Novel injection mold

Abstract

The utility model discloses a novel injection mold which comprises a mold body, the mold body comprises an upper mold and a lower mold which are oppositely arranged, the upper mold comprises an upper top plate and an upper mold plate arranged at the lower end of the upper top plate, and the lower mold comprises a lower bottom plate, a lower mold plate arranged at the upper end of the lower bottom plate and an ejector plate arranged between the lower mold and the lower bottom plate; the upper mold plate is arranged above the lower mold plate in a liftable mode, a fixing structure is arranged between the upper mold plate and the lower mold plate, an injection molding cavity is formed in the upper surface of the lower mold plate, a runner communicated with the injection molding cavity is further formed in the upper surface of the lower mold plate, liquid injection nozzles are arranged on the two sides of the upper mold plate and the two sides of the lower mold plate, and the liquid injection nozzles are communicated with the injection molding cavity and the runner respectively; the plastic part can be quickly subjected to injection molding, the molding effect is good, the injection molding efficiency is high, the precision is high, separation is convenient, and the practicability is high.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic part injection molding, in particular to a novel injection mold. Background Art

[0002] In the prior art, injection molds are widely used in various fields of plastic product processing. Existing plastic parts are often injection-molded using injection molds. Existing injection molds often have problems such as difficult injection molding, it is difficult for the formed plastic parts and the sprue to separate from the forming cavity and the runner of the injection mold, and the formed plastic parts have poor forming effects, low injection efficiency, and low precision.

[0003] In view of the problems in the related art that existing injection molds often have difficulties in injection molding, it is difficult for the formed plastic parts and the sprue to separate from the forming cavity and the runner of the injection mold, and the formed plastic parts have poor forming effects, low injection efficiency, and low precision, there is still a lack of a better technical solution. Summary of the Utility Model

[0004] In view of this, it is necessary to provide a novel injection mold to at least solve the problems in the related art that existing injection molds often have difficulties in injection molding, it is difficult for the formed plastic parts and the sprue to separate from the forming cavity and the runner of the injection mold, and the formed plastic parts have poor forming effects, low injection efficiency, and low precision.

[0005] An embodiment of the present application provides a novel injection mold, which includes a mold body. The mold body includes an upper mold and a lower mold arranged oppositely. The upper mold includes an upper top plate and an upper template arranged at the lower end of the upper top plate. The lower mold includes a lower bottom plate, a lower template arranged at the upper end of the lower bottom plate, and an ejector plate arranged between the lower mold and the lower bottom plate. The upper template is arranged above the lower template in a liftable manner, and a fixing structure is arranged between the upper template and the lower template. An injection cavity is arranged on the upper surface of the lower template, and a runner communicating with the injection cavity is also arranged on the upper surface of the lower template. Injection nozzles are arranged on both sides of the upper template and both sides of the lower template, and the injection nozzles are respectively communicated with the injection cavity and the runner. Among them, before the plastic part is injection-molded, the upper template covers the lower template and is locked by the fixing structure, and the liquid plastic enters the injection cavity and the runner through the injection nozzles. After the plastic part is injection-molded, the fixing structure and the upper template are opened, and the plastic part is lifted by the ejector plate, so that the plastic part is separated from the injection cavity and the runner.

[0006] In one embodiment, a connecting portion is provided at the upper end of the upper top plate, and the upper top plate is connected to an external driving device through the connecting portion; wherein, the external driving device drives the upper top plate to perform a lifting motion through the connecting portion, so as to control the upper template and the lower template to be closed or opened, and further control the upper template to cover or open at the injection molding cavity.

[0007] In one embodiment, the lower bottom plate is provided with mounting holes, and a ejector plate moving area is provided between the upper end of the lower bottom plate and the lower end of the lower template. A first guide post penetrating through the lower template is provided on the upper surface of the ejector plate, and the ejector plate passes through the mounting holes and is in transmission connection with an external driving device; wherein, the external driving device drives the ejector plate to perform a lifting motion along the direction of the first guide post in the ejector plate moving area, so as to eject the plastic parts in the injection molding cavity and the runner.

[0008] In one embodiment, ejector pins are provided on the upper surface of the ejector plate, and ejector pin holes adapted to the ejector pins are provided through the lower template. The ejector pins are arranged through the ejector pin holes on the upper surfaces of the injection molding cavity and the runner; wherein, the external driving device drives the ejector pins to perform a lifting motion through the ejector pin plate, so that the ejector pins pass through the ejector pin holes to eject the plastic parts in the injection molding cavity and the runner.

[0009] In one embodiment, guide sleeves are provided on the lower template, and second guide posts adapted to the guide sleeves are provided on the lower surface of the upper template; wherein, when the upper template and the lower template are closed, the second guide posts are completely inserted into the guide sleeves; when the upper template and the lower template are opened, the upper ends of the second guide posts are exposed outside the guide sleeves.

[0010] In one embodiment, the fixing structure includes first fixing bolts fixed on the left and right sides of the upper template, second fixing bolts fixed on the left and right sides of the lower template, and a fixing connecting piece arranged between the first fixing bolts and the second fixing bolts; wherein, when the upper template covers the upper surface of the lower template, the first fixing bolts and the second fixing bolts are locked through the fixing connecting piece, so that the upper template is closely attached to the upper surface of the lower template.

[0011] In one embodiment, first fixing holes are provided on the left and right sides of the upper template, and the first fixing bolts are screwed to the left and right sides of the upper template through the first fixing holes; second fixing holes are provided on the left and right sides of the lower template, and the second fixing bolts are screwed to the left and right sides of the lower template through the second fixing holes.

[0012] In one embodiment, upper liquid injection ports are provided on both the front and rear sides of the upper template, and the liquid injection nozzles of the upper template are installed at the upper liquid injection ports. Lower liquid injection ports are provided on both the left and right sides of the lower template, and the liquid injection nozzles of the lower template are installed at the lower liquid injection ports. Both the upper liquid injection ports and the lower liquid injection ports are in communication with the injection mold cavity and the runner.

[0013] The beneficial effects of the present utility model are as follows: The present application is reasonably designed and novel in structure. The upper mold and the lower mold can be quickly opened or closed, with good opening and closing effects and smooth operation. A fixed structure is adopted to lock the upper mold and the lower mold during the injection molding when they are closed, resulting in a good closing effect. It can quickly perform injection molding on plastic parts, with good molding effects, high injection efficiency, high precision, and convenient detachment. At the same time, through the ejection plate moving along the guiding columns, the injection molded parts and the gate in the injection mold cavity and the runner are ejected, with good ejection effects, enabling the injection mold cavity and the runner to be quickly detached from the injection molded parts and the gate, and having strong practicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is the overall structural schematic diagram of the embodiment of the present application;

[0015] Figure 2 is the structural schematic diagram of the upper mold of the embodiment of the present application;

[0016] Figure 3 is the structural schematic diagram of the lower mold of the embodiment of the present application;

[0017] Figure 4 is the structural schematic diagram of the ejection plate of the embodiment of the present application. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0019] It should be noted that when a component is referred to as being "mounted on" another component, it can be directly mounted on the other component or there may also be an intermediate component. When a component is considered to be "disposed on" another component, it can be directly disposed on the other component or there may be an intermediate component at the same time. When a component is considered to be "fixed to" another component, it can be directly fixed to the other component or there may be an intermediate component at the same time.

[0020] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which this utility model belongs. The terms used in the specification of this utility model herein are for the purpose of describing specific embodiments only and are not intended to limit the utility model. The term "or / and" as used herein includes any and all combinations of one or more of the related listed items.

[0021] Please refer to Figures 1 to 4 , a novel injection mold according to an embodiment of the present application, which includes a mold body 100. The mold body 100 includes an upper mold 200 and a lower mold 300 arranged oppositely. The upper mold 200 includes an upper top plate 21 and an upper template 22 provided at the lower end of the upper top plate 21. The lower mold 300 includes a lower bottom plate 31, a lower template 32 provided at the upper end of the lower bottom plate 31, and an ejector plate 33 provided between the lower mold 300 and the lower bottom plate 31. The upper template 22 is liftably arranged above the lower template 32. A fixing structure 400 is provided between the upper template 22 and the lower template 32. An injection cavity 321 is provided on the upper surface of the lower template 32. A runner 322 communicating with the injection cavity 321 is further provided on the upper surface of the lower template 32. Liquid injection nozzles 500 are provided on both sides of the upper template 22 and both sides of the lower template 32. The liquid injection nozzles 500 are respectively communicated with the injection cavity 321 and the runner 322. Wherein, before the plastic part is injection molded, the upper template 22 covers the lower template 32 and is locked by the fixing structure 400. The liquid plastic enters the injection cavity 321 and the runner 322 through the liquid injection nozzles 500. After the plastic part is injection molded, the fixing structure 400 and the upper template 22 are opened, and the plastic part is lifted by the ejector plate 33, so that the plastic part is separated from the injection cavity and the runner 322.

[0022] In order to achieve a better mold closing function, the upper mold 200 and the lower mold 300 can be quickly opened or closed, with good mold opening or closing effect and smooth operation. By adopting the fixing structure 400, during the mold closing and injection molding of the upper mold 200 and the lower mold 300, the fixing structure 400 locks the upper mold 200 and the lower mold 300, with good mold closing effect. The plastic part can be quickly injection molded, with good molding effect of the plastic part, high injection efficiency, high precision, convenient detachment and high product qualification rate.

[0023] In order to achieve the function of the upper top plate 21 and the upper template 22 pressing down for mold closing, in some alternative embodiments, a connecting portion is provided at the upper end of the upper top plate 21. The upper top plate 21 is connected to an external driving device through the connecting portion. Wherein, the external driving device drives the upper top plate 21 to move up and down through the connecting portion, so as to control the mold closing or opening of the upper template 22 and the lower template 32, and further control the covering or opening of the upper template 22 at the injection cavity 321.

[0024] It can be understood that with such a setting, by connecting the connecting part 14 to an external driving device, the external driving device provides a power source for the upper top plate 11 and the upper template to move up and down above the lower template 22, thereby realizing the opening or closing of the upper mold 100 and the lower mold 200.

[0025] In order to realize the ejection function of the ejection plate 33, in some alternative embodiments, the lower bottom plate 31 is provided with mounting holes, an ejection plate moving area is provided between the upper end of the lower bottom plate 31 and the lower end of the lower template 32, the upper surface of the ejection plate 33 is provided with a first guide post 331 penetrating through the lower template 32, and the ejection plate 33 passes through the mounting holes and is in transmission connection with an external driving device; wherein, the external driving device drives the ejection plate 33 to move up and down along the direction of the first guide post 331 in the ejection plate moving area, thereby ejecting the plastic parts in the injection cavity 321 and the runner 322.

[0026] It can be understood that with such a setting, the ejection plate 23 is connected to the external driving device through the mounting holes, and the external driving device thus provides a power source for the ejection plate 23 to move up and down, thereby realizing the ejection function of the molded plastic parts in the injection cavity 321 and the runner 322, and the first guide post 331 has a guiding effect on the ejection plate 33, causing the ejection plate 33 to move along the set direction of the first guide post 331.

[0027] In order to further realize the ejection function of the ejection plate 33 for the molded plastic parts, in some alternative embodiments, the upper surface of the ejection plate 33 is provided with ejector pins 332, the lower template 32 is provided with ejector pin holes 323 adapted to the ejector pins 332, and the ejector pins 332 penetrate through the ejector pin holes 323 and are arranged on the upper surfaces of the injection cavity 321 and the runner 322; wherein, the external driving device drives the ejector pins 332 to move up and down through the ejector pin plate 33, so that the ejector pins 332 pass through the ejector pin holes 323 to eject the plastic parts in the injection cavity 321 and the runner 322.

[0028] It can be understood that with such a setting, by the cooperation of the ejector pins 332 and the ejector pin holes 323, the plastic parts in the injection cavity 321 and the runner 322 are ejected, and the ejection effect is good.

[0029] In order to better realize the mold closing function of the upper template 22 and the lower template 32, in some alternative embodiments, the lower template 32 is provided with guide sleeves 324, and the lower surface of the upper template 22 is provided with second guide posts 221 adapted to the guide sleeves 324; wherein, when the upper template 22 and the lower template 32 are closed, the second guide posts 221 are completely inserted into the guide sleeves 324; when the upper template 22 and the lower template 32 are opened, the lower ends of the second guide posts 221 are exposed outside the guide sleeves 324.

[0030] It can be understood that with such a setting, by adopting the guide sleeve 324 and the second guide post 221, the upper template 22 and the lower template 32 have guiding properties during mold closing. Thus, the upper template 22 can be pressed downward along the setting direction of the second guide post 221 onto the upper surface of the lower template 32, and the mold closing effect is good.

[0031] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above-described exemplary embodiments, and without departing from the spirit or basic characteristics of the present utility model, the present utility model can be implemented in other specific forms. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present utility model. Any reference signs in the claims should not be construed as limiting the claimed rights.

[0032] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative manner of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A new type of injection mold, characterized in that: The mold body comprises an upper mold and a lower mold which are arranged opposite to each other, the upper mold comprises an upper top plate and an upper mold plate arranged at the lower end of the upper top plate, the lower mold comprises a lower bottom plate, a lower mold plate arranged at the upper end of the lower bottom plate, and an ejector plate arranged between the lower mold and the lower bottom plate; the upper mold plate can be raised and lowered above the lower mold plate, a fixing structure is arranged between the upper mold plate and the lower mold plate, an injection mold cavity is arranged on the upper surface of the lower mold plate, and a fixing structure is arranged between the upper mold plate and the lower mold plate, the upper surface of the lower mold plate is provided with a fixing structure which ... The upper and lower mold plates are provided with injection nozzles, and the injection nozzles are respectively connected with the injection cavity and the flow channel; before the plastic part is injection-molded, the upper mold plate covers the lower mold plate and is locked by the fixed structure, and the liquid plastic enters the injection cavity and the flow channel through the injection nozzle; after the plastic part is injection-molded, the fixed structure and the upper mold plate are opened, and the plastic part is lifted up by the ejection plate, so that the plastic part is separated from the injection cavity and the flow channel.

2. The new injection mold according to claim 1, characterized in that: A connecting portion is provided at the upper end of the upper top plate, and the upper top plate is connected to an external driving device through the connecting portion; wherein the external driving device drives the upper top plate to perform lifting and lowering movements through the connecting portion, thereby controlling the upper mold plate and the lower mold plate to close or open the mold, and further controlling the upper mold plate to cover or open the injection cavity.

3. The new injection mold according to claim 1, characterized in that: The lower base plate is provided with a mounting hole, an ejector plate activity area is provided between the upper end of the lower base plate and the lower end of the lower mold plate, a first guide column penetrating the lower mold plate is provided on the upper surface of the ejector plate, and the ejector plate is transmission-connected with an external driving device through the mounting hole; wherein the external driving device drives the ejector plate to perform a lifting movement along the direction of the first guide column within the ejector plate activity area, thereby ejecting the plastic parts in the injection cavity and the runner.

4. The new injection mold according to claim 3 is characterized in that: An ejector pin is provided on the upper surface of the ejector plate, and an ejector pin hole matched with the ejector pin is penetrated on the lower mold plate, and the ejector pin passes through the ejector pin hole and is penetrated on the upper surfaces of the injection cavity and the runner; wherein an external driving device drives the ejector pin to perform lifting movement through the ejector pin plate, so that the ejector pin passes through the ejector pin hole to eject the plastic parts in the injection cavity and the runner.

5. The new injection mold according to claim 1, characterized in that: The lower template is provided with a guide sleeve, and the lower surface of the upper template is provided with a second guide column adapted to the guide sleeve; wherein, when the upper template and the lower template are molded together, the second guide column is completely inserted into the guide sleeve; when the upper template and the lower template are opened, the upper end of the second guide column is exposed outside the guide sleeve.

6. The new injection mold according to claim 1, characterized in that: The fixing structure includes a first fixing bolt fixed to the left and right sides of the upper template, a second fixing bolt fixed to the left and right sides of the lower template, and a fixing connecting plate, wherein the fixing connecting plate is arranged between the first fixing bolt and the second fixing bolt; wherein, when the upper template covers the upper surface of the lower template, the first fixing bolt and the second fixing bolt are locked by the fixing connecting plate, so that the upper template is tightly attached to the upper surface of the lower template.

7. The new injection mold according to claim 6, characterized in that: The upper template is provided with first fixing holes on the left and right sides, and the first fixing bolts are screwed to the left and right sides of the upper template through the first fixing holes; the lower template is provided with second fixing holes on the left and right sides, and the second fixing bolts are screwed to the left and right sides of the lower template through the second fixing holes.

8. The new injection mold according to claim 1, characterized in that: The upper template is provided with upper liquid injection ports on the front and rear sides, and the liquid injection nozzle of the upper template is installed at the upper liquid injection port. The lower template is provided with lower liquid injection ports on the left and right sides, and the liquid injection nozzle of the lower template is installed at the lower liquid injection port. The upper liquid injection port and the lower liquid injection port are both connected with the injection cavity and the runner.

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