Hanging needle adjusting assembly of injection mold

Abstract

The invention discloses a hanging needle adjusting assembly for an injection mold. The hanging needle adjusting assembly comprises a base, a rotary base and a movable block, the base is used for being installed on an injection mold. The rotary base is rotatably and adjustably arranged on the base; a rail groove is formed in the top of the rotating base, the movable block is arranged in the rail groove in a linear moving and adjusting mode, and a hanging needle is fixed to the movable block. The rotating base can be rotated and adjusted by 360 degrees, the T-shaped movement mechanism can be linearly moved and adjusted on the rotating base, and a screw is locked after the T-shaped movement mechanism moves to a desired position, so that the hanging needle can be adjusted at any position within a certain range, and the adjustment operation is simple and convenient; two or more assemblies can be arranged on a low-pressure injection mold according to different structures and molded surfaces, fine adjustment is achieved, fabric is stretched to meet the technological requirements better, produced products are more attractive, and mechanism operation is more convenient.

Description

Technical Field

[0001] This invention relates to the field of automotive decorative parts mold technology, and in particular to a low-pressure injection mold pin adjustment assembly. Background Technology

[0002] Currently, some mid-to-high-end automotive trim parts use low-pressure injection molding technology to achieve a high-end appearance on the surface of the trim parts. For example, fabrics, suede, and genuine leather are used to wrap the trim parts, improving their texture. To differentiate the configurations of the entire vehicle, the surface coverings of the trim parts are also different. Since the physical tensile properties of different coverings are different, the position of the pins in the mold needs to be adjusted accordingly to achieve the unfolded state of the sheets of different materials when using the same mold to achieve low-pressure injection molding of different materials.

[0003] Currently, the hanging pins are fixed or unidirectionally adjustable, which is not conducive to fine adjustment. This leads to excessive stretching or unsatisfactory unfolding of the sheet material, resulting in a lack of elasticity or slight wrinkles that fail to meet high quality requirements. Therefore, the existing technology has the following problems: 1. The position of the hanging pins in the existing low-pressure injection molding cannot be finely adjusted, resulting in poor product appearance; 2. The existing low-pressure injection molding hanging pins are inconvenient to adjust, and the debugging efficiency is low when trying out molds or changing the packaging material.

[0004] For example, the fixing structure of the hanging pin of the low-pressure injection mold disclosed in Chinese patent CN222727190U includes a mold template. A pressing block is movably installed on the other side of the mold template. The hanging pin body is movably inserted through one side of the pressing block. A connecting round block is fixedly installed at one end of the hanging pin body. Under the rotation of the worm gear, the worm wheel that meshes with it can rotate. Through the cooperation of the threaded tube and the threaded rod, the sliding block can slide in the inner cavity of the groove. The limiting block fixed on the sliding block can be inserted into the inner cavity of the limiting groove. The adjustment range of the hanging pin position is limited, and the adjustment accuracy is not easy to control. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides an injection mold pin adjustment component that offers accurate and convenient pin adjustment.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is as follows:

[0007] The injection mold pin adjustment assembly includes a base, a rotating base, and a movable block;

[0008] The base is used for mounting on the injection mold;

[0009] The rotating base is rotatably and adjustable on the base;

[0010] The top of the rotating base is provided with a rail groove, and the movable block is located in the rail groove and can be adjusted linearly. A hanging pin is fixed on the movable block.

[0011] Further or preferably:

[0012] The base is a ring-shaped pressing plate structure, the bottom of the rotating base is provided with a step, and the pressing plate structure is provided with a pressing surface corresponding to the step surface.

[0013] The upper annular top surface of the pressing plate structure is provided with an annular scale line, and the annular structure is provided with a group of fixing holes for fixing the mold.

[0014] The rotating base is a cylinder, the bottom of the cylinder is a stepped column, the stepped column forms a step, and the inside of the pressing plate structure is provided with a stepped hole matched with the step gap.

[0015] The rail groove on the rotating base is a T-shaped groove, the movable block is a T-shaped movable block matched with the T-shaped groove gap, and the T-shaped groove is provided with a scale line on one side of the top surface.

[0016] The top of the rotating base is provided with a vertical section on one side of the T-shaped groove, the vertical section is provided with a locking hole communicated with the T-shaped groove, and the locking hole is provided with a locking screw.

[0017] The top surface of the T-shaped movable block is provided with a circular hole for fixing the bottom end of the hanging needle, and the top surface is provided with an arrow mark on one side of the circular hole.

[0018] The rotating base body is provided with a flat surface on both sides or one side for clamping the tool for adjusting the angle of the rotating base.

[0019] The main body of the hanging needle is a cylinder, the top of the hanging needle is a sharp head, and the bottom end of the hanging needle is matched with the circular hole in an interference fit.

[0020] The bottom of the rotating base is provided with an arrow mark on the platform formed by the flat surface for cooperation with the scale line on the pressing plate.

[0021] Compared with the prior art, the present application has the following advantages:

[0022] The injection mold hanging needle adjusting assembly has reasonable structure, the rotating base can be adjusted by 360° rotation, the T-shaped moving mechanism can be adjusted by linear movement on the rotating base, and after being moved to the desired position, the locking screw can be locked, so that the hanging needle can be adjusted at any position within a certain range, and the adjustment operation is simple; according to different structures and surfaces, two or more such assemblies can be arranged on the low-pressure injection mold to realize fine adjustment, so that the fabric stretching is more in line with the process requirements, the produced products are more beautiful, and the mechanism operation is more convenient. BRIEF DESCRIPTION OF DRAWINGS

[0023] The content expressed by each figure in the present specification and the marks in the figures are briefly described as follows:

[0024] Figure 1Fig. 1 is a schematic view of the installation position of the hanging needle on the mold according to the present application.

[0025] Figure 2 Fig. 2 is a schematic view of the top of the hanging needle adjusting assembly according to the present application.

[0026] Figure 3 Fig. 3 is a schematic view of the structure of the hanging needle adjusting assembly according to the present application.

[0027] Figure 4 Fig. 4 is a schematic view of the structure of the hanging needle according to the present application. Figure 2 Fig. 5 is a schematic view of the section A-A of the hanging needle according to the present application. Fig. 6 is a schematic view of the section B-B of the hanging needle according to the present application.

[0028] Fig. 7 is an enlarged view of the section B of the hanging needle according to the present application. Figure 5 Fig. 8 is a schematic view of the structure of the T-shaped movable block according to the present application. Figure 4 Fig. 9 is a schematic view of the structure of the rotating base according to the present application. Fig. 10 is a schematic view of the structure of the pressing plate according to the present application.

[0029] Fig. 11 is a schematic view of the structure of the hanging needle according to the present application. Figure 6 Fig. 12 is a schematic view of the structure of the T-shaped movable block according to the present application. Fig. 13 is a schematic view of the structure of the rotating base according to the present application.

[0030] Fig. 14 is a schematic view of the structure of the pressing plate according to the present application. Figure 7 Fig. 15 is a schematic view of the structure of the hanging needle according to the present application. Fig. 16 is a schematic view of the structure of the T-shaped movable block according to the present application.

[0031] Fig. 17 is a schematic view of the structure of the rotating base according to the present application. Figure 8 Fig. 18 is a schematic view of the structure of the pressing plate according to the present application. Fig. 19 is a schematic view of the structure of the hanging needle according to the present application.

[0032] Fig. 20 is a schematic view of the structure of the T-shaped movable block according to the present application. Figure 9 Fig. 21 is a schematic view of the structure of the rotating base according to the present application. Fig. 22 is a schematic view of the structure of the pressing plate according to the present application.

[0033] Fig. 23 is a schematic view of the structure of the hanging needle according to the present application. Fig. 24 is a schematic view of the structure of the T-shaped movable block according to the present application.

[0034] 1, hanging needle adjusting assembly; 2, hanging needle; 3, T-shaped movable block; 4, rotating base; 5, pressing plate;

[0035] 11, mold;

[0036] 21, pointed head; 22, hanging needle body; 23, hanging needle step column;

[0037] 31, arrow mark I; 32, round hole; 33, locking surface;

[0038] 41, scale line I; 42, scale value I; 43, locking hole; 44, flat surface; 45, arrow mark II; 46, T-shaped groove; 47, cylindrical body; 48, step column;

[0039] 51, screw; 52, scale line II; 53, scale value II; 54, round hole; 431, locking screw; 511, pressing surface. DETAILED DESCRIPTION

[0040] Although the present application is shown and described herein in accordance with a specific embodiment thereof, it is not intended to be limited to the details shown, since various modifications can be made therein without departing from the scope of the present application. In the drawings, like numbers refer to like elements throughout.

[0041] Throughout this disclosure, various terms are used to describe the physical shape or arrangement of features. Many of these terms are used to describe features conforming to a cylindrical or generally cylindrical geometry with the feature as its radius and a central axis perpendicular to that radius. Unless otherwise specified, the terms are given the following meanings: The terms “longitudinal,” “longitudinal,” “axial,” and “axial” refer to a direction, dimension, or orientation parallel to the central axis. The terms “radial” and “radially” refer to a direction, dimension, or orientation perpendicular to the central axis. The terms “inward” and “inner” refer to a direction, dimension, or orientation extending radially toward the central axis. The terms “outward” and “outer” refer to a direction, dimension, or orientation extending radially away from the central axis.

[0042] In this specification, relative terms such as “horizontal,” “vertical,” “upward,” “downward,” “top,” and “bottom,” and their derivatives (e.g., “horizontal,” “downward,” “upward,” etc.) should be interpreted as referring to the direction described or the direction shown in the accompanying drawings. These relative terms are for ease of description and are not generally intended to require a specific direction.

[0043] The specific embodiments of the present invention will be further described in detail below with reference to the accompanying drawings and through the description of the examples.

[0044] like Figures 1 to 9 As shown, the injection mold pin adjustment assembly 1 includes a base, a rotating base 4, and a movable block; the base is used to install on the injection mold; the rotating base is horizontally rotatable and adjustable on the base; the top of the rotating base is provided with a rail groove, and the movable block is linearly movable and adjustable in the rail groove, with a pin 2 fixed on the movable block.

[0045] The bottom of the rotating base 4 is provided with a step, and a pressing surface is provided inside the base structure corresponding to the step surface. The rotating base is a cylinder, and the bottom of the cylinder is a stepped column, which forms a step. The pressure plate structure is provided with a step hole that fits with the step clearance.

[0046] Preferably, the base is a ring-shaped pressure plate 5 structure, and the pressure plate has a stepped hole in the center. The upper stepped hole is small and the lower stepped hole is large, and the step of the lower stepped hole forms a pressing surface.

[0047] The pressure plate structure has annular scale lines on its top surface, and a set of fixing holes for securing the mold. Specifically, the annular surface has angle markings and corresponding angle values, and three or more screws for fixing it to the mold body.

[0048] The rotating base body is a cylinder, the body diameter is matched with the stepped hole on the pressing plate, and a gap is matched. A stepped column is arranged below the rotating base body, the stepped column is matched with the stepped hole below the pressing plate, the diameters of the two holes are gap matched, and the stepped column and the stepped hole below the pressing plate are in an interference fit or an excessive fit relationship in height; the rotating base can be horizontally rotated by 360 degrees.

[0049] The rail groove on the rotating base is a T-shaped groove, the movable block is a T-shaped movable block 3 gap matched with the T-shaped groove, and a scale line is arranged on the top surface of the T-shaped groove. A vertical section is arranged on one side of the T-shaped groove at the top of the rotating base, the vertical section is provided with a locking hole communicated with the T-shaped groove, and a locking screw is arranged at the locking hole. A circular hole for fixing the bottom end of the hanging needle is arranged on the top surface of the T-shaped movable block, and an arrow mark is arranged on one side of the circular hole. The main body of the hanging needle is a cylinder, the top of the hanging needle is a sharp head, and the bottom end of the hanging needle is in interference fit with the circular hole.

[0050] Preferably, a T-shaped groove is arranged above the rotating base body, the T-shaped groove has a flat section on the same side, a plurality of screw holes are arranged on the flat section, the distance between the two screws is less than the length of the T-shaped movable block, and the screws are used for fixing the position of the T-shaped movable block; a length scale line and a corresponding length value are arranged on the edge of the T-shaped groove on the top surface of the rotating base body.

[0051] The T-shaped movable block is arranged in the T-shaped groove above the rotating base body in a gap matched manner, moves along a straight line, and an arrow mark scale line is arranged at the middle position of the edge of the top surface and is matched with the length scale line above the rotating base body; a stepped hole is arranged in the middle of the T-shaped movable block, the upper stepped hole is small, and the lower stepped hole is large.

[0052] The main body of the hanging needle is a cylinder, the main body diameter is matched with the upper stepped hole of the T-shaped movable block, and a gap is matched. A stepped column is arranged below the main body of the hanging needle, the stepped column is matched with the lower stepped hole of the T-shaped movable block, the diameters of the two holes are gap matched, and the stepped column and the lower stepped hole of the T-shaped movable block are in an interference fit relationship in height.

[0053] The main body diameter of the hanging needle is less than or equal to the hanging hole of the four corners of the fabric sheet, the top is designed as a sharp head, the sharp head penetrates through the hanging hole of the four corners of the fabric sheet, and the fabric is unfolded on the surface of the mold cavity; two or more structure assemblies are distributed according to different structures and profiles on the low-pressure injection mold and are matched for use.

[0054] The rotating base body is provided with a flat section on both sides or a single side for clamping a tool for adjusting the angle of the rotating base. An arrow mark is arranged on the platform formed by the flat section at the bottom of the rotating base and is matched with the scale line on the pressing plate.

[0055] The injection mold needle hanging adjusting assembly has reasonable structure design, the rotating base can be adjusted by 360° rotation, the T-shaped moving mechanism can be adjusted by linear movement on the rotating base, and after being moved to a desired position, a locking screw can be used to achieve needle hanging adjustment at any position within a certain range, and the adjustment operation is simple; two or more of the assemblies can be arranged on a low-pressure injection mold according to different structures and profiles, fine adjustment is achieved, fabric stretching is more in line with process requirements, and the produced products are more beautiful and the mechanism operation is more convenient.

[0056] The needle hanging adjusting assembly is a bidirectional adjusting needle hanging mechanism, has low cost, simple operation and high debugging efficiency, solves the problems of low efficiency and poor product appearance quality of fixed or single adjusting type, and can improve the installation and debugging efficiency of low-pressure injection needle hanging and the appearance quality effect of product production.

[0057] The preferred specific examples of the present application are as follows:

[0058] As shown in Figures 1 to 9 The present application provides a low-pressure injection bidirectional adjusting needle hanging mechanism; it comprises a rotating base 4 that can rotate by 360°, a pressing plate 5 for positioning and fixing the rotating base 4, a T-shaped movable block 3 arranged in a T-shaped groove 46 on the top of the rotating base 4 for linear adjustment sliding, and a needle 2 installed in a circular hole 32 of the T-shaped movable block 3.

[0059] Specifically, the rotating base 4 is a cylindrical structure, the upper end is a cylinder 47, and the lower end is a stepped column 48; the pressing plate 5 matched with the rotating base 4 is a circular ring structure and has a circular hole 54. The pressing plate 5 can be sleeved on the rotating base 4, so that the cylinder 47 on the rotating base 4 is in clearance fit with the circular hole 54 of the pressing plate 5 and plays a positioning role, and the pressing surfaces 511 of the two are in interference fit or excessive fit relationship. The pressing plate 5 is provided with a screw 51 for fixing on a mold 11. When the screw 51 is loosened, the rotating base 4 can rotate by 360° in the pressing plate 5, and when the screw 51 is locked, the rotating base 4 is fixed on the pressing plate 5.

[0060] The rotating base 4 is provided with an arrow mark 45, and the circumference of the pressing plate 5 is provided with a scale line II 52 and a scale value II 53. When the screw 51 on the pressing plate 5 is loosened, the flat surface 44 on the rotating base 4 is clamped by a tool, so that the rotating base 4 rotates, the scale line II 52 and the scale value II 53 on the pressing plate 5 pointed by the arrow mark II 45 on the rotating base 4 change, and when the screw 51 is locked, the scale line II 52 and the scale value II 53 on the pressing plate 5 pointed by the arrow mark II 45 on the rotating base 4 are locked, so as to record the ideal coordinates of the low-pressure injection fabric stretching position debugging.

[0061] The needle 2 body is a cylinder, and a sharp head 21 is arranged at the upper end for installation and orientation of the low-pressure injection fabric hole. The conical orientation principle is adopted to facilitate operation, and the middle is the needle body 22 of the needle 2. The needle body is used for installation and positioning of the fabric hole. The lower end of the needle is provided with a needle step 23 and a circular hole 32 of a T-shaped movable block 3 for installation and positioning.

[0062] The T-shaped movable block 3 moves linearly in the T-shaped groove 46 at the upper end of the rotating base 4. The upper end side of the rotating base 4 is provided with a locking hole 43, and a locking screw 431 is installed and matched,

[0063] When the locking screw 431 is loosened, the T-shaped movable block 3 can move in the T-shaped groove 46 at the upper end of the rotating base 4. When the locking screw 431 is tightened, the locking screw 431 is on the locking surface 33 of the T-shaped movable block 3, so that the T-shaped movable block 3 is fixed in position in the T-shaped groove 46 at the upper end of the rotating base 4.

[0064] The top surface of the T-shaped movable block 3 is provided with an arrow mark I 31, and the side of the T-shaped groove 46 at the upper end of the rotating base 4 is provided with a scale line I 41 and a scale value I 42. When the locking screw 431 is loosened, the T-shaped movable block 3 can move in the T-shaped groove 46 at the upper end of the rotating base 4. The arrow mark I 31 on the top surface of the T-shaped movable block 3 corresponds to the scale line I 41 and the scale value I 42 on the side of the T-shaped groove 46 at the upper end of the rotating base 4, and changes accordingly. When the locking screw 431 is locked, the position of the T-shaped movable block 3 in the T-shaped groove 46 at the upper end of the rotating base 4 is fixed, and the arrow mark I 31 on the top surface of the T-shaped movable block 3 corresponds to the scale line I 41 and the scale value I 42 on the side of the T-shaped groove 46 at the upper end of the rotating base 4, and the locking is indicated.

[0065] With the above structure, when the low-pressure injection fabric A is debugged, the screws 51 of the pressing plate 5 and the locking screws 431 on the rotating base 4 can be loosened, the rotating base 4 can be adjusted by 360° rotation, and the T-shaped movable block 3 can be adjusted in one direction. When the position of the needle 2 meets the requirements, the screws 51 of the pressing plate 5 and the locking screws 431 on the rotating base 4 are locked, and the angle and scale value are recorded. Similarly, when the low-pressure injection fabric B is debugged, the above actions are repeated and the corresponding values are recorded. In the later normal production, when A / B fabric is switched, the corresponding angle and scale value parameters can be adjusted to realize quick switching.

[0066] The structure can realize fixing of the hanging needle 2 at any position within a certain diameter range through adjustment of the rotating base 4 and the T-shaped movable block 3. Two or more structures are distributed on the low-pressure injection mold according to different structures and profiles, fine adjustment is realized, the adjustment degree of the fabric freely stretched on the mold 11 is greatly improved, the fabric is stretched to be more in line with the process requirements, the operation of the mechanism is more convenient, the produced product is more beautiful, the fabric on the product presents an extreme effect, and the problems of complicated switching of the traditional fixed or one-way adjustable hanging needle, product appearance defects caused by inability to fine adjustment, and slow operation efficiency are well solved.

[0067] The above is only a description of the preferred embodiments of the present application, and the above technical features can be combined to form multiple embodiments of the present application.

[0068] The above is an exemplary description of the present application in combination with the drawings. Apparently, the specific implementation of the present application is not limited by the above manner, and various non-essential improvements or direct application of the concept and technical scheme of the present application to other occasions without improvement are within the protection scope of the present application.

Claims

1. A pin adjustment assembly for injection molds, characterized in that: include: Base, used for mounting on injection molds; A rotating base, which is rotatably and adjustablely mounted on a base; The movable block is located in the groove on the top of the rotating base, and a hanging pin is fixed on the movable block so that it can be moved linearly and adjusted.

2. The injection mold pin adjustment assembly as described in claim 1, characterized in that: The base is a ring-shaped pressure plate structure, and the bottom of the rotating base is provided with a step, with a pressing surface corresponding to the step surface inside the pressure plate structure.

3. The injection mold pin adjustment assembly as described in claim 2, characterized in that: The pressure plate structure has an annular scale line on its upper annular top surface, and the annular structure has a set of fixing holes for fixing the mold.

4. The injection mold pin adjustment assembly as described in claim 3, characterized in that: The rotating base is a cylinder with a stepped column at the bottom, forming a step. The pressure plate structure has stepped holes inside that fit with the gap of the step.

5. The injection mold pin adjustment assembly as described in claim 1 or 4, characterized in that: The track groove on the rotating base is a T-shaped groove, the movable block is a T-shaped movable block that fits with the T-shaped groove with a clearance, and a scale line is provided on the top surface of one side of the T-shaped groove.

6. The injection mold pin adjustment assembly as described in claim 5, characterized in that: The top of the rotating base has a vertical cut surface on one side of the T-slot, and a locking hole connected to the T-slot is provided on the vertical cut surface. A locking screw is provided at the locking hole.

7. The injection mold pin adjustment assembly as described in claim 5, characterized in that: The top surface of the T-shaped movable block is provided with a round hole for fixing the bottom end of the hanging pin, and an arrow mark is provided on one side of the round hole on the top surface.

8. The injection mold pin adjustment assembly as described in claim 4 or 6, characterized in that: The rotating base body has flat cut surfaces on both sides or one side for tools to hold and adjust the angle of the rotating base.

9. The injection mold pin adjustment assembly as described in claim 7, characterized in that: The main body of the hanging pin is a cylinder, the top of the hanging pin is pointed, and the bottom of the hanging pin is interference-fitted with a round hole.

10. The injection mold pin adjustment assembly as described in claim 8, characterized in that: The bottom of the rotating base has arrow markings on a platform formed by a flat section, which are used to cooperate with the scale lines on the pressure plate.

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