag opening process and hosiery machine

Abstract

The application provides a bag opening assembly, a bag opening process and a hosiery machine. The bag opening assembly comprises a mounting plate, wherein the mounting plate is provided with an air suction hole and an air blowing hole. The packaging bag is placed on the mounting plate and covers the air suction hole and the air blowing hole. The air suction hole tightly sucks one side of the bag opening of the packaging bag against the mounting plate. The air blowing hole blows the other side of the bag opening of the packaging bag away from the mounting plate to the direction away from the mounting plate, so as to open the bag opening of the packaging bag. In summary, the bag opening assembly of the application can automatically open the bag opening of the packaging bag. Therefore, the hosiery speed and efficiency of the hosiery machine adopting the bag opening assembly of the application are greatly improved compared with the prior art, the hosiery cost is significantly reduced, and the enterprise benefit is improved.

Description

Technical Field

[0001] This invention relates to the field of technical sock packaging, and in particular to a bag opening component, a bag opening process, and a sock wrapping machine. Background Technology

[0002] After processes such as knitting, sewing, turning, shaping, and packaging, socks are circulated in the market as finished products. Packaging, as the final and crucial step in the sock manufacturing process, not only enhances the socks' appearance and added value but also protects them and facilitates transportation and storage. Currently, most sock manufacturers rely heavily on manual packaging, resulting in long working hours, high intensity, low efficiency, and packaging quality depending primarily on manual experience. This makes it difficult to control product quality and leads to a decline in overall product quality. Due to rising labor costs, the labor costs of sock manufacturing enterprises, which are mainly labor-intensive, have also increased. At the same time, the production environment and labor intensity of sock packaging have led to labor shortages, making it impossible for sock manufacturers to meet market demand. As an improvement, some sock packaging has been automated, but most current packaging machinery can only automate the steps of feeding socks, picking up bags, and picking up socks. For the most important and difficult step in the sock packaging process, the bag opening process, manual opening is still used. That is, workers open the bag opening delivered by the bag picking component, then the sock feeding component feeds the socks into the opened bag, and finally the sock picking component removes the bag containing the socks and seals it.

[0003] It is evident that manual bag opening is a major reason why the efficiency of sock packaging cannot be improved. Summary of the Invention

[0004] This invention designs a bag-opening component, a bag-opening process, and a sock-wrapping machine to automatically open the bag opening, thus automating the entire sock-wrapping process, significantly improving the speed and efficiency of sock wrapping, and significantly reducing the cost of sock wrapping.

[0005] To address the aforementioned problems, this invention discloses a bag opening assembly for opening the mouth of a packaging bag. The assembly includes a mounting plate with an air suction hole and an air blowing hole. The packaging bag is placed on the mounting plate, covering the air suction hole and the air blowing hole. The air suction hole draws air in, tightly holding the bag mouth against the mounting plate, while the air blowing hole blows air outwards, moving the bag mouth away from the mounting plate and thus opening the bag mouth.

[0006] Furthermore, the mounting plate is equipped with a rotating device and a pair of baffles. The rotating device drives the baffles to rotate and extend into the packaging bag, opening the bag opening.

[0007] Furthermore, the mounting plate is provided with a pressure rod and a thrust device. The thrust device pushes the pressure rod to move and extend into the packaging bag, pressing the bag opening against the side of the mounting plate.

[0008] Furthermore, the mounting plate is provided with a top rod and a second thrust device. The second thrust device drives the top rod to move and push the bag opening away from the mounting plate in a direction away from the mounting plate.

[0009] Furthermore, the mounting plate is provided with a slider, and the air blowing hole is located on the slider.

[0010] Furthermore, the mounting plate is provided with a recess, the air intake hole is located on the bottom surface of the recess, and the opening of the packaging bag is placed inside the recess.

[0011] Furthermore, the bottom of the pit is a slope, and one end of the slope is connected to the mounting plate at the opening of the pit.

[0012] A sock-packing machine includes a bag-taking component, a sock-feeding component, a sock-retrieving component, and a bag-opening component of any one of the aforementioned components. The bag-taking component delivers a packaging bag to the bag-opening component, the bag-opening component opens the opening of the packaging bag, the sock-feeding component feeds socks into the open packaging bag, and the sock-retrieving component removes the packaging bag containing the socks from the bag-opening component.

[0013] Furthermore, the sock-packing machine also includes a conveying assembly, on which the socks are placed on a conveyor belt. The sock-feeding assembly picks up the socks from the conveyor belt and feeds them into a packaging bag with its opening open.

[0014] A bag-opening process, wherein the bag-opening process is applied to the aforementioned sock-wrapping machine, the bag-opening process comprising:

[0015] Open the suction hole and firmly suction the side of the packaging bag that is against the mounting plate;

[0016] Open the air vent and blow air into the side of the packaging bag facing away from the mounting plate, causing the bag opening to open.

[0017] In summary, the bag opening component of this invention enables the automatic opening of the packaging bag. Therefore, the sock-wrapping machine using the bag opening component of this invention significantly improves the speed and efficiency of sock wrapping compared to the prior art, and also significantly reduces the cost of sock wrapping, which helps to improve enterprise efficiency. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the sock-wrapping machine described in this invention. Figure 1 ;

[0019] Figure 2 for Figure 1 Enlarged view of part A in the image;

[0020] Figure 3 This is a schematic diagram of the structure of the sock-wrapping machine described in this invention. Figure 2 ;

[0021] Figure 4 for Figure 3 Enlarged view of part B in the image;

[0022] Figure 5 This is a schematic diagram of the structure of the sock-wrapping machine described in this invention. Figure 3 ;

[0023] Figure 6 for Figure 5 Enlarged view of section C in the image.

[0024] Explanation of reference numerals in the attached figures:

[0025] 1. Sock delivery assembly; 11. Translation device one; 12. Lifting device one; 13. Clamping bar;

[0026] 2. Conveyor belt;

[0027] 3. Socks;

[0028] 4. Bag opening assembly; 40. Baffle; 41. Mounting plate; 42. Recess; 43. Suction hole; 44. Pressure rod; 45. Top rod; 46. Slider; 47. Air blowing hole; 48. Rotating device; 49. Thrust device II;

[0029] 5. Bag-retrieving assembly; 51. Translation device two; 52. Gripper;

[0030] 6. Sock-retrieving assembly; 61. Translation device three; 62. Mounting frame; 63. Lower clamping arm; 64. Lifting device two; 65. Upper clamping arm;

[0031] 7. Packaging bags;

[0032] 81. First slide groove; 82. Second slide groove; 83. Third slide groove; 84. Fourth slide groove;

[0033] 9. Thrust device three;

[0034] 10. Thrust device one. Detailed Implementation

[0035] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0036] like Figure 1 , Figure 3 , Figure 5As shown, a sock-wrapping machine of the present invention includes a bag-taking component 5, a sock-feeding component 1, a sock-taking component 6, and a bag-opening component 4. During operation, the bag-taking component 5 first delivers the packaging bag 7 to the bag-opening component 4, then the bag-opening component 4 opens the opening of the packaging bag 7, then the sock-feeding component 1 feeds the socks 3 into the open packaging bag 7, and finally the sock-taking component 6 removes the packaging bag 7 containing the socks 3 from the bag-opening component 4 and seals it.

[0037] In this embodiment, as Figure 4 and Figure 6 As shown, the bag opening assembly 4 includes a mounting plate 41, which has an air suction hole 43 and an air blowing hole 47. The packaging bag 7 is placed on the mounting plate 41 and covers the air suction hole 43 and the air blowing hole 47. The air suction hole 43 draws air in, causing the opening of the packaging bag 7 to be pressed against the side of the mounting plate 41 (i.e., Figure 4 The lower surface of the packaging bag 7 is tightly sucked in, and the air blowing hole 47 blows air to push the opening of the packaging bag 7 away from the side of the mounting plate 41 (that is... Figure 4 The upper surface of the packaging bag 7 is blown away from the mounting plate 41 (i.e., blown upwards), causing the opening of the packaging bag 7 to open.

[0038] In this embodiment, the gas in the suction port 43 and the blowing port 47 is supplied by an external gas source. Those skilled in the art know that the suction port 43 needs to be connected to a suction pump through an air pipe, and the blowing port 47 needs to be connected to a blowing pump through an air pipe. Of course, in other embodiments, the blowing port 47 can also be directly connected to a gas source, and then the blowing port 47 is controlled by a control valve to blow air. By controlling the suction port 43 and the blowing port 47 to work in sequence, the bag opening of the packaging bag 7 can be opened. As for how to control the suction port 43 to suck air and the blowing port 47 to blow air, different control methods are corresponding to different gas supply methods. However, since these gas supply methods and gas supply control methods are common knowledge, they will not be described in detail here.

[0039] In this embodiment, as Figure 4 and Figure 6 As shown, furthermore, the mounting plate 41 is provided with a rotating device 48 and a pair of baffles 40. The rotating device 48 drives the baffles 40 to rotate and extend into the packaging bag 7, thus opening the bag opening. Figure 6 As shown, the rotating device 48 is mounted on the lower surface of the mounting plate 41, as... Figure 4 As shown, the baffle 40 is located on the upper surface of the mounting plate 41, and one end of the baffle 40 is connected to the rotating device 48. The rotating device 48 drives the other end of the baffle 40 to rotate around the rotating device 48, thereby rotating the other end of the baffle 40 into the packaging bag 7 with the bag opening open, so as to further open the bag opening of the packaging bag 7. Moreover, after the baffle 40 opens the bag opening of the packaging bag 7, the air blowing hole 47 can stop blowing air, which helps to save air source.

[0040] In this embodiment, the rotating device 48 can be any of an electric motor, a starter motor, a hydraulic motor, or the like.

[0041] In this embodiment, as Figure 4 and Figure 6 As shown, furthermore, the mounting plate 41 is provided with a pressure rod 44 and a thrust device 10. The thrust device 10 pushes the pressure rod 44 to move and extend into the packaging bag 7, pressing the bag opening of the packaging bag 7 against the side of the mounting plate 41, as shown. Figure 6 As shown, the lower surface of the mounting plate 41 is provided with a third sliding groove 83 for the pressure rod 44 to slide. The thrust device 10 is installed on the lower surface of the mounting plate 41. The pressure rod 44 is an L-shaped rod, and its lower end is connected to the thrust device 10. Furthermore, in order to facilitate the opening of the packaging bag 7, such as... Figure 4 and Figure 6 As shown, the mounting plate 41 has a recess 42, and the suction hole 43 is located on the bottom surface of the recess 42. The opening of the packaging bag 7 is placed inside the recess 42. The bottom of the recess 42 is a slope, and one end of the slope is connected to the mounting plate 41 at the opening of the recess 42. The upper end of the pressure rod 44 extends from the side wall of the recess 42, thus placing the bag opening on the lower surface of the packaging bag 7 (with the bottom surface of the recess 42 as shown in the figure). Figure 4 (For example) After being adsorbed by the air inlet 43 onto the bottom surface of the pit 42, the head of the upper end of the pressure rod 44 extends into the pit 42 and presses against the inclined surface, thereby pressing the lower surface of the packaging bag 7 tightly onto the inclined surface and preventing the lower surface of the packaging bag 7 from rising when the air inlet 47 blows air.

[0042] In this embodiment, the thrust device 10 can be any type of drive, such as a linear motor, a cylinder, or a hydraulic cylinder.

[0043] In this embodiment, as Figure 4 and Figure 6 As shown, furthermore, the mounting plate 41 is provided with a push rod 45 and a thrust device 49, as... Figure 6 As shown, the thrust device 49 is mounted on the lower surface of the mounting plate 41, as... Figure 4 As shown, the push rod 45 extends from the upper surface of the mounting plate 41 under the push of the second thrust device 49. Since the upper surface of the bag opening of the packaging bag 7 is directly above the push rod 45, the second thrust device 49 can move the push rod 45 to push the bag opening of the packaging bag 7 away from the side of the mounting plate 41 (i.e., Figure 4 The upper surface of the inner packaging bag 7) is directed away from the mounting plate 41 (i.e. Figure 4 The top rod 45 will pre-open the opening of the packaging bag 7 to a certain degree when the air blowing hole 47 blows air, which helps to shorten the blowing time of the air blowing hole 47 and save air source.

[0044] In this embodiment, the thrust device 49 can be any type of drive, such as a linear motor, a cylinder, or a hydraulic cylinder.

[0045] In this embodiment, further, such as Figure 4 and Figure 6 As shown, the mounting plate 41 is provided with a second sliding groove 82, in which a slider 46 is slidably mounted. The air blowing hole 47 is provided on the slider 46. One end of the second sliding groove 82 communicates with the recess 42. Figure 4 As shown, the upper surface of the slider 46 is not higher than the upper surface of the mounting plate 41, such as... Figure 6 As shown, a thrust device 39 is installed on the lower surface of the mounting plate 41. The thrust device 39 pushes the slider 46 to slide in the second slide groove 82. During operation, when air needs to be blown through the air hole 47, the thrust device 39 pushes the slider 46 to move to one end of the second slide groove 82 near the recess 42, so that the upper surface of the packaging bag 7 (with) Figure 4 (Taking this as an example) After the baffle 40 opens the bag opening of the packaging bag 7, the slider 46 returns to its original position, and the air blowing hole 47 stops blowing air. This design helps to smoothly open the bag opening of the packaging bag 7.

[0046] In this embodiment, the thrust device 9 can be any type of drive, such as a linear motor, a cylinder, or a hydraulic cylinder.

[0047] In this embodiment, as Figure 3 and Figure 4 As shown, the bag-grabbing assembly 5 includes a bag-grabbing device and a second translation device 51. The bag-grabbing device is used to pick up and release the packaging bag 7. The bag-grabbing device can be any tool capable of holding the packaging bag 7, such as a gripper 52 or a suction cup. In this embodiment, the bag-grabbing device picks up the gripper 52. Preferably, the gripper 52 is a pneumatic gripper 52. The second translation device 51 is used to deliver the packaging bag 7 picked up by the bag-grabbing device to the opening station of the bag-opening assembly 4. After being released at the opening station, the packaging bag 7 falls onto the mounting plate 41 and covers the suction hole 43 and the blowing hole 47. Figures 3-5 As shown, the mounting plate 41 is provided with a first sliding groove 81 for the gripper 52 to move. The second translation device 51 is installed on the lower surface of the mounting plate 41. The second translation device 51 pushes the gripper 52 to slide along the first sliding groove 81 to grip the packaging bag 7. The packaging bag 7 is provided by a bag making machine. The packaged bag 7 produced by the bag making machine is placed... Figure 3 and Figure 4 The location of the solid line packaging bag 7 is in Figure 3 In the image, the arrow indicates the direction in which the bag-making machine moves the packaging bag 7 onto the mounting plate 41. The gripper 52 slides to one end of the first chute 81 to grip the packaging bag 7. Then, the translation device 2 51 drives the gripper 52 to reset. After resetting, the packaging bag 7 is also sent to... Figure 4The dotted line indicates the location of the packaging bag 7. Then, the gripper 52 releases its clamping grip on the packaging bag 7, and the opening assembly 4 then opens the packaging bag 7. Figure 4 It can be seen that the opening of the dotted line packaging bag 7 falls into the recess 42 and covers the blowing hole 47 and the suction hole 43. Therefore, the location of the dotted line packaging bag 7 is the opening station of the bag opening component 4.

[0048] In this embodiment, the translation device 51 can be any type of drive, such as a linear motor, a cylinder, or a hydraulic cylinder.

[0049] In this embodiment, the sock-feeding assembly 1 includes a sock-retrieving device and a translation device 11. The sock-retrieving device is used to pick up and release socks 3, and the translation device 11 is used to feed the socks 3 picked up by the sock-retrieving device into the open packaging bag 7. Figure 1 and Figure 3 As shown, the sock remover includes two vertically arranged lifting devices 12. Each lifting device 12 has a clamping rod 13 installed at its lower end. By controlling the lifting device 12 to move the two clamping rods 13 closer or further apart, the socks 3 can be clamped or released. After the sock remover clamps the socks 3, the translation device 11 moves the sock remover until the socks 3 enter the packaging bag 7 with the opening. Then the sock remover releases the clamp on the socks 3, and the translation device 11 moves the sock remover back to its original position.

[0050] In this embodiment, the sock-wrapping machine further includes a conveying assembly, wherein the socks 3 are placed on the conveyor belt 2 of the conveying assembly, such as... Figure 1 and Figure 3 As shown, during operation, when the conveyor belt 2 delivers the socks 3 between the clamping rod 13 and the bag opening assembly 4, the conveyor belt 2 pauses its movement. After the clamping rod 13 removes the socks 3 from the conveyor belt 2 and places them into the open packaging bag 7 before returning to its original position, the conveyor belt 2 continues to move. The clamping rod 13 then waits to clamp the next pair of socks 3. The direction of movement of the conveyor belt 2 is as follows: Figure 1 As shown by the arrow in the image.

[0051] In this embodiment, the lifting device 12 can be driven by any of the following methods: linear motor, cylinder, hydraulic cylinder, etc.

[0052] In this embodiment, as Figure 1 , Figure 2 and Figure 5 As shown, the sock-retrieving assembly 6 includes a sock-retrieving device 3 and a translation device 3 61. The sock-retrieving device 3 is used to pick up the packaging bag 7 containing socks 3, and the translation device 3 61 is used to move the sock-retrieving device 3 away from the bag-opening assembly 4 and into the bag-sealing process, as shown. Figure 2 and Figure 5As shown, the sock remover has a lower clamping arm 63 and an upper clamping arm 65. The lower clamping arm 63 is fixedly mounted on a mounting frame 62, which is connected to a translation device 61. The upper clamping arm 65 is fixedly mounted on a lifting device 64, which is also fixedly mounted on the mounting frame 62. By moving the upper clamping arm 65 up and down via the lifting device 64, the socks 3 in the packaging bag 7 can be clamped or released. Figure 5 As shown, the mounting plate 41 is provided with a fourth sliding groove 84, and the lower clamping arm 63 is disposed in the fourth sliding groove 84. The upper surface of the lower clamping arm 63 is not higher than the upper surface of the mounting plate 41 (within). Figure 2 For example, after the packaging bag 7 is fed into the opening station of the bag opening component 4 by the bag picking component 5, the lower clamping arm 63 is located directly below the packaging bag 7, such as... Figure 2 As shown in the dotted packaging bag 7, after the socks 3 are fed into the packaging bag 7 by the sock feeding component 1, the lifting device 2 64 pushes the upper clamping arm 65 down to clamp the socks 3 and the packaging bag 7. Then the translation device 3 61 drives the sock taker 3 to leave the bag taker component 5 and enter the next step of sealing the packaging bag 7.

[0053] In this embodiment, the lifting device 2 64 and the translation device 3 61 can both be driven by any of the following methods: linear motor, cylinder, hydraulic cylinder, etc.

[0054] Furthermore, the present invention also discloses a bag-opening process, which is applied to the aforementioned sock-wrapping machine, and the bag-opening process includes:

[0055] Open the suction hole 43 and firmly suction the side of the packaging bag 7 that is against the mounting plate 41;

[0056] Open the air hole 47 and blow air into the side of the packaging bag 7 away from the mounting plate 41 in a direction away from the mounting plate 41, so that the opening of the packaging bag 7 opens.

[0057] In this embodiment, after opening the suction hole 43, the pressure rod 44 is first inserted into the recess 42 to press the opening of the packaging bag 7 against the side of the mounting plate 41. Then, the suction hole 43 stops sucking air. Next, the top rod 45 is lifted to lift the opening of the packaging bag 7 away from the mounting plate 41, causing the bag opening to open. Then, the slider 46 moves to directly below the opening of the packaging bag 7, and the blowing hole 47 starts blowing air to further open the bag opening. At the same time, the top rod 45 descends and no longer extends from the upper surface of the mounting plate 41. Then, the baffle 40 rotates into the bag opening, causing the bag opening to be stretched open. Then, the blowing hole 47 stops blowing air, the slider 46 returns to its original position, and the clamping rod 13 sends the sock 3 into the packaging bag 7. Then, the pressure rod 44 releases the pressure on the packaging bag 7, the baffle 40 rotates back to its original position, and the sock taking assembly 6 takes away the sock 3 along with the packaging bag 7.

[0058] While the present invention has been disclosed above, it is not limited thereto. In the description of this specification, references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Any person skilled in the art can make various modifications and alterations without departing from the spirit and scope of the present invention; therefore, the scope of protection of the present invention should be determined by the scope defined in the claims.

Claims

1. A bag opening assembly for opening the opening of a packaging bag (7), characterized in that, The system includes a mounting plate (41) with an air intake hole (43) and an air blowing hole (47). The packaging bag (7) is placed on the mounting plate (41) and covers the air intake hole (43) and the air blowing hole (47). The side of the packaging bag (7) facing away from the mounting plate (41) is longer than the side of the bag opening that is against the mounting plate (41). The air intake hole (43) draws in air and tightly sucks in the side of the packaging bag (7) that is against the mounting plate (41). The air blowing hole (47) blows air and moves the side of the packaging bag (7) facing away from the mounting plate (41) away from the mounting plate (41), causing the bag opening of the packaging bag (7) to open. The mounting plate (41) is provided with a pressure rod (44) and a thrust device (10). The thrust device (10) pushes the pressure rod (44) to move and extend into the packaging bag (7) and presses the bag opening of the packaging bag (7) against the side of the mounting plate (41). The mounting plate (41) is provided with a recess (42). The air suction hole (43) is located on the bottom surface of the recess (42). The bag opening of the packaging bag (7) is placed in the recess (42). The bottom of the recess (42) is a slope. One end of the slope is connected to the mounting plate (41) at the opening of the recess (42). The upper end of the pressure rod (44) extends from the side wall of the recess (42).

2. The bag opening assembly according to claim 1, characterized in that, The mounting plate (41) is provided with a rotating device (48) and a pair of baffles (40). The rotating device (48) drives the baffles (40) to rotate and extend into the packaging bag (7) and open the bag opening.

3. The bag-opening assembly according to claim 1, characterized in that, The mounting plate (41) is provided with a top rod (45) and a second thrust device (49). The second thrust device (49) drives the top rod (45) to move and push the bag opening of the packaging bag (7) away from the mounting plate (41) to move away from the mounting plate (41).

4. The bag-opening assembly according to claim 1, characterized in that, The mounting plate (41) is provided with a slider (46), and the air blowing hole (47) is provided on the slider (46).

5. A sock-wrapping machine, characterized in that, The package includes a bag-retrieving component (5), a sock-feeding component (1), a sock-retrieving component (6), and a bag-opening component (4) according to any one of claims 1-4. The bag-retrieving component (5) delivers the packaging bag (7) to the bag-opening component (4), the bag-opening component (4) opens the opening of the packaging bag (7), the sock-feeding component (1) feeds the socks (3) into the packaging bag (7) with the opening open, and the sock-retrieving component (6) removes the packaging bag (7) containing the socks (3) from the bag-opening component (4).

6. The sock-wrapping machine according to claim 5, characterized in that, The sock-packing machine also includes a conveying assembly, on which the socks (3) are placed on the conveyor belt (2) of the conveying assembly. The sock-feeding assembly (1) picks up the socks (3) from the conveyor belt (2) and feeds them into the packaging bag (7) with the opening of the bag.

7. A bag-opening process, characterized in that, The bag-opening process is applied to the hosiery-making machine of claim 5 or 6, and the bag-opening process includes: Open the suction hole (43) and firmly suction the side of the packaging bag (7) that is against the mounting plate (41); Open the air hole (47) and blow the bag opening of the packaging bag (7) away from the mounting plate (41) in a direction away from the mounting plate (41) to open the bag opening of the packaging bag (7).

Images