Bag making machine with improved PE film roll changing device

Abstract

The utility model relates to the technical field of installation of winding roller rods of bag making machines, in particular to a bag making machine with an improved PE (polyethylene) film roll changing device, which comprises a bag making machine PE film winding roller placing structure. PE thin film winding roller positioning structures are symmetrically installed on the bag making machine PE thin film winding roller containing structure along the middle portion, and the two PE thin film winding roller positioning structures are the same in structure and are both connected with metal telescopic pipes. And the PE film winding roller positioning structure comprises a placement inner shaft barrel. According to the utility model, one end of the PE film winding roller is placed on the inner side of the placing inner shaft barrel of one PE film winding roller positioning structure, the other end of the PE film winding roller is placed on the inner side of the placing inner shaft barrel of the other PE film winding roller positioning structure, and after the vacuum pump is started, the vacuum pump is started to supply pressure to the metal telescopic pipe; the elastic rubber ring cylinder placed on the inner edge of the inner shaft cylinder is expanded under air pressure and makes contact with the outer wall of the PE film winding roller through the anti-skid rubber strip plates, and the PE film winding roller is stably positioned.

Description

Technical Field

[0001] The utility model relates to the technical field of bag making machine roll rod installation, in particular to a bag making machine with an improved PE film roll changing device. Background Art

[0002] At present, the packaging materials (mostly roll film) of many bag-making machines at home and abroad are installed on stainless steel rollers, through the modules on both sides, and wedged on the rollers with threads. The disassembly and assembly procedures are cumbersome, and the module on one side needs to be removed, and then the packaging materials are installed, and then the fixed module is installed and tightened. Such operations.

[0003] However, in the prior art, the roller is easily worn when it is installed, and the quick wrench is inconvenient to operate. If the operation is not rigorous, it will cause slight damage to the packaging material, which may affect the packaging material and the results of subsequent bag making. The bag is easily damaged, resulting in product seepage and leakage. It is necessary to solve the problem of being able to apply rollers of multiple specifications while facilitating stable installation.

[0004] Therefore, those skilled in the art provide a bag making machine with an improved PE film roll changing device to solve the problems raised in the above background technology. Summary of the invention

[0005] In order to solve the above technical problems, the utility model provides:

[0006] A bag making machine with an improved PE film roll changing device comprises: a PE film roll placing structure of the bag making machine; a PE film roll positioning structure is symmetrically installed on the middle of the upper edge of the PE film roll placing structure of the bag making machine, and the two PE film roll positioning structures are identical and are both connected with a metal telescopic tube; the PE film roll positioning structure comprises a placing inner shaft cylinder, and an elastic rubber ring cylinder is sealedly installed on the inner edge of the placing inner shaft cylinder, and a sealing ring shaft is sealed and rotatably installed inside the placing inner shaft cylinder.

[0007] Preferably: an air intake pipe body is provided through and sealed on the sealing ring shaft, and the air intake pipe body is sealed and connected to the metal telescopic tube.

[0008] The air inlet pipe body is provided with a solenoid valve for gas sealing.

[0009] Preferably: a load-bearing shaft frame is rotatably mounted on the outside of the inner shaft cylinder, and an adjusting screw frame is welded and fixed on the outer wall of the load-bearing shaft frame.

[0010] The inner wall of the adjusting screw frame is provided with a screw hole, and a bidirectional screw rod is provided in the screw hole for spiral transmission.

[0011] Preferably: the inner wall of the load-bearing shaft frame is annular and has an annular through groove.

[0012] The air inlet pipe body is located inside the annular through groove.

[0013] Preferably, the inner edge of the elastic rubber ring is provided with a plurality of anti-slip rubber strips.

[0014] The anti-skid rubber strip is used for the elastic rubber ring cylinder to contact the outer wall of the PE film roller after it is expanded by air pressure.

[0015] Preferably: a supporting frame is welded and fixed to the bottom end of the adjusting screw frame, and a plurality of limiting wheels are installed at the bottom of the supporting frame.

[0016] Preferably: a positioning drum is integrally fixed to one end of the inner shaft cylinder, a helical gear ring is fixedly mounted on the outer wall of the positioning drum, the helical gear ring is meshed with a helical gear, and the helical gear is connected to a synchronous motor.

[0017] The synchronous motor is fixedly assembled on the outer wall of the adjusting screw frame.

[0018] One end of the metal telescopic tube is connected to a vacuum pump;

[0019] The bag making machine PE film roll placement structure includes a placement frame, a load-bearing screw frame is fixedly installed on the top of the placement frame, a bidirectional screw rod is rotatably installed inside the load-bearing screw rod, and a bidirectional motor is connected to the middle of the bidirectional screw rod;

[0020] The adjusting screw frame is movably arranged inside the load-bearing screw frame, and the screw transmission is outside the bidirectional screw rod, and a controller is installed on the outer wall of the placing frame;

[0021] A load-bearing rail groove is provided on the bottom surface of the placement frame, and the support moving frame is movably limited inside the load-bearing rail groove through limiting wheels;

[0022] A supporting base frame is welded and fixed to the bottom end of the placing frame, and a plurality of moving wheels are installed at the bottom of the supporting base frame.

[0023] Technical effects and advantages of the utility model:

[0024] In the utility model, one end of the PE film roll is placed inside an inner shaft cylinder of a PE film roll positioning structure, and the other end of the PE film roll is placed inside an inner shaft cylinder of another PE film roll positioning structure. After starting the vacuum pump, the vacuum pump starts to supply pressure to the metal telescopic tube, and the elastic rubber ring tube at the inner edge of the inner shaft cylinder is expanded by air pressure, and contacts the outer wall of the PE film roll through the anti-skid rubber strip plate, so as to firmly position it. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a structural schematic diagram of a bag making machine with an improved PE film roll changing device provided in an embodiment of the present application;

[0026] Figure 2It is a schematic structural diagram of the front side of a bag making machine with an improved PE film roll changing device provided in an embodiment of the present application;

[0027] Figure 3 It is a structural schematic diagram of a frame placed in a bag making machine of an improved PE film roll changing device provided in an embodiment of the present application;

[0028] Figure 4 It is a structural schematic diagram of a load-bearing screw frame in a bag making machine of an improved PE film roll changing device provided in an embodiment of the present application;

[0029] Figure 5 It is a structural schematic diagram of a PE film roll positioning structure in a bag making machine with an improved PE film roll changing device provided in an embodiment of the present application;

[0030] Figure 6 It is a structural schematic diagram of point A in a bag making machine with an improved PE film roll changing device provided in an embodiment of the present application.

[0031] In the figure:

[0032] 1. PE film roll placement structure of bag making machine; 101. Placement frame; 102. Load-bearing screw frame; 103. Bidirectional motor; 104. Bidirectional screw rod; 105. Load-bearing rail groove; 106. Support chassis; 107. Moving wheel;

[0033] 2. PE film roll positioning structure; 201. load-bearing shaft frame; 202. adjusting screw frame; 203. supporting and moving frame; 204. limiting wheel; 205. placing inner shaft cylinder; 206. sealing ring shaft; 207. air intake pipe body; 208. elastic rubber ring cylinder; 209. anti-skid rubber strip; 210. annular groove; 211. positioning rotating cylinder; 212. helical gear ring; 213. helical gear; 214. synchronous motor;

[0034] 3. Metal expansion tube; 4. Vacuum pump; 5. Controller. DETAILED DESCRIPTION

[0035] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations are obvious to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific purposes. Example

[0036] See also Figures 1 to 6In this embodiment, a bag making machine with an improved PE film roll changing device is provided, comprising: a bag making machine PE film roll placement structure 1; a PE film roll positioning structure 2 is symmetrically installed on the middle of the upper edge of the bag making machine PE film roll placement structure 1, and the two PE film roll positioning structures 2 have the same structure and are both connected to a metal telescopic tube 3;

[0037] The PE film roll positioning structure 2 includes an inner shaft cylinder 205, and an elastic rubber ring cylinder 208 is installed along the inner edge of the inner shaft cylinder 205, and a sealing ring shaft 206 is installed inside the inner shaft cylinder 205 for sealing and rotation; the sealing ring shaft 206 is sealed with an air intake pipe body 207, and the air intake pipe body 207 is sealed and connected to the metal telescopic pipe 3; the air intake pipe body 207 is installed with a solenoid valve for gas sealing;

[0038] The inner shaft cylinder 205 is rotatably mounted with a load-bearing shaft frame 201, and an adjusting screw frame 202 is welded and fixed to the outer wall of the load-bearing shaft frame 201; a screw hole is provided through the inner wall of the adjusting screw frame 202, and a bidirectional screw rod 104 is provided in the screw hole for spiral transmission; the inner wall of the load-bearing shaft frame 201 is provided with an annular through groove 210;

[0039] The air inlet pipe body 207 is located inside the annular groove 210; a plurality of anti-skid rubber strips 209 are integrally provided along the inner edge of the elastic rubber ring tube 208; the anti-skid rubber strips 209 are used for the elastic rubber ring tube 208 to contact the outer wall of the PE film roll after being expanded by air pressure;

[0040] The bottom end of the adjusting screw frame 202 is welded and fixed with a support frame 203, and a plurality of limiting wheels 204 are installed at the bottom of the support frame 203; one end of the placing inner shaft cylinder 205 is integrally fixed with a positioning rotating cylinder 211, and the outer wall of the positioning rotating cylinder 211 is fixedly equipped with a helical gear ring 212, and the helical gear ring 212 is meshed with a helical gear 213, and the helical gear 213 is connected to a synchronous motor 214; the synchronous motor 214 is fixedly assembled on the outer wall of the adjusting screw frame 202; one end of the metal telescopic tube 3 is connected to a vacuum pump 4;

[0041] The bag making machine PE film roll placement structure 1 includes a placement frame 101, a load-bearing screw frame 102 is fixedly installed on the top of the placement frame 101, a bidirectional screw rod 104 is rotatably installed inside the load-bearing screw frame 102, and a bidirectional motor 103 is connected to the middle of the bidirectional screw rod 104;

[0042] The adjusting screw frame 202 is movably arranged on the inner side of the load-bearing screw frame 102, and the spiral transmission is outside the bidirectional screw rod 104, and the controller 5 is installed on the outer wall of the placement frame 101; a load-bearing rail groove 105 is opened on the bottom surface of the placement frame 101, and the supporting moving frame 203 is movably limited on the inner side of the load-bearing rail groove 105 through the limiting wheel 204; a supporting base frame 106 is welded and fixed at the bottom end of the placement frame 101, and a plurality of moving wheels 107 are installed at the bottom of the supporting base frame 106.

[0043] Working principle:

[0044] When the PE film roll for the bag making machine is placed between the two PE film roll positioning structures 2, the bidirectional motor 103 can be started according to the spacing between the PE film rolls, and the bidirectional motor 103 drives the bidirectional screw rod 104 to rotate, and the bidirectional screw rod 104 transmits the spiral transmission to the adjusting screw rack 202, so that the adjusting screw rack 202 moves along the bidirectional screw rod 104 on the inner side of the load-bearing screw frame 102, and the spacing between the two PE film roll positioning structures 2 is adjusted;

[0045] One end of the PE film roll is placed inside the inner shaft cylinder 205 of a PE film roll positioning structure 2, and the other end of the PE film roll is placed inside the inner shaft cylinder 205 of another PE film roll positioning structure 2. After the vacuum pump 4 is started, the vacuum pump 4 starts to supply pressure to the metal telescopic tube 3, and the elastic rubber ring tube 208 on the inner edge of the inner shaft cylinder 205 is expanded by air pressure, and contacts the outer wall of the PE film roll through the anti-skid rubber strip 209, so as to firmly position it.

[0046] After the vacuum pump 4 supplies air pressure, the solenoid valve of the air intake pipe body 207 is closed to control the air pressure temperature inside the inner cylinder 205. An air pressure detector is also installed in the air intake pipe body 207, and the air pressure detector is electrically connected to the controller 5.

[0047] When adjusting the self-rotation of the installed PE film roller, the synchronous motor 214 is started. After the synchronous motor 214 is started, it rotates and drives the bevel gear 213. The bevel gear 213 engages the bevel gear ring 212. The bevel gear ring 212 applies force to the positioning drum 211, and the inner shaft cylinder 205 is rotated inside the load-bearing shaft frame 201, so that the positioned PE film roller can be stably rotated and adjusted.

[0048] In the present invention, unless otherwise clearly stipulated and limited, for example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, for ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0049] Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without creative work should fall within the scope of protection of the present invention. Structures, devices and operating methods not specifically described and explained in the present invention shall be implemented according to conventional means in the field unless otherwise specified and limited.

Claims

1. A bag making machine with an improved PE film roll changing device, characterized in that: include: PE film roll placement structure for bag making machine (1); A PE film roll positioning structure (2) is symmetrically installed on the middle of the upper edge of the bag making machine PE film roll placement structure (1), and the two PE film roll positioning structures (2) have the same structure and are both connected to a metal telescopic tube (3); The PE film roll positioning structure (2) comprises an inner shaft cylinder (205) for placement, and an elastic rubber ring cylinder (208) is installed in a sealing manner on the inner edge of the inner shaft cylinder (205), and a sealing ring shaft (206) is installed in a sealing and rotatable manner inside the inner shaft cylinder (205).

2. The bag making machine with improved PE film roll changing device according to claim 1, characterized in that: An air intake pipe body (207) is provided through the sealing ring shaft (206) in a sealed manner, and the air intake pipe body (207) is sealedly connected to the metal telescopic tube (3).

3. The bag making machine with improved PE film roll changing device according to claim 1, characterized in that: A load-bearing shaft frame (201) is rotatably mounted on the outside of the inner shaft cylinder (205), and an adjusting screw frame (202) is welded and fixed to the outer wall of the load-bearing shaft frame (201).

4. The bag making machine with improved PE film roll changing device according to claim 3, characterized in that: The inner wall of the load-bearing shaft frame (201) is provided with an annular through groove (210) in an annular shape.

5. The bag making machine with improved PE film roll changing device according to claim 1, characterized in that: The inner edge of the elastic rubber ring tube (208) is integrally provided with a plurality of anti-slip rubber strips (209).

6. The bag making machine with improved PE film roll changing device according to claim 3, characterized in that: A support frame (203) is welded and fixed to the bottom end of the adjusting screw frame (202), and a plurality of limiting wheels (204) are installed at the bottom of the support frame (203).

7. The bag making machine with improved PE film roll changing device according to claim 1, characterized in that: A positioning rotating cylinder (211) is integrally fixed to one end of the inner shaft cylinder (205), and a helical gear ring (212) is fixedly mounted on the outer wall of the positioning rotating cylinder (211). The helical gear ring (212) is meshed with a helical gear (213), and the helical gear (213) is connected to a synchronous motor (214).

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