Pneumatic film roll switching structure

Abstract

The utility model relates to the technical field of film felts of packaging machines, and discloses a pneumatic film roll switching structure. The pneumatic film roll switching structure comprises a film rolling structure assembly, a film ironing device is installed at the upper end of the film rolling structure assembly, an automatic replacement assembly is installed at the upper end of the film rolling structure assembly, a tensioning air cylinder is installed at the upper end of the automatic replacement assembly, and a connecting block is installed at the front end of the tensioning air cylinder; a contact head is installed at the front end of the connecting block, the lower end of the automatic replacement assembly is connected with a control part assembly, a part structure is installed at the upper end of the control part assembly, an electromagnetic valve is installed on the left side of the part structure, and a pressure reducing valve is installed on the right side of the electromagnetic valve; the device has the advantages that the problems that a film roll is tensioned and loosened due to the fact that a film felt of a current packaging machine is tensioned by hand-cranking a lead screw by an operator, hands are injured when the force is too large during replacement, and the film roll is easy to loosen when the force is too small are effectively solved, and the technical problems are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of packaging machine film felts, in particular to a pneumatic switching film roll structure. Background Art

[0002] The membrane felts used in packaging machines are all mechanical and can only be tightened or loosened by manually cranking a screw rod. While eliminating potential safety hazards and improving efficiency, the membrane felts are transformed into automatic membrane expansion and automatic switching. Currently, the membrane felts of packaging machines rely on operators to manually crank a screw rod to tighten and loosen the film roll. Excessive force may cause hand injuries, while too little force may easily loosen the film roll, causing poor packaging and machine shutdown, reducing production efficiency. Therefore, a pneumatic film roll switching structure is proposed.

[0003] The existing Chinese utility model patent with reference announcement number: CN210456799U discloses a film changing machine capable of automatically changing films, including a bracket, a first connecting shaft is horizontally arranged on the upper part of the bracket, a starting motor is arranged on one side of the first connecting shaft, a first turntable is fixedly arranged on one side of the first connecting shaft close to the starting motor, and a second turntable is detachably connected on the other side, a plurality of second connecting shafts are arranged in an annular manner between the first turntable and the second turntable, connecting plates are fixedly arranged at both ends of the second connecting shaft, a first rotating shaft and a third connecting shaft are arranged between the connecting plates, an electric heating plate is arranged at the lower end of the third connecting shaft, and the bracket is also connected to a tension adjusting device, which contacts the first rotating shaft when the first connecting shaft rotates, so that the packaging film joint on the first rotating shaft is adhered to the original packaging film; automatic film changing without stopping is realized, packaging efficiency is improved, and wrinkles are not generated during the film changing process through the tension adjusting device.

[0004] Based on the search of the above patents and in combination with the equipment in the prior art, it was found that the membrane felts supporting the packaging machine equipment are all mechanical. The current packaging machine membrane felts rely on the operator to manually crank the screw to tighten and loosen the film roll, which may cause hand injuries if too much force is used during replacement. If the force is too small, the film roll is easy to loosen, and it is difficult to stop the machine when changing the film, thereby reducing the overall production efficiency. The existence of these problems affects the use of the device. Utility Model Content

[0005] 1. Technical issues to be solved

[0006] In view of the deficiencies in the prior art, the utility model provides a pneumatic film roll switching structure, which has the advantages of effectively preventing the current packaging machine film felt from relying on the operator's hand-cranked screw to tighten and loosen the film roll, which may cause hand injuries when excessive force is used during replacement, and the film roll is easily loosened when the force is too small, thereby solving the above-mentioned technical problems.

[0007] Technical Solution

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a pneumatic switching film roll structure, comprising a film roll structure component, automatic replacement components for pneumatically replacing the upper film roll are installed on both sides of the upper end of the film roll structure component, and a control component component for controlling the parts in the automatic replacement component is installed at the lower end of the automatic replacement component;

[0009] A film hot-drying device is installed at the upper end of the film roll structural assembly, and the film hot-drying device is convenient for cutting the film roll;

[0010] A tensioning cylinder is installed at the upper end of the automatic replacement component, and a connecting block is installed at the front end of the tensioning cylinder. A contact head is installed at the front end of the connecting block. The tensioning cylinder tightens and loosens the film roll.

[0011] A component structure is installed at the upper end of the control component assembly, a solenoid valve is installed on the left side of the component structure, and a pressure reducing valve is installed on the right side of the solenoid valve. The pressure reducing valve controls the tightening pressure to be between 1.5 and 2 bar.

[0012] As a preferred technical solution of the present invention, a first film roll is installed at the upper end of the roll membrane structure assembly, and a second film roll is installed on the right side of the first film roll, a connecting rod is installed inside the second film roll, and a bracket is installed at the lower end of the connecting rod, and a combining plate is installed at the upper end of the bracket, and the bracket is used in conjunction with the front end combining plate to facilitate the installation of the upper structure.

[0013] As a preferred technical solution of the utility model, a connection block is installed on the upper end of the automatic replacement component, and a circuit is installed on the upper end of the connection block, and the connection block is connected to the circuit to facilitate starting the device.

[0014] As a preferred technical solution of the utility model, an electric board is installed at the upper end of the control component assembly, and a mounting plate is installed at the lower end of the electric board. A wiring harness is installed at the upper end of the electric board, and the wiring harness connects the devices.

[0015] As a preferred technical solution of the utility model, the automatic replacement component is installed at the front end of the combining plate in the roll film structure component, and the control component component is installed at the lower end of the tensioning cylinder in the automatic replacement component.

[0016] As a preferred technical solution of the present utility model, a heating structure is installed inside the film hot stamping device, and the film hot stamping device is installed between the first film roll and the second film roll.

[0017] As a preferred technical solution of the utility model, the tensioning cylinder is installed on the upper end of the combining plate, and the tensioning cylinder is connected to the connecting rod, and the contact head is connected to the solenoid valve.

[0018] As a preferred technical solution of the utility model, the upper end of the solenoid valve is connected to the first film roll and the second film roll respectively, and the pressure reducing valve is connected to the tensioning cylinder to control the tensioning pressure of the tensioning cylinder to 1.5-2 bar.

[0019] Compared with the prior art, the utility model provides a pneumatic switching film roll structure with the following features:

[0020] Beneficial effects:

[0021] 1. The utility model arranges an automatic replacement component and a control component component. A tensioning cylinder is installed in the automatic replacement component. The tensioning cylinder is connected to a connecting rod in a film roll structure component. The pressure of the tensioning cylinder is controlled at 1.5-2 bar through the combination of the tensioning cylinder and the pressure reducing valve. The film felt is switched by the solenoid valve for tensioning and relaxing. After the relaxation is completed, the old film and the new film at the upper ends of the first film roll and the second film roll are connected together. After the connection, the old film is cut by the film hotsetting device to complete the replacement. The film felt is changed from the original manual tensioning mode to the cylinder tensioning mode. After the film felt replaces the film roll, the film hotsetting connection is completed and the film felt is directly tightened and switched to quickly complete the conversion production, effectively preventing the current packaging machine film felt from relying on the operator to manually tighten and loosen the film roll, resulting in hand injuries when excessive force is used during replacement, and the film roll is easily loosened when the force is too small, and it is difficult to stop the machine when changing the film, thereby reducing the overall production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0023] Figure 2 This is a schematic diagram of the structural roll membrane structure assembly of the utility model;

[0024] Figure 3 This is a schematic diagram of the automatic replacement components of the utility model structure;

[0025] Figure 4 This is a schematic diagram of the structural control component assembly of the utility model;

[0026] Among them: 1. Film roll structure assembly; 101. First film roll; 102. Second film roll; 103. Connecting rod; 104. Bracket; 105. Combination plate; 106. Film hot stamping device; 2. Automatic replacement assembly; 201. Tensioning cylinder; 202. Connecting block; 203. Contact head; 204. Connecting block; 205. Circuit; 3. Control component assembly; 301. Electric board; 302. Mounting plate; 303. Wiring harness; 304. Part structure; 305. Solenoid valve; 306. Pressure reducing valve. DETAILED DESCRIPTION

[0027] The following is a further detailed description of the implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0028] In the description of the present invention, unless otherwise specified, "multiple" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third" and the like are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0029] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] See also Figure 1 - Figure 4 In the present embodiment, a pneumatic switching film roll structure comprises: a film roll structure component 1, a film hotter 106 is installed on the upper end of the film roll structure component 1, an automatic replacement component 2 is installed on the upper end of the film roll structure component 1, a tensioning cylinder 201 is installed on the upper end of the automatic replacement component 2, and a connecting block 202 is installed at the front end of the tensioning cylinder 201, a contact head 203 is installed at the front end of the connecting block 202, a control component component 3 is connected and installed at the lower end of the automatic replacement component 2, a part structure 304 is installed on the upper end of the control component component 3, a solenoid valve 305 is installed on the left side of the part structure 304, and a pressure reducing valve 306 is installed on the right side of the solenoid valve 305, the automatic replacement component 2 is installed at the front end of the combining plate 105 in the film roll structure component 1, and the control component component 3 is installed at the lower end of the tensioning cylinder 201 in the automatic replacement component 2.

[0031] Through the above structure, the roll film structure component 1 is convenient for installing the upper roll film and for subsequent use of the overall device. The automatic replacement component 2 is combined with the control component component 3 to facilitate pneumatic replacement of the upper roll film.

[0032] See also Figure 1 - Figure 4A first film roll 101 is installed at the upper end of the film roll structure assembly 1, and a second film roll 102 is installed on the right side of the first film roll 101, a connecting rod 103 is installed inside the second film roll 102, and a bracket 104 is installed at the lower end of the connecting rod 103, a combining plate 105 is installed at the upper end of the bracket 104, a heating structure is installed inside the film hotter 106, and the film hotter 106 is installed between the first film roll 101 and the second film roll 102.

[0033] Through the above structure: by installing the first film roll 101 and the second film roll 102, it is convenient to replace them later, the connecting rod 103 is convenient to fix the film roll, the bracket 104 is used in combination with the front end connecting plate 105 to facilitate the installation of the upper structure, and the film hotming device 106 is convenient to cut the mold roll.

[0034] See also Figure 1 - Figure 4 A connecting block 204 is installed at the upper end of the automatic replacement component 2, and a circuit 205 is installed at the upper end of the connecting block 204. The tensioning cylinder 201 is installed at the upper end of the combining plate 105, and the tensioning cylinder 201 is connected to the connecting rod 103, and the contact head 203 is connected to the solenoid valve 305.

[0035] Through the above structure: the film roll is tightened and relaxed by the tensioning cylinder 201, the connecting block 202 connects the tensioning cylinder 201 with the contact head 203, the contact head 203 is convenient for connecting the solenoid valve 305, and the connecting block 204 connects the line 205 to start the device.

[0036] See also Figure 1 - Figure 4 An electric board 301 is installed at the upper end of the control component assembly 3, and a mounting plate 302 is installed at the lower end of the electric board 301. A wiring harness 303 is installed at the upper end of the electric board 301. The upper end of the solenoid valve 305 is respectively connected to the first film roll 101 and the second film roll 102. The pressure reducing valve 306 is connected to the tensioning cylinder 201 to control the tensioning pressure of the tensioning cylinder 201 at 1.5 to 2 bar.

[0037] Through the above structure: the installation of the electric board 301 provides power for the whole, the installation plate 302 connects the electric board 301, the wiring harness 303 connects the devices, the part structure 304 installs related parts inside, the solenoid valve 305 controls the tensioning block of the membrane felt to tighten and relax the membrane roll, and the pressure reducing valve 306 controls the tensioning pressure at 1.5~2bar.

[0038] When in use, first, in order to switch the film roll quickly and safely, the film felt is changed from the original manual to the cylinder tensioning mode. When replacing the film roll, the pressure reducing valve 306 at the lower end of the device is started through the terminal. The pressure reducing valve 306 is used in combination with the solenoid valve 305, and is connected to the connecting block 202 through the contact head 203. The connecting block 202 is connected to the tensioning cylinder 201, and the pressure at the upper end of the tensioning cylinder 201 is controlled at 1.5-2bar. The solenoid valve 305 is used to switch the film felt for tensioning and relaxing, and the connecting rod 103 inside the film roll is relaxed. After the relaxation is completed, the connecting rod 103 is driven to rotate, and the old film and the new film at the upper ends of the first film roll 101 and the second film roll 102 are connected together. After the connection, the film hotting device 106 is started, and the old film is cut and replaced by the film hotting device 106. After the film hotting is completed, the solenoid valve 305 automatically tightens the film roll and switches to using the film felt, so as to quickly complete the conversion production.

[0039] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A pneumatic film-switching roll structure, characterized in that: The invention comprises a film rolling structure component (1), a film hot-rolling device (106) is installed on the upper end of the film rolling structure component (1), an automatic replacement component (2) is installed on the upper end of the film rolling structure component (1), a tensioning cylinder (201) is installed on the upper end of the automatic replacement component (2), a connecting block (202) is installed on the front end of the tensioning cylinder (201), a contact head (203) is installed on the front end of the connecting block (202), a control component component (3) is connected and installed on the lower end of the automatic replacement component (2), a part structure (304) is installed on the upper end of the control component component (3), a solenoid valve (305) is installed on the left side of the part structure (304), and a pressure reducing valve (306) is installed on the right side of the solenoid valve (305).

2. The pneumatic switching film roll structure according to claim 1, characterized in that: A first film roll (101) is installed at the upper end of the roll film structure assembly (1), and a second film roll (102) is installed on the right side of the first film roll (101), a connecting rod (103) is installed inside the second film roll (102), and a bracket (104) is installed at the lower end of the connecting rod (103), and a connecting plate (105) is installed at the upper end of the bracket (104).

3. The pneumatic switching film roll structure according to claim 1, characterized in that: A connection block (204) is installed at the upper end of the automatic replacement component (2), and a circuit (205) is installed at the upper end of the connection block (204).

4. The pneumatic switching film roll structure according to claim 1, characterized in that: An electric board (301) is installed at the upper end of the control component assembly (3), a mounting plate (302) is installed at the lower end of the electric board (301), and a wiring harness (303) is installed at the upper end of the electric board (301).

5. The pneumatic switching film roll structure according to claim 1, characterized in that: The automatic replacement component (2) is installed at the front end of the combining plate (105) in the film roll structure component (1), and the control component component (3) is installed at the lower end of the tensioning cylinder (201) in the automatic replacement component (2).

6. The pneumatic switching film roll structure according to claim 2, characterized in that: A heating structure is installed inside the film hot stamping device (106), and the film hot stamping device (106) is installed between the first film roll (101) and the second film roll (102).

7. The pneumatic switching film roll structure according to claim 3, characterized in that: The tensioning cylinder (201) is installed on the upper end of the combining plate (105), and the tensioning cylinder (201) is connected to the connecting rod (103), and the contact head (203) is connected to the electromagnetic valve (305).

8. The pneumatic switching film roll structure according to claim 4, characterized in that: The upper end of the solenoid valve (305) is respectively connected to the first film roll (101) and the second film roll (102), and the pressure reducing valve (306) is connected to the tensioning cylinder (201) to control the tensioning pressure of the tensioning cylinder (201) to 1.5-2 bar.

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