A glue removing and folding mechanism for a double injection molding system

Abstract

The application discloses a glue-removing and folding mechanism for a double-injection system and belongs to the technical field of integrated circuit packaging and testing. The glue-removing and folding mechanism for the double-injection system comprises a male die structure and a female die structure. The glue-removing and folding mechanism can make the product frame be clamped by the gasket component and the female die component in the female die structure through the up-down movement of the female die structure, and the glue-removing and folding of the product in the double-injection system can be realized through the rotation of the rotating block, the female die component, the mounting plate body and the gasket component and the cooperation of the fixed push plate component.

Description

Technical Field

[0001] This invention belongs to the field of integrated circuit packaging and testing technology, and specifically relates to a glue removal and folding mechanism for a dual injection molding system. Background Technology

[0002] Packaging and testing are crucial steps in the integrated circuit manufacturing process. Dual injection molding systems can produce four lead frames in a single molding process, doubling the production efficiency of traditional molding systems and significantly improving overall efficiency. While conventional products are typically de-adhesive-removed by blade cutting, products such as QFN, DFN, and TO247 lack flow channels and cannot be de-adhesive-removed by blade cutting, leaving a gap in the product de-adhesive removal process. Summary of the Invention

[0003] The purpose of this invention is to provide a glue removal and folding mechanism for a dual injection molding system, so as to solve the problem mentioned in the background art that some existing products cannot remove glue.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a glue removal and folding mechanism for a dual injection molding system, comprising:

[0005] A punch structure configured to be linearly movable along a third direction, comprising a base plate member, a top plate member, and two mounting plates sequentially arranged in the third direction, the top plate member connecting the base plate member and the mounting plates, the base plate member being configured to be linearly movable along the third direction, and the two mounting plates being spaced apart in a second direction; the punch structure further comprises:

[0006] Two mounting blocks are respectively fixed to both ends of the top plate component in the first direction. The mounting plate is configured to rotate relative to the mounting blocks, and the rotation axis of the mounting plate is parallel to the first direction.

[0007] Two locking blocks are respectively fixed to the outer ends of the two mounting blocks in the first direction;

[0008] Two pad components are respectively fixed to the bottom surfaces of the two mounting plates;

[0009] A push plate component is located between the two mounting plates in the second direction and is connected to the top plate component;

[0010] The folding mechanism further includes:

[0011] The die structure includes two rotating structures spaced apart in the second direction, each rotating structure comprising:

[0012] The two support blocks are spaced apart in the first direction;

[0013] Two rotating blocks, each rotating block having a first end rotatably connected to the supporting block and a second end capable of rotating around the first end;

[0014] A support plate is mounted on the rotating block;

[0015] The die component is fixedly installed on the top surface of the support plate.

[0016] Preferably, the punch structure further includes a rotating block assembled between the mounting plate and the mounting block, the rotating block being rotatably mounted on the mounting block and connected to the mounting plate.

[0017] Preferably, the mounting plate and the top plate component are connected by two first tension springs spaced apart in a first direction, and both the mounting plate and the top plate component are provided with a first mounting seat for mounting the first tension spring.

[0018] Preferably, the top plate component and the base plate component are connected by two first linear structures spaced apart in a first direction, the first linear structure comprising:

[0019] A first spring is disposed between the top plate component and the base plate component along a third direction;

[0020] A first linear bearing is mounted on the top plate component;

[0021] The first guide shaft has one end mounted on the base plate component and the other end extending in a third direction and passing through the top plate component and the first linear bearing in sequence.

[0022] Preferably, the top plate component and the push plate component are connected by two connecting components spaced apart in a first direction, the connecting components comprising:

[0023] A pad component is installed on the ceiling component;

[0024] The guide post component has one end mounted on the pad component and the other end extending in a third direction and connected to the push plate component.

[0025] Preferably, the connection component further includes:

[0026] A second spring is disposed between the top plate component and the push plate component, and a groove for accommodating the second spring is formed on the push plate component;

[0027] Auxiliary blocks are installed on the ceiling panel component;

[0028] A limiting screw, one end of which passes through the auxiliary block and the top plate component in sequence and extends into the second spring.

[0029] Preferably, the die structure further includes:

[0030] A second tension spring, the two ends of which are respectively connected to the rotating block and the supporting block, and the connection position between the second tension spring and the rotating block is adjacent to the second end of the rotating block;

[0031] A limiting structure is installed on the support block and configured to limit the rotation of the rotating block when it rotates to a horizontal position.

[0032] Preferably, the upward folding mechanism further includes a downward pressing component, the downward pressing component comprising:

[0033] A fixed plate is positioned above the punch structure in a third-dimensional orientation and is fixedly installed.

[0034] The first driving component is mounted on the fixed plate.

[0035] A pressure plate component is installed at the output end of the first driving component and configured to move linearly along a third direction under the action of the first driving component, and the pressure plate component and the base plate component are fixedly connected.

[0036] Preferably, the pressing component further includes a second linear structure, the second linear structure comprising:

[0037] A second linear bearing is mounted on the fixed plate.

[0038] The second guide shaft is connected at one end to the pressure plate member and is configured to slide within the second linear bearing.

[0039] Preferably, the folding mechanism further includes a bending component, the bending component comprising:

[0040] The second driving component is positioned above and fixed to the die structure in a third-order orientation;

[0041] The lifting plate is configured to move linearly along a third direction under the action of the second driving component;

[0042] The connecting plate is located below the lifting plate in a third-order orientation.

[0043] At least one lifting shaft is provided along a third direction, and both ends of the lifting shaft are respectively connected to the lifting plate and the connecting plate;

[0044] At least two tie rod components are spaced apart along the second direction, and roller bearings are provided at corresponding positions at the second end of the rotating block in the rotating unit.

[0045] Compared with the prior art, the beneficial effects of the present invention are:

[0046] This application designs an upward folding mechanism consisting mainly of a punch structure and a die structure. Based on the up-and-down movement of the die structure, the pad component and the die component in the die structure can cooperate to clamp the product frame. By rotating the block, the die component, the mounting plate and the pad component, and cooperating with the fixed-position push plate component, the upward folding of the product in the dual injection molding system can be realized, so as to realize the glue removal and upward folding operation of the product. Attached Figure Description

[0047] Figure 1 This is a schematic diagram showing the overall disassembly of the folding mechanism;

[0048] Figure 2 This is a schematic diagram of the overall switching components;

[0049] Figure 3 Schematic diagram of punch structure Figure 1 ;

[0050] Figure 4 Schematic diagram of punch structure Figure 2 ;

[0051] Figure 5 This is a schematic diagram of the die structure;

[0052] Figure 6 Schematic diagram of the pressure-down component Figure 1 ;

[0053] Figure 7 Schematic diagram of the pressure-down component Figure 2 ;

[0054] Figure 8 Illustration of bending components Figure 1 ;

[0055] Figure 9 Illustration of bending components Figure 2 .

[0056] In the picture:

[0057] 10. Downward pressure assembly;

[0058] 100. Fixed plate; 101. First driving component; 102. Pressure plate component; 103. Slide component; 104. Limiting plate; 105. Second linear structure; 106. Second guide shaft; 107. Second linear bearing;

[0059] 20. Bending components;

[0060] 200. Second drive component; 201. Lifting plate; 202. Lifting shaft; 203. Connecting plate; 204. Tie rod component; 205. Roller bearing; 206. Third linear bearing;

[0061] 30. Switching components;

[0062] 300. Punch structure; 301. Base plate component; 302. Top plate component; 303. Mounting plate; 304. Pad plate component; 305. Mounting block; 306. Rotating block; 307. Push plate component; 308. Locking block;

[0063] 310. Die structure; 311. Base plate component; 312. Rotating unit; 313. Support block; 314. Rotating block; 314a. First end; 314b. Second end; 314c. Flange structure; 315. Support plate; 316. Die component;

[0064] 320. First linear structure; 321. Shim component; 322. First spring; 323. First guide shaft; 324. First linear bearing;

[0065] 330, First tension spring; 331, First mounting base;

[0066] 340. Guide post component; 341. Pad component; 342. Second spring; 343. Auxiliary block; 344. Limiting screw;

[0067] 350. Second tension spring; 351. Second mounting base;

[0068] 40. Assemble the panel. Detailed Implementation

[0069] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0070] A glue removal and folding mechanism (hereinafter referred to as the folding mechanism) for a dual injection molding system, with reference to Figure 1 The main body consists of a pressing assembly 10, a bending assembly 20, and an exchange assembly 30. The exchange assembly 30 includes a punch structure 300 and a die structure 310. The punch structure 300 can move linearly in the vertical direction under the action of the pressing assembly 10 to cooperate with the die structure 310 to complete the product bending operation. In the following description, the position is described as follows: Figure 1 The directions of the coordinate system are used as the reference for explanation, and the X, Y and Z axes in the figure are respectively denoted as the first direction, the second direction and the third direction.

[0071] Reference Figure 3 and 4 This is a structural schematic diagram of the punch structure 300, combined with... Figure 2The aforementioned punch structure 300 includes a base plate member 301, a top plate member 302, and two mounting plates 303 arranged sequentially from top to bottom. Specifically, the top plate member 302 is disposed between the base plate member 301 and the mounting plates 303 in a third direction. The base plate member 301 is connected to the top plate member 302 and configured to move linearly along the third direction. In some embodiments, the base plate member 301 and the top plate member 302 are connected by two first linear structures 320 arranged at intervals in a first direction. Based on these first linear structures 320, the base plate member 301 can remain stable during linear movement along the third direction. For example, the first linear structure 320... The system includes a gasket member 321, a first spring 322, a first guide shaft 323, and a first linear bearing 324. The gasket member 321 is fixed to the bottom surface of the base plate member 301. The first spring 322 is disposed between the gasket member 321 and the top plate member 302 and is configured to be compressed during the downward movement of the base plate member 301. The linear bearing is mounted on the top plate member 302. Correspondingly, one end of the guide shaft is fixed to the base plate member 301, and the other end extends along a third direction and passes through the linear bearing. Based on the linear bearing, the movement of the guide shaft in the horizontal direction can be limited to improve the stability of the linear movement of the base plate member 301 in the third direction.

[0072] Continue to refer to Figure 3 and 4 and combined Figure 2 The two mounting plates 303 are spaced apart in the second direction. The punch structure 300 also includes two pad members 304 respectively mounted on the bottom surfaces of the two mounting plates 303. In some examples, the pad members 304 are fixed to the mounting plates 303 by screws or other fasteners. Figure 3 In some embodiments, a single mounting plate 303 is connected to the top plate component 302 by two first tension springs 330 spaced apart in a first direction. Specifically, the top plate component 302 and the mounting plate 303 are respectively provided with first mounting seats 331 for mounting the first tension springs 330, so as to realize the mounting of the first tension springs 330.

[0073] Continue to refer to Figure 3 and 4The aforementioned punch structure 300 further includes two mounting blocks 305 fixed to both ends of the bottom surface of the top plate component 302 in the first direction, and a rotating block 306 is provided between the two mounting blocks 305 and the single mounting plate 303. Specifically, the mounting blocks 305 and the rotating blocks 306 can be rotatably connected by pins or the like, and the rotating block 306 has a part that contacts the mounting plate 303 so that the mounting plate 303 can rotate synchronously with the rotating block 306. Furthermore, the mounting blocks 305 are provided with limiting pins to limit the rotation of the rotating block 306 so that the mounting plate 303 is held in the horizontal direction.

[0074] Reference Figure 4 The aforementioned punch structure 300 further includes a pusher plate component 307, which is disposed below the mounting plate 303 in a third direction and connected to the aforementioned top plate component 302 via two connecting components spaced apart in a first direction. In some embodiments, the connecting components include a guide post structure and an elastic structure. The guide post structure includes a guide post component 340 and a pad component 341. The pad component 341 is fixed to the upper surface of the top plate component 302. One end of the guide post component 340 is fitted onto the pad component 341, and the other end passes through the pad component 341 and the top plate component 302 before connecting to the pusher plate component 307. The elastic structure includes... The system includes a second spring 342 assembled between the top plate component 302 and the push plate component 307. In some examples, the push plate component 307 is provided with a groove to accommodate the second spring 342, so that one end of the second spring 342 can be inserted into the push plate component 307 to complete the installation. Furthermore, the above-mentioned elastic structure also includes an auxiliary block 343 and a limiting screw 344. The auxiliary block 343 is assembled to the top plate component 302 by fasteners such as bolts. One end of the limiting screw 344 passes through the auxiliary block 343 and the top plate component 302 and extends into the spring. Under normal conditions, the push plate component 307 can remain stable under the elastic force of the spring.

[0075] Reference Figure 5 This is a schematic diagram of the die structure 310, combined with... Figure 2 The concave mold structure 310 includes a base plate component 311 and two rotating structures. The two rotating structures are assembled on the base plate component 311 and spaced apart in the second direction, i.e., a gap is formed between the two rotating structures. Correspondingly, the above-mentioned punch structure 300 also includes two locking blocks 308 fixed to both ends of the top plate component 302 in the first direction. Each locking block 308 is configured to be able to partially insert into the gap between the two rotating structures and to move synchronously while the punch structure 300 moves linearly along the third direction as a whole.

[0076] Reference Figure 2 and 5The aforementioned rotating structure comprises two rotating units 312 spaced apart in a first direction. Each rotating unit 312 includes two supporting blocks 313 and two rotating blocks 314. The two supporting blocks 313 are spaced apart in the first direction, and the rotating blocks 314 are mounted on the supporting blocks 313. The rotating structure also includes a supporting plate 315 and a die member 316, wherein the die member 316 is assembled on the supporting plate 315. Exemplarily, the die member 316 and the supporting plate 315 can be connected by fasteners such as screws. Figure 2 and 4 The aforementioned rotating block 314 has a first end 314a adjacent to the gap and a second end 314b away from the gap. The rotating block 314 and the supporting block 313 are configured to be rotatably connected, that is, the second end 314b of the rotating block 314 is configured to rotate around the first end 314a. In some examples, the first end 314a of the rotating block 314 and the supporting block 313 are connected by a shaft, the axis of which is parallel to a first direction. In some embodiments, a flange structure 314c is formed on the rotating block 314. The flange structure 314c is configured as a support structure for the supporting plate 315, so that while the rotating block 314 rotates around its first end 314a, it drives the supporting plate 315 and the die member 316 to rotate.

[0077] Back Figure 2 and 5 Continuing with the description of the rotating unit 312, the rotating block 314 is connected to the support block 313 via a second tension spring 350 near the second end 314b. Based on the elastic force of the second tension spring 350, the rotating block 314 can automatically reset after rotating to the set position. In some embodiments, both the rotating block 314 and the support block 313 are provided with a second mounting base 351 for mounting the second tension spring 350. Correspondingly, the support block 313 is provided with a limiting structure (e.g., a limiting pin not shown). Based on this limiting pin, the rotating block 314 can be kept in a horizontal state when not rotating.

[0078] Reference Figure 1 , 6In addition to 7, the aforementioned folding mechanism also includes an assembly plate 40, which serves as the mounting carrier for the aforementioned pressing assembly 10 and bending assembly 20. In some embodiments, the pressing assembly 10 includes a fixed plate 100, a first driving member 101, and a pressure plate member 102. The first driving member 101 is configured as a cylinder or hydraulic cylinder and is mounted on the fixed plate 100. Correspondingly, the fixed plate 100 is fixed to the assembly plate 40 by bolts or other fasteners to achieve the overall installation and fixation of the pressing assembly 10. Meanwhile, the pressure plate member 102 is connected to the output end of the first driving member 101 and is configured to move linearly along a third direction under the action of the first driving member 101. At the same time, the pressure plate member 102 is connected to the base plate member 301 of the aforementioned punch structure 300 to allow the first driving member to move linearly along a third direction. 101 drives the pressure plate component 102, the base plate component 301, and the punch structure 300 to move linearly along a third direction. In some embodiments, the base plate component 301 in the punch structure 300 is installed by slide components 103 installed at both ends of the pressure plate component 102 in the first direction, and is limited by limiting plates 104 installed at both ends of the pressure plate component 102 in the second direction. In some embodiments, the pressing assembly 10 also includes two second linear structures 105 spaced apart in the first direction. Each second linear structure 105 consists of a second guide shaft 106 and a second linear bearing 107. The second linear bearing 107 is installed on the fixed plate 100 and can limit the movement of the second guide shaft 106 to ensure the stability of the pressure plate component 102 during linear movement along a third direction.

[0079] Reference Figure 8 and 9 The bending assembly 20 is also mounted on the assembly plate 40 and includes a second driving component 200, a lifting plate 201, at least one lifting shaft 202, a connecting plate 203, and at least one set of tie rods. The second driving component 200 is mounted on the assembly plate 40, and its output end is connected to the lifting plate 201 to drive the lifting plate 201 to move linearly in a third direction. Correspondingly, the lifting shaft 202 is arranged along a third direction, and its two ends are respectively connected to the lifting plate 201 and the connecting plate 203. The tie rods are mounted on the connecting plate 203 so that the second driving component 200 can drive the lifting plate 201, the lifting shaft 202, the connecting plate 203, and the tie rods as a whole to move along a third direction. In some embodiments, the assembly plate 40 is provided with a third linear bearing 206 at the position of the lifting shaft 202 to improve the stability of the lifting shaft 202 during movement. Figure 8 and 9Continuing with the description of the bending assembly 20, a single set of tie rods consists of two tie rod members 204 spaced apart in the second direction. The positions of the two tie rod members 204 in the single set of tie rods correspond to the positions of the second ends 314b of the rotating blocks 314 on the adjacent rotating units 312 in the second direction of the die structure 310. That is, a single tie rod member 204 can be connected to the second end 314b of the rotating block 314. When the tie rod member 204 rises in the third direction, it can drive the rotating block 314 to rotate around the first end 314a to achieve the upward bending operation. In some embodiments, the tie rod member 204 is equipped with a roller bearing 205. Correspondingly, the second end 314b of the rotating block 314 is provided with a circular groove that cooperates with the roller bearing 205. In some embodiments, when the distance between the two rotating units 312 in the adjacent rotating structure is small in the second direction, two rotor bearings can be configured on a single tie rod member 204 to reduce the number of tie rod members 204 and reduce the overall size of the upward bending mechanism.

[0080] During the upward folding action, the first driving member 101 actuates, causing the base plate member 301 connected to the pressure plate member 102 in the punch structure 300 and the entire punch structure 300 to descend along a third direction. The pad member 304 in the punch structure 300 makes interference contact with the die member 316, and the pad member 304 is lifted by the action of the first tension spring 330, clamping the frame placed on the die member 316 together with the die member 316. Subsequently, the second driving member 200 actuates, driving the pull rod member 204... As the material rises, the roller bearing 205 on the tie rod component 204 contacts the second end 314b of the rotating block 314, causing the rotating block 314 and the die component 316 to rotate. The push plate component 307 is different; after folding upward to a certain angle, the flow channel breaks, the second drive component 200 resets, the rotating block 314 resets downward under the action of the second tension spring 350, the pad component 304 resets under the action of gravity, and then the first drive component 101 resets, causing the punch structure 300 to rise as a whole, and the product punching is completed.

[0081] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A glue removal and folding mechanism for a dual injection molding system, characterized in that, include: A punch structure configured to be linearly movable along a third direction, comprising a base plate member, a top plate member, and two mounting plates sequentially arranged in the third direction, the top plate member connecting the base plate member and the mounting plates, the base plate member being configured to be linearly movable along the third direction, and the two mounting plates being spaced apart in a second direction; the punch structure further comprises: Two mounting blocks are respectively fixed to both ends of the top plate component in the first direction. The mounting plate is configured to rotate relative to the mounting blocks, and the rotation axis of the mounting plate is parallel to the first direction. Two locking blocks are respectively fixed to the outer ends of the two mounting blocks in the first direction; Two pad components are respectively fixed to the bottom surfaces of the two mounting plates; A push plate component is located between the two mounting plates in the second direction and is connected to the top plate component; The folding mechanism further includes: The die structure includes two rotating structures spaced apart in the second direction, each rotating structure comprising: The two support blocks are spaced apart in the first direction; Two rotating blocks, each rotating block having a first end rotatably connected to the supporting block and a second end capable of rotating around the first end; A support plate is mounted on the rotating block; A die component is fixedly installed on the top surface of the support plate. The folding mechanism further includes a pressing component, which includes: A fixed plate is positioned above the punch structure in a third-dimensional orientation and is fixedly installed. The first driving component is mounted on the fixed plate. A pressure plate component is installed at the output end of the first driving component and configured to move linearly along a third direction under the action of the first driving component, and the pressure plate component and the base plate component are fixedly connected. The folding mechanism further includes a bending component, which comprises: The second driving component is positioned above and fixed to the die structure in a third-order orientation; The lifting plate is configured to move linearly along a third direction under the action of the second driving component; The connecting plate is located below the lifting plate in a third-order orientation. At least one lifting shaft is provided along a third direction, and both ends of the lifting shaft are respectively connected to the lifting plate and the connecting plate; At least two tie rod components are spaced apart along the second direction, and roller bearings are provided at corresponding positions at the second end of the rotating block in the rotating unit.

2. The glue removal and folding mechanism for a dual injection molding system according to claim 1, characterized in that: The punch structure also includes a rotating block assembled between the mounting plate and the mounting block. The rotating block is rotatably mounted on the mounting block and connected to the mounting plate.

3. A glue removal and folding mechanism for a dual injection molding system according to claim 1 or 2, characterized in that: The mounting plate and the top plate component are connected by two first tension springs spaced apart in a first direction, and both the mounting plate and the top plate component are provided with a first mounting seat for mounting the first tension spring.

4. The glue removal and folding mechanism for a dual injection molding system according to claim 1, characterized in that: The top plate component and the base plate component are connected by two first linear structures spaced apart in a first direction, the first linear structure comprising: A first spring is disposed between the top plate component and the base plate component along a third direction; A first linear bearing is mounted on the top plate component; The first guide shaft has one end mounted on the base plate component and the other end extending in a third direction and passing through the top plate component and the first linear bearing in sequence.

5. The glue removal and folding mechanism for a dual injection molding system according to claim 1, characterized in that: The top plate component and the push plate component are connected by two connecting components spaced apart in a first direction. The connecting components include: A pad component is installed on the ceiling component; The guide post component has one end mounted on the pad component and the other end extending in a third direction and connected to the push plate component.

6. The glue removal and folding mechanism for a dual injection molding system according to claim 5, characterized in that: The connection component also includes: A second spring is disposed between the top plate component and the push plate component, and a groove for accommodating the second spring is formed on the push plate component; Auxiliary blocks are installed on the ceiling panel component; A limiting screw, one end of which passes through the auxiliary block and the top plate component in sequence and extends into the second spring.

7. The glue removal and folding mechanism for a dual injection molding system according to claim 1, characterized in that: The die structure further includes: A second tension spring, the two ends of which are respectively connected to the rotating block and the supporting block, and the connection position between the second tension spring and the rotating block is adjacent to the second end of the rotating block; A limiting structure is installed on the support block and configured to limit the rotation of the rotating block when it rotates to a horizontal position.

8. The glue removal and folding mechanism for a dual injection molding system according to claim 1, characterized in that: The pressing component further includes a second linear structure, the second linear structure comprising: A second linear bearing is mounted on the fixed plate. The second guide shaft is connected at one end to the pressure plate member and is configured to slide within the second linear bearing.

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