Splicing jig for thin film materials

By designing a film material splicing fixture, and using cutting flanges and sliding groove structures to achieve precise cutting and splicing of film materials, the problem of easy space at the splicing in the prior art is solved and the product yield rate is improved.

CN119427763APending Publication Date: 2025-02-14厦门美塑新质科技有限公司
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Patent Information

Application Number
CN202411881123.0
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-19
Publication Date
2025-02-14

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Abstract

The invention discloses a thin film material splicing jig which comprises a body extending in the front-back direction and suitable for containing a thin film material, and the body is provided with a first sliding groove and a cutting flange; the first sliding groove extends in the front-back direction and penetrates through the body in the up-down direction. The cutting flange extends in the front-back direction and is located on one side of the body in the left-right direction so that a cutter can cut the film material in the extending direction of the cutting flange. The fixing part extends in the front-back direction, is rotationally connected to the body around a first axis, and is suitable for covering the body to press against the thin film material placed on the body or being opened from the body to be separated from the thin film material placed on the body; the fixing piece is provided with a second sliding groove corresponding to the first sliding groove, and the second sliding groove extends in the front-back direction and penetrates through the fixing piece in the up-down direction; and the limiting assembly comprises a bolt and a nut, the bolt penetrates through the first sliding groove and the second sliding groove to slide in the front-back direction, and the bolt is suitable for being matched with the nut in a screwed mode to be fixed to the body and the fixing piece. The splicing jig can cut new and old thin film materials to form edges convenient to splice, so that no gap is left at the splicing position of the new and old thin film materials.
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Description

Technical Field

[0001] The invention relates to the technical field of film splicing, and in particular to a splicing jig for film materials. Background Art

[0002] Film materials are generally used to manufacture products such as carrier tapes and adhesive tapes. They are usually placed in rolls on rotatable rollers. When a roll of film material is used up, the film roll needs to be replaced. In order not to affect the normal production of the machine, the head of the new film roll is usually spliced ​​to the tail of the old film roll. The existing splicing method is generally that workers directly splice the head edge of the new film roll and the tail edge of the old film roll together with adhesive tape. This splicing method is likely to leave a gap between the head and tail of the two film rolls, affecting the yield rate of the manufactured products. Summary of the invention

[0003] The purpose of the present invention is to overcome the above-mentioned defects or problems existing in the background technology and to provide a film material splicing jig which can cut new and old film materials to form edges that are convenient for splicing, so that no gaps are left at the splicing of the new and old film materials.

[0004] To achieve the above object, the present invention adopts the following technical solutions:

[0005] Technical solution 1: A splicing jig for film materials, comprising: a main body, which extends in the front-to-back direction and is suitable for placing film materials, and is provided with a first slide groove and a cutting flange; the first slide groove extends in the front-to-back direction and passes through the main body in the up-down direction; the cutting flange extends in the front-to-back direction and is located on one side of the left-right direction of the main body, so that the tool can cut the film material along the extension direction of the cutting flange; a fixing member, which extends in the front-to-back direction and is rotatably connected to the main body around a first axis, and is suitable for covering the main body to press against the film material placed on the main body, or opening from the main body to break contact with the film material placed on the main body; the fixing member is provided with a second slide groove corresponding to the first slide groove, the second slide groove extends in the front-to-back direction and passes through the fixing member in the up-down direction; and a limiting assembly, which comprises a bolt and a nut, the bolt passes through the first slide groove and the second slide groove to slide in the front-to-back direction, and is suitable for being threadedly matched with the nut to be fixed to the main body and the fixing member.

[0006] Technical solution 2 based on technical solution 1: the limiting assembly also includes a slider; the slider includes a sliding portion and a lap portion, the sliding portion is located in the second slide groove and is suitable for sliding along the extension direction of the second slide groove, and the lap portion is lapped on the fixing member along the up and down directions; the bolt passes through the slider, and its nut is lapped to the lap portion of the slider.

[0007] Technical solution three based on technical solution two: the upward side surface of the main body forms a bearing surface, and the bearing surface is used for placing the film material; the downward side surface of the fixing part forms a pressing surface, and the pressing surface is used to press the film material placed on the bearing surface; the bearing surface is protruding with a limiting portion at a position close to the first axis, and the limiting portion is suitable for cooperating with the limiting assembly to position the film material in the front and rear directions.

[0008] Technical solution 4 based on technical solution 3: the limiting portion is provided with a limiting surface extending toward the upper end of the bearing surface and along the left-right direction.

[0009] Technical solution five based on technical solution three: the lower end surface of the sliding portion of the slider is inclined from top to bottom and from back to front, and the rear edge of the lower end surface is higher than the bearing surface when the fixing member is covered on the main body; the limiting portion is located at the rear end of the bearing surface.

[0010] Technical solution six based on technical solution five: the shape of the nut on the projection plane perpendicular to its rotation axis has a long side and a short side, the size of the long side is larger than the groove width of the first slide groove, and the size of the short side is smaller than the groove width of the first slide groove, so that the nut is locked with the body when rotated to the corresponding position or passes through the first slide groove when the fixing part is opened from the body.

[0011] Technical solution seven based on technical solution six: the main body is provided with first installation grooves recessed from the bearing surface on the left and right sides of the first slide groove, both of which extend along the first direction and are installed with first foam strips, and the upper side surface of the first foam strip is flush with the bearing surface.

[0012] Technical Solution 8 based on Technical Solution 7: The fixing member is provided with second installation grooves recessed by the pressure surface on the left and right sides of the second slide groove, and both of the second installation grooves extend along the first direction and are installed with second foam strips, and the lower side surface of the second foam strip is flush with the pressure surface.

[0013] Technical solution nine based on technical solution eight: a buckle is installed at the front end of the fixing member, and the buckle is used to lock and connect with the front end of the main body when the fixing member is covered on the main body.

[0014] Technical solution ten based on technical solution nine: the main body and the fixing part are rotatably connected by hinges located at the rear ends of the two.

[0015] It can be seen from the above description of the present invention that, compared with the prior art, the present invention has the following beneficial effects:

[0016] Technical solution 1 provides a film material splicing jig, which includes a main body, a fixing part and a limiting component. The head of the new film material and the tail of the old film material can be stacked on the main body in the same direction, and then the fixing part is rotated to cover the main body and press against the stacked film materials, so that the head edge of the new film material and the tail edge of the old film material are exposed to the cutting flange of the main body at the same time, and then the two film materials are cut simultaneously along the cutting flange with a tool to form a consistent splicing edge, and then the tape is attached to one side of one of the film materials, and the tape is folded so that the tape is attached to the other side of the other film, and then the fixing part is opened to connect the two together. The film material can be taken out; in this process, the limiting component plays a role in limiting one side of the width direction of the film material. After the two film materials are stacked on the main body, the first side in the width direction will abut against the main body. At this time, the position of the bolt in the limiting component can be adjusted along the first slide groove and the second slide groove so that the bolt abuts against the second side in the width direction of the film material, thereby positioning the film material in the width direction to avoid position displacement of the film material during the cutting process; through the position-adjustable limiting component, the splicing jig can adapt to film materials of different widths, which is convenient for splicing new and old film materials, and there is no gap at the splicing.

[0017] In technical solution two, the limit assembly includes a slider, which includes a sliding portion and an overlapping portion. The slider is located in the second slide groove and slides with the second slide groove to prevent the limit assembly from shaking due to the incompatibility of the second slide groove and the first slide groove in size; the overlapping portion overlaps the fixing part, so that the slider and the fixing part form a limit in the up and down directions to prevent the slider from falling off; at the same time, the nut of the bolt overlaps the overlapping portion of the slider, and the bolt also forms a limit in the up and down directions with the fixing part to prevent the bolt from falling off.

[0018] In technical solution three, a bearing surface is provided on the main body, and a pressing surface is provided on the fixing part, and the two cooperate with each other, so that the film material can be positioned on the fixture through the opening and closing actions of the fixing part; wherein a limiting portion is protrudingly provided on the bearing surface near the first axis, and the limiting portion can cooperate with the limiting component to limit the film material in the front and rear direction, that is, in the width direction of the film material; the setting of the limiting portion can form a gap of a certain size for accommodating the film material between the pressing surface and the bearing surface after the fixing part is covered on the main body, thereby avoiding damage to the film material due to shearing when the fixing part is covered on the main body.

[0019] In technical solution 4, the limiting surface of the limiting portion faces the front end of the bearing surface, so that one side edge of the film material in the width direction can abut against the limiting portion.

[0020] In technical solution five, the lower end face of the sliding part of the slider is inclined, and the rear edge of the lower end face is higher than the bearing surface when the fixing part is covered on the main body. With this arrangement, when the limiting component moves its own position to abut and position one side edge of the width direction of the film material, the side edge of the film material will abut against the lower end face of the sliding part instead of abutting against the rear side surface of the sliding part. The lower end face of the sliding part will apply force to the edge of the film material in the up and down directions and the front and back directions, so that the film material is subjected to more uniform force when abutting against the slider, which can avoid folding, edge warping, etc. of the film material due to abutting against the limiting component, thereby reducing damage to the film material.

[0021] In technical solution six, the nut can be rotated due to the shape characteristics of its long and short sides. When the fixing piece is covered on the main body and needs to be fixed, the long side abuts against the main body so that the fixing piece and the main body are fixed as one. When the fixing piece needs to be opened, the short side allows the nut to pass through the first slide groove and the second slide groove. In this way, the nut does not need to be removed from the bolt, and the limit assembly can move with the fixing piece, making the operation of the fixture more convenient.

[0022] In technical solution seven, two first installation grooves are set on the main body, and the first foam strips are installed in the first installation grooves. The first foam strips are used to increase the friction between the bearing surface and the film material to avoid uneven splicing edges caused by force displacement of the film material during cutting.

[0023] In technical solution eight, two second installation grooves are provided on the fixing member, and second foam strips are installed in the second installation grooves. Through the cooperation of the second foam strips and the first foam strips, the friction force on the film material is improved when the fixing member is covered to the main body, thereby preventing the film material from being displaced by force during cutting and causing uneven splicing edges.

[0024] In technical solution nine, a fastening piece is fixed to the front end of the fixing piece, and the front end of the fixing piece is fastened to the main body through the fastening piece to achieve preliminary positioning. Then the position of the limiting assembly is adjusted, and the fixing piece and the main body are locked together through the bolts and nuts of the limiting assembly.

[0025] In technical solution ten, hinges are provided at the rear ends of the main body and the fixing member, and the main body and the fixing member are connected by the hinges so that the main body and the fixing member can rotate around the first axis. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0027] Figure 1It is a schematic diagram of the structure explosion of a film material splicing jig involved in an embodiment of the present invention;

[0028] Figure 2 It is a schematic diagram of the assembly state of the film material splicing jig involved in the embodiment of the present invention;

[0029] Figure 3 It is a structural schematic diagram of a film material splicing jig involved in an embodiment of the present invention;

[0030] Figure 4 for Figure 1 Enlarged view of part A.

[0031] Description of main reference numerals:

[0032] Main body 10; first slide groove 11; cutting flange 12; bearing surface 13; limiting portion 14; limiting surface 141; first mounting groove 15; buckling protrusion 16;

[0033] Fixing member 20; second slide groove 21; pressing surface 22; second mounting groove 23; buckling member 24; buckling hole 25;

[0034] Limiting assembly 30; bolt 31; nut 32; slider 33; sliding portion 34; lap portion 35; lower end surface 36;

[0035] Hinge 40. DETAILED DESCRIPTION

[0036] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are preferred embodiments of the present invention and should not be regarded as excluding other embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] In the claims, description and the above-mentioned drawings of the present invention, unless otherwise clearly defined, the use of terms such as "first", "second" or "third" etc. are for distinguishing different objects rather than for describing a specific order.

[0038] In the claims, specification and the above-mentioned drawings of the present invention, unless otherwise explicitly defined, directional words, such as the terms "center", "lateral", "longitudinal", "horizontal", "vertical", "top", "bottom", "inside", "outside", "up", "down", "front", "back", "left", "right", "clockwise", "counterclockwise", etc., indicating directions or positional relationships are based on the directions and positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the specific protection scope of the present invention.

[0039] In the claims, specification and the above drawings of the present invention, unless otherwise clearly defined, if the term "fixed connection" or "fixed connection" is used, it should be understood in a broad sense, that is, any connection method without a displacement relationship and relative rotation relationship between the two, that is to say, including non-detachable fixed connection, detachable fixed connection, integrated connection and fixed connection through other devices or elements.

[0040] In the claims, description and drawings of the present invention, if the terms "include", "have" and their variations are used, they are intended to mean "including but not limited to".

[0041] The embodiment of the present invention relates to a film material splicing jig, which is used to splice the head of a new film material and the tail of an old film material into one piece for continuous use of the film material. The film material referred to in this embodiment refers to a polymer film, which can be wound into a roll for use.

[0042] Reference Figure 1 The splicing fixture includes a body 10, a fixing member 20, a stopper assembly 30 and a hinge 40. Figure 1 The coordinates shown in the figure mark the positions of the front-back direction, left-right direction and up-down direction referred to in this specification and claims. It should be noted that since the fixing member 20 can be rotated and opened and closed relative to the body 10, the description of the up-down direction of the fixing member 20 is based on the fixing member 20 being in the closed state.

[0043] In the splicing jig, the body 10 extends in the front-to-back direction and is suitable for placing a film material, and is provided with a first slide groove 11 and a cutting flange 12; the first slide groove 11 extends in the front-to-back direction and penetrates the body 10 in the up-down direction; the cutting flange 12 extends in the front-to-back direction and is located on one side of the body 10 in the left-right direction, so that the tool can cut the film material along the extension direction of the cutting flange 12; the fixing member 20 extends in the front-to-back direction and is rotatably connected to the body 10 around the first axis, and is suitable for covering the body 10 to press against the film material placed on the body 10, or from The main body 10 is opened to break away from contact with the film material placed on the main body 10; the fixing member 20 is provided with a second slide groove 21 corresponding to the first slide groove 11, and the second slide groove 21 extends in the front-to-back direction and passes through the fixing member 20 in the up-down direction; the limiting assembly 30 includes a bolt 31 and a nut 32, and the bolt 31 passes through the first slide groove 11 and the second slide groove 21 to slide in the front-to-back direction, and is suitable for being threadedly engaged with the nut 32 to be fixed to the main body 10 and the fixing member 20; the main body 10 and the fixing member 20 are rotatably connected by a hinge 40 located at the rear ends of the two.

[0044] The upward side surface of the body 10 forms a bearing surface 13, and the bearing surface 13 is used for placing the film material; the downward side surface of the fixing member 20 forms a pressing surface 22, and the pressing surface 22 is used to press the film material placed on the bearing surface 13; the bearing surface 13 is provided with a stopper 14 protruding at a position close to the first axis, and the stopper 14 is suitable for cooperating with the stopper assembly 30 to position the film material in the front-to-back direction. The stopper 14 is provided with a stopper surface 141 extending toward the front end of the bearing surface 13 and in the left-right direction.

[0045] Furthermore, the body 10 is provided with first installation grooves 15 recessed by the bearing surface 13 on the left and right sides of the first slide groove 11, the two first installation grooves 15 extend along the first direction, and are provided with first foam strips, and the upper surface of the first foam strip is flush with the bearing surface 13. The fixing member 20 is provided with second installation grooves 23 recessed by the pressing surface 22 on the left and right sides of the second slide groove 21, the two second installation grooves 23 extend along the first direction, and are provided with second foam strips, and the lower surface of the second foam strip is flush with the pressing surface 22.

[0046] In addition, a buckle member 24 is installed at the front end of the fixing member 20 , and the buckle member 24 is used to be locked and connected with the front end of the main body 10 when the fixing member 20 is covered on the main body 10 .

[0047] Specifically, refer to Figure 1 In this embodiment, the main body 10 is roughly a long plate-shaped member, and its length direction is also its extension direction. Figure 1 The front-to-back direction shown. The upper surface of the body 10 forms a bearing surface 13 for placing the film material. At the same time, a first slide groove 11 is provided in the middle position of the left-right direction of the body 10, extending in the front-to-back direction. The first slide groove 11 penetrates the upper surface and the lower surface of the body 10 in the up-down direction, and its two ends in the front-to-back direction are close to the two ends of the body 10 in the front-to-back direction. Two first installation grooves 15 are provided on the left and right sides of the first slide groove 11, respectively. The two first installation grooves 15 also extend in the front-to-back direction, and the first installation groove 15 is a sink groove with open front and back ends. The first foam strip that matches the size of the first installation groove 15 can be installed in the first installation groove 15, and the thickness of the first foam strip matches the depth of the sink groove, so that the upper surface of the first foam strip can be flush with the bearing surface 13 of the body 10, so as to increase the friction on the surface of the film material, and avoid the film material being displaced by force during cutting, resulting in uneven splicing edges.

[0048] A cutting flange 12 is provided on the left edge of the body 10. The cutting flange 12 can be regarded as formed by the left edge of the body 10 protruding outward, extending in the front-to-back direction, and forming a step-like structure with the bearing surface 13 of the body 10. After placing the film material on the jig, the film material can be cut by the tool close to the cutting edge, so that the cutting direction of the tool is limited by the cutting edge to avoid uneven splicing edges of the film material.

[0049] Reference Figure 1 and Figure 4 , a limiting portion 14 protruding from the bearing surface 13 is provided at the rear end of the body 10, and a limiting surface 141 is formed on the front side surface of the limiting portion 14. After the film material is placed on the bearing surface 13 of the body 10, it can be pushed backward so that the film material abuts against the limiting surface 141 of the limiting portion 14. The bearing surface 13 is provided on the body 10, and the fixing member 20 is provided with a pressing surface 22. The two cooperate with each other, and the film material can be positioned on the fixture through the opening and closing actions of the fixing member 20; wherein the limiting portion 14 is protruding from the position of the bearing surface 13 close to the first axis, and the limiting portion 14 can cooperate with the limiting assembly 30 to limit the film material in the front-to-back direction, that is, in the width direction of the film material; the setting of the limiting portion 14 can form a certain size of gap for accommodating the film material between the pressing surface 22 and the bearing surface 13 after the fixing member 20 is covered on the body 10, so as to avoid the film material from being damaged due to shearing when the fixing member 20 is covered on the body 10. The limiting surface 141 of the limiting portion 14 faces the front end of the carrying surface 13 , so that one side edge of the film material in the width direction can abut against the limiting portion 14 .

[0050] Reference Figure 1In this embodiment, the fixing member 20 is a long plate-shaped member with substantially the same shape and size as the main body 10, and its length direction is also its extension direction. Figure 1 The lower surface of the fixing member 20 forms a pressing surface 22 for cooperating with the body 10 to press against the film material, and at the same time, a second slide groove 21 is provided in the middle position of the fixing member 20 in the left-right direction along the front-to-back direction. The second slide groove 21 passes through the upper and lower surfaces of the fixing member 20 in the up-down direction, and its two ends in the front-to-back direction are close to the two ends of the fixing member 20 in the front-to-back direction. At the same time, the length, position and size width of the second slide groove 21 are consistent with or corresponding to the first slide groove 11 on the body 10. Two second mounting grooves 23 are respectively provided on the left and right sides of the second slide groove 21, and the two second mounting grooves 23 also extend in the front-to-back direction, and the second mounting groove 23 is a sunken groove with open front and rear ends, and a second foam strip adapted to the size of the second mounting groove 23 can be installed in the second mounting groove 23, and the thickness of the second foam strip is adapted to the depth of the sunken groove, so that the upper surface of the second foam strip can be flush with the pressing surface 22 of the fixing member 20 to increase the friction force on the surface of the film material, and at the same time, through the cooperation with the first foam strip on the main body 10, the friction force on the film material is increased when the fixing member 20 is covered on the main body 10, so as to avoid the film material being displaced by force during cutting and causing uneven splicing edges.

[0051] A hinge 40 is provided at the rear end of the body 10 and the fixing member 20, and two movable leaves of the hinge 40 are respectively connected to the body 10 and the fixing member 20, and the rotating shaft of the hinge 40 forms the rotation axis of the body 10 and the fixing member 20, and the rotation axis is the first axis of the fixing member 20 rotating around the body 10. Through the hinge 40, the fixing member 20 can be rotated relative to the body 10 to open and close. When a film material is placed on the bearing surface 13 of the body 10, the fixing member 20 can be rotated to cover the body 10. At this time, the bearing surface 13 and the pressing surface 22 cooperate to apply force to the film material, so that the film material can be relatively positioned between the body 10 and the fixing member 20.

[0052] In addition, a snap-fit ​​structure is provided at the front end of the main body 10 and the fixing member 20, and the snap-fit ​​structure includes the above-mentioned snap-fit ​​member 24 installed at the front end of the fixing member 20, and the snap-fit ​​member 24 is rotatably installed at the front end position of the fixing member 20. In addition, it also includes a snap-fit ​​protrusion 16 provided at the front end of the main body 10, and a snap-fit ​​hole 25 adapted to the position and size of the snap-fit ​​protrusion 16 is provided on the snap-fit ​​member 24. After the fixing member 20 is covered on the main body 10, the snap-fit ​​member 24 can be flipped onto the snap-fit ​​protrusion 16, and the snap-fit ​​protrusion 16 can be inserted into the snap-fit ​​hole 25, so that the fixing member 20 is locked on the main body 10.

[0053] Reference Figure 1The limiting assembly 30 further includes a slider 33; the slider 33 includes a sliding portion 34 and a lap portion 35, the sliding portion 34 is located in the second slide groove 21 and is suitable for sliding along the extension direction of the second slide groove 21, and the lap portion 35 is lapped on the fixing member 20 in the up-down direction; the bolt 31 passes through the slider 33, and its nut is lapped on the lap portion 35 of the slider 33. The lower end surface 36 of the sliding portion 34 of the slider 33 is inclined from top to bottom and from back to front, and the rear edge of the lower end surface 36 is higher than the bearing surface 13 when the fixing member 20 is covered on the body 10; the limiting portion 14 is located at the rear end of the bearing surface 13.

[0054] Furthermore, the shape of the nut 32 on the projection plane perpendicular to its rotation axis has a long side and a short side, the size of the long side is larger than the slot width of the first slide groove 11, and the size of the short side is smaller than the slot width of the first slide groove 11, so that the nut 32 is locked with the main body 10 when rotated to the corresponding position or passes through the first slide groove 11 when the fixing member 20 is opened from the main body 10.

[0055] Specifically, refer to Figure 1 In this embodiment, the limit assembly 30 includes a bolt 31, a nut 32 and a slider 33, wherein the bolt 31 is provided with a stud and a nut, the stud can be threadedly connected with the nut 32, the slider 33 is sleeved on the stud of the bolt 31, and is clamped with the nut of the bolt 31 through the overlap portion 35 on the slider 33. The slider 33 includes a sliding portion 34 and an overlap portion 35, wherein the sliding portion 34 is located below the overlap portion 35 and is integrally formed with the overlap portion 35 to form the slider 33. The size of the sliding portion 34 in the left-right direction is adapted to the width of the second slide groove 21, and the size of the overlapping portion 35 in the left-right direction is larger than the width of the second slide groove 21. Therefore, the overlapping portion 35 can overlap the upper surface of the fixing member and make the sliding portion 34 extend into the second slide groove 21, so that the slider 33 can slide along the extension direction of the second slide groove 21. At the same time, since the nut 32 is screwed on the bolt 31, the slider 33 is actually limited by the nut and the nut 32, and the slider 33 will not fall off from the second slide groove 21.

[0056] In addition, the lower end surface 36 of the sliding portion 34 is inclined from top to bottom and from back to front, and the rear edge of the lower end surface 36 is higher than the bearing surface 13 when the fixing member 20 is covered on the main body 10. In this way, when the limiting component 30 moves its own position to abut and position one side edge of the width direction of the film material, the side edge of the film material will abut on the lower end surface 36 of the sliding portion 34 instead of abutting on the rear side surface of the sliding portion 34. The lower end surface 36 of the sliding portion 34 will apply force to the edge of the film material in the up and down directions and the front and back directions, so that the film material is subjected to more uniform force when it abuts against the slider 33, which can avoid the film material from folding, edge warping, etc. due to abutting against the limiting component 30, thereby reducing damage to the film material.

[0057] The structure of the nut 32 is roughly rectangular, that is, the nut 32 has a relative long side and short side, wherein the size of the long side is larger than the slot width of the first slide slot 11, and the size of the short side is smaller than the slot width of the first slide slot 11. By rotating the nut 32, the nut 32 can be switched between a position interlaced with the first slide slot 11 and a position that can be accommodated by the first slide slot 11. When the fixing member 20 is covered on the body 10 and needs to be fixed, the fixing member 20 and the body 10 are fixed as a whole by abutting the long side against the body 10. When the fixing member 20 needs to be opened, the nut 32 can pass through the first slide slot 11 and the second slide slot 21 through the short side, so that the nut 32 does not need to be removed from the bolt 31, and the limit assembly 30 can move with the fixing member 20, making the operation of the fixture more convenient.

[0058] Reference Figure 2 and Figure 3When using the splicing jig, the head of the new film material and the tail of the old film material can be stacked on the main body 10 in the same direction, and then the fixing piece 20 is rotated to cover the main body 10 and press against the stacked film materials, so that the head edge of the new film material and the tail edge of the old film material are simultaneously exposed to the cutting flange 12 of the main body 10, and then the two film materials are cut simultaneously along the cutting flange 12 with a tool to form a consistent splicing edge, and then the tape is attached to one side of one of the film materials, and the tape is folded so that the tape is attached to the other side of the other film, and then the fixing piece 20 is opened to take out the two connected film materials; in this process During the cutting process, the limiting component 30 serves to limit one side of the film material in the width direction. After the two film materials are stacked on the main body 10, the first side in the width direction will abut against the main body 10. At this time, the position of the bolt 31 in the limiting component 30 can be adjusted along the first slide groove 11 and the second slide groove 21 so that the bolt 31 abuts against the second side in the width direction of the film material, thereby positioning the film material in the width direction to avoid positional displacement of the film material during the cutting process. Through the position-adjustable limiting component 30, the splicing jig can adapt to film materials of different widths, facilitate the splicing of new and old film materials, and there is no gap at the splicing.

[0059] The description of the above specification and embodiments is used to explain the protection scope of the present invention, but does not constitute a limitation on the protection scope of the present invention. Through the enlightenment of the present invention or the above embodiments, ordinary technicians in this field can obtain modifications, equivalent substitutions or other improvements to the embodiments of the present invention or part of the technical features thereof through logical analysis, reasoning or limited experiments, which should be included in the protection scope of the present invention.

Claims

1. A film material splicing jig, comprising: A body (10) extends in the front-to-back direction and is suitable for placing a thin film material, and is provided with a first slide groove (11) and a cutting flange (12); the first slide groove (11) extends in the front-to-back direction and penetrates the body (10) in the up-down direction; the cutting flange (12) extends in the front-to-back direction and is located on one side of the body (10) in the left-right direction, so that a cutter can cut the thin film material along the extending direction of the cutting flange (12); a fixing member (20) extending in the front-to-back direction and rotatably connected to the body (10) around a first axis, and adapted to cover the body (10) to press against a film material placed on the body (10), or to open from the body (10) to break away from contact with the film material placed on the body (10); the fixing member (20) is provided with a second slide groove (21) corresponding to the first slide groove (11), and the second slide groove (21) extends in the front-to-back direction and passes through the fixing member (20) in the up-down direction; and The limiting assembly (30) comprises a bolt (31) and a nut (32), wherein the bolt (31) passes through the first slide groove (11) and the second slide groove (21) to slide in the front-rear direction and is suitable for being threadedly engaged with the nut (32) to be fixed to the body (10) and the fixing member (20).

2. A film material splicing jig as claimed in claim 1, characterized in that: The limiting assembly (30) also includes a slider (33); the slider (33) includes a sliding portion (34) and a lap portion (35); the sliding portion (34) is located in the second slide groove (21) and is suitable for sliding along the extension direction of the second slide groove (21); the lap portion (35) is lapped on the fixing member (20) in the up and down direction; the bolt (31) passes through the slider (33), and its nut is lapped on the lap portion (35) of the slider (33).

3. A film material splicing jig as claimed in claim 2, characterized in that: The upward side surface of the main body (10) forms a bearing surface (13), and the bearing surface (13) is used for placing a thin film material; the downward side surface of the fixing member (20) forms a pressing surface (22), and the pressing surface (22) is used to press against the thin film material placed on the bearing surface (13); the bearing surface (13) is provided with a limiting portion (14) protruding at a position close to the first axis, and the limiting portion (14) is suitable for cooperating with the limiting component (30) to position the thin film material in the front-rear direction.

4. A film material splicing jig as claimed in claim 3, characterized in that: The limiting portion (14) is provided with a limiting surface (141) which is directed toward the front end of the bearing surface (13) and extends in the left-right direction.

5. A film material splicing jig as claimed in claim 3, characterized in that: The lower end surface (36) of the sliding portion (34) of the sliding block (33) is arranged to be inclined from top to bottom and from back to front, and the rear edge of the lower end surface (36) is higher than the bearing surface (13) when the fixing member (20) is covered on the main body (10); the limiting portion (14) is located at the rear end of the bearing surface (13).

6. A film material splicing jig as claimed in claim 5, characterized in that: The shape of the nut (32) on a projection plane perpendicular to its rotation axis has a long side and a short side, wherein the size of the long side is greater than the slot width of the first slide groove (11), and the size of the short side is less than the slot width of the first slide groove (11), so that the nut (32) is locked with the body (10) when it is rotated to a corresponding position, or passes through the first slide groove (11) when the fixing member (20) is opened from the body (10).

7. A film material splicing jig as claimed in claim 6, characterized in that: The body (10) is provided with first installation grooves (15) respectively recessed from the bearing surface (13) on the left and right sides of the first slide groove (11); both of the first installation grooves (15) extend along the first direction and are provided with first foam strips; the upper side surface of the first foam strips is flush with the bearing surface (13).

8. A film material splicing jig as claimed in claim 7, characterized in that: The fixing member (20) is provided with second installation grooves (23) respectively recessed from the pressing surface (22) on the left and right sides of the second sliding groove (21); the two second installation grooves (23) extend along the first direction and are provided with second foam strips; the lower side surface of the second foam strip is flush with the pressing surface (22).

9. A film material splicing jig as claimed in claim 8, characterized in that: A buckle piece (24) is installed at the front end of the fixing piece (20), and the buckle piece (24) is used to be locked and connected with the front end of the main body (10) when the fixing piece (20) is covered on the main body (10).

10. A film material splicing jig as claimed in claim 9, characterized in that: The main body (10) and the fixing member (20) are rotatably connected via hinges (40) located at the rear ends of the two.