Novel mold structure of plastic support buckle and machining method

Abstract

The invention discloses a novel mold structure of a plastic support buckle and a machining method, and relates to the technical field of injection molds, the novel mold structure comprises a buckle insert, a containing hole is formed in the middle of one end of the buckle insert, the containing hole is a tubular groove with a semicircular section, and the diameter of the semicircle coincides with the edge of the buckle insert; a plurality of sets of tree-shaped holes are further formed in the buckle insert, extend in the semi-circumferential direction, communicate with the containing hole and are gradually upward away from the containing hole. According to the integrated buckle insert, the insert of the structure can be integrally subjected to one-time electric discharge machining in a rotary electric discharge machining mode, the production efficiency is higher, breakage and dislocation caused by splicing of a plurality of inserts are avoided, the machining precision is high, and a mold of a novel structure produced through the machining mode is attractive in appearance, stable in size, few in bad defects and low in production cost. And meanwhile, the labor intensity is reduced, the product quality and the production efficiency are obviously improved, and the use requirements of automobiles in various severe environments are met.

Description

Technical Field

[0001] The invention belongs to the technical field of injection molds, and in particular relates to a novel mold structure and a processing method for a plastic bracket buckle. Background Art

[0002] A plastic bracket has a tree-shaped buckle at the bottom. This plastic bracket is widely used in new energy vehicle battery packs. The buckle glue is very thin and needs to be demolded forcibly. Conventional molds take into account the traditional processing methods and injection molding processability of the mold. The mold structure needs to be made into a full-block structure. This mold structure requires multiple cavity inserts, which results in a large workload, a long processing cycle, and high processing costs. At the same time, product injection molding is prone to flash, the distance between the inserts is not thin enough, and the misalignment and dislocation of products with too many inserts are difficult to control. Summary of the invention

[0003] In view of the problems mentioned in the background technology, the purpose of the present invention is to provide a new mold structure and processing method for a plastic bracket buckle to solve the problems mentioned in the background technology.

[0004] The above technical objectives of the present invention are achieved through the following technical solutions:

[0005] A novel mold structure and processing method for a plastic bracket clip include a clip insert, a receiving hole is provided in the middle of one end of the clip insert, the receiving hole is a tubular groove with a semicircular cross-section, and the diameter of the semicircle coincides with the edge of the clip insert, and a plurality of groups of tree-like holes are also provided on the clip insert, the tree-like holes extend along the circumference of the semicircle, the tree-like holes are all connected to the receiving hole, and the tree-like holes are gradually upward away from the receiving hole.

[0006] As a preferred technical solution, the distances between any two adjacent groups of tree-like holes are equal.

[0007] As a preferred technical solution, it includes a rotating electrode, on the output end of the rotating electrode are installed a plurality of groups of tree-like molds, the tree-like molds gradually rise away from the axis of the output end of the rotating electrode, the output end of the rotating electrode is close to one end of the snap insert, the rotating electrode rotates, the output end of the rotating electrode and the plurality of groups of tree-like molds are respectively processed into accommodating holes and tree-like holes on the snap insert in a manner of rotary discharge machining.

[0008] As a preferred technical solution, the distances between any two adjacent groups of tree-like modules are equal.

[0009] As a preferred technical solution, a plurality of groups of tree-shaped modules are distributed along the length direction of the output end of the rotating electrode.

[0010] As an optimal technical solution, it includes a lower mold, and two groups of mold cavities are opened on the upper surface of the lower mold. Two groups of sliding parts are installed at both ends of each group of mold cavities. The sliding parts include sliding block 1 and sliding block 2 sliding in the horizontal direction. The opposite surfaces of sliding block 1 and sliding block 2 are installed with snap-in inserts and the mold cavity is opened between sliding block 1 and sliding block 2.

[0011] As an optimal technical solution, there is also an upper mold, which is equipped with an injection port, and a pressure die is symmetrically installed on the lower surface of the upper mold about the diameter of the injection port. The injection port runs through the upper mold and the pressure die, and two groups of guide cavities are correspondingly opened on the upper mold and the lower mold, and the input ends of the two groups of guide cavities are connected to the injection port, and the output ends of the two groups of guide cavities are connected to the adjacent mold cavities.

[0012] As an optimal technical solution, a guide groove is provided at one end of the sliding block 2 away from the mold cavity, and the guide groove gradually moves away from the mold cavity from top to bottom. A push-pull member is fixedly installed on the lower surface of the die, and both sides of the push-pull member are inclined blocks that gradually move away from the sliding block 2 downward. The two sides of the push-pull member are respectively slidably connected to the guide grooves of the two groups of sliding blocks 2.

[0013] As a preferred technical solution, a group of guiding oblique columns are respectively installed at the four corners of the lower surface of the upper mold, and the guiding oblique columns respectively pass through the sliding block one and the guiding oblique columns gradually move downward away from the central axis of the upper mold.

[0014] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A three-dimensional structural diagram of a new mold structure of a plastic bracket buckle proposed by the present invention;

[0016] Figure 2 This is a front view of a new mold structure of a plastic bracket buckle proposed by the present invention;

[0017] Figure 3 A three-dimensional structure of a plastic bracket mold structure proposed by the present invention Figure 1 ;

[0018] Figure 4 A front view of a plastic bracket mold structure proposed by the present invention;

[0019] Figure 5 For the present invention Figure 4 Cross-sectional view along AA direction;

[0020] Figure 6 A partial diagram of a plastic bracket mold structure proposed by the present invention;

[0021] Figure 7 For the present invention Figure 6An enlarged view of point B.

[0022] Figure numerals: 1. snap-on insert; 11. tree-shaped hole; 12. accommodating hole; 2. rotating electrode; 21. tree-shaped mold; 3. supporting member; 4. lower mold; 41. sliding block one; 42. sliding block two; 43. mold cavity; 44. guide cavity; 5. upper mold; 51. push-pull member; 52. guiding inclined column; 53. die; 54. injection port. DETAILED DESCRIPTION

[0023] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar symbols throughout represent the same or similar elements or elements with the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0024] Example 1

[0025] refer to Figure 1 to Figure 2 The novel mold structure of a plastic bracket buckle described in this embodiment includes a buckle insert 1, a receiving hole 12 is opened in the middle of one end of the buckle insert 1, and the receiving hole 12 is a tubular groove with a semicircular cross-section and the diameter of the semicircle coincides with the edge of the buckle insert 1. The buckle insert 1 also has multiple groups of tree-like holes 11, which extend along the circumference of the semicircle. The tree-like holes 11 are all connected with the receiving hole 12 and the tree-like holes 11 are gradually upward away from the receiving hole 12.

[0026] Preferably, the distances between any two adjacent groups of tree-like holes 11 are equal.

[0027] The receiving hole 12 and the plurality of tree-shaped holes 11 form an injection mold structure of the bracket buckle.

[0028] Example 2

[0029] refer to Figure 1 to Figure 2 The embodiment of the present invention provides a novel mold structure processing method for a plastic bracket buckle, including a rotating electrode 2, on the output end of which a plurality of tree-like molds 21 are installed, the tree-like molds 21 gradually rise away from the axis of the output end of the rotating electrode 2, the output end of the rotating electrode 2 is close to one end of the buckle insert 1, the rotating electrode 2 rotates, and the output end of the rotating electrode 2 and the plurality of tree-like molds 21 are respectively processed into a receiving hole 12 and a tree-like hole 11 on the buckle insert 1 by means of rotary discharge machining.

[0030] Preferably, the distances between any two adjacent groups of tree-like modules 21 are equal.

[0031] Preferably, the plurality of groups of tree-shaped patterns 21 are distributed along the length direction of the output end of the rotating electrode 2 .

[0032] The integral snap-in insert 1 can be processed by rotary discharge machining to complete the entire structural insert at one time, which has higher production efficiency, avoids the dislocation caused by the splicing of multiple inserts, and has high processing accuracy. The new structural mold produced by this processing method has beautiful appearance, stable size, and few defects. At the same time, it reduces labor intensity, significantly improves product quality and production efficiency, and meets the use requirements of automobiles in various harsh environments. It is easy to process and low in cost. The thickness of the tree-shaped mold 21 is less than that of the traditional spliced ​​mold structure, with high precision and not easy to produce flash.

[0033] Example 3

[0034] refer to Figures 3 to 7 The injection mold structure of a plastic bracket described in this embodiment includes a support member 3, a lower mold 4 and an upper mold 5. The lower mold 4 is fixedly installed above the support member 3. Two groups of mold cavities 43 and two groups of guide cavities 44 are opened on the upper surface of the lower mold 4. The output end of the guide cavity 44 is connected with the adjacent mold cavity 43. Two groups of sliding members are respectively installed at both ends of each group of mold cavities 43. The sliding members include a sliding block 1 41 and a sliding block 2 42 sliding in the horizontal direction. The opposite surfaces of the sliding block 1 41 and the sliding block 2 42 are both installed with a snap-on insert 1, and the mold cavity 43 is opened between the sliding block 1 41 and the sliding block 2 42. The sliding block 2 42 is opened at one end away from the mold cavity 43 with a guide groove, and the guide groove gradually moves away from the mold cavity 4 from top to bottom. 3; An injection port 54 is installed on the upper mold 5, and a die 54 is installed symmetrically on the lower surface of the upper mold 5 about the diameter of the injection port 54. The injection port 54 runs through the upper mold 5 and the die 53. The input ends of the two groups of guide cavities 44 are connected to the injection port 54. The lower surface of the die 54 is correspondingly provided with a mold cavity 43 and a guide cavity 44. A group of guiding inclined columns 52 are respectively installed at the four corners of the lower surface of the upper mold 5. The guiding inclined columns 52 respectively pass through the sliding block 1 41 and the guiding inclined columns 52 gradually move downward away from the central axis of the upper mold 5. A push-pull member 51 is fixedly installed on the lower surface of the die 54. Both sides of the push-pull member 51 are inclined blocks that gradually move downward away from the sliding block 2 42. Both sides of the push-pull member 51 are slidably connected with the guide grooves of the two groups of sliding blocks 2 42.

[0035] Working principle: sliding block 1 41 and sliding block 2 42 approach each other until the two groups of buckle inserts 1 contact to form a complete buckle injection cavity, and the raw slurry is injected from the injection port 54 into the guide cavity 44 and input into the mold cavity 43 to complete the injection molding. After the injection molding is completed, the upper mold 5 moves up, driving the push-pull member 51, the guiding inclined column 52 and the pressing mold 53 to rise, and the push-pull member 51 drives the two groups of sliding blocks 2 42 to approach each other through the guide groove, and the guiding inclined column 52 drives the sliding block 1 41 to slide to the outside of the lower mold 4, that is, the two opposite groups of buckle inserts 1 on the sliding block 1 41 and the sliding block 2 42 move away from each other, which is convenient for the demolding of the bracket.

[0036] It should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0037] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0038] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0039] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0040] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A novel mold structure for a plastic bracket buckle, comprising a buckle insert (1), characterized in that: A receiving hole (12) is provided in the middle of one end of the buckle insert (1). The receiving hole (12) is a tubular groove with a semicircular cross section and the diameter of the semicircle coincides with the edge of the buckle insert (1). The buckle insert (1) is also provided with a plurality of groups of tree-like holes (11). The tree-like holes (11) extend along the circumference of the semicircle. The tree-like holes (11) are all connected to the receiving hole (12) and the tree-like holes (11) are gradually upward away from the receiving hole (12).

2. The novel mold structure of the plastic bracket buckle according to claim 1 is characterized in that: The distances between any two adjacent groups of tree-like holes (11) are equal.

3. The novel mold structure processing method of the plastic bracket buckle according to claim 1 is characterized in that: The invention comprises a rotating electrode (2), wherein a plurality of groups of tree-shaped molds (21) are installed on the output end of the rotating electrode (2), wherein the tree-shaped molds (21) gradually rise away from the axis of the output end of the rotating electrode (2), and the output end of the rotating electrode (2) is closely attached to one end of a buckle insert (1). The rotating electrode (2) rotates, and the output end of the rotating electrode (2) and the plurality of groups of tree-shaped molds (21) are respectively processed into a receiving hole (12) and a tree-shaped hole (11) on the buckle insert (1) by a rotary electrical discharge machining method.

4. The novel mold structure processing method of the plastic bracket buckle according to claim 3 is characterized in that: The distance between any two adjacent groups of tree-like modules (21) is equal.

5. The novel mold structure processing method of the plastic bracket buckle according to claim 3 is characterized in that: A plurality of groups of tree-shaped modules (21) are distributed along the length direction of the output end of the rotating electrode (2).

6. The novel mold structure processing method of the plastic bracket buckle according to claim 1 is characterized in that: The invention comprises a lower mold (4), the upper surface of which is provided with two groups of mold cavities (43), two groups of sliding members are respectively installed at the two ends of each group of mold cavities (43), the sliding members comprising a first sliding block (41) and a second sliding block (42) which slide in a horizontal direction, the opposing surfaces of the first sliding block (41) and the second sliding block (42) are both provided with snap-fit ​​inserts (1), and the mold cavity (43) is opened between the first sliding block (41) and the second sliding block (42).

7. The novel mold structure and processing method of the plastic bracket buckle according to claim 6 is characterized in that: The upper mold (5) is provided with an injection port (54), and a compression mold (54) is symmetrically provided on the lower surface of the upper mold (5) about the diameter of the injection port (54). The injection port (54) passes through the upper mold (5) and the compression mold (53). Two groups of guide cavities (44) are correspondingly provided on the upper mold (5) and the lower mold (4). The input ends of the two groups of guide cavities (44) are both connected to the injection port (54), and the output ends of the two groups of guide cavities (44) are connected to the adjacent mold cavity (43).

8. The novel mold structure and processing method of the plastic bracket buckle according to claim 6 is characterized in that: A guide groove is provided at one end of the sliding block 2 (42) away from the mold cavity (43), and the guide groove gradually moves away from the mold cavity (43) from top to bottom. A push-pull member (51) is fixedly installed on the lower surface of the die (54), and both sides of the push-pull member (51) are inclined blocks that gradually move away from the sliding block 2 (42) downward. Both sides of the push-pull member (51) are slidably connected to the guide grooves of the two groups of sliding blocks 2 (42) respectively.

9. The novel mold structure and processing method of the plastic bracket buckle according to claim 6 is characterized in that: A group of guiding oblique columns (52) are respectively installed at the four corners of the lower surface of the upper mold (5), and the guiding oblique columns (52) respectively pass through the sliding block 1 (41) and the guiding oblique columns (52) gradually move away from the central axis of the upper mold (5) downward.

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