An equidistant cutting device for glass interlayer production

Abstract

The utility model provides a kind of equidistance cutting device for glass interlayer production, including rack and respectively being arranged in the winding roller and pay-off roll of rack both sides, the side of winding roller and pay-off roll is uniformly provided with guide roller, two the cutting plate of being fixedly connected on rack is provided between the guide roller, the upper portion of cutting plate is provided with the mount rack of sliding connection in the rack, the middle part of mount rack is fixedly connected with first tool holder, the both ends of mount rack are slidingly connected with two second tool holders, and cutting knife is arranged on the first tool holder and the second tool holder. The utility model provides glass interlayer production by the screw thread transmission design of bidirectional screw rod and second tool holder, cooperate first motor drive, realize two second tool holder synchronous symmetrical movement, without stopping machine can quickly adjust cutting interval, significantly reduce change time, adapt to the continuous production demand of multi-specification product, improve equipment utilization.

Description

Technical Field

[0001] This utility model relates to the field of glass film production and processing technology, specifically to an equidistant cutting device for producing glass interlayer films. Background Technology

[0002] As the core material of laminated glass, the precision of the equidistant cutting process of the interlayer directly affects the safety and consistency of the finished product. In the existing technology, the cutting of the interlayer is mostly done by fixed-spacing cutters or manually adjustable cutting devices, which achieve continuous cutting through mechanical transmission. Such devices usually rely on preset cutter spacing or manual intervention to adjust cutting parameters, which has the problem of low adjustment efficiency and is difficult to adapt to the flexible production needs of high-precision, multi-specification products.

[0003] Specifically, the adjustment of the blade holder spacing in traditional cutting devices relies on mechanical positioning or manual operation, which requires frequent machine stops to replace blades or repeated calibration when switching between different product specifications. Especially in continuous production, dynamic adjustment of blade spacing and synchronous cutting are difficult to achieve, resulting in interruption of production rhythm, increased material loss, and serious impact on production efficiency.

[0004] In view of this, an equidistant cutting device for the production of glass interlayer film is proposed. Utility Model Content

[0005] The purpose of this invention is to solve the problem of inconvenient adjustment of the spacing between the blade holders in the existing equidistant cutting device for glass interlayer production, and to provide an equidistant cutting device for glass interlayer production.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: an equidistant cutting device for producing glass interlayer film, comprising a frame and a take-up roller and an unwind roller respectively disposed on both sides of the frame, a guide roller disposed on one side of each of the take-up roller and the unwind roller, a cutting plate fixedly connected to the frame disposed between the two guide rollers, a mounting frame slidably connected to the frame disposed above the cutting plate, a first blade holder fixedly connected to the middle of the mounting frame, two second blade holders slidably connected to both ends of the mounting frame, a cutting blade disposed on both the first blade holder and the second blade holders, and a bidirectional screw disposed on the mounting frame for driving the two second blade holders to move closer or further apart from each other.

[0007] Preferably, two first sliding rods are fixedly connected to the frame, the mounting bracket is slidably connected to the two first sliding rods, and an electric push rod is fixedly connected to the frame, the extended end of the electric push rod being fixedly connected to the mounting bracket.

[0008] Preferably, a first motor for driving the bidirectional screw to rotate is fixedly connected to the mounting bracket. The threads at both ends of the bidirectional screw are arranged in opposite directions, and both ends of the bidirectional screw are connected to a sleeve by ball thread. The two sleeves are fixedly connected to two second tool holders respectively. A second sliding rod is fixedly connected to the mounting bracket, and the second sliding rod passes through the first tool holder and the second tool holder.

[0009] Preferably, the bidirectional screw has a rotating ring fixedly connected to its middle section, and the rotating ring is rotatably connected to the first tool holder.

[0010] Preferably, a drive rod is rotatably connected to the frame, a limit groove is formed on the drive rod, a limit rod is fixedly connected to the middle of each of the plurality of cutters, the limit rod is adapted to the size of the limit groove, and a second motor for driving the drive rod to rotate is fixedly connected to the frame.

[0011] Preferably, the two guide rollers are at the same height, and the height difference between the guide rollers and the cutting plate is the same as the thickness of the glass interlayer.

[0012] Preferably, the first tool holder and the second tool holder are at the same height, and the two second tool holders are at the same distance from the first tool holder in the initial state.

[0013] Compared with the prior art, this utility model has the following beneficial effects:

[0014] 1. The glass interlayer film production equidistant cutting device provided by this utility model, through the threaded transmission design of the bidirectional screw and the second tool holder, and in conjunction with the first motor drive, realizes the synchronous and symmetrical movement of the two second tool holders. The cutting spacing can be quickly adjusted without stopping the machine, which significantly reduces the changeover time, adapts to the continuous production needs of multi-specification products, and improves the equipment utilization rate.

[0015] 2. The mounting frame of the equidistant cutting device for glass interlayer production provided by this utility model achieves stable lifting and lowering through the cooperation of the electric push rod and the first sliding rod. At the same time, the matching structure of the cutter limiting rod and the drive rod limiting groove ensures that multiple cutters move synchronously during the cutting process, avoiding burrs or dimensional deviations in the cut due to skew, and ensuring the cutting accuracy of the glass interlayer and the consistency of the finished product.

[0016] 3. The height difference between the guide roller and the cutting plate of the equidistant cutting device for glass interlayer film production provided by this utility model matches the thickness of the interlayer film. Combined with the same height design of the first and second cutter holders, the material is kept under moderate tension and without excessive deformation during cutting. The composite guide structure of the bidirectional screw and the second sliding rod further reduces mechanical vibration during the adjustment process, effectively reduces material edge tearing or misalignment loss, and improves material utilization. Attached Figure Description

[0017] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:

[0018] Figure 1 This is a three-dimensional structural diagram of an embodiment of the present utility model.

[0019] Figure 2 This is another three-dimensional structural schematic diagram of an embodiment of the present utility model.

[0020] Figure 3 This is a side view schematic diagram of an embodiment of the present utility model.

[0021] Figure 4 This is a schematic diagram of the mounting bracket according to an embodiment of the present invention.

[0022] Figure 5 This is an exploded view of the first and second tool holders according to an embodiment of the present invention.

[0023] In the picture:

[0024] 1. Frame, 2. Take-up roller, 3. Unwind roller, 4. Guide roller, 5. Cutting plate, 6. First sliding rod, 7. Mounting frame, 8. First knife holder, 81. Second knife holder, 9. Cutting knife, 10. Second sliding rod, 11. Bidirectional screw, 12. Screw sleeve, 13. Rotary ring, 14. First motor, 15. Electric push rod, 16. Second motor, 17. Drive rod, 18. Limiting groove, 19. Limiting rod. Detailed Implementation

[0025] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0026] Please see Figure 1-5 .

[0027] This utility model relates to an equidistant cutting device for producing glass interlayer film, comprising a frame 1 and a take-up roller 2 and an unwind roller 3 respectively disposed on both sides of the frame 1. A guide roller 4 is disposed on one side of each of the take-up roller 2 and the unwind roller 3. A cutting plate 5 is fixedly connected to the frame 1 between the two guide rollers 4. A mounting frame 7 is slidably connected to the frame 1 above the cutting plate 5. A first blade holder 8 is fixedly connected to the middle of the mounting frame 7, and two second blade holders 81 are slidably connected to both ends of the mounting frame 7. Each of the first blade holder 8 and the second blade holder 81 is equipped with a cutting blade 9. A bidirectional screw 11 is provided on the mounting frame 7 to drive the two second blade holders 81 to move closer or further apart. Specifically, the take-up roller 2 and the unwind roller 3 are arranged on both sides of the frame 1, and the guide rollers 4 on their outer sides form a traction path for the glass interlayer film. The cutting plate 5 between the two guide rollers 4 provides a stable cutting plane. The mounting frame 7 is slidably disposed on the frame 1, with the first blade holder 8 fixed in the middle and the two second blade holders 81 driven to slide by the bidirectional screw 11 at both ends. This layout keeps the intermediate film taut throughout the transport process, preventing material shift during cutting. The symmetrical adjustment structure of the bidirectional screw 11 allows for simultaneous adjustment of the distance between the second blade holder 81 and the first blade holder 8 on both sides without stopping the machine. This not only adapts to the rapid switching of products of different specifications, but also eliminates the problem of uneven force caused by unilateral adjustment through symmetrical movement, thereby ensuring the uniformity of the cutting distance.

[0028] Secondly, two first sliding rods 6 are fixedly connected to the frame 1, and the mounting frame 7 is slidably connected to the two first sliding rods 6. An electric push rod 15 is fixedly connected to the frame 1, and the extended end of the electric push rod 15 is fixedly connected to the mounting frame 7. In other words, the two first sliding rods 6 on the frame 1 provide linear guidance for the lifting and lowering of the mounting frame 7. With the vertical drive of the electric push rod 15, the mounting frame 7 drives the cutter 9 to lift and lower stably as a whole. The combined action of the sliding rod and the push rod can avoid the blade holder deviation caused by vibration during cutting, thereby improving the flatness of the cut. At the same time, the precise stroke control of the electric push rod 15 can adjust the horizontal position of multiple cutters 9 simultaneously.

[0029] Furthermore, a first motor 14 for driving the bidirectional screw 11 to rotate is fixedly connected to the mounting bracket 7. The threads at both ends of the bidirectional screw 11 are reversed, and both ends of the bidirectional screw 11 are connected to a threaded sleeve 12 via ball bearing threads. The two threaded sleeves 12 are respectively fixedly connected to two second tool holders 81. A second sliding rod 10 is fixedly connected to the mounting bracket 7, and the second sliding rod 10 passes through the first tool holder 8 and the second tool holder 81. This arrangement ensures that when the first motor 14 drives the bidirectional screw 11 to rotate, the reversed threads at both ends are connected to the ball bearings. The screw sleeve 12 drives the two second tool holders 81 to move synchronously in opposite directions. The second sliding rod 10 passes through all the tool holders to form a lateral constraint. The transmission method of the ball screw sleeve 12 reduces the frictional resistance between the screw and the screw sleeve 12, making the adjustment process smoother and more accurate. The second sliding rod 10 ensures that the tool holder moves only along the screw axis without deflection, preventing the cutter 9 from misaligning due to angular deviation. This allows the device to achieve rapid adjustment of the tool distance while taking into account both adjustment efficiency and consistency of the cutting position through multiple guides and low-friction transmission structure.

[0030] In addition, a rotating ring 13 is fixedly connected to the middle of the bidirectional screw 11. The rotating ring 13 is rotatably connected to the first tool post 8. This arrangement is to ensure that the axial limiting function of the rotating ring 13 can prevent the bidirectional screw 11 from axially moving during high-speed adjustment, so that the movement trajectory of the two second tool posts 81 is always symmetrical to the first tool post 8, further improving the adjustment stability.

[0031] Furthermore, a drive rod 17 is rotatably connected to the frame 1, and a limiting groove 18 is formed on the drive rod 17. A limiting rod 19 is fixedly connected to the middle of each of the multiple cutters 9. The limiting rod 19 is adapted to the size of the limiting groove 18. A second motor 16 is fixedly connected to the frame 1 to drive the drive rod 17 to rotate. The drive rod 17 is driven to rotate by the second motor 16. The limiting groove 18 on its surface cooperates with the limiting rod 19 in the middle of the cutter 9, converting the rotational motion of the drive rod 17 into the vertical reciprocating cutting motion of the cutter 9. This setting eliminates the need to configure a separate drive source for each cutter 9, which simplifies the complexity of the equipment and enables the synchronous movement of multiple cutters 9 through a single power source.

[0032] Specifically, the two guide rollers 4 are at the same height, and the height difference between the guide rollers 4 and the cutting plate 5 is the same as the thickness of the glass interlayer film. This arrangement ensures that the height difference between the guide rollers 4 and the cutting plate 5 strictly matches the thickness of the glass interlayer film, so that the interlayer film adheres tightly to the surface of the cutting plate 5 during transmission without sagging. The equal height arrangement of the guide rollers 4 can prevent the material from twisting or wrinkling before entering the cutting area, thus ensuring cutting accuracy.

[0033] In addition, the first tool holder 8 and the second tool holder 81 are at the same height, and the two second tool holders 81 are at the same distance from the first tool holder 8 in the initial state. The initial equidistant state facilitates quick reset or switching to standard specifications, reducing tool distance deviation caused by human error. The consistent tool holder height also ensures that the downward pressure of all cutting blades 9 is evenly distributed, avoiding local stress concentration caused by height difference.

[0034] Working principle:

[0035] In use, the glass interlayer film is pulled from the unwinding roller 3 to the top of the cutting plate 5 via the guide roller 4. It remains horizontally tensioned under the continuous winding of the take-up roller 2. The electric push rod 15 drives the mounting bracket 7 to move horizontally along the first sliding rod 6, causing the first blade holder 8 and the two second blade holders 81 to shift laterally as a whole to adapt to the material edge or adjust the cutting start position. During cutting, the second motor 16 drives the drive rod 17 to rotate at a constant speed. Through the cooperation of the limiting groove 18 and the limiting rod 19 of the cutter 9, the rotational motion is converted into the vertical reciprocating cutting action of the cutter 9, causing multiple cutters 9 to simultaneously press down and penetrate the interlayer film, and then quickly lift off the cutting plate 5 during the return stroke. When the cutting distance needs to be adjusted, the first motor 14 drives the bidirectional screw 11 to rotate. The reverse threads at both ends drive the two second blade holders 81 to slide symmetrically along the second sliding rod 10, changing their distance from the fixed first blade holder 8 in the middle, thus achieving dynamic adjustment of the blade distance. Throughout the process, the height difference between the guide roller 4 and the cutting plate 5 ensures that the intermediate film is in close contact with the cutting plane during transmission. The precise coordination between the horizontal coordinated movement of the blade holder and the vertical cutting action not only ensures the continuous slitting efficiency of multi-specification products, but also avoids cutting misalignment and material deformation through mechanical linkage.

[0036] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention.

Claims

1. An equidistant cutting device for producing glass interlayer film, characterized in that: The device includes a frame (1) and a take-up roller (2) and an unwind roller (3) respectively disposed on both sides of the frame (1). A guide roller (4) is provided on one side of each of the take-up roller (2) and the unwind roller (3). A cutting plate (5) fixedly connected to the frame (1) is provided between the two guide rollers (4). A mounting frame (7) slidably connected to the frame (1) is provided above the cutting plate (5). A first blade holder (8) is fixedly connected to the middle of the mounting frame (7). Two second blade holders (81) are slidably connected to both ends of the mounting frame (7). A cutter (9) is provided on both the first blade holder (8) and the second blade holder (81). A bidirectional screw (11) is provided on the mounting frame (7) for driving the two second blade holders (81) to move closer or further away from each other.

2. The equidistant cutting device for producing glass interlayer film as described in claim 1, characterized in that: Two first sliding rods (6) are fixedly connected to the frame (1), and the mounting frame (7) is slidably connected to the two first sliding rods (6). An electric push rod (15) is fixedly connected to the frame (1), and the extended end of the electric push rod (15) is fixedly connected to the mounting frame (7).

3. The equidistant cutting device for producing glass interlayer film as described in claim 1, characterized in that: A first motor (14) for driving the bidirectional screw (11) to rotate is fixedly connected to the mounting bracket (7). The threads at both ends of the bidirectional screw (11) are arranged in opposite directions, and both ends of the bidirectional screw (11) are connected to a threaded sleeve (12) by ball thread. The two threaded sleeves (12) are fixedly connected to two second tool holders (81) respectively. A second sliding rod (10) is fixedly connected to the mounting bracket (7). The second sliding rod (10) passes through the first tool holder (8) and the second tool holder (81).

4. The equidistant cutting device for producing glass interlayer film as described in claim 3, characterized in that: The bidirectional screw (11) has a rotating ring (13) fixedly connected in the middle, and the rotating ring (13) is rotatably connected to the first tool holder (8).

5. The equidistant cutting device for producing glass interlayer film as described in claim 1, characterized in that: A drive rod (17) is rotatably connected to the frame (1). A limit groove (18) is provided on the drive rod (17). A limit rod (19) is fixedly connected to the middle of each of the multiple cutters (9). The limit rod (19) is adapted to the size of the limit groove (18). A second motor (16) for driving the drive rod (17) to rotate is fixedly connected to the frame (1).

6. The equidistant cutting device for producing glass interlayer film as described in claim 1, characterized in that: The two guide rollers (4) are at the same height, and the height difference between the guide rollers (4) and the cutting plate (5) is the same as the thickness of the glass interlayer.

7. The equidistant cutting device for producing glass interlayer film as described in claim 1, characterized in that: The first tool holder (8) and the second tool holder (81) are at the same height, and the two second tool holders (81) are at the same distance from the first tool holder (8) in the initial state.

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