Cooling system for injection mold

Abstract

The utility model provides a heat dissipation system of an injection mold, which relates to the technical field of injection molds and comprises a main injection mold, a mold copper water nozzle and an on-off valve core, the side surface of the main injection mold is in threaded connection with the mold copper water nozzle and the on-off valve core, a cooling water channel is arranged in the main injection mold, and the cooling water channel is communicated with the on-off valve core. The cooling water channel is communicated with the expansion water channel, an on-off valve body is arranged in the middle of the expansion water channel, the cooling water channel is of a U-shaped structure, and the head end and the tail end of the cooling water channel are communicated with mold copper water nozzles. Two single straight-through water channels are combined into a U-shaped cooling water channel, the cooling water channels are arranged in a main injection mold at intervals in an array mode, an expansion water channel is communicated between every two adjacent cooling water channels, water is conveyed to surround a circle in the mold, the number of mold copper water nozzles is reduced, and the problems that a mold water channel is a single straight-through water channel, and the number of external copper water nozzles is large are solved. And a large amount of time is consumed for mold testing personnel to connect an external copper water nozzle through a water pipe.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molds, in particular to a heat dissipation system for an injection mold. Background Art

[0002] When the key product mold is installed on the injection molding machine, it is necessary to use a water pipe to connect the external copper water nozzle on the mold to connect the water circuit and achieve the effect of cooling the mold with circulating water.

[0003] Because the existing mold water channel is a single straight water channel, it requires a large number of external copper water nozzles. It takes a lot of time for mold testers to connect the external copper water nozzles with water pipes, which seriously affects the mold loading efficiency and the cost of external copper water nozzles is also high. Summary of the invention

[0004] The disclosed embodiments relate to a heat dissipation system for an injection mold. Compared with an original single straight water channel, a U-shaped cooling water channel is formed by merging two single straight water channels into one U-shaped cooling water channel, and the water channel circulation mode is changed from left-in and right-out to right-in and right-out, so that the cooling water can flow around the mold, thereby extending the length of the water channel, reducing the number of copper faucets of the mold, improving the mold-mounting efficiency of mold trial personnel, and reducing the cost of copper faucets of the mold.

[0005] According to a first aspect of the present disclosure, a heat dissipation system for an injection mold is provided, which specifically includes: a main injection mold, a mold copper faucet and an on-off valve core, wherein the side of the main injection mold is screwed with the mold copper faucet, the side of the main injection mold is screwed with the on-off valve core and a sealing rubber ring is provided, a cooling water channel is opened inside the main injection mold, the cooling water channel is connected to an extended water channel, an on-off valve body is provided in the middle of the extended water channel, the cooling water channel is connected to the mold copper faucet and a sealing rubber ring is provided.

[0006] Furthermore, the cooling water channel is a U-shaped structure. The U-shaped cooling water channel is equivalent to two original water channels connected together to change into a series form. The water circulation mode is changed from left-in and right-out to right-in and right-out. Both ends of the cooling water channel are connected to the mold copper water nozzles.

[0007] Furthermore, the cooling water channel interval array is arranged inside the main injection mold, and adjacent cooling water channels are connected by extended water channels, allowing water to make a U-shaped circle along the cooling water channel. Compared with the original single straight water channel, the two original single straight water channels of the cooling water channel are merged into a U-shaped cooling water channel, extending the length of the water channel. A water channel with the same length as the cooling water channel originally requires four mold copper faucets, while the cooling water channel only requires two mold copper faucets.

[0008] Furthermore, an inner screw is rotated in the middle of the on-off valve core, and the tail end section of the inner screw is threadedly connected to the center of the main sealing valve core. When the inner screw rotates, the main sealing valve core moves axially along the thread of the inner screw.

[0009] Furthermore, the head end of the main sealing valve core is axially slidably connected to the on-off valve core, a sealing ring is arranged on the outside of the main sealing valve core, and the tail end section of the main sealing valve core is slidably sealed to the inner side of the on-off valve body.

[0010] Furthermore, the main sealing valve core moves toward the side of the on-off valve core, and the main sealing valve core moves away from the on-off valve body. The extended water channels and cooling water channels on both sides of the on-off valve body are connected. The two cooling water channels use two mold copper water nozzles to connect to the external pipeline, and the four mold copper water nozzles of the two cooling water channels are reduced to two.

[0011] Furthermore, the main sealing valve core moves toward one side of the on-off valve body, and the main sealing valve core moves into the on-off valve body, and the expansion water channels and cooling water channels on both sides of the on-off valve body are in a disconnected state.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] Compared with the original single straight water channel, the U-shaped cooling water channel merges two single straight water channels into one U-shaped cooling water channel, which extends the length of the water channel, reduces the number of mold copper nozzles, improves the mold trial personnel's mold-loading efficiency, and reduces the cost of mold copper nozzles.

[0014] Adjacent cooling water channels can also be connected simultaneously through the on-off valve core. The two cooling water channels are connected in series, which further reduces the number of connections of the mold copper water nozzles, further reduces the number of installation connections of the mold copper water nozzles and external water pipelines, and further speeds up the mold placement efficiency of the trial mold. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solution of the embodiment of the utility model, the drawings of the embodiment will be briefly introduced below.

[0016] The drawings described below only relate to some embodiments of the present invention, but are not intended to limit the present invention.

[0017] In the attached picture:

[0018] Figure 1 A schematic cross-sectional structure diagram of the main injection mold of the present application is shown;

[0019] Figure 2 A schematic diagram showing the structure of the disconnected state of the extended water channels on both sides of the on-off valve body of the present application;

[0020] Figure 3 A schematic diagram showing the cooling water channel structure of the present application is shown;

[0021] Figure 4 A schematic diagram showing the on-off valve body structure of the present application is shown;

[0022] Figure 5 A structural schematic diagram showing the connection state of the extended water channels on both sides of the on-off valve body of the present application;

[0023] Figure 6 A schematic diagram showing the structure of the cooling water channel, the mold copper water nozzle and the on-off valve core in the separated state of the present application is shown;

[0024] Reference numerals list

[0025] 1. Main injection mold; 101. Cooling water channel; 102. Expansion water channel; 103. On-off valve body;

[0026] 2. Mould copper water nozzle;

[0027] 3. On-off valve core; 301. Internal screw; 302. Main sealing valve core. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution of the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings of the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the described embodiment of 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.

[0029] Example 1: Please refer to Figures 1 to 6 :

[0030] The utility model proposes an injection mold heat dissipation system, comprising: a main injection mold 1, a mold copper water nozzle 2 and an on-off valve core 3, a cooling water channel 101 is opened inside the main injection mold 1, the cooling water channel 101 is connected to an extended water channel 102, an on-off valve body 103 is arranged in the middle of the extended water channel 102, the cooling water channel 101 is connected to the mold copper water nozzle 2 and is provided with a sealing rubber ring, the cooling water channel 101 is a U-shaped structure, the U-shaped cooling water channel 101 is equal to two original water channels connected and changed to a series form, the water circulation mode is changed from left-in and right-out to right-in and right-out, and both ends of the cooling water channel 101 are connected There is a mold copper faucet 2, the side of the main injection mold 1 is threadedly connected with the mold copper faucet 2, the side of the main injection mold 1 is threadedly connected with an on-off valve core 3 and is provided with a sealing rubber ring, the middle part of the on-off valve core 3 is rotated with an internal screw 301, the tail end section of the internal screw 301 is threadedly connected with the center of the main sealing valve core 302, the internal screw 301 rotates, the main sealing valve core 302 moves axially along the thread of the internal screw 301, the head end of the main sealing valve core 302 is axially slidably connected with the on-off valve core 3, a sealing ring is provided on the outside of the main sealing valve core 302, and the tail end section of the main sealing valve core 302 is slidably sealed with the inner side of the on-off valve body 103.

[0031] In the disclosed embodiment, the cooling water channels 101 are arranged in an array at intervals inside the main injection mold 1, and adjacent cooling water channels 101 are connected by extended water channels 102, allowing water to make a U-shaped circle along the cooling water channels 101. Compared with the original single straight water channel, the cooling water channel 101 is composed of two original single straight water channels, which are merged into a U-shaped cooling water channel 101 to extend the length of the water channel. A water channel with the same length as the cooling water channel 101 originally requires four mold copper water nozzles 2, while the cooling water channel 101 only requires two mold copper water nozzles 2. The mold copper water nozzles 2 are connected to an external cooling water circulation pipeline, thereby achieving the purpose of reducing the number of mold copper water nozzles 2 and reducing the cost of the mold copper water nozzles 2.

[0032] In the disclosed embodiment, the main sealing valve core 302 moves toward the side of the on-off valve core 3, and the main sealing valve core 302 moves away from the on-off valve body 103. The extended water channels 102 and the cooling water channels 101 on both sides of the on-off valve body 103 are connected. The two cooling water channels 101 form a structure approximately in the shape of a bow. The two cooling water channels 101 use two mold copper water nozzles 2 to connect to the external cooling water circulation pipeline. The four mold copper water nozzles 2 of the two cooling water channels 101 are reduced to two, further reducing the number of connections of the mold copper water nozzles 2, and further reducing the number of connections between the mold copper water nozzles 2 and the external water pipeline, thereby achieving the purpose of reducing the number of mold copper water nozzles 2, improving the mold installation efficiency of the mold trial personnel, and shortening the mold installation time.

[0033] In the disclosed embodiment, the main sealing valve core 302 moves toward the side of the on-off valve body 103, and the main sealing valve core 302 moves to the inside of the on-off valve body 103. The extended water channels 102 and the cooling water channels 101 on both sides of the on-off valve body 103 are not connected. The cooperation of multiple cooling water channels 101 has a better cooling effect, shortens the flow time of cooling water, reduces the temperature rise of cooling water, takes away more heat from the mold, adapts to the use of injection molds with larger volume and greater heat dissipation requirements, further reduces the number of connections of the mold copper faucet 2, and further reduces the number of installation connections between the mold copper faucet 2 and the external water pipeline.

[0034] Embodiment 2, on the basis of embodiment 1, the on-off valve core 3, the inner screw 301 and the main sealing valve core 302 are not provided, and the extended water channel 102 and the on-off valve body 103 are not provided, and the adjacent cooling water channels 101 are disconnected and not connected, thereby reducing the installation and assembly costs of the on-off valve core 3, the inner screw 301, the main sealing valve core 302, the extended water channel 102 and the on-off valve body 103, and further reducing the manufacturing cost.

[0035] The working principle of this embodiment is as follows: the main injection mold 1 of the key product is installed on the injection molding machine, and then the connection operation of the external cooling water circulation pipeline is carried out. The cooling water channel 101 is a U-shaped structure. The original water channel is a straight line through. Both ends of the original water channel are provided with mold copper water nozzles 2. The U-shaped cooling water channel 101 is equal to two original water channels connected and changed into a series form. The water circulation mode is changed from left in and right out to right in and right out, so that water can make a U-shaped circle along the cooling water channel 101. Compared with the original single straight water channel, the two original single straight water channels of the cooling water channel 101 are merged into a U-shaped cooling water channel 101, extending the length of the water channel. The water channel with the same length as the cooling water channel 101 requires four mold copper water nozzles 2, while the cooling water channel 101 only requires two mold copper water nozzles 2, thereby achieving the purpose of reducing the number of mold copper water nozzles 2, reducing the cost of mold copper water nozzles 2, reducing the number of connections with the external cooling water circulation pipeline, and improving the mold-mounting efficiency of the trial mold personnel;

[0036] The inner screw 301 rotates, and the main sealing valve core 302 moves along the thread axis of the inner screw 301 close to the on-off valve core 3, and the main sealing valve core 302 moves away from the on-off valve body 103, and the on-off valve body 103 is turned into a connected state, and the extended water channel 102 and the cooling water channel 101 on both sides of the on-off valve body 103 are connected, and the two redundant mold copper water nozzles 2 of the cooling water channel 101 are replaced and blocked by sealing members, and the two adjacent cooling water channels 101 are connected, so that the two cooling water channels 101 are connected in series, and the two cooling water channels 101 use two mold copper water nozzles 2 to connect to the external cooling water circulation pipeline, and the four mold copper water nozzles 2 of the two cooling water channels 101 are reduced to two, thereby further reducing the number of connections of the mold copper water nozzles 2, and further reducing the number of installation connections between the mold copper water nozzles 2 and the external water pipeline, thereby further accelerating the mold upper mold efficiency of the trial mold.

Claims

1. An injection mold heat dissipation system, comprising: A main injection mold (1), a mold copper faucet (2) and an on-off valve core (3); the characteristics are that the mold copper faucet (2) is screwed on the side of the main injection mold (1), the on-off valve core (3) is screwed on the side of the main injection mold (1), a cooling water channel (101) is opened inside the main injection mold (1), the cooling water channel (101) is connected to the expansion water channel (102), and an on-off valve body (103) is arranged in the middle of the expansion water channel (102).

2. The injection mold heat dissipation system according to claim 1, characterized in that: The cooling water channel (101) is a U-shaped structure, and both ends of the cooling water channel (101) are connected to the mold copper water nozzle (2).

3. The injection mold heat dissipation system according to claim 2, characterized in that: The cooling water channels (101) are arranged in an array at intervals inside the main injection mold (1), and adjacent cooling water channels (101) are connected by expansion channels (102).

4. The injection mold heat dissipation system according to claim 1, characterized in that: An internal screw (301) is rotatably arranged in the middle of the on-off valve core (3), and the tail end section of the internal screw (301) is threadedly connected to the center of the main sealing valve core (302).

5. The injection mold heat dissipation system according to claim 4, characterized in that: The head end of the main sealing valve core (302) is axially slidably connected to the on-off valve core (3), and the tail end section of the main sealing valve core (302) is slidably sealed to the inner side of the on-off valve body (103).

6. The injection mold heat dissipation system according to claim 5, characterized in that: The main sealing valve core (302) moves toward one side of the on-off valve core (3), and the main sealing valve core (302) moves away from the on-off valve body (103), and the expansion water channel (102) and the cooling water channel (101) on both sides of the on-off valve body (103) are in a connected state.

7. The injection mold heat dissipation system according to claim 6, characterized in that: The main sealing valve core (302) moves toward one side of the on-off valve body (103), and the main sealing valve core (302) moves into the on-off valve body (103), and the expansion water channel (102) and the cooling water channel (101) on both sides of the on-off valve body (103) are in a disconnected state.

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