Large-fitting-degree ejection injection mold for control box body

Abstract

The utility model relates to a control box body large-fitting-degree ejection injection mold which comprises a front mold and a rear mold, the front mold and the rear mold jointly form a forming cavity used for forming a control box body after being closed, the injection mold further comprises a core pulling mechanism and an ejection mechanism, and the ejection mechanism comprises a driving assembly and a plurality of ejection blocks; the multiple ejection blocks slide on the front mold in the mold opening and closing direction, and the driving assembly is used for driving the multiple ejection blocks to move synchronously; the top block used for abutting against the large-angle inclined face of the control box body is the first top block. The end face of the first block is used for forming the local inner bottom face of the control box body, and one side face of the first block is used for forming the local large-angle inclined face of the control box body. By increasing the effective attaching area of the first support and the large-angle inclined face, the possibility that the ejector block slips is reduced, meanwhile, ejector pin marks are avoided, the appearance quality of a product after demolding can be improved, and better demolding of the product is facilitated.

Description

Technical Field

[0001] The utility model relates to the field of molds, in particular to a high-fit ejection injection mold for a control box body. Background Art

[0002] A mold is a tool used to make molded objects. It mainly realizes the processing of the object's shape by changing the physical state of the molded material.

[0003] Control box body Figure 1 As shown, in the existing mold production, multiple ejectors are used to eject the molded control box body 1 to achieve product demoulding.

[0004] However, since the angle of the inclined surface of the local inner wall of the control box body 1 is relatively large and there are multiple reinforcing ribs 11 on the inclined surface, the head of the ejector pin is prone to slide when the ejector pin lifts up this part of the inclined surface, which is easy to leave scratches on the product surface and ejector pin marks, affecting the appearance quality of the product. Utility Model Content

[0005] In order to improve the appearance quality of the product after demolding and help the product to be better demolded, the present application provides a control box body high-fit ejection injection mold.

[0006] The present application provides a control box body high-fit ejection injection mold that adopts the following technical solution:

[0007] A control box body high-fit ejection injection mold, comprising a front mold and a rear mold, wherein the front mold and the rear mold together form a molding cavity for molding the control box body, and further comprising a core pulling mechanism and an ejection mechanism, wherein the ejection mechanism comprises a driving assembly and a plurality of ejector blocks, wherein the plurality of ejector blocks slide on the front mold along the mold opening and closing direction, and the driving assembly is used to drive the plurality of ejector blocks to move synchronously; the ejector block used to abut against the large-angle inclined surface of the control box body among the plurality of ejector blocks is the first block; the end surface of the first block is used to mold the local inner bottom surface of the control box body, and one side surface of the first block is used to mold the local large-angle inclined surface of the control box body.

[0008] By adopting the above technical solution, the effective fitting area between the first bracket and the large-angle inclined surface is increased, thereby reducing the possibility of the ejector block slipping and avoiding leaving ejector pin marks, thereby improving the appearance quality of the product after demoulding and helping the product to be better demoulded.

[0009] Preferably, the first block is located between two adjacent reinforcing ribs on the large-angle inclined surface of the control box body.

[0010] By adopting the above technical solution, force can be applied to the control box body more effectively.

[0011] Preferably, a gap is left between the first block and the reinforcing rib.

[0012] By adopting the above technical solution, if the first block is used directly to form reinforcing ribs, the product will shrink when it is cooled after demolding, and the reinforcing ribs will wrap around the top block, making it difficult to remove the product. Leaving a gap between the first block and the reinforcing ribs can better avoid this problem and facilitate the operator to remove the product.

[0013] Preferably, the first block is provided with a chamfered arc surface for forming the rounded corners of the edge of the control box body.

[0014] Preferably, the driving assembly includes a cylinder, a first top plate, a second top plate and a plurality of connecting rods, the plurality of connecting rods respectively corresponding to a plurality of top blocks, the first top plate is located on a side of the second top plate close to the front mold and is removable on the second top plate, the cylinder is arranged on the front mold, the piston rod of the cylinder is removable on the second top plate, and the two ends of the connecting rod are respectively arranged on the first top plate and the corresponding top block.

[0015] By adopting the above technical solution, the piston rod of the driving cylinder is extended and retracted, so as to drive the second ejector plate and the first ejector plate to move back and forth. The first ejector plate drives the ejector block to reset or eject the formed control box body through the ejector pin.

[0016] Preferably, an arched groove is provided on the outer wall of one end of the connecting rod close to the top block, and a mounting groove matching the corresponding end of the connecting rod is provided on the side surface of the top block close to the first top plate, and the top block and the connecting rod are fixed together by bolts; a positioning block is provided at the bottom end of the connecting rod, and a plurality of positioning grooves matching the bottom end of the connecting rod and the positioning block are penetrated on the first top plate, and the second top plate is used to press against the positioning block.

[0017] By adopting the above technical solution, the connecting rod is installed in the following way: the top end of the connecting rod first passes through the positioning groove of the first top plate, and then after the top end of the connecting rod is inserted into the mounting groove of the corresponding top block, the connecting rod cannot rotate in the mounting groove, which makes it more convenient to bolt and lock the connecting rod. At the same time, the bottom end of the connecting rod is also located in the corresponding positioning groove, and then all the connecting rods pass through the positioning groove, and after the bottom end of the connecting rod is matched with the corresponding positioning groove, the second top plate is installed on the first top plate, so that the second top plate can resist the positioning block, and the positioning groove and the second connecting rod jointly limit the movement of the connecting rod, and the bottom end of the connecting rod does not need to be locked on the first top plate one by one by bolts, which can save the assembly time of the mold.

[0018] Preferably, the core pulling mechanism includes a core pulling seat, a core pulling block and a core pulling rod. The core pulling seat slides on the front mold along the core pulling direction perpendicular to the opening and closing molds. The core pulling rod is arranged at an angle. One end of the core pulling rod is fixed on the rear mold, and the other end of the core pulling rod slides on the core pulling seat along the inclined direction. The core pulling block is fixed on the core pulling seat and slides with the core pulling seat. The core pulling block is used to form the control box body.

[0019] By adopting the above technical solution, the movement of the front mold can drive the core pulling column to move, and the core pulling column drives the core pulling seat and the core pulling block to move along the core pulling direction, thereby switching back and forth between the reset state and the core pulling state.

[0020] The technical effects of this utility model are mainly reflected in the following aspects:

[0021] 1. The utility model increases the effective fitting area between the first bracket and the large-angle bevel, thereby reducing the possibility of the ejector block slipping and avoiding ejector pin marks, thereby improving the appearance quality of the product after demoulding and helping the product to be demoulded better;

[0022] 2. The utility model provides a gap between the first block and the reinforcing ribs. If the first block is used directly to form the reinforcing ribs, the product will shrink when it is cooled after demoulding, and the reinforcing ribs will wrap around the top block, making it difficult to remove the product. The gap between the first block and the reinforcing ribs can better avoid this problem and facilitate the operator to remove the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural diagram of the control box body.

[0024] Figure 2 It is a schematic diagram of the overall structure of the mold of the embodiment of the present application.

[0025] Figure 3 It is a structural schematic diagram of the core pulling mechanism of an embodiment of the present application.

[0026] Figure 4 It is a schematic diagram of the coordination between the first block of the embodiment of the present application and the control box body.

[0027] Figure 5 yes Figure 4 Enlarged view of point A in the middle.

[0028] Figure 6 It is a structural schematic diagram of the ejection mechanism of an embodiment of the present application.

[0029] Figure 7 It is an assembly cross-sectional view of the connecting rod, the first top plate and the second top plate.

[0030] Explanation of the reference numerals: 1. control box body; 11. reinforcing ribs; 2. front mold; 3. rear mold; 4. core pulling mechanism; 41. core pulling seat; 42. core pulling block; 43. core pulling rod; 5. ejector mechanism; 51. ejector block; 511. first block; 512. mounting groove; 513. chamfered arc surface; 6. drive assembly; 61. first ejector plate; 611. positioning groove; 62. second ejector plate; 621. I-shaped groove; 63. connecting rod; 631. positioning block; 64. oil cylinder; 641. connecting block. DETAILED DESCRIPTION

[0031] The following is combined with Figure 1-7 The present application is further described in detail to make the technical solution of the present application easier to understand and grasp.

[0032] The embodiment of the present application discloses a high-fit ejection injection mold for a control box body.

[0033] Reference Figure 2-Figure 6 In this embodiment, a high-fit ejection injection mold for a control box body 1 includes a front mold 2 and a rear mold 3. After the front mold 2 and the rear mold 3 are molded together, a molding cavity for molding the control box body 1 is formed. The mold also includes a core pulling mechanism 4 and an ejection mechanism 5. The ejection mechanism 5 includes a driving assembly 6 and a plurality of ejector blocks 51. The plurality of ejector blocks 51 slide on the front mold 2 along the mold opening and closing direction. The driving assembly 6 is used to drive the plurality of ejector blocks 51 to move synchronously. Among the plurality of ejector blocks 51, the ejector block 51 used to abut against the large-angle inclined surface of the control box body 1 is the first block 511. The end surface of the first block 511 is used to mold the local inner bottom surface of the control box body 1, and one side surface of the first block 511 is used to mold the local large-angle inclined surface of the control box body 1.

[0034] Reference Figure 4 and Figure 5 By increasing the effective fitting area between the first block 511 bracket and the large-angle slope, the possibility of the top block 51 slipping is reduced, and at the same time, ejector marks are avoided, which can improve the appearance quality of the product after demolding and help the product to be better demolded.

[0035] Reference Figure 4 and Figure 5 The first block 511 is located between two adjacent reinforcing ribs 11 on the large-angle slope of the control box body 1. This can more effectively apply force to the control box body 1.

[0036] Reference Figure 4 and Figure 5 , there is a gap between the first block 511 and the reinforcing rib 11. If the first block 511 is used directly to form the reinforcing rib 11, the reinforcing rib 11 will wrap around the top block 51 due to the product shrinking when it is cooled after demoulding, making it difficult to remove the product. Leaving a gap between the first block 511 and the reinforcing rib 11 can better avoid this problem and facilitate the operator to remove the product.

[0037] Reference Figure 4 and Figure 5 The first block 511 is provided with a chamfered arc surface 513 for forming the rounded corners of the edge of the control box body 1 .

[0038] Reference Figure 6 and Figure 7 The driving assembly 6 includes a first top plate 61, a second top plate 62, multiple connecting rods 63 and four oil cylinders 64. The multiple connecting rods 63 correspond to multiple top blocks 51 respectively. The first top plate 61 is located on the side of the second top plate 62 close to the front mold 2 and can be removed from the second top plate 62. The four oil cylinders 64 are fixed and distributed on both sides of the front mold 2, with two oil cylinders 64 on each side. The piston rod of the oil cylinder 64 is parallel to the opening and closing direction of the mold and can be removed from the second top plate 62. The two ends of the connecting rod 63 are respectively arranged on the first top plate 61 and the corresponding top block 51.

[0039] Reference Figure 3 and Figure 6 The piston rod end of the oil cylinder 64 is fixed with an I-shaped connecting block 641 by bolts, and an I-shaped groove 621 matching the connecting block 641 is opened on the side wall of the second top plate 62. The connecting block 641 is located in the I-shaped groove 621. By driving the piston rod of the oil cylinder 64 to extend and retract, the second top plate 62 and the first top plate 61 can be driven to move back and forth. The first top plate 61 drives the ejector block 51 to reset or eject the formed control box body 1 through the ejector pin.

[0040] Reference Figure 6 and Figure 7 The connecting rod 63 is cylindrical, and an arched groove is provided on the outer wall of one end of the connecting rod 63 close to the top block 51. The end of the connecting rod 63 close to the top block 51 can be regarded as an arch greater than 180°. A mounting groove 512 matching the corresponding end of the connecting rod 63 is provided on the side surface of the top block 51 close to the first top plate 61. The top block 51 and the connecting rod 63 are fixed together by bolts. A positioning block 631 is coaxially fixed to the bottom end of the connecting rod 63. The cross-sectional area of ​​the positioning block 631 is larger than the cross-sectional area of ​​the connecting rod 63. A plurality of positioning grooves 611 matching the bottom end of the connecting rod 63 and the positioning block 631 are provided on the first top plate 61. The second top plate 62 is used to press against the positioning block 631. The first top plate 61 and the second top plate 62 are fixedly connected by bolts.

[0041] Reference Figure 6 and Figure 7The installation method of the connecting rod 63 is that the top end of the connecting rod 63 first passes through the positioning groove 611 of the first top plate 61, and then after the top end of the connecting rod 63 is inserted into the installation groove 512 of the corresponding top block 51, the connecting rod 63 cannot rotate in the installation groove 512, which can make it easier to bolt the connecting rod 63 and the connecting rod 63. At the same time, the bottom end of the connecting rod 63 is also located in the corresponding positioning groove 611. Then all the connecting rods 63 pass through the positioning groove 611, and after the bottom end of the connecting rod 63 and the positioning block 631 cooperate with the corresponding positioning groove 611, the second top plate 62 is installed on the first top plate 61, so that the second top plate 62 can resist the positioning block 631, and the positioning groove 611 and the second connecting rod 63 jointly limit the movement of the connecting rod 63, and the bottom end of the connecting rod 63 does not need to be locked on the first top plate 61 one by one by bolts, which can save the assembly time of the mold.

[0042] Reference Figure 2 and Figure 3 The core pulling mechanism 4 includes a core pulling seat 41, a core pulling block 42 and a core pulling rod 43. The core pulling seat 41 slides on the front mold 2 along the core pulling direction perpendicular to the opening and closing mold. The core pulling rod 43 is arranged at an angle. One end of the core pulling rod 43 is fixed on the rear mold 3, and the other end of the core pulling rod 43 slides on the core pulling seat 41 along the inclined direction. The core pulling block 42 is fixed on the core pulling seat 41 and slides with the core pulling seat 41. The core pulling block 42 is used to form the control box body 1.

[0043] Reference Figure 2 and Figure 3 The movement of the front mold 2 can drive the core pulling column to move, and the core pulling column drives the core pulling seat 41 and the core pulling block 42 to move along the core pulling direction, thereby switching back and forth between the reset state and the core pulling state.

[0044] Of course, the above are only typical examples of the present application. In addition, the present application may have many other specific implementation methods. All technical solutions formed by equivalent replacement or equivalent transformation fall within the scope of protection required by the present application.

Claims

1. A control box body (1) high-fit ejection injection mold, comprising a front mold (2) and a rear mold (3), wherein the front mold (2) and the rear mold (3) together form a molding cavity for molding the control box body (1), characterized in that: The invention also comprises an ejection mechanism (5) and a plurality of core pulling mechanisms (4), wherein the ejection mechanism (5) comprises a driving assembly (6) and a plurality of ejection blocks (51), wherein the plurality of ejection blocks (51) slide on the front mold (2) along the mold opening and closing direction, and the driving assembly (6) is used to drive the plurality of ejection blocks (51) to move synchronously; the ejection block (51) used to abut against the large-angle inclined surface of the control box body (1) among the plurality of ejection blocks (51) is the first block (511); the end surface of the first block (511) is used to form a local inner bottom surface of the control box body (1), and one side surface of the first block (511) is used to form a local large-angle inclined surface of the control box body (1).

2. A control box body (1) high fit ejection injection mold according to claim 1, characterized in that: The first block (511) is located between two adjacent reinforcing ribs (11) on the large-angle inclined surface of the control box body (1).

3. A control box body (1) high fit ejection injection mold according to claim 2, characterized in that: A gap is left between the first block (511) and the reinforcing rib (11).

4. A control box body (1) high fit ejection injection mold according to claim 1, characterized in that: The first block (511) is provided with a chamfered arc surface (513) for forming the rounded corners of the edge of the control box body (1).

5. The control box body (1) high-fit ejection injection mold according to claim 1, characterized in that: The driving assembly (6) comprises an oil cylinder (64), a first top plate (61), a second top plate (62) and a plurality of connecting rods (63), wherein the plurality of connecting rods (63) respectively correspond to a plurality of top blocks (51), wherein the first top plate (61) is located on a side of the second top plate (62) close to the front mold (2) and is detachable from the second top plate (62), wherein the oil cylinder (64) is arranged on the front mold (2), wherein a piston rod of the oil cylinder (64) is detachable from the second top plate (62), and wherein two ends of the connecting rod (63) are respectively arranged on the first top plate (61) and on the corresponding top block (51).

6. A control box body (1) high fit ejection injection mold according to claim 5, characterized in that: An arched groove is provided on the outer wall of one end of the connecting rod (63) close to the top block (51); a mounting groove (512) matching the corresponding end of the connecting rod (63) is provided on the side surface of the top block (51) close to the first top plate (61); the top block (51) and the connecting rod (63) are fixed together by bolts; a positioning block (631) is provided at the bottom end of the connecting rod (63); a plurality of positioning grooves (611) matching the bottom end of the connecting rod (63) and the positioning block (631) are penetrated through the first top plate (61); and the second top plate (62) is used to press against the positioning block (631).

7. A control box body (1) high fit ejection injection mold according to claim 1, characterized in that: The core pulling mechanism (4) comprises a core pulling seat (41), a core pulling block (42) and a core pulling rod (43); the core pulling seat (41) slides on the front mold (2) along a core pulling direction perpendicular to the opening and closing mold; the core pulling rod (43) is arranged at an angle; one end of the core pulling rod (43) is fixed on the rear mold (3); the other end of the core pulling rod (43) slides on the core pulling seat (41) along an inclined direction; the core pulling block (42) is fixed on the core pulling seat (41) and slides with the core pulling seat (41); the core pulling block (42) is used to form a control box body (1).

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