Inverted sliding block synchronous ejection injection mold

Abstract

The utility model relates to an upside-down slider synchronous ejection injection mold, which comprises an upper mold body and a lower mold body, the upper mold body comprises an upper fixing plate and a fixed mold plate, the fixed mold plate is provided with a cavity, the lower mold body comprises a lower fixing plate, two mold feet, an ejection plate and a movable mold plate, the movable mold plate is provided with a mold core, and the mold core is provided with a cavity. An inclined ejector block for forming an assembly part is connected in the mold core in a sliding manner, a first inclined ejector seat is arranged on the ejector plate, a first inclined ejector rod is arranged on the first inclined ejector seat, and the top end of the first inclined ejector rod extends into the movable mold plate and is connected with the inclined ejector block. When the mold is opened, the cover body is left on the cavity, so that fonts are prevented from being strained and deformed.

Description

TECHNICAL FIELD

[0001] The utility model relates to a mould field, in particular to a kind of inverted slide block synchronous ejection injection mold. BACKGROUND

[0002] A kind of storage box cover as Figure 1 And Figure 2 As shown, including cover 8, the back of cover 8 is equipped with reinforcing portion 81 and assembly portion 82, reinforcing portion 81 is composed of longitudinal and transverse interlaced reinforcing rib.Cover 8 is equipped with font 83 on surface, and two installation columns 84 are equipped on the sidewall of both sides of cover 8.

[0003] Font 83 has certain inclination angle, so font 83 will form reverse buckling structure with mould cavity 14 after cover 8 is formed using mould.If cover 8 moves away from mould cavity 14 following mould core 25 when mould is opened, font 83 is easy to be pulled and hurt because of reverse buckling structure, so cover 8 needs to be left on mould cavity 14 when mould is opened, and then cover 8 on mould cavity 14 is manually taken away. SUMMARY

[0004] The application provides a kind of inverted slide block synchronous ejection injection mold, cover is left on mould cavity when mould is opened, and prevents font from being pulled and deformed.

[0005] The application provides a kind of inverted slide block synchronous ejection injection mold using the following technical scheme:

[0006] A kind of inverted slide block synchronous ejection injection mold, including upper die body and lower die body, the upper die body includes upper fixed plate, fixed plate, the fixed plate is equipped with mould cavity, the lower die body includes lower fixed plate, two blocks of die feet, top plate and movable plate, the movable plate is equipped with core, the core is slidably connected with the inclined ejector block for forming assembly portion, the top plate is equipped with first inclined ejector seat, the first inclined ejector seat is equipped with first inclined ejector rod, and the top end of the first inclined ejector rod extends into movable plate and is connected with inclined ejector block.

[0007] By using the above technical scheme, the injection molding machine controls lower die body to move away from upper die body when mould is opened, and controls top plate to move towards movable plate, so that inclined ejector block presses cover in mould cavity, and the separation of cover and core is completed at the same time, and the reverse buckling structure of inclined ejector block and assembly portion is also eliminated, so that subsequent inclined ejector block will not pull cover out of mould cavity when moving away from upper die body together with lower die body.

[0008] Preferably, two forming blocks for forming the mounting columns are slidably connected to the fixed mold plate, two inclined rods are arranged on the movable mold plate, and inclined holes are arranged on the two forming blocks for the insertion of the inclined rods; when the mold is closed, the two inclined rods are inserted into the two inclined holes to drive the two forming blocks to move towards each other; when the mold is opened, the two inclined rods move out of the two inclined holes to drive the two forming blocks to move away from each other.

[0009] By adopting the above technical scheme, the two mounting columns will form an undercut structure with the two forming blocks at the initial stage of mold opening to hinder the cover from separating from the cavity, so that the cover will remain on the cavity when the mold is opened. Subsequently, after the movable mold plate moves away from the fixed mold plate by a certain distance, the two forming blocks will also move away from the two mounting columns, facilitating the subsequent manual removal of the cover adhered to the cavity.

[0010] Preferably, a first injection flow channel is arranged on the movable mold plate, a shear block is slidably connected to the fixed mold plate, a second injection flow channel is arranged on the shear block, the second injection flow channel is in communication with the first injection flow channel and the core, and a control assembly for controlling the sliding of the shear block is arranged on the lower mold body.

[0011] By adopting the above technical scheme, the control assembly controls the shear block to slide away from the fixed mold plate when the mold is opened, and the shear block will cut off the injection waste material located between the first injection flow channel and the second injection flow channel when it slides, so that the injection waste material will not pull the cover away from the cavity when the mold is opened.

[0012] Preferably, the control assembly includes a second inclined ejector seat arranged on the top plate and a second inclined ejector rod arranged on the second inclined ejector seat, and the top of the second inclined ejector rod extends into the movable mold plate and is connected with the shear block.

[0013] By adopting the above technical scheme, when the top plate moves towards the movable mold plate, the second inclined ejector rod will drive the shear block to move away from the movable mold plate.

[0014] Preferably, the second injection flow channel is a horn flow channel, and the flow channel opening through which the second injection flow channel communicates with the first injection flow channel is larger than the flow channel opening through which the second injection flow channel communicates with the core.

[0015] By adopting the above technical scheme, after the shear block no longer moves away from the movable mold plate, the shear block will move away from the cover together with the lower mold body. The second injection flow channel being a horn flow channel will make the injection waste material located in the second injection flow channel easy to break and separate from the connection part of the cover when the shear block moves away from the cover, preventing the shear block from pulling the cover away from the cavity.

[0016] Preferably, a large top block for forming the reinforcing part is slidably connected to the core, two third inclined ejector seats are arranged on the top plate, a third ejector rod is arranged on each of the two second inclined ejector seats, and the two third ejector rods extend into the movable mold plate and are connected with the large top block.

[0017] By adopting the technical scheme, the large ejector pin pushes the cover out of the core and presses the cover on the cavity when the mold is opened.

[0018] Preferably, the large ejector pin is provided with a first cooling water channel, and the two third ejector pins are each provided with a second cooling water channel, and the two second cooling water channels are in communication with the first cooling water channel.

[0019] By adopting the technical scheme, the cooling speed of the cover is improved, and the forming time of the cover is shortened.

[0020] The technical effects of the utility model mainly lie in the following aspects:

[0021] 1. The utility model leaves the cover on the cavity when the mold is opened, preventing the font from being damaged and deformed;

[0022] 2. The utility model automatically separates the cover from the injection waste, achieving the effect of automatic gate shearing;

[0023] 3. The utility model sets the large ejector pin and the corresponding structure to assist the demolding of the cover and shorten the production cycle of the cover. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 is the structure schematic view of the front face of the storage box cover.

[0025] Figure 2 is the structure schematic view of the back face of the storage box cover.

[0026] Figure 3 is the structure schematic view of the mold.

[0027] Figure 4 is the structure schematic view of the upper mold body.

[0028] Figure 5 is the structure schematic view of the lower mold body.

[0029] Figure 6 is Figure 3 the sectional view of the mold along A-A line.

[0030] Figure 7 is Figure 6 the local enlarged view of B.

[0031] Figure 8 is Figure 5 the sectional view of the lower mold body along C-C line.

[0032] Figure 9 is Figure 5 the local sectional view of the lower mold body.

[0033] Figure 10Is the big top block, third inclined top seat, third top rod structure diagram.

[0034] Figure 11 Is Figure 10 The middle part along the line D-D section view.

[0035] Figure 12 Is Figure 5 The middle lower mold body along the line E-E section view.

[0036] Figure 13 Is Figure 5 The middle F at the local enlarged view.

[0037] Figure: 1, the upper mold body; 11, the upper fixed plate; 12, hot runner plate; 13, the fixed die plate; 14, cavity; 2, the lower mold body; 21, the lower fixed plate; 22, the mold foot; 23, the top plate; 24, the movable die plate; 25, the core; 31, inclined top block; 32, the first inclined top seat; 33, the first inclined top rod; 41, forming block; 42, inclined rod; 43, inclined hole; 51, the first injection flow channel; 52, shear block; 53, the second injection flow channel; 6, control assembly; 61, the second inclined top seat; 62, the second inclined top rod; 71, large top block; 72, third inclined top seat; 73, third top rod; 74, first cooling waterway; 75, second cooling waterway; 8, cover; 81, reinforcement; 82, assembly part; 83, font; 84, mounting column. DETAILED DESCRIPTION

[0038] The application will be further described in detail below with reference to the accompanying drawings, so that the technical scheme of the application is easier to understand and master.

[0039] Referring to Figure 3 , the inverted slider synchronous ejection injection mold of the embodiment comprises an upper mold body 1 and a lower mold body 2. The upper mold body 1 comprises an upper fixed plate 11, a hot runner plate 12 and a fixed die plate 13 which are fixedly connected with each other, wherein the fixed die plate 13 is provided with a cavity 14. The lower mold body 2 comprises a lower fixed plate 21, two mold feet 22, a top plate 23 and a movable die plate 24, wherein the movable die plate 24 is provided with a core 25. The lower fixed plate 21, the two mold feet 22 and the movable die plate 24 are fixedly connected with each other, and the top plate 23 is slidably connected between the two mold feet 22 along the opening direction of the mold, and the top plate 23 is located between the lower fixed plate 21 and the movable die plate 24.

[0040] Referring to Figures 3-7Two forming blocks 41 for forming the mounting column 84 are slidably connected on the fixed mold plate 13 along the direction perpendicular to the opening direction of the mold. Two inclined rods 42 are fixed on the movable mold plate 24, and two inclined holes 43 are formed on the two forming blocks 41 for the insertion of the inclined rods 42; when the mold is closed, the two inclined rods 42 are inserted into the two inclined holes 43 to drive the two forming blocks 41 to move towards each other; when the mold is opened, the two inclined rods 42 move out of the two inclined holes 43 to drive the two forming blocks 41 to move away from each other.

[0041] With reference to Figure 5 and Figure 8 , the inclined top block 31 for forming the assembly part 82 is slidably connected in the core 25. A first inclined top seat 32 is installed on the top plate 23, and a first inclined top rod 33 is arranged on the first inclined top seat 32, and the top end of the first inclined top rod 33 extends into the movable mold plate 24 and is connected with the inclined top block 31.

[0042] With reference to Figure 5 , Figures 9-11 , the large top block 71 for forming the reinforcing part 81 is slidably connected in the core 25. Two third inclined top seats 72 are also installed on the top plate 23, and a third top rod 73 is arranged on each of the two second inclined top seats 61, and the two third top rods 73 extend into the movable mold plate 24 and are connected with the large top block 71. The first cooling water channel 74 is arranged on the large top block 71, and the second cooling water channel 75 is arranged on each of the two third top rods 73, and the two second cooling water channels 75 are in communication with the first cooling water channel 74.

[0043] With reference to Figure 5 , Figure 12 , Figure 13 , the first injection flow channel 51 is formed on the movable mold plate 24, the shear block 52 is slidably connected on the fixed mold plate 13, the second injection flow channel 53 is arranged on the shear block 52, and the second injection flow channel 53 is in communication with the first injection flow channel 51 and the core 25. The second injection flow channel 53 is a horn flow channel, and the flow channel opening where the second injection flow channel 53 communicates with the first injection flow channel 51 is larger than the flow channel opening where the second injection flow channel 53 communicates with the core 25.

[0044] With reference to Figure 12 , the control assembly 6 for controlling the sliding of the shear block 52 is arranged on the lower mold body 2. The control assembly 6 includes the second inclined top seat 61 fixed on the top plate 23 and the second inclined top rod 62 arranged on the second inclined top seat 61, and the top part of the second inclined top rod 62 extends into the movable mold plate 24 and is connected with the shear block 52.

[0045] With reference to Figures 3-13 , the specific production steps of the cover 8 of the present application are as follows:

[0046] Firstly, the two inclined rods 42 are inserted into the two inclined holes 43 to drive the two forming blocks 41 to move close to each other and to the predetermined position. Then the injection molding machine starts to inject hot melt plastic into the mold. The hot melt plastic flows into the space between the core 25 and the cavity 14 through the first injection runner 51 and the second injection runner 53, thereby completing the injection molding of the cover 8.

[0047] After the cover 8 is injection molded, the injection molding machine controls the mold to open, allowing the lower mold body 2 to move away from the upper mold body 1, while the injection molding machine controls the top plate 23 to move close to the movable mold plate 24. When the top plate 23 moves close to the movable mold plate 24, the first inclined top seat 32, the second inclined top seat 61, the two third inclined top seats 72, the first top rod, the second top rod, and the two third top rods 73 move away from the lower fixed plate 21.

[0048] When the first top rod, the second top rod, and the two third top rods 73 move away from the lower fixed plate 21, the inclined top block 31, the shearing block 52, and the large top block 71 are driven to move away from the core 25, thereby ejecting the cover 8 from the core 25 and pressing it against the cavity 14, preventing the cover 8 from moving with the lower mold body 2. When the mold is opened, the two inclined rods 42 also drive the two forming blocks 41 to slide away from the two mounting columns 84 that have been formed.

[0049] After the inclined top block 31, the shearing block 52, and the large top block 71 move a certain distance, they move away from the cover 8 along with the lower mold body 2, thereby leaving the cover 8 on the cavity 14. After the mold is completely opened, the injection molding personnel enters the injection molding machine to shake the cover 8, thereby removing the cover 8 from the cavity 14. Then the injection molding personnel controls the injection molding machine to move the top plate 23 back to its original position, allowing the components on the lower mold body 2 to move back to their original positions. Then the injection molding machine controls the lower mold body 2 to move towards the upper mold body 1, finally allowing the mold to close and start the injection molding of the next cover 8.

[0050] Of course, the above is only a typical example of the present application, and in addition to this, the present application can have other various specific embodiments, and any technical solutions formed by equivalent substitution or equivalent transformation shall fall within the scope of the present application.

Claims

1. A reverse-mounted slider synchronous ejection injection mold, comprising an upper mold body (1) and a lower mold body (2), wherein the upper mold body (1) comprises an upper fixed plate (11), a hot runner plate (12), and a fixed template (13), wherein the fixed template (13) has a cavity (14), and the lower mold body (2) comprises a lower fixed plate (21), two mold feet (22), a top plate (23), and a movable template (24), wherein the movable template (24) has a core (25), characterized in that: The core (25) is slidably connected with an inclined ejector block (31) for forming an assembling part (82), the top plate (23) is provided with a first inclined ejector seat (32), the first inclined ejector seat (32) is provided with a first inclined ejector rod (33), and the top end of the first inclined ejector rod (33) extends into the movable die plate (24) and is connected with the inclined ejector block (31).

2. A flipper slide synchronized ejection injection mold according to claim 1, characterized in that: The fixed die plate (13) is slidably connected with two forming blocks (41) for forming mounting columns (84), the movable die plate (24) is provided with two inclined rods (42), and the two forming blocks (41) are both provided with inclined holes (43) for inserting the inclined rods (42); when the mold is closed, the two inclined rods (42) are inserted into the two inclined holes (43) to drive the two forming blocks (41) to move close to each other; when the mold is opened, the two inclined rods (42) move away from the two inclined holes (43) to drive the two forming blocks (41) to move away from each other.

3. The inverted slide-synchronized ejection injection mold according to claim 1, wherein: The movable die plate (24) is provided with a first injection flow channel (51), the fixed die plate (13) is slidably connected with a shearing block (52), the shearing block (52) is provided with a second injection flow channel (53), the second injection flow channel (53) is connected with the first injection flow channel (51) and the core (25), and the lower mold body (2) is provided with a control assembly (6) for controlling the sliding of the shearing block (52).

4. A flipper slide synchronized ejection injection mold according to claim 3, wherein: The control assembly (6) comprises a second inclined ejector seat (61) arranged on the top plate (23) and a second inclined ejector rod (62) arranged on the second inclined ejector seat (61), and the top of the second inclined ejector rod (62) extends into the movable die plate (24) and is connected with the shearing block (52).

5. A flipper slide synchronized ejection injection mold according to claim 3, wherein: The second injection flow channel (53) is a horn flow channel, and the flow channel opening for connecting the second injection flow channel (53) with the first injection flow channel (51) is larger than the flow channel opening for connecting the second injection flow channel (53) with the core (25).

6. A flipper slide synchronized ejection injection mold according to claim 1, wherein: The core (25) is slidably connected with a large ejector block (71) for forming a reinforcing part (81), the top plate (23) is provided with two third inclined ejector seats (72), the two second inclined ejector seats (61) are both provided with third ejector rods (73), and the two third ejector rods (73) both extend into the movable die plate (24) and are connected with the large ejector block (71).

7. A flipper slide synchronized ejection injection mold according to claim 6, wherein: The large ejector block (71) is provided with a first cooling water channel (74), the two third ejector rods (73) are both provided with second cooling water channels (75), and the two second cooling water channels (75) are both connected with the first cooling water channel (74).

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