High-precision injection mold and mobile phone shell injection molding equipment

Abstract

The utility model provides a high-precision injection mold and mobile phone shell injection molding equipment. The high-precision injection mold comprises an upper mold set, a lower mold set, an inclination guiding assembly, a slide mechanism and an ejection mechanism, the upper mold set and the lower mold set are oppositely arranged, the upper mold set comprises an upper mold plate and an upper mold core which are connected, and the lower mold set comprises a lower mold plate and a lower mold core which are connected; the slide mechanism comprises a first slide block, a second slide block, a third slide block and a fourth slide block which are integrally formed, a first containing groove, a second containing groove, a third containing groove and a fourth containing groove are formed in the periphery of the lower mold core, the first slide block is installed in the first containing groove, and the second slide block is installed in the fourth containing groove. The second slide block is installed in the second containing groove, the third slide block is installed in the third containing groove, and the fourth slide block is installed in the fourth containing groove.

Description

Technical Field

[0001] The present invention relates to the field of injection molds, and in particular to a high-precision injection mold and a mobile phone case injection molding device. Background Art

[0002] As an important process equipment in modern manufacturing industry, molds play an important role in industrial production. Injection molds are tools for producing plastic products. Specifically, they are used to inject heated and melted plastic into the mold cavity under high pressure by the injection molding machine, and then cool and solidify to obtain a molded product. The injection mold consists of two parts: the movable mold core and the fixed mold core. The movable mold core is installed on the movable template of the injection molding machine, and the fixed mold core is installed on the fixed template of the injection molding machine. During injection molding, the movable mold core and the fixed mold core are closed to form a casting system and a cavity. When opening the mold, the movable mold core and the fixed mold core are separated to remove the plastic product, and the slide is a mechanism used to drag the product to move.

[0003] For example, a Chinese patent with application number CN201910374262.7 discloses an injection mold, including a front module group, a rear module group, a first row seat, a second row seat and a third row seat, the front module group includes a front template and a front mold core fixedly connected to the front template, the rear module group includes a rear template and a rear mold core fixedly connected to the rear template, and the first row seat, the second row seat and the third row seat can be slidably installed on the rear template.

[0004] However, the structural design of the above injection mold has the following problems during use:

[0005] The first row seat, the second row seat and the third row seat of the above-mentioned injection mold are split, and the first row seat, the second row seat and the third row seat are slidably installed on the rear template, that is, the rear template needs to be provided with a groove to accommodate the first row seat, the second row seat and the third row seat, that is, the slide mechanism is not installed in the mold core, which leads to a processing error between the first row seat, the second row seat and the third row seat and the mold core, and then leads to low mold precision, so that the product needs to be polished after demolding.

[0006] Therefore, there is an urgent need for an injection mold that has an integrated slide and position, high precision, and does not require subsequent polishing of the product. Utility Model Content

[0007] The purpose of the present invention is to overcome the deficiencies in the prior art and to provide a high-precision injection mold and mobile phone case injection molding equipment that is integrated with a row and position, has high precision and does not require subsequent product polishing.

[0008] The purpose of this disclosure is achieved through the following technical solutions:

[0009] A high-precision injection mold, comprising:

[0010] The upper mold group and the lower mold group are arranged relatively to each other, the upper mold group includes an upper mold plate and an upper mold core, the upper mold plate is provided with a liquid injection port, the upper mold core is installed on the upper mold plate, the lower mold group includes a lower mold plate and a lower mold core, the lower mold core is installed on the lower mold plate,

[0011] The high-precision injection mold further includes a guide component, a slide mechanism and an ejection mechanism, wherein the guide component is mounted on the upper mold core, and the guide component and the slide mechanism are slidably arranged;

[0012] The upper mold core, the lower mold core and the slide mechanism jointly form an injection cavity, the injection cavity is communicated with the injection port, the slide mechanism includes a first slide block, a second slide block, a third slide block and a fourth slide block formed in one piece, the periphery of the lower mold core is respectively provided with a first receiving groove, a second receiving groove, a third receiving groove and a fourth receiving groove, the first slide block is installed in the first receiving groove, the second slide block is installed in the second receiving groove, the third slide block is installed in the third receiving groove, and the fourth slide block is installed in the fourth receiving groove; and,

[0013] The ejection mechanism is installed on a side of the lower mold plate away from the upper mold plate, and is used to eject the product from the injection cavity.

[0014] In one embodiment, the first positioning block, the second positioning block, the third positioning block and the fourth positioning block are disposed around the lower mold core.

[0015] In one embodiment, the guide assembly includes a first guide column, a second guide column, a third guide column and a fourth guide column, the upper mold core is respectively provided with a first clamping groove, a second clamping groove, a third clamping groove and a fourth clamping groove, the first slider block is provided with a first oblique groove, one end of the first guide column is located in the first clamping groove and is clamped with the upper mold core, and the other end of the first guide column is located in the first oblique groove;

[0016] The second slider block is provided with a second inclined slot, one end of the second inclined guide column is located in the second slot and is engaged with the upper mold core, and the other end of the second inclined guide column is located in the second inclined slot;

[0017] The third positioning block is provided with a third inclined slot, one end of the third inclined guide column is located in the third slot and is engaged with the upper mold core, and the other end of the third inclined guide column is located in the third inclined slot;

[0018] The fourth row block is provided with a fourth inclined slot, one end of the fourth inclined guide column is located in the fourth slot and is engaged with the upper mold core, and the other end of the fourth inclined guide column is located in the fourth inclined slot.

[0019] In one embodiment, the periphery of the lower mold core is respectively provided with a first avoidance opening, a second avoidance opening, a third avoidance opening and a fourth avoidance opening, one end of the first guide angle column is located in the first avoidance opening, one end of the second guide angle column is located in the second avoidance opening, one end of the third guide angle column is located in the third avoidance opening, and one end of the fourth guide angle column is located in the fourth avoidance opening.

[0020] In one embodiment, there is a first preset angle between the first slider block and the first guide bevel column, there is a second preset angle between the second slider block and the second guide bevel column, there is a third preset angle between the third slider block and the third guide bevel column, there is a fourth preset angle between the fourth slider block and the fourth guide bevel column, and the first preset angle, the second preset angle, the third preset angle and the fourth preset angle are set equally.

[0021] In one embodiment, the ejection mechanism includes a fixed plate assembly, a sliding plate assembly, a connecting plate, a guide column and a ejector rod. The fixed plate assembly is clamped and connected between the lower template and the connecting plate. Both ends of the guide column are respectively connected to the lower template and the connecting plate. The sliding plate assembly is slidably arranged on the guide column. The ejector rod is installed on a side of the sliding plate assembly adjacent to the lower template. The lower template is provided with a through hole communicating with the injection cavity so that the ejector rod passes through the through hole when the sliding plate assembly moves.

[0022] In one embodiment, the sliding plate assembly includes a first sliding plate and a second sliding plate, the first sliding plate is connected to the second sliding plate, the push rod is installed on the first sliding plate, the first sliding plate is provided with a first avoidance hole, the second sliding plate is provided with a second avoidance hole, the guide column is sequentially passed through the first avoidance hole and the second avoidance hole, the connecting plate is provided with a third avoidance hole, and the third avoidance hole is used for an external push pin to pass through so that the first sliding plate and the second sliding plate can slide along the guide column.

[0023] In one embodiment, the sliding plate assembly also includes a fastener, the first sliding plate has a first locking hole, the second sliding plate has a second locking hole, and the fastener is sequentially passed through the first locking hole and the second locking hole to fix the first sliding plate to the second sliding plate.

[0024] In one embodiment, the fixed plate assembly includes a first fixed plate and a second fixed plate, the first fixed plate and the second fixed plate are arranged opposite to each other, the first fixed plate and the second fixed plate are clamped and connected between the lower template and the connecting plate, and the sliding plate assembly is located between the first fixed plate and the second fixed plate.

[0025] A mobile phone case injection molding device comprises the high-precision injection mold described in any one of the above embodiments.

[0026] Compared with the prior art, the present invention has at least the following advantages:

[0027] In the above-mentioned high-precision injection mold, the periphery of the lower mold core is respectively provided with a first accommodating groove, a second accommodating groove, a third accommodating groove and a fourth accommodating groove, the first row block is located in the first accommodating groove, the second row block is located in the second accommodating groove, the third row block is located in the third accommodating groove, and the fourth row block is located in the fourth accommodating groove, that is, the first row block, the second row block, the third row block and the fourth row block are all installed on the lower mold core, so that the lower template does not need to have a row groove, reducing the cumulative tolerance of the lower mold core and the lower template, and because the first row block, the second row block, the third row block and the fourth row block are an integrated molding structure, that is, the first row block, the second row block, the third row block and the fourth row block all move together with the lower mold core, thereby improving the processing accuracy of the mold and avoiding the need for additional polishing steps for the product in the later stage. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present disclosure and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0029] Figure 1 A schematic structural diagram of a high-precision injection mold according to an embodiment;

[0030] Figure 2 for Figure 1 Another structural schematic diagram of the high-precision injection mold shown;

[0031] Figure 3 for Figure 1 Another structural schematic diagram of the high-precision injection mold shown;

[0032] Figure 4 for Figure 1 The structural schematic diagram of the sliding mechanism of the high-precision injection mold shown in FIG.

[0033] Figure 5 for Figure 1 The structural schematic diagram of the lower mold core of the high-precision injection mold shown;

[0034] Figure 6 for Figure 1 Another structural schematic diagram of the high-precision injection mold shown;

[0035] Figure 7 for Figure 1 Another structural schematic diagram of the high-precision injection mold shown. DETAILED DESCRIPTION

[0036] In order to facilitate the understanding of the present disclosure, the present disclosure will be described more fully below with reference to the relevant drawings. The preferred embodiments of the present disclosure are given in the drawings. However, the present disclosure can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present disclosure more thoroughly and comprehensively understood.

[0037] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0038] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present disclosure. The terms used herein in the specification of the present disclosure are only for the purpose of describing specific embodiments and are not intended to limit the present disclosure. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0039] The present invention discloses a high-precision injection mold, comprising an upper mold group, a lower mold group, a guide assembly, a slide mechanism and an ejection mechanism, wherein the upper mold group and the lower mold group are arranged relatively to each other, the upper mold group comprises an upper mold plate and an upper mold core, the upper mold plate is provided with a liquid injection port, the upper mold core is mounted on the upper mold plate, the lower mold group comprises a lower mold plate and a lower mold core, the lower mold core is mounted on the lower mold plate, the guide assembly is mounted on the upper mold core, the guide assembly is slidably arranged with the slide mechanism; the upper mold core, the lower mold core and the slide mechanism jointly form an injection cavity, the injection cavity is relatively to the injection port The slide mechanism comprises an integrally formed first slide block, a second slide block, a third slide block and a fourth slide block, the periphery of the lower mold core is respectively provided with a first receiving groove, a second receiving groove, a third receiving groove and a fourth receiving groove, the first slide block is installed in the first receiving groove, the second slide block is installed in the second receiving groove, the third slide block is installed in the third receiving groove, and the fourth slide block is installed in the fourth receiving groove; the ejection mechanism is installed on a side of the lower mold away from the upper mold, and the ejection mechanism is used to eject the product from the injection cavity.

[0040] In the above-mentioned high-precision injection mold, the periphery of the lower mold core is respectively provided with a first accommodating groove, a second accommodating groove, a third accommodating groove and a fourth accommodating groove, the first row block is located in the first accommodating groove, the second row block is located in the second accommodating groove, the third row block is located in the third accommodating groove, and the fourth row block is located in the fourth accommodating groove, that is, the first row block, the second row block, the third row block and the fourth row block are all installed on the lower mold core, so that the lower template does not need to have a row groove, reducing the cumulative tolerance of the lower mold core and the lower template, and because the first row block, the second row block, the third row block and the fourth row block are an integrated molding structure, that is, the first row block, the second row block, the third row block and the fourth row block all move together with the lower mold core, thereby improving the processing accuracy of the mold and avoiding the need for additional polishing steps for the product in the later stage.

[0041] In order to better understand the technical solutions and beneficial effects of the present invention, the present invention is further described in detail below in conjunction with specific embodiments:

[0042] like Figures 1 to 6As shown, a high-precision injection mold 10 of an embodiment includes an upper mold group 100, a lower mold group 200, a guide assembly 300, a sliding mechanism 400 and an ejection mechanism 500, the upper mold group 100 and the lower mold group 200 are arranged relatively to each other, the upper mold group 100 includes an upper mold plate 110 and an upper mold core 120, the upper mold plate 110 is provided with a liquid injection port 111, the upper mold core 120 is installed on the upper mold plate 110, the lower mold group 200 includes a lower mold plate 210 and a lower mold core 220, the lower mold core 220 is installed on the lower mold plate 210, so that the upper mold core 120 and the lower mold core 220 are molded together when the upper mold plate 110 and the lower mold plate 210 move toward each other.

[0043] Furthermore, the deflection guide assembly 300 is installed on the upper mold core 120, and the deflection guide assembly 300 and the slide mechanism 400 are slidably arranged, that is, the slide mechanism 400 slides along the deflection guide assembly 300. The upper mold core 120, the lower mold core 220 and the slide mechanism 400 jointly form an injection cavity, and the injection cavity is connected to the injection port 111. The slide mechanism 400 includes an integrally formed first slide block 410, a second slide block 420, a third slide block 430 and a fourth slide block 440. The periphery of the lower mold core 220 is respectively provided with a first receiving groove 221, a second receiving groove 222, a third receiving groove 223 and a fourth receiving groove 440. The first row block 410 is installed in the first receiving groove 221, the second row block 420 is installed in the second receiving groove 222, the third row block 430 is installed in the third receiving groove 223, and the fourth row block 440 is installed in the fourth receiving groove 224. That is, the first row block 410, the second row block 420, the third row block 430 and the fourth row block 440 are installed in the lower mold core 220.

[0044] The ejection mechanism 500 is installed on a side of the lower mold plate 210 away from the upper mold plate 110 , and the ejection mechanism 500 is used to eject the product from the injection cavity to demold the product.

[0045] In this embodiment, the first row block 410, the second row block 420, the third row block 430 and the fourth row block 440 are installed on the lower mold core 220. Compared with the traditional technology in which the row block is installed on the template, the lower mold core 220 of this application does not need to have an additional row slot, which reduces the accumulation of processing tolerances between the lower mold core 220, the lower template 210 and the row mechanism 400 and other parts, and the first row block 410, the second row block 420, the third row block 430 and the fourth row block 440 move with the lower mold core 220, thereby improving the processing accuracy. On the other hand, the first row block 410, the second row block 420, the third row block 430 and the fourth row block 440 are an integrated molding structure, which reduces the connecting parts between the row mechanism 400, and further reduces the accumulation of processing tolerances of the parts, so that the processing accuracy of the mold is higher, avoiding the need to add an additional polishing process to the product in the later stage. Furthermore, there are three upper templates 110, namely the first upper template, the second upper template and the third upper template. The first upper template, the second upper template and the third upper template are connected in sequence, the third upper template is adjacent to the lower template 210, and the upper mold core 120 is installed in the third upper template.

[0046] In the high-precision injection mold 10, the periphery of the lower mold core 220 is respectively provided with a first receiving groove 221, a second receiving groove 222, a third receiving groove 223 and a fourth receiving groove 224, the first row block 410 is located in the first receiving groove 221, the second row block 420 is located in the second receiving groove 222, the third row block 430 is located in the third receiving groove 223, and the fourth row block 440 is located in the fourth receiving groove 224. 0 are all installed on the lower mold core 220, so that the lower mold plate 210 does not need to be provided with a row groove, reducing the cumulative tolerance of the lower mold core 220 and the lower mold plate 210, and because the first row block 410, the second row block 420, the third row block 430 and the fourth row block 440 are an integrated molding structure, that is, the first row block 410, the second row block 420, the third row block 430 and the fourth row block 440 all move together with the lower mold core 220, thereby improving the processing accuracy of the mold and avoiding the need for additional polishing steps for the product in the later stage.

[0047] like Figure 3 As shown, in one embodiment, the first row block 410, the second row block 420, the third row block 430 and the fourth row block 440 are arranged around the lower mold core 220, so that the first row block 410, the second row block 420, the third row block 430, the fourth row block 440, the lower mold core 220 and the upper mold core 120 together form an injection cavity.

[0048] like Figure 3As shown, in one embodiment, the guide assembly 300 includes a first guide column 310, a second guide column 320, a third guide column 330 and a fourth guide column 340, the upper mold core 120 is respectively provided with a first card slot, a second card slot, a third card slot and a fourth card slot, the first slider block 410 is provided with a first oblique groove, one end of the first guide column 310 is located in the first card slot and is engaged with the upper mold core 120, and the other end of the first guide column 310 is located in the first oblique groove;

[0049] The second positioning block 420 is provided with a second inclined groove, one end of the second inclined guide column 320 is located in the second slot and is engaged with the upper mold core 120, and the other end of the second inclined guide column 320 is located in the second inclined groove;

[0050] The third positioning block 430 is provided with a third inclined slot, one end of the third inclined guide column 330 is located in the third slot and is engaged with the upper mold core 120, and the other end of the third inclined guide column 330 is located in the third inclined slot;

[0051] The fourth positioning block 440 defines a fourth inclined slot, one end of the fourth inclined guide column 340 is located in the fourth slot and is engaged with the upper mold core 120 , and the other end of the fourth inclined guide column 340 is located in the fourth inclined slot.

[0052] In this embodiment, the first guide bevel column 310, the second guide bevel column 320, the third guide bevel column 330 and the fourth guide bevel column 340 are respectively clamped with the upper mold core 120, and when the lower mold core 220 moves, the first position block 410 moves along the extension direction of the first guide bevel column 310, the second position block 420 moves along the extension direction of the second guide bevel column 320, the third position block 430 moves along the extension direction of the third guide bevel column 330, and the fourth position block 440 moves along the extension direction of the fourth guide bevel column 340.

[0053] like Figure 5 As shown, in one embodiment, the periphery of the lower mold core 220 is respectively provided with a first avoidance opening 220a, a second avoidance opening 220b, a third avoidance opening 220c and a fourth avoidance opening 220d, one end of the first guide oblique column 310 is located in the first avoidance opening 220a, one end of the second guide oblique column 320 is located in the second avoidance opening 220b, one end of the third guide oblique column 330 is located in the third avoidance opening 220c, and one end of the fourth guide oblique column 340 is located in the fourth avoidance opening 220d. In this embodiment, the first guide oblique column 310 passes through the first avoidance opening 220a and abuts against the lower mold core 220. Similarly, the second guide oblique column 320, the third guide oblique column 330 and the third guide oblique column 330 all abut against the lower mold core 220.

[0054] like Figure 3 As shown, in one embodiment, the first slider block 410 and the first guide column 310 have a first preset angle, the second slider block 420 and the second guide column 320 have a second preset angle, the third slider block 430 and the third guide column 330 have a third preset angle, the fourth slider block 440 and the fourth guide column 340 have a fourth preset angle, and the first preset angle, the second preset angle, the third preset angle and the fourth preset angle are set equally. It can be understood that the values ​​of the first preset angle, the second preset angle, the third preset angle and the fourth preset angle are equal, so that the first slider block 410, the second slider block 420, the third slider block 430 and the fourth slider block 440 move together.

[0055] like Figure 6 As shown, in one embodiment, the ejection mechanism 500 includes a fixed plate assembly 510, a sliding plate assembly 520, a connecting plate 530, a guide column 540 and a ejector rod 550. The fixed plate assembly 510 is clamped and connected between the lower template 210 and the connecting plate 530. Both ends of the guide column 540 are respectively connected to the lower template 210 and the connecting plate 530. The sliding plate assembly 520 is slidably arranged on the guide column 540. The ejector rod 550 is installed on a side of the sliding plate assembly 520 adjacent to the lower template 210. The lower template 210 is provided with a through hole communicated with the injection cavity, so that the ejector rod 550 passes through the through hole when the sliding plate assembly 520 moves. It can be understood that after the product is molded in the injection cavity, the sliding plate assembly 520 moves along the guide column 540 under the drive of the external driving device, and since the ejector rod 550 is installed on the sliding plate assembly 520, the ejector rod 550 moves with the sliding plate assembly 520. When the ejector rod 550 passes through the through hole, the product in the injection cavity is ejected.

[0056] like Figure 6 and Figure 7As shown, in one embodiment, the sliding plate assembly 520 includes a first sliding plate 521 and a second sliding plate 522, the first sliding plate 521 is connected to the second sliding plate 522, the push rod 550 is installed on the first sliding plate 521, the first sliding plate 521 is provided with a first avoidance hole, the second sliding plate 522 is provided with a second avoidance hole, the guide column 540 is sequentially penetrated through the first avoidance hole and the second avoidance hole, the connecting plate 530 is provided with a third avoidance hole 531, and the third avoidance hole 531 is used for an external push pin to pass through so that the first sliding plate 521 and the second sliding plate 522 slide along the guide column 540. In this embodiment, the connecting plate 530 is connected to an external device, and the external driving device drives the connecting plate 530 to move, thereby driving the lower mold 210 and the upper mold 110 to close the mold. After the product is molded in the injection cavity, the ejector pin of the external driving device passes through the third avoidance hole 531, so that the ejector pin pushes the first sliding plate 521 and the second sliding plate 522 to move along the guide column 540, thereby causing the ejector rod 550 on the first sliding plate 521 to pass through the through hole to eject the product.

[0057] In one embodiment, the sliding plate assembly further comprises a fastener, the first sliding plate is provided with a first locking hole, the second sliding plate is provided with a second locking hole, and the fastener is sequentially inserted through the first locking hole and the second locking hole to fix the first sliding plate to the second sliding plate. In this embodiment, the fastener is a screw, and the first sliding plate and the second sliding plate are screwed and fixed by the screw.

[0058] like Figure 7 As shown, in one embodiment, the fixed plate assembly 510 includes a first fixed plate 511 and a second fixed plate 512, the first fixed plate 511 and the second fixed plate 512 are arranged opposite to each other, the first fixed plate 511 and the second fixed plate 512 are clamped and connected between the lower template 210 and the connecting plate 530, and the sliding plate assembly 520 is located between the first fixed plate 511 and the second fixed plate 512. In this embodiment, the guide column 540, the first sliding plate 521 and the second sliding plate 522 are located in the area between the first fixed plate 511 and the second fixed plate 512, and the guide column 540 is connected to the connecting plate 530 and the lower template 210 respectively, so that the first sliding plate 521 and the second sliding plate 522 slide along the guide column 540.

[0059] The present application also provides a mobile phone case injection molding device, comprising the high-precision injection mold 10 described in any of the above embodiments.

[0060] Compared with the prior art, the present invention has at least the following advantages:

[0061] In the high-precision injection mold 10, the periphery of the lower mold core 220 is respectively provided with a first receiving groove 221, a second receiving groove 222, a third receiving groove 223 and a fourth receiving groove 224, the first row block 410 is located in the first receiving groove 221, the second row block 420 is located in the second receiving groove 222, the third row block 430 is located in the third receiving groove 223, and the fourth row block 440 is located in the fourth receiving groove 224. 0 are all installed on the lower mold core 220, so that the lower mold plate 210 does not need to be provided with a row groove, reducing the cumulative tolerance of the lower mold core 220 and the lower mold plate 210, and because the first row block 410, the second row block 420, the third row block 430 and the fourth row block 440 are an integrated molding structure, that is, the first row block 410, the second row block 420, the third row block 430 and the fourth row block 440 all move together with the lower mold core 220, thereby improving the processing accuracy of the mold and avoiding the need for additional polishing steps for the product in the later stage.

[0062] The above-mentioned embodiments only express several implementation methods of the present disclosure, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the utility model patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present disclosure, and these all belong to the protection scope of the present disclosure. Therefore, the protection scope of the patent of the present disclosure shall be subject to the attached claims.

Claims

1. A high-precision injection mold, comprising an upper mold group and a lower mold group, the upper mold group and the lower mold group are arranged opposite to each other, the upper mold group comprises an upper mold plate and an upper mold core, the upper mold plate is provided with a liquid injection port, the upper mold core is installed on the upper mold plate, the lower mold group comprises a lower mold plate and a lower mold core, the lower mold core is installed on the lower mold plate, characterized in that: The high-precision injection mold further includes a guide component, a slide mechanism and an ejection mechanism, wherein the guide component is mounted on the upper mold core, and the guide component and the slide mechanism are slidably arranged; The upper mold core, the lower mold core and the slide mechanism jointly form an injection cavity, the injection cavity is communicated with the injection port, the slide mechanism includes a first slide block, a second slide block, a third slide block and a fourth slide block formed in one piece, the periphery of the lower mold core is respectively provided with a first receiving groove, a second receiving groove, a third receiving groove and a fourth receiving groove, the first slide block is installed in the first receiving groove, the second slide block is installed in the second receiving groove, the third slide block is installed in the third receiving groove, and the fourth slide block is installed in the fourth receiving groove; and, The ejection mechanism is installed on a side of the lower mold plate away from the upper mold plate, and is used to eject the product from the injection cavity.

2. The high-precision injection mold according to claim 1, characterized in that: The first positioning block, the second positioning block, the third positioning block and the fourth positioning block are disposed around the lower mold core.

3. The high-precision injection mold according to claim 1, characterized in that: The guide assembly comprises a first guide post, a second guide post, a third guide post and a fourth guide post, the upper mold core is respectively provided with a first clamping groove, a second clamping groove, a third clamping groove and a fourth clamping groove, the first slider block is provided with a first oblique groove, one end of the first guide post is located in the first clamping groove and is clamped with the upper mold core, and the other end of the first guide post is located in the first oblique groove; The second slider block is provided with a second inclined slot, one end of the second inclined guide column is located in the second slot and is engaged with the upper mold core, and the other end of the second inclined guide column is located in the second inclined slot; The third positioning block is provided with a third inclined slot, one end of the third inclined guide column is located in the third slot and is engaged with the upper mold core, and the other end of the third inclined guide column is located in the third inclined slot; The fourth row block is provided with a fourth inclined slot, one end of the fourth inclined guide column is located in the fourth slot and is engaged with the upper mold core, and the other end of the fourth inclined guide column is located in the fourth inclined slot.

4. The high-precision injection mold according to claim 3, characterized in that: The periphery of the lower mold core is respectively provided with a first avoidance opening, a second avoidance opening, a third avoidance opening and a fourth avoidance opening, one end of the first guide angle column is located in the first avoidance opening, one end of the second guide angle column is located in the second avoidance opening, one end of the third guide angle column is located in the third avoidance opening, and one end of the fourth guide angle column is located in the fourth avoidance opening.

5. The high-precision injection mold according to claim 3, characterized in that: There is a first preset angle between the first row block and the first inclined guide column, there is a second preset angle between the second row block and the second inclined guide column, there is a third preset angle between the third row block and the third inclined guide column, there is a fourth preset angle between the fourth row block and the fourth inclined guide column, and the first preset angle, the second preset angle, the third preset angle and the fourth preset angle are set equally.

6. The high-precision injection mold according to claim 1, characterized in that: The ejection mechanism includes a fixed plate assembly, a sliding plate assembly, a connecting plate, a guide column and a ejector rod. The fixed plate assembly is clamped and connected between the lower template and the connecting plate. Both ends of the guide column are respectively connected to the lower template and the connecting plate. The sliding plate assembly is slidably arranged on the guide column. The ejector rod is installed on a side of the sliding plate assembly adjacent to the lower template. The lower template is provided with a through hole communicating with the injection cavity, so that the ejector rod passes through the through hole when the sliding plate assembly moves.

7. The high-precision injection mold according to claim 6, characterized in that: The sliding plate assembly includes a first sliding plate and a second sliding plate, the first sliding plate is connected to the second sliding plate, the ejector rod is installed on the first sliding plate, the first sliding plate is provided with a first avoidance hole, the second sliding plate is provided with a second avoidance hole, the guide column is sequentially penetrated through the first avoidance hole and the second avoidance hole, the connecting plate is provided with a third avoidance hole, the third avoidance hole is used for an external ejector pin to pass through, so that the first sliding plate and the second sliding plate slide along the guide column.

8. The high-precision injection mold according to claim 7, characterized in that: The sliding plate assembly also includes a fastener. The first sliding plate is provided with a first locking hole, and the second sliding plate is provided with a second locking hole. The fastener is sequentially passed through the first locking hole and the second locking hole to fix the first sliding plate and the second sliding plate.

9. The high-precision injection mold according to claim 6, characterized in that: The fixed plate assembly includes a first fixed plate and a second fixed plate, the first fixed plate and the second fixed plate are arranged opposite to each other, the first fixed plate and the second fixed plate are both clamped and connected between the lower template and the connecting plate, and the sliding plate assembly is located between the first fixed plate and the second fixed plate.

10. A mobile phone shell injection molding device, characterized in that: A high-precision injection mold comprising any one of claims 1 to 9.

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