Positioning structure of IML (in-mold labeling) process injection molding card material

Abstract

The utility model discloses a positioning structure of an IML (in-mold labeling) process injection molding card material, and relates to the technical field of positioning molds. The positioning structure comprises a first mold, a second mold and a cover plate, a clamping groove is formed in the top of the cover plate, a through groove penetrates through the bottom of the clamping groove, a disc is rotationally installed on one side of the top of the cover plate through a rotating shaft, a fixing frame is fixed to the top of the disc, a lead screw is arranged on the inner side of the fixing frame, and two L-shaped connecting plates are arranged on the lead screw in a threaded mode; a U-shaped frame and a second clamping block are fixed to the two L-shaped connecting plates correspondingly, a first clamping block is fixed to the bottom of the U-shaped frame, the first clamping block and the second clamping block are both matched with the clamping groove, a clamping assembly is arranged at the bottom of the first clamping block, and the clamping sheet material can be clamped and positioned conveniently; and the positions of the first clamping block and the second clamping block can be conveniently and flexibly adjusted, and removal of the clamping assembly and blocking of the clamping groove are facilitated.

Description

Technical Field

[0001] The utility model belongs to the technical field of positioning molds, in particular to a positioning structure for an IML process injection molding card material. Background Art

[0002] IML, or in-mold molding, has the following notable features: a hardened transparent film on the surface, a printed pattern layer in the middle, and a plastic layer on the back. The ink sandwiched in the middle prevents the product from being scratched and abrasion-resistant, and maintains its vibrant color for a long time without fading. During injection molding, the IML sheet needs to be positioned to ensure the quality of the finished product.

[0003] Publication No.: CN215703680U, discloses: an IML sheet positioning mold, which drives the first gear to rotate by rotating the turntable, the first gear drives the second gear to rotate, the second gear drives the first threaded rod and the second threaded rod to rotate, the first threaded rod and the second threaded rod rotate to move the first movable plate and the second movable plate, drive the first clamping plate and the second clamping plate to clamp the IML sheet, and then insert the insert block into the insert groove, connect the auxiliary block with the IML sheet to the top cover, and then place the top cover. On the left mold and the right mold, the IML sheet is placed in the inner cavity of the left mold and the right mold, and then the injection liquid is injected from the injection port. When the injection liquid is added, when the IML sheet is stably placed in the inner cavity of the left mold and the right mold, the turntable is rotated to release the first clamping plate and the second clamping plate from the IML sheet, and then the auxiliary block is taken out of the top cover with the first clamping plate and the second clamping plate, and then the push plate is pushed to move with the baffle, and the baffle is used to block the hole after the auxiliary block is removed until the injection is completed and the mold is opened.

[0004] The above-mentioned prior art still has the following shortcomings during the specific implementation process:

[0005] When the IML sheet is stably located in the inner cavity of the left mold and the right mold, the staff needs to manually remove the auxiliary block together with the first clamping plate and the second clamping plate from the top cover, and then push the push plate to drive the baffle to seal the hole after the auxiliary block is removed. The operation is relatively cumbersome and affects the injection molding efficiency. In addition, the separate design of the auxiliary block and the top cover can easily lead to the loss of components such as the auxiliary block, affecting the use of the injection molding operation.

[0006] In response to the above problems, we proposed a positioning structure for IML process injection molding card materials. Utility Model Content

[0007] Technical Solution

[0008] In order to solve the above technical problems, the utility model provides a positioning structure for IML process injection molding card material, including a first mold, a second mold and a cover plate, the cover plate is fixed to the first mold and the second mold by a plurality of bolts, the top of the cover plate is provided with a slot, the bottom of the slot is penetrated by a through slot, a disc is rotatably installed on one side of the top of the cover plate through a rotating shaft, a fixing frame is fixed on the top of the disc, a screw rod is provided on the inner side of the fixing frame, two L-connecting plates are threaded on the screw rod, a U-shaped frame and a second clamping block are respectively fixed on the downward ends of the two L-connecting plates, a first clamping block is fixed to the bottom of the U-shaped frame, the first clamping block and the second clamping block are both matched with the slot, a clamping assembly is provided on the first clamping block, a plurality of positioning grooves are provided on the top of the cover plate, and a positioning piece is provided on the disc to match the positioning groove.

[0009] The clamping assembly includes a screw, a rectangular plate and a clamping block. The screw is arranged on the inner side of the U-shaped frame. The two rectangular plates are threaded on the screw. A rectangular groove passes through the first clamping block. The rectangular plate and the rectangular groove cooperate with each other. The clamping block is fixed to the bottom of the rectangular plate.

[0010] A blocking block is fixed at the bottom of the second clamping block, and the blocking block cooperates with the through slot.

[0011] The positioning member includes a positioning block, a piston rod, a spring, a movable plate and a pull ring. The piston rod is movably matched with the disc, the lower end of the piston rod is fixedly connected to the movable plate, the positioning block is fixed to the bottom of the movable plate, and the positioning block and the positioning groove cooperate with each other. The spring is connected between the top of the movable plate and the disc, and the spring is sleeved on the outside of the piston rod. The pull ring is fixed to the top of the piston rod.

[0012] A knob is rotatably provided on one side of the U-shaped frame, and the knob is connected to one end of the screw rod. A support rod is fixed inside the rectangular groove, and the support rod passes through the rectangular plate. The rectangular plate and the support rod are slidably matched, and the thread directions of the center threaded holes of the two rectangular plates are opposite.

[0013] A guide rod is provided on one side of the screw rod, and the guide rod passes through the L-connecting plate, and the L-connecting plate and the guide rod are slidably matched. The threaded directions of the threaded holes on the two L-connecting plates are opposite. A motor is installed on the top of the fixing frame, and the output end of the motor is connected to the upper end of the screw rod.

[0014] The first mold surface is provided with a plurality of L-shaped embedding grooves, the second mold surface is fixed with a plurality of L-shaped embedding blocks, the embedding blocks and the embedding grooves cooperate with each other, and the cover plate is provided with an injection port.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] The utility model facilitates the fixed connection of the first mold, the second mold and the cover plate by means of a plurality of bolts between the cover plate and the first mold and the second mold. The clamping assembly facilitates the clamping of the IML card. The cooperation between the positioning piece and the positioning groove facilitates the fixing of the disc, further ensuring the stability of the IML card.

[0017] At the same time, with the cooperation of the threads of the L-connecting plate and the screw rod, it is convenient to flexibly adjust the two L-connecting plates to approach each other, thereby driving the first clamping block and the second clamping block to move up and down. Combined with the rotation effect of the rotating shaft, it is convenient to adjust the fixing frame to rotate around the rotating shaft, thereby achieving the purpose of adjusting the first clamping block and the second clamping block to rotate synchronously around the rotating shaft, conveniently driving the first clamping block away from the slot, thereby driving the clamping assembly away from the slot, and at the same time driving the second clamping block close to the slot and blocking the slot, facilitating the continued implementation of the injection molding operation, solving the problem in the prior art that when the IML sheet is stably located in the inner cavity of the left mold and the right mold, the staff needs to manually remove the auxiliary block together with the first clamping plate and the second clamping plate from the top cover, and then push the push plate to drive the baffle to block the hole after the auxiliary block is removed. The operation is relatively cumbersome and affects the injection molding efficiency. At the same time, it solves the problem that the separate design of the auxiliary block and the top cover in the prior art is easy to cause the auxiliary block and other components to be lost, affecting the use of the injection molding operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 for Figure 1 Schematic diagram of the enlarged structure at C in the middle

[0020] Figure 3 This is a schematic diagram of the structure of the utility model in use;

[0021] Figure 4 for Figure 3 A top view of

[0022] Figure 5 for Figure 4 Structural diagram of the middle section AA;

[0023] Figure 6 for Figure 4 Schematic diagram of the structure of the middle section BB;

[0024] Figure 7 for Figure 5 Schematic diagram of the enlarged structure at D in the middle;

[0025] Figure 8 for Figure 6 Schematic diagram of the enlarged structure at E in the middle.

[0026] The marks in the accompanying drawings are: 1. first mold; 2. second mold; 3. cover plate; 4. slot; 5. through slot; 6. disc; 7. fixing frame; 8. screw rod; 9. L-connecting plate; 10. first clamping block; 11. U-shaped frame; 12. screw rod; 13. rectangular slot; 14. rectangular plate; 15. clamping block; 16. second clamping block; 17. blocking block; 18. positioning slot; 19. positioning block; 20. piston rod; 21. spring; 22. movable plate; 23. support rod; 24. injection port; 25. motor. DETAILED DESCRIPTION

[0027] This specific embodiment is a positioning structure of IML process injection molding card material, such as Figures 1-8 As shown, the positioning structure of the IML process injection molding card material includes a first mold 1, a second mold 2 and a cover plate 3. The cover plate 3 is fixed to the first mold 1 and the second mold 2 by a number of bolts. A card slot 4 is provided on the top of the cover plate 3, and a through slot 5 is passed through the bottom of the card slot 4. A disc 6 is rotatably installed on one side of the top of the cover plate 3 through a rotating shaft. A fixing frame 7 is fixed on the top of the disc 6, and a screw rod 8 is provided on the inner side of the fixing frame 7. Two L-connecting plates 9 are threadedly provided on the screw rod 8. A U-shaped frame 11 and a second clamping block 16 are respectively fixed on the downward ends of the two L-connecting plates 9. A first clamping block 10 is fixed to the bottom of the U-shaped frame 11. The first clamping block 10 and the second clamping block 16 are both matched with the card slot 4. A clamping assembly is provided on the first clamping block 10. A number of positioning grooves 18 are provided on the top of the cover plate 3, and a positioning piece is provided on the disc 6 to match the positioning groove 18.

[0028] The first mold 1, the second mold 2 and the cover plate 3 are conveniently fixed together by a number of bolts between the cover plate 3 and the first mold 1 and the second mold 2. Under the action of the clamping assembly, the IML card is conveniently clamped. Under the mutual cooperation of the positioning member and the positioning groove 18, the disc 6 is conveniently fixed, further ensuring the stability of the IML card. At the same time, under the threaded cooperation of the L connecting plate 9 and the screw rod 8, it is convenient to flexibly adjust the two L connecting plates 9 to be close to each other, thereby driving the first card block 10 and the second card block 16 to move up and down. Combined with the rotation of the shaft, it is convenient to adjust the fixing frame 7 to rotate around the shaft, thereby adjusting the first card block 10 and the second card block 16 around the shaft. The purpose of the synchronous rotation of the shaft is to facilitate driving the first clamping block 10 away from the clamping slot 4, and then driving the clamping assembly away from the clamping slot 4, while driving the second clamping block 16 close to the clamping slot 4 and sealing the clamping slot 4, so as to facilitate the continuation of the injection molding operation. It solves the problem in the prior art that when the IML sheet is stably located in the inner cavity of the left mold and the right mold, the staff needs to manually remove the auxiliary block together with the first clamping plate and the second clamping plate from the top cover, and then push the push plate to drive the baffle to seal the hole after the auxiliary block is removed. The operation is cumbersome and affects the injection molding efficiency. At the same time, it solves the problem in the prior art that the auxiliary block and the top cover are designed separately, which easily leads to the loss of components such as the auxiliary block, affecting the use of the injection molding operation.

[0029] The clamping assembly includes a screw 12, a rectangular plate 14 and a clamping block 15. The screw 12 is arranged on the inner side of the U-shaped frame 11. The two rectangular plates 14 are both threaded on the screw 12. A rectangular groove 13 passes through the first clamping block 10. The rectangular plate 14 and the rectangular groove 13 cooperate with each other, and the clamping block 15 is fixed to the bottom of the rectangular plate 14.

[0030] A blocking block 17 is fixed at the bottom of the second clamping block 16 . The blocking block 17 cooperates with the through slot 5 to further ensure the blocking effect of the second clamping block 16 on the clamping slot 4 .

[0031] The positioning part includes a positioning block 19, a piston rod 20, a spring 21, a movable plate 22 and a pull ring. The piston rod 20 is movably matched with the disc 6, and the lower end of the piston rod 20 is fixedly connected to the movable plate 22. The positioning block 19 is fixed to the bottom of the movable plate 22, and the positioning block 19 and the positioning groove 18 cooperate with each other. The spring 21 is connected between the top of the movable plate 22 and the disc 6, and the spring 21 is sleeved on the outside of the piston rod 20, and the pull ring is fixed to the top of the piston rod 20.

[0032] A knob is rotatably provided on one side of the U-shaped frame 11, and the knob is connected to one end of the screw 12. A support rod 23 is fixed inside the rectangular groove 13, and the support rod 23 passes through the rectangular plate 14. The rectangular plate 14 and the support rod 23 slide together, effectively limiting and guiding the rectangular plate 14, ensuring the stability of the rectangular plate 14 during movement. The thread directions of the center threaded holes of the two rectangular plates 14 are opposite.

[0033] A guide rod is provided on one side of the screw rod 8, which passes through the L-connecting plate 9, and the L-connecting plate 9 slides with the guide rod, which effectively plays a limiting and guiding role for the L-connecting plate 9, ensuring the stability of the L-connecting plate 9 during the up and down movement along the screw rod 8. The threaded directions of the threaded holes on the two L-connecting plates 9 are opposite. A motor 25 is installed on the top of the fixed frame 7, and the output end of the motor 25 is connected to the upper end of the screw rod 8.

[0034] The surface of the first mold 1 is provided with a plurality of L-shaped embedding grooves, and the surface of the second mold 2 is fixed with a plurality of L-shaped embedding blocks. The embedding blocks and embedding grooves cooperate with each other to facilitate the connection between the first mold 1 and the second mold 2. An injection port 24 is provided on the cover plate 3.

[0035] Example:

[0036] When in use, first, the first mold 1 and the second mold 2 are connected together by inserting the insert block on the second mold 2 into the insert groove on the first mold 1. Then, the IML sheet is placed between the two clamping blocks 15, and the knob is turned to drive the screw 12 to rotate. Under the threaded cooperation between the rectangular plate 14 and the screw 12, combined with the movable cooperation between the rectangular plate 14, the rectangular groove 13 and the support rod 23, the two rectangular plates 14 are driven to move stably closer to each other, and then the two clamping blocks 15 are driven to move stably closer to each other until they come into contact with the IML sheet, thereby achieving the purpose of clamping the IML sheet by using the two clamping blocks 15;

[0037] Next, the motor 25 is started, and the screw rod 8 is driven by the motor 25 to rotate. Under the threaded cooperation between the L-connecting plate 9 and the screw rod 8, combined with the sliding cooperation between the L-connecting plate 9 and the guide rod, the two L-connecting plates 9 are driven to move away from each other. The upper L-connecting plate 9 drives the second clamping block 16 upward away from the cover plate 3, and the lower L-connecting plate 9 drives the U-shaped frame 11 to move downward, thereby driving the first clamping block 10 to approach the card slot 4 until the first clamping block 10 is clamped into the card slot 4. At the same time, the IML card clamped by the two clamping blocks 15 is driven to pass through the through slot 5 and be placed in the inner cavity of the first mold 1 and the second mold 2. Then, the injection liquid is injected from the injection port 24.

[0038] When adding the injection liquid, when the IML sheet is stably stored in the inner cavity of the first mold 1 and the second mold 2, the knob is rotated in the opposite direction so that the two clamping blocks 15 move away from each other and release the clamping of the IML card;

[0039] Then the driving motor 25 rotates in the opposite direction, driving the two L-shaped connecting plates 9 to move closer to each other, and driving the U-shaped frame 11 to move upward through the lower L-shaped connecting plate 9, thereby driving the first clamping block 10 and the clamping assembly to move upward and away from the clamping slot 4;

[0040] When the clamping block 15 moves up to the upper side of the cover plate 3, the motor 25 is turned off, the pull ring is pulled upward, and under the action of the piston rod 20, the movable plate 22 is driven to press the spring 21 upward until the positioning block 19 is driven to disengage from the corresponding positioning groove 18 upward. At this time, under the rotation of the rotating shaft, the adjusting disc 6 rotates 180 degrees, driving the second clamping block 16 to rotate to the upper side of the clamping groove 4. At this time, the pull ring is released, and under the elastic action of the spring 21, the movable plate 22 is pressed downward, thereby driving the positioning block 19 downward to insert into the rear positioning groove 18, thereby limiting and fixing the disc 6;

[0041] At this time, continue to start the motor 25, and the motor 25 drives the screw rod 8 to continue to rotate, driving the two L-connecting plates 9 to continue to approach each other, and move downward through the upper L-connecting plate 9 until the second clamping block 16 is moved down and inserted into the slot 4, and drives the blocking block 17 to be inserted into the through slot 5, thereby achieving the purpose of sealing the through slot 5, until the injection molding is completed and the mold is opened.

[0042] Compared with the prior art, the present invention drives the clamping block 15 and the IML card held therein to move downward into the inner cavities of the first mold 1 and the second mold 2 through the cooperation between the screw rod 8 and the L-connecting plate 9. When the injection molding liquid is injected to stabilize the IML card in the inner cavities of the first mold 1 and the second mold 2, the first clamping block 10 and the clamping assembly are adjusted to move upward and out of the inner cavities of the first mold 1 and the second mold 2.

[0043] Then, under the cooperation of the positioning piece and the disc 6, the disc 6 is adjusted to rotate, so that the first clamping block 10 rotates in the direction away from the card slot 4, and at the same time drives the second clamping block 16 to rotate in the direction close to the card slot 4, cooperates with the screw rod 8 and the L connecting plate 9, drives the second clamping block 16 to move down, and combines with the blocking block 17 to block the card slot 4 and the through slot 5, which is convenient for injection molding. This solves the problem in the prior art that when the IML sheet is stably located in the inner cavity of the left mold and the right mold, the staff needs to manually remove the auxiliary block together with the first splint and the second splint from the top cover, and then push the push plate to drive the baffle to seal the hole after the auxiliary block is removed. The operation is relatively cumbersome, which affects the efficiency of injection molding. At the same time, it solves the problem that the separate design of the auxiliary block and the top cover in the prior art is easy to cause the auxiliary block and other components to be lost, etc., which affects the use of injection molding operations.

[0044] It should be further explained that the installation structure, connection method or setting method of each component in the present invention are all common mechanical methods, and they can be implemented as long as they can achieve their beneficial effects. At the same time, the motor 25 in the present invention is purchased on the market, and technical personnel in this field can install and use it according to requirements.

[0045] All technical features in this embodiment can be freely combined according to actual needs.

[0046] The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments do not describe all details in detail, nor do they limit the present invention to the specific embodiments described. Obviously, many modifications and variations are possible based on the contents of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A positioning structure for an IML process injection molding card material, comprising a first mold (1), a second mold (2) and a cover plate (3), wherein the cover plate (3) is fixed to the first mold (1) and the second mold (2) by a plurality of bolts, and is characterized in that: A card slot (4) is provided on the top of the cover plate (3), and a through slot (5) is passed through the bottom of the card slot (4). A disc (6) is rotatably mounted on one side of the top of the cover plate (3) through a rotating shaft. A fixing frame (7) is fixed on the top of the disc (6). A screw rod (8) is provided on the inner side of the fixing frame (7). Two L-shaped connecting plates (9) are threadedly provided on the screw rod (8). A U-shaped frame (11) and a second card block (16) are fixed on the downward ends of the two L-shaped connecting plates (9). A first card block (10) is fixed on the bottom of the U-shaped frame (11). The first card block (10) and the second card block (16) are both matched with the card slot (4). A clamping assembly is provided on the first card block (10). A plurality of positioning grooves (18) are provided on the top of the cover plate (3), and a positioning piece is provided on the disc (6) to match with the positioning groove (18).

2. The positioning structure of the IML process injection molding card material according to claim 1 is characterized in that: The clamping assembly comprises a screw (12), a rectangular plate (14) and a clamping block (15); the screw (12) is arranged on the inner side of the U-shaped frame (11); the two rectangular plates (14) are both threadedly arranged on the screw (12); a rectangular groove (13) is passed through the first clamping block (10); the rectangular plate (14) and the rectangular groove (13) cooperate with each other; and the clamping block (15) is fixed to the bottom of the rectangular plate (14).

3. The positioning structure of the IML process injection molding card material according to claim 2, characterized in that: A blocking block (17) is fixed to the bottom of the second clamping block (16), and the blocking block (17) cooperates with the through slot (5).

4. The positioning structure of the IML injection molding card material according to claim 3, characterized in that: The positioning member includes a positioning block (19), a piston rod (20), a spring (21), a movable plate (22) and a pull ring. The piston rod (20) is movably matched with the disc (6). The lower end of the piston rod (20) is fixedly connected to the movable plate (22). The positioning block (19) is fixed to the bottom of the movable plate (22), and the positioning block (19) and the positioning groove (18) are matched with each other. The spring (21) is connected between the top of the movable plate (22) and the disc (6), and the spring (21) is sleeved on the outside of the piston rod (20). The pull ring is fixed to the top of the piston rod (20).

5. The positioning structure of the IML injection molding card material according to claim 4, characterized in that: A knob is rotatably provided on one side of the U-shaped frame (11), and the knob is connected to one end of the screw rod (12). A support rod (23) is fixed inside the rectangular groove (13), and the support rod (23) passes through the rectangular plate (14). The rectangular plate (14) and the support rod (23) are slidably matched, and the thread directions of the central threaded holes of the two rectangular plates (14) are opposite.

6. The positioning structure of the IML injection molding card material according to claim 5, characterized in that: A guide rod is provided on one side of the screw rod (8), and the guide rod passes through the L-type connecting plate (9). The L-type connecting plate (9) and the guide rod are slidably matched. The threaded holes on the two L-type connecting plates (9) have opposite thread directions. A motor (25) is installed on the top of the fixing frame (7), and the output end of the motor (25) is connected to the upper end of the screw rod (8).

7. The positioning structure of the IML injection molding card material according to claim 6, characterized in that: The surface of the first mold (1) is provided with a plurality of L-shaped embedding grooves, the surface of the second mold (2) is fixed with a plurality of L-shaped embedding blocks, the embedding blocks and the embedding grooves cooperate with each other, and the cover plate (3) is provided with an injection port (24).

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