Injection mold with multi-layer cooling structure

Abstract

The utility model discloses an injection mold with a multi-layer cooling structure, and relates to the technical field of injection molds, the injection mold comprises a mold mechanism used for improving the uniformity of the mold cooling effect, the mold mechanism comprises a mold body unit, the mold body unit comprises a mold body, an upper-layer water channel is formed in the mold body, and a lower-layer water channel is formed in the mold body; a lower-layer water path is formed in the mold body; the connecting units are arranged on the left side and the right side of the mold body and used for achieving quick disassembly of connecting pipelines, the mold body and the upper-layer water way are arranged in the mold body, the mold body and the upper-layer water way are arranged in a stacked mode, and the mold body communicates with the upper-layer water way; therefore, the problem that the cooling effect is not uniform due to the fact that water flow is influenced by gravity in a traditional cooling system is effectively solved, the water flow can be more uniform in the flowing process, and the cooling effect of the mold is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molds, in particular to an injection mold with a multi-layer cooling structure. Background Art

[0002] In the field of injection molding machine mold design, the cooling system is a crucial link. The injection molding machine mold will generate a lot of heat during operation. If the heat cannot be dissipated in time and effectively, it will affect the service life of the mold and the quality of the injection molded product.

[0003] After checking the public (announcement) number: CN219883157U, a plastic mold with a circulating cooling structure is disclosed, including a lower mold body and an upper mold body, the lower mold body is provided with an ejection structure inside, a water tank is provided on the right side of the lower mold body, a refrigerator is provided inside the water tank, and a filter is provided above the refrigerator, a water pump is fixedly connected to the top of the water tank, a suction pipe is connected between the water pump and the water tank, a first cooling pipe is connected between the lower mold body and the water pump, and the other end of the first cooling pipe is connected to the second cooling pipe. This utility can filter the cooling water to prevent scale and impurities from adhering to the pipe, thereby affecting the subsequent absorption of heat from the mold. At the same time, not only can the injection molded part on the top of the lower mold body be circulated and cooled, but it is also convenient to cool the inside of the upper mold body, thereby improving the subsequent cooling effect.

[0004] Based on the above-mentioned prior art, the existing injection molds with cooling structures still have the following problems: the existing injection molding machine mold cooling systems mostly design horizontal and vertical water channels inside the mold to take away the heat of the mold through the flow of water. Although this design is simple and easy, the cooling effect is not ideal, because water will be affected by gravity during the flow, resulting in the water flow speed in the upper part being faster than that in the lower part, which makes the cooling effect of the mold uneven, and it is too cumbersome to disassemble the pipes passing the cooling medium when disassembling and replacing different molds. For this reason, the utility model provides an injection mold with a multi-layer cooling structure. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides an injection mold with a multi-layer cooling structure, which solves the following problems existing in the existing injection molds with cooling structures: most of the existing injection molding machine mold cooling systems are designed with horizontal and vertical water channels inside the mold, and the heat of the mold is taken away by the flow of water. Although this design is simple and easy, the cooling effect is not ideal, because water will be affected by gravity during the flow, resulting in the water flow speed in the upper part being faster than that in the lower part, which makes the cooling effect of the mold uneven, and it is too cumbersome to disassemble the pipes passing the cooling medium when disassembling and replacing different molds.

[0006] To achieve the above objectives, the utility model is implemented through the following technical solutions: an injection mold with a multi-layer cooling structure, including a mold mechanism, which is used to improve the uniformity of the mold cooling effect, and the mold mechanism includes:

[0007] The mold body unit comprises a mold body, an upper water channel is opened inside the mold body, and a lower water channel is opened inside the mold body;

[0008] The connection unit is arranged on the left and right sides of the mold body and is used to realize the rapid disassembly of the connection pipe.

[0009] Preferably, the connection unit comprises a cannula connected to the liquid inlet of the upper water channel through a pipeline, a slot is formed on the outer ring of the cannula, and a first blocking component is arranged inside the slot.

[0010] Preferably, the connecting unit also includes a sleeve movably sleeved on the outer ring of the insert tube, four clamping columns are installed in the internal sliding penetration of the sleeve, a retaining ring is fixedly installed on the outer ring of the sleeve, a sliding tube is slidingly sleeved on the outer ring of the sleeve, a pressure ring is fixedly installed inside the sliding tube, a pressure spring is sleeved on the outer ring of the sleeve, a mounting tube is fixedly installed inside the sleeve, and a second plugging assembly is arranged inside the mounting tube.

[0011] Preferably, the first blocking assembly includes a water-passing plate fixedly installed inside the insert tube, a plurality of water-passing holes being opened inside the water-passing plate, a sliding column being slidably penetrated inside the water-passing plate, a plug being fixedly installed at one end of the sliding column, a top column being fixedly installed at the end of the plug away from the sliding column, and a return spring being provided on the outer ring of the sliding column.

[0012] Preferably, the bottom end of the clamping column slides into the interior of the clamping slot.

[0013] Preferably, one end of the sliding tube is an inclined surface, and the inclined surface of the sliding tube contacts the upper end of the clamping column.

[0014] Preferably, the first blocking component and the second blocking component have the same structure.

[0015] The utility model provides an injection mold with a multi-layer cooling structure. Compared with the prior art, it has the following beneficial effects:

[0016] (1) The injection mold with a cooling structure is provided with a mold body and an upper water channel inside the mold body, and the mold body and the upper water channel are opened in a stacked manner, and the mold body and the upper water channel are connected, thereby effectively solving the problem of uneven cooling effect caused by the influence of gravity on water flow in the traditional cooling system, and can make the water flow more uniform during the flow process, thereby improving the cooling effect of the mold.

[0017] (2) The injection mold with a cooling structure is provided with a connection unit. When a user pulls the slide tube, the pressure ring squeezes the pressure spring. At this time, the insert tube is inserted into the interior of the sleeve, and the clamping column rises. The user stops pulling the slide tube. The pressure spring pushes the pressure ring through its own elastic force to drive the slide tube to move. The inclined end of the slide tube squeezes the top of the clamping column, so that the bottom end of the clamping column is clamped into the inside of the clamping groove. When disassembling, the clamping column can be pulled to disassemble, thereby realizing rapid disassembly between pipes, which is convenient for replacing the mold. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a right-side stereoscopic structural diagram of the utility model;

[0019] Figure 2 This is a top sectional three-dimensional structural diagram of the mold of the utility model;

[0020] Figure 3 This is a three-dimensional cross-sectional structural diagram of the mold bottom of the utility model;

[0021] Figure 4 This is a cross-sectional three-dimensional structural diagram of the connection unit of the utility model;

[0022] Figure 5 This is a three-dimensional structural diagram of the sub-connection assembly of the utility model;

[0023] Figure 6 This is a three-dimensional structural diagram of the female connection assembly of the utility model;

[0024] Figure 7 It is a three-dimensional structural diagram of the plugging component of the utility model.

[0025] In the figure: 1-mold mechanism, 11-mold body unit, 111-mold body, 112-upper water channel, 113-lower water channel, 2-connecting unit, 21-sub-connecting assembly, 211-insertion pipe, 212-card slot, 3-first plugging assembly, 31-water plate, 32-water hole, 33-sliding column, 34-plugging head, 35-top column, 36-reset spring, 22-female connection assembly, 221-sleeve, 222-card post, 223-sliding pipe, 224-pressure ring, 225-blocking ring, 226-pressure spring, 227-installation tube, 4-second plugging assembly. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] See also Figure 1-Figure 7 , the utility model provides a technical solution:

[0028] An injection mold with a multi-layer cooling structure includes a mold mechanism 1, which is used to improve the uniformity of the mold cooling effect. The mold mechanism 1 includes:

[0029] The mold body unit 11 includes a mold body 111 , an upper water channel 112 is opened inside the mold body 111 , and a lower water channel 113 is opened inside the mold body 111 ;

[0030] The connection unit 2 is arranged on the left and right sides of the mold body 111 and is used to realize the rapid disassembly of the connection pipe.

[0031] The mold body 111 and the upper water channel 112 are provided inside the mold body 111, and the mold body 111 and the upper water channel 112 are opened in a stacked manner, and the mold body 111 and the upper water channel 112 are connected, and the diameter of the upper water channel 112 is 10 mm, the diameter of the lower water channel 113 is 8 mm, and the distance between the two layers of water channels is 5 mm, thereby effectively solving the problem of uneven cooling effect caused by the influence of gravity on water flow in traditional cooling systems, and can make the water flow more uniform during the flow process, thereby improving the cooling effect of the mold.

[0032] In the cooling system, in addition to traditional water as a cooling medium, liquid nitrogen is introduced as an auxiliary cooling medium. The temperature of liquid nitrogen is -196°C, which can quickly reduce the temperature of the mold, thereby improving the cooling effect and meeting higher cooling requirements.

[0033] In this embodiment, the connection unit 2 includes a plug 211 connected to the liquid inlet of the upper water channel 112 through a pipeline. The outer ring of the plug 211 is provided with a slot 212, and the first blocking component 3 is arranged inside the slot 212.

[0034] In this embodiment, the connecting unit 2 also includes a sleeve 221 that is movably sleeved on the outer ring of the insert tube 211, and four clamping columns 222 are installed in the internal sliding penetration of the sleeve 221. A retaining ring 225 is fixedly installed on the outer ring of the sleeve 221. A sliding sleeve is provided with a sliding tube 223 on the outer ring of the sleeve 221, and a pressure ring 224 is fixedly installed inside the sliding tube 223. A pressure spring 226 is sleeved on the outer ring of the sleeve 221, and a mounting tube 227 is fixedly installed inside the sleeve 221, and a second plugging component 4 is arranged inside the mounting tube 227.

[0035] The user pulls the slide tube 223 and the pressure ring 224 squeezes the pressure spring 226. At this time, the insert tube 211 is inserted into the interior of the sleeve 221, and the clamping column 222 rises. The user stops pulling the slide tube 223. The pressure spring 226 pushes the pressure ring 224 through its own elastic force to drive the slide tube 223 to move. The inclined end of the slide tube 223 squeezes the top of the clamping column 222, so that the bottom end of the clamping column 222 is stuck in the interior of the clamping groove 212. When disassembling, pull the clamping column 222 to disassemble, thereby realizing rapid disassembly between pipes, which is convenient for replacing the mold.

[0036] In this embodiment, the first blocking component 3 includes a water-passing plate 31 fixedly installed inside the insert tube 211, a plurality of water-passing holes 32 are opened inside the water-passing plate 31, a sliding column 33 is slidably installed inside the water-passing plate 31, a plug 34 is fixedly installed at one end of the sliding column 33, a top column 35 is fixedly installed at the end of the plug 34 away from the sliding column 33, and a return spring 36 is provided on the outer ring of the sliding column 33.

[0037] When the sub-connection component 21 is docked with the mother connection component 22, the top columns 35 of the first plugging component 3 and the second plugging component 4 are squeezed relative to each other, so that the plug 34 squeezes the return spring 36, and the water inlet of the plug 211 and the water outlet 2227 are separated, so that the cooling medium can circulate. After the sub-connection component 21 and the mother connection component 22 are disassembled, the return spring 36 pushes the plug 34 to seal the water inlet of the plug 211 and the water outlet 2227 through its own elastic force to prevent the cooling medium from flowing out.

[0038] In this embodiment, the bottom end of the locking column 222 is slidably locked into the interior of the locking slot 212 .

[0039] In this embodiment, one end of the sliding tube 223 is an inclined surface, and the inclined surface of the sliding tube 223 contacts the upper end of the clamping column 222 .

[0040] The upper end of the clamping column 222 is an arc surface. When the sliding tube 223 moves, the clamping column 222 moves downward along the inclined surface of the sliding tube 223 and is clamped into the interior of the clamping groove 212 .

[0041] In this embodiment, the first blocking component 3 and the second blocking component 4 have the same structure.

[0042] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0043] When working, the user first pulls the slide tube 223, and the pressure ring 224 squeezes the pressure spring 226. At this time, the insert tube 211 is inserted into the interior of the sleeve 221, and the column 222 rises. The user stops pulling the slide tube 223, and the pressure spring 226 pushes the pressure ring 224 through its own elastic force to drive the slide tube 223 to move, and the inclined end of the slide tube 223 squeezes the top of the column 222, so that the bottom end of the column 222 is stuck in the groove 212. At the same time, the top column 35 of the first plugging component 3 and the second plugging component 4 are relatively squeezed to make the plug 34 squeeze the return spring 36, and the water inlet of the insert tube 211 and the water outlet 2227 are separated, so that the cooling medium can circulate. When disassembling, the column 222 can be disassembled, and after disassembly, the return spring 36 pushes the plug 34 to block the water inlet of the insert tube 211 and the water outlet 2227 through its own elastic force to prevent the cooling medium from flowing out.

[0044] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0045] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An injection mold with a multi-layer cooling structure, characterized in that: The invention comprises a mold mechanism (1) for improving the uniformity of the cooling effect of the mold, wherein the mold mechanism (1) comprises: The mold body unit (11) comprises a mold body (111), an upper water channel (112) is provided inside the mold body (111), and a lower water channel (113) is provided inside the mold body (111); The connection unit (2) is arranged on the left and right sides of the mold body (111) and is used to realize the rapid disassembly of the connection pipe.

2. The injection mold with a multi-layer cooling structure according to claim 1, characterized in that: The connection unit (2) comprises a plug (211) connected to a liquid inlet of an upper waterway (112) via a pipeline, a slot (212) being provided on an outer ring of the plug (211), and a first blocking component (3) being provided inside the slot (212).

3. The injection mold with a multi-layer cooling structure according to claim 2, characterized in that: The connecting unit (2) further comprises a sleeve (221) movably sleeved on the outer ring of the insert tube (211); four clamping columns (222) are installed in the sleeve (221) for sliding through; a retaining ring (225) is fixedly installed on the outer ring of the sleeve (221); a sliding tube (223) is slidably sleeved on the outer ring of the sleeve (221); a pressure ring (224) is fixedly installed on the inside of the sliding tube (223); a pressure spring (226) is sleeved on the outer ring of the sleeve (221); a mounting tube (227) is fixedly installed on the inside of the sleeve (221); a second plugging assembly (4) is arranged inside the mounting tube (227).

4. The injection mold with a multi-layer cooling structure according to claim 2, characterized in that: The first blocking component (3) comprises a water-passing plate (31) fixedly mounted inside the insert tube (211), a plurality of water-passing holes (32) being provided inside the water-passing plate (31), a sliding column (33) being slidably penetrated inside the water-passing plate (31), a plug (34) being fixedly mounted on one end of the sliding column (33), a top column (35) being fixedly mounted on the end of the plug (34) away from the sliding column (33), and a return spring (36) being provided on the outer ring of the sliding column (33).

5. The injection mold with a multi-layer cooling structure according to claim 3, characterized in that: The bottom end of the clamping column (222) is slidably clamped into the interior of the clamping slot (212).

6. The injection mold with a multi-layer cooling structure according to claim 3, characterized in that: One end of the sliding tube (223) is an inclined surface, and the inclined surface of the sliding tube (223) is in contact with the upper end of the clamping column (222).

7. The injection mold with a multi-layer cooling structure according to claim 3, characterized in that: The first blocking component (3) and the second blocking component (4) have the same structure.

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