A material rack top rod for diode packaging

Abstract

The present invention discloses a material rack ejector for diode packaging, comprising an upper ejector, a lower ejector, a spring and a locking pin mechanism, wherein the upper ejector is provided with a slide groove matching the lower ejector along its axial direction, the spring is arranged in the slide groove, and the upper ejector is slidably sleeved on the lower ejector, the side wall of the upper ejector is symmetrically provided with a guide groove along its axial direction, a first mounting hole is radially arranged at a corresponding position of the lower ejector, and the locking pin mechanism is arranged on the first mounting hole, and the locking pin mechanism is used to limit and guide the upper ejector to move up and down. The present invention elastically connects the upper ejector with the lower ejector through a spring, so that the material rack will not be damaged by the hard ejection when ejecting; the connecting rod and the right locking block are matched with a card slot and a card strip, which is convenient for installation, and the card slot is arranged circumferentially, and the connecting rod is fixedly connected with the right locking block through an elastic pin and a card strip, which effectively prevents the right locking block from falling off during use; in addition, the left locking block and the right locking block are provided with an arc surface matching the lower ejector, so that the locking pin mechanism is convenient for disassembly and assembly.

Description

Technical Field

[0001] The present invention relates to the field of molds, and in particular to a material rack ejector for diode packaging. Background Art

[0002] Diode packaging is achieved by setting a mold box on the moving mold, placing the diodes to be packaged on the material rack, and then placing the material rack on the moving mold, so that the packaging parts of hundreds of diodes on the material rack are placed in the mold box, and the moving mold moves upward to close the mold with the fixed mold, and then the glue for packaging is injected into the mold box through the glue injection system. However, if the mold is not closed accurately or for other reasons, the glue may leak out. After cooling, the glue solidifies and adheres the material rack and the mold box together. The material rack is usually made of aluminum. At this time, if the ejector is ejected, the material rack is easily deformed, and a material rack is worth thousands or even tens of thousands, which will increase the cost of equipment. Summary of the invention

[0003] In view of the defects of the above-mentioned prior art, the main purpose of the present invention is to overcome the shortcomings of the prior art and discloses a material rack push rod for diode packaging, including an upper push rod, a lower push rod, a spring and a locking pin mechanism. The upper push rod is recessed along its axial direction and provided with a slide groove matching the lower push rod. The spring is arranged in the slide groove, and the upper push rod is slidably sleeved on the lower push rod. The side wall of the upper push rod is symmetrically provided with guide grooves along its axial direction, and a first mounting hole is radially provided at a corresponding position of the lower push rod. The locking pin mechanism is arranged on the first mounting hole, and the locking pin mechanism is utilized to limit and guide the upper push rod to move up and down.

[0004] Furthermore, the locking pin mechanism comprises a left locking block and a right locking block, a connecting rod is provided on one side of the left locking block extending outward, and the right locking block is provided on the other end of the connecting rod.

[0005] Furthermore, a first clamping groove is vertically arranged on the end side wall of the connecting rod, and a matching first clamping strip is arranged at a corresponding position of the right locking block.

[0006] Furthermore, it also includes a pin shaft, the connecting rod axially penetrates a second mounting hole for mounting the pin shaft, a second slot is set on the side wall of the inner hole of the second mounting hole, and a third slot connected to the second slot is set at the corresponding position of the first clip strip, and a second clip strip matching the second slot and the third slot is axially set on the side wall of the pin shaft.

[0007] Furthermore, the second card slot is arranged at the three o'clock position or the nine o'clock position.

[0008] Furthermore, the pin shaft is an elastic pin.

[0009] Furthermore, the left locking block and the right locking block are provided with a curved surface matching the side wall of the lower push rod on a side surface close to the lower push rod.

[0010] Furthermore, a disassembly opening communicating with the second mounting hole is provided on the contact surface between the right locking block and the connecting rod.

[0011] Furthermore, the left locking block and the right locking block are magnetic, and the lower push rod is made of a material that can be attracted by a magnet.

[0012] Furthermore, the opening of the first locking strip of the right locking block is located on the upper surface.

[0013] Beneficial effects achieved by the present invention:

[0014] The present invention elastically connects the upper ejector rod with the lower ejector rod by a spring, so that the material rack will not be damaged by the strong ejection during ejection; the connecting rod and the right locking block are matched with a slot and a strip, which is easy to install, and the slot is arranged circumferentially, and the connecting rod and the right locking block are fixedly connected by an elastic pin and a strip, which effectively prevents the right locking block from falling off during use; in addition, the left locking block and the right locking block are provided with an arc surface matching the lower ejector rod, so that the locking pin mechanism is convenient to disassemble and assemble. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of a material rack top rod for diode packaging of the present invention;

[0016] Figure 2 Schematic diagram of the structure of the upper ejector rod;

[0017] Figure 3 is a structural schematic diagram of the lower ejector rod;

[0018] Figure 4 It is a structural schematic diagram of the locking pin mechanism;

[0019] Figure 5 It is a structural schematic diagram of the left locking block and the connecting rod;

[0020] Figure 6 for Figure 5 Right view of;

[0021] Figure 7 It is a structural schematic diagram of the right locking block;

[0022] Figure 8 for Figure 7 Schematic diagram from another perspective;

[0023] Fig. 9 It is a schematic diagram of the structure of the pin shaft;

[0024] Fig.10 The intermediate step state diagram for installing the locking pin mechanism;

[0025] The reference numerals are as follows:

[0026] 1. Upper push rod, 2. Lower push rod, 3. Spring, 4. Locking pin mechanism, 11. Slide slot, 12. Guide slot, 21. First mounting hole, 41. Left locking block, 42. Right locking block, 43. Pin shaft, 44. Connecting rod, 421. First clamping strip, 422. Third clamping slot, 423. Disassembly opening, 431. Second clamping strip, 441. Second mounting hole, 442. First clamping slot, 443. Second clamping slot. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0028] A material rack top rod for diode packaging, such as Figure 1 As shown, it includes an upper ejector rod 1, a lower ejector rod 2, a spring 3 and a locking pin mechanism 4. The upper ejector rod 1 is provided with a slide groove 11 matching the lower ejector rod along its axial direction, the spring 3 is arranged in the slide groove 11, and the upper ejector rod 1 is slidably sleeved on the lower ejector rod 2. The side wall of the upper ejector rod 1 is symmetrically provided with a guide groove 12 along its axial direction, and a first mounting hole 21 is radially arranged at a corresponding position of the lower ejector rod 2. The locking pin mechanism 4 is arranged on the first mounting hole 21, and the locking pin mechanism 4 is used to limit and guide the upper ejector rod 1 to move up and down, and prevent the upper ejector rod 1 from separating from the lower ejector rod 2. When the mold is opened, the ejector rod is driven to move toward the material frame, and then the material frame is ejected; when the material frame is adhered to the mold box, its force is greater than the elastic force of the spring 3, then the spring 3 is compressed, and the material frame will not be ejected by the hard top, causing the material frame to deform.

[0029] In the above embodiment, the ejector rod is frequently used. Even when not in use, the upper ejector rod 1 always acts on the spring 3. Therefore, the spring 3 may be deformed or lack elasticity after being used for a period of time. It can be seen that in order to ensure the ejection effect, the spring 3 needs to be replaced frequently. In a preferred embodiment, Figure 1-9 As shown, the locking pin mechanism 4 includes a left locking block 41 and a right locking block 42 . A connecting rod 44 is provided on one side of the left locking block 41 extending outward, and the right locking block 42 is provided on the other end of the connecting rod 44 .

[0030] In one embodiment, if Figure 1-9As shown, the end side wall of the connecting rod 44 is vertically and symmetrically provided with a first clamping groove 442, and a matching first clamping strip 421 is provided at a corresponding position of the right locking block 42. When in use, the right locking block 42 inserts the first clamping strip 421 into the first clamping groove 442 from bottom to top, and the first clamping strip 421 is interference-fitted with the first clamping groove 442, thereby achieving the connection between the right locking block 42 and the connecting rod 44. Preferably, the opening of the first clamping strip 421 of the right locking block 42 is located on the upper surface, so that the reaction force of the thrust of the upper ejector rod 1 pushed by the spring 3 acts on the bottom of the right locking block 42.

[0031] In addition, in order to further improve the reliability of the connection between the right locking block 42 and the connecting rod 44, a pin shaft 43 is further included. The connecting rod 44 axially penetrates a second mounting hole 441 for mounting the pin shaft 43. A second clamping groove 443 is arranged on the side wall of the inner hole of the second mounting hole 441, and a third clamping groove 422 communicating with the second clamping groove 443 is arranged at a corresponding position of the first clamping strip 421. A second clamping strip 431 matching the second clamping groove 443 and the third clamping groove 422 is axially arranged on the side wall of the pin shaft 43. When the right locking block 42 is mounted on the connecting rod 43, the pin shaft 43 is inserted into the second mounting hole 441, and the second clamping groove 443 and the third clamping groove 422 are connected together by the second clamping strip 431 to prevent the right locking block 42 from sliding downward when in use. Preferably, the second clamping groove is arranged at the three o'clock position or the nine o'clock position, and correspondingly, the third clamping groove 422 is also arranged at the three o'clock position or the nine o'clock position. When in use, the right locking block 42 can only move vertically, and the reliability of locking of the right locking block 42 can be ensured at the above two positions.

[0032] In the above embodiment, if Figure 1-9 As shown, the pin 43 is an elastic pin, which has two purposes. First, the elastic pin itself has an outward expansion force to ensure that the elastic pin is tightly fitted with the second mounting hole 441, and prevent the elastic pin from axially moving and sliding out of the second mounting hole 441. Second, the elastic pin always pushes the second clamping strip 431 in the second mounting hole 441 along the radial direction of the second mounting hole 441, thereby ensuring that the second clamping strip 431 is always in the second clamping groove 443 and the third clamping groove 422.

[0033] In one embodiment, if Figure 1-10 As shown, the left locking block 41 and the right locking block 42 are provided with an arc surface matching the side wall of the lower push rod 2 on one side close to the lower push rod 2. The provision of the arc surface can facilitate the disassembly of the lock pin mechanism 4; specifically, when installing the push rod, first install the spring 3 in the slide groove 11, and put the upper push rod 1 on the lower push rod 2, align the guide groove 12 with the first mounting hole 21, press the upper push rod 1 to compress the spring 3, and then insert the connecting rod 44 into the first mounting hole 21 until the left locking block 41 fits with the lower push rod 2, and place the right locking block 42 at the bottom of the guide groove 12, as shown in FIG. Fig.10In the position shown, the upper push rod 1 is released, and the upper push rod 1 moves upward due to the force of the spring 3, that is, the right locking block 42 moves toward the connecting rod 44, and the first clamping strip 421 is inserted into the first clamping slot 442, and then the pin 43 is inserted to connect the second clamping slot 442 and the third clamping slot 422. The disassembly process is the reverse step of the installation process. Preferably, the left locking block 41 and the right locking block 42 are magnetic, and the lower push rod 2 is made of a material that can be attracted by a magnet, such as iron, cobalt, and nickel; usually iron materials are used. By utilizing the attraction of the magnet, the left locking block 41 and the right locking block 42 are tightly fitted on the lower push rod 2, thereby ensuring that the first clamping strip 421 and the first clamping slot 442 are aligned.

[0034] In one embodiment, if Figure 1-9 As shown, the contact surface between the right lock block 42 and the connecting rod 44 is provided with a disassembly opening 423 which is connected to the second mounting hole 441. The disassembly opening 423 does not allow the pin 43 to pass through, which is equivalent to the reference surface for the installation of the pin 43. The staff only needs to push one end of the pin 43 against the disassembly opening 423 to complete the installation. At the same time, when disassembling, the pin 43 is pushed out from the other end through the disassembly opening 423, which facilitates the disassembly of the pin 43.

[0035] The above are only preferred embodiments of the present invention and are not intended to limit the scope of implementation of the present invention. If the present invention is modified or replaced by equivalents without departing from the spirit and scope of the present invention, they should all be included in the protection scope of the claims of the present invention.

Claims

1. A material rack top rod for diode packaging, characterized in that: The invention comprises an upper ejector rod, a lower ejector rod, a spring and a locking pin mechanism, wherein the upper ejector rod is provided with a sliding groove matched with the lower ejector rod along its axial direction, the spring is arranged in the sliding groove, and the upper ejector rod is slidably sleeved on the lower ejector rod, the side wall of the upper ejector rod is symmetrically provided with a guide groove along its axial direction, a first mounting hole is radially provided at a corresponding position of the lower ejector rod, the locking pin mechanism is arranged on the first mounting hole, and the locking pin mechanism is used to limit and guide the upper ejector rod to move up and down; The locking pin mechanism comprises a left locking block and a right locking block, a connecting rod is provided on one side of the left locking block extending outward, and the right locking block is provided on the other end of the connecting rod; A first clamping groove is vertically arranged on the end side wall of the connecting rod, and a matching first clamping strip is arranged at a corresponding position of the right locking block; It also includes a pin shaft, the connecting rod axially passes through a second mounting hole for mounting the pin shaft, a second slot is arranged on the side wall of the inner hole of the second mounting hole, and a third slot connected to the second slot is arranged at a corresponding position of the first slot strip, and a second slot strip matching the second slot and the third slot is axially arranged on the side wall of the pin shaft; a disassembly opening connected to the second mounting hole is arranged on the contact surface between the right locking block and the connecting rod, and the disassembly opening cannot allow the pin shaft to pass through.

2. A material rack top rod for diode packaging according to claim 1, characterized in that: The second card slot is arranged at the three o'clock position or the nine o'clock position.

3. A material rack top rod for diode packaging according to claim 1, characterized in that: The pin shaft is an elastic pin.

4. A material rack top rod for diode packaging according to claim 1, characterized in that: The left locking block and the right locking block are provided with a curved surface matching the side wall of the lower push rod close to a side of the lower push rod.

5. A material rack top rod for diode packaging according to claim 2, characterized in that: The left locking block and the right locking block are magnetic, and the lower ejector rod is made of a material that can be attracted by a magnet.

6. A material rack top rod for diode packaging according to claim 1, characterized in that: The opening of the right locking block for setting the first clamping strip is located on the upper surface.

Images