CN214163811U - Injection mold capable of casting different shapes - Google Patents

Abstract

The utility model belongs to the technical field of the plastics processing technique and specifically relates to, relate to a but injection mold of casting different shapes, including the mould base, the mould base includes mould pedestal, callus on the sole, the mould pedestal is connected with the callus on the sole, and mould base top is connected with the guide pillar, the mould pedestal mounting has the die block, mould base top is provided with down the framed, install the mould body in the framed, install the interchangeable die body in the mould body, the interchangeable die body includes square phantom, cylinder phantom, the die pressing body is installed at the top of interchangeable die body, the die pressing body includes framed, last die body, top mould, go up framed down the framed install locking device. The utility model discloses an injection mold can cast the finished product of different shapes through the mode of changing the interchangeable die body, improves injection mold's utilization ratio.

Description

Injection mold capable of casting different shapes

Technical Field

The utility model relates to a plastic processing application technology field, specifically speaking relates to an injection mold of castable different shapes.

Background

An injection mold is a tool for producing plastic products; the injection molding is a processing method used for batch production of parts with complex shapes, and particularly relates to a method for injecting heated and melted plastic into a mold cavity from an injection molding machine at high pressure, and obtaining a formed product after cooling and solidification.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a but injection mold of casting different shapes to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above purpose, the utility model provides an injection mold capable of casting different shapes, which comprises a mold base, wherein the mold base comprises a mold base body and a foot pad, the foot pad is connected to the bottom of the mold base body, four guide posts are connected to the top of the mold base body, the guide posts are of a cylindrical structure, a mold plate groove is arranged on the top surface of the mold base body, a demolding groove penetrating through the bottom surface of the mold base body is arranged at the bottom of the mold plate groove, the demolding groove is of a cylindrical groove structure, a bottom mold plate is arranged in the mold plate groove, a demolding body is arranged at the bottom of the bottom mold plate, the demolding body is of a cylindrical structure, the demolding body is in inserting fit with the demolding groove, a lower mold frame is connected to the top of the mold plate groove, a mold body is arranged in the lower mold frame, a replacing groove is arranged on the inner side surface of the mold body, and the replacing groove is of a T-shaped groove structure, the replaceable mold body comprises a square mold body and a cylindrical mold body, an insertion body is arranged on the side face of the replaceable mold body, the insertion body is of a T-shaped protruding structure, the insertion body is in insertion fit with the replaceable groove, a pressing mold body is mounted at the top of the replaceable mold body, the pressing mold body comprises a top mold, an upper mold frame and an upper mold body which are mounted in the replaceable mold body, the bottom of the upper mold body is connected with the top mold and the upper mold frame, the top mold is arranged in the upper mold frame, four guide grooves penetrating through the surface of the upper mold body are formed in the surface of the upper mold body, the guide grooves are of a cylindrical groove structure, the guide columns are in insertion fit with the guide grooves, an injection inlet is formed in the surface of the upper mold body, an injection outlet is formed in the side face of the top mold, and the injection inlet is communicated with the injection outlet.

As a further improvement of the technical scheme, the inner side surfaces of the upper mold frame and the lower mold frame are provided with fixing grooves, the fixing grooves are of square groove structures, the side surfaces of the mold bodies are correspondingly provided with fixing bodies, the fixing bodies are of square protruding structures, and the fixing bodies are in plug-in fit with the fixing grooves.

As a further improvement of the technical scheme, the side surfaces of the upper die frame and the lower die frame are provided with locking devices, each locking device comprises a locking body arranged on the side surface of the upper die frame and a locking groove arranged on the side surface of the lower die frame, each locking body comprises a sliding body and a connecting body, the connecting body is connected with the sliding body, one end of the connecting body, which is close to the sliding body, is provided with a locking clamping groove, the locking clamping groove is of a concave groove structure, the sliding body is of a right-angle trapezoidal structure, the locking groove comprises a groove body and a locking structure, the locking structure is connected in the groove body, the locking structure comprises a locking bolt and a locking spring, the middle surface of the locking bolt is provided with a wafer, one section of the locking spring is connected to the groove body, the other end of the locking spring is connected to the wafer, and the locking bolt is of a cylinder structure, the locking bolt is matched with the locking clamping groove in a clamping mode.

As a further improvement of this technical scheme, the mould draw-in groove that runs through its surface is seted up to lower mould frame side, mould draw-in groove in-connection has fixing device, fixing device includes fixed cylinder, reset spring, fixed cylinder's surface is provided with the card body, reset spring's one end connect in the card body, reset spring's the other end connect in the inside of mould draw-in groove, the specific side of mould is corresponding has seted up the fixed orifices, the fixed orifices is cylindrical groove structure, fixed cylinder with the fixed orifices cooperation of pegging graft.

As a further improvement of the technical scheme, an exhaust outlet is formed in the side surface of the upper die body, an exhaust inlet is formed in the side surface of the top die body, and the exhaust inlet is communicated with the exhaust outlet.

Compared with the prior art, the beneficial effects of the utility model are that:

1. in the injection mold capable of casting different shapes, the design of adding the replaceable mold body to the mold body is adopted, different types of mold bodies can be replaced according to needs to cast products with different shapes, and the utilization rate of injection mold equipment is greatly improved.

2. In the injection mold capable of casting different shapes, the locking device and the fixing device are adopted, so that components in the injection mold are ensured to be stable when the injection mold operates, and the probability of producing defective products is reduced.

Drawings

FIG. 1 is a schematic view of the entire structure of embodiment 1;

fig. 2 is a schematic structural view of a mold base in embodiment 1;

FIG. 3 is a schematic view of the structure of a base mold plate according to example 1;

FIG. 4 is a schematic view of the lower mold frame of embodiment 1;

FIG. 5 is a schematic view of the structure of the mold body of example 1;

FIG. 6 is a schematic view of a cubic mold structure according to embodiment 1;

FIG. 7 is a schematic view of the structure of a fixing device according to embodiment 1;

FIG. 8 is a schematic sectional view of the mold clamping groove of embodiment 1;

FIG. 9 is a schematic view showing a disassembled structure of the locking device of embodiment 1;

FIG. 10 is a schematic structural view of a lock device according to embodiment 1;

FIG. 11 is a schematic structural view of the press mold of example 1;

FIG. 12 is a schematic view showing a structure of a fixing groove in embodiment 1;

fig. 13 is a schematic view of the top mold structure of example 1.

The various reference numbers in the figures mean:

100. a mold base; 110. a mold base; 111. a template slot; 112. a demoulding groove; 113. a bottom template; 114. demolding; 120. a foot pad; 130. a guide post; 200. a lower mold frame; 210. a mold body; 211. replacing the groove; 212. a fixed body; 220. the mould body can be replaced; 221. a square body model; 222. a cylindrical phantom; 223. an insertion body; 230. fixing grooves; 240. a locking device; 241. a locking body; 242. a locking groove; 243. a sliding body; 244. a linker; 245. locking the clamping groove; 246. a trough body; 247. a locking structure; 248. locking the bolt; 2481. a wafer; 249. a locking spring; 250. a mold clamping groove; 251. a fixing device; 252. fixing the cylinder; 253. a return spring; 254. a card body; 255. a fixing hole; 300. pressing a die body; 310. ejecting the mold; 311. a spray outlet; 312. an exhaust gas inlet; 320. putting a mold frame; 330. feeding a mold body; 331. A guide groove; 332. an injection inlet; 333. and an exhaust outlet.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Example 1

Referring to fig. 1-13, the present embodiment provides an injection mold capable of casting different shapes, including a mold base 100, the mold base 100 includes a mold base body 110 and a foot pad 120, the bottom of the mold base body 110 is connected with the foot pad 120, the top of the mold base body 110 is connected with four guide posts 130, the guide posts 130 are in a cylindrical structure, the top surface of the mold base body 110 is provided with a mold plate groove 111, the bottom of the mold plate groove 111 is provided with a mold release groove 112 penetrating the bottom surface of the mold base body 110, the mold release groove 112 is in a cylindrical groove structure, a bottom mold plate 113 is installed in the mold plate groove 111, the bottom of the bottom mold plate 113 is provided with a mold release body 114, the mold release body 114 is in a cylindrical structure, the bottom mold plate 113 is in insertion fit with the mold release groove 111 through the mold release body 114 and the mold release groove 112, the top of the mold plate groove 111 is connected with a lower mold frame 200, a mold body 210 is installed in the lower mold frame 200, the inner side surface of the mold body 210 is provided with a replacement groove 211, the replaceable groove 211 is of a T-shaped groove structure, the replaceable groove 211 is connected with a replaceable die body 220, the replaceable die body 220 comprises a square die 221 and a cylindrical die 222, an insertion body 223 is arranged on the side surface of the replaceable die body 220, the insertion body 223 is of a T-shaped protruding structure, the replaceable die body 220 is in insertion fit with the die body 210 through the insertion body 223 and the replaceable groove 211, a die pressing body 300 is installed at the top of the replaceable die body 220, the die pressing body 300 comprises a top die 310, an upper die frame 320 and an upper die body 330 which are installed in the replaceable die body 220, the bottom of the upper die body 330 is connected with the top die 310 and the upper die frame 320, the top die 310 is arranged in the upper die frame 320, four guide grooves 331 penetrating through the surface of the upper die body 330 are formed in the surface of the upper die body 330, the guide grooves 331 are of a cylindrical groove structure, the guide pillars 130 are in insertion fit with the guide grooves 331, the die pressing body 300 can move up and down along the guide pillars 130, a spray inlet 332 is formed in the surface of the upper die body 330, a spray outlet 311 is formed in the side surface of the top die 310, injection inlet 332 communicates with injection outlet 311.

Further, the inner side surfaces of the upper mold frame 320 and the lower mold frame 200 are provided with fixing grooves 230, the fixing grooves 230 are of a square groove structure, the side surfaces of the mold body 210 are correspondingly provided with fixing bodies 212, the fixing bodies 212 are of a square protruding structure, and the mold body 210 is in insertion fit with the upper mold frame 320 and the lower mold frame 200 through the fixing bodies 212 and the fixing grooves 230.

Still further, the side surfaces of the upper mold frame 320 and the lower mold frame 200 are provided with a locking device 240, the locking device comprises a locking body 241 arranged on the side surface of the upper mold frame 320 and a locking groove 242 arranged on the side surface of the lower mold frame 200, the locking body 241 comprises a sliding body 243 and a connecting body 244, the connecting body 244 is connected with the sliding body 243, one end of the connecting body 244 close to the sliding body 243 is provided with a locking groove 245, the locking groove 245 is in a concave groove structure, the sliding body 243 is in a right-angle trapezoidal body structure, the locking bolt 248 is pushed to the outside under the pressing action of the sliding body 243 after the tail end of the locking bolt 248 contacts with the oblique edge of the sliding body 243, the locking bolt 242 comprises a groove body 246 and a locking structure 247, the locking structure 247 is connected in the groove body 246 and comprises a locking bolt 248 and a locking spring 249, the middle surface of the locking bolt 248 is provided with a disc 2481, one section of the locking spring 249 is connected to the groove body 246, the other end of the locking spring 249 is connected to the disc 2481, the locking bolt 248 is of a cylindrical structure, and the locking structure 247 and the locking body 241 are in snap fit through the locking bolt 248 and the locking groove 245, so that the upper mold frame 320 and the lower mold frame 200 are tightly combined.

Furthermore, a mold clamping groove 250 penetrating through the surface of the lower mold frame 200 is formed in the side surface of the lower mold frame 200, a fixing device 251 is connected in the mold clamping groove 250, the fixing device 251 comprises a fixing cylinder 252 and a return spring 253, a clamping body 254 is arranged on the surface of the fixing cylinder 252, one end of the return spring 253 is connected to the clamping body 254, the other end of the return spring 253 is connected to the inside of the mold clamping groove 250, a fixing hole 255 is correspondingly formed in the side surface of the mold body 210, the fixing hole 255 is of a cylindrical groove structure, the fixing device 251 and the mold body 210 are in inserted connection fit through the fixing cylinder 252 and the fixing hole 255, and the mold body 210 is ensured to be fixed in the lower mold frame 200.

In addition, the side surface of the upper mold body 330 is provided with an exhaust outlet 333, the side surface of the top mold 310 is provided with an exhaust inlet 312, and the exhaust inlet 312 is communicated with the exhaust outlet 333, so that when plastic material is injected into the injection mold, air in the mold needs to be evacuated.

The injection mold preferably adopts P-20 pre-hardened steel, the tensile strength of the steel is 253-doped 500MPa, the elongation is more than or equal to 24 percent, the steel belongs to high-quality low-carbon steel, cold extrusion and carburizing hardened steel, the steel has low strength and good toughness, plasticity and weldability, and is suitable for being used as the material of the injection mold.

The working principle of the injection mold capable of casting different shapes of the embodiment is as follows: firstly, selecting a die body with a required shape, such as a square die 221 of a replaceable die body 220, inserting an inserting body 223 of the square die 221 in alignment with a replacing groove 211 of a die body 210, installing the square die 221 in the die body 210, then inserting a fixing body 212 of the die body 210 in alignment with a fixing groove 230 of a lower die frame 200, pulling a fixing cylinder 252 of a fixing device 251 in a die clamping groove 250 on the side surface of the lower die frame 200 outwards during insertion, releasing the fixing cylinder 252 after the die body 210 is inserted in the lower die frame 200, restoring the fixing cylinder 252 to the original position under the repulsive force of a return spring 253 which is positioned in the fixing device 251 and is elastically deformed with the inner side surface of the die clamping groove 250, inserting the tail end of the fixing cylinder 252 into a fixing hole 255 on the side surface of the die body 210 to complete the fixed installation of the die body 210 and the lower die frame 200, moving the press die body 300 downwards along a guide post 130 until the fixing groove 230 of an upper die frame 320 of the press body 300 is aligned with the fixing body 212 of the die body 210 to complete the inserted installation, at this time, the locking body 241 on the side of the upper mold frame 320 is inserted into the locking groove 242 on the side of the lower mold frame 200, under the action of the inclined edge of the sliding body 243 of the locking body 241, the end of the locking bolt 248 of the locking structure 247 in the locking groove 242 is pressed so that the locking bolt 248 moves in the direction away from the sliding body 241 until the sliding body 241 contacts the bottom of the locking groove 242, under the action of the repulsive force of the locking spring 249 of the locking mechanism 247, which is elastically deformed between the disc 2481 and the inner side of the groove body 246 of the locking groove 242, the locking bolt 248 is inserted in alignment with the locking groove 245 of the locking body 241, the tight combination of the upper mold frame 320 and the lower mold frame 200 is completed, at this time, the injection mold is completely assembled, the plastic material is injected from the injection inlet 332 on the surface of the upper mold body 330 of the compression mold body 300, and enters the inside of the injection mold from the injection outlet 311 on the side of the top mold 310 communicated with the injection inlet 332, during injection, air in the mold enters from an exhaust inlet 312 on the side surface of the top mold 310 and is finally discharged from a discharge outlet 333 on the side surface of the upper mold body 330 communicated with the exhaust inlet 312, when the gap of an exhaust slot hole is not more than 0.1mm, the molten material cannot escape from an exhaust hole under normal material temperature and injection pressure, after the finished product is manufactured, the mold pressing body 300 moves upwards along the guide post 130 to expose the manufactured finished product, the demolding body 114 of the bottom mold plate 113 is lifted upwards to drive the bottom mold plate 113 to move upwards, and the finished product is pushed away from the mold, so that the manufactured finished product can be obtained.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the description in the above embodiments and the description is only preferred examples of the present invention, and is not intended to limit the present invention, and that the present invention can have various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications all fall into the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (5)

1. An injection mold capable of casting different shapes, which comprises a mold base (100), and is characterized in that: the die base (100) comprises a die base body (110) and a foot pad (120), the foot pad (120) is connected to the bottom of the die base body (110), four guide posts (130) are connected to the top of the die base body (110), the guide posts (130) are of a cylindrical structure, a die plate groove (111) is formed in the top surface of the die base body (110), a demolding groove (112) penetrating through the bottom surface of the die base body (110) is formed in the bottom of the die plate groove (111), the demolding groove (112) is of a cylindrical groove structure, a bottom die plate (113) is installed in the die plate groove (111), a demolding body (114) is arranged at the bottom of the bottom die plate (113), the demolding body (114) is of a cylindrical structure, the demolding body (114) is in plug-in fit with the demolding groove (112), and the top of the die plate groove (111) is connected with a lower die frame (200), the die comprises a lower die frame (200), a die body (210) is installed in the lower die frame (200), a replacing groove (211) is formed in the inner side surface of the die body (210), the replacing groove (211) is of a T-shaped groove structure, the replacing groove (211) is connected with a replaceable die body (220), the replaceable die body (220) comprises a square die (221) and a cylindrical die (222), an inserting body (223) is arranged on the side surface of the replaceable die body (220), the inserting body (223) is of a T-shaped protruding structure, the inserting body (223) is in inserting fit with the replacing groove (211), a die pressing body (300) is installed at the top of the replaceable die body (220), the die pressing body (300) comprises a top die (310), an upper die frame (320) and an upper die body (330) which are installed in the replaceable die body (220), the bottom of the upper die body (330) is connected with the top die (310) and the upper die frame (320), the top die (310) is arranged in the upper die frame (320), four guide grooves (331) penetrating through the surface of the upper die body (330) are formed in the surface of the upper die body, the guide grooves (331) are of cylindrical groove structures, the guide columns (130) are in plug fit with the guide grooves (331), the surface of the upper die body (330) is provided with injection inlets (332), the side surface of the top die (310) is provided with injection outlets (311), and the injection inlets (332) are communicated with the injection outlets (311).

2. Injection mold capable of casting different shapes according to claim 1, characterized in that: the inner side surfaces of the upper die frame (320) and the lower die frame (200) are provided with fixing grooves (230), the fixing grooves (230) are of a square groove structure, fixing bodies (212) are correspondingly arranged on the side surfaces of the die bodies (210), the fixing bodies (212) are of a square protruding structure, and the fixing bodies (212) are in plug-in fit with the fixing grooves (230).

3. Injection mold capable of casting different shapes according to claim 1, characterized in that: the side surface of the upper die frame (320) and the lower die frame (200) is provided with a locking device (240), the locking device comprises a locking body (241) arranged on the side surface of the upper die frame (320) and a locking groove (242) arranged on the side surface of the lower die frame (200), the locking body (241) comprises a sliding body (243) and a connecting body (244), the connecting body (244) is connected with the sliding body (243), one end of the connecting body (244) close to the sliding body (243) is provided with a locking clamping groove (245), the locking clamping groove (245) is of a concave groove structure, the sliding body (243) is of a right-angle trapezoidal structure, the locking groove (242) comprises a groove body (246) and a locking structure (247), the locking structure (247) is connected with the locking structure (247) in the groove body (246), and the locking structure (247) comprises a locking bolt (248) and a locking spring (249), the middle surface of the locking bolt (248) is provided with a circular piece (2481), one section of the locking spring (249) is connected to the groove body (246), the other end of the locking spring (249) is connected to the circular piece (2481), the locking bolt (248) is of a cylindrical structure, and the locking bolt (248) is in clamping fit with the locking clamping groove (245).

4. Injection mold capable of casting different shapes according to claim 1, characterized in that: the die clamping groove (250) penetrating through the surface of the lower die frame (200) is formed in the side face of the lower die frame, a fixing device (251) is connected into the die clamping groove (250), the fixing device (251) comprises a fixing cylinder (252) and a return spring (253), a clamping body (254) is arranged on the surface of the fixing cylinder (252), one end of the return spring (253) is connected to the clamping body (254), the other end of the return spring (253) is connected to the inside of the die clamping groove (250), fixing holes (255) are formed in the side face of the die body (210) correspondingly, the fixing holes (255) are of cylindrical groove structures, and the fixing cylinder (252) is in plug-in fit with the fixing holes (255).

5. Injection mold capable of casting different shapes according to claim 1, characterized in that: an exhaust outlet (333) is formed in the side surface of the upper die body (330), an exhaust inlet (312) is formed in the side surface of the top die (310), and the exhaust inlet (312) is communicated with the exhaust outlet (333).

Images