Injection mold with size-adjustable injection molding cavity

Abstract

The utility model provides an injection mold with an adjustable injection molding cavity size, which relates to the technical field of injection molds, and comprises a lower mold base and an upper mold base, the lower mold base comprises a pair of first sliding blocks, and two ends of the pair of first sliding blocks are respectively sleeved with a first clamping block and a second clamping block in a sliding manner; a first guide plate is slidably inserted between the bottom side of the first clamping block and the bottom side of the second clamping block, the upper die base comprises a pair of second sliding blocks, the two ends of the pair of second sliding blocks are sleeved with a third clamping block and a fourth clamping block respectively, and a second guide plate is slidably inserted between the upper side of the third clamping block and the upper side of the fourth clamping block. An injection molding opening is formed in the center of the upper end face of the second guide plate in an inserted mode, the two ends of the inner side of the first sliding block and the two ends of the inner side of the second sliding block are each provided with a pair of springs, and the other ends of the springs are connected with the inner walls of the first clamping block, the second clamping block, the third clamping block and the fourth clamping block correspondingly. According to the utility model, the adjustment of the size of the injection molding cavity of the injection mold can be effectively improved, and the practical value is higher.

Description

Technical Field

[0001] The utility model belongs to the technical field of injection molds, and more specifically, particularly relates to an injection mold with an adjustable injection cavity size. Background Art

[0002] With the development of the plastics industry, many new injection molding processes have been developed, such as foaming injection molding process, multi-component injection molding process, reaction injection molding process, exhaust injection molding process, gas-assisted injection molding process, vibration injection molding process, micro injection molding process, etc.

[0003] Based on the above, the inventors have found the following problems: most of the current injection molds are integrally formed, the size of the injection cavity of the injection mold cannot be adjusted, and different molds need to be replaced for use when injection molding different products, which greatly increases the production cost of the enterprise.

[0004] Therefore, in view of this, the existing structure and defects are studied and improved, and an injection mold with adjustable injection cavity size is provided, in order to achieve a more practical purpose. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides an injection mold with an injection cavity size adjustable to solve the problem that the injection cavity of the current injection mold is difficult to adjust.

[0006] The purpose and function of the injection mold with adjustable injection cavity size of the utility model are achieved by the following specific technical means:

[0007] An injection mold with an adjustable injection cavity size comprises a lower mold base and an upper mold base, the lower mold base comprises a pair of first sliders, the two ends of the pair of first sliders are respectively slidably provided with a first clamping block and a second clamping block, a first guide plate is slidably inserted between the bottom sides of the first clamping block and the second clamping block, the upper mold base comprises a pair of second sliders, the two ends of the pair of second sliders are respectively provided with a third clamping block and a fourth clamping block, a second guide plate is slidably inserted between the upper sides of the third clamping block and the fourth clamping block, and an injection port is inserted at the center of the upper end surface of the second guide plate.

[0008] Furthermore, a pair of springs are installed at both ends of the inner sides of the first sliding block and the second sliding block, and the other ends of the springs are respectively connected to the inner walls of the first clamping block, the second clamping block, the third clamping block and the fourth clamping block.

[0009] Furthermore, a pair of limiting rods are installed on one side of the upper end surface of the first clamping block and the second clamping block.

[0010] Furthermore, one side of the bottom end of the third clamping block and the fourth clamping block is provided with a positioning groove, and the positioning groove and the limiting rod are engaged with each other.

[0011] Furthermore, first mounting grooves are provided on the inner sides of the first clamping block and the second clamping block, and a lower mold core is mounted between the pair of the first mounting grooves.

[0012] Furthermore, the inner sides of the third clamping block and the fourth clamping block are both provided with second mounting grooves, and an upper mold core is mounted between a pair of the second mounting grooves.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] 1. The injection mold with adjustable injection cavity size, by sleeve-arranging the first clamping block and the second clamping block at both ends of the first slider, the first clamping block and the second clamping block can be expanded along the first slider, so that the user can replace the lower mold core of different sizes for processing, by installing the first guide plate, the stability of the first clamping block and the second clamping block when they are expanded or closed is improved, by sleeve-arranging the second clamping block and the third clamping block at both ends of the second slider, the second clamping block and the third clamping block can be expanded along the second slider, so that the user can replace the upper mold core of different sizes for processing, by installing the second guide plate, the stability of the expansion or closing of the second clamping block and the third clamping block is improved, and by opening the injection port, the injection molding of the mold is convenient, and by adjusting the injection molding chamber, it is convenient to replace the mold core of different sizes, saving the production cost of the enterprise;

[0015] 2. This injection mold with adjustable injection cavity size installs a spring and utilizes the elastic force of the spring so that the first clamping block, the second clamping block, the third clamping block and the fourth clamping block can automatically retract after being unfolded, thereby clamping and fixing the upper mold core and the lower mold core, making it convenient for the user to adjust the size of the injection cavity, and by engaging the positioning groove and the limit rod with each other, the upper mold base and the lower mold base can be quickly closed. The utility model has a simple and reasonable structure, a novel design, and is simple and convenient to operate. It can effectively improve the adjustment of the injection cavity size of the injection mold and has a high practical value. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional schematic diagram of the utility model.

[0017] Figure 2 It is a three-dimensional unfolding schematic diagram of the utility model.

[0018] Figure 3 It is a bottom-up stereoscopic schematic diagram of the present invention.

[0019] Figure 4It is a side sectional schematic diagram of the utility model.

[0020] In the figure, the corresponding relationship between the component names and the figure numbers is as follows:

[0021] 1. Lower mold base; 2. Upper mold base; 3. First clamping block; 4. Second clamping block; 5. Third clamping block; 6. Fourth clamping block; 7. First guide plate; 8. Second guide plate; 9. First slider; 10. Second slider; 11. First mounting groove; 12. Limit rod; 13. Injection port; 14. Lower mold core; 15. Second mounting groove; 16. Upper mold core; 17. Positioning groove; 18. Spring. DETAILED DESCRIPTION

[0022] The following is a further detailed description of the implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0023] In the description of the present invention, unless otherwise specified, "multiple" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third" and the like are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0024] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] Example:

[0026] As attached Figure 1 To Attachment Figure 4 As shown:

[0027] The utility model provides an injection mold with adjustable injection cavity size, comprising a lower mold base 1 and an upper mold base 2, the lower mold base 1 comprising a pair of first sliders 9, the two ends of the pair of first sliders 9 are respectively slidably sleeved with a first clamping block 3 and a second clamping block 4, by sleeved the first clamping block 3 and the second clamping block 4 at the two ends of the first slider 9, so that the first clamping block 3 and the second clamping block 4 can be unfolded along the first slider 9, so that it is convenient for users to replace lower mold cores 14 of different sizes for processing, a first guide plate 7 is slidably inserted between the bottom sides of the first clamping block 3 and the second clamping block 4, and the stability of the first clamping block 3 and the second clamping block 4 when they are unfolded or closed is improved by installing the first guide plate 7, and the upper mold base 2 includes A pair of second sliders 10 are provided, and the two ends of the pair of second sliders 10 are respectively provided with a third clamping block 5 and a fourth clamping block 6. By providing the second clamping block 5 and the third clamping block 6 at the two ends of the second slider 10, the second clamping block 5 and the third clamping block 6 can be unfolded along the second slider 10, so as to facilitate the user to replace the upper mold core 16 of different sizes for processing. A second guide plate 8 is slidably inserted between the upper sides of the third clamping block 5 and the fourth clamping block 6, and an injection port 13 is inserted at the center of the upper end surface of the second guide plate 8. By installing the second guide plate 8, the stability of the second clamping block 5 and the third clamping block 6 in unfolding or closing is improved, and by opening the injection port 13, it is convenient to inject the mold.

[0028] Among them, a pair of springs 18 are installed at both ends of the inner side of the first slider 9 and the second slider 10, and the other ends of the springs 18 are respectively connected to the inner walls of the first clamping block 3, the second clamping block 4, the third clamping block 5 and the fourth clamping block 6. By installing the springs 18 and utilizing the elastic force of the springs 18, the first clamping block 3, the second clamping block 4, the third clamping block 5 and the fourth clamping block 6 can automatically retract after being unfolded, thereby clamping and fixing the upper mold core 16 and the lower mold core 14, making it convenient for the user to adjust the size of the injection chamber.

[0029] A pair of limiting rods 12 are installed on one side of the upper end surface of the first clamping block 3 and the second clamping block 4 .

[0030] Among them, a positioning groove 17 is opened on one side of the bottom end of the third clamping block 5 and the fourth clamping block 6, and the positioning groove 17 and the limiting rod 12 are engaged with each other. By engaging the positioning groove 17 and the limiting rod 12 with each other, the upper mold base 1 and the lower mold base 2 can be quickly closed.

[0031] Among them, the inner sides of the first clamping block 3 and the second clamping block 4 are both provided with a first installation groove 11, and a lower mold core 14 is clamped and installed between a pair of the first installation grooves 11. By setting the first installation grooves 11, the lower mold core 14 is conveniently clamped and replaced.

[0032] The inner sides of the third clamping block 5 and the fourth clamping block 6 are both provided with second mounting grooves 15 , and an upper mold core 16 is mounted between a pair of the second mounting grooves 15 . The second mounting grooves 15 are provided to facilitate replacement of the upper mold core 16 .

[0033] The specific usage and function of this embodiment are as follows:

[0034] When using this product, first check whether the internal mechanisms of the injection mold with adjustable injection cavity size are complete, and then install upper mold cores 16 and lower mold cores 14 of different sizes according to the requirements of products of different sizes, unfold the first clamping block 3, the second clamping block 4, the third clamping block 5 and the fourth clamping block 6 along the first slider 9 and the second slider 10 respectively, and then install the upper mold core 16 and the lower mold core 14 into the first installation groove 11 and the second installation groove 15 respectively, and then use the elasticity of the spring 18 to make the first clamping block 3 and the second clamping block 4, the third clamping block 5 and the fourth clamping block 6 quickly shrink, clamp and fix the upper mold core 16 and the lower mold core 14, and then quickly install the lower mold base 1 and the upper mold base 2. When the injection molding process is carried out, with the engagement between the limit rod 12 and the positioning groove 17, the upper mold base 2 and the lower mold base 1 are closed, and then the injection molding process is carried out through the injection port 13 set at the top of the second guide plate 8.

[0035] The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

Claims

1. An injection mold with an adjustable injection cavity size, comprising a lower mold base (1) and an upper mold base (2), characterized in that: The lower mold base (1) includes a pair of first sliders (9), and the two ends of the pair of first sliders (9) are respectively slidably mounted with a first clamping block (3) and a second clamping block (4), and a first guide plate (7) is slidably inserted between the bottom sides of the first clamping block (3) and the second clamping block (4). The upper mold base (2) includes a pair of second sliders (10), and the two ends of the pair of second sliders (10) are respectively mounted with a third clamping block (5) and a fourth clamping block (6), and a second guide plate (8) is slidably inserted between the upper sides of the third clamping block (5) and the fourth clamping block (6), and an injection port (13) is inserted at the center of the upper end surface of the second guide plate (8).

2. The injection mold with adjustable injection cavity size as claimed in claim 1, characterized in that: A pair of springs (18) are installed at both ends of the inner sides of the first slider (9) and the second slider (10), and the other ends of the springs (18) are respectively connected to the inner walls of the first clamping block (3), the second clamping block (4), the third clamping block (5) and the fourth clamping block (6).

3. The injection mold with adjustable injection cavity size as claimed in claim 1, characterized in that: A pair of limiting rods (12) are installed on one side of the upper end surface of the first clamping block (3) and the second clamping block (4).

4. The injection mold with adjustable injection cavity size as claimed in claim 3, characterized in that: A positioning groove (17) is provided on one side of the bottom end of the third clamping block (5) and the fourth clamping block (6), and the positioning groove (17) and the limiting rod (12) are mutually engaged.

5. The injection mold with adjustable injection cavity size as claimed in claim 1, characterized in that: A first mounting groove (11) is provided on the inner side of each of the first clamping block (3) and the second clamping block (4), and a lower mold core (14) is mounted between the pair of the first mounting grooves (11).

6. The injection mold with adjustable injection cavity size as claimed in claim 1, characterized in that: The inner sides of the third clamping block (5) and the fourth clamping block (6) are both provided with second mounting grooves (15), and an upper mold core (16) is mounted between a pair of the second mounting grooves (15).

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