Core-pulling mechanism and six-direction core-pulling vulcanization mold

Abstract

The invention discloses a core-pulling mechanism and a six-direction core-pulling vulcanization mold, and relates to the technical field of automobile part manufacturing, the core-pulling mechanism comprises a sliding block, and further comprises a movable mold core, a driving block, a connecting piece and a spring stop block; a conical parting surface is arranged at the front end of the movable mold core, and the rear end of the movable mold core is fixedly connected with the sliding block; the driving block is used for driving the slider to slide back and forth; the front end of the connecting piece penetrates through the spring check block and then is connected with the sliding block, and a reset spring is arranged between the rear end of the connecting piece and the spring check block and used for resetting the sliding block. The product quality is improved, the labor intensity is reduced, and mold storage is facilitated.

Description

Technical Field

[0001] The present invention relates to the technical field of automotive parts manufacturing, and more specifically to a core-pulling mechanism and a six-way core-pulling vulcanization mold. Background Art

[0002] Existing vulcanization molds usually have core-pulling in four directions: up and down, front and back, or up and down, left and right. During the injection vulcanization process of the main spring of a double-peak damping hydraulic bushing, six-way core-pulling is required. To meet the processing technology requirements, the cores in two directions are usually designed as movable cores. During vulcanization, the operator assembles the movable cores, and after vulcanization, the operator removes the movable cores beside the production line. However, this production method results in poor mold matching accuracy, high labor intensity, and great difficulty in mold storage. Summary of the Invention

[0003] Aiming at the defects existing in the prior art, the purpose of the present invention is to provide a core-pulling mechanism and a six-way core-pulling vulcanization mold, which improve product quality, reduce labor intensity, and are beneficial to mold storage.

[0004] To achieve the above object, the technical solution adopted by the present invention is: a core-pulling mechanism, including a slider, and further including a movable core, a driving block, a connecting piece, and a spring block; a tapered parting surface is provided at the front end of the movable core, and the rear end of the movable core is fixedly connected to the slider; the driving block is used to drive the slider to slide back and forth; the front end of the connecting piece passes through the spring block and is connected to the slider, and a return spring is provided between the rear end of the connecting piece and the spring block for resetting the slider.

[0005] Further improvement lies in that: the driving block is arranged above the slider in a liftable manner, and an extrusion inclined surface is provided at the front side of the lower end of the driving block; a pressure-receiving inclined surface adapted to the extrusion inclined surface is provided at the rear side of the upper end of the slider.

[0006] Further improvement lies in that: a limit convex block is provided at the upper end of the driving block, and the driving block is embedded in the upper template through the limit convex block.

[0007] Further improvement lies in that: the slider is provided with a mounting hole for mounting the movable core and a connecting hole for connecting the connecting piece.

[0008] Further improvement lies in that: the movable core is arranged in the mounting hole with an interference fit, and a positioning block is provided at the rear end of the movable core, and a positioning groove adapted to the positioning block is provided in the mounting hole.

[0009] Further improvement lies in that: the spring block is provided with a through hole for the connecting piece to pass through, and the lower end of the spring block is fixedly arranged on the lower template through a base.

[0010] Further improvement lies in that: the slider is slidably arranged on the lower template through a chute or a guiding strip.

[0011] A further improvement lies in that: the connecting piece includes a screw and a limiting sleeve fixedly sleeved on the screw. The front end of the screw extends out of the limiting sleeve and is connected to the slider. A flanging portion is provided at the rear end of the limiting sleeve. The return spring is sleeved on the limiting sleeve, and one end of the return spring abuts against the flanging portion, and the other end of the return spring abuts against the spring stopper.

[0012] The present invention also provides a six-direction core-pulling vulcanization mold for a bimodal damping hydraulic bushing, which includes an upper template, a lower template and two half-molds. A lower mold insert is provided on the lower template, and an upper mold insert corresponding to the lower mold insert is provided on the upper template. The two half-molds are arranged between the upper template and the lower template and are respectively located on the longitudinal sides of the lower mold insert. A wedge block for driving the half-mold to translate is provided on the outer side of the half-mold. It also includes two core-pulling mechanisms as described above. The two core-pulling mechanisms are respectively located on the transverse sides of the lower mold insert, and the moving stroke of the core-pulling mechanism is smaller than the moving stroke of the half-mold.

[0013] A further improvement lies in that: a blanking plate and a runner plate are sequentially arranged on the upper template.

[0014] The beneficial effects of the present invention are as follows:

[0015] 1. In the present invention, by arranging a reset mechanism such as a spring at the slider, two additional core-pulling directions are added in the conventional core-pulling direction, reducing the labor intensity during the vulcanization process and facilitating the storage of the mold.

[0016] 2. In the present invention, the structure of a driving block + slider is adopted, and the parting surface is matched through a conical surface, with high matching precision and small flash on the product.

[0017] 3. In the present invention, a taper fit is adopted at the parting surface of the movable core. On the one hand, it prevents the movable core from being bumped, and on the other hand, it helps to improve the glue sealing effect. Description of the Drawings

[0018] Figure 1 It is a schematic structural diagram of the core-pulling mechanism in the embodiment of the present invention;

[0019] Figure 2 It is a schematic structural diagram of the driving block in the embodiment of the present invention;

[0020] Figure 3 It is a schematic structural diagram of the slider in the embodiment of the present invention;

[0021] Figure 4 It is a schematic structural diagram of the movable core in the embodiment of the present invention;

[0022] Figure 5 It is a schematic structural diagram of the spring stopper in the embodiment of the present invention;

[0023] Figure 6 Structural schematic diagram of the connecting piece in the embodiment of the present invention;

[0024] Figure 7 Top view of the six-way core-pulling vulcanization mold in the embodiment of the present invention;

[0025] Figure 8 is Figure 7 Turning sectional view in the A-A direction in

[0026] Figure 9 is Figure 7 Turning sectional view in the B-B direction in

[0027] Reference numerals:

[0028] 1-core-pulling mechanism; 11-driving block; 111-extrusion inclined surface; 112-limit convex block; 12-slider; 121-compressed inclined surface; 122-mounting hole; 123-positioning groove; 124-connection hole; 13-movable core; 131-parting surface; 132-positioning block; 14-spring block; 141-through hole; 142-base; 15-connecting piece; 151-screw; 152-limit sleeve; 153-flanging part; 16-reset spring;

[0029] 2-lower template; 21-lower die insert;

[0030] 3-upper template; 31-upper die insert; 32-material taking plate; 33-runner plate;

[0031] 4-Half; 41-wedge block. Detailed implementation manners

[0032] The embodiments of the present invention will be described in detail below. The described embodiments are shown in the accompanying drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout.

[0033] In the description of the present invention, it should be noted that for the orientation terms, if there are terms such as "center", "transverse (X)", "longitudinal (Y)", "vertical (Z)", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., the indicated orientation and position relationships are based on the orientation or position relationships shown in the drawings. It is only for the convenience of describing the present invention 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, and should not be construed as limiting the specific protection scope of the present invention.

[0034] The following further describes the specific embodiments of the present invention in conjunction with the accompanying drawings of the specification, making the technical solutions and their beneficial effects of the present invention clearer and more definite. The embodiments described below by referring to the accompanying drawings are exemplary and are intended to explain the present invention, and should not be construed as limiting the present invention.

[0035] Referring to Figure 1 as shown, an ejection core mechanism provided by an embodiment of the present invention includes a slider 12, and further includes a movable core 13, a driving block 11, a connecting member 15, and a spring retaining block 14; a tapered parting surface 131 is provided at the front end of the movable core 13, and the rear end of the movable core 13 is fixedly connected to the slider 12; the driving block 11 is used to drive the slider 12 to slide back and forth; the front end of the connecting member 15 passes through the spring retaining block 14 and is connected to the slider 12, and a return spring 16 is provided between the rear end of the connecting member 15 and the spring retaining block 14 for resetting the slider 12.

[0036] Referring to Figure 2 and Figure 3 as shown, the driving block 11 is disposed above the slider 12 in a liftable manner, and an extrusion inclined surface 111 is provided at the front side of the lower end of the driving block 11; a pressure-receiving inclined surface 121 adapted to the extrusion inclined surface 111 is provided at the rear side of the upper end of the slider 12. A limit convex block 112 is provided at the upper end of the driving block 11, and the driving block 11 is embedded in the upper template 3 through the limit convex block 112.

[0037] Referring to Figure 3 and Figure 4 as shown, the slider 12 is provided with a mounting hole 122 for mounting the movable core 13 and a connection hole 124 for connecting the connecting member 15. Specifically, the movable core 13 is press-fitted in the mounting hole 122, and a positioning block 132 is provided at the rear end of the movable core 13, and a positioning groove 123 adapted to the positioning block 132 is provided in the mounting hole 122. The slider 12 is slidably disposed on the lower template 2 through a chute or a guiding strip.

[0038] Referring to Figure 5 as shown, the spring retaining block 14 is provided with a through hole 141 for the connecting member 15 to pass through, and the lower end of the spring retaining block 14 is fixedly disposed on the lower template 2 through a base 142.

[0039] Referring to Figure 6 as shown, the connecting member 15 includes a screw 151 and a limit sleeve 152 fixedly sleeved on the screw 151. The front end of the screw 151 extends out of the limit sleeve 152 and is connected to the slider 12. A flanging portion 153 is provided at the rear end of the limit sleeve 152; the return spring 16 is sleeved on the limit sleeve 152, and one end of the return spring 16 abuts against the flanging portion 153, and the other end of the return spring 16 abuts against the spring retaining block 14.

[0040] Referring to Figure 7 andFigure 8 and Figure 9 As shown in Figure 9 , an embodiment of the present invention further provides a six-direction core-pulling vulcanization mold for a bimodal damping hydraulic bushing, including an upper template 3, a lower template 2 and two half-molds 4. The lower template 2 is provided with a lower mold insert 21, and the upper template 3 is provided with an upper mold insert 31 corresponding to the lower mold insert 21. The two half-molds 4 are arranged between the upper template 3 and the lower template 2, and are respectively located on the longitudinal sides of the lower mold insert 21. A wedge block 41 for driving the half-mold 4 to translate is arranged on the outer side of the half-mold 4. The mold further includes two core-pulling mechanisms 1 as described above. The two core-pulling mechanisms 1 are respectively located on the transverse sides of the lower mold insert 21, and the moving stroke of the core-pulling mechanism 1 is smaller than the moving stroke of the half-mold 4. Specifically, a blanking plate 32 and a runner plate 33 are sequentially arranged on the upper template 3.

[0041] The working principle of the present invention is as follows:

[0042] When the mold is closed, the slider and the core are driven by the driving block installed on the upper mold to move to the designed position to ensure the smooth progress of the injection vulcanization process. When the mold is opened, as the upper and lower molds are separated, the slider and the core are separated from the product under the action of the spring, which is convenient for taking out the product from the mold.

[0043] In the description of the specification, the description with reference to terms such as "one embodiment", "preferably", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. The schematic description of the above terms in this specification does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0044] Through the description of the above structure and principle, those skilled in the art should understand that the present invention is not limited to the above specific embodiments. The improvements and substitutions using the well-known technologies in the art based on the present invention all fall within the protection scope of the present invention, which should be defined by each claim.

Claims

1. A core pulling mechanism, comprising a slider (12), characterized in that: The invention also comprises a movable core (13), a driving block (11), a connecting piece (15) and a spring stopper (14); the front end of the movable core (13) is provided with a conical parting surface (131), and the rear end of the movable core (13) is fixedly connected to the slider (12); the driving block (11) is used to drive the slider (12) to slide forward and backward; the front end of the connecting piece (15) passes through the spring stopper (14) and is connected to the slider (12); a reset spring (16) is provided between the rear end of the connecting piece (15) and the spring stopper (14) for resetting the slider (12).

2. The core pulling mechanism according to claim 1, characterized in that: The driving block (11) is movably arranged above the slider (12), and the front side of the lower end of the driving block (11) is provided with an extrusion inclined surface (111); the rear side of the upper end of the slider (12) is provided with a pressure inclined surface (121) matched with the extrusion inclined surface (111).

3. The core pulling mechanism according to claim 1, characterized in that: A limiting protrusion (112) is provided at the upper end of the driving block (11), and the driving block (11) is embedded in the upper template (3) via the limiting protrusion (112).

4. The core pulling mechanism according to claim 1, characterized in that: The slider (12) is provided with a mounting hole (122) for mounting the movable core (13) and a connecting hole (124) for connecting the connecting piece (15).

5. The core pulling mechanism according to claim 4, characterized in that: The movable core (13) is interference-arranged in the mounting hole (122), and a positioning block (132) is arranged at the rear end of the movable core (13), and a positioning groove (123) adapted to the positioning block (132) is arranged in the mounting hole (122).

6. The core pulling mechanism according to claim 1, characterized in that: The spring stopper (14) is provided with a through hole (141) for the connecting member (15) to pass through, and the lower end of the spring stopper (14) is fixedly arranged on the lower template (2) via a base (142).

7. The core pulling mechanism according to claim 1, characterized in that: The sliding block (12) is slidably arranged on the lower template (2) via a sliding groove or a guide strip.

8. The core pulling mechanism according to claim 1, characterized in that: The connecting member (15) comprises a screw (151) and a limiting sleeve (152) fixedly sleeved on the screw (151); the front end of the screw (151) extends out from the limiting sleeve (152) and is connected to the slider (12); the rear end of the limiting sleeve (152) is provided with a flange portion (153); the return spring (16) is sleeved on the limiting sleeve (152), one end of the return spring (16) is abutted against the flange portion (153), and the other end of the return spring (16) is abutted against the spring stopper (14).

9. A six-way core-pulling vulcanization mold for a bimodal damping hydraulic bushing, comprising an upper mold plate (3), a lower mold plate (2) and two half molds (4), wherein the lower mold plate (2) is provided with a lower mold insert (21), and the upper mold plate (3) is provided with an upper mold insert (31) corresponding to the lower mold insert (21); the two half molds (4) are arranged between the upper mold plate (3) and the lower mold plate (2), and are respectively located on both sides of the lower mold insert (21) in the longitudinal direction, and a wedge block (41) for driving the half mold (4) to translate is arranged on the outer side of the half mold (4); characterized in that: It also comprises two core pulling mechanisms (1) as described in any one of claims 1 to 8, the two core pulling mechanisms (1) are respectively located on the lateral sides of the lower mold insert (21), and the moving stroke of the core pulling mechanism (1) is smaller than the moving stroke of the half (4).

10. The six-way core-pulling vulcanization mold according to claim 1, characterized in that: The upper mold plate (3) is provided with a material taking plate (32) and a flow channel plate (33) in sequence.

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