Injection mold for lead core box body

Abstract

The utility model relates to a lead core box injection mold which comprises a fixed mold body and a movable mold body, a mold core is arranged on the movable mold body, the mold core is in a side opening type and is in sliding connection with the movable mold body, a plurality of movable mold inserts are arranged on the movable mold body and can be inserted into the mold core, cooling water channels are formed in the movable mold inserts, a water inlet channel and a water outlet channel are formed in the movable mold body, and the water inlet channel and the water outlet channel are communicated with each other. The water inlet channel and the water outlet channel are arranged in the arrangement direction of the movable mold inserts and connected with the two ends of the cooling water channel respectively. The side opening type mold cores are arranged on the fixed mold and the movable mold, mold opening is convenient, meanwhile, the movable mold insert is arranged on the movable mold, the cooling water channel is formed in the movable mold insert, and the water inlet channel and the water outlet channel which are formed in the movable mold are combined, so that rapid cooling of the movable mold insert can be guaranteed, and demolding is convenient; the water inlet channel and the water outlet channel are connected with the two ends of the cooling water channel respectively, one-way flowing of cooling water can be guaranteed, the cooling efficiency is improved, and the finished product quality is guaranteed.

Description

Technical Field

[0001] The present application relates to the field of mold technology, and in particular to a lead core box body injection mold. Background Art

[0002] An injection mold generally includes a fixed mold and a movable mold. The fixed mold is provided with a flow channel for liquid plastic to flow through, and a cavity connected to the flow channel. A core is provided on the movable mold. When the movable mold abuts against the static mold, an injection cavity is formed between the core and the cavity. The liquid plastic is injected into the flow channel by an injection molding machine, and then transported to the injection cavity through the flow channel. The injection cavity is then cooled to solidify the plastic into the desired product shape, and then the static mold and the movable mold are driven to separate. Finally, the molded product is ejected from the injection cavity by the ejector pin to complete the product production.

[0003] During the injection molding process of the lead core box, due to the small size of the lead core box, the water channel structure in the mold needs to be specially considered. At present, the water channels of the mold mostly flow inside the mold body, and the water inlet and outlet use the same channel, which has low cooling efficiency and inconvenient processing. Therefore, a new lead core box body injection mold is designed. Utility Model Content

[0004] The present application provides a lead core box body injection mold which has fast cooling speed and is easy to process.

[0005] The lead core box body injection mold provided in this application adopts the following technical solution:

[0006] A lead core box body injection mold comprises a fixed mold and a movable mold, wherein a core is arranged on the movable mold, the core is a side-opening type and the core is slidably connected to the movable mold, a plurality of movable mold inserts are arranged on the movable mold and the movable mold inserts can be inserted into the core, a cooling water channel is arranged in the movable mold insert, a water inlet channel and a water outlet channel are arranged in the movable mold, the water inlet channel and the water outlet channel are arranged along the direction in which the movable mold inserts are arranged, and the water inlet channel and the water outlet channel are respectively connected to the two ends of the cooling water channel.

[0007] Preferably, the fixed mold and the movable mold are connected through guide rods and guide sleeves, the fixed mold includes a fixed plate and a diverter plate, a positioning ring is provided on the fixed plate and a feed port is provided in the positioning ring, a diverter groove is provided on one side of the diverter plate close to the fixed plate and the diverter groove is connected to the end of the feed port, a plurality of diverter holes are provided on the diverter groove, and the positions of the diverter holes correspond to the positions of the movable mold inserts.

[0008] Preferably, a pulling needle is embedded between the fixed plate and the diverter plate, there are multiple pulling needles and the positions of the pulling needles correspond to the diverter holes, the ends of the pulling needles are spherical and extend into the diverter holes.

[0009] Preferably, the diverter groove comprises a first groove arranged on the diverter plate and a plurality of second grooves connected to the first groove, the second grooves are evenly arranged along the length direction of the first grooves, and the diverter holes are arranged on the second grooves.

[0010] Preferably, a pair of guide rods are embedded on the diverter plate and are arranged to be inclined outward, and guide holes corresponding to the guide rods are arranged on the core. The core includes two movably connected left and right parts and a plurality of molding grooves are arranged on one side of the left and right parts close to each other, and the upper end of the molding groove can be connected with the diverter hole, and a molding cavity is formed between the molding groove and the movable mold insert.

[0011] Preferably, the cross-sectional view of the core is an isosceles trapezoid, the core can be embedded in the fixing plate, and both sides of the fixing plate are inclined surfaces that match the angle of the core.

[0012] Preferably, the movable mold includes a mounting plate and a bottom plate, the mounting plate is provided with the core in sliding connection, the bottom plate is movably connected to the mounting plate and the movable mold insert is embedded in the bottom plate, and the water inlet channel and the water outlet channel are provided on the bottom plate.

[0013] Preferably, the cooling water channel is inverted U-shape, the water inlet channel and the water outlet channel are respectively embedded on both sides of the bottom plate and are staggered, and the water inlet channel and the water outlet channel are respectively provided with a plurality of holes connected to the cooling water channel.

[0014] In summary, the present application includes at least one of the following beneficial technical effects:

[0015] 1. The present application provides side-opening cores on the fixed mold and the movable mold to facilitate mold opening. At the same time, a movable mold insert is provided on the movable mold and a cooling water channel is provided in the movable mold insert. Combined with the water inlet channel and the water outlet channel provided on the movable mold, rapid cooling of the movable mold insert can be ensured, which facilitates demolding. By connecting the water inlet channel and the water outlet channel to the two ends of the cooling water channel respectively, the cooling water can be ensured to flow in one direction, thereby improving the cooling efficiency and ensuring the quality of the finished product.

[0016] 2. By setting the diversion groove and diversion hole on the diversion plate of the fixed mold, the melted material can be guaranteed to flow evenly. At the same time, a pulling needle is set on the fixed plate. The end of the pulling needle is spherical and extends into the diversion hole, which can make the melted material enter evenly and ensure the quality of the finished product.

[0017] 3. By setting the cooling water channel on the movable mold insert into a U shape, and at the same time setting the water inlet channel and the water outlet channel along the arrangement direction of the movable mold insert and staggering the water inlet channel and the water outlet channel, the water inlet channel and the water outlet channel are connected with the cooling water channel through the holes set thereon, ensuring that the cooling water can enter the cooling water channel through the water inlet channel, and be discharged through the water outlet channel after passing through the cooling water channel completely, ensuring the unidirectional flow of the cooling water, effectively improving the cooling speed and efficiency, and ensuring the quality of the finished product. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is an exploded view of the lead core box body injection mold in the preferred embodiment of the present application.

[0019] Figure 2 It is an exploded view of the lead core box body from another perspective in the preferred embodiment of the present application.

[0020] Figure 3 It is a schematic diagram of the structure of the fixing plate in a preferred embodiment of the present application.

[0021] Figure 4 It is a schematic diagram of the structure of the diverter plate in the preferred embodiment of the present application.

[0022] Figure 5 It is a structural schematic diagram of the movable mold insert in the preferred embodiment of the present application.

[0023] Figure 6 It is a transverse cross-sectional view of the movable mold insert in the preferred embodiment of the present application.

[0024] Figure 7 It is a longitudinal cross-sectional view of the movable mold insert in the preferred embodiment of the present application.

[0025] Figure 8 It is a structural schematic diagram of the movable mold in a preferred embodiment of the present application.

[0026] Fig. 9 It is an exploded view of the base plate in the preferred embodiment of the present application.

[0027] Fig.10 It is a cross-sectional view of the base plate in a preferred embodiment of the present application.

[0028] Explanation of the reference numerals: 1. fixed mold; 101. fixed plate; 101a. pulling needle; 102. diverter plate; 102a. diverter groove; 102b. diverter hole; 2. movable mold; 201. mounting plate; 202. bottom plate; 3. core; 301. guide hole; 302. molding groove; 4. movable mold insert; 401. cooling water channel; 5. water inlet channel; 6. water outlet channel; 7. guide rod. DETAILED DESCRIPTION

[0029] The present application is further described in detail below in conjunction with the accompanying drawings.

[0030] The embodiment of the present application discloses a lead core box body injection mold.

[0031] Reference Figures 1 to 10 A lead core box body injection mold, comprising a fixed mold 1 and a movable mold 2, the fixed mold 1 and the movable mold 2 are connected by a guide rod and a guide sleeve, the fixed mold 1 comprises a fixed plate 101 and a diverter plate 102, a positioning ring is provided on the fixed plate 101 and a feed port is provided in the positioning ring, a diverter groove 102a is provided on the side of the diverter plate 102 close to the fixed plate 101, and the diverter groove 102a is connected to the end of the feed port, specifically, a glue feed nozzle is provided in the feed port in this embodiment, the glue feed nozzle is connected to the center of the diverter groove 102a, and a plurality of diverters are provided on the diverter groove 102a. Hole 102b, specifically, the diverter groove 102a includes a first groove arranged on the diverter plate 102 and a plurality of second grooves connected to the first groove, the second grooves are evenly arranged along the length direction of the first groove, and the second grooves are provided with diverter holes 102b; a pulling needle 101a is embedded between the fixed plate 101 and the diverter plate 102, there are a plurality of pulling needles 101a and the positions of the pulling needles 101a correspond to the diverter holes 102b, the end of the pulling needle 101a is spherical and the end of the pulling needle 101a extends into the diverter hole 102b.

[0032] Reference Figures 1 to 8 The movable mold 2 includes a mounting plate 201 and a bottom plate 202. The mounting plate 201 is provided with a core 3 in sliding connection. The core 3 is a side-opening type and the core 3 is slidably connected to the movable mold 2. The bottom plate 202 is movably connected to the mounting plate 201 and a movable mold insert 4 is embedded in the bottom plate 202. The bottom plate 202 is also provided with a water inlet channel 5 and a water outlet channel 6. The position of the movable mold insert 4 corresponds to the position of the diversion hole 102b and the movable mold insert 4 can be inserted into the core 3. Specifically, the core 3 includes two movably connected left and right parts and the left and right parts are A plurality of molding grooves 302 are arranged on one side close to each other, the upper ends of the molding grooves 302 can be connected with the diverter hole 102b, and a molding cavity is formed between the molding grooves 302 and the movable mold insert 4. The cross-sectional view of the core 3 is an isosceles trapezoid. The core 3 can be embedded in the fixed plate 101, and the two sides of the fixed plate 101 are inclined surfaces and match the angle of the core 3; a pair of guide rods 7 are embedded on the diverter plate 102 and the guide rods 7 are arranged inclined outward, and a guide hole 301 corresponding to the guide rod 7 is arranged on the core 3.

[0033] Reference Figures 5 to 10, a cooling water channel 401 is arranged in the movable mold insert 4, and the cooling water channel 401 is an inverted U shape. The movable mold insert 4 in this embodiment is a rectangular parallelepiped. The cooling water channel 401 takes in water from one end of the bottom of the movable mold insert 4, bends at the front of the movable mold insert 4 and finally discharges water from the other end of the bottom of the movable mold insert 4. A water inlet channel 5 and a water outlet channel 6 are arranged in the bottom plate 202, and the water inlet channel 5 and the water outlet channel 6 are respectively connected to the two ends of the cooling water channel 401. The water inlet channel 5 and the water outlet channel 6 are arranged along the arrangement direction of the movable mold insert 4. Specifically, the water inlet channel 5 and the water outlet channel 6 in this embodiment are both one-way channels, and the water inlet channel 5 and the water outlet channel 6 are staggered. The ends of the water inlet channel 5 and the water outlet channel 6 are respectively arranged on both sides of the bottom plate 202, and a plurality of holes connected to the cooling water channel 401 are respectively arranged on the water inlet channel 5 and the water outlet channel 6, which can ensure the cooling efficiency.

[0034] The implementation principle is as follows: when the present application is in use, the fixed mold 1 is connected to the injection system of the injection molding machine, and the movable mold 2 is connected to a driving mechanism. Before injection molding, the fixed mold 1 and the movable mold 2 are molded together, and the heated and melted materials of the fixed mold 1 and the movable mold 2 enter the diverter groove 102a through the feed port, and enter the diverter holes 102b one by one after being diverted by the diverter groove 102a. The diverter holes 102b are connected to the core 3 and the movable mold insert 4 is provided in the core 3. The melted injection molding material enters between the core 3 and the movable mold insert 4 for molding. During the injection molding process, cooling water or coolant is passed through the water inlet channel 5, and the cooling water or coolant enters the cooling water channel 401 of the movable mold insert 4 through multiple holes on the water inlet channel 5. After cooling After passing through the water channel 401, it is discharged from the other end of the cooling water channel 401 and enters the water outlet channel 6 for collection, and is finally discharged through the water outlet channel 6, thereby realizing the unidirectional flow of cooling water or coolant and ensuring the cooling efficiency. After the cooling of the injection molded product is completed, the movable mold 2 is driven by the driving mechanism to be demoulded. During the demoulding process, the core 3 moves to both sides under the action of the guide rod 7 to expose the finished product that has been injected inside. Then the driving mechanism drives the bottom plate 202 to move. Since the movable mold insert 4 is connected to the bottom plate 202, the movable mold insert 4 will be driven to move during the movement of the bottom plate 202, and finally the injection molded product will be removed from the movable mold insert 4. During injection molding, the finished product falls into the material receiving box below to complete the injection molding.

[0035] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A lead core box body injection mold, characterized in that: The invention comprises a fixed mold (1) and a movable mold (2), wherein a core (3) is arranged on the movable mold (2), the core (3) is a side-opening type and the core (3) is slidably connected to the movable mold (2), a plurality of movable mold inserts (4) are arranged on the movable mold (2), and the movable mold inserts (4) can be inserted into the core (3), a cooling water channel (401) is arranged in the movable mold inserts (4), and a water inlet channel (5) and a water outlet channel (6) are arranged in the movable mold (2), the water inlet channel (5) and the water outlet channel (6) are respectively connected to the two ends of the cooling water channel (401).

2. The lead core box body injection mold according to claim 1, characterized in that: The fixed mold (1) and the movable mold (2) are connected via guide rods and guide sleeves. The fixed mold (1) comprises a fixed plate (101) and a diverter plate (102). A positioning ring is provided on the fixed plate (101) and a feed port is provided in the positioning ring. A diverter groove (102a) is provided on one side of the diverter plate (102) close to the fixed plate (101), and the diverter groove (102a) is connected to the end of the feed port. A plurality of diverter holes (102b) are provided on the diverter groove (102a), and the positions of the diverter holes (102b) correspond to the positions of the movable mold insert (4).

3. The lead core box body injection mold according to claim 2, characterized in that: A pulling needle (101a) is embedded between the fixed plate (101) and the diverter plate (102). There are multiple pulling needles (101a) and the positions of the pulling needles (101a) correspond to the diverter holes (102b). The ends of the pulling needles (101a) are spherical and extend into the diverter holes (102b).

4. The lead core box body injection mold according to claim 2, characterized in that: The diverter groove (102a) comprises a first groove arranged on the diverter plate (102) and a plurality of second grooves connected to the first groove, the second grooves being evenly arranged along the length direction of the first grooves, and the diverter holes (102b) being arranged on the second grooves.

5. The lead core box injection mold according to claim 2, characterized in that: A pair of guide rods (7) are embedded on the diverter plate (102) and the guide rods (7) are arranged obliquely outwards. A guide hole (301) corresponding to the guide rod (7) is arranged on the core (3). The core (3) comprises two movably connected left and right parts and a plurality of molding grooves (302) are arranged on one side of the left and right parts close to each other. The upper end of the molding groove (302) can be connected to the diverter hole (102b), and a molding cavity is formed between the molding groove (302) and the movable mold insert (4).

6. The lead core box body injection mold according to claim 2, characterized in that: The cross-sectional view of the core (3) is an isosceles trapezoid. The core (3) can be embedded in the fixing plate (101) and both sides of the fixing plate (101) are inclined surfaces that match the angle of the core (3).

7. The lead core box injection mold according to claim 1, characterized in that: The movable mold (2) comprises a mounting plate (201) and a bottom plate (202); the mounting plate (201) is provided with the core (3) in sliding connection; the bottom plate (202) is movably connected to the mounting plate (201) and the movable mold insert (4) is embedded in the bottom plate (202); and the bottom plate (202) is provided with the water inlet channel (5) and the water outlet channel (6).

8. The lead core box body injection mold according to claim 7, characterized in that: The cooling water channel (401) is U-shaped, the water inlet channel (5) and the water outlet channel (6) are respectively embedded on both sides of the bottom plate (202), and the water inlet channel (5) and the water outlet channel (6) are staggered, and the water inlet channel (5) and the water outlet channel (6) are respectively provided with a plurality of holes connected to the cooling water channel (401).

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