Set top box case frame mold

Abstract

The utility model discloses a set top box case frame mold. The set top box case frame mold comprises a front mold assembly, a rear mold assembly, a first side core-pulling mechanism and a second side core-pulling mechanism, the number of the first side core-pulling mechanisms is two, the two first side core-pulling mechanisms are arranged on the two opposite sides of the rear mold core respectively, each first side core-pulling mechanism comprises an air cylinder and a first side mold core, the air cylinders are arranged on the rear mold plate, the driving ends of the air cylinders are connected with the first side mold cores, and the driving ends of the air cylinders are connected with the second side mold cores. The first side mold core is arranged on the rear mold plate in a sliding manner; the number of the second side core-pulling mechanisms is two, the two second side core-pulling mechanisms are arranged on the other two opposite sides of the rear mold core respectively, each second side core-pulling mechanism comprises a second side mold core and an inclined guide column, the second side mold cores are arranged on the rear mold plate in a sliding mode, inclined guide holes are formed in the second side mold cores, and the inclined guide columns are arranged in the inclined guide holes. And the inclined guide pillar is arranged on the front mold plate and extends into the inclined guide hole.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molds, in particular to a set-top box chassis frame mold. Background Art

[0002] Molds are various molds and tools used in industrial production to produce the desired products through methods such as injection molding, blow molding, extrusion, die casting or forging, smelting, and stamping. Injection molds usually consist of a front mold and a back mold. When the front and back molds are fastened together, molten material is injected into the mold cavity through the gate. When the mold is opened, the front and back molds separate to allow the plastic product to be removed.

[0003] A digital video converter box (Set Top Box), abbreviated as STB, commonly known as a set-top box or set-top box, is a device that connects a television set to an external signal source.

[0004] A set-top box chassis frame is used to install a mainboard of the set-top box. Since the chassis frame is rectangular and multiple sides of the frame are provided with protrusions, grooves and holes, it is inconvenient to demould the chassis frame. Utility Model Content

[0005] In order to overcome the deficiencies of the prior art, the purpose of the present invention is to provide a set-top box chassis frame mold to solve the technical problem of inconvenient demoulding in the prior art.

[0006] The utility model is realized by the following technical solutions: a set-top box chassis frame mold, comprising a front mold assembly, a rear mold assembly, a first side core pulling mechanism and a second side core pulling mechanism;

[0007] The front mold assembly includes a front mold plate, and the front mold core is provided on the front mold plate;

[0008] The rear mold assembly includes a rear mold plate, and the rear mold plate is provided with a rear mold core;

[0009] There are two first side core pulling mechanisms, which are respectively arranged on opposite sides of the rear mold core. The first side core pulling mechanisms include a cylinder and a first side core. The cylinder is arranged on the rear mold plate, and the driving end of the cylinder is connected to the first side core. The first side core is slidably arranged on the rear mold plate.

[0010] There are two second side core pulling mechanisms, which are respectively arranged on the other opposite sides of the rear mold core. The second side core pulling mechanisms include a second side core and an inclined guide column. The second side core is slidably arranged on the rear mold plate. The second side core is provided with an inclined guide hole. The inclined guide column is arranged on the front mold plate and extends into the inclined guide hole.

[0011] After the mold is closed, the front mold core, the rear mold core, the first side core and the second side core are combined to form a frame injection cavity.

[0012] In a possible embodiment, a limiting column is provided at the lower end of the second side core, and a limiting clamp is provided on the rear template. When the second side core slides outward a certain distance, the limiting column enters the limiting clamp.

[0013] In a possible implementation manner, a spring is provided in the second side core, one end of the spring abuts against the second side core, and the other end of the spring abuts against the rear mold core.

[0014] In a possible embodiment, a first sliding groove is provided on the rear template, and the first side core is slidably disposed in the first sliding groove.

[0015] In a possible embodiment, a second sliding groove is provided on the rear template, and the second side core can be slidably disposed in the second sliding groove.

[0016] In a possible implementation manner, a fixing seat is provided on the rear template, and the cylinder is arranged on the fixing seat.

[0017] In a possible implementation, a first sensor is provided on the fixing seat, a first connecting rod is provided on the first side core, a first blocking ring is sleeved on the first connecting rod, and the first blocking ring is used to trigger the first sensor.

[0018] In a possible embodiment, a receiving groove is provided on the front template, and the receiving groove is cross-shaped. The front mold core is located in the middle of the bottom of the receiving groove. After the mold is closed, the first side core and the second side core extend into the receiving groove.

[0019] In a possible embodiment, the front mold core has a first shaping surface, and the first shaping surface is used to form a desired structure on the top surface of the frame.

[0020] In a possible embodiment, a second shaping surface is provided on the rear mold core, and the second shaping surface is used to form a desired structure on the bottom surface of the frame.

[0021] Compared with the existing technology, the beneficial effect of the present invention is that: when the molded product needs to be demolded, the rear template is separated from the front template, the first side core and the second side core move with the rear template, the first side core is driven away from the molded product by the cylinder, and the second side core is driven away from the molded product by the inclined guide column. When the first side core and the second side core are completely separated from the molded product, the molded product can be ejected to achieve demolding, which is very convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a structural diagram of the set-top box chassis frame mold of the present utility model;

[0023] Figure 2 This is a structural diagram of the front mold assembly in the set-top box chassis frame mold of the present invention;

[0024] Figure 3 This is a structural diagram of the set-top box chassis frame mold of the present invention after the front mold component is hidden;

[0025] Figure 4 This is a structural diagram of the rear mold assembly in the set-top box chassis frame mold of the present invention;

[0026] Figure 5 This is a structural diagram of the first side core pulling mechanism in the set-top box chassis frame mold of the present invention;

[0027] Figure 6 This is an exploded schematic diagram of the core-pulling mechanism on the first side of the set-top box chassis frame mold of the present invention;

[0028] Figure 7 This is a structural diagram of the first slider and the second slider in the set-top box chassis frame mold of the utility model;

[0029] Figure 8 This is a schematic structural diagram of the second side core in the set-top box chassis frame mold of the present invention;

[0030] Figure 9 This is a structural schematic diagram of the limiting clip in the set-top box chassis frame mold of the present utility model.

[0031] In the picture:

[0032] 100, front mold fixing plate; 101, front mold backing plate; 102, front mold plate; 103, receiving groove; 104, first guide hole; 105, front mold core; 106, first shaping surface;

[0033] 200, rear mold fixing plate; 201, square iron; 202, rear mold plate; 203, rear mold core; 204, fixing seat; 205, lifting plate; 206, limiting clamp; 207, first guide post; 208, second guide hole; 209, first sensor; 210, stopper; 211, second sensor; 212, first chute; 213, second chute; 214, second shaping surface; 215, second guide post;

[0034] 300, cylinder; 301, first side core; 302, first connecting rod; 303, first blocking ring; 304, connecting block; 305, first slider; 306, second slider; 307, third slider; 308, first limiting groove; 309, first inclined surface; 310, inclined guide rail; 311, second inclined surface; 312, inclined guide groove; 313, limiting block; 314, limiting protrusion;

[0035] 400, inclined guide column; 401, second side core; 402, limit column; 403, spring; 404, inclined guide hole. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0037] It should be noted that all directional indications in the embodiments of the present application (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0038] In addition, the descriptions of "first", "second", etc. in this application are for descriptive purposes only and should not be understood as indicating or implying their relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between the various embodiments can be combined with each other, but this must be based on the fact that they can be implemented by ordinary technicians in this field. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0039] like Figure 1-8The set-top box chassis frame mold shown in the figure includes a front mold assembly, a rear mold assembly, a first side core pulling mechanism and a second side core pulling mechanism; the front mold assembly includes a front mold plate 102, on which a front mold core 105 is provided; the rear mold assembly includes a rear mold plate 202, on which a rear mold core 203 is provided; the number of the first side core pulling mechanisms is two, and the two first side core pulling mechanisms are respectively arranged on opposite sides of the rear mold core 203, the first side core pulling mechanism includes a cylinder 300 and a first side core 301, the cylinder 300 is arranged on the rear mold plate 202, the driving end of the cylinder 300 is connected to the first side core 301, and the first side The core 301 is slidably mounted on the rear mold plate 202. The number of second-side core-pulling mechanisms is two, and the two second-side core-pulling mechanisms are respectively arranged on the other opposite sides of the rear mold core 203. The second-side core-pulling mechanisms include a second-side core 401 and an inclined guide pin 400. The second-side core 401 is slidably mounted on the rear mold plate 202. The second-side core 401 is provided with an inclined guide hole 404. The inclined guide pin 400 is arranged on the front mold plate 102 and extends into the inclined guide hole 404. After the mold is closed, the front mold core 105, the rear mold core 203, the first-side core 301, and the second-side core 401 together form a frame injection molding cavity. It should be noted that the number of first-side core-pulling mechanisms and second-side core-pulling mechanisms is doubled, and the number of both the front mold core 105 and the rear mold core 203 is two, so that the mold can injection mold two products at a time, which is conducive to improving the production efficiency of the mold.

[0040] The beneficial effect of the present invention is that when the molded product needs to be demolded, the rear template 202 is separated from the front template 102, the first side core 301 and the second side core 401 move with the rear template 202, the first side core 301 is driven away from the molded product by the cylinder 300, and the second side core 401 is driven away from the molded product by the inclined guide column 400. When the first side core 301 and the second side core 401 are completely separated from the molded product, the molded product can be ejected to achieve demolding, which is very convenient.

[0041] Please refer to Figures 1 to 4Specifically, the front mold assembly also includes a front mold fixing plate 100 and a front mold pad 101, the front mold pad 101 is arranged on the front mold fixing plate 100, and the front mold plate 102 is arranged on the front mold pad 101, the rear mold assembly also includes a rear mold fixing plate 200, a square iron 201 and a lifting plate 205, the square iron 201 is arranged on the rear mold fixing plate 200, and the rear mold plate 202 is arranged on the square iron 201, the lifting plate 205 is arranged on the rear mold fixing plate 200, and is located between the two square irons 201, a plurality of ejectors are provided on the lifting plate 205, and the upper ends of the ejectors are passed through the rear mold plate 202 and the rear mold core 203. When the molded product needs to be ejected, the lifting plate 205 rises under the drive of the external driving member and drives the ejectors to rise, and the molded product rises and separates from the rear mold core 203 under the action of the ejectors; in addition, a first guide column 207 is also provided on the rear mold plate 202, and the front mold plate 10 2 is provided with a first guide hole 104, and the first guide column 207 extends into the first guide hole 104, which is beneficial to improving the stability of the movement of the mold when opening and closing the mold, and a second guide column 215 is provided on the lifting plate 205, and a second guide hole 208 is provided on the rear template 202, and the second guide column 215 extends into the second guide hole 208, which is beneficial to improving the stability of the movement of the lifting plate 205. In addition, two second sensors 211 are arranged side by side in an upper and lower manner on the side wall of the square iron 201, and a stopper 210 for triggering the second sensor 211 is provided on the side wall of the lifting plate 205. When the lifting plate 205 is in the initial state, the stopper 210 triggers the second sensor 211 located below. When the lifting plate 205 is in the fully lifted state, the stopper 210 triggers the second sensor 211 located above. The setting of the second sensor 211 enables workers to accurately control the distance moved by the lifting plate 205.

[0042] It should be added that the mold also includes a pouring system and a cooling system; the pouring system includes a gate, a main channel and a branch channel connected in sequence, the gate is arranged on the front mold fixing plate 100, the main channel is arranged in the front mold pad 101, the branch channel is arranged in the front mold plate 102 and the front mold core 105, and the outlet of the branch channel is arranged on the front mold core 105, and the hot melt material enters the frame injection cavity through the gate; the cooling system includes a cooling water pipe, and the front mold pad 101, the front mold plate 102, the front mold core 105, the rear mold plate 202, the rear mold core 203, the first side core 301 and the second side core 401 are all provided with cooling water pipes so that the material can be quickly cooled and formed.

[0043] Please refer to Figure 4 、 Figure 8 and Figure 9In one possible embodiment, a limiting post 402 is provided at the lower end of the second side core 401, and a limiting clamp 206 is provided on the rear template 202. When the second side core 401 slides outward a certain distance, the limiting post 402 enters the limiting clamp 206. It should be noted that the limiting clamp 206 is fixed to the rear template 202 by bolts. When the second side core 401 slides outward a certain distance, the limiting post 402 enters the limiting clamp 206, thereby stopping the sliding of the second side core 401, which helps to improve the stability of the second side core 401.

[0044] Please refer to Figure 8 In one possible embodiment, a spring 403 is disposed within the second side core 401. One end of the spring 403 contacts the second side core 401, while the other end of the spring 403 contacts the rear mold core 203. It is readily understood that during mold closing, the second side core 401 approaches the rear mold core 203 under the action of the inclined guide pin 400. The provision of the spring 403 cushions the movement of the second side core 401, preventing collision between the second side core 401 and the rear mold core 203, thereby increasing the service life of the mold.

[0045] Please refer to Figure 3 and Figure 4 In one possible embodiment, the rear template 202 is provided with a first slide groove 212, and the first side core 301 is slidably disposed in the first slide groove 212. It is easy to understand that the provision of the first slide groove 212 can guide and limit the sliding of the first side core 301, which is conducive to improving the sliding stability of the first side core 301.

[0046] Please refer to Figure 3 and Figure 4 In one possible embodiment, the rear template 202 is provided with a second chute 213, and the second side core 401 is slidably disposed in the second chute 213. It is easy to understand that the provision of the second chute 213 can guide and limit the sliding of the second side core 401, which is conducive to improving the sliding stability of the second side core 401.

[0047] Please refer to Figure 3 In one possible embodiment, a fixing base 204 is provided on the rear mold plate 202, and the cylinder 300 is disposed on the fixing base 204. It is easy to understand that the setting of the fixing base 204 can provide a mounting base for the cylinder 300 and the first sensor 209. In addition, the fixing base 204 also has a groove-shaped structure that is connected to the first slide groove 212 to expand the area of ​​the first slide groove 212, thereby providing sufficient sliding distance for the first side core 301 and providing support for the first side core 301, which is conducive to improving the sliding stability of the first side core 301.

[0048] Please refer to Figure 3and Figure 5 In one possible embodiment, a first sensor 209 is provided on the fixing seat 204, a first connecting rod 302 is provided on the first side core 301, and a first blocking ring 303 is sleeved on the first connecting rod 302. The first blocking ring 303 is used to trigger the first sensor 209. It is easy to understand that the first connecting rod 302 is provided to provide a mounting base for the first blocking ring 303, and the first blocking ring 303 can be set at any position of the first connecting rod 302 as needed. When the first side core 301 moves outward a certain distance, the first blocking ring 303 triggers the first sensor 209, so that the first sensor 209 transmits a stop signal to the cylinder 300.

[0049] Please refer to Figure 2 In one possible embodiment, the front mold plate 102 is provided with a receiving groove 103. The receiving groove 103 is cross-shaped, and the front mold core 105 is located in the middle of the bottom of the receiving groove 103. After the mold is closed, the first side core 301 and the second side core 401 extend into the receiving groove 103. It should be noted that the receiving groove 103 is cross-shaped, and the front mold core 105 is located in the middle of the bottom of the receiving groove 103. After the mold is closed, the receiving groove 103 is used to accommodate the first side core 301 and the second side core 401, which is conducive to improving the structural stability of the entire mold.

[0050] Please refer to Figure 2 In one possible embodiment, the front mold core 105 has a first shaping surface 106, which is used to form a desired structure on the top surface of the frame. It is easy to understand that the first shaping surface 106 has a variety of groove-like structures and a variety of protrusion-like structures to form corresponding structures on the top surface of the molded product.

[0051] Please refer to Figure 4 In one possible embodiment, the rear mold core 203 is provided with a second shaping surface 214, which is used to form the desired structure on the bottom surface of the frame. It is easy to understand that the second shaping surface 214 also has a variety of groove-like structures and a variety of protrusion-like structures to form corresponding structures on the bottom surface of the molded product.

[0052] Please refer to Figures 5 to 7It should also be noted that the first side core 301 includes a connecting block 304, a first slider 305, a second slider 306 and a third slider 307; the driving end of the cylinder 300 is clamped with the connecting block 304; the connecting block 304 is fixedly connected to one end of the first slider 305, and a first limiting groove 308 is provided on the side wall of the connecting block 304; the top surface of the other end of the first slider 305 has a first inclined surface 309, and the first inclined surface 309 is provided with an inclined guide rail 310; the second slider The end of the block 306 is slidably connected to the third slider 307 in the vertical direction. The bottom surface of the second slider 306 is a second inclined surface 311. The second inclined surface 311 is provided with an inclined guide groove 312. The second inclined surface 311 is adapted to fit with the first inclined surface 309. The inclined guide rail 310 is slidably connected to the inclined guide groove 312. The third slider 307 can be slidably set on the rear template 202. The third slider 307 is a hollow structure. The first slider 305 can be slidably inserted into the third slider 307. The third slider 307 is provided with a limit block 313, and the side of the limit block 313 has a limit protrusion 314. When the connecting block 304 slides outward for a certain distance, the limit protrusion 314 extends into the first limit groove 308, so that the limit block 313 and the connecting block 304 are engaged. When the first side core 301 needs to be separated from the molded product, the cylinder 300 drives the first slider 305 to slide outward through the connecting block 304. Under the cooperation of the inclined guide rail 310 and the inclined guide groove 312, the first side core 301 is connected to the molded product. , the second slider 306 moves slowly downward. After the connecting block 304 slides outward for a certain distance, the limiting block 313 is engaged with the connecting block 304 under the cooperation of the limiting protrusion 314 and the first limiting groove 308, so that the third slider 307 is driven by the connecting block 304 to slide together. At this time, the cylinder 300 drives the first slider 305, the second slider 306 and the third slider 307 to slide outward together, so as to realize the smooth separation of the first side core 301 from the molded product.

[0053] The above-mentioned embodiments are only preferred embodiments of the present invention and cannot be used to limit the scope of protection of the present invention. Any non-substantial changes and replacements made by technicians in this field on the basis of the present invention fall within the scope of protection required by the present invention.

Claims

1. A set-top box chassis frame mold, characterized in that: It includes a front mold assembly, a rear mold assembly, a first side core pulling mechanism and a second side core pulling mechanism; The front mold assembly includes a front mold plate, and the front mold plate is provided with a front mold core; The rear mold assembly includes a rear mold plate, and the rear mold plate is provided with a rear mold core; There are two first side core pulling mechanisms, which are respectively arranged on opposite sides of the rear mold core. The first side core pulling mechanisms include a cylinder and a first side core. The cylinder is arranged on the rear mold plate, and the driving end of the cylinder is connected to the first side core. The first side core is slidably arranged on the rear mold plate. There are two second side core pulling mechanisms, which are respectively arranged on the other opposite sides of the rear mold core. The second side core pulling mechanisms include a second side core and an inclined guide column. The second side core is slidably arranged on the rear mold plate. The second side core is provided with an inclined guide hole. The inclined guide column is arranged on the front mold plate and extends into the inclined guide hole. After the mold is closed, the front mold core, the rear mold core, the first side core and the second side core are combined to form a frame injection cavity.

2. The set-top box chassis frame mold according to claim 1, characterized in that: A limiting column is provided at the lower end of the second side core, and a limiting clamp is provided on the rear template. When the second side core slides outwards a certain distance, the limiting column enters into the limiting clamp.

3. The set-top box chassis frame mold according to claim 1, characterized in that: A spring is provided in the second side core, one end of the spring abuts against the second side core, and the other end of the spring abuts against the rear mold core.

4. The set-top box chassis frame mold according to claim 1, characterized in that: The rear template is provided with a first sliding groove, and the first side core is slidably arranged in the first sliding groove.

5. The set-top box chassis frame mold according to claim 1, characterized in that: The rear template is provided with a second slide groove, and the second side core can be slidably arranged in the second slide groove.

6. The set-top box chassis frame mold according to claim 1, characterized in that: A fixing seat is provided on the rear template, and the cylinder is arranged on the fixing seat.

7. The set-top box chassis frame mold according to claim 6, characterized in that: A first sensor is provided on the fixing seat, a first connecting rod is provided on the first side core, a first blocking ring is sleeved on the first connecting rod, and the first blocking ring is used to trigger the first sensor.

8. The set-top box chassis frame mold according to claim 1, wherein: The front template is provided with a receiving groove, which is cross-shaped. The front mold core is located in the middle of the bottom of the receiving groove. After the mold is closed, the first side core and the second side core extend into the receiving groove.

9. The set-top box chassis frame mold according to claim 1, characterized in that: The front mold core has a first shaping surface, and the first shaping surface is used to form a required structure on the top surface of the frame.

10. The set-top box chassis frame mold according to claim 1, characterized in that: The rear mold core is provided with a second shaping surface, and the second shaping surface is used to form a required structure on the bottom surface of the frame.

Images