CN213919434U - Injection mold for producing refrigerator panel - Google Patents

Abstract

The utility model relates to an injection mold for producing refrigerator panel, including last mold core and lower mold core, the mold core middle part is provided with the shaping core down, the lower mold core lower extreme is provided with the slope and penetrates ejecting device in the shaping mold core, ejecting device includes the third lifter group that will outer buckle ejecting first lifter group, will interior buckle ejecting second lifter group and shaping sand grip, shaping core middle part is provided with the shaping block group that the buckle was hidden in the shaping. This application has characteristics such as convenient drawing of patterns, improvement production efficiency.

Description

Injection mold for producing refrigerator panel

Technical Field

The application relates to the technical field of injection molds, in particular to an injection mold for producing a refrigerator panel.

Background

At present, an injection mold is a tool for producing plastic products and is also a tool for endowing the plastic products with complete structures and accurate sizes. Injection molding is a process used to mass produce parts of some complex shapes. Specifically, the plastic melted by heating is injected into a mold cavity from an injection molding machine at high pressure, and a formed product is obtained after cooling and solidification.

Present refrigerator panel is as shown in fig. 8 and fig. 9, the refrigerator panel is because to be connected with the plastic accessories of multiple refrigerator, so buckle on surface etc. is more, and the orientation diverse of buckle, to the outer buckle of the outside slope of refrigerator panel, to the protruding interior buckle in the refrigerator panel, refrigerator panel middle part injection moulding is fluted, be provided with hidden buckle in the recess, the even louvre of seting up in surface of refrigerator panel, the back of refrigerator panel is provided with the sand grip of many perpendicular to drawing of patterns directions.

The above prior art solutions have the following drawbacks: when the refrigerator panel is directly injection-molded by the injection mold, the snap molding of the side of the refrigerator panel periphery is fast, but may be difficult when the refrigerator panel is removed from the mold.

SUMMERY OF THE UTILITY MODEL

In order to facilitate the refrigerator panel to be taken down from the injection mold, the application provides the injection mold for producing the refrigerator panel.

The above object of the present application is achieved by the following technical solutions:

the utility model provides an injection mold for producing refrigerator panel, includes mold core and lower mold core, the mold core middle part is provided with the shaping core down, the lower mold core lower extreme is provided with the slope and penetrates ejecting device in the shaping mold core, ejecting device includes the third lifter group with the ejecting first lifter group of outer buckle, the ejecting second lifter group of interior buckle and shaping sand grip, shaping core middle part is provided with the shaping block group that the buckle was hidden in the shaping.

Through adopting above-mentioned technical scheme, the refrigerator panel carries out injection moulding between shaping core and last mould core, multiple buckle on the refrigerator panel will be pegged graft in the shaping core with the angle of difference after the shaping, first oblique ejector pin group this moment, the oblique ejector pin of second group, the oblique ejector pin of third group is together inclined ejecting when making the refrigerator panel by ejecting, various buckles can directly break away from with shaping core, can directly take off the refrigerator panel this moment, it is very convenient, the damage etc. that the refrigerator panel caused because of taking off unsmooth simultaneously has been reduced, the product quality is improved.

Preferably, the lower mold core is close to the middle part of one end of the upper mold core is provided with a mounting groove, the molding mold core is fixed in the mounting groove through a bolt, and the middle part of the upper mold core is fixed with a molding cavity matched with the molding mold core through a bolt.

Through adopting the above-mentioned technical scheme, there are more characteristics on the refrigerator panel, more groove and buckle, thereby make and will appear wearing and tearing on long-time use back shaping core and the shaping die cavity, and then influence the precision of injection moulding product, if shaping core and the integrative setting of lower die core, shaping die cavity and the integrative setting of last die core, be not very good maintenance when wearing and tearing appear, thereby improve cost of maintenance, this scheme sets up shaping core and lower die core and shaping die cavity and last die core components of a whole that can function independently, make only need maintain or change shaping core and shaping die cavity just can when wearing and tearing appear or damage, it is more convenient.

Preferably, the lower end of the upper mold core is provided with a plurality of groups of heat dissipation molding lugs which are abutted against the surface of the molding core.

Through adopting above-mentioned technical scheme, after the shaping, go up the mold core and need open, the refrigerator panel will be stayed on mold core down this moment, will be used for the shaping louvre heat dissipation shaping lug direct setting to last mold core lower extreme for when going up the mold core and opening, heat dissipation shaping lug can deviate from the refrigerator panel naturally, thereby makes the louvre take shape, avoids causing the heat dissipation shaping lug drawing of patterns difficulty, causes the refrigerator panel to damage even.

Preferably, two forming stations are arranged between the upper mold core and the lower mold core.

By adopting the technical scheme, two forming stations are arranged between the upper mold core and the lower mold core, so that two refrigerator panels can be directly produced by one-time injection molding, and the production efficiency of the refrigerator panels is accelerated.

Preferably, the upper mold core is provided with two injection molding holes communicated between the molding mold core and the molding cavity corresponding to each molding station.

Through adopting above-mentioned technical scheme, the volume of refrigerator panel is great, and the characteristic is more, only adopt one to mould plastics the mouth when moulding plastics the refrigerator panel, in injecting plastics injection mold with the melt form through one injection moulding mouth, along with the flow of melt plastics, self temperature will descend, appear solidifying gradually, probably make the both ends of refrigerator panel appear the cold junction line when the shaping or even the shaping is incomplete, this will concern the shaping quality of refrigerator panel, set up two injection holes at every shaping station at last mold core in this scheme, make the production of each refrigerator panel all will possess the injection moulding of two injection moulding mouths simultaneously, thereby guarantee to mould plastics and make the melt plastics can flow to every corner at the most suitable temperature, thereby cooling forming, and then guarantee the production quality of refrigerator panel.

Preferably, the forming core comprises a multi-block core block.

Through adopting above-mentioned technical scheme, the structure of refrigerator panel is comparatively complicated, and has great angular difference in height, and the production degree of difficulty of forming core increases this moment, decomposes into many types pellet with forming core in this scheme for the position that the structure is comparatively complicated separately produces, thereby makes this injection mold's production more convenient.

Preferably, the forming block group comprises a plurality of top blocks which are embedded in the forming core and protrude out of the surface of the forming core, a top groove for the top blocks to be inserted is formed in the lower end of the forming cavity, three side walls of the top blocks are tightly abutted against three inner walls of the top groove, and the bottom wall of the top groove is inclined and forms a gap with the top blocks.

Through adopting above-mentioned technical scheme, through with kicking block disect insertion apical trough for the trilateral lateral wall of kicking block supports tightly in the trilateral inner wall of apical trough, leaves a gap this moment and supplies the molten plastics to flow in, flows to the gap between the diapire of apical trough and the outer terminal surface of kicking block again, thereby forms and hides the buckle, and is more convenient during the drawing of patterns.

To sum up, the beneficial technical effect of this application does:

1. the inclined ejector rod group, the second inclined ejector rod group, the third inclined ejector rod group and the fourth inclined ejector rod group are obliquely ejected together, so that the refrigerator panel is ejected out, meanwhile, various buckles can be directly separated from the forming mold core, and the refrigerator panel can be directly taken down, so that the refrigerator panel is very convenient, meanwhile, the damage and the like caused by unsmooth taking of the refrigerator panel are reduced, and the product quality is improved;

2. the forming core and the lower die core as well as the forming cavity and the upper die core are arranged in a split manner, so that the forming core and the forming cavity only need to be maintained or replaced when the forming core and the forming cavity are worn or damaged, and the convenience is improved;

3. with the kicking block disect insertion apical trough for the trilateral lateral wall of kicking block supports tightly in the trilateral inner wall of apical trough, leaves a gap this moment and supplies the molten plastics to flow in, flows to the gap between the diapire of apical trough and the outer terminal surface of kicking block again, thereby forms and hides the buckle, and is more convenient during the drawing of patterns.

Drawings

FIG. 1 is a schematic structural view of an injection mold for producing a refrigerator panel;

FIG. 2 is a schematic structural view of a lower mold core;

FIG. 3 is a schematic structural view of an upper mold core;

FIG. 4 is a schematic view of a forming core;

FIG. 5 is an enlarged view of FIG. 4 at A;

FIG. 6 is a schematic view of an injection mold for producing a refrigerator panel at another angle;

FIG. 7 is a schematic view of a molding cavity;

FIG. 8 is a schematic structural view of a refrigerator panel;

fig. 9 is a schematic structural view of another view angle of the refrigerator panel.

In the figure: 1. an upper mold core; 2. a lower mold core; 3. a forming station; 4. mounting grooves; 5. forming a mold core; 6. a core block; 7. molding a cavity; 8. inserting grooves; 9. an ejection device; 10. a first lifter group; 11. a second lifter group; 12. a third lifter group; 13. ejecting the plate; 14. a forming block group; 15. a top block; 16. a top groove; 17. forming a bump through heat dissipation; 18. and (5) injection molding holes.

Detailed Description

The present application is described in further detail below with reference to figures 1-9.

Referring to fig. 1, an injection mold for producing a refrigerator panel comprises an upper mold core 1 and a lower mold core 2, wherein two molding stations 3 capable of producing the refrigerator panel are formed between the upper mold core 1 and the lower mold core 2.

Referring to fig. 2 and 5, lower mold core 2 has seted up mounting groove 4 at the middle part that is close to upper mold core 1 one end, there is forming core 5 through the bolt fastening in mounting groove 4, forming core 5 includes multiple core piece 6, the core piece 6 that the polylith appearance is different forms the low one end of one end high forming core 5, upper mold core 1 is being close to the one end formation of lower mold core 2 and forming core 5 matched with terminal surface, upper mold core 1 middle part has forming cavity 7 through the bolt fastening, forming cavity 7 protrusion in the terminal surface of upper mold core 1, a core piece 6 is offering the inserting groove 8 that supplies forming cavity 7 to peg graft and form the clearance near the one end of upper mold core 1.

Referring to fig. 1 and 6, an ejection device 9 is arranged at one end of the lower mold core 2 away from the upper mold core 1, and the ejection device 9 includes a first inclined ejector rod group 10, a second inclined ejector rod group 11, and a third inclined ejector rod group 12.

The lower mold core 2 is provided with an ejector plate 13 parallel to the lower mold core 2 on one side far away from the upper mold core 1, the lower ends of the first inclined ejector rod group 10, the second inclined ejector rod group 11 and the third inclined ejector rod group 12 are rotationally fixed on the ejector plate 13 through a rotating shaft, one ends of the first inclined ejector rod group 10, the second inclined ejector rod group 11 and the third inclined ejector rod group 12 far away from the ejector plate 13 penetrate through the lower mold core 2 and then are matched with the same type of core blocks 6, gaps exist among the same type of core blocks 6 at one ends of the first inclined ejector rod group 10, the second inclined ejector rod group 11 and the third inclined ejector rod group 12, accordingly various bayonets on a refrigerator panel are formed, when the ejector plate 13 moves towards one end of the lower mold core 2, the first inclined ejector rod group 10, the second inclined ejector rod group 11 and the third inclined ejector rod group 12 eject the formed refrigerator panel, and meanwhile, the ejecting direction is inclined, and accordingly, the ejector plate is directly separated from various buckles.

Referring to fig. 4 and 7, the core piece 6 sets up the shaping piece group 14 in inserting groove 8, shaping piece group 14 includes that the polylith interference is pegged graft kicking block 15 on core piece 6, shaping die cavity 7 has seted up the kicking groove 16 in the one end that is close to core piece 6, when the compound die, kicking block 15 is pegged graft in kicking groove 16, there are trilateral inside wall that supports tightly in kicking groove 16 in the lateral wall all around of kicking block 15, the diapire of kicking groove 16 is the slope form, there is the clearance between the diapire of kicking groove 16 and kicking block 15, make fused plastics can form stealthy buckle in shaping piece group 14 department during injection molding, when the die sinking, stealthy buckle can follow the refrigerator panel and directly deviate from.

Referring to fig. 1 and 3, a plurality of sets of heat dissipation forming protrusions 17 are integrally and convexly arranged on one end surface of the upper mold core 1 close to the lower mold core 2, and the heat dissipation forming protrusions 17 are directly abutted against the surface of the forming mold core 5, so that heat dissipation holes in the refrigerator panel are formed.

Two sets of four injection molding holes 18 are formed in one end, far away from the lower mold core 2, of the upper mold core 1, every two injection molding holes 18 correspond to one molding station 3, and the injection molding holes 18 are directly communicated between the molding mold core 5 and the molding cavity 7, so that a molten plastic shell enters between the molding mold core 5 and the molding cavity 7 along the injection molding holes 18 during injection molding and is rapidly molded.

The implementation principle of the embodiment is as follows:

when the refrigerator panel is produced by the injection mold, the upper mold core 1 and the lower mold core 2 are assembled, then an injection nozzle of an injection molding machine is directly inserted into an injection molding hole 18 on the upper mold core 1, then the upper mold core 1 and the lower mold core 2 are directly injected, molten plastic directly flows along gaps between the molding mold core 5 and the molding cavity 7 as well as between the molding mold core 1, after all the gaps are filled, the upper mold core 1 is directly opened after a certain time, the molding cavity 7 and the heat dissipation molding lug 17 are taken off from the refrigerator panel, at the moment, the first inclined ejector rod group 10, the second inclined ejector rod group 11 and the third inclined ejector rod group 12 are obliquely ejected, so that the refrigerator panel is directly ejected, and at the moment, two refrigerator panels between the upper mold core 1 and the lower mold core 2 can be manually taken off.

The embodiments of the present invention are preferred embodiments of the present application, and the scope of protection of the present application is not limited by the embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (7)

1. The utility model provides an injection mold for producing refrigerator panel which characterized in that: including last mold core (1) and lower mold core (2), mold core (2) middle part is provided with forming core (5) down, mold core (2) lower extreme is provided with the slope and penetrates forming core (5) interior ejecting device (9), ejecting device (9) are including the first oblique ejector pin group (10) ejecting with outer buckle, with interior buckle ejecting second oblique ejector pin group (11) and the third oblique ejector pin group (12) of shaping sand grip, forming core (5) middle part is provided with the shaping and hides shaping block group (14) of buckle.

2. The injection mold for producing a refrigerator panel according to claim 1, wherein: the lower mold core (2) is close to the middle part of one end of the upper mold core (1) and is provided with a mounting groove (4), the forming mold core (5) is fixed in the mounting groove (4) through a bolt, and the middle part of the upper mold core (1) is fixed with a forming mold cavity (7) matched with the forming mold core (5) through a bolt.

3. The injection mold for producing a refrigerator panel according to claim 2, wherein: the lower end of the upper mold core (1) is provided with a plurality of groups of heat dissipation molding lugs (17) which are abutted against the surface of the molding core (5).

4. The injection mold for producing a refrigerator panel according to claim 3, wherein: two forming stations (3) are arranged between the upper mold core (1) and the lower mold core (2).

5. The injection mold for producing a refrigerator panel according to claim 4, wherein: the upper mold core (1) is provided with two injection molding holes (18) corresponding to each molding station (3) and communicated between the molding mold core (5) and the molding cavity (7).

6. The injection mold for producing a refrigerator panel according to claim 5, wherein: the forming core (5) comprises a plurality of core blocks (6).

7. The injection mold for producing a refrigerator panel according to claim 6, wherein: the forming block group (14) comprises a plurality of top blocks (15) which are embedded in the forming core (5) and protrude out of the surface of the forming core (5), a top groove (16) for the top blocks (15) to be inserted is formed in the lower end of the forming cavity (7), three side walls of the top blocks (15) are abutted against three inner walls of the top groove (16), and the bottom wall of the top groove (16) is inclined and forms a gap between the top blocks (15).

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