Card support injection molding and polishing jig

Abstract

The utility model discloses a card support injection molding and polishing jig, which belongs to the field of card support processing and comprises a bottom plate and a panel, a plurality of lower accommodating grooves are arranged on the bottom plate, a plurality of rows of lower accommodating groove rows are formed in each lower accommodating groove, an upper mounting groove and a lower mounting groove are respectively concavely arranged on the top surface and the bottom surface of the bottom plate, and the panel is provided with an upper panel and a lower panel. The upper panel is mounted in the upper mounting groove, the lower panel is mounted in the lower mounting groove, the upper panel, the lower panel and the bottom plate are detachably connected together, an upper through hole is formed in the position, corresponding to the lower containing groove, of the upper panel, a protective sleeve is detachably mounted in the upper through hole, and strip-shaped holes are formed in the positions, located at the lower containing groove rows, of the lower panel. Soft limiting strips are arranged on the two sides of the strip-shaped hole respectively, each soft limiting strip is clamped between the groove bottom of the lower mounting groove and the lower panel, and the distance between every two adjacent soft limiting strips is smaller than the width of the clamping plate of the clamping support and larger than the distance between notches of the two limiting grooves in the clamping support; compared with the prior art, the card support is not easy to move up and down and is not easy to scratch.

Description

Technical Field

[0001] The utility model relates to the field of card holder jigs, in particular to a card holder injection molding and polishing jig. Background Art

[0002] The card tray is an accessory used on mobile phones. The card tray mainly includes a card board and a card cap on one side of the card board and arranged perpendicularly to the card board. The card board is recessed with a card slot for the SIM card to be placed inside. The thickness of the card cap is greater than the thickness of the card board, and both ends of the card cap extend out of the two sides of the card tray. The card board of the card tray is used to be inserted into the interior of the mobile phone, and the two opposite outer walls of the card board facing away from the card cap are recessed with limit grooves that cooperate with the internal limit of the mobile phone. The card cap of the card tray is sealed and fits with the outer wall of the mobile phone. After the initial processing of the card tray is completed, a series of post-processing processes such as sandblasting, oxidation, brushing, and polishing are required. During the post-processing process, the card tray fixture is required to stabilize the card tray and keep the card tray in a stable state during processing, which is conducive to ensuring the processing accuracy of the card tray and stabilizing product quality. For example, a wire drawing jig for a titanium card holder disclosed in application number 202410044103 comprises a base plate and a panel covering the base plate, the panel being provided with a plurality of grooves for placing the card holder, the grooves extending downwardly into the interior of the base plate, and a gap being provided between the base plate and the panel, an elastic limiting component for being clamped in or out of the grooves is provided in the gap, one end of the base plate is also provided with a pushing component for entering the gap and being able to push the elastic limiting component out of the groove, the elastic limiting component is a movable plate, the movable plate is provided with a plurality of rectangular holes, a plurality of the accommodating blocks are respectively provided with a plurality of the rectangular holes, and the width of the rectangular hole is greater than the width of the accommodating block, and the inner side wall of each rectangular hole is provided with a special-shaped buckle for clamping into the limiting groove; a plurality of transversely arranged springs are provided between the front side of the movable plate and the adjacent side wall of the placement groove, one end of the plurality of springs abuts the movable plate, and the other end abuts the side wall of the placement groove. During use, the movable block is rotated to make the arc-shaped protrusion abut against the movable plate, so that the special-shaped buckle is disengaged from the limit groove, and the tray can be loaded manually. After loading is completed, the movable block is rotated again to make the arc-shaped protrusion disengage from the movable plate. Under the action of the spring's rebound force, the special-shaped buckle is snapped into the limit groove, and the tray can be quickly fixed on the wire drawing jig.

[0003] However, the card plate of the card holder is placed in the receiving block of the base plate with a separate surface-to-surface tight fit, and the card cap of the card holder is simply placed flat in the groove of the panel without any fixed fit. The polishing equipment will produce a certain amount of vibration during the processing, which makes it easy for the card holder to move slightly upward on the jig, affecting the processing quality. At the same time, the card plate of the card holder is tightly fitted with the receiving block of the base plate, which easily causes friction between the card plate and the receiving block when taking it out, thereby causing the card plate of the card holder to be scratched.

[0004] In view of this, the inventor of this case conducted in-depth research on the problem, which led to the creation of this case. Utility Model Content

[0005] The purpose of the utility model is to provide a card tray injection polishing jig to solve the problem that the existing card tray jig easily causes the card tray to move upward and easily scratches the card plate.

[0006] In order to achieve the purpose, the utility model adopts the following technical solution:

[0007] The cam is secured to the bottom of the workbench and has a plurality of slots for securing the workbench and securing the workbench to the cam. The cams are secured to the bottom of the workbench and are adapted to engage with the workbench to engage with the workbench. The lower panel and the bottom panel are removably connected together, and the upper panel is provided with upper through holes corresponding to each communicating hole for the card plate of the card holder to pass through, and a protective cover that matches the upper through holes and can be tightly fitted on the outside of the card holder card plate is removably installed in the upper through holes, and the hollow space of the protective cover is the above-mentioned upper accommodating groove, and the lower panel is provided with a strip hole extending along the length direction of the lower accommodating groove row and for the card plate to pass through at each lower accommodating groove row, and soft limit strips are respectively provided on both sides of the length direction of the strip hole, one side falling into the range of the strip hole and the other side being outside the range of the strip hole, each soft limit strip is clamped between the bottom of the lower installation groove and the lower panel, and is positioned relative to the limit groove on the card plate in the strip hole, and the spacing between two adjacent soft limit strips is less than the width of the card holder card plate and greater than the spacing between the two limit groove notches on the card holder.

[0008] The bottom surface and the top surface of the base plate are both provided with four upper mounting grooves and four lower mounting grooves which are evenly spaced and distributed around the circumference of the base plate. The upper panels are locked in the four upper mounting grooves, and the lower panels are locked in the four lower mounting grooves.

[0009] The protective cover is composed of two blocks arranged at intervals laterally along the length extension direction of the card cap. The block is a hollow structure with one end open, and the opposite side of the two blocks is an open structure. The block has an upper limit portion and a lower limit portion. The upper limit portion has an upper straight plate and an upper arc plate. There are two upper straight plates. The two upper straight plates are arranged in parallel and at intervals along the front-to-back direction, and one end of the two upper straight plates is connected by an upper arc plate. The upper arc plate is a semicircular structure. The lower limit portion has a lower inclined plate and a lower arc plate. There are two lower inclined plates. The lower inclined plates are correspondingly located below the upper straight plate, and the two lower inclined plates form a circle from top to bottom. The gradually expanding horn structure, the upper arc plate is located below the lower arc plate, and the lower arc plate is a semi-arc horn structure that gradually expands from top to bottom, the lower limit portion is embedded in the upper through hole, and the card plate extends downward from the lower limit portion, the upper limit portion is limited in the upper part of the upper plate by the limiting strip, and the card cap is superimposed on the top surface of the upper limit portion and the top surface of the limiting strip, the upper arc plate is clamped on the outer side wall of the lower end of the card plate, the two upper straight plates, the upper arc plate, the two lower inclined plates and the lower arc plate are surrounded by a through groove that penetrates in the up and down direction and is open on one side, and the two opposite through grooves constitute the above-mentioned upper accommodating groove.

[0010] Taking the horizontal direction of the card cap as the left and right direction, each upper through hole forms several rows of upper through holes corresponding to the lower accommodating groove rows up and down, and the top surface of the upper panel is recessed with several limiting grooves spaced along the left and right directions and extending along the front and back directions at positions corresponding to the positions of each upper through hole row, and the two inner side walls opposite to each other on the left and right sides of the limiting groove form a horn structure that gradually expands from top to bottom, and the upper through hole row is located below the limiting groove, and the lower end of the limiting pressure strip is embedded in the limiting groove, and the limiting pressure strip is provided with several strip through grooves that are vertically penetrated and aligned with the upper through holes one by one, and the upper limit portion is embedded in the strip through groove.

[0011] The outer side wall of the lower inclined plate is provided with a lower protrusion, the inner side wall of the upper through hole is provided with a lower groove for the lower protrusion to be embedded in the position corresponding to the lower protrusion, the outer side wall of the upper straight plate is provided with an upper protrusion, and the inner groove wall of the strip-shaped through groove is provided with an upper groove for the upper protrusion to be embedded in the position corresponding to the upper protrusion.

[0012] The soft limit strip has a mounting portion and a limiting portion. The mounting portion is vertically arranged to the limiting portion, and the limiting portion is located on the side of the mounting portion facing the center position of the strip hole. The mounting portion is limited on the lower panel, and the limiting portion extends toward the center position of the strip hole and extends into the limiting groove of the card plate. The top surfaces of the mounting portion and the limiting portion are both flat on the bottom of the lower mounting groove.

[0013] The lower panel has a plurality of mounting strips spaced apart in the left-right direction and extending in the front-back direction, the front and rear ends of each mounting strip are connected by a connecting strip, and a locking plate locked on the bottom plate is convexly provided on the opposite side of the two connecting strips, and the above-mentioned strip-shaped holes are formed between the two mounting strips and the connecting strips, and the top surface of the mounting strip is concavely provided with an embedding groove for the mounting part to be embedded therein, and the limiting part is partially overlapped on the top surface of the mounting strip and partially extends into the strip hole facing away from the mounting part.

[0014] The soft limiting strip and the protective cover are both made of silicone.

[0015] The present invention relates to a new card holder injection molding and polishing jig. When assembling, each protective cover is limitedly installed in the upper panel one by one, and then the upper panel is locked on the bottom panel. Then, each soft limit strip is correspondingly embedded on both sides of the strip hole through the lower panel. At this time, one side of each soft limit strip extends into the range of the strip hole. When in use, the card holder's card plate is inserted downward from the hollow cavity of the protective cover, and the card holder's card plate passes through the lower accommodating groove until one side of each soft limit strip extends into the card holder's limit groove and the card holder's card plate is superimposed on the top surface of the protective cover. This completes the insertion of the card holder. Since the soft limit strip is a silicone part, the card tray can pass over the soft limit strip when it moves downward, so that one side of the soft limit strip will not scratch the card tray when it extends into the limit groove. At the same time, the protective cover made of silicone can also protect the card tray and will not scratch the card tray when the card tray moves up and down. Compared with the existing technology, the card tray is limited by one side of the soft limit strip extending into the limit groove of the card tray, so that the card tray is not easy to move up and down, and will not affect the post-processing of the card tray. Moreover, the protective cover can prevent friction with the card tray when taking the card tray, thereby making the card tray less likely to be scratched. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural diagram of the present utility model.

[0017] Figure 2 It is a cross-sectional schematic diagram of the present utility model.

[0018] Figure 3 This is a schematic diagram of the base plate structure of the present utility model.

[0019] Figure 4 It is a schematic diagram of the assembly structure of the upper panel and the protective cover of the utility model.

[0020] Figure 5 It is a structural schematic diagram of the lower panel of the present utility model. DETAILED DESCRIPTION

[0021] In order to further explain the technical solution of the present invention, it is described in detail below with reference to the accompanying drawings.

[0022] A card holder injection polishing fixture, such as Figure 1-Figure 5As shown, it includes a bottom plate 1 and a panel 2. The bottom plate 1 is provided with a plurality of lower accommodating grooves 100 for card holders, which stand upright outside the bottom plate 1. The lower accommodating grooves 100 are arranged in a matrix, and each lower accommodating groove 100 forms a plurality of rows of lower accommodating grooves. Here, four rows of lower accommodating grooves arranged at intervals from left to right are taken as an example. The four rows of lower accommodating grooves extend along the front-to-back direction. The panel 2 is installed on the bottom plate 1, and the panel 2 is provided with upper accommodating grooves that pass through the top and bottom and are used for the card holders to be clamped therein at positions corresponding to the lower accommodating grooves 100. The top and bottom surfaces of the above-mentioned bottom plate 1 are respectively provided with upper mounting grooves and lower mounting grooves. The bottom of the above-mentioned upper mounting groove is provided with a plurality of connecting holes connected to the lower mounting groove. This communicating hole is the lower accommodating groove 100 described above, and the above-mentioned panel 2 has an upper panel 21 and a lower panel 22, the upper panel 21 is installed in the upper mounting groove, and the lower panel 22 is installed in the lower mounting groove, and the upper panel 21, the lower panel 22 and the bottom plate 1 are detachably connected together; specifically, the bottom plate 1 is a tungsten steel circular plate body, and the upper panel 21 and the lower panel 22 are both square panels. One set of two opposite outer side walls of the upper panel 21 is convexly provided with a first locking plate 211, and the bottom of the upper mounting groove is concavely provided with a first locking groove for the first locking plate 211 to be locked therein, and one set of two opposite outer side walls of the lower panel 22 is convexly provided with a second locking plate 2 21, the bottom of the lower mounting groove is provided with a second locking groove for the second locking plate 221 to be locked therein, preferably, the bottom surface and top surface of the bottom plate 1 are provided with four upper mounting grooves and the above-mentioned lower mounting grooves uniformly spaced and distributed around the circumferential direction of the bottom plate 1, the four upper mounting grooves are all locked with the upper panel 21, and the four lower mounting grooves are all locked with the lower panel 22; when used, if the post-processing machine is a polishing machine, the card holder injection polishing jig is rotatably installed on the polishing machine, and the working end of the polishing machine is on one side of the bottom plate, and can polish the card holder caps on a group of panels at the same time. After the card holders on a group of panels are polished, the card holders are The injection molding polishing jig rotates to polish the trays on the next group of panels. Compared with the existing tray jig with only one group of panels located in the middle of the base plate, the polishing machine has a longer overall working path for polishing from the outside to the inside, which will make the polishing accuracy of the tray caps on the inside and outside inconsistent. For example, the tray caps on the outside have been polished, and when the polishing machine is polishing the tray caps on the inside, the tray caps on the outside are still being polished, so that the polishing time of the tray on the inside is shorter, resulting in inconsistent polishing accuracy of the trays on the inside and outside. By placing the four panels on the outside of the base plate, the working path between the working end of the polishing machine and the tray to be polished can be reduced, the processing accuracy of the tray can be improved, and the work efficiency is greatly improved.

[0023] The upper panel 21 is provided with upper through holes 200 corresponding to each connecting hole for the card plate of the card holder to pass through, and a protective cover that matches the upper through holes 200 and can be tightly fitted on the outside of the card holder card plate is detachably installed in the upper through holes 200, and the hollow space of the protective cover is the above-mentioned upper accommodating groove; specifically, the protective cover is a silicone part, and the protective cover is two card blocks arranged laterally at intervals along the length extension direction of the card cap, the card block is a hollow structure with one end open, and the opposite sides of the two card blocks are open structures, the card block has an upper limit portion 3 and a lower limit portion 4, the upper limit portion 3 has an upper straight plate 31 and an upper curved plate 32, two upper straight plates 31 are provided, the two upper straight plates 31 are arranged in parallel and at intervals along the front-to-back direction, and one end of the two upper straight plates 31 is connected by an upper curved plate 32, the upper curved plate 32 is a semicircular structure, and the lower limit portion 4 has a lower The inclined plate 41 and the lower curved plate 42, the lower inclined plates 41 are provided with two, the lower inclined plates 41 are correspondingly located below the upper straight plate 31, and the two lower inclined plates 41 form a horn structure that gradually expands from top to bottom, the upper curved plate 32 is located below the lower curved plate 42, and the lower curved plate 42 is a semi-arc horn structure that gradually expands from top to bottom, the lower limit portion 4 is embedded in the upper through hole 200, and the card extends downward outside the lower limit portion 4, the upper limit portion 3 is limited in the upper part of the upper plate 21 by the limiting strip 5, and the card cap is superimposed on the top surface of the upper limit portion 3 and the limiting strip 5, the upper curved plate 32 is clamped on the outer side wall of the lower end of the card, the two upper straight plates 31, the upper curved plate 32, the two lower inclined plates 41 and the lower curved plate 42 form a through groove that penetrates along the up and down direction and is open on one side, and the two opposite through grooves constitute the above-mentioned upper accommodating groove. During assembly, the upper limit portion 3 of each protective cover is passed through the upper through hole 200 of the upper panel 21 and limited in the limiting strip 5 until the lower limit portion 62 of the protective cover is limited in the upper through hole 200 by the speaker structure, and the installation of the protective cover is completed. Finally, the upper panel 21 is locked in the upper installation groove and the card holder can be inserted into the upper accommodating groove. At the same time, the protective cover is a silicone part, which can protect the card holder when the card holder moves up and down and will not scratch the card holder.

[0024] The bottom panel 22 is provided with a strip hole 300 extending along the length direction of the bottom accommodating groove row and for the card plate to pass through, and a soft limit strip 6 is respectively provided on both sides of the length direction of the strip hole 300, one side of which falls into the range of the strip hole 300 and the other side is outside the range of the strip hole 300. Each soft limit strip 6 is clamped between the bottom of the lower mounting groove and the bottom panel 22, and is aligned with the limit groove on the card plate in the strip hole 300, and the spacing between two adjacent soft limit strips 6 is less than the width of the card tray card plate and greater than the spacing between the two limit grooves on the card tray; specifically, the soft limit strip 6 is a silicone part, and the soft limit strip 6 has a mounting portion 61 and a limiting portion 62, the mounting portion 61 is arranged perpendicular to the limiting portion 62, and the limiting portion 62 is on the side of the mounting portion 61 facing the center position of the strip hole 300, the mounting portion 61 is limited on the bottom panel 22, and the limiting portion 62 faces the strip hole 300. The center position of the hole 300 extends and extends into the limiting groove of the card plate, and the top surfaces of the mounting portion 61 and the limiting portion 62 are both flat on the bottom of the lower mounting groove, that is, the lower panel 22 has a plurality of mounting strips arranged at intervals along the left and right directions and extending along the front and rear directions, and the front and rear ends of each mounting strip are connected by a connecting strip, and the outer side walls of the two connecting strips facing away from each other are convexly provided with the above-mentioned second locking plate 221 locked on the bottom plate 1, and the above-mentioned strip-shaped hole 300 is surrounded by the connecting strips. The top surface of the mounting strip is concavely provided with an embedding groove for the mounting portion 61 to be embedded therein, and the two mounting portions of the two soft limiting strips 6 between the two strip-shaped holes 300 share an embedding groove, and the limiting portion 62 is partially overlapped on the top surface of the mounting strip and partially extends into the strip hole 300 with its back to the mounting portion 61, and the spacing between the two opposing limiting portions is less than the maximum spacing between the two limiting grooves of the card tray and greater than the minimum spacing between the two limiting grooves of the card tray. During assembly, the mounting portions 61 of the soft limit strips 6 are embedded in the embedding grooves one by one, and then the top surfaces of the soft limit strips 6 are flatly attached to the bottom of the lower mounting grooves. Finally, the lower panel and the bottom plate are locked together to complete the installation of the soft limit strips 6.

[0025] The present invention is a new type of card holder injection polishing fixture. When assembling, each protective cover is limited and installed one by one in the upper through hole of the upper panel 21, and then the upper panel 21 is locked on the bottom plate 1. Then, each soft limit strip 6 is embedded one by one on both sides of the strip hole 300 through the lower panel 22. At this time, the limit part 62 of each soft limit strip 6 extends into the range of the strip hole; when used, the card holder's card plate is inserted downward from the hollow cavity of the protective cover, and the card holder's card plate passes through the lower accommodating groove until the limit part 62 of each soft limit strip 6 extends into the limit groove of the card holder and the card holder's card plate is superimposed on the top surface of the protective cover. The insertion of the card tray is completed. Since the soft limit strip is a silicone part, the card tray can pass over the soft limit strip when moving downward, so that the limit part 62 of the soft limit strip extends into the limit groove without scratching the card tray. At the same time, the protective cover made of silicone can also protect the card tray and will not scratch the card tray when the card tray moves up and down. Compared with the existing technology, the card tray is limited by the soft limit strip 6 part extending into the limit groove of the card tray, so that the card tray is not easy to move up and down, and will not affect the post-processing of the card tray. Moreover, the protective cover can not easily generate friction with the card tray when taking the card tray, thereby making the card tray not easily scratched.

[0026] Preferably, each upper through hole 200 is formed with several rows of upper through hole rows corresponding to the lower accommodating groove rows, and the top surface of the upper panel 21 is provided with several limiting grooves 400 spaced apart in the left and right directions and extending in the front and rear directions at positions corresponding to the positions of the upper through hole rows, and the two inner side walls opposite to each other on the left and right sides of the limiting groove 400 are surrounded by a speaker structure that gradually expands from top to bottom, and the upper through hole row is within the range below the limiting groove 400, and the lower end of the limiting bead 5 is embedded in the limiting groove 400, and the upper end of the limiting bead 5 extends out of the top surface of the upper panel, and the limiting bead 5 is provided with several upper and lower through-sets that are connected to the upper through hole 20 0--A strip-shaped through groove is arranged in an upper and lower position, and the upper limit portion 3 is embedded in the strip-shaped through groove, that is, the outer side wall of the lower inclined plate 41 is convexly provided with a lower protrusion 411, and the inner side wall of the upper through hole 200 is concavely provided with a lower groove 500 for the lower protrusion 411 to be embedded therein at the position corresponding to the lower protrusion, and the outer side wall of the upper straight plate 31 is convexly provided with an upper protrusion 311, and the inner groove wall of the strip-shaped through groove is concavely provided with an upper groove 600 for the upper protrusion 311 to be embedded therein at the position corresponding to the upper protrusion 311; when used, the upper protrusion 311 and the lower protrusion 411 enable the protective cover to be more firmly installed in the upper panel 21.

[0027] The product form of the present utility model is not limited to the illustrations and embodiments of this case. Any appropriate changes or modifications made by anyone with similar ideas should be deemed to be within the patent scope of the present utility model.

Claims

1. A fixture for injection molding and polishing a card tray, comprising a base plate and a face plate. The base plate is provided with a plurality of lower accommodating grooves for the card tray's card trays, which extend vertically out of the base plate. The lower accommodating grooves are arranged in a matrix and each lower accommodating groove is formed with a plurality of rows of lower accommodating grooves, each row of which is spaced apart along the width direction of the card tray within the lower accommodating groove. The face plate is mounted on the base plate, and upper accommodating grooves are recessed at positions corresponding to the lower accommodating grooves on the face plate, extending vertically through the lower accommodating grooves and allowing the card trays to be clamped therein. The following features are provided: The top surface and bottom surface of the above-mentioned base plate are respectively provided with an upper mounting groove and a lower mounting groove, and the bottom of the above-mentioned upper mounting groove is provided with a plurality of communicating holes connected with the lower mounting groove, and the communicating hole is the lower accommodating groove. The above-mentioned panel has an upper panel and a lower panel, the upper panel is installed in the upper mounting groove, and the lower panel is installed in the lower mounting groove, and the upper panel, the lower panel and the base plate are removably connected together, and the above-mentioned upper panel is provided with an upper through hole for the card plate of the card holder to pass through corresponding to each communicating hole, and a retaining clip that matches the upper through hole and can be tightly sleeved on the outside of the card holder card plate is removably installed in the upper through hole. The protective cover, the hollow space of the protective cover is the above-mentioned upper accommodating groove, and the lower panel is located at each lower accommodating groove row and is provided with a strip hole extending along the length direction of the lower accommodating groove row and for the card plate to pass through. Soft limit strips are respectively provided on both sides of the length direction of the strip hole, one side of which falls into the range of the strip hole and the other side is outside the range of the strip hole. Each soft limit strip is clamped between the bottom of the lower mounting groove and the lower panel, and is aligned with the limit groove on the card plate in the strip hole, and the spacing between two adjacent soft limit strips is less than the width of the card tray card plate and greater than the spacing between the two limit groove notches on the card tray.

2. The card holder injection molding and polishing jig according to claim 1, characterized in that: The bottom surface and the top surface of the base plate are both provided with four upper mounting grooves and four lower mounting grooves which are evenly spaced and distributed around the circumference of the base plate. The upper panels are locked in the four upper mounting grooves, and the lower panels are locked in the four lower mounting grooves.

3. The card holder injection molding and polishing jig according to claim 1, characterized in that: The protective cover is composed of two blocks arranged at intervals laterally along the length extension direction of the card cap. The block is a hollow structure with one end open, and the opposite side of the two blocks is an open structure. The block has an upper limit portion and a lower limit portion. The upper limit portion has an upper straight plate and an upper arc plate. There are two upper straight plates. The two upper straight plates are arranged in parallel and at intervals along the front-to-back direction, and one end of the two upper straight plates is connected by an upper arc plate. The upper arc plate is a semicircular structure. The lower limit portion has a lower inclined plate and a lower arc plate. There are two lower inclined plates. The lower inclined plates are correspondingly located below the upper straight plate, and the two lower inclined plates form a circle from top to bottom. The gradually expanding horn structure, the upper arc plate is located below the lower arc plate, and the lower arc plate is a semi-arc horn structure that gradually expands from top to bottom, the lower limit portion is embedded in the upper through hole, and the card plate extends downward from the lower limit portion, the upper limit portion is limited in the upper part of the upper plate by the limiting strip, and the card cap is superimposed on the top surface of the upper limit portion and the top surface of the limiting strip, the upper arc plate is clamped on the outer side wall of the lower end of the card plate, the two upper straight plates, the upper arc plate, the two lower inclined plates and the lower arc plate are surrounded by a through groove that penetrates in the up and down direction and is open on one side, and the two opposite through grooves constitute the above-mentioned upper accommodating groove.

4. The card holder injection molding and polishing jig according to claim 3, characterized in that: Taking the horizontal direction of the card cap as the left and right direction, each upper through hole forms several rows of upper through holes corresponding to the lower accommodating groove rows up and down, and the top surface of the upper panel is recessed with several limiting grooves spaced along the left and right directions and extending along the front and back directions at positions corresponding to the positions of each upper through hole row, and the two inner side walls opposite to each other on the left and right sides of the limiting groove form a horn structure that gradually expands from top to bottom, and the upper through hole row is located below the limiting groove, and the lower end of the limiting pressure strip is embedded in the limiting groove, and the limiting pressure strip is provided with several strip through grooves that are vertically penetrated and aligned with the upper through holes one by one, and the upper limit portion is embedded in the strip through groove.

5. The card holder injection molding and polishing jig according to claim 4, characterized in that: The outer side wall of the lower inclined plate is provided with a lower protrusion, the inner side wall of the upper through hole is provided with a lower groove for the lower protrusion to be embedded in the position corresponding to the lower protrusion, the outer side wall of the upper straight plate is provided with an upper protrusion, and the inner groove wall of the strip-shaped through groove is provided with an upper groove for the upper protrusion to be embedded in the position corresponding to the upper protrusion.

6. The card holder injection molding and polishing jig according to claim 1, characterized in that: The soft limit strip has a mounting portion and a limiting portion. The mounting portion is vertically arranged to the limiting portion, and the limiting portion is located on the side of the mounting portion facing the center position of the strip hole. The mounting portion is limited on the lower panel, and the limiting portion extends toward the center position of the strip hole and extends into the limiting groove of the card plate. The top surfaces of the mounting portion and the limiting portion are both flat on the bottom of the lower mounting groove.

7. The card holder injection molding and polishing jig according to claim 6, characterized in that: The lower panel has a plurality of mounting strips spaced apart in the left-right direction and extending in the front-back direction, the front and rear ends of each mounting strip are connected by a connecting strip, and a locking plate locked on the bottom plate is convexly provided on the opposite side of the two connecting strips, and the above-mentioned strip-shaped holes are formed between the two mounting strips and the connecting strips, and the top surface of the mounting strip is concavely provided with an embedding groove for the mounting part to be embedded therein, and the limiting part is partially overlapped on the top surface of the mounting strip and partially extends into the strip hole facing away from the mounting part.

8. The card holder injection molding and polishing jig according to claim 1, characterized in that: The soft limiting strip and the protective cover are both made of silicone.

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