Injection mold for specification cover of safety seat

Abstract

The safety seat specification cover injection mold comprises an upper mold body and a lower mold body, the upper mold body comprises an upper fixing plate, a hot runner plate, a first top plate, a second top plate, two mold feet and a fixed mold plate, the first top plate and the second top plate are connected with each other, and the fixed mold plate is connected with a plurality of forming blocks used for forming assembly grooves in a sliding mode. A plurality of inclined ejection seats are arranged on the first ejection plate, inclined guide rods are arranged on the inclined ejection seats, the inclined guide rods penetrate through the second ejection plate, extend into the fixed mold plate and are connected with the forming block, and a driving part used for driving the first ejection plate to move is further arranged on the fixed mold plate; a plurality of forming rods are arranged on the hot runner plate, penetrate through the first top plate and the second top plate and extend into the fixed mold plate, forming cavities used for forming the assembly columns are formed between the forming rods and the fixed mold plate, and the forming blocks are located on the sides, away from the upper fixing plate, of the forming rods correspondingly. While the product is molded and demolded, the gram weight of the product is reduced, and the effect of saving materials is achieved.

Description

Technical Field

[0001] This utility model relates to the field of molds, and in particular to an injection mold for a child safety seat instruction manual cover. Background Technology

[0002] A child safety seat instruction manual cover Figure 1 and Figure 2 As shown, the device includes a cover body 8, which has multiple mating seats 81, each with an assembly groove 82. Each mating seat 81 has an assembly post 83, with an insertion hole 84 for inserting a bolt. The opening direction of the assembly groove 82 is opposite to the demolding direction of the cover body 8 on the mold. Therefore, after the cover body 8 is formed on the mold, it will form an undercut structure with the components on the mold used to form the cover body 8, affecting the demolding of the cover body 8. Utility Model Content

[0003] This application provides an injection mold for a child safety seat instruction manual cover, which satisfies the requirements of product molding and demolding while reducing the product's weight to achieve material saving.

[0004] The technical solution for the injection mold of a child safety seat instruction manual cover provided in this application is as follows:

[0005] A child safety seat instruction manual cover injection mold includes an upper mold body and a lower mold body. The upper mold body includes an upper fixed plate, a hot runner plate, a first top plate and a second top plate connected to each other, two mold feet, and a fixed template. Multiple molding blocks for forming assembly slots are slidably connected to the fixed template. The first top plate has multiple inclined top seats, each with an inclined guide rod. The inclined guide rod passes through the second top plate and extends into the fixed template, connecting to the molding blocks. The fixed template also has a driving part for driving the first top plate. The hot runner plate has multiple molding rods for forming insertion holes. These molding rods pass through the first and second top plates and extend into the fixed template, forming a molding cavity for forming assembly columns between the molding rods and the fixed template. The multiple molding blocks are located on the side of the multiple molding rods away from the upper fixed plate.

[0006] By adopting the above technical solution, when the mold opens, the drive unit drives the first and second top plates to move together towards the fixed template. During the movement of the first top plate, it pushes the molding block through the inclined top seat and inclined guide rod to push the cover out of the fixed template. At the same time, the molding block gradually moves out of the assembly groove, eliminating the need for the undercut structure of the assembly groove and the molding block. The arrangement of multiple molding blocks located on the side away from the upper fixed plate of multiple molding rods ensures that when the molding block pushes the cover out of the fixed template, it pulls the already formed assembly column out of the molding cavity, reducing the possibility of breakage when the assembly column detaches from the molding cavity.

[0007] Preferably, the driving part comprises a cylinder arranged on the fixed die plate, and a connecting column arranged on an output shaft of the cylinder, a clamping groove being arranged on a side wall of the connecting column, and the first top plate being clamped in the clamping groove.

[0008] By using the above technical scheme, when the output shaft of the cylinder is extended or retracted, the first top plate and the second top plate are driven to move together by the connecting column.

[0009] Preferably, the connecting column comprises a first column body connected with the output shaft of the cylinder, and a second column body connected with the first column body, the clamping groove being arranged on the second column body, and a threaded hole being arranged on a side of the first column body away from the cylinder, and the second column body being threadedly connected in the threaded hole.

[0010] By using the above technical scheme, the first column body and the second column body are convenient to connect and disassemble with the first top plate, and meanwhile, the first column body and the second column body can be adapted to top plates of various thicknesses and can be used on other molds.

[0011] Preferably, a positioning block is arranged on the second column body, and a positioning groove is arranged on a side of the first top plate away from the second top plate, and the positioning block is inserted and matched with the positioning groove.

[0012] By using the above technical scheme, when the mold is assembled, the first top plate and the second top plate are first lifted, the second column body is placed on the upper fixed plate, the positioning block is aligned with the positioning groove, then the first top plate and the second top plate are placed down so that the positioning block is inserted into the positioning groove, and meanwhile, the first top plate and the second top plate press against the second column body to limit and fix the second column body, then the first column body is threadedly connected to the second column body, so that the first column body and the second column body are convenient to connect and align.

[0013] Preferably, a U-shaped groove is arranged on the first top plate, a side wall of the U-shaped groove is matched with a side wall of the clamping groove, and when the mold is closed, the first top plate presses the second column body against the upper fixed plate.

[0014] By using the above technical scheme, the positioning and placement of the first column body are facilitated.

[0015] Preferably, an accommodating groove is arranged on the second top plate, a side wall of the first column body is matched with a side wall of the accommodating groove, and the first column body is completely located in the accommodating groove.

[0016] By using the above technical scheme, the first column body is protected to prevent the first column body from being collided during transportation and hoisting of the mold.

[0017] Preferably, a plurality of wire barrels are arranged on the second top plate, the plurality of wire barrels are respectively sleeved and slidably connected on a plurality of forming rods, the plurality of wire barrels all extend into the fixed die, and the forming cavity is enclosed by the forming rods, the wire barrels and the fixed die plate.

[0018] By adopting the technical scheme, the silk cylinder is driven to move into the fixed mold plate when the second top plate moves close to the fixed mold plate, and the assembly column is pushed out of the forming cavity when the silk cylinder moves into the fixed mold plate.

[0019] Preferably, the inner hole wall of the silk cylinder is provided with an exhaust groove, and the exhaust groove is communicated with the outside and the forming cavity when the mold is closed.

[0020] By adopting the technical scheme, the phenomenon that the assembly column is not completely formed due to the trapped gas in the forming cavity during mold injection molding is prevented.

[0021] The technical effects of the utility model mainly lie in the following aspects:

[0022] 1. The utility model satisfies product forming demolding, reduces the grammage of the product, and achieves the effect of saving material;

[0023] 2. The utility model sets the silk cylinder to demold the completed assembly column;

[0024] 3. The utility model sets the detachable structure of the connecting column to facilitate the connection and assembly of the connecting column and the first top plate. DRAWINGS

[0025] Figure 1 is a structural schematic view of the cover body.

[0026] Figure 2 is Figure 1 a partial enlarged view of A in the figure.

[0027] Figure 3 is a structural schematic view of the mold.

[0028] Figure 4 is a structural schematic view of the lower mold body.

[0029] Figure 5 is Figure 4 a partial structural sectional view of the lower mold body.

[0030] Figure 6 is Figure 3 a partial sectional view of the mold along B-B line.

[0031] Figure 7 is Figure 6 a partial enlarged view of C in the figure.

[0032] Figure 8 is Figure 3 a partial sectional view of the mold along D-D line.

[0033] Figure 9 is Figure 8 a partial enlarged view of E in the figure.

[0034] Fig. 1, upper mold body; 11, upper fixed plate; 12, hot runner plate; 13, first top plate; 131, positioning groove; 132, U-shaped groove; 14, second top plate; 141, accommodating groove; 15, mold foot; 16, fixed mold plate; 2, lower mold body; 21, lower fixed plate; 22, movable mold plate; 31, forming block; 32, inclined top seat; 33, inclined guide rod; 4, driving part; 41, oil cylinder; 42, connecting column; 421, first column body; 4211, threaded hole; 422, second column body; 4221, positioning block; 43, clamping groove; 5, forming cavity; 6, forming rod; 7, wire cylinder; 71, exhaust groove; 8, cover body; 81, matching seat; 82, assembly groove; 83, assembly column; 84, insertion hole. DETAILED DESCRIPTION

[0035] 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.

[0036] Referring to Figure 3 , the safety seat instruction manual cover 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, two mold feet 15 and a fixed mold plate 16 which are fixedly connected with each other. Meanwhile, the upper mold body 1 further comprises a first top plate 13 and a second top plate 14 which are fixedly connected with each other, the first top plate 13 is located between the two mold feet 15, and the first top plate 13 and the second top plate 14 are slidingly connected between the fixed mold plate 16 and the upper fixed plate 11 in the opening direction of the mold. The lower mold body 2 comprises a lower fixed plate 21 and a movable mold plate 22 which are fixedly connected.

[0037] Referring to Figures 3-5 , the fixed mold plate 16 is slidingly connected with a plurality of forming blocks 31 for forming the assembly groove 82. The first top plate 13 is provided with a plurality of inclined top seats 32, and the plurality of inclined top seats 32 are connected with inclined guide rods 33, and the ends of the inclined guide rods 33 away from the corresponding inclined top seats 32 pass through the second top plate 14 and extend into the fixed mold plate 16 and are connected with the forming blocks 31.

[0038] Referring to Figure 3 , Figure 6 and Figure 7 , the hot runner plate 12 is fixedly provided with a plurality of forming rods 6 for forming the insertion hole 84, the plurality of forming rods 6 pass through the first top plate 13 and the second top plate 14 and extend into the fixed mold plate 16, and the plurality of forming blocks 31 are located on the side of the plurality of forming rods 6 away from the upper fixed plate 11.

[0039] Referring to Figure 3 , Figure 6 and Figure 7A plurality of silk tubes 7 are fixed on the second top plate 14, the plurality of silk tubes 7 are sleeved on the plurality of forming rods 6 respectively, the plurality of silk tubes 7 are slidably connected on the plurality of first rod bodies respectively and in the opening direction of the mold, the plurality of silk tubes 7 all extend into the fixed mold plate, and the inner hole wall of the silk tube 7 is provided with an exhaust groove 71 which is communicated with the outside and the forming cavity 5 when the mold is closed. The forming rod 6, the silk tube 7 and the fixed mold plate 16 form the forming cavity 5 for forming the assembly column 83.

[0040] With reference to Figure 3 , Figure 8 and Figure 9 , the fixed mold plate 16 is further provided with two groups of driving parts 4 for driving the first top plate 13 to move, and the two groups of driving parts 4 are respectively located on the two sides of the fixed mold plate 16 and are all connected with the first top plate 13. The driving part 4 comprises an oil cylinder 41 fixed on the fixed mold plate 16 and a connecting column 42 fixed on the output shaft of the oil cylinder 41. The connecting column 42 comprises a first column body 421 connected with the output shaft of the oil cylinder 41 and a second column body 422 connected with the first column body 421. The second column body 422 is provided with an annular clamping groove 43. A threaded hole 4211 is formed in the side of the first column body 421 away from the oil cylinder 41, and the second column body 422 is threadedly connected in the threaded hole 4211.

[0041] With reference to Figure 3 , Figure 8 and Figure 9 , the first top plate 13 is provided with a U-shaped groove 132, one end of the clamping groove 43 of the second column body 422 extends into the U-shaped groove 132, the side wall of the U-shaped groove 132 is fitted with the side wall of the clamping groove 43, and the first top plate 13 presses the second column body 422 against the upper fixed plate 11 when the mold is closed. The second top plate 14 is provided with a containing groove 141, the side wall of the first column body 421 is fitted with the side wall of the containing groove 141, and the first column body 421 is completely located in the containing groove 141. The second column body 422 is provided with a positioning block 4221, and the side of the first top plate 13 away from the second top plate 14 is provided with a positioning groove 131, and the positioning block 4221 is insertedly matched with the positioning groove 131.

[0042] With reference to Figure 3 , Figure 8 and Figure 9 , when the mold is assembled, first, the first top plate 13 and the second top plate 14 are lifted, the second column body 422 is placed on the upper fixed plate 11, the positioning block 4221 is aligned with the positioning groove 131, then the first top plate 13 and the second top plate 14 are lowered, the positioning block 4221 is inserted into the positioning groove 131, at the same time, the first top plate 13 and the second top plate 14 press the second column body 422 to limit and fix the second column body 422, then the first column body 421 is threadedly connected to the second column body 422, which is convenient for the connection and alignment of the first column body 421 and the second column body 422.

[0043] With reference to Figures 3-9 When the cover 8 is injection molded, the mold is first closed to injection mold the cover 8. After the cover 8 is formed, the lower mold body 2 is moved away from the upper mold body 1 under the control of the injection molding machine. At this time, the cover 8 is retained on the fixed mold plate 16. Then the output shaft of the oil cylinder 41 is retracted and moves the first top plate 13 and the second top plate 14 to approach the fixed mold plate 16. In the process of the first top plate 13 moving to approach the fixed mold plate 16, the formed block 31 and the wire barrel 7 are pushed to move to eject the cover 8 from the fixed mold plate 16. In the process of the formed block 31 moving, the formed block 31 gradually moves out of the assembly groove 82, canceling the undercut structure of the assembly groove 82 and the formed block 31, and completing the demolding of the cover 8.

[0044] 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 replacement or equivalent transformation fall within the scope of the present application.

Claims

1. A safety seat instruction cover injection mold, comprising 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), a first top plate (13) and a second top plate (14) connected with each other, two mold feet (15) and a fixed plate (16), characterized in that: The fixed mold plate (16) is slidably connected with a plurality of forming blocks (31) for forming assembly grooves (82), the first top plate (13) is provided with a plurality of inclined top seats (32), each of the plurality of inclined top seats (32) is provided with an inclined guide rod (33), the inclined guide rod (33) penetrates through the second top plate (14) and extends into the fixed mold plate (16) and is connected with the forming block (31), and the fixed mold plate (16) is further provided with a driving part (4) for driving the first top plate (13) to move; the hot runner plate (12) is provided with a plurality of forming rods (6) for forming jacks (84), the plurality of forming rods (6) penetrate through the first top plate (13) and the second top plate (14) and extend into the fixed mold plate (16), and the forming rod (6) and the fixed mold plate (16) form a forming cavity (5) for forming an assembly column (83), and the plurality of forming blocks (31) are respectively located on the side of the plurality of forming rods (6) away from the upper fixed plate (11).

2. A safety seat instruction cover injection mold according to claim 1, characterized in that: The driving part (4) comprises a oil cylinder (41) arranged on the fixed mold plate (16) and a connecting column (42) arranged on the output shaft of the oil cylinder (41), and a clamping groove (43) is arranged on the side wall of the connecting column (42), and the first top plate (13) is clamped in the clamping groove (43).

3. A safety seat instruction cover injection mold according to claim 2, wherein: The connecting column (42) comprises a first column body (421) connected with the output shaft of the oil cylinder (41) and a second column body (422) connected with the first column body (421), the clamping groove (43) is arranged on the second column body (422), and a threaded hole (4211) is arranged on one side of the first column body (421) away from the oil cylinder (41).

4. The safety seat instruction cover injection mold of claim 3, wherein: The second column body (422) is provided with a positioning block (4221), and the first top plate (13) is provided with a positioning groove (131) on the side away from the second top plate (14), and the positioning block (4221) is inserted and matched with the positioning groove (131).

5. The safety seat instruction cover injection mold of claim 3, wherein The first top plate (13) is provided with a U-shaped groove (132), the side wall of the U-shaped groove (132) is matched with the side wall of the clamping groove (43), and when the mold is closed, the second column body (422) is pressed against the upper fixed plate (11) by the first top plate (13).

6. A safety seat instruction cover injection mold according to claim 3, wherein The second top plate (14) is provided with a containing groove (141), the side wall of the first column body (421) is matched with the side wall of the containing groove (141), and the first column body (421) is completely located in the containing groove (141).

7. The safety seat instruction cover injection mold of claim 1, wherein: The second top plate (14) is provided with a plurality of wire barrels (7), the plurality of wire barrels (7) are respectively sleeved and slidably connected on the plurality of forming rods (6), and the plurality of wire barrels (7) extend into the fixed mold, and the forming cavity (5) is formed by the forming rod (6), the wire barrel (7) and the fixed mold plate (16).

8. A safety seat instruction cover injection mold according to claim 7, wherein: An exhaust groove (71) is arranged on the inner hole wall of the wire barrel (7), and the exhaust groove (71) is communicated with the outside and the forming cavity (5) when the mold is closed.

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