Insert interchanging structure for injection mold

Abstract

The invention belongs to the technical field of injection molds, and discloses an injection mold insert interchanging structure which comprises an insert, a mounting groove is formed in the outer wall of the insert, a first sliding groove is formed in the outer wall of the insert, a second sliding groove is formed in the outer wall of the insert, and the mounting groove communicates with the first sliding groove and the second sliding groove. The first sliding groove and the second sliding groove are parallel to each other, a connecting column is inserted into the inner wall of the mounting groove, a first inserting plate is inserted into the inner wall of the first sliding groove, a first clamping block is fixedly connected to the end of the first inserting plate, a second inserting plate is inserted into the inner wall of the second sliding groove, and a second clamping block is fixedly connected to the end of the second inserting plate. And the first clamping block and the second clamping block are respectively clamped and matched with the connecting column. According to the device, the first inserting plate, the connecting column and the second inserting plate are fixed through the bolts, the problem that connection between the insert and the mold body is not stable is solved, and influences on the overall operation stability of the mold and the product machining precision are avoided.

Description

Technical Field

[0001] The invention relates to the field of injection molds, and more particularly to an insert interchange structure for injection molds. Background Art

[0002] Molds, as core tools in industrial production, are widely used in a variety of manufacturing processes such as injection molding, blow molding, extrusion, die casting, forging, smelting and stamping to accurately shape various products. In short, the mold is the cornerstone of the molding process. It is assembled from a series of precision parts. Different molds are cleverly matched with different parts according to their specific functional requirements. The working principle of the mold is to give the product the required shape and size by changing the physical state of the molding material, such as melting, compression or stretching. In hot runner mold technology, the application of insert structure is particularly critical. Hot runner molds significantly improve production efficiency and product quality by maintaining the continuous flow of molten plastic.

[0003] However, in the existing hot runner mold insert interchangeable structure, the connection between the insert and the mold body has an instability problem, which affects the overall operation stability of the mold and the product processing accuracy. In view of this, we propose an injection mold insert interchangeable structure. Summary of the invention

[0004] The present application aims to solve at least one of the technical problems existing in the prior art. To this end, the present application proposes an insert interchange structure for injection molds to solve the problem of unstable connection between the insert and the mold body, thereby avoiding affecting the overall operation stability of the mold and the product processing accuracy.

[0005] An insert interchange structure for an injection mold comprises an insert, an outer wall of the insert is provided with a mounting groove, an outer wall of the insert is provided with a first slide groove, and an outer wall of the insert is provided with a second slide groove; The mounting groove is connected to the first slide groove and the second slide groove, and the first slide groove and the second slide groove are parallel to each other; A connecting column is inserted into the inner wall of the installation groove, a first plug plate is inserted into the inner wall of the first slide groove, a first clamping block is fixedly connected to the end of the first plug plate, a second plug plate is inserted into the inner wall of the second slide groove, a second clamping block is fixedly connected to the end of the second plug plate, and the first clamping block and the second clamping block are respectively engaged with the connecting column; Bolts are installed on the inner wall of the insert, and the bottoms of the bolts pass through the first plug plate and the second plug plate respectively.

[0006] Preferably, the connecting column comprises an extending portion and a connecting portion, the extending portion and the connecting portion are an integrally formed structure, both sides of the outer wall of the connecting portion are provided with card slots, and the outer wall of the connecting portion is provided with a docking hole.

[0007] Preferably, the corner at the bottom of one end of the first card block extends into the installation groove, the corner at the bottom of one end of the first card block is snap-fitted with the card slot, the corner at the top of one end of the first card block abuts against the inner wall of the first slide groove, the corner at the top of one end of the second card block extends into the installation groove, the corner at the top of one end of the second card block is snap-fitted with the card slot, and the corner at the bottom of one end of the second card block abuts against the inner wall of the second slide groove.

[0008] Preferably, a receiving groove is provided at the top of the insert, a threaded groove is provided at the bottom of the inner wall of the receiving groove, a third slide groove is provided at the bottom of the inner wall of the threaded groove, and the third slide groove passes through the first slide groove, the mounting groove and the second slide groove and extends to below them.

[0009] Preferably, the bolt comprises a rotating head, a threaded column and a positioning rod, the top of the threaded column is fixedly connected to the rotating head, and the bottom of the threaded column is fixedly connected to the positioning rod.

[0010] Preferably, a first plug hole is provided on the outer wall of the first plug plate, a limiting groove is provided on the inner wall of the first plug hole, a second plug hole is provided on the outer wall of the second plug plate, the rotating head is located inside the storage groove, the threaded column is threadedly connected to the threaded groove, the positioning rod is slidably connected to the third sliding groove, the positioning rod passes through the docking hole, the first plug hole and the second plug hole and is slidably connected thereto, and the bottom of the threaded column is snap-fitted with the limiting groove.

[0011] Preferably, a rotatable ball is embedded in the bottom of the positioning rod, an embedding groove is opened at the bottom of the inner wall of the third sliding groove, and the ball is clamped with the inner wall of the embedding groove.

[0012] Preferably, the outer wall of the insert is provided with two sliding holes, the inner walls of the sliding holes are fixedly connected with sliding rods, the outer walls of the sliding rods are sleeved with springs, the outer walls of the first plug plate and the second plug plate are fixedly connected with extension rods, the ends of the extension rods are respectively along the sliding holes, the ends of the sliding rods pass through the extension rods and are slidably connected with the extension rods, one end of the spring is fixedly connected to the inner wall of the insert, and the other end of the spring is fixedly connected to the extension rod.

[0013] Preferably, the outer wall of the insert is fixedly connected to a connecting shaft, the outer wall of the connecting shaft is rotatably connected to a rotating ring, the outer wall of the rotating ring is fixedly connected to two rotating arms, and the outer wall of the rotating arm located above is fixedly connected to a shift block.

[0014] Preferably, a first inclined surface is formed at one end of the first plug plate, and a second inclined surface is formed at one end of the second plug plate, and the first inclined surface and the second inclined surface are parallel to two sides of the insert respectively.

[0015] Compared with the prior art, the present invention has the following beneficial effects: The first plug plate moves along the first slide groove into the insert, the second plug plate moves along the second slide groove into the insert, the rotating head is turned to make the threaded column screw into the threaded groove, and the positioning rod slides along the third slide groove into the insert. At this time, the positioning rod passes through the first plug plate, the connecting column and the second plug plate until the ball is stuck in the embedded groove, thereby fixing the first plug plate, the connecting column and the second plug plate, solving the problem of unstable connection between the insert and the mold body, and avoiding affecting the overall operation stability of the mold and the product processing accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the implementation methods of the present application, the drawings required for use in the implementation methods will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the internal installation structure of the insert of the present invention; Figure 3 It is a schematic diagram of the internal structure of the insert of the present invention; Figure 4 It is a schematic diagram of the internal partial structure of the insert of the present invention; Figure 5 It is a schematic diagram of the outer wall structure of the insert of the present invention; Figure 6 It is a schematic diagram of the overall structure of the connecting column of the present invention; Figure 7 It is a schematic diagram of the installation structure of the rotating arm of the present invention; Figure 8 It is a schematic diagram of the structure of the first plugboard and the second plugboard of the present invention; Fig. 9 It is a schematic diagram of the installation structure of the threaded column of the present invention.

[0018] Explanation of the numbers in the figure: 1. insert; 101. mounting groove; 102. first slide groove; 103. second slide groove; 104. third slide groove; 105. embedded groove; 106. storage groove; 107. threaded groove; 108. slide hole; 2. connecting shaft; 3. rotating ring; 4. rotating arm; 5. shift block; 6. extension rod; 7. slide rod; 8. spring; 9. connecting column; 901. extension part; 902. connecting part; 903. slot; 904. docking hole; 10. first plug plate; 11. first plug hole; 12. limiting slot; 13. first inclined surface; 14. first block; 15. second plug plate; 16. second plug hole; 17. second inclined surface; 18. second block; 19. rotating head; 20. threaded column; 21. positioning rod; 22. ball bearing. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solution and advantages of the implementation mode of the present application clearer, the technical solution in the implementation mode of the present application will be clearly and completely described in combination with the drawings in the implementation mode of the present application. Obviously, the described implementation mode is a part of the implementation mode of the present application, not all the implementation modes. Based on the implementation mode in the present application, all other implementation modes obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application. The specific implementation modes of the present invention are described in detail in combination with the drawings in the specification.

[0020] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 6 and Figure 8 As shown, an insert interchange structure for injection molds includes an insert 1, an outer wall of the insert 1 is provided with a mounting groove 101, an outer wall of the insert 1 is provided with a first slide groove 102, and an outer wall of the insert 1 is provided with a second slide groove 103; The mounting groove 101 is connected to the first slide groove 102 and the second slide groove 103, and the first slide groove 102 and the second slide groove 103 are parallel to each other; A connecting column 9 is inserted into the inner wall of the installation groove 101, a first plug plate 10 is inserted into the inner wall of the first slide groove 102, a first clamping block 14 is fixedly connected to the end of the first plug plate 10, a second plug plate 15 is inserted into the inner wall of the second slide groove 103, a second clamping block 18 is fixedly connected to the end of the second plug plate 15, and the first clamping block 14 and the second clamping block 18 are respectively engaged with the connecting column 9; The first clamping block 14 and the second clamping block 18 are engaged with the connecting column 9 to ensure the stability of the insert 1 in the mold. This is not only simple and reliable, but also easy to operate, thereby improving the reliability and durability of the mold. Bolts are installed on the inner wall of the insert 1, and the bottom of the bolts penetrate the first plug plate 10 and the second plug plate 15 respectively; The insert 1 improves the interchangeability and flexibility of the mold through the design of the mounting groove 101, the first slide groove 102 and the second slide groove 103.

[0021] like Figure 6 As shown, the connecting column 9 includes an extension portion 901 and a connecting portion 902 , the extension portion 901 and the connecting portion 902 are an integrally formed structure, both sides of the outer wall of the connecting portion 902 are provided with a card slot 903 , and the outer wall of the connecting portion 902 is provided with a docking hole 904 .

[0022] like Figure 4 and Figure 8 As shown, the corner at the bottom of one end of the first block 14 extends into the installation groove 101, and the corner at the bottom of one end of the first block 14 is snap-fitted with the slot 903, and the corner at the top of one end of the first block 14 abuts against the inner wall of the first slide groove 102, and the corner at the top of one end of the second block 18 extends into the installation groove 101, and the corner at the top of one end of the second block 18 is snap-fitted with the slot 903, and the corner at the bottom of one end of the second block 18 abuts against the inner wall of the second slide groove 103.

[0023] like Figure 4 As shown, a receiving groove 106 is provided at the top of the insert 1, a threaded groove 107 is provided at the bottom of the inner wall of the receiving groove 106, a third slide groove 104 is provided at the bottom of the inner wall of the threaded groove 107, and the third slide groove 104 passes through the first slide groove 102, the installation groove 101 and the second slide groove 103 and extends to the bottom thereof.

[0024] like Fig. 9 As shown, the bolt includes a rotating head 19 , a threaded column 20 and a positioning rod 21 . The top of the threaded column 20 is fixedly connected to the rotating head 19 , and the bottom of the threaded column 20 is fixedly connected to the positioning rod 21 .

[0025] like Figure 4 and Figure 8 As shown, the first plug plate 10 has a first plug hole 11 on its outer wall, a limiting groove 12 on its inner wall, the second plug plate 15 has a second plug hole 16 on its outer wall, the rotating head 19 is located inside the receiving groove 106, the threaded column 20 is threadedly connected to the threaded groove 107, the positioning rod 21 is slidably connected to the third sliding groove 104, the positioning rod 21 passes through the docking hole 904, the first plug hole 11 and the second plug hole 16 and is slidably connected thereto, and the bottom of the threaded column 20 is snap-fitted with the limiting groove 12; The threaded connection between the bolt threaded column 20 and the threaded groove 107, and the sliding connection between the positioning rod 21 and the third sliding groove 104, the first socket 11 and the second socket 16, achieve fast and accurate installation, simplify the installation process and improve work efficiency.

[0026] like Figure 1 , Figure 2 , Figure 3 Figure 4 , Figure 6 and Figure 8 As shown, a rotatable ball 22 is embedded at the bottom of the positioning rod 21 , an embedding groove 105 is opened at the bottom of the inner wall of the third sliding groove 104 , and the ball 22 is clamped with the inner wall of the embedding groove 105 .

[0027] like Figure 4 , Figure 5 and Fig. 9 As shown, the outer wall of the insert 1 is provided with two sliding holes 108, the inner walls of the sliding holes 108 are fixedly connected with the sliding rod 7, the outer walls of the sliding rod 7 are sleeved with a spring 8, the outer walls of the first plug plate 10 and the second plug plate 15 are fixedly connected with the extension rod 6, the ends of the extension rod 6 are respectively along the sliding holes 108, the ends of the sliding rod 7 pass through the extension rod 6 and are slidably connected therewith, one end of the spring 8 is fixedly connected to the inner wall of the insert 1, and the other end of the spring 8 is fixedly connected to the extension rod 6; The combined design of the spring 8 and the slide bar 7 enables the first plug plate 10 and the second plug plate 15 to automatically reset after being disassembled, which is convenient for next use, which not only improves the convenience of operation but also prolongs the service life of the mold.

[0028] like Figure 7 As shown, the outer wall of the insert 1 is fixedly connected to a connecting shaft 2, the outer wall of the connecting shaft 2 is rotatably connected to a rotating ring 3, the outer wall of the rotating ring 3 is fixedly connected to two rotating arms 4, and the outer wall of the rotating arm 4 located at the top is fixedly connected to a shifting block 5.

[0029] like Figure 7 As shown, a first inclined surface 13 is formed at one end of the first plug plate 10 , and a second inclined surface 17 is formed at one end of the second plug plate 15 . The first inclined surface 13 and the second inclined surface 17 are parallel to two sides of the insert 1 , respectively.

[0030] Working principle: when the connecting column 9 needs to be connected, the push block 5 drives the rotating arm 4 to move, and the rotating arm 4 drives the rotating ring 3 to rotate around the connecting shaft 2. When the rotating arm 4 rotates, it squeezes the extension rod 6, so that the extension rod 6 slides along the inner wall of the sliding hole 108, and at the same time, the extension rod 6 slides along the outer wall of the sliding rod 7, and the first plug plate 10 and the second plug plate 15 are driven to move by the extension rod 6, so that the first plug plate 10 slides along the inner wall of the first sliding groove 102, and the second plug plate 15 slides along the inner wall of the second sliding groove 103, until the first block 14 on the first plug plate 10 and the second block 18 on the second plug plate 15 are respectively moved out of the installation groove 101; Insert the connecting portion 902 of the connecting column 9 into the mounting groove 101 on the insert 1; The shift block 5 is released, and under the elastic force of the spring 8, the extension rod 6 drives the first plug plate 10 and the second plug plate 15 to move respectively, the first plug plate 10 moves along the first slide groove 102 into the insert 1, and the second plug plate 15 moves along the second slide groove 103 into the insert 1, until the first clamping block 14 and the second clamping block 18 are respectively clamped into the clamping groove 903 on the connecting column 9, so that the connecting column 9 can be fixed; The rotating head 19 is rotated to make the threaded column 20 screw into the thread groove 107, and the positioning rod 21 slides into the insert 1 along the third slide groove 104. At this time, the positioning rod 21 passes through the first plug plate 10, the connecting column 9 and the second plug plate 15 until the ball 22 is stuck in the embedding groove 105, thereby fixing the first plug plate 10, the connecting column 9 and the second plug plate 15, solving the problem of unstable connection between the insert 1 and the mold body, and avoiding affecting the overall operation stability of the mold and the product processing accuracy.

[0031] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not intended to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. An insert interchange structure for an injection mold, comprising an insert (1), characterized in that: The outer wall of the insert (1) is provided with a mounting groove (101), the outer wall of the insert (1) is provided with a first sliding groove (102), and the outer wall of the insert (1) is provided with a second sliding groove (103); The mounting groove (101) is connected to the first sliding groove (102) and the second sliding groove (103), and the first sliding groove (102) and the second sliding groove (103) are parallel to each other; A connecting column (9) is inserted into the inner wall of the installation groove (101), a first plug plate (10) is inserted into the inner wall of the first slide groove (102), a first clamping block (14) is fixedly connected to the end of the first plug plate (10), a second plug plate (15) is inserted into the inner wall of the second slide groove (103), a second clamping block (18) is fixedly connected to the end of the second plug plate (15), and the first clamping block (14) and the second clamping block (18) are respectively engaged with the connecting column (9); Bolts are installed on the inner wall of the insert (1), and the bottoms of the bolts pass through the first plug plate (10) and the second plug plate (15) respectively.

2. The structure for interchangeable inserts of injection molds according to claim 1, characterized in that: The connecting column (9) comprises an extension portion (901) and a connecting portion (902); the extension portion (901) and the connecting portion (902) are an integrally formed structure; both sides of the outer wall of the connecting portion (902) are provided with a clamping groove (903); and the outer wall of the connecting portion (902) is provided with a docking hole (904).

3. The structure for interchangeable inserts of injection molds according to claim 2, characterized in that: The corner located at the bottom of one end of the first clamping block (14) extends into the installation groove (101), the corner located at the bottom of one end of the first clamping block (14) is snap-fitted with the clamping groove (903), the corner located at the top of one end of the first clamping block (14) abuts against the inner wall of the first slide groove (102), the corner located at the top of one end of the second clamping block (18) extends into the installation groove (101), the corner located at the top of one end of the second clamping block (18) is snap-fitted with the clamping groove (903), and the corner located at the bottom of one end of the second clamping block (18) abuts against the inner wall of the second slide groove (103).

4. The insert interchange structure for injection mold according to claim 3, characterized in that: The top of the insert (1) is provided with a receiving groove (106), the bottom of the inner wall of the receiving groove (106) is provided with a threaded groove (107), the bottom of the inner wall of the threaded groove (107) is provided with a third sliding groove (104), and the third sliding groove (104) passes through the first sliding groove (102), the installation groove (101) and the second sliding groove (103) and extends below them.

5. The structure for interchangeable inserts of injection molds according to claim 4, characterized in that: The bolt comprises a rotating head (19), a threaded column (20) and a positioning rod (21); the top of the threaded column (20) is fixedly connected to the rotating head (19), and the bottom of the threaded column (20) is fixedly connected to the positioning rod (21).

6. The insert interchange structure for injection mold according to claim 5, characterized in that: The first plug plate (10) has a first plug hole (11) formed on its outer wall, a limiting groove (12) formed on its inner wall, and a second plug hole (16) formed on its outer wall. The rotating head (19) is located inside the receiving groove (106). The threaded column (20) is threadedly connected to the threaded groove (107). The positioning rod (21) is slidably connected to the third sliding groove (104). The positioning rod (21) passes through the docking hole (904), the first plug hole (11) and the second plug hole (16) and is slidably connected thereto. The bottom of the threaded column (20) is snap-fitted with the limiting groove (12).

7. The insert interchange structure for injection mold according to claim 6, characterized in that: A rotatable ball bearing (22) is embedded at the bottom of the positioning rod (21), an embedding groove (105) is provided at the bottom of the inner wall of the third sliding groove (104), and the ball bearing (22) is clamped with the inner wall of the embedding groove (105).

8. The insert interchange structure for injection mold according to claim 7, characterized in that: The insert (1) has two sliding holes (108) on its outer wall, the inner walls of the sliding holes (108) are fixedly connected with sliding rods (7), the outer walls of the sliding rods (7) are sleeved with springs (8), the outer walls of the first plug plate (10) and the second plug plate (15) are fixedly connected with extension rods (6), the ends of the extension rods (6) are respectively along the sliding holes (108), the ends of the sliding rods (7) pass through the extension rods (6) and are slidably connected thereto, one end of the spring (8) is fixedly connected to the inner wall of the insert (1), and the other end of the spring (8) is fixedly connected to the extension rod (6).

9. The structure for interchangeable inserts of injection molds according to claim 8, characterized in that: The outer wall of the insert (1) is fixedly connected to a connecting shaft (2), the outer wall of the connecting shaft (2) is rotatably connected to a rotating ring (3), the outer wall of the rotating ring (3) is fixedly connected to two rotating arms (4), and the outer wall of the rotating arm (4) located above is fixedly connected to a shifting block (5).

10. The insert interchange structure for injection mold according to claim 9, characterized in that: A first inclined surface (13) is formed at one end of the first insert plate (10), and a second inclined surface (17) is formed at one end of the second insert plate (15); the first inclined surface (13) and the second inclined surface (17) are respectively parallel to two sides of the insert (1).

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