Anti-falling metal injection mold

Abstract

The invention discloses an anti-falling hardware injection mold, comprising an injection bottom mold and an injection upper mold. The injection bottom mold is provided with a bottom shell forming groove, a glue flow groove and a mounting groove. The injection upper mold comprises a base, a boss and a mounting column. The boss is arranged on the base, and the mounting column is mounted on the boss. A copper nut of a mounting shell is placed on the mounting column, and then the base is buckled on the injection bottom mold. The outer wall of the boss and the inner wall of the bottom shell forming groove together form an injection cavity. The mounting column is accommodated in the injection cavity, and the mounting column abuts against the bottom of the mounting groove. The glue flow groove is used to introduce plastic into the injection cavity. The copper nut is placed on the mounting column for injection molding, so that the shell and the copper nut can be formed into a whole without the need for post-processing to press the copper nut into the shell, thereby reducing the process, thereby improving the production efficiency, reducing the production cost, and improving the production stability of the mounting shell, thereby improving the production quality of the mounting shell, and effectively preventing the copper nut from falling off from the shell.

Description

Technical Field

[0001] The invention relates to the technical field of injection moulds, in particular to an anti-falling hardware injection mould. Background Art

[0002] Injection molding is an important process in modern industry. First, a molding cavity for the product is machined in a mold, and then the plastic is injected into the molding cavity of the mold under high pressure using an injection molding machine, thereby forming a plastic workpiece in the molding cavity.

[0003] See also Figure 1 , is a mounting shell 10 for mounting a battery, the mounting shell 10 includes a shell 11, a copper nut 12 and a shell cover 13, a locking hole 11a is opened on the shell 11, the copper nut 12 is accommodated in the locking hole 11a, and the shell cover 13 is arranged on the shell 11. In a conventional injection molding method, the shell 11 is first injection molded, and then the copper nut 12 is heated and pressed into the locking hole 11a, so as to achieve the purpose of installing the copper nut 12 into the locking hole 11a, and finally the shell cover 13 is installed on the shell 11.

[0004] However, the conventional method requires that the copper nut 12 be heated and pressed into the locking hole 11a after the injection molding is completed. Since multiple steps are required, the production cycle of the mounting shell 10 will be increased, thereby reducing the production efficiency of the mounting shell 10; moreover, it is necessary to use a heating device to heat the copper nut 12, that is, it is necessary to invest more production resources, thereby increasing production costs; further, the copper nut 12 is pressed into the locking hole 11a after being heated, and the temperature of the copper nut 12 needs to be controlled, otherwise it is easy to burn the area around the locking hole 11a, thereby causing the quality of the mounting shell 10 to decrease. Summary of the invention

[0005] The purpose of the present invention is to overcome the shortcomings of the prior art and provide a metal injection mold that prevents the copper nut from falling off. During the injection molding, the copper nut is placed in the mold for injection molding, thereby eliminating the need for subsequent processing operations, thereby improving the production efficiency of the mounting shell, reducing production costs, and effectively improving the quality of the mounting shell to prevent the copper nut from falling off from the shell.

[0006] The objective of the present invention is achieved through the following technical solutions:

[0007] An anti-falling hardware injection mold, comprising:

[0008] An injection molding bottom mold, wherein the injection molding bottom mold is provided with a bottom shell molding groove, a glue flow groove and an installation groove, the bottom shell molding groove is communicated with the glue flow groove, and the installation groove is communicated with the bottom shell molding groove;

[0009] An injection molding upper mold, the injection molding upper mold comprising a base, a boss and a mounting column, the boss is arranged on the base, the mounting column is arranged on the boss, and a glue inlet hole is opened on the base;

[0010] When the base is buckled with the injection bottom mold, the outer wall of the boss and the inner wall of the bottom shell molding groove together form an injection cavity, and the mounting column is accommodated in the mounting groove, and the glue inlet hole is connected to the glue flow groove.

[0011] In one of the embodiments, a plastic channel is further provided on the injection bottom mold, and two ends of the plastic channel are respectively connected to the glue flow groove and the bottom shell molding groove.

[0012] In one of the embodiments, a cold material well is also provided on the injection molding bottom mold, and the cold material well is connected to the glue flow groove.

[0013] In one of the embodiments, the injection molding bottom mold is further provided with an exhaust groove, and the exhaust groove is used to exhaust the air in the injection molding cavity.

[0014] In one of the embodiments, a cold glue groove is further provided on the base body, and the cold glue groove is connected to the glue inlet hole.

[0015] In one of the embodiments, the anti-falling metal injection mold further includes a protection spring, and two ends of the protection spring are respectively abutted against the base and the mounting column.

[0016] In one of the embodiments, a receiving groove is further provided on the base, and the protection spring and the mounting column are both received in the receiving groove.

[0017] In one of the embodiments, the anti-falling metal injection mold further includes a fixing seat, the fixing seat is provided with a fixing groove, and the base is accommodated in the fixing groove.

[0018] In one of the embodiments, the anti-falling metal injection mold further includes a support, the support is provided with a bearing groove, and the injection bottom mold is accommodated in the bearing groove.

[0019] In one of the embodiments, the anti-falling hardware injection mold also includes a demolding assembly, which includes a demolding rod, a mounting plate, a guide column and a reset spring. The guide column is arranged on the support, and the mounting plate is slidably arranged on the guide column. The reset spring is sleeved on the guide column, and the two ends of the reset spring are respectively abutted against the mounting plate and the support. A demolding through hole is also provided on the injection bottom mold, and one end of the demolding rod is arranged on the mounting plate, and the other end of the demolding rod is passed through the demolding through hole.

[0020] Compared with the prior art, the present invention has at least the following advantages:

[0021] The anti-falling hardware injection mold of the present invention comprises an injection bottom mold and an injection upper mold, wherein the injection bottom mold is provided with a bottom shell forming groove, a glue flow groove and an installation groove, and the injection upper mold comprises a base, a boss and an installation column, wherein the boss is arranged on the base, the installation column is installed on the boss, a copper nut of the installation shell is placed on the installation column, and then the base and the injection bottom mold are buckled together, the outer side wall of the boss and the inner side wall of the bottom shell forming groove jointly form an injection cavity, the installation column is accommodated in the injection cavity, and the installation column abuts against the bottom of the installation groove, and the plastic is injected from the glue flow groove into the injection cavity. The shell of the mounting shell is formed in the injection molding cavity. Since the copper nut is placed in the injection molding cavity during the process of molding the shell, the shell and the copper nut can be formed into a whole, and there is no need to press the copper nut into the shell by heating later, which reduces the processing steps and improves the production efficiency. Since the investment in heating equipment is reduced, the production cost is reduced. In addition, the shell and the copper nut are injection molded by a mold, which improves the production stability of the mounting shell, thereby improving the production quality of the mounting shell and effectively preventing the copper nut from falling off from the shell. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention 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 creative work.

[0023] Figure 1 It is a structural schematic diagram of a mounting shell;

[0024] Figure 2 It is a structural schematic diagram of the anti-falling hardware injection mold of the present invention;

[0025] Figure 3 for Figure 2 The structural schematic diagram of the injection bottom mold of the anti-falling hardware injection mold shown;

[0026] Figure 4 for Figure 2 The structural schematic diagram of the injection upper mold of the anti-falling hardware injection mold shown;

[0027] Figure 5 for Figure 2 The schematic diagram of the partial structure of the anti-falling hardware injection mold shown;

[0028] Figure 6 for Figure 2The structural schematic diagram of the injection upper mold and the cooling spiral tube of the anti-shedding hardware injection mold shown;

[0029] Figure 7 for Figure 2 A structural schematic diagram of the anti-falling metal injection mold from another perspective of the injection mold upper mold;

[0030] Figure 8 for Figure 2 The structural schematic diagram of the injection upper mold and mold core cover plate of the anti-falling hardware injection mold shown;

[0031] Fig. 9 for Figure 2 The structural schematic diagram of the demoulding component of the anti-falling hardware injection mold shown;

[0032] Fig.10 for Fig. 9 A schematic diagram of the partial structure of the demoulding component is shown. DETAILED DESCRIPTION

[0033] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the relevant drawings. The preferred embodiments of the present invention are given in the drawings. However, the present invention 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 invention more thoroughly understood.

[0034] 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.

[0035] 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 invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0036] It should be noted that the expressions used herein regarding an element being “connected” to another element also mean that an element is “communicated” to another element, and fluids can be exchanged and communicated between the two elements.

[0037] See also Figure 2A metal injection mold 20 that prevents falling off includes an injection bottom mold 100 and an injection upper mold 200. The injection upper mold 200 is buckled with the injection bottom mold 100 to achieve mold closing, so that a cavity for injection molding is formed inside the injection upper mold 200 and the injection bottom mold 100. When the injection molding machine injects molten plastic into the cavity, after the molten plastic is cooled, the mounting shell 10 can be formed in the cavity.

[0038] See also Figure 2 and Figure 3 The injection bottom mold 100 is provided with a bottom shell molding groove 110 , a glue flow groove 120 and an installation groove 130 . The bottom shell molding groove 110 is connected to the glue flow groove 120 , and the installation groove 130 is connected to the bottom shell molding groove 110 . It should be noted that the bottom shell molding groove 110 is used to mold the lower surface of the mounting shell 10. The injection upper mold 200 is buckled on the injection bottom mold 100, and the injection bottom mold 100 is sealed by the injection upper mold 200, so that the bottom shell molding groove 110 is used to mold the bottom surface of the mounting shell 10. The glue flow groove 120 is connected to the bottom shell molding groove 110, so that the molten plastic can flow through the glue flow groove 120 and finally flow into the bottom shell molding groove 110. The installation groove 130 is connected to the bottom shell molding groove 110. The installation groove 130 is used to mold the locking hole 11a on the shell body 11 of the mounting shell 10. The molten plastic flows through the glue flow groove 120 and finally flows into the bottom shell molding groove 110 and the installation groove 130, thereby molding the mounting shell 10.

[0039] See also Figure 2 and Figure 4The injection mold 200 includes a base 210, a boss 220 and a mounting column 230. The boss 220 is disposed on the base 210, the mounting column 230 is disposed on the boss 220, and a glue inlet hole 211 is opened on the base 210. It should be noted that the injection molding upper mold 200 is composed of a base 210 and a boss 220, and the boss 220 is installed on the base 210. In one embodiment, the boss 220 and the base 210 are integrally formed and can be processed by a tool such as a milling machine. It should be noted that the boss 220 includes a first molding table and a second molding table. The first molding table is used to form the locking hole 11a on the base 11 of the mounting shell 10. When the base 210 is buckled on the injection molding bottom mold 100, the first molding table will be accommodated in the bottom shell molding groove 110, so that the locking hole 11a on the base 11 is finally formed, and the second molding table is used to form the placement groove on the shell 11, and the placement groove is used to fix the battery. Specifically, when the base 210 is buckled on the injection molding bottom mold 100, the second molding table will be accommodated in the bottom shell molding groove 110, so that the molten plastic cannot Flow to the position of the second molding table, thereby achieving the purpose of placing the groove on the molding shell 11, the mounting column 230 is arranged on the boss 220, specifically, the mounting column 230 is installed on the first molding table, in this way, the copper nut 12 of the mounting shell 10 can be placed on the mounting column 230, when the base 210 is buckled on the injection molding bottom mold 100, the mounting column 230 will fix the copper nut 12 in the mounting groove 130, in this way, when the injection molding machine injects molten plastic into the mounting groove 130, the molten plastic will wrap the copper nut 12, because the mounting column 230 is passed through the through hole in the middle of the copper nut 12, therefore, the through hole in the middle of the copper nut 12 will not flow into the plastic, in this way, the purpose of integrally injecting the copper nut 12 and the shell 11 on the injection molding machine can be achieved, and a glue inlet hole 211 is opened on the base 210, and the glue inlet hole 211 is used to introduce molten plastic.

[0040] It should be noted that when the base 210 is buckled with the injection bottom mold 100, the outer wall of the boss 220 and the inner wall of the bottom shell molding groove 110 together form an injection cavity, and the mounting column 230 is accommodated in the mounting groove 130, and the glue inlet hole 211 is connected to the glue flow groove 120. Specifically, the base 210 is buckled on the injection bottom mold 100, so that the boss 220 is accommodated in the bottom shell molding groove 110, and the outer wall of the boss 220 and the inner wall of the bottom shell molding groove 110 together form an injection cavity, and the injection cavity is used for injection molding mounting. The shell 11 of the shell 10, it should be noted that the boss 220 includes a first molding platform and a second molding platform, the outer side wall of the first molding platform is used to mold the locking hole 11a on the shell 11, and the outer side wall of the second molding platform is used to mold the placement groove on the shell 11, and the mounting column 230 is installed on the first molding platform. Specifically, when the base 210 is buckled on the injection bottom mold 100, one end of the mounting column 230 is set on the first molding platform, and the other end of the mounting column 230 abuts against the bottom of the bottom shell molding groove 110 on the injection bottom mold 100, so that the mounting column 230 can be used to mold the bottom shell 110. The locking hole 11a can be formed by the mounting column 230, and the copper nut 12 placed on the mounting column 230 is integrated into the locking hole 11a, so that the locking hole 11a and the copper nut 12 are integrally formed. In this way, it is not necessary to firstly injection mold the housing 11, and then use a post-processing method to heat the copper nut 12 and press it into the locking hole 11a, so that the production of the mounting shell 10 can reduce the subsequent processing steps, thereby improving the production efficiency of the mounting shell 10. Moreover, if the post-processing method is adopted, it is necessary to use an additional heating device to heat the copper nut 12. Heat, for example, placing the copper nut 12 on a heating plate for heating, then using a clamp to clamp the copper nut 12 into the locking hole 11a on the shell 11 of the mounting shell 10, and using a pressure rod to press the copper nut 12 into the locking hole 11a. In this way, more resources will be needed to produce the mounting shell 10. Therefore, the use of the anti-falling hardware injection mold 20 of the present invention can reduce the investment in production resources, thereby reducing production costs, and the shell 11 will not be damaged by high temperature, thereby effectively improving the injection molding quality of the mounting shell 10.

[0041] Please refer again Figure 3, a plastic channel 140 is also provided on the injection bottom mold 100, and the two ends of the plastic channel 140 are respectively connected to the glue flow groove 120 and the bottom shell molding groove 110. It should be noted that in order to keep the outer surface of the shell 11 smooth, a plastic channel 140 is provided on the injection bottom mold 100. Specifically, one end of the plastic channel 140 is connected to the glue flow groove 120, and the other end of the plastic channel 140 is located at the bottom of the bottom shell molding groove 110, so that the plastic channel 140 is connected to the injection cavity at the bottom of the bottom shell molding groove 110. When the injection molding machine injects the molten plastic into the glue inlet hole 211, the molten plastic will flow into the glue flow groove 120, and then flow into the plastic. The plastic material flows into the channel 140, and finally flows into the bottom shell molding groove 110 from the plastic channel 140, that is, flows into the injection molding cavity to form the shell 11 of the mounting shell 10. In this way, by introducing the molten plastic from the glue flow groove 120 into the plastic channel 140 and then into the injection molding cavity, instead of directly introducing the molten plastic from the glue flow groove 120 into the injection molding cavity, the glue inlet is set at the bottom of the shell 11, which effectively improves the smoothness of the outer surface of the shell 11, thereby improving the molding quality of the shell 11.

[0042] Please refer again Figure 3 , a cold material well 150 is also provided on the injection molding bottom mold 100, and the cold material well 150 is connected to the glue flow groove 120. It should be noted that the plastic is heated to a molten state in the injection molding machine. When the molten plastic is injected into the glue inlet hole 211 by the injection molding machine, the plastic will lose the heating source, causing the molten plastic to start to cool down. When the plastic flows from the glue inlet hole 211 to the glue flow groove 120, the temperature of the molten plastic at the front of the plastic flow will drop to a certain value. In order to prevent this part of the plastic from solidifying in the flow channel halfway before flowing into the injection molding cavity, thereby causing the flow channel in the mold to be blocked, the cold material well 150 is connected at the end of the glue flow groove 120. The cold material well 150 can well accommodate the cooled plastic at the front, thereby effectively preventing the flow channel of the plastic in the mold from being blocked.

[0043] Please refer again Figure 3The injection molding bottom mold 100 is also provided with an exhaust groove 160, which is used to exhaust the air in the injection molding cavity. It should be noted that when the base 210 and the injection molding bottom mold 100 are buckled together, there will be air in the injection molding cavity, and the air in the injection molding cavity needs to be exhausted, otherwise air marks will be generated on the surface of the molded shell 11. For plastic products, air marks on the surface mean that the quality is deteriorated. Therefore, in order to prevent air marks from being generated on the surface of the shell 11, the air in the injection molding cavity needs to be exhausted to the outside. Specifically, the exhaust groove 160 is provided next to the injection molding cavity. When the molten plastic is injected into the injection molding cavity, the air in the injection molding cavity will be squeezed into the gap between the body 210 and the injection molding bottom mold 100, and then flow from the gap into the exhaust groove 160, and then be exhausted to the outside along the exhaust groove 160. By providing the exhaust groove 160, the surface of the shell 11 can be effectively prevented from generating air marks.

[0044] Please refer again Figure 4 , a cold glue groove 212 is also provided on the base 210, and the cold glue groove 212 is connected to the glue inlet hole 211. It should be noted that when the base 210 is buckled with the injection bottom mold 100, the glue inlet hole 211 is connected to the glue flow groove 120, the glue flow groove 120 is connected to the plastic channel 140, and the plastic channel 140 is connected to the injection cavity. A cold glue groove 212 is also provided on the base 210, and the cold glue groove 212 and the glue flow groove 120 together form a cold material channel, which increases the cross-section of the plastic flow path, thereby accelerating the flow speed of the molten plastic, allowing the molten plastic to flow into the injection cavity faster, shortening the production injection time.

[0045] See also Figure 5 The anti-falling metal injection mold 20 also includes a protection spring 300, and the two ends of the protection spring 300 are respectively in contact with the base 210 and the mounting post 230. It should be noted that when the base 210 and the injection bottom mold 100 are buckled together, the mounting post 230 will be accommodated in the mounting groove 130, and the mounting post 230 will be in contact with the bottom of the mounting groove 130. By arranging the protection spring 300 on the base 210 and making the protection spring 300 abut against the mounting post 230, the mounting post 230 can be prevented from being damaged when the base 210 and the injection bottom mold 100 are buckled. Specifically, during the buckling process of the base 210 and the injection bottom mold 100, the mounting post 230 can be prevented from being damaged. During the process, when the mounting post 230 abuts against the bottom of the mounting groove 130, the base 210 and the injection molding bottom mold 100 have not been fully engaged. At this time, the mounting post 230 is abutted against the bottom of the mounting groove 130, so the mounting post 230 will squeeze the protection spring 300 and maintain the state of squeezing the protection spring 300 until the base 210 and the injection molding bottom mold 100 are fully engaged together. Therefore, by setting the protection spring 300, the mounting post 230 can be effectively protected.

[0046] In one embodiment, a receiving groove is further provided on the base 210, and the protection spring 300 and the mounting post 230 are both accommodated in the receiving groove. It should be noted that by providing the receiving groove on the base 210 and accommodating the protection spring 300 and the mounting post 230 in the receiving groove, the protection spring 300 and the mounting post 230 can be effectively protected to prevent the protection spring from being damaged.

[0047] Please refer again Figure 2 The anti-dropping metal injection mold 20 also includes a fixing seat 400, on which a fixing groove is provided, and the base 210 is accommodated in the fixing groove. It should be noted that since the material of the base 210 used for injection molding is relatively expensive, the use of the fixing seat 400 to protect the base 210 can save the material of the base 210 and also enable the mold to be produced modularly, that is, by processing a plurality of small parts to assemble the entire mold, the production cost invested in mold processing can be effectively controlled, and the base 210 is installed and fixed in the fixing groove of the fixing seat 400, so that the base 210 and the injection bottom mold 100 can be better controlled by controlling the fixing seat 400 to close or separate the mold, that is, the base 210 can be more easily controlled.

[0048] Please refer again Figure 2 The anti-dropping metal injection mold 20 also includes a support 500, and a bearing groove 510 is provided on the support 500, and the injection bottom mold 100 is accommodated in the bearing groove 510. It should be noted that, similarly, the use of the injection molding machine to control the base 210 and the injection bottom mold 100 to close or separate the mold is to control the support 500 and the fixing seat 400, so that the base 210 and the injection bottom mold 100 can be closed or separated, so that the injection bottom mold 100 can be better protected and controlled.

[0049] Please refer again Figure 2The anti-falling hardware injection mold 20 also includes a demolding assembly 600, which includes a demolding rod 610, a mounting plate 620, a guide column 630 and a reset spring 640. The guide column 630 is arranged on the support 500, and the mounting plate 620 is slidably arranged on the guide column 630. The reset spring 640 is sleeved on the guide column 630, and the two ends of the reset spring 640 are respectively abutted against the mounting plate 620 and the support 500. A demolding through hole is also opened on the injection bottom mold 100, and one end of the demolding rod 610 is arranged on the mounting plate 620, and the other end of the demolding rod 610 is passed through the demolding through hole. It should be noted that, after the base 210 and the injection bottom mold 100 are combined to complete the injection molding, the shell 11 formed in the injection cavity needs to be demolded. Specifically, when the base 210 is separated from the injection bottom mold 100, the injection molding machine pushes the mounting plate 620. Since the mounting plate 620 slides in the guide column 630, the mounting plate 620 is pushed close to the injection bottom mold 100. Since the demolding rod 610 is installed and fixed on the mounting plate 620, the demolding rod 610 is pushed to slide in the demolding through hole, so that the demolding rod 610 pushes the shell 11 in the injection cavity, thereby achieving the purpose of demolding the shell 11.

[0050] In one embodiment, an upper cover molding groove is further opened on the injection molding bottom mold 100, and the injection molding upper mold 200 also includes an upper cover boss. When the base 210 is buckled on the injection molding bottom mold 100, the outer wall of the upper cover boss and the inner wall of the upper cover molding groove together form an upper cover cavity. The upper cover cavity is used to form a shell cover 13 of the mounting shell 10, so that the shell body 11 and the shell cover 13 can be injection molded at the same time in a set of molds, and there is no need to perform injection molding on the shell cover 13 separately, which effectively improves the efficiency of injection molding production.

[0051] See also Figure 6The injection upper mold 200 is also provided with a cold water trough 240. The anti-fall-off hardware injection mold 20 also includes a cooling spiral tube 1000. The cooling spiral tube 1000 is provided with a water inlet hole 1100 and a spiral groove 1200. The spiral groove 1200 is connected to the water inlet hole 1100. The cooling spiral tube 1000 is accommodated in the cold water trough 240. It should be noted that during the injection molding process, cooling the injection mold is an important part of the injection molding process. If the mold is not cooled down enough, it is easy to cause defects in the plastic parts formed in the mold. For example, due to uneven cooling in the mold, the temperature of the plastic parts in the molding cavity of the mold is inconsistent, which in turn causes inconsistent stress in some weak parts or thinner ribs of the plastic parts, which in turn causes the molded plastic parts to deform. The surface of the plastic parts may even be burned due to the high temperature of the mold, causing patterns on the surface of the plastic parts, thereby reducing the quality of the plastic parts. Moreover, for the injection molding industry, improving the efficiency of plastic injection molding is a goal that technicians in the field have always pursued. After the mold has molded the plastic parts, accelerating the cooling of the mold so that the plastic parts can be quickly cooled and demolded is the main research direction for technicians in this field to improve the efficiency of mold injection. Figure 6The outer surface of the cooling spiral tube 1000 shown in the figure is provided with a spiral groove, namely, a spiral groove 1200, and a water inlet hole 1100 is provided at the center of the cooling spiral tube 1000. At the bottom of the cooling spiral tube 1000, the water inlet hole 1100 and the spiral groove 1200 are connected by a groove provided on the tube wall of the cooling spiral tube 1000. It should be noted that the cold water groove 240 does not penetrate the injection mold 200, and the distance between the bottom of the cold water groove 240 and the bottom cavity of the injection mold 200 is maintained at 2c. m~3cm, then apply sealing glue on the outer surface of the cooling spiral tube 1000, and then insert the cooling spiral tube 1000 into the cold water tank 240, and make the bottom of the cooling spiral tube 1000 abut against the bottom of the cold water tank 240, so that when cold water is poured into the water inlet through hole 1100 on the cooling spiral tube 1000, the cold water will enter the bottom of the cooling spiral tube 1000 along the water inlet through hole 1100, and then the cold water will enter the spiral groove along the connection between the water inlet through hole 1100 and the spiral groove 1200 1200 is located at the end at the bottom of the cold water tank 240, and then the cold water will flow along the spiral groove 1200 from the bottom of the cold water tank 240 to the top of the cold water tank 240, and then the cold water will flow back to the external cooling system, and then the cooled cold water will be sent to the water inlet through hole 1100, so that a cycle of cold water cooling is realized. By setting the spiral groove 1200, the residence time of the cold water on the injection mold 200 can be increased, so that more heat on the bottom mold core 300 can be taken away, so that the injection mold 200 can be cooled faster, and the cooling process can be completed. In order to enable the plastic parts to be cooled quickly to achieve demolding of the plastic parts, it should be noted that the cooling spiral tube 1000 can be changed in size according to actual conditions, and multiple cold water grooves 240 can be opened on the injection molding upper mold 200, so that the cold water grooves 240 can be evenly distributed above the cavity of the injection molding upper mold 200, so that the temperature of the cavity of the injection molding upper mold 200 can be steadily reduced, thereby effectively preventing the deformation of the plastic parts due to the temperature imbalance in various parts of the injection molding upper mold 200, thereby effectively improving the injection molding production efficiency of plastic parts.

[0052] See also Figure 7The injection mold 200 is divided into two halves from the middle. In one of the halves of the injection mold 200, a water flow groove 250, a first through hole 260 and a second through hole 270 are provided on the side wall of the half body. The first through hole 260 and the second through hole 270 are connected inside the half body. In one embodiment, two inclined holes are drilled on the side wall of the half body by a drill bit, and the two inclined holes are connected inside the half body. In this way, the purpose of connecting the first through hole 260 and the second through hole 270 can be achieved, and the second through hole 270 is connected to the water flow groove 250. Then, a plurality of first through holes 260 and a plurality of second through holes 270 are provided on the side wall of the half body. The plurality of first through holes 260 are connected to the plurality of second through holes 270 one by one, and the plurality of first through holes 260 are arranged at intervals, and the plurality of second through holes 270 are arranged at intervals. Then, for the second half of the injection mold 200, the first through holes 260 and the second through holes 270 are arranged at intervals on the side wall. Correspondingly, a water flow trough 250, a plurality of first through holes 260 and a plurality of second through holes 270 are opened, and then the two halves of the injection molding upper mold 200 are buckled together to form a complete injection molding upper mold 200. In this way, the inner side walls of the two halves of the water flow trough 250 will form a water inlet, and the first through holes 260 and the second through holes 270 will form a spiral flow trough, and the bottom of the water inlet will be connected with the flow trough. In this way, when cold water flows into the water inlet, the cold water will flow from the bottom of the cold water channel into the flow trough, and then flow through the flow trough to the external cooling equipment, and then flow back to the water inlet to maintain circulation. By directly opening a cold water channel in the injection molding upper mold 200, the cold water can directly contact the mold, so that it can better take away the temperature of the mold, thereby improving the cooling effect on the mold, accelerating the cooling speed of the mold, so that the internal plastic parts can be cooled faster and demolded, thereby accelerating the efficiency of the injection molding process.

[0053] See also Figure 8A spiral water channel 280 is provided on the surface of the injection mold 200. The anti-falling metal injection mold 20 further includes a mold core cover plate 2000. The mold core cover plate 2000 is provided with a water inlet hole 2100 and a water outlet hole 2200. The mold core cover plate 2000 is arranged on the injection mold 200. The two ends of the water channel 280 are respectively connected to the water inlet hole 2100 and the water outlet hole 2200. It should be noted that the curvature and direction of the water channel 280 can be changed according to actual conditions, so that The injection mold 200 can be cooled as a whole. Specifically, cold water flows into the water channel 280 from the water inlet hole 2100 of the mold core cover plate 2000, and then the cold water flows through the water channel 280 and finally flows back to the external water cooling device from the water outlet hole 2200. Then the cooled cold water is reconnected to the water inlet hole 2100 to realize the cold water circulation through the injection mold 200, so as to cool the injection mold 200. Since the water channel 280 is laid on the injection mold 200, the cooling capacity is increased. The range of water flow is improved, thereby improving the heat absorption capacity of cold water, and then the mold can be quickly cooled down, so that the plastic parts in the mold can be quickly cooled down and demolded. It should be noted that in order to prevent the cold water in the water channel 280 from overflowing from the gap between the injection molding upper mold 200 and the mold core cover plate 200, resulting in the shortening of the cold water flow path, and then causing the cold water to stay on the injection molding upper mold 200 for too short a time, reducing the cooling effect on the mold. Therefore, adhesive is applied on the surface of the injection molding upper mold 200, so that the mold core cover plate 2000 can be tightly fitted with the injection molding upper mold 200, thereby effectively preventing the cold water from overflowing from the gap between the mold core cover plate 2000 and the injection molding upper mold 200, thereby ensuring that the cold water stays on the injection molding upper mold 200 for a long enough time, thereby effectively ensuring the cooling effect of the cold water on the mold, accelerating the cooling speed of the mold, and then enabling the plastic parts inside the mold to be quickly cooled down and demolded, greatly improving the efficiency of the injection molding process.

[0054] See also Fig. 9 and Fig.10The anti-falling hardware injection mold 20 also includes a demolding assembly 3000, which includes a control part 3100, a first demolding part 3200, a second demolding part 3300 and a locking post 3400. The first demolding part 3200 is slidably arranged on the injection bottom mold 100, and the locking post 3400 is arranged on the first demolding part 3200. The second demolding part 3300 is slidably arranged on the locking post 3400. The first demolding part 3200 is used to push the plastic part to demold, and the second demolding part 3300 is used to push the plastic part to demold, and the locking post 3400 is used to lock the second demolding part 3300, so that after the second demolding part 3300 slides a certain distance on the locking post 3400, the second demolding part 3300 will be locked with the first demolding part 3200. The key 3100 is used to control the first demolding member 3200 and the second demolding member 3300 so that the first demolding member 3200 and the second demolding member 3300 move synchronously or asynchronously. It should be noted that demolding operations are required for injection molded plastic parts. Due to the various types of injection molded plastic parts, each injection mold needs to be designed with a matching demolding mechanism to realize the demolding of the plastic parts. This not only increases the resource consumption, but also requires a lot of time to produce the mold, thereby reducing the production efficiency of the mold. The demolding mechanism has a primary demolding and a secondary demolding. The specific number of demolding levels used depends on the specific plastic parts. This will cause the demolding mechanism to be not highly compatible. The above-mentioned demolding assembly 3000 can be compatible with the primary demolding and secondary demolding in the mold.

[0055] The first demoulding member 3200 includes a first push column 3210 and a first support plate 3220. The first push column 3210 is disposed on the first support plate 3220. The first support plate 3220 is slidably disposed on the injection bottom mold 100. The first push column 3210 is used to push the plastic part in the mold to demould the plastic part.

[0056] The second demolding member 3300 is located above the first demolding member 3200. The second demolding member 3300 includes a second ejector column 3310 and a second support plate 3320. The second ejector column 3310 is disposed on the second support plate 3320. The second support plate 3320 is slidably disposed on the injection bottom mold 100, and the second support plate 3320 is located above the first support plate 3220. The second ejector column 3310 is also used to push the plastic part of the mold to demold the plastic part. One end of the locking column 3400 is disposed on the first support plate 3220.

[0057] The other end of the locking column 3400 is penetrated by a second support plate 3320, and a clamping platform 3410 is provided on the locking column 3400.

[0058] The control member 3100 includes a control rod 3110, a reversing rod 3120, a fastening rod 3130 and a control spring 3140. The two ends of the control spring 3140 are respectively connected to the second support plate 3320 and the control rod 3110. The reversing rod 3120 is connected to the control rod 3110. A first fastening groove 3221 is formed on the first support plate 3220. A second fastening groove 3321 is formed on the second support plate 3320. The fastening rod 3130 is connected to the reversing rod 3120, and the fastening rod 3130 is accommodated in the first fastening groove 3221 and the second fastening groove 3321.

[0059] When the injection molding machine pushes the control rod 3110, the control rod 3110 moves upward, the control spring 3140 is compressed, and the control rod 3110 pushes the reversing rod 3120 to move, so that the reversing rod 3120 pulls the fastening rod 3130 close to the control rod 3110, and then the fastening rod 3130 is disengaged from the first buckle groove 3221 and the second buckle groove 3321, so that the first support plate 3220 is separated from the second support plate 3320, and then the injection molding machine pushes the second support plate 3320. When the second support plate 3320 moves upward, it will drive the second push column 3310 to move upward. After the second support plate 3320 moves a certain distance, the second support plate 3320 3320 enters the card table 3410 of the locking column 3400, so that the second support plate 3320 drives the first support plate 3220 to move upward, and then drives the first push column 3210 to move upward. In this way, the second push column 3310 and the first push column 3210 move successively, that is, the secondary demoulding operation is realized; when the primary demoulding operation is required, the injection molding machine does not push the control rod 3110, but directly pushes the second support plate 3320. Specifically, since the injection molding machine does not push the control rod 3110, the control rod 3110 is located at the initial position under the restoring elastic force of the control spring 3140, and the control rod 3110 will push the reversing rod 3120 to The first and second pallet 3320 are moved upwards by the control rod 3110, and the ... The movement of the clamping rod 3130 allows the clamping rod 3130 to be accommodated in the first clamping groove 3221 and the second clamping groove 3321, or to be separated from the first clamping groove 3221 and the second clamping groove 3321, thereby realizing the control of the fixation or separation of the first pallet 3220 and the second pallet 3320 by the control rod 3110, and then the second pallet 3320 and the first pallet 3220 can be demoulded synchronously or asynchronously, that is, the first-level demoulding and the second-level demoulding are combined, thereby improving the compatibility of the mold demoulding structure, thereby making the mold design more flexible, thereby improving the production efficiency of the mold.

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

[0061] The anti-falling hardware injection mold of the present invention comprises an injection bottom mold and an injection upper mold, wherein the injection bottom mold is provided with a bottom shell forming groove, a glue flow groove and an installation groove, and the injection upper mold comprises a base, a boss and an installation column, wherein the boss is arranged on the base, the installation column is installed on the boss, a copper nut of the installation shell is placed on the installation column, and then the base and the injection bottom mold are buckled together, the outer side wall of the boss and the inner side wall of the bottom shell forming groove jointly form an injection cavity, the installation column is accommodated in the injection cavity, and the installation column abuts against the bottom of the installation groove, and the plastic is injected from the glue flow groove into the injection cavity. The shell of the mounting shell is formed in the injection molding cavity. Since the copper nut is placed in the injection molding cavity during the process of molding the shell, the shell and the copper nut can be formed into a whole, and there is no need to press the copper nut into the shell by heating later, which reduces the processing steps and improves the production efficiency. Since the investment in heating equipment is reduced, the production cost is reduced. In addition, the shell and the copper nut are injection molded by a mold, which improves the production stability of the mounting shell, thereby improving the production quality of the mounting shell and effectively preventing the copper nut from falling off from the shell.

[0062] The above-mentioned embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention 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 invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. An anti-falling metal injection mold, characterized in that: include: An injection molding bottom mold, wherein the injection molding bottom mold is provided with a bottom shell molding groove, a glue flow groove and an installation groove, the bottom shell molding groove is communicated with the glue flow groove, and the installation groove is communicated with the bottom shell molding groove; An injection molding upper mold, the injection molding upper mold comprising a base, a boss and a mounting column, the boss is arranged on the base, the mounting column is arranged on the boss, and a glue inlet hole is opened on the base; When the base is buckled with the injection bottom mold, the outer wall of the boss and the inner wall of the bottom shell molding groove together form an injection cavity, and the mounting column is accommodated in the mounting groove, and the glue inlet hole is connected to the glue flow groove; The injection molding bottom mold is also provided with an upper cover molding groove, and the injection molding upper mold also includes an upper cover boss. When the base body is buckled on the injection molding bottom mold, the outer side wall of the upper cover boss and the inner side wall of the upper cover molding groove together form an upper cover cavity, and the upper cover cavity is used to mold a shell cover of the mounting shell; The injection upper mold is also provided with a cold water trough, and the anti-falling metal injection mold further includes a cooling spiral tube, on which a water inlet through hole and a spiral groove are provided, the spiral groove is connected with the water inlet through hole, and the cooling spiral tube is accommodated in the cold water trough; A spiral water channel is provided on the surface of the injection mold. The anti-falling hardware injection mold also includes a mold core cover plate, which is provided with a water inlet hole and a water outlet hole. The mold core cover plate is arranged on the injection mold, and the two ends of the water channel are respectively connected with the water inlet hole and the water outlet hole.

2. The anti-falling metal injection mold according to claim 1, characterized in that: The injection bottom mold is also provided with a plastic channel, and two ends of the plastic channel are respectively connected with the glue flow groove and the bottom shell molding groove.

3. The anti-falling metal injection mold according to claim 1, characterized in that: A cold material well is also provided on the injection bottom mold, and the cold material well is communicated with the glue flow groove.

4. The anti-falling metal injection mold according to claim 1, characterized in that: The injection bottom mold is also provided with an exhaust groove, which is used to exhaust the air in the injection cavity.

5. The anti-falling metal injection mold according to claim 1, characterized in that: The base body is also provided with a cold glue groove, which is communicated with the glue inlet hole.

6. The anti-falling metal injection mold according to claim 1, characterized in that: The anti-falling metal injection mold also includes a protection spring, and two ends of the protection spring are respectively in contact with the base and the mounting column.

7. The anti-falling metal injection mold according to claim 6, characterized in that: The base is also provided with a receiving groove, and the protection spring and the mounting column are both received in the receiving groove.

8. The anti-falling metal injection mold according to claim 1, characterized in that: The anti-falling metal injection mold further comprises a fixing seat, a fixing groove is provided on the fixing seat, and the base is accommodated in the fixing groove.

9. The anti-falling metal injection mold according to claim 1, characterized in that: The anti-falling hardware injection mold also includes a support, the support is provided with a bearing groove, and the injection bottom mold is accommodated in the bearing groove.

10. The anti-falling metal injection mold according to claim 9, characterized in that: The anti-falling hardware injection mold also includes a demoulding component, which includes a demoulding rod, a mounting plate, a guide column and a reset spring. The guide column is arranged on the support, and the mounting plate is slidably arranged on the guide column. The reset spring is sleeved on the guide column, and the two ends of the reset spring are respectively abutted against the mounting plate and the support. A demoulding through hole is also opened on the injection bottom mold, and one end of the demoulding rod is arranged on the mounting plate, and the other end of the demoulding rod is passed through the demoulding through hole.

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