Drum device for making handle attached externally to flat string of paper bag

Abstract

The present invention discloses a drum device for manufacturing an externally attached handle with flat ropes for paper bags. It includes two frame wallboards as supporting members, a drum mechanism installed between the two frame wallboards, a flat rope indentation device cooperating with the drum mechanism, and a handle forming and folding plate device for folding the indented flat rope belt into a braided rope handle. The drum mechanism is provided with indentation grooves, is arranged with adsorption holes, and is provided with a finger claw mechanism. The finger claw mechanism bites and fixes the braided rope belt adsorbed on the drum mechanism and can make creases on the flat rope belt through the flat rope indentation device. The handle forming and folding plate device can fold the flat rope belt with creases into a braided rope handle. The advantages are: high degree of automation, no manual participation is required during the process, further improving production efficiency, reducing production costs, and the automated attachment means makes the attachment firm, the product consistency good, and the rejection rate low.

Description

Technical Field

[0001] The present invention relates to an auxiliary device for a paper bag machine, specifically a drum device for manufacturing an externally attached handle with a flat rope for a paper bag. Background Art

[0002] With the development of society, people's requirements for portability, environmental protection, and food safety are getting higher and higher. Therefore, the consumption of paper bags used as temporary containers for items or commodities is also increasing. Existing paper bags are generally divided into two types. One type of paper bag has no handle. After packing items or commodities, they are placed in a plastic bag. This type of paper bag is mainly suitable for holding food products to meet the requirements of food safety. However, it needs to rely on plastic bags for holding, which will cause environmental pollution problems. Another type has a woven drawstring strung on the paper bag. These paper bags are mainly suitable for holding clothing or snack products. They meet various different uses. However, in the process of processing and manufacturing these paper bags, an additional process is required to manufacture the woven drawstring and the woven drawstring also needs to be strung onto the paper bag, resulting in a significant increase in manufacturing cost and a very low production efficiency of the paper bags. In addition, in the prior art, there is also a use method of manually weaving and folding a flat rope handle and attaching the manually woven and folded flat rope handle to the surface of the paper bag. However, the existing flat rope handles are usually manually attached to the surface of the paper bag. As a result, not only is its reliability poor (due to inconsistent manual levels, the product quality consistency is poor), but also the manufacturing efficiency is very low and the production cost is still very high. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a drum device for manufacturing an externally attached handle with a flat rope for a paper bag, which has a high degree of automation, high product quality consistency, can greatly improve production efficiency, and reduce production cost.

[0004] To solve the above technical problem, the drum device for manufacturing an externally attached handle with a flat rope for a paper bag of the present invention includes two frame wallboards as support members, a drum mechanism installed between the two frame wallboards, a flat rope indentation device cooperating with the drum mechanism, and a handle forming and folding plate device for folding the indented flat rope belt into a flat rope handle. The drum mechanism is provided with an indentation groove for forming an indentation on the flat rope belt, adsorption holes arranged for adsorbing the flat rope belt, and a finger claw mechanism for biting and fixing the flat rope belt adsorbed on the drum mechanism. The finger claw mechanism bites and fixes the flat rope belt adsorbed on the drum mechanism and can crease the flat rope belt through the flat rope indentation device. The handle forming and folding plate device can fold the indented flat rope belt into a flat rope handle.

[0005] The drum mechanism includes a main shaft, a runner main body installed in the middle of the main shaft, a cam seat installed on the main shaft near the inner side of one of the frame wallboards, and a driving gear installed on the main shaft near the inner side of the other frame wallboard.

[0006] The runner body includes two drum seats, a pair of drums arranged in a 180-degree reverse symmetry on the drum seats, and two of the claw mechanisms installed on the drum seats. The two claw mechanisms cooperate with one of the drums respectively.

[0007] Each of the claw mechanisms includes a pair of swing arms installed on the drum seat through a rotating shaft, a claw seat installed at the end of the swing arm through a mounting shaft, a roller swing arm installed on one outer end of the mounting shaft, and an end spring pin installed on the other outer end face of the mounting shaft. A roller bearing is installed on the roller swing arm, and a claw is installed on the claw seat. A pair of claw cams arranged in a 180-degree symmetry are provided on the inner side of the cam seat. The roller bearing is made to cooperate with the claw cam through the roller swing arm to control the claw to bite or release.

[0008] A gas distribution rod is installed between the two drum seats. One end of the gas distribution rod is installed with a guide plate located outside one of the drum seats, and the other end of the gas distribution rod is installed with a press-fit bearing located outside the other drum seat. An installation block is installed in the middle of the gas distribution rod, and a compression spring is pressed between the installation block and one of the drum seats. Air flow channels communicating with the adsorption holes are provided on both drum seats. The gas distribution rod is provided with gas distribution holes and air release holes that cooperate with the air flow channels of the two drum seats. A press-fit cam is provided on the cam seat. By pressing the press-fit bearing against the press-fit cam, the gas distribution holes and air release holes on the gas distribution rod can selectively achieve gas distribution or air release with the air flow channels.

[0009] A fixing plate for limiting the swing arm is further provided on the outer surface of one of the drum seats. A first-end spring pin is installed on the rotating shaft, and a spring for pulling the claw to reset is arranged between the first-end spring pin and the end spring pin.

[0010] The indentation groove is installed on the drum, and the indentation groove is two angular grooves in a figure-eight shape.

[0011] Ventilation holes are provided on the main shaft, and the ventilation holes on the main shaft communicate with the air flow channels of the drum seats.

[0012] The flat rope indentation device includes a central shaft, a driven gear installed at one end of the central shaft, two tool holders installed in the middle of the shaft body, a first guide plate installed on each of the two tool holders, and a tool seat with an indentation knife installed on each of the two first guide plates. The driven gear meshes with the driving gear and can drive the central shaft to rotate.

[0013] A compression spring for cooperating with the indentation knife is arranged in the tool holder.

[0014] The handle forming folding plate device includes a long folding plate, a short folding plate, a fixing rod for installing the long folding plate and the short folding plate, and a second guide plate installed between the long folding plate and the short folding plate. A fixing block is further arranged between the long folding plate and the short folding plate. A screw rod sleeved with a compression spring is screwed on the fixing block through a nut. One end of the second guide plate is installed on the fixing rod, and the other end of the second guide plate is pressed below the fixing block by the compression spring. The position of the second guide plate can be adjusted through the nut.

[0015] The advantages of the present invention are as follows:

[0016] Through the provided drum mechanism, a flat rope indentation device cooperating with the drum mechanism, and a handle forming folding plate device for folding the indented flat rope belt into a flat rope handle, the flat rope belt can be directly folded into a flat rope handle by using this automated device, without the need to rely on manual production of the flat rope handle. The degree of automation is high. The flat rope handle produced can not only be directly transported to a paper bag machine and pasted on both outer sides of the mouth surface of the paper bag to turn the paper bag into a flat rope handled paper bag, without the need for manual participation in the process, further improving production efficiency and reducing production costs, but also the automated attachment (bonding) means makes the attachment firm, with good product consistency and low scrap rate. At the same time, using the flat rope handle formed by this device for paper bags avoids the pollution problem of traditional handleless paper bags and the problems of low manufacturing efficiency and high production cost of paper bags with drawstrings. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional structural schematic diagram of a drum device for manufacturing an externally attached flat rope handle for a paper bag according to the present invention;

[0018] Figure 2 It is a front view structural schematic diagram of the drum mechanism in the present invention;

[0019] Figure 3 It is a schematic diagram showing the up-and-down structural arrangement of a drum device for manufacturing an externally attached flat rope handle for a paper bag according to the present invention;

[0020] Figure 4 It is a three-dimensional structural schematic diagram of a drum main body in the present invention;

[0021] Figure 5 It is a side view structural schematic diagram of the drum main body in the present invention;

[0022] Figure 6 It is a schematic diagram of the air distribution structure of the drum main body in the present invention;

[0023] Figure 7 It is a sectional structural schematic diagram of the air distribution structure in the drum main body of the present invention;

[0024] Figure 8 It is a schematic diagram of the air distribution rod structure in the present invention;

[0025] Figure 9 is Figure 8 Schematic diagram of the B-B cross-sectional structure;

[0026] Figure 10 Schematic diagram of the structure of the indentation groove in the present invention;

[0027] Figure 11 Stereoscopic structure diagram of the flat rope folding knife device in the present invention;

[0028] Figure 12 Front view structure diagram of the flat rope folding plate device in the present invention;

[0029] Figure 13 Side view structure diagram of the flat rope folding plate device in the present invention;

[0030] Figure 14 Schematic diagram of the process flow of the flat rope handle forming process in the present invention. Detailed implementation manners

[0031] The following further details the drum device for making the outer-attached handle of the paper bag flat rope according to the present invention in conjunction with the accompanying drawings and specific implementation manners. Embodiment 1

[0032] As shown in the figure, the drum device for making the outer-attached handle of the paper bag flat rope in this embodiment includes two frame wallboards 103 as support members, a drum mechanism 200 installed between the two frame wallboards 103, a flat rope indentation device 300 cooperating with the drum mechanism 200, and a handle forming and folding plate device 400 for folding the indented flat rope belt 101 into a flat rope handle 102. It can be seen that the drum mechanism 200 includes a main shaft 201, a runner main body installed in the middle of the main shaft 201, and a cam seat 202 and a driving gear 203 installed on the main shaft 201. Specifically, the cam seat 202 is installed on the main shaft and close to the left side ( Figure 2 Figure 2 ​Inside the inner side of the frame wall panel 103 at the shown position, the cam seat 202 is installed on the frame wall panel 103, and the driving gear 203 is installed on the main shaft and close to the inner side of the right frame wall panel 103. Among them, the runner body includes two drum seats, a pair of drums 206 arranged in a 180-degree reverse symmetry on the drum seats, and two finger mechanisms installed on the drum seats. The two finger mechanisms are respectively matched with one of the drums. On the drum 206 of the drum mechanism 200, there is an indentation groove 207 for forming an indentation on the flat rope belt, and adsorption holes for adsorbing the flat rope belt are also arranged on the drum 206. The two finger mechanisms can bite and fix the flat rope belt adsorbed on the drum mechanism. After the flat rope belt adsorbed on the drum mechanism is bitten and fixed by the two finger mechanisms, the flat rope indentation device 300 can make a crease on the flat rope belt, and the handle forming folding plate device 400 can fold the indented flat rope belt into a flat rope handle.

[0033] Further, each finger mechanism includes a pair of swing arms 209 installed on the drum seat through a rotating shaft 210, a finger seat 212 installed at the end of the swing arm through a mounting shaft 211, a roller swing arm 213 installed at the outer end of the left side of the mounting shaft, and an end spring pin 215 installed on the outer end face ( Figure 4 in the shown direction) of the right side of the mounting shaft. As can be seen from the figure, a pull rod 208 is connected to the pair of swing arms 209 of each finger mechanism. A roller bearing 214 is installed on the roller swing arm 213, and a finger 216 that can swing with the mounting shaft 211 is installed on the finger seat 212; on the outer surface of the right drum seat, there is also a fixing plate 221 for limiting the swing arm 209. A first-end spring pin 220 is installed on the rotating shaft 210, and a spring for pulling the finger 216 to reset is arranged between the first-end spring pin 220 and the end spring pin 215; inside the cam seat 202, there are a pair of finger cams 204 arranged in a 180-degree symmetry. By rotating the runner body on the main shaft 201, the roller bearings 214 on the roller swing arms 213 rotate and respectively contact the two finger cams to control the biting or releasing of the finger 216, and bite the flat rope on the drum 206. The indentation groove 207 is installed on the drum 206, and the indentation groove 207 is designed as two angular grooves (45° spiral angle) in a figure-eight shape. By the flat rope indentation device 300, two 45° inclined grooves are pressed out on the flat rope to facilitate the forming of the flat rope. As can be seen from the figure, in this embodiment, two symmetrical indentation grooves 207, fingers and other parts are designed on the two drums 206. One rotation of the drum 206 can operate on two flat rope handles.

[0034] Between the two drum seats of the runner body, a gas distribution rod 217 is installed. One end of the gas distribution rod 217 is installed with a guide plate 218 located outside the right drum seat, and the other end of the gas distribution rod 217 is installed with a located on the left side ( Figure 6A press - fit bearing 222 is provided outside the drum seat (in the shown direction). An installation block is installed in the middle of the air distribution rod 217, and a compression spring 223 is pressed between the installation block and the drum seat on the right. Air flow channels communicating with the adsorption holes are provided on both drum seats. The air distribution rod 217 is provided with air distribution holes and air release holes that cooperate with the air flow channels of the two drum seats. A press - fit cam 219 is provided on the cam seat 202. By pressing the press - fit bearing 222 against the press - fit cam 219, the air distribution holes and air release holes on the air distribution rod 217 can selectively achieve air distribution or air release with the air flow channels. Thus, by rotating the runner main body on the main shaft 201, the press - fit bearing 222 on the roller swing arm 213 rotates. When the press - fit bearing 222 rotates to the position of the press - fit cam 219, the press - fit bearing 222 pushes the air distribution rod 217 to move under the action of the press - fit cam 219. The E - hole (air distribution hole) on the air distribution rod 217 communicates with the air flow channel on the drum seat, and the flat rope handle is sucked through the air flow channel to the adsorption hole on the drum. On the contrary, when the press - fit bearing 222 leaves the press - fit cam 219, the air distribution rod 217 resets under the action of the compression spring 223. The F - hole on the air distribution rod 217 communicates with the upper hole and the side hole on the drum seat to achieve air release, and the flat rope handle disengages from the drum 206. The air distribution rod 217 is controlled by the guide plate 218 to move linearly because the guide plate 218 is controlled by the guide post to move linearly.

[0035] In addition, vent holes are provided on the main shaft 201, and the vent holes on the main shaft 201 communicate with the air flow channels of the drum seats. As can be seen from the figure, the two vent holes designed on the outer circle of the shaft of the main shaft 201 communicate with the air flow channels of the drum seats.

[0036] Furthermore, the flat rope indentation device 300 includes a central shaft 301, a driven gear 302 installed at one end of the central shaft, two tool holders 303 installed in the middle of the shaft body, a first guide plate 305 respectively installed on the two tool holders, and a tool seat 306 with an indentation knife 307 respectively installed on the two first guide plates 305. A compression spring 304 cooperating with the indentation knife 307 is arranged in the tool holder 303. As can be seen from the figure, the central shaft 301 is installed between the two frame wallboards 103 with bearings. The driven gear 302 is installed on the central shaft 301 and meshes with the driving gear 203 to drive the central shaft 301 to rotate. The tool holder 303 is installed on the central shaft 301, the compression spring 304 is installed in the hole of the tool holder 303, the tool seat 306 is installed in the installation groove of the tool holder 303 and contacts the compression spring 304. The first guide plate 305 is installed on the tool holder 303 with screws and limits the position of the tool seat 306. The indentation knife 307 is installed on the tool seat 306 at a 45° slope. When the indentation knife 307 rotates and contacts the indentation groove 207 to press out the crease of the flat rope handle 102, the indentation knife 307 has an interference fit with the indentation groove 207, and the indentation knife 307 shrinks against the elastic force of the compression spring 304 to ensure that there is a certain pressure for indentation, but the flat rope will not be pressed and damaged, and the indentation knife 307 will not be damaged.

[0037] Furthermore, the handle forming folding plate device 400 includes a long folding plate 401, a short folding plate 404, a fixing rod 402 for installing the long folding plate 401 and the short folding plate 404, and a second guide plate installed between the long folding plate 401 and the short folding plate 404. A fixing block 403 is also provided between the long folding plate 401 and the short folding plate 404. A screw rod with a compression spring sleeved thereon by a nut is also installed on the fixing block 403. One end of the second guide plate is installed on the fixing rod 402, and the other end of the second guide plate is pressed below the fixing block by a compression spring 406. The position of the second guide plate can be adjusted by the nut. Two sets of handle forming folding plate devices 400 are provided. The two sets of handle forming folding plate devices 400 are installed behind the indentation of the drum. The flat rope indentation is in the shape of a 45° angle. The drum rotates to bring the flat rope to the handle forming folding plate device 400. The middle of the flat rope is bitten by the finger claws 216, and the crease edge is folded along the crease to form a shape. The formed handle is sucked by the suction holes of the drum and sent to the glue application and pasting place. Embodiment 2

[0038] The drum device for attaching the flat rope handle to the paper bag in this embodiment is substantially the same as that in Embodiment 1. The difference lies in that two sets of drum devices for attaching the flat rope handle to the paper bag are designed between the two frame wallboards 103, which can be defined as the upper flat rope handle manufacturing part and the lower flat rope handle manufacturing part. The two sets of drum devices for attaching the flat rope handle to the paper bag are symmetrically installed up and down, and the upper and lower flat rope handles can be manufactured respectively, achieving the purpose of attaching the flat rope handle at one time.

[0039] During use, after the flat rope is manufactured in the previous process, it is conveyed to the drum mechanism 200. The finger claws of the drum mechanism 200 bite the flat rope. When the drum rotates to the flat rope indentation device 300, the indentation knife presses into the indentation groove on the drum, pressing out a 45° eight-shaped indentation line on the flat rope. The inner side of the indentation line is bitten by the finger claws, and the outer side of the indentation line warps upward. When the warped flat rope rotates to the position of the handle forming folding plate device 400 with the drum, the flat rope with both sides warped up is guided between the long folding plate 401 and the short folding plate 404. The width between the long folding plate 401 and the short folding plate 404 is greater than or equal to the width of the flat rope. The two sides of the flat rope are folded into the shape of a handle and are sucked by the suction of the drum and sent to the pasting place.

[0040] Of course, the above description is not a limitation of the present invention, and the present invention is not limited to the above examples. Changes, modifications, additions, or substitutions made by those skilled in the art within the essence of the present invention should also fall within the protection scope of the present invention.

Claims

1. A drum device for manufacturing a handle pasted on the outside of a flat string of a paper bag, characterized in that: It includes two frame wallboards (103) as support members, a drum mechanism (200) installed between the two frame wallboards (103), a flat rope indentation device (300) cooperating with the drum mechanism (200), and a handle forming folding plate device (400) for folding the indented flat rope belt into a flat rope handle. A indentation groove (207) for forming an indentation on the flat rope belt, adsorption holes for adsorbing the flat rope belt, and a claw mechanism for clamping and fixing the flat rope belt adsorbed on the drum mechanism are arranged on the drum mechanism (200). The claw mechanism clamps and fixes the flat rope belt adsorbed on the drum mechanism, and the flat rope indentation device (300) can make a crease on the flat rope belt. The handle forming folding plate device (400) can fold the indented flat rope belt into a flat rope handle; The drum mechanism (200) includes a main shaft (201), a runner main body installed in the middle of the main shaft (201), a cam seat (202) installed on the main shaft (201) near the inner side of one of the frame wallboards (103), and a driving gear (203) installed on the main shaft (201) near the inner side of the other frame wallboard (103); The runner main body includes two drum seats, a pair of drums (206) arranged in a 180-degree reverse symmetry on the drum seats, and two claw mechanisms installed on the drum seats. The two claw mechanisms respectively cooperate with one of the drums; Each claw mechanism includes a pair of swing arms (209) installed on the drum seat through a rotating shaft (210), a claw seat (212) installed at the end of the swing arm through a mounting shaft (211), a roller swing arm (213) installed on the outer end of one side of the mounting shaft, and an end tension spring pin (215) installed on the outer end face of the other side of the mounting shaft; A gas distribution rod (217) is installed between the two drum seats. One end of the gas distribution rod (217) is installed with a guide plate (218) located outside one of the drum seats, and the other end of the gas distribution rod (217) is installed with a press-fit bearing (222) located outside the other drum seat. An installation block is installed in the middle of the gas distribution rod (217), and a compression spring (223) is pressed between the installation block and one of the drum seats. Air flow channels communicating with the adsorption holes are arranged on both drum seats. The gas distribution rod (217) is provided with gas distribution holes and air release holes cooperating with the air flow channels of the two drum seats. A press-fit cam (219) is arranged on the cam seat (202). By pressing the press-fit bearing (222) against the press-fit cam (219), the gas distribution holes and air release holes on the gas distribution rod (217) can selectively achieve gas distribution or air release with the air flow channels; A ventilation hole is arranged on the main shaft (201), and the ventilation hole on the main shaft (201) communicates with the air flow channel of the drum seat.

2. The drum device for manufacturing the externally attached handle of the flat string of the paper bag according to claim 1, wherein: A roller bearing (214) is installed on the roller swing arm (213), and a finger claw (216) is installed on the finger claw seat (212); a pair of finger claw cams (204) arranged symmetrically at 180 degrees are provided inside the cam seat (202), and the roller bearing (214) is engaged with the finger claw cam (204) through the roller swing arm (213) to control the biting or releasing of the finger claw (216).

3. The drum device for manufacturing the externally attached handle of the paper bag flat rope according to claim 1 or 2, characterized in that: On the outer surface of one of the drum seats, a fixing plate (221) for limiting the swing arm (209) is further provided. A first end spring pin (220) is installed on the rotating shaft (210), and a spring for pulling the finger claw (216) to reset is arranged between the first end spring pin (220) and the second end spring pin (215).

4. The drum device for manufacturing the externally attached handle of the flat string of the paper bag according to claim 3, wherein: The indentation groove (207) is installed on the drum (206), and the indentation groove (207) is two angular grooves in a shape of an eight character.

5. The drum device for manufacturing the externally attached handle of the flat string of the paper bag according to claim 1, 2 or 4, characterized in that: The flat rope indentation device (300) includes a central shaft (301), a driven gear (302) installed at one end of the central shaft, two tool holders (303) installed in the middle of the shaft body, a first guide plate (305) respectively installed on the two tool holders, and a tool holder (306) with an indentation knife (307) respectively installed on the two first guide plates (305). The driven gear (302) meshes with the driving gear (203) and can drive the central shaft (301) to rotate.

6. The drum device for manufacturing the externally attached handle of the paper bag flat rope, as described in claim 5, is characterized in that: A compression spring (304) cooperating with the indentation knife (307) is arranged inside the tool holder (303).

7. The drum device for manufacturing the externally attached handle of the flat string of the paper bag according to claim 6, characterized in that: The handle forming folding plate device (400) includes a long folding plate (401), a short folding plate (404), a fixing rod (402) for installing the long folding plate (401) and the short folding plate (404), and a second guide plate installed between the long folding plate (401) and the short folding plate (404). A fixing block (403) is further arranged between the long folding plate (401) and the short folding plate (404). A screw rod with a compression spring sleeved thereon by a nut is further installed on the fixing block (403). One end of the second guide plate is installed on the fixing rod (402), and the other end of the second guide plate is pressed below the fixing block by the compression spring. The position of the second guide plate can be adjusted by the nut.

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