Optical module body multi-cavity die casting mold

Abstract

The present invention discloses a multi-cavity die-casting mold for an optical module body, wherein a diverter cone is abutted inside the gate sleeve of the fixed mold plate, and a plurality of diverter channels are evenly distributed along the circumferential direction on the outer side wall of the diverter cone. The bottom end face of the fixed mold plate is provided with side flow channels that are connected to the plurality of diverter channels in a one-to-one correspondence. The top of the movable mold plate is provided with a core that is in a one-to-one correspondence with the plurality of side flow channels, and both sides of the core are provided with features for molding the two sides of the optical module body, and an inclined ejector block that can eject the optical module body, and a slider for molding the light receiving hole and light emitting hole features on the optical module body is provided on the front sliding surface of the core. A push rod is provided at the bottom of the inclined ejector block, and the bottom of the push rod is connected to the ejection plate. The beneficial effects of the present invention: the slider for molding the side features of the module body is eliminated, the structure of the mold is greatly simplified, and the number of cores that can be arranged on the movable mold plate is greatly increased, thereby greatly improving the production efficiency of the mold and meeting market demand.

Description

Technical Field

[0001] The invention relates to the technical field of die-casting of an optical module body, and in particular to a multi-cavity die-casting mold for an optical module body. Background Art

[0002] The optical module body is the main component used to assemble the optical communication module. The optical module body is mainly made of zinc alloy die-casting. With the development of 5G communication services, the market demand for optical module bodies is increasing, and the quality requirements for optical module bodies are becoming more and more stringent. At the same time, customers' requirements for delivery time are also getting shorter and shorter. The existing die-casting molds for optical module bodies generally adopt a structure in which a slider (or slide) is set on the side to form the mold. The mold of this structure occupies a large space on the movable template or the fixed template because the slider (or slide) occupies a large space on the movable template or the fixed template, making the space for setting the core on the movable template or the fixed template small, and can only achieve one mold with one cavity or one mold with two cavities. The production efficiency is very low and it is difficult to meet market demand. Summary of the invention

[0003] In view of the problems existing in the prior art, the main purpose of the present invention is to provide a multi-cavity die-casting mold for an optical module body, aiming to solve the problem that the existing mold that uses a slider set on the side to die-cast the optical module body has low production efficiency and is difficult to meet market demand.

[0004] To achieve the above-mentioned purpose, the optical module body multi-cavity die-casting mold proposed by the present invention comprises: a fixed mold plate, a movable mold plate and an ejector plate arranged in sequence from top to bottom, and the bottom end surface of the fixed mold plate and the top end surface of the movable mold plate can be sealed and pressed to form a parting surface. A gate sleeve is provided on the fixed mold plate, which is vertically connected to the parting surface, and a diverter cone is abutted in the gate sleeve. A plurality of diverter channels are evenly distributed on the outer wall of the diverter cone along the circumferential direction. A side flow channel is provided on the bottom end surface of the fixed mold plate, which is connected to the plurality of diverter channels in a one-to-one correspondence. A core corresponding to the plurality of side flow channels and used to mold the bottom features of the optical module body is provided on the top of the movable mold plate. Through holes are provided on both sides of the core, and an inclined ejector block for molding the features on both sides of the optical module body is provided in the through hole, and the inclined ejector block can slide obliquely upward or obliquely downward in the through hole. The side flow channel is provided directly above the gap between the corresponding core and one of the inclined ejector blocks. A slider for molding the features of the light receiving hole and the light emitting hole on the optical module body is provided on the front side of the core. A push rod is arranged at the bottom of the inclined push block, and the bottom of the push rod is connected with the ejection plate.

[0005] Preferably, the diverter cone includes: a straight section and a conical section. The straight section is fixed in the movable template, and the top of the straight section is flush with the top end surface of the movable template. The conical section is arranged at the top of the straight section, and the conical section is inserted into the gate sleeve and abuts against the inner wall of the gate sleeve.

[0006] Preferably, the cross section of the branch channel is a semicircular arc cross section.

[0007] Preferably, the side flow channel is arc-shaped along the length direction, and the cross-section of the side flow channel is also a semicircular arc cross-section.

[0008] Preferably, the cross-section of the side flow channel gradually decreases from one end of the branch flow channel toward one end of the core.

[0009] Preferably, the inclined ejector block comprises: an ejector guide plate and an ejector molding block. An inclined groove is provided on the inner wall of the through hole, and the ejector guide plate slides in the inclined groove. The ejector molding block is fixed on the top end of the ejector guide plate toward the side wall of the core, and the ejector molding block molds the features on both sides of the optical module body.

[0010] Preferably, the slider is slidably arranged on the movable template, and the fixed template is provided with a shovel for driving the slider to slide on the movable template.

[0011] Preferably, a "T"-shaped connecting portion is provided at the top end of the ejector rod, and a "T"-shaped slot is provided at the bottom end of the ejection guide plate, and the "T"-shaped connecting portion is inserted into the "T"-shaped slot.

[0012] Preferably, a movable die base plate is fixed at the bottom of the movable die plate, and the inclined ejector block can partially slide downward into the movable die base plate. A guide hole for the ejector rod to slide up and down is provided in the movable die base plate, and a guide sleeve is embedded in the guide hole, and the guide sleeve is on the ejector rod.

[0013] Preferably, the ejection guide plate and the ejection forming block are both made of mold steel.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: by adopting an inclined top block to directly form the features of the two sides of the optical module body, the slider used to form the side features of the module body is eliminated, the structure of the mold is greatly simplified, and the number of cores that can be arranged on the movable mold plate is greatly increased, thereby greatly improving the production efficiency of the mold and meeting market demand. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0016] Figure 1 This is a schematic diagram of an explosion structure of an embodiment of the present invention;

[0017] Figure 2 This is a schematic diagram of the bottom three-dimensional structure of a fixed template in one embodiment of the present invention;

[0018] Figure 3It is a structural schematic diagram of an inclined ejector block and a core assembled together in one embodiment of the present invention;

[0019] The purpose, features and advantages of the present invention will be further described with reference to the accompanying drawings in conjunction with the embodiments. DETAILED DESCRIPTION

[0020] The invention provides a multi-cavity die-casting mold for an optical module body.

[0021] Reference Figure 1-3 , Figure 1 This is a schematic diagram of an explosion structure of an embodiment of the present invention. Figure 2 This is a schematic diagram of the bottom three-dimensional structure of a fixed template in one embodiment of the present invention. Figure 3 It is a schematic structural diagram of an inclined ejector block and a core assembled together in one embodiment of the present invention.

[0022] like Figure 1 As shown, in an embodiment of the present invention, the multi-cavity die-casting mold for the optical module body includes: a fixed mold plate 100, a movable mold plate 200 and an ejector plate 300 arranged in sequence from top to bottom, and the bottom end surface of the fixed mold plate 100 and the top end surface of the movable mold plate 200 can be sealed and pressed together to form a parting surface.

[0023] The fixed mold plate 100 is provided with a sprue bushing 110 vertically connected to the parting surface, and a diverter cone 210 is abutted in the sprue bushing 110. The diverter cone 210 includes a straight section 212 and a tapered section 213. The straight section 212 is fixed in the movable mold plate 200, and the top of the straight section 212 is flush with the top end surface of the movable mold plate 200. The tapered section 213 is arranged at the top of the straight section 212, and the tapered section 213 is inserted into the sprue bushing 110 and abuts against the inner wall of the sprue bushing 110.

[0024] A plurality of flow channels 211 are evenly distributed along the circumferential direction on the outer wall of the flow dividing cone 210 so that the molten material flowing in from the gate sleeve can be evenly distributed during die casting. The cross section of the flow channel 211 is a semicircular arc section so that the molten material can flow smoothly through the flow channel 211.

[0025] like Figure 1-2 As shown, the bottom end surface of the fixed mold plate 100 is provided with a side runner 120 corresponding to a plurality of branch runners 211. After the molten material flows out through the branch runner 211, it flows into each side runner 120. The side runner 120 is arc-shaped along the length direction, which can ensure that the flow resistance of the molten material in the side runner 120 is small, and the molten material at the front end will not solidify before entering the core, so that the side runner 120 can be designed to be longer, and it is convenient to set multiple cores on the movable mold plate 200 to increase production capacity. The cross section of the side runner 120 is also a semicircular arc section, which can further reduce the flow resistance of the molten material in the side runner 120.

[0026] When the molten material flows in the longer side runner 120, the molten material at the front end will cool down first and increase the resistance to the flow of the molten material. In the present embodiment, by gradually reducing the cross-section of the side runner 120 from one end of the branch runner 211 toward one end of the core 220, it is ensured that the die-casting pressure on the molten material at the front end is the greatest, thereby making the flow of the molten material at the front end very smooth.

[0027] like Figure 1-Figure 3 As shown, a core 220 corresponding to a plurality of side flow channels 120 and used to mold the bottom features of the optical module body is disposed on the top of the dynamic mold plate 200 .

[0028] Through holes are provided on both sides of the core 220, and inclined ejector blocks 400 for molding the features on both sides of the optical module body are provided in the through holes, and the inclined ejector blocks 400 can slide obliquely upward or obliquely downward in the through holes. The side runner 120 is provided directly above the gap between the corresponding core 220 and one of the inclined ejector blocks 400. The molten material flows from the side runner 120 into the core 220, and is cooled and molded into the optical module body at the core position. When the molded optical module body is demolded, the inclined ejector block 400 slides obliquely upward in the through hole to eject the molded optical module body. When the mold is closed, the inclined ejector block 400 slides obliquely downward in the through hole to reset to the molding position, and molds the side features of the optical module body during die casting.

[0029] By using the inclined top block 400 to directly form the features of the two sides of the optical module body, the slider 230 used to mold the side features of the module body is eliminated, which greatly simplifies the structure of the mold and greatly increases the number of cores 220 that can be arranged on the movable mold plate 200, which can reach more than four cavities in one mold, thereby greatly improving the production efficiency of the mold to meet market demand.

[0030] The inclined ejector block 400 includes an ejector guide plate 410 and an ejector molding block 420. An inclined groove is provided on the inner wall of the through hole, and the ejector guide plate 410 slides in the inclined groove. The ejector molding block 420 is fixed to the top of the ejector guide plate 410 on the side wall facing the core 220, and the ejector molding block 420 molds the features on both sides of the optical module body.

[0031] By configuring the inclined ejector block 400 to be composed of an ejector guide plate 410 and an ejector molding block 420 , the ejector molding block 420 can be replaced according to different side features of different optical module bodies, making the mold more flexible to use and more widely applicable.

[0032] The front side of the core 220 is provided with a slider 230 for molding the light receiving hole and light emitting hole features on the optical module body. The slider 230 is slidably arranged on the movable plate 200, and the fixed plate 100 is provided with a shovel 130 for driving the slider 230 to slide on the movable plate 200. During the mold opening process, the fixed plate 100 and the movable plate 200 are gradually opened, and the driving rod at the bottom of the shovel 130 drives the slider 230 to slide in the direction away from the core, thereby realizing synchronous demolding. During the mold closing process, the fixed plate 100 and the movable plate 200 are gradually closed, and the driving rod at the bottom of the shovel 130 drives the slider 230 to slide in the direction close to the core, thereby realizing synchronous mold closing.

[0033] A push rod 500 is provided at the bottom of the inclined ejector block 400, a "T"-shaped connecting portion 510 is provided at the top of the push rod 500, and a "T"-shaped slot 411 is provided at the bottom end of the ejection guide plate 410. The "T"-shaped connecting portion 510 is inserted into the "T"-shaped slot 411. This arrangement can conveniently install the push rod 500 at the bottom of the ejection guide plate 410, thereby realizing the connection between the bottom of the push rod 500 and the ejection plate 300.

[0034] A movable die base plate (not shown) is fixed to the bottom of the movable die plate 200, and the inclined ejector block 400 can partially slide downward into the movable die base plate. A guide hole is provided in the movable die base plate for the ejector rod 500 to slide up and down, and a guide sleeve 520 is embedded in the guide hole, and the guide sleeve 520 is on the ejector rod 500. By providing the guide hole and the guide sleeve 520, the accuracy of the up and down movement of the ejector rod 500 can be guaranteed, thereby improving the accuracy of the die-cast optical module body.

[0035] Preferably, in this embodiment, the ejection guide plate 410 and the ejection molding block 420 are both made of mold steel with high strength and thermal stability, so as to ensure the accuracy of the die-casting of the optical module body.

[0036] In this embodiment, a temperature control unit for adjusting the temperature of the melt in the diverter channel can be separately provided in the diverter cone, a temperature control unit for adjusting the temperature of the melt in the side flow channel can be separately provided in the fixed mold plate, a temperature control unit for adjusting the temperature of the core can be separately provided in the movable mold plate, and a temperature control unit for adjusting the temperature of the inclined ejector block 400 can be separately provided. For example, water channels connected to an external mold temperature controller can be respectively provided in the diverter cone, the fixed mold plate, the movable mold plate and the inclined ejector block 400, and computer-aided analysis and design technology, variable temperature control technology and regional mold temperature control technology can be used to achieve balanced control of the mold temperature, so that the die-cast optical module body has higher precision and the product precision can reach 0.02mm.

[0037] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A multi-cavity die-casting mold for an optical module body, comprising: The fixed template, the movable template and the ejector plate are arranged in sequence from top to bottom, and the bottom end surface of the fixed template and the top end surface of the movable template can be sealed and pressed together to form a parting surface; it is characterized in that the fixed template is provided with a gate sleeve vertically connected to the parting surface, a diverter cone is abutted in the gate sleeve, and a plurality of diverter channels are evenly distributed on the outer wall of the diverter cone along the circumferential direction; the bottom end surface of the fixed template is provided with side flow channels corresponding to the plurality of the diverter channels one by one; the top of the movable template is provided with a gate sleeve corresponding to the plurality of the side flow channels one by one and used to form a parting surface. A core having the bottom features of the molding optical module body; through holes are provided on both sides of the core, and inclined top blocks for molding the features on both sides of the optical module body are provided in the through holes, and the inclined top blocks can slide obliquely upward or obliquely downward in the through holes; the side flow channel is provided just above the gap between the corresponding core and one of the inclined top blocks; a slider for molding the light receiving hole and light emitting hole features on the optical module body is provided on the front sliding surface of the core; a push rod is provided at the bottom of the inclined top block, and the bottom of the push rod is connected to the ejection plate; The diverter cone comprises: a straight section and a conical section; the straight section is fixed in the movable template, and the top of the straight section is flush with the top end surface of the movable template; the conical section is arranged at the top of the straight section, and the conical section is inserted into the sprue bushing and abuts against the inner wall of the sprue bushing; The cross section of the side runner gradually decreases from one end of the branch runner toward one end of the core; The inclined ejector block includes: an ejection guide plate and an ejection molding block; an inclined groove is provided on the inner wall of the through hole, and the ejection guide plate slides in the inclined groove; the ejection molding block is fixed on the top end of the ejection guide plate toward the side wall of the core, and the ejection molding block molds the features on both sides of the optical module body.

2. The optical module body multi-cavity die-casting mold according to claim 1, characterized in that: The cross section of the branch channel is a semicircular arc cross section.

3. The optical module body multi-cavity die-casting mold according to claim 1, characterized in that: The side flow channel is arc-shaped along the length direction, and the cross section of the side flow channel is also a semicircular arc section.

4. The optical module body multi-cavity die-casting mold according to any one of claims 1 to 3, characterized in that: The sliding block is slidably arranged on the movable platen, and the fixed platen is provided with a shovel for driving the sliding block to slide on the movable platen.

5. The optical module body multi-cavity die-casting mold according to claim 1, characterized in that: A "T"-shaped connecting portion is provided at the top end of the ejector rod, and a "T"-shaped slot is provided at the bottom end of the ejection guide plate, and the "T"-shaped connecting portion is inserted into the "T"-shaped slot.

6. The optical module body multi-cavity die-casting mold according to claim 5, characterized in that: A movable mold base plate is fixed to the bottom of the movable mold plate, and the inclined ejector block can partially slide downward into the movable mold base plate; a guide hole is provided in the movable mold base plate for the ejector rod to slide up and down, and a guide sleeve is embedded in the guide hole, and the guide sleeve is on the ejector rod.

7. The optical module body multi-cavity die-casting mold according to claim 1, characterized in that: The ejection guide plate and the ejection forming block are both made of die steel.

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