Pre-cut film roller cutting device

Abstract

The pre-cut film roller cutting device includes a frame, an electric drive guide shaft, an electric drive cutting knife, a film roll fixing frame, a linear guide rail, a guide shaft, a limit plate, and also has a spacing adjustment mechanism and a film clamping roller mechanism; the film roll fixing frame is installed at the lower front side of the frame; the electric drive guide shaft includes a motor reduction mechanism and a bearing seat, and a guide cylinder; the limit plate is installed at the lower rear end of the frame; multiple sets of guide shafts are rotatably installed at the lower rear end, the middle front end, the middle rear end, the upper front end, the upper rear end and the upper rear end of the frame; the electric drive cutting knife includes a motor reduction mechanism A and a bearing seat A, a roller cylinder, and the linear guide rail is installed at the middle and upper part of the inner rear end of the frame, and the bearing seat A is installed between the two sets of linear guide sliding blocks; the spacing adjustment mechanism is installed at the outer rear end of the frame, and the film clamping roller mechanism is installed at the upper rear part of the frame. This new type not only ensures the quality of the pre-cut film after cutting, but also prevents the probability of the film roll breaking and improves production efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of cutting equipment, in particular to a pre-cut film rolling knife cutting device. Background Art

[0002] Wafer refers to the silicon wafer used to make silicon semiconductor circuits. Its raw material is silicon. During production, high-purity polysilicon is dissolved and mixed with silicon crystal seeds, and then slowly pulled out to form a cylindrical single silicon crystal rod. After grinding, polishing, and slicing, the silicon crystal rod forms a silicon wafer, that is, a wafer. After production, the surface of the wafer needs to be coated with a film to protect the wafer surface, improve the mechanical strength and corrosion resistance of the wafer, reduce the reflection and optical interference of the wafer surface, and adjust the electrical characteristics.

[0003] The existing films used in wafer production generally have three layers, a film layer and a release film protective layer outside the upper layer and the lower layer of the film layer. In specific production, a film roll is generally unwound through a material barrel, and then a pre-cut film with a corresponding inner diameter is cut off at a distance from the front and back of the film roll by an electric film cutting device. Subsequently, the pre-cut films are respectively cut through a set of conveying equipment and a rewinding equipment (during actual cutting, the lower release film protective layer will not be cut, but the film layer and the upper release film protective layer will be cut; the lower release film protective layer of the film roll has a certain distance from the front and back of the upper film layer and the upper film layer). The release film protective layer is the pre-cut film. The pre-cut film is used for wafer lamination. When laminating the wafer later, the pre-cut film is torn off from the lower release film layer manually or by related equipment. Then the lower end face of the pre-cut film is adhered to the wafer surface to complete the entire lamination work) and the recovery film (the lower release film protective layer with cutting holes distributed at a certain distance before and after cutting). The pre-cut film is used for lamination in the subsequent process, and the recovery film is recycled as waste (the conveying equipment and the rewinding equipment respectively convey the pre-cut film to the next lamination station and rewind the recovery film). The existing electric film cutting equipment used for processing pre-cut film generally performs film cutting operations by means of a cutter that reciprocates up and down. When the cutter moves up and down, since the outer circle of the pre-cut film being cut is consistent with the inner diameter of the inner side of the cutter, when the cutter moves upward, if the inner side of the lower end of the cutter and the outer circle of the pre-cut film being cut are pulled together for various reasons and the two are not effectively separated (for example, waste chips generated after cutting enter between the inner side of the cutter and the outer circle of the pre-cut film layer), the film roll will rise in height, and the conveying equipment and the rewinding equipment themselves are in a straightened state with the pre-cut film and the recovered film, respectively), which will have an adverse effect on the normal cutting work (the pre-cut film is retained in the lower end of the cutting knife, and usually the staff needs to stop the machine to eliminate the problem). In extreme cases, there is a probability of breaking the film roll. Utility Model Content

[0004] In order to overcome the drawbacks as described in the background of the existing electric film cutting equipment used for pre-cut films due to structural limitations, the utility model provides a pre-cut film roller cutting device which cuts the pre-cut film by a circular motion roller under the joint action of relevant mechanisms, thereby ensuring the quality of the pre-cut film after cutting and preventing the chance of the film roll breaking.

[0005] The technical solution adopted by the utility model to solve its technical problems is:

[0006] The pre-cut film roller cutting device comprises a frame, an electric drive guide shaft, an electric drive cutting knife, a film roll fixing frame, a linear guide rail, a guide shaft, and a limit plate, and is characterized in that it also has a spacing adjustment mechanism and a film clamping roller mechanism; the film roll fixing frame has at least two sets, and the two sets of film roll fixing frames are respectively mounted on the left and right parts of the lower front end of the frame; the electric drive guide shaft comprises a motor reduction mechanism, a bearing seat, and a guide cylinder, and the driving shafts on the left and right sides of the guide cylinder are respectively mounted in the inner rings of the bearings of the two sets of bearing seats, the rotating shaft of the motor reduction mechanism and one side of the driving shaft at one end are mounted together, and the left end bearing seat, the right end bearing seat and the motor reduction mechanism are respectively mounted on the left and right parts of the inner front upper end of the frame; the limit plate is mounted on the left and right sides of the rear inner lower end of the frame; the guide shaft has multiple sets, multiple The guide shaft is rotatably installed on the lower rear end, the front end of the middle part, the rear end of the middle part, the front end of the upper part, the left and right sides of the upper rear end, and the left and right sides of the upper rear end outside the frame; the electric drive cutting knife includes a motor reduction mechanism A, a bearing seat A, and a roller cutter drum. The driving shaft A in the middle of the left and right ends of the roller cutter drum is tightly sleeved in the inner rings of the bearings of the two sets of bearing seats A, and the rotating shaft of the motor reduction mechanism A and one side of the driving shaft A at one end are installed together; there are multiple sets of linear guides, and the shafts of the multiple sets of linear guides are respectively fixedly installed in the middle of the inner rear end and the left and right sides of the upper part of the frame. The upper and lower ends of the four sets of bearing seats A are respectively installed between the sliding blocks of the two sets of linear guides at the left end and the two sets of linear guides at the right end; the distance adjustment mechanism is installed in the middle of the rear outer end of the frame, and the film clamping roller mechanism is installed in the upper rear part of the frame.

[0007] Furthermore, a concave blade groove is distributed in an annular manner on the surface of the rolling cutter cylinder, the outer diameter and height of the rolling cutter cylinder and the guide cylinder are consistent, and the shape of the blade groove is consistent with the shape of the pre-cut film.

[0008] Furthermore, a spring is slidably installed between the front side of the shaft of the linear guide rail and the sliding block.

[0009] Furthermore, each set of spacing adjustment mechanism includes a screw rod, a handle, and a fixed seat. The front end of the screw rod is rotatably installed on the rear side of the fixed seat, the handle is installed on the rear end of the screw rod, the front side end of the fixed seat is rotatably installed with a limit bearing, and there is a wire seat in the rear middle part of the frame. The screw rod is installed together with the wire seat through threads.

[0010] Furthermore, the front end of the limit bearing of the spacing adjustment mechanism is in rotational contact with the rear side of the roller cutter cylinder.

[0011] The beneficial effects of the utility model are as follows: the new coordinated conveying equipment and rewinding equipment respectively convey the pre-cut film to the next film sticking station and rewind the film for use; the linear bearing and the spacing adjustment mechanism can adjust the thickness of the pre-cut film to be cut, and the adaptability is wider; the electric drive guide shaft, the electric drive cutting knife, etc. can cooperate to rotate and cut the pre-cut film; since the pre-cut film is cut by the circular motion of the roller, the pre-cut film will not be adhered to the blade groove after cutting (the contact part between the blade groove and the film roll is very small during the rotation), so on the basis of ensuring the quality of the pre-cut film after cutting, it also prevents the probability of the film roll breaking and improves the production efficiency (reduces the process of downtime for maintenance). Based on the above, the utility model has a good application prospect. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0013] Figure 1 , 2 It is a partial planar structural schematic diagram of the utility model.

[0014] Figure 3 , 4 It is a partial three-dimensional structural schematic diagram of the utility model. DETAILED DESCRIPTION

[0015] Figure 1 , 2As shown in , 3 and 4, the pre-cut film roller cutting device comprises a hollow frame 1 (the upper end and the front end are open structures), an electric drive guide shaft 2, an electric drive cutting knife 3, a film roll fixing frame 4, a linear guide rail 5, a guide shaft 6, a limit plate 7, and also has a spacing adjustment mechanism 8 and a film clamping roller mechanism 9; the film roll fixing frame 4 has two sets, and the film roll fixing frame 4 is a "U"-shaped structure. The two sets of film roll fixing frames 4 are respectively welded to the left and right parts of the lower front end of the frame 1, and the shafts at the two side ends of the film roll 10 are respectively rotated through the front end of the frame 1 from top to bottom and placed in the lower ends of the two sets of film roll fixing frames 4; the electric drive guide shaft comprises a motor reduction mechanism (not shown in the figure) and a bearing seat 21, guide cylinder 22, the driving shafts at the middle of the left and right ends of the guide cylinder 22 are respectively tightly sleeved in the inner rings of the bearings of the two sets of bearing seats 21, and the right side of the right end driving shaft is located on the right outer side of the right end bearing seat 21, the left end of the rotating shaft of the motor reduction mechanism and the right side of the right end driving shaft are fixed together by bolts through flanges, the left end bearing seat 21, the right end bearing seat 21 and the motor reduction mechanism are respectively fixed by bolts on the left and right parts of the inner front upper end of the frame 1; the left and right sides of the limit plate 7 (for preventing the sagging and shaking of the sagging and extended film) are respectively welded on the left and right sides of the rear inner lower end of the frame 1; the guide shaft 6 has six sets, and the left and right ends of the six sets of guide shafts 6 are respectively tightly sleeved on the two Only in the bearing inner ring of the bearing seat A61, the left and right sides of the bearing seats A61 at the two side ends of the six sets of guide shafts 6 are respectively fixed by bolts on the lower rear end, the middle front end, the middle rear end, the upper front end, the left and right sides of the upper rear end and the left and right parts of the upper rear end outside the frame 1; the electric drive cutting knife 3 includes a motor reduction mechanism A (not shown in the figure) and a bearing seat A31, and a roller cutter drum 32. The driving shaft A in the middle of the left and right side ends of the roller cutter drum 32 is respectively tightly sleeved in the bearing inner rings of the two sets of bearing seats A31, and the right side of the right end driving shaft A is located on the right outer side of the right end bearing seat A31. The left end of the rotating shaft of the motor reduction mechanism A and the right side of the right end driving shaft A are fixed by bolts via flanges. Installed together, the left end of the housing of the motor reduction mechanism A and the right outer side of the right end bearing seat A31 are fixed together by bolts (there is a thick washer between the two); the linear guide rails 5 are provided in four sets, and the front and rear sides of the shaft rods 51 of the four sets of linear guide rails 5 are respectively fixed by bolts on the middle part of the inner rear end and the left and right sides of the upper part of the frame 1, and the upper and lower ends of the four sets of bearing seats A31 are respectively welded and fixed between the sliding blocks 52 of the two sets of linear guide rails at the left end and the two sets of linear guide rails at the right end; the spacing adjustment mechanism 8 is provided in two sets, and the two sets of spacing adjustment mechanisms 8 are respectively bolted on the left and right sides of the outer side of the rear middle part of the frame 1, and the film roller mechanism 9 is bolted on the left and right sides of the inner rear upper part of the frame 1.

[0016] Figure 1 , 2As shown in , 3, and 4, the surface of the roller cutter cylinder is annularly distributed with a concave blade groove 33, the outer diameter and height of the roller cutter cylinder 32 and the guide cylinder 22 are consistent, and the shape of the blade groove 33 is consistent with the shape of the pre-cut film 11. A spring 53 is slidably installed between the front side of the shaft rod of the linear guide and the sliding block. Each set of spacing adjustment mechanism includes a screw rod 81, a handle 82, and a "]"-shaped hollow fixed seat 83. A bearing seat B84 is installed at the rear outer end of the fixed seat 83 through bolts. The front end of the screw rod 81 is tightly sleeved in the inner ring of the bearing of the bearing seat B84. The handle 82 is welded to the rear outer end of the screw rod 81. A limit bearing 85 is rotatably installed in the upper and lower parts of the front side end of the fixed seat 83, and the front part of the limit bearing 85 is located at the front outer end of the fixed seat 83. There are openings on the left and right sides of the middle part of the rear end of the frame, and a wire seat 101 is welded on the outside of the opening. The middle part of the screw rod 81 of the two sets of spacing adjustment mechanisms is screwed in and threadedly installed with the wire seat 101. The film clamping roller mechanism includes a motor reduction mechanism (not shown), a bearing seat B91, and a guide shaft B92. The driving shaft B at the middle of the left and right ends of the guide shaft B92 is respectively tightly sleeved in the inner rings of the bearings of the two sets of bearing seats B91, and the right side of the right end driving shaft B is located on the right outer side of the right end bearing seat B91. The left end of the rotating shaft of the motor reduction mechanism B and the right side of the right end driving shaft B91 are fixed together by bolts through the flange B. The left end bearing seat B91, the right end bearing seat B91 and the motor reduction mechanism B are respectively fixed by bolts on the left and right sides of the upper rear part of the frame 1. The front side ends of the limit bearings 84 of the two sets of spacing adjustment mechanisms and the left and right rear ends of the hob 31 are respectively in rotational contact.

[0017] Figure 1 , 2As shown in Figures 3 and 4, the new coordinated conveying equipment and rewinding equipment respectively convey the pre-cut film 11 to the next film laminating station and rewind the recovery film 12 for use. The shafts at both sides of the whole roll of film laminating roll 10 are rotated respectively and placed from top to bottom through the front end of the frame 1 into the lower ends of the two sets of film roll fixing frames 4. Then the staff passes the front end of the film laminating roll 10 through the rear side of the rear lower end guide shaft 6 on the left and right sides of the frame, the rear upper side of the middle rear end guide shaft 6, the lower side of the middle front end guide shaft 6, the front side of the upper front end guide shaft 6, the upper side of the upper rear end guide shaft 6, the lower end of the guide shaft B92, and the front side of the rear guide shaft 6 outside the frame (after the front sides of the front ends of the pre-cut film 11 and the recovery film 12 are torn off after subsequent cutting, the pre-cut film 11 is conveyed to the next film laminating station and the recovery film 12 is rewinded respectively through the conveying equipment and the rewinding equipment). All guide shafts 6 play a guiding role, and the front end of the film roll 10 is led upward through the rear end of the guide cylinder 22 and the front end of the roller cutter cylinder 32. When the staff rotates the handles 82 of the two sets of spacing adjustment mechanisms to the left, the screws of the two sets of spacing adjustment mechanisms drive the limit bearing 85 to move to the rear end (the springs 53 of the four sets of linear guides 5 push the electric drive cutter to move backward, and the rear end of the guide cylinder 22 and the front end of the roller cutter cylinder 32 are spaced apart, which is convenient for passing through the film roll from bottom to top and subsequently cutting the corresponding film roll with a larger thickness). When the staff rotates the handles 82 of the two sets of spacing adjustment mechanisms to the right, the screws of the two sets of spacing adjustment mechanisms drive the limit bearing 85 to move to the front end (the guide blocks of the four sets of linear guides 5 overcome the elastic force of the springs 53 to push the electric drive cutter to move forward, and the distance between the rear end of the guide cylinder 22 and the front end of the roller cutter cylinder 32 is shortened, which is convenient for subsequent cutting of the film roll with a lower thickness). The motor reduction mechanism A of the electric-driven cutting knife drives the roller cutter drum 32 to rotate clockwise, and the motor reduction mechanism of the electric-driven guide mechanism drives the guide drum 22 to rotate counterclockwise. In this way, the film roll between the front side of the roller cutter drum 32 and the rear side of the guide drum 22 can be continuously rotated under the pulling action of the conveying device and the rewinding device to cut the continuous pre-cut film 11 at intervals (about 2 mm) on the film roll (during actual cutting, the lower release film protective layer will not be cut, but the film layer and the upper release film protective layer will be cut; the film layer and the upper release film distributed at a certain distance in front and behind the upper part of the lower release film protective layer of the film roll The protective layer is the pre-cut film 11, which is used for wafer lamination. When laminating the wafer later, the pre-cut film 11 is torn off from the lower release film layer manually or by related equipment, and then the lower end face of the pre-cut film 11 is adhered to the surface of the wafer to complete the entire laminating work) and the recovery film 12 (the lower release film protective layer with cutting holes distributed at a certain distance before and after cutting). The pre-cut film 11 is used for laminating in the subsequent process, and the recovery film 12 is recovered as waste (the conveying equipment and the rewinding equipment respectively convey the pre-cut film 11 to the next laminating station and rewind the recovery film 12).Through the above, the novel invention can adjust the thickness of the pre-cut film to be cut under the joint action of the linear bearing and the spacing adjustment mechanism, and has a wider adaptability. The electric-driven guide shaft, the electric-driven cutting knife, etc. can cooperate to rotate to cut the pre-cut film. Since the pre-cut film 11 is cut by the circular motion of the roller, the pre-cut film 11 will not be adhered to the blade groove 33 after cutting (the contact area between the blade groove 33 and the film roll 10 is very small during rotation). Therefore, on the basis of ensuring the quality of the pre-cut film 11 after cutting, the probability of the film roll breaking is prevented, and the production efficiency is improved (the shutdown and maintenance process is reduced).

[0018] The above shows and describes the basic principles and main features of the utility model and the advantages of the utility model. For those skilled in the art, it is obvious that the utility model is limited to the details of the above exemplary embodiments, and the utility model can be implemented in other specific forms without departing from the spirit or basic features of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the utility model is defined by the attached claims rather than the above description, and it is intended that all changes that fall within the meaning and scope of the equivalent elements of the claims are included in the utility model.

[0019] In addition, it should be understood that although the present specification is described according to the implementation mode, the implementation mode does not only include an independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in the embodiments can also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A pre-cut film roller cutting device, comprising a frame, an electric drive guide shaft, an electric drive cutting knife, a film roll fixing frame, a linear guide rail, a guide shaft, and a limit plate, characterized in that: It also has a spacing adjustment mechanism and a film clamping roller mechanism; there are at least two sets of film roll fixing frames, which are respectively installed on the left and right parts of the lower front end of the frame; the electric drive guide shaft includes a motor reduction mechanism, a bearing seat, and a guide cylinder, and the drive shafts on the left and right sides of the guide cylinder are respectively installed in the inner rings of the bearings of the two sets of bearing seats, the rotating shaft of the motor reduction mechanism and one side of the drive shaft at one end are installed together, the left end bearing seat, the right end bearing seat and the motor reduction mechanism are respectively installed on the left and right parts of the inner front upper end of the frame; the limit plate is installed on the left and right sides of the rear inner lower end of the frame; there are multiple sets of guide shafts, which are rotatably installed on the rear lower end, the middle front end, and the middle rear end of the frame respectively. , the upper front end, the left and right sides of the upper rear end and the left and right parts of the upper end of the outer rear side of the frame; the electric drive cutting knife includes a motor reduction mechanism A and a bearing seat A, a roller cutter, and the driving shaft A in the middle of the left and right ends of the roller cutter cylinder is tightly sleeved in the inner rings of the bearings of the two sets of bearing seats A, and the rotating shaft of the motor reduction mechanism A and one side of the driving shaft A at one end are installed together; there are multiple sets of linear guides, and the shafts of the multiple sets of linear guides are respectively fixedly installed in the middle of the inner rear end and the left and right sides of the upper part of the frame, and the upper and lower ends of the four sets of bearing seats A are respectively installed between the sliding blocks of the two sets of linear guides at the left end and the two sets of linear guides at the right end; the distance adjustment mechanism is installed in the middle of the rear outer end of the frame, and the film clamping roller mechanism is installed in the upper rear part of the frame.

2. The pre-cut film rolling knife cutting device according to claim 1, characterized in that: The surface of the roller cutter drum is provided with an inwardly concave blade groove in an annular shape. The outer diameter and height of the roller cutter drum and the guide drum are consistent, and the shape of the blade groove is consistent with the shape of the pre-cut film.

3. The pre-cut film rolling knife cutting device according to claim 1, characterized in that: A spring is slidably mounted between the front side of the shaft of the linear guide and the sliding block.

4. The pre-cut film rolling knife cutting device according to claim 1, characterized in that: Each set of spacing adjustment mechanism includes a screw rod, a handle, and a fixed seat. The front end of the screw rod is rotatably installed on the rear side of the fixed seat, the handle is installed on the rear end of the screw rod, and a limited bearing is rotatably installed on the front side end of the fixed seat. There is a screw seat in the rear middle part of the frame, and the screw rod is installed together with the screw seat through threads.

5. The pre-cut film rolling knife cutting device according to claim 4, characterized in that: The front end of the limit bearing of the spacing adjustment mechanism is in rotational contact with the rear side of the roller cutter cylinder.

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