Workpiece forming die

Abstract

A workpiece forming die is used for forming a workpiece, the workpiece comprises a box-shaped box body and hanging lugs connected to the two sides of the box body, a functional hole is defined by the hanging lugs and the box body, the workpiece forming die comprises an upper die and a lower die, and the upper die comprises a first upper die plate, a second upper die plate, a third upper die plate, a plurality of inclined guide columns and a plurality of upper die cores. The upper mold core is fixed to the bottom of the third upper mold plate, every two inclined guide columns form a group, the two inclined guide columns in the same group are arranged on the two sides of the upper mold core, and the inclined guide columns penetrate through the third upper mold plate; the lower die comprises a bottom plate, a supporting plate arranged on the bottom plate, a lower die plate arranged on the supporting plate, a lower die core and a side die core which are arranged on the lower die plate, and a guide group which is arranged on the lower die plate and is used for guiding the side die core, and the guide group is arranged on the lower die and is used for guiding the side die core; the side mold core can move in the horizontal direction under the guide of the guide block, the whole forming mold does not need to adopt an additional driving air cylinder to adjust the position of the side mold core, the mold structure is effectively simplified, the production cost is saved, and the practicability is high.

Description

Technical Field

[0001] This utility model relates to a mold structure, and more particularly to a workpiece forming mold. Background Technology

[0002] Molds are various shapes and tools used in industrial production to obtain desired products through methods such as injection molding, blow molding, extrusion, die casting, forging, smelting, and stamping. In short, a mold is a tool used to create shaped objects. This tool is composed of various parts, and different molds are composed of different parts. Injection molds are one of the most widely used types of molds.

[0003] Existing injection molds for processing workpieces with lugs typically include an upper mold core, a lower mold core, and side mold cores. The upper and lower mold cores form the main body of the workpiece, while the side mold cores form the lugs. To ensure smooth removal of the molded workpiece, an ejection mechanism is also provided. After the workpiece is formed, this mechanism drives the side mold cores to exit from one side. Existing mold ejection mechanisms usually use cylinders to move the side mold cores. However, using cylinders requires additional cylinders, increasing the cost and complexity of the mold, causing problems for manufacturers. Utility Model Content

[0004] Therefore, it is necessary to provide a workpiece forming mold to address the shortcomings of existing technologies.

[0005] The technical solution of this utility model is as follows: a workpiece forming mold for forming a workpiece, the workpiece including a box-shaped box body and hanging ears connected to both sides of the box body, the hanging ears and the box body forming a functional hole, the workpiece forming mold including an upper mold and a lower mold, the upper mold including a first upper template, a second upper template, a third upper template, a plurality of inclined guide pillars, and a plurality of upper mold cores, the upper mold cores being fixed at the bottom of the third upper template, the inclined guide pillars being in groups of two, the two inclined guide pillars in the same group being located on both sides of an upper mold core, the inclined guide pillars passing through the third upper template;

[0006] The lower mold includes a base plate, a support plate mounted on the base plate, a lower template mounted on the support plate, a lower mold core and a side mold core mounted on the lower template, and a guide group mounted on the lower template to guide the side mold cores. The lower mold cores and upper mold cores are matched one-to-one. Two side mold cores are provided on both sides of each lower mold core. Each side mold core is matched with a guide group. The lower mold core is provided with an inclined guide hole, which matches the inclined guide post of the upper mold. When the mold is opened, the inclined guide post presses outward against the wall of the inclined guide hole, causing the side mold cores to move outward.

[0007] The lower template is provided with guide grooves on both sides of the lower mold core. The guide grooves are provided with recesses on both sides of the groove opening near the upper end face of the lower template. Each guide group includes two guide blocks and several positioning components. The two guide blocks are respectively installed on the recesses through the positioning components, and the two guide blocks extend into the guide groove in the horizontal direction.

[0008] The side mold core includes a main body, guide edges connected to the front and rear sides of the main body, and a forming part connected to one side of the main body in the horizontal direction. An oblique guide hole is provided on the main body. The main body of the side mold core passes through the two guide blocks of the guide group, and the guide edges are stuck below the guide blocks.

[0009] In one embodiment, the forming part has a side protrusion on the side away from the main body, and a functional groove is formed on the outer periphery of the side protrusion. When the mold is closed, the upper mold moves towards the lower mold, so that the lower mold core and the upper mold core fit together and surround the main mold cavity. When the upper mold moves towards the lower mold, the functional groove and the side wall of the lower mold core surround an inner cavity. The inner cavity surrounds the outside of the side protrusion. The inner cavity and the side protrusion are used to form the hanging ear part of the workpiece.

[0010] In one embodiment, the guide assembly further includes a positioning pin, which is installed at the bottom of the guide groove and limits the position of the side mold core from the rear.

[0011] In one embodiment, the upper mold further includes several fasteners. The first upper template, the second upper template, and the third upper template are arranged vertically from top to bottom, and the first upper template, the second upper template, and the third upper template are connected as a whole by fasteners.

[0012] In one embodiment, the upper mold further includes several fixing plates and several locking fasteners. The fixing plates are fixed to the third upper mold plate by fasteners, and the fixing plates limit the oblique guide post.

[0013] In one embodiment, the upper surface of the third upper template is provided with an installation groove corresponding to each set of inclined guide posts, and the bottom of the installation groove is provided with a slot. The bottom surface of the third upper template is provided with a clearance slot corresponding to each set of inclined guide posts. The third upper template is also provided with several through holes, which connect the slot and the clearance slot. The cross-section of the inclined guide post is T-shaped. During assembly, the upper end of the inclined guide post is locked in the slot, and the inclined guide post passes through the through holes and the clearance slot and extends to the bottom of the third upper template. The fixing plate is installed in the installation groove by a fixing member.

[0014] In one embodiment, an ejection mechanism is also included, which includes a top plate and a plurality of ejector pins mounted on the top plate, the ejector pins passing through the lower template.

[0015] The beneficial effects of this workpiece forming mold are as follows: by setting a guide group on the lower mold to guide the side mold core, the side mold core can be moved horizontally under the guidance of the guide block. The side mold core is used to form the hanging lug of the workpiece, and thus the side protrusion of the side mold core exits from the functional hole of the workpiece. The entire forming mold does not require an additional drive cylinder to adjust the position of the side mold core, effectively simplifying the mold structure, saving production costs, and making it highly practical. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the workpiece forming mold of this utility model;

[0017] Figure 2 for Figure 1 An exploded view of the workpiece forming mold shown.

[0018] Figure 3 for Figure 2 A schematic diagram of the side mold core of the workpiece forming mold shown;

[0019] Figure 4 This is a cross-sectional view of the workpiece forming mold of this utility model;

[0020] Figure 5 for Figure 4 Enlarged view of part A in the middle. Detailed Implementation

[0021] To make the above-mentioned objects, features, and advantages of the present invention more clearly understood, the following detailed description of specific embodiments of the present invention is provided in conjunction with the accompanying drawings. The following description sets forth many specific details to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways than those described herein, and those skilled in the art may make similar modifications without departing from the scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0022] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0023] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0024] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0025] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0026] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0027] Please see Figures 1 to 5 This utility model provides a workpiece forming mold for forming a workpiece 100. The workpiece 100 includes a box-shaped body 110 and hanging ears 120 connected to both sides of the body 110. The hanging ears 120 are arc-shaped strips, and the hanging ears 120 and the body 110 together form a functional hole 130. The workpiece forming mold includes an upper mold 10 and a lower mold 20. The lower mold 20 and the upper mold 10 cooperate to form a cavity for injection molding the workpiece 100.

[0028] The upper mold 10 includes a first upper template 11, a second upper template 12, a third upper template 13, several inclined guide pillars 16, an upper mold core 14, several fixing parts 15, several fixing plates 17, and several locking parts 18. The first upper template 11, the second upper template 12, and the third upper template 13 are arranged vertically from top to bottom. The first upper template 11, the second upper template 12, and the third upper template 13 are connected as a whole by the locking parts 18. The upper mold cores 14 are fixed side by side to the bottom of the third upper template 13 by the locking parts 18. The inclined guide pillars 16 are arranged in pairs, and the two inclined guide pillars 16 in the same group are located on both sides of an upper mold core 14. The inclined guide pillars 16 pass through the third upper template 13. The fixing plates 17 are installed and fixed to the third upper template 13 by the fixing parts 15, and the fixing plates 17 limit the inclined guide pillars 16.

[0029] Specifically, the upper surface of the third upper template 13 is provided with an installation groove 131 corresponding to each group of inclined guide posts 16, and the bottom of the installation groove 131 is provided with a slot 132. The bottom surface of the third upper template 13 is provided with a clearance slot 134 corresponding to each group of inclined guide posts 16. The third upper template 13 is also provided with several through holes 133, which connect the slot 132 and the clearance slot 134. The cross-section of the inclined guide post 16 is T-shaped. During assembly, the upper end of the inclined guide post 16 is locked in the slot 132. The inclined guide post 16 passes through the through hole 133 and the clearance slot 134 and extends to the bottom of the third upper template 13. The fixing plate 17 is installed in the installation groove 131 by the fixing member 15. The inclined guide posts 16 installed on the third upper template 13 are inclined outward, and the two inclined guide posts 16 in the same group are distributed in a figure-eight shape.

[0030] The lower mold 20 includes a base plate 21, a support plate 22 mounted on the base plate 21, a lower template 23 mounted on the support plate 22, a lower mold core 24 and a side mold core 26 mounted on the lower template 23, and a guide group 25 mounted on the lower template 23 to guide the side mold cores 26. The lower mold core 24 and the upper mold core 14 are matched one-to-one. Two side mold cores 26 are provided on both sides of each lower mold core 24. Each side mold core 26 is matched with a guide group 25.

[0031] Specifically, the lower mold core 24 is mounted side by side on the lower template 23. The lower template 23 is also provided with guide grooves 231 on both sides of the lower mold core 24. The guide grooves 231 have recesses on both sides of the groove opening near the upper end face of the lower template 23. The guide group 25 includes two guide blocks 251 and several positioning elements 252. The two guide blocks 251 are respectively mounted on the recesses through the positioning elements 252. Furthermore, the two guide blocks 251 extend into the guide grooves 231 in the horizontal direction.

[0032] The side mold core 26 includes a main body 261, guide edges 262 connected to the front and rear sides of the main body 261, and a forming part 263 connected to one side of the main body 261 in the horizontal direction. The forming part 263 has a side protrusion 264 on the side away from the main body 261, and a functional groove 265 is formed on the outer periphery of the side protrusion 264. Additionally, the main body 261 also has an oblique guide hole 266. During assembly, the main body 261 of the side mold core 26 passes between the two guide blocks 251 of the guide assembly 25, and the guide edges 262 are engaged below the guide blocks 251. Furthermore, the guide assembly 25 also includes a positioning pin 253, which is installed at the bottom of the guide groove 231. The positioning pin 253 limits the side mold core 26 from the rear, preventing it from falling off the lower mold 20. The side mold core 26 can move horizontally under the guidance of the guide blocks 251.

[0033] When the mold is closed, the upper mold 10 moves toward the lower mold 20, so that the lower mold core 24 and the upper mold core 14 fit together and form the main mold cavity 101. When the upper mold 10 moves toward the lower mold 20, the inclined guide post 16 presses inward against the wall of the inclined guide hole 266, so that the side mold core 26 moves inward and fits tightly against the lower mold core 24. The functional groove 265 and the side wall of the lower mold core 24 form an inner cavity 102. The inner cavity 102 surrounds the outside of the side protrusion 264 and is connected to the main mold cavity 101. The side mold core 26 extends into the relief groove 134.

[0034] Injecting material into the mold in the mold-closed state fills the main mold cavity 101 and the inner cavity 102. The main mold cavity 101 is used to form the box body 110 part of the workpiece 100, and the inner cavity 102 and the side protrusion 264 are used to form the hanging ear 120 part of the workpiece 100.

[0035] When the mold is opened, the upper mold 10 moves upward away from the lower mold 20. During the upward movement of the upper mold 10, the inclined guide post 16 presses outward against the wall of the inclined guide hole 266, causing the side mold core 26 to move outward, thereby causing the side protrusion 264 of the side mold core 26 to exit from the functional hole 130 of the workpiece 100.

[0036] This utility model also includes an ejection mechanism 30, which includes a top plate 31 and a plurality of ejector pins 32 mounted on the top plate 31. The ejector pins 32 pass through the lower mold plate 23. When the mold is closed, the ejector pins 32 retract to a position flush with the upper end face of the lower mold core 24. After the mold is opened, the external drive mechanism drives the top plate 31 to move upward, and the ejector pins 32 extend into the position above the lower mold core 24 and eject the product.

[0037] The beneficial effects of this workpiece forming mold are as follows: By setting a guide group 25 on the lower mold 20 to guide the side mold core 26, the side mold core 26 can be moved horizontally under the guidance of the guide block 251. The side mold core 26 is used to form the lug 120 of the workpiece 100. Furthermore, the upper mold 10 uses an inclined guide post 16 to cooperate with the inclined guide hole 266 on the lower mold core 24. When the mold is opened, the inclined guide post 16 presses outward against the hole wall of the inclined guide hole 266, causing the side mold core 26 to move outward, thereby allowing the side protrusion 264 of the side mold core 26 to exit from the functional hole 130 of the workpiece 100. The entire forming mold does not require an additional drive cylinder to adjust the side mold core 26, effectively simplifying the mold structure, saving production costs, and having strong practicality.

[0038] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0039] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A workpiece forming mold, used for forming a workpiece, the workpiece comprises a box-shaped box body and hanging ears connected to both sides of the box body, the hanging ears and the box body enclose a functional hole, the workpiece forming mold comprises an upper mold and a lower mold, characterized in that: The upper mold comprises a first upper mold, a second upper mold, a third upper mold, a plurality of inclined guide pillars, and a plurality of upper mold cores. The upper mold core is fixed to the bottom of the third upper mold. Two inclined guide pillars form a group. The two inclined guide pillars in the same group are arranged at both sides of an upper mold core. The inclined guide pillars pass through the third upper mold. The lower mold comprises a bottom plate, a support plate mounted on the bottom plate, a lower mold plate mounted on the support plate, a lower mold core and a side mold core mounted on the lower mold plate, and a guide group mounted on the lower mold plate and guiding the side mold core. The lower mold core is matched with the upper mold core in a one-to-one correspondence. Two side mold cores are arranged on both sides of each lower mold core. Each side mold core is matched with a guide group in a corresponding manner. An oblique guide hole is arranged on the lower mold core. The oblique guide hole is matched with an oblique guide column of the upper mold. When the mold is opened, the oblique guide column presses the hole wall of the oblique guide hole outward to cause the side mold core to shift outward. The lower template is also provided with guide grooves on both sides of the lower mold core, and notches are provided on both sides of the groove of the guide groove close to the upper end surface of the lower template. Each of the guide groups includes two guide blocks and a plurality of positioning members. The two guide blocks are respectively mounted on the notches through the positioning members, and the two guide blocks extend into the guide grooves in the horizontal direction; the side mold core includes a main body, guide edges connected to the front and rear sides of the main body, and a forming part connected to one side of the main body in the horizontal direction. The oblique guide hole is arranged on the main body, and the main body of the side mold core passes through between the two guide blocks of the guide group, and the guide edge is stuck under the guide block.

2. The workpiece forming die according to claim 1, characterized in that: The molding portion is provided with a side convexity on one side away from the main body portion, and a functional groove is formed on the outer periphery of the side convexity. When the mold is closed, the upper mold is shifted toward the lower mold so that the lower mold core and the upper mold core are attached to and enclosed into a main mold cavity. When the upper mold is shifted toward the lower mold, the functional groove and the side wall of the lower mold core are enclosed into an inner cavity. The inner cavity is arranged on the outside of the side convexity. The inner cavity and the side convexity are used to form the ear-hanging part of the molding workpiece.

3. The workpiece forming die according to claim 1, characterized in that: The guide group also includes a positioning pin, which is installed at the bottom of the guide groove and limits the side mold core at the rear.

4. The workpiece forming die according to claim 1, characterized in that: The upper mold also includes a plurality of fixing parts. The first upper mold plate, the second upper mold plate and the third upper mold plate are arranged in sequence from top to bottom along the vertical direction. The first upper mold plate, the second upper mold plate and the third upper mold plate are connected as a whole through locking parts.

5. The workpiece forming die according to claim 1, characterized in that: The upper mold also includes a plurality of fixing plates and a plurality of locking pieces. The fixing plates are fixed to the third upper mold plate through fixing pieces, and the fixing plates limit the inclined guide columns.

6. The workpiece forming die according to claim 5, characterized in that: The upper end surface of the third upper template is provided with an installation groove corresponding to each group of inclined guide columns, and a clamping groove is provided at the bottom of the installation groove. The bottom surface of the third upper template is provided with an avoidance groove corresponding to each group of inclined guide columns. The third upper template is also provided with a plurality of through holes, and the through holes connect the clamping groove and the avoidance groove. The cross-section of the inclined guide column is T-shaped. During assembly, the upper end of the inclined guide column is clamped in the clamping groove, and the inclined guide column passes through the through holes and the avoidance groove and extends to the bottom of the third upper template. The fixing plate is installed in the installation groove through a fixing member.

7. The workpiece forming die according to claim 1, characterized in that: The utility model also comprises an ejection mechanism, which comprises an ejection plate and a plurality of ejector pins installed on the ejection plate, and the ejector pins pass through the lower template.

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