Oil cylinder anti-retreating structure for automotive trim injection mold

Abstract

The utility model discloses an oil cylinder anti-retreating structure for an automotive trim injection mold, which comprises a support, an inclined drawer, a sliding component and an oil cylinder, one end of the inclined drawer is matched with a product, the other end of the inclined drawer is matched with the sliding component, the sliding component is arranged on the support and is connected with the oil cylinder through a piston rod, and the piston rod is connected with the oil cylinder. The sliding assembly comprises a sliding seat and a sliding block, a retaining part is arranged at the lower end of the sliding assembly, a gear elastic block protrudes from the retaining part towards the sliding assembly, a matching groove is formed in the lower end of the sliding seat, the gear elastic block is arranged in the matching groove, one side of the gear elastic block abuts against the sliding block, and the other side of the gear elastic block abuts against the inner wall of the matching groove; a limiting platform is arranged on the side, close to the inclined drawer, of the sliding block, an abutting platform is arranged on the inclined drawer, and the end face of the limiting platform abuts against the end face of the abutting platform to limit displacement of the inclined drawer. According to the utility model, two groups of retaining structures are adopted, so that the retaining effect can be greatly improved, and the cost required by mounting and dismounting is lower.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molding of automobile interior trim molds, in particular to an anti-retreat structure for an oil cylinder of an automobile interior trim injection mold. Background Art

[0002] In the process of forming automobile interior trim, especially for the interior trim related to the central control, the injection pressure is sometimes too high, and the hydraulic cylinder cannot hold up, resulting in the inclined withdrawal retreating, and the product flashing. Therefore, the oil cylinder will be locked and cannot be self-controlled, and it will definitely retreat, resulting in changes in the product structure. The oil cylinder relies on the self-locking function for a long time, has a very short service life, will seriously affect the forming of automobile interior trim products, low production efficiency, affect product quality, delivery time, etc.; and the existing anti-retreat structures of oil cylinders usually only use one method to prevent retreat, and the anti-retreat effect is insufficient. Summary of the Utility Model

[0003] Aiming at the deficiencies and defects of the prior art, an anti-retreat structure for an oil cylinder of an automobile interior trim injection mold is provided. To better achieve the purpose of preventing the oil cylinder from retreating, the following technical solutions are provided by the utility model.

[0004] An anti-retreat structure for an oil cylinder of an automobile interior trim injection mold includes a support, an inclined withdrawal, a sliding component and an oil cylinder. One end of the inclined withdrawal is arranged in cooperation with the product, and the other end is arranged in cooperation with the sliding component. The sliding component is arranged on the support, and the sliding component is connected with the oil cylinder through a piston rod. The sliding component includes a sliding seat and a sliding block. A retreat-preventing piece is arranged at the lower end of the sliding component. The retreat-preventing piece protrudes towards the sliding component with a blocking elastic block. A matching groove is arranged at the lower end of the sliding seat. The blocking elastic block is arranged in the matching groove, and one side of the blocking elastic block abuts against the sliding block, and the other side abuts against the inner wall of the matching groove; a limiting platform is arranged on the side of the sliding block close to the inclined withdrawal, and an abutting platform is arranged on the inclined withdrawal. The end face of the limiting platform abuts against the end face of the abutting platform to limit the displacement of the inclined withdrawal.

[0005] Compared with the prior art, by arranging a retreat-preventing piece at the lower end of the sliding component, the blocking elastic block on the retreat-preventing piece abuts against one end of the sliding block, which can prevent the inclined withdrawal from driving the sliding block to retreat. At the same time, on the side where the sliding block is matched with the inclined withdrawal, a limiting platform is arranged on the sliding block, and an abutting platform is arranged on the inclined withdrawal. Through the matching arrangement of the limiting platform and the abutting platform, the sliding block can further be stuck to the inclined withdrawal to prevent the inclined withdrawal from retreating; the utility model adopts two groups of anti-retreat structures, which can greatly improve the anti-retreat effect, and the cooperation between the structures is simple, and the cost required for installation and disassembly is relatively low.

[0006] Further, a chute is provided at one end of the sliding block away from the sliding seat. The cross-section of the chute is T-shaped. A sliding buckle is provided on the inclined draw. The sliding buckle is fitted in the chute.

[0007] Through the above improvements, the sliding buckle on the inclined draw is fitted with the chute on the sliding block. The chute can limit the movement direction of the inclined draw, enabling the sliding block to lock the inclined draw well, and making it relatively convenient to disassemble the inclined draw from the sliding block after the operation is completed.

[0008] Further, the chute includes a contact surface. A gap is provided between the sliding buckle and the contact surface. The distance of the gap is 4 mm.

[0009] Through the above improvements, a gap is provided between the sliding buckle and the contact surface of the chute. After the slider is disengaged from the inclined draw in the flat position, it is convenient for the inclined draw to be demolded.

[0010] Further, a limiting block protrudes from the lower end of the mating groove towards the anti-retreat member. An inclined groove is provided at one end of the blocking elastic block close to the sliding seat. The limiting block is fitted with the inclined groove.

[0011] Through the above improvements, the protruding limiting block in the mating groove is fitted with the inclined groove on the blocking elastic block, which can conveniently press down the blocking elastic block during anti-retreat, saving the energy required for the operation.

[0012] Further, a first inclined surface is provided on the limiting block, and a second inclined surface is provided on the inclined groove. The first inclined surface and the second inclined surface are slidably connected.

[0013] Through the above improvements, when the sliding seat moves, the first inclined surface on the limiting block and the second inclined surface on the inclined groove are slidably connected, which can conveniently press down the blocking elastic block and the operation is simple.

[0014] Further, the anti-retreat member further includes a fixing block and a spring. The blocking elastic block is installed in the fixing block, and the spring is installed at the lower end of the blocking elastic block.

[0015] Through the above improvements, the fixing block on the anti-retreat member is used to install the blocking elastic block. The blocking elastic block can slide up and down in the fixing block to limit the movement of the blocking elastic block. At the same time, a spring is provided at the lower end of the blocking elastic block, which can conveniently reset the blocking elastic block when the blocking elastic block needs to be anti-retreated.

[0016] Further, the sliding block and the sliding seat are connected by a dowel screw. A sliding cavity is provided in the sliding seat. One end of the dowel screw is threadedly connected in the sliding block, and the other end is provided in the sliding cavity.

[0017] Through the above improvements, the sliding block and the sliding seat are connected by a dowel screw, and the connection strength is relatively high. One end of the dowel screw is threadedly connected inside the sliding block, and the connection with the sliding block is relatively stable. The other end is arranged in the sliding cavity and can slide in the sliding cavity, thereby driving the displacement of the sliding block.

[0018] Further, guide bars are arranged on both sides of the support, and the guide bars are respectively abutted against both sides of the sliding assembly.

[0019] Through the above improvements, the guide bars arranged on both sides of the support can limit the sliding direction of the sliding assembly and prevent deviation from causing poor effects. Description of the Drawings

[0020] Figure 1 It is a three-dimensional structural schematic diagram of an oil cylinder anti-retreat structure for an automotive interior injection mold;

[0021] Figure 2 It is a partial enlarged structural schematic diagram of the A position of an oil cylinder anti-retreat structure for an automotive interior injection mold;

[0022] Figure 3 It is a front-view structural schematic diagram of an oil cylinder anti-retreat structure for an automotive interior injection mold;

[0023] Figure 4 It is a top-view structural schematic diagram of an oil cylinder anti-retreat structure for an automotive interior injection mold;

[0024] Figure 5 It is a sectional structural schematic diagram of the B-B position of an oil cylinder anti-retreat structure for an automotive interior injection mold;

[0025] Figure 6 It is a sectional structural schematic diagram of the B-B position of an oil cylinder anti-retreat structure for an automotive interior injection mold (after demolding);

[0026] Figure 7 It is an exploded structural schematic diagram of the sliding seat and the gear position elastic block of an oil cylinder anti-retreat structure for an automotive interior injection mold.

[0027] Among them, 1. Support; 1.1 Guide bar; 2. Oblique draw; 2.1 Contact platform; 2.2 Sliding buckle; 3. Sliding assembly; 3.1 Sliding seat; 3.11 Matching groove; 3.12 Limit block; 3.121 First inclined surface; 3.13 Sliding cavity; 3.2 Sliding block; 3.21 Limit platform; 3.22 Sliding groove; 3.221 Contact surface; 3.23 Gap; 4. Oil cylinder; 5. Piston rod; 6. Anti-retreat part; 6.1 Gear position elastic block; 6.11 Oblique groove; 6.12 Second inclined surface; 6.2 Fixed block; 6.3 Spring; 7. Dowel screw. Detailed implementation mode

[0028] The present utility model will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0029] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, so it cannot be understood as a limitation of the present utility model. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0030] As Figures 1 to 7 shown, an anti-retreat structure for an oil cylinder of an automobile interior injection mold includes a support 1, an inclined draw 2, a sliding assembly 3, and an oil cylinder 4. One end of the inclined draw 2 is arranged in cooperation with the product, and the other end is arranged in cooperation with the sliding assembly 3. The sliding assembly 3 is arranged on the support 1. The sliding assembly 3 is connected to the oil cylinder 4 through a piston rod 5. The sliding assembly 3 includes a sliding seat 3.1 and a sliding block 3.2. A stop member 6 is arranged at the lower end of the sliding assembly 3. The stop member 6 protrudes towards the sliding assembly 3 with a gear block 6.1. A mating groove 3.11 is arranged at the lower end of the sliding seat 3.1. The gear block 6.1 is arranged in the mating groove 3.11. One side of the gear block 6.1 abuts against the sliding block 3.2, and the other side abuts against the inner wall of the mating groove 3.11. A limiting platform 3.21 is arranged on one side of the sliding block 3.2 close to the inclined draw 2. An abutting platform 2.1 is arranged on the inclined draw 2. The end face of the limiting platform 3.21 abuts against the end face of the abutting platform 2.1 to limit the displacement of the inclined draw 2.

[0031] The sliding assembly 3 is arranged on the support 1. Guide bars 1.1 are arranged on both sides of the support 1. The guide bars 1.1 abut against both sides of the sliding assembly 3. When the sliding seat 3.1 and the sliding block 3.2 move, the sliding block 3.2 and the sliding seat 3.1 can always maintain linear displacement, preventing deviation and affecting the service life.

[0032] The sliding block 3.2 and the sliding seat 3.1 of the sliding assembly 3 are connected by two setscrew bolts 7, so that the connection strength between the sliding block 3.2 and the sliding seat 3.1 can be greatly improved. One end of the setscrew bolt 7 is fixedly connected in the sliding block 3.2 by thread, and the connection with the sliding block 3.2 is relatively stable and will not fall off during movement. The other end is arranged in a sliding cavity 3.13 and can slide in the sliding cavity 3.13, so as to drive the sliding block 3.2 to displace.

[0033] A matching groove 3.11 is provided at the lower end of the sliding seat 3.1, and the matching groove 3.11 is used to match with the shift spring block 6.1 on the stop member 6. A limit block 3.12 protrudes from the lower end of the matching groove 3.11 toward the forehead of the stop member 6, and an inclined groove 6.11 is provided at the upper end of the shift spring block 6.1. The limit block 3.12 is matched with the inclined groove 6.11, and a first inclined surface 3.121 is provided on the limit block 3.12, and a second inclined surface 6.12 is provided on the inclined groove 6.11. When the sliding seat 3.1 moves, the limit block 3.12 is matched with the inclined groove 6.11, and the first inclined surface 3.121 slides on the second inclined surface 6.12 so that the limit block 3.12 can press the shift spring block 6.1 downward.

[0034] A slide groove 3.22 is provided on the side of the sliding block 3.2 away from the sliding seat 3.1. The slide groove 3.22 is used to cooperate with the oblique drawer 2. A sliding buckle 2.2 is provided on the oblique drawer 2. The sliding buckle 2.2 is cooperated in the slide groove 3.22. The cross-sectional shape of the slide groove 3.22 is T-shaped. The protrusions on both sides of the sliding buckle 2.2 just cooperate with the slide groove 3.22. The slide groove 3.22 includes a contact surface 3.221. A gap 3.23 is provided between the sliding buckle 2.2 and the abutment surface 3.221. The distance of the gap 3.23 is 4mm. After the slider is in a flat position and disengaged from the oblique drawer 2, the oblique drawer 2 can be easily demolded.

[0035] During demoulding, the oil cylinder 4 pulls the slider seat through the piston rod 5, and the piston rod 5 contracts. During the movement of the slider seat, the first inclined surface 3.121 on the limit block 3.12 at the lower end of the sliding seat 3.1 drives the shift spring 6.1 to retreat downward, and after the slider seat reaches the stroke limit position of the plug screw 7, the slider seat drives the sliding block 3.2 to move by the plug screw 7. When the sliding block 3.2 moves 4mm, the gap 3.23 between the sliding block 3.2 and the oblique drawer 2 disappears, the sliding block 3.2 is in a horizontal position and disengaged from the oblique drawer 2, and the sliding block 3.2 limit platform 3.21 is in contact with the oblique drawer 2 abutment platform 2.1, and then the T-shaped slide groove 3.22 structure is used to drive the oblique drawer 2 until the oblique drawer 2 is out of the product inverted stroke.

[0036] The above are only preferred embodiments of the present invention. The scope of protection of the present invention is not limited to the above embodiments. All technical solutions based on the concept of the present invention are within the scope of protection of the present invention. It should be noted that for those skilled in the art, certain improvements and modifications that do not depart from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. An anti-retreat structure for an oil cylinder of an injection mold for automobile interior trim, characterized in that: It includes a support (1), an inclined draw (2), a sliding component (3) and an oil cylinder (4). One end of the inclined draw (2) is arranged in cooperation with a product, and the other end is arranged in cooperation with the sliding component (3). The sliding component (3) is arranged on the support (1). The sliding component (3) is connected to the oil cylinder (4) through a piston rod (5). The sliding component (3) includes a sliding seat (3.1) and a sliding block (3.2). A retaining member (6) is arranged at the lower end of the sliding component (3). The retaining member (6) protrudes towards the sliding component (3) with a blocking elastic block (6.1). A mating groove (3.11) is arranged at the lower end of the sliding seat (3.1). The blocking elastic block (6.1) is arranged in the mating groove (3.11). One side of the blocking elastic block (6.1) abuts against the sliding block (3.2), and the other side abuts against the inner wall of the mating groove (3.11). A limiting platform (3.21) is arranged on one side of the sliding block (3.2) close to the inclined draw (2). An abutting platform (2.1) is arranged on the inclined draw (2). The end face of the limiting platform (3.21) abuts against the end face of the abutting platform (2.1) to limit the displacement of the inclined draw (2).

2. The oil cylinder anti-retreat structure for an automotive interior injection mold according to claim 1, characterized in that: A chute (3.22) is arranged at one end of the sliding block (3.2) away from the sliding seat (3.1). The cross section of the chute (3.22) is T-shaped. A sliding buckle (2.2) is arranged on the inclined draw (2). The sliding buckle (2.2) is arranged in the chute (3.22) in a matching manner.

3. The oil cylinder anti-retreat structure for an automotive interior injection mold according to claim 2, characterized in that: The chute (3.22) includes an abutting surface (3.221). A gap (3.23) is arranged between the sliding buckle (2.2) and the abutting surface (3.221). The distance of the gap (3.23) is 4 mm.

4. The oil cylinder anti-retreat structure for an automotive interior injection mold according to claim 1, characterized in that: A limiting block (3.12) protrudes from the lower end of the mating groove (3.11) towards the retaining member (6). An inclined groove (6.11) is arranged at one end of the blocking elastic block (6.1) close to the sliding seat (3.1). The limiting block (3.12) is arranged in cooperation with the inclined groove (6.11).

5. The oil cylinder anti-retreat structure for an automotive interior injection mold according to claim 4, characterized in that: A first inclined surface (3.121) is arranged on the limiting block (3.12). A second inclined surface (6.12) is arranged on the inclined groove (6.11). The first inclined surface (3.121) and the second inclined surface (6.12) are arranged in a sliding connection manner.

6. The oil cylinder anti-retreat structure for an automotive interior injection mold according to claim 1, characterized in that: The retaining member (6) further includes a fixing block (6.2) and a spring (6.3). The blocking elastic block (6.1) is installed in the fixing block (6.2). The spring (6.3) is installed at the lower end of the blocking elastic block (6.1).

7. The oil cylinder anti-retreat structure for an automotive interior injection mold according to claim 1, characterized in that: The sliding block (3.2) and the sliding seat (3.1) are connected through a dowel screw (7). A sliding cavity (3.13) is arranged in the sliding seat (3.1). One end of the dowel screw (7) is threadedly connected in the sliding block (3.2), and the other end is arranged in the sliding cavity (3.13).

8. The oil cylinder anti-retreat structure for an automotive interior injection mold according to claim 1, characterized in that: Guide bars (1.1) are provided on both sides of the support (1), and the guide bars (1.1) are respectively abutted against both sides of the sliding assembly (3).

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