Diaphragm supply device for bag making machine

Abstract

The present invention discloses a diaphragm supply device for a bag-making machine, comprising a frame, a material roller, a heat seal surface, a plane, a first pulling roller, a mounting plate, a first driving mechanism, a fixing mechanism, and a pressing mechanism. The material roller is pivotally connected to the frame for winding the diaphragm. The fixing mechanism receives the diaphragm drawn from the material roller and fixes the received diaphragm on the plane. The portion of the diaphragm between the material roller and the fixing mechanism forms a covering section for applying to a lithium battery electrode. The first pulling roller is mounted on the mounting plate. The first driving mechanism drives the mounting plate to move so that the first pulling roller, under the linkage of the mounting plate, pulls the covering section to directly above the heat seal surface. The pressing mechanism presses the covering section when the covering section is directly above the heat seal surface to apply the covering section to the lithium battery electrode. The present invention replaces manual application of the diaphragm to the lithium battery electrode by cooperating with the first pulling roller, the first driving mechanism, the fixing mechanism, and the pressing mechanism, thereby reducing labor intensity.

Description

Technical Field

[0001] The present invention relates to a diaphragm supply device, in particular to a diaphragm supply device for a bag making machine. Background Art

[0002] At present, when a bag-making machine makes electrode bags for lithium battery electrodes, a layer of diaphragm passes horizontally through the heat seal cover, and the lithium battery electrode (except the electrode ear part) is placed on the diaphragm inside the heat seal cover. Another layer of diaphragm is then used to cover the lithium battery electrode, and then the electrode bag is formed after heat sealing and cutting. However, in the above process, the diaphragm is usually covered on the lithium battery electrode manually, which is labor-intensive. Summary of the Invention

[0003] In order to overcome the shortcomings of the prior art, the purpose of the present invention is to provide a diaphragm supply device for a bag making machine, which replaces manual lamination of the diaphragm on the lithium battery electrode through the cooperation of a first traction roller, a first drive mechanism, a fixing mechanism and a pressing mechanism, thereby reducing labor intensity.

[0004] The purpose of the present invention is achieved by adopting the following technical solutions:

[0005] The film supply device of a bag making machine comprises a frame, a material roller, a heat sealing surface, a plane, a first traction roller, a mounting plate, a first driving mechanism, a fixing mechanism and a pressing mechanism; the heat sealing surface is used for placing lithium battery electrodes; the heat sealing surface and the plane are arranged in sequence along a first direction, and the plane and the material roller are located on the same side of the heat sealing surface; the material roller is pivotally connected to the frame for winding the diaphragm; the fixing mechanism is used to receive the diaphragm led out from the material roller and fix the received diaphragm to the plane; the portion of the diaphragm located between the material roller and the fixing mechanism is formed into a covering section for covering the lithium battery electrode; the first traction roller is mounted on the mounting plate; the first driving mechanism is used to drive the mounting plate to move in a second direction opposite to the first direction, so that the first traction roller, under the linkage of the mounting plate, pulls the covering section to just above the heat sealing surface; the pressing mechanism is used to press the covering section when the covering section is just above the heat sealing surface so that the covering section is covered with the lithium battery electrode.

[0006] Furthermore, a second traction roller is installed on the mounting plate; the first driving mechanism is also used to drive the mounting plate to move along the first direction, so that the second traction roller pulls the covering section to a position away from the top of the thermal sealing surface under the linkage of the mounting plate.

[0007] Furthermore, the second traction roller and the first traction roller are arranged from top to bottom.

[0008] Furthermore, the diaphragm supply device of the bag making machine also includes a second driving mechanism, and the second driving mechanism is used to drive the material roller to rotate.

[0009] Furthermore, the fixing mechanism includes a first lifting drive structure, a working platform and a pressure plate; the upper surface of the working platform is formed as the plane; the pressure plate is located above the plane and cooperates with the plane to press the diaphragm; the first lifting drive structure is used to drive the pressure plate to move up and down relative to the plane.

[0010] Furthermore, the first lifting drive structure includes a lifting cylinder, and a telescopic rod of the lifting cylinder is fixedly connected to the pressing plate.

[0011] Furthermore, the plane is flush with the heat sealing surface; the laminating mechanism includes a laminating roller and a second lifting drive structure; the laminating roller is installed on the mounting plate and is arranged in sequence with the first traction roller in the second direction; the laminating roller is used to push the diaphragm downward; the second lifting drive structure is installed on the mounting plate and is used to drive the laminating roller to rise and fall.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] The present invention adopts a material roller to wind the diaphragm, and a fixing mechanism fixes the diaphragm drawn out from the material roller on one side of the heat sealing surface, and cooperates with the first driving mechanism to drive the mounting plate and the first traction roller to pull the covering section of the diaphragm to the top of the heat sealing surface. Then, under the action of the pressing mechanism, the covering section is bonded to the lithium battery electrode, thereby realizing the covering of the diaphragm on the lithium battery electrode. The above process replaces manual operation and reduces labor intensity. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic structural diagram of a diaphragm supply device of a bag making machine according to the present invention;

[0015] Figure 2 This is the second structural diagram of the membrane supply device of the bag making machine of the present invention (excluding the frame);

[0016] Figure 3 Schematic diagram of the structure of the first traction roller, the second traction roller and the pressing mechanism of the present invention;

[0017] Figure 4 This is a schematic structural diagram of the heat seal cover and fixing mechanism of the present invention;

[0018] In the figure: 10, frame; 20, material roller; 30, heat sealing surface; 40, plane; 50, first traction roller; 60, mounting plate; 70, first driving mechanism; 80, fixing mechanism; 81, first lifting driving structure; 82, working platform; 83, pressing plate; 90, pressing mechanism; 91, pressing roller; 92, second lifting driving structure; 100, second traction roller; 110, diaphragm; 111, coating section. DETAILED DESCRIPTION

[0019] The present invention will be further described below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0020] like Figure 1-4 The membrane supply device of the bag making machine shown in the figure comprises a frame 10, a material roller 20, a heat sealing surface 30, a plane 40, a first traction roller 50, a mounting plate 60, a first driving mechanism 70, a fixing mechanism 80 and a pressing mechanism 90; the heat sealing surface 30 and the plane 40 are arranged along the Figure 1 The first direction indicated by arrow A is arranged in sequence; the heat sealing surface 30 is used for placing the lithium battery electrode; the material roller 20 is pivotally connected to the frame 10 and is used for winding the diaphragm 110; the fixing mechanism 80 is used to receive the diaphragm 110 drawn from the material roller 20 and fix the received diaphragm 110 in the plane 40; the portion of the diaphragm 110 located between the material roller 20 and the fixing mechanism 80 is formed as a covering section 111 for covering the lithium battery electrode; the first traction roller 50 is mounted on the mounting plate 60; the first driving mechanism 70 is used to drive the mounting plate 60 to move in a second direction opposite to the first direction (such as Figure 1 The first traction roller 50 is linked with the mounting plate 60 to pull the covering section 111 to the top of the thermal sealing surface 30; the pressing mechanism 90 is used to press the covering section 111 when the covering section 111 is directly above the thermal sealing surface 30 so that the covering section 111 is fitted to the lithium battery electrode.

[0021] On the basis of the above structure, when in use, the diaphragm 110 is wound on the material roller 20, and the diaphragm 110 is received by the fixing mechanism 80 after being drawn out from the material roller 20. The fixing mechanism 80 then presses the received diaphragm 110 tightly into the plane 40. In this way, the covering section 111 of the diaphragm 110 between the material roller 20 and the fixing mechanism 80 is on one side of the heat sealing surface 30, and one end of the covering section is fixed by the fixing mechanism 80. Therefore, under the drive of the first driving mechanism 70, the mounting plate 60 moves along the direction as shown in FIG. Figure 1When moving in the second direction indicated by the middle arrow B, the first traction roller 50 can pull the covering section 111 to the top of the thermal sealing surface 30. At this time, the battery electrode is under the covering section 111. Then, in conjunction with the pressing mechanism 90, the covering section 111 can be bonded to the lithium battery electrode, that is, the diaphragm 110 is bonded to the lithium battery electrode. The above process replaces manual operation and reduces labor intensity.

[0022] The first driving mechanism 70 may be a linear motor, a cylinder, or a structure in which a lead screw and a lead screw nut cooperate.

[0023] After the diaphragm 110 is attached to the lithium battery electrode and hot-melt-cut to form an electrode bag under external operation, when the next lithium battery electrode needs to be transferred to the heat sealing surface 30 for the next bag making, the diaphragm 110 needs to be kept away from the heating station. Therefore, in this embodiment, a second traction roller 100 is further installed on the mounting plate 60; the first driving mechanism 70 is also used to drive the mounting plate 60 to move in the first direction, so that the second traction roller 100 pulls the covering section 111 to a position away from the top of the heat sealing surface 30 under the linkage of the mounting plate 60; when the first driving mechanism 70 drives the mounting plate 60 to move in the first direction, the first traction roller 50 releases the traction on the diaphragm 110 under the linkage of the mounting plate 60, and then the second traction roller 100 pulls the diaphragm 110 in the first direction under the linkage of the mounting plate 60, so that the covering section 111 can be pulled to a position away from the top of the heat sealing surface 30.

[0024] Specifically, the second pulling roller 100 and the first pulling roller 50 are arranged from top to bottom.

[0025] In order to ensure that the diaphragm 110 is in a tensioned state during the process of pulling the diaphragm 110, and thus the diaphragm 110 is evenly covered on the lithium battery electrode, preferably, the diaphragm supply device of the bag making machine also includes a second drive mechanism, and the second drive mechanism is used to drive the material roller 20 to rotate; in this way, the covering section 111 is first put in a tensioned state, and then the speed at which the second drive mechanism drives the material roller 20 to rotate can be controlled according to the driving speed of the first drive mechanism 70, and then the speed at which the material roller 20 releases the diaphragm 110 can be controlled, so that the release length of the diaphragm 110 per unit time and the distance the diaphragm 110 is pulled are kept relatively consistent, ensuring that the covering section 111 is in a tensioned state.

[0026] The second driving mechanism mentioned above may be a rotary motor, a rotary hydraulic cylinder or a hollow rotary platform.

[0027] Specifically, the fixing mechanism 80 includes a first lifting drive structure 81, a working platform 82 and a pressure plate 83; the upper surface of the working platform 82 is formed as a plane 40; the pressure plate 83 is located above the plane 40 and cooperates with the plane 40 to press the diaphragm 110; the first lifting drive structure 81 is used to drive the pressure plate 83 to move up and down relative to the plane 40; in this way, the diaphragm 110 passes between the working platform 82 and the pressure plate 83, and the first lifting drive structure 81 drives the pressure plate 83 to move downward, and then the working platform 82 and the pressure plate 83 can cooperate to fix the diaphragm 110.

[0028] More specifically, the first lifting drive structure 81 includes a lifting cylinder, and the telescopic rod of the lifting cylinder is fixedly connected to the pressing plate 83; the first lifting drive structure 81 can also be a linear motor, etc.

[0029] 4. The hot sealing surface 30 is provided with a plurality of sealing rollers 91 and a plurality of sealing rollers 92, each of which is provided with a plurality of sealing rollers 91 and a plurality of sealing rollers 92. The hot sealing surface 30 is provided with a plurality of sealing rollers 91 and a plurality of sealing rollers 92. The hot sealing surface 30 is provided with a plurality of sealing rollers 91 and a plurality of sealing rollers 92. Figure 1 Move the position shown to Figure 2 ), and then the second lifting drive structure 92 drives the pressing roller 91 to move downward to push the covering section 111, and makes the lower surface of the covering section 111 of the diaphragm 110 flush with or lower than the upper surface of the electrode piece, thereby achieving the bonding between the covering section 111 and the lithium battery electrode piece.

[0030] The second lifting drive structure 92 can be an existing cylinder, linear motor, etc.

[0031] The above embodiments are only preferred embodiments of the present invention and cannot be used to limit the scope of protection of the present invention. Any non-substantial changes and replacements made by technicians in this field on the basis of the present invention fall within the scope of protection required by the present invention.

Claims

1. A diaphragm supply device for a bag making machine, characterized in that: The machine comprises a frame, a material roller, a heat sealing surface, a plane, a first traction roller, a mounting plate, a first driving mechanism, a fixing mechanism and a pressing mechanism; the heat sealing surface is used for placing lithium battery pole pieces; the heat sealing surface and the plane are arranged in sequence along a first direction, and the plane and the material roller are located on the same side of the heat sealing surface; the material roller is pivotally connected to the frame for winding a diaphragm; the fixing mechanism is used to receive the diaphragm drawn out from the material roller and fix the received diaphragm to the plane; the portion of the diaphragm located between the material roller and the fixing mechanism is formed as a pasting section for pasting on the lithium battery pole piece; the first traction roller is mounted on the mounting plate; the first driving mechanism is used to drive the mounting plate to move in a second direction opposite to the first direction, so that the first traction roller, under the linkage of the mounting plate, draws the pasting section to just above the heat sealing surface; The pressing mechanism is used to press the covering section when the covering section is directly above the heat seal surface so that the covering section is fitted to the lithium battery electrode; The fixing mechanism includes a first lifting drive structure, a working platform and a pressing plate; the upper surface of the working platform is formed into the plane; the pressing plate is located above the plane and cooperates with the plane to press the diaphragm; the first lifting drive structure is used to drive the pressing plate to move up and down relative to the plane; The diaphragm supply device of the bag making machine also includes a second driving mechanism, which is used to drive the material roller to rotate; after the covering section is in a tensioned state, the speed at which the second driving mechanism drives the material roller to rotate is controlled according to the driving speed of the first driving mechanism, thereby controlling the speed at which the material roller releases the diaphragm.

2. The diaphragm supply device for a bag making machine according to claim 1, characterized in that: A second traction roller is also installed on the mounting plate; the first driving mechanism is also used to drive the mounting plate to move along the first direction, so that the second traction roller pulls the covering section to a position away from the top of the heat sealing surface under the linkage of the mounting plate.

3. The diaphragm supply device for a bag making machine according to claim 2, wherein: The second traction roller and the first traction roller are arranged from top to bottom.

4. The diaphragm supply device for a bag making machine according to claim 1, wherein: The first lifting drive structure includes a lifting cylinder, and the telescopic rod of the lifting cylinder is fixedly connected to the pressing plate.

5. The diaphragm supply device for a bag making machine according to any one of claims 1 to 4, characterized in that: The plane is flush with the heat sealing surface; the laminating mechanism includes a laminating roller and a second lifting drive structure; the laminating roller is mounted on the mounting plate and is arranged in sequence with the first traction roller in the second direction; the laminating roller is used to push the diaphragm downward; the second lifting drive structure is mounted on the mounting plate and is used to drive the laminating roller to rise and fall.

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