Injection mold for machining automobile parts

Abstract

The injection mold for machining the automobile parts comprises a base, a lower mold base is fixedly installed at the top of the base, an injection mold cavity is formed in the lower mold base, an injection mold plate is installed in the injection mold cavity in a clamped mode, and an ejection air cylinder is fixedly installed at the bottom of the injection mold plate; limiting columns are fixedly installed on the periphery of the top of the base, and a top plate is fixedly installed at the upper ends of the limiting columns. According to the injection mold, by arranging the fence, injection molding materials can be effectively prevented from overflowing in the injection molding process, the sealing performance of the mold is improved, the product quality is guaranteed, rapid and efficient demolding can be achieved through the arrangement of the ejection air cylinder, the labor cost and the production time cost are reduced, and the upper mold base and the lifting plate are connected in a clamping mode through the clamping block and the positioning groove; and the extension spring is used for auxiliary fixing, connection is stable and reliable, mounting and dismounting are convenient, and maintenance and replacement of the mold are facilitated.

Description

Technical Field

[0001] The invention relates to the technical field of automobile parts processing, in particular to an injection mold for processing automobile parts. Background Art

[0002] In the current field of automotive parts injection molds, the upper mold base is a key component, and its replacement operation has a significant impact on the production process. The upper mold base and the lifting plate of traditional injection molds are mostly connected by welding, bolting and other methods. In actual production, although the welding method has a stable connection, once the upper mold base is worn or damaged and needs to be replaced, it takes a lot of time to cut and separate it, and it is easy to damage surrounding components such as the lifting plate, resulting in a significant increase in maintenance costs; although the bolt fastening method is relatively simple to disassemble, frequent disassembly can easily cause thread stripping, affecting connection reliability, and multiple disassembly and assembly is time-consuming and labor-intensive, reducing production efficiency. In addition, the connection structure of the upper mold base of some molds is complex, lacks convenient positioning and quick disassembly design, and it is difficult to meet the growing demand for efficient and low-cost production in the automotive manufacturing industry. Summary of the Invention

[0003] The object of the present invention is to provide an injection mold for processing automobile parts to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solution: an injection mold for processing automobile parts, comprising a base, a lower mold base is fixedly installed on the top of the base, an injection molding cavity is opened in the lower mold base, an injection mold plate is clamped and installed in the injection mold cavity, and an ejection cylinder is fixedly installed on the bottom of the injection mold plate, and limiting columns are fixedly installed on all sides of the top of the base, the upper end of the limiting columns is fixedly installed on the top plate, a hydraulic cylinder is fixedly installed on the top of the top plate, the output end of the hydraulic cylinder passes through the bottom of the top plate and is fixedly installed with a lifting plate, an upper mold base is installed on the bottom of the upper mold base, an injection module is installed on the bottom of the upper mold base, a movable cavity is opened in the interior of the upper mold base, a stretching block is installed in the interior of the movable cavity through a stretching spring, a positioning connecting plate is fixedly installed on the front end of the stretching block, a clamping block is fixedly installed on the upper end of the positioning connecting plate, and the rear end of the clamping block is clamped to the interior of the lifting plate.

[0005] As a preferred solution, sliding rods are longitudinally installed on both sides of the lower mold base, sliders are slidably installed on the outside of the sliding rods, and enclosures are fixedly installed on the outside of the sliders. The entire enclosure cover is arranged above the injection molding cavity, and the bottom of the rear end of the enclosure fits with the top of the lower mold base.

[0006] As a preferred solution, an adjustment plate is fixedly installed on the front side of the enclosure, and the lower end of the adjustment plate extends to the front side of the lower mold base and is connected via a tightening knob.

[0007] As a preferred solution, a threaded groove is provided in the middle of the front surface of the lower die base, and the locking end of the fastening knob connected to the lower end of the adjustment plate is located inside the threaded groove and is fastened.

[0008] As a preferred solution, legs are fixedly installed around the bottom of the base, a bearing plate is embedded in the inner side of the legs, and the top of the bearing plate is connected to the bottom of the ejection cylinder.

[0009] As a preferred solution, a positioning groove is provided inside the front end of the lifting plate, and the clamping block connected to the inner side of the upper end of the positioning connecting plate is clamped into the interior of the positioning groove and fastened.

[0010] As a preferred solution, both sides of the top of the injection mold cavity are provided with card slots, and the bottom of the injection mold plate is connected to the card slots via protrusions.

[0011] As a preferred solution, a through slot is provided in the middle of the base for the ejection cylinder to move, and the lower end of the ejection cylinder is located inside the through slot and is securely installed.

[0012] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention can effectively prevent the injection molding material from overflowing during the injection molding process by setting up a fence, thereby improving the sealing of the mold and ensuring product quality. The setting of the ejection cylinder can achieve fast and efficient demoulding, reducing labor costs and production time costs. The upper mold base and the lifting plate are connected by a clamping block and a positioning groove, and are assisted in fixing by a tension spring. The connection is stable and reliable, and it is easy to install and disassemble, which is beneficial to the maintenance and replacement of the mold.

[0013] 2. The present invention opens a threaded groove in the middle of the front side of the lower mold base, and the locking end of the fastening knob at the lower end of the adjustment plate is fastened thereto. This design realizes the accurate and firm fixation of the enclosure position. During the injection molding process, the mold will be subjected to the impact force brought by the high-pressure injection molding material and the vibration generated by the operation of the equipment. The tight engagement of the fastening knob and the threaded groove can ensure that the adjustment plate and the enclosure will not be displaced or loosened. Moreover, this connection method is easy to operate. The technician can quickly rotate the fastening knob to fine-tune the enclosure position according to the actual injection molding requirements to adapt to the injection molding of automotive parts of different sizes and shapes, effectively improving the versatility and production flexibility of the mold, while also reducing the risk of injection molding material leakage due to enclosure displacement, thereby ensuring product quality and production safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional diagram of the structure of the present invention; Figure 2 This is the main view of the structure of the present invention; Figure 3 It is a partial structural cross-sectional view of the present invention; Figure 4 This is a cross-sectional view of a local structure from another perspective of the present invention; Figure 5 This is a diagram showing the internal structure of the lower die base of the present invention; Figure 6 For the present invention Figure 3 A partial enlarged view of point A in the middle.

[0015] In the figure: 1. Base; 2. Lower mold base; 3. Injection mold cavity; 4. Support legs; 5. Loading plate; 6. Ejector cylinder; 7. Injection mold plate; 8. Limiting column; 9. Top plate; 10. Hydraulic cylinder; 11. Lifting plate; 12. Upper mold base; 13. Injection mold module; 14. Movable cavity; 15. Stretching block; 16. Positioning connecting plate; 17. Clamping block; 18. Stretching spring; 19. Slide rod; 20. Slider; 21. Enclosure; 22. Adjustment plate; 23. Tightening knob. DETAILED DESCRIPTION

[0016] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0017] Secondly, the term "one embodiment" or "embodiment" herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in various places throughout this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive of other embodiments.

[0018] Example 1: See also Figure 1 As shown, the present invention provides an injection mold for processing automobile parts, including a base 1, a lower mold base 2 is fixedly installed on the top of the base 1, an injection molding cavity 3 is opened inside the lower mold base 2, an injection molding plate 7 is clamped and installed inside the injection molding cavity 3, and an ejection cylinder 6 is fixedly installed on the bottom of the injection molding plate 7. Limiting columns 8 are fixedly installed on all four sides of the top of the base 1, a top plate 9 is fixedly installed on the upper end of the limiting columns 8, a hydraulic cylinder 10 is fixedly installed on the top of the top plate 9, and the output end of the hydraulic cylinder 10 passes through the bottom of the top plate 9 and is fixedly installed with a lifting plate 11, an upper mold base 12 is installed at the bottom of the lifting plate 11, an injection molding block 13 is installed at the bottom of the upper mold base 12, an active cavity 14 is opened inside the upper mold base 12, a stretching block 15 is installed inside the active cavity 14 through a tension spring 18, a positioning connecting plate 16 is fixedly installed on the front end of the stretching block 15, a clamping block 17 is fixedly installed on the upper end of the positioning connecting plate 16, and the rear end of the clamping block 17 is clamped to the inside of the lifting plate 11.

[0019] Example 2: Based on the first embodiment, the present invention is as follows Figure 2 As shown, it is disclosed that sliding rods 19 are longitudinally installed on both sides of the lower mold base 2, and a slider 20 is slidably installed on the outside of the sliding rod 19, and a fence 21 is fixedly installed on the outside of the slider 20. The fence 21 is entirely covered above the injection molding cavity 3, and the bottom of the rear end of the fence 21 fits with the top of the lower mold base 2; an adjustment plate 22 is fixedly installed on the front of the fence 21, and the lower end of the adjustment plate 22 extends to the front of the lower mold base 2 and is connected by a tightening knob 23.

[0020] Use Figure 1 In the technical solution shown, slide bars 19 are longitudinally installed on both sides of the lower mold base 2, and sliders 20 are slidably installed outside the slide bars 19. The sliders 20 fix the enclosure 21, and the enclosure 21 is entirely covered above the injection mold cavity 3. This structural design can form an effective barrier during the injection molding process, tightly surrounding the injection mold cavity 3, greatly preventing the injection molding material from overflowing, and effectively avoiding product quality defects caused by material leakage, such as uneven surface of parts, dimensional deviation and other problems. At the same time, it also reduces material waste, reduces production costs, and improves production efficiency and product qualification rate. The adjustment plate 22 fixed on the front of the enclosure 21 is connected by a fastening knob 23. This design allows the position of the enclosure 21 to be flexibly adjusted according to actual injection molding requirements. When producing automotive parts of different specifications and shapes, technicians can easily adjust the enclosure 21 to adapt to injection molding cavities 3 of different sizes, ensuring that the enclosure 21 can always provide good protection for the injection molding cavity 3.

[0021] Secondly, in the technical solution, a threaded groove is opened in the middle of the front side of the lower mold base 2, and the locking end of the fastening knob 23 connected to the lower end of the adjusting plate 22 is located inside the threaded groove and is fastened; the bottom of the base 1 is fixedly installed with support legs 4 all around, and the inner side of the support legs 4 is embedded with a supporting plate 5, and the top of the supporting plate 5 is connected to the bottom of the ejection cylinder 6.

[0022] It uses Figure 1In the technical solution shown, a threaded groove is provided in the middle of the front of the lower mold base 2, and the locking end of the fastening knob 23 at the lower end of the adjusting plate 22 is fastened thereto. This design realizes the accurate and firm fixation of the position of the enclosure 21. During the injection molding process, the mold will be subjected to the impact force brought by the high-pressure injection molding material and the vibration generated by the operation of the equipment. The tight engagement of the fastening knob 23 with the threaded groove can ensure that the adjusting plate 22 and the enclosure 21 will not be displaced or loosened. Moreover, this connection method is easy to operate. Technicians can quickly rotate the fastening knob 23 to fine-tune the position of the enclosure 21 according to actual injection molding requirements to adapt to the injection molding of automotive parts of different sizes and shapes, effectively improving the versatility and production flexibility of the mold, while also reducing the risk of injection molding material leakage due to displacement of the enclosure 21, thereby ensuring product quality and production safety.

[0023] Example 3: The present invention Figures 1-6 As shown, a positioning groove is provided inside the front end of the lifting plate 11, and the clamping block 17 connected to the inner side of the upper end of the positioning connecting plate 16 is clamped into the inside of the positioning groove and fastened; clamping grooves are provided on both sides of the top of the injection molding cavity 3, and the bottom of the injection molding plate 7 is connected to the clamping grooves through a protrusion; a through groove is provided in the middle of the base 1 for the ejection cylinder 6 to move, and the lower end of the ejection cylinder 6 is located inside the through groove and is fastened.

[0024] By adopting the above technical solution, a positioning groove is provided inside the front end of the lifting plate 11, and the upper mold base 12 is fastened thereto by the clamping block 17 on the positioning connecting plate 16. This design realizes the rapid and accurate installation and firm connection of the upper mold base 12 and the lifting plate 11. During the injection molding process, the mold will be subjected to external forces such as injection pressure and equipment vibration. The close cooperation between the clamping block 17 and the positioning groove can effectively prevent the upper mold base 12 from displacement or loosening, thereby ensuring injection molding accuracy and product quality. At the same time, compared with traditional bolt connection methods, the clamping structure does not require the aid of complex tools when disassembling. It only needs to overcome the elastic force of the tension spring 18 to disengage the clamping block 17 from the positioning groove, so that the upper mold base 12 can be quickly disassembled, which greatly shortens the time for mold maintenance and replacement, improves production efficiency, and reduces equipment downtime costs. Slots are set on both sides of the top of the injection mold cavity 3, and the bottom of the injection mold plate 7 is connected to it through a protrusion. This structure significantly improves the convenience of installing and disassembling the injection mold plate 7. In the injection molding production of automobile parts, different parts may require different injection mold plates 7. The clamping method of the slots and the protrusions makes the injection mold plate 7 more accurately reset in the injection mold cavity 3, ensuring the dimensional accuracy of the mold cavity during the injection molding process, thereby improving the molding quality of the product.

[0025] The working principle of the present invention is as follows: before injection molding, the position of the enclosure 21 on the slide bar 19 is adjusted by the adjustment plate 22 and the tightening knob 23 according to the injection molding requirements, so that the enclosure 21 is entirely covered above the injection molding cavity 3, and ensure that the bottom of the rear end of the enclosure 21 is in contact with the top of the lower mold base 2, and then the tightening knob 23 is tightened to fix the position of the enclosure 21. During injection molding, the hydraulic cylinder 10 is started, and the hydraulic cylinder 10 pushes the lifting plate 11 downward, thereby driving the upper mold base 12 and the injection die plate 13 to move downward, and cooperate with the injection molding cavity 3 of the lower mold base 2 to form a closed injection molding space for injection molding operation. After the injection molding is completed, the hydraulic cylinder 10 is started to lift the upper mold base 12 upward, and then the ejection cylinder 6 is started, and the ejection cylinder 6 pushes the injection mold plate 7 upward to eject the molded automobile parts from the injection molding cavity 3, completing the demoulding process; Since the lifting plate 11 and the upper mold base 12 are firmly connected by the clamping block 17, the positioning connecting plate 16, the tension spring 18 and other structures, when the upper mold base 12 and the injection mold block 13 need to be replaced, the elastic force of the tension spring 18 is overcome, and the clamping block 17 and the tension block 15 are synchronously driven outward through the positioning connecting plate 16, so that the clamping block 17 is disengaged from the positioning groove at the front end of the lifting plate 11, and the upper mold base 12 can be separated from the lifting plate 11 as a whole. The positioning structure is installed symmetrically, so that the firmness of the connection between the upper mold base 12 and the lifting plate 11 can be ensured.

[0026] It is important to note that the construction and arrangement of the present application, as illustrated in various exemplary embodiments, are illustrative only. Although only a few embodiments are described in detail in this disclosure, those reading this disclosure will readily appreciate that numerous modifications are possible (e.g., variations in the size, dimensions, structure, shape, and proportions of various components, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without materially departing from the novel teachings and advantages of the subject matter described herein. For example, components shown as integrally formed may be constructed from multiple parts or components, the positions of components may be inverted or otherwise altered, and the nature, number, or position of discrete components may be modified or changed. All such modifications are therefore intended to be encompassed within the scope of this invention. The order or sequence of any process or method steps may be altered or resequenced according to alternative embodiments. In the claims, any "means-plus-function" clause is intended to cover structures described herein that perform the recited function, and not only structural equivalents but also equivalent structures. Other substitutions, modifications, changes, and omissions may be made in the design, operating conditions, and arrangement of the exemplary embodiments without departing from the scope of this invention. Therefore, the invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0027] Additionally, in order to provide a concise description of exemplary embodiments, all features of an actual embodiment may not be described (i.e., those features that are not relevant to the best mode presently contemplated for carrying out the invention or those that are not relevant to implementing the invention).

[0028] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the scope of protection of the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the essence and scope of the technical solutions of the present invention.

Claims

1. An injection mold for processing automobile parts, comprising a base (1), characterized in that: The top of the base (1) is fixedly mounted with a lower mold base (2), an injection mold cavity (3) is provided inside the lower mold base (2), an injection mold plate (7) is clamped and mounted inside the injection mold cavity (3), an ejection cylinder (6) is fixedly mounted on the bottom of the injection mold plate (7), and limiting columns (8) are fixedly mounted on all four sides of the top of the base (1), a top plate (9) is fixedly mounted on the upper end of the limiting columns (8), a hydraulic cylinder (10) is fixedly mounted on the top of the top plate (9), and the output end of the hydraulic cylinder (10) passes through the bottom of the top plate (9) and is fixedly mounted. A lifting plate (11) is provided, an upper die seat (12) is installed at the bottom of the lifting plate (11), an injection module (13) is installed at the bottom of the upper die seat (12), an active cavity (14) is provided inside the upper die seat (12), a stretching block (15) is installed inside the active cavity (14) via a stretching spring (18), a positioning connecting plate (16) is fixedly installed at the front end of the stretching block (15), a clamping block (17) is fixedly installed at the upper end of the positioning connecting plate (16), and a rear end of the clamping block (17) is clamped to the inside of the lifting plate (11).

2. The injection mold for processing automobile parts according to claim 1, characterized in that: Slide rods (19) are longitudinally mounted on both sides of the lower mold base (2), a slider (20) is slidably mounted on the outside of the slide rods (19), and a fence (21) is fixedly mounted on the outside of the slider (20), and the fence (21) is integrally covered above the injection mold cavity (3), and the bottom of the rear end of the fence (21) is in contact with the top of the lower mold base (2).

3. The injection mold for processing automobile parts according to claim 2, characterized in that: An adjustment plate (22) is fixedly mounted on the front of the enclosure (21), and the lower end of the adjustment plate (22) extends to the front of the lower die base (2) and is connected via a tightening knob (23).

4. The injection mold for processing automobile parts according to claim 3, characterized in that: A thread groove is provided in the middle of the front side of the lower die base (2), and the locking end of the fastening knob (23) connected to the lower end of the adjustment plate (22) is located inside the thread groove and is fastened.

5. The injection mold for processing automobile parts according to claim 1, characterized in that: Support legs (4) are fixedly mounted on all four sides of the bottom of the base (1), and a supporting plate (5) is embedded in the inner side of the supporting leg (4), and the top of the supporting plate (5) is connected to the bottom of the ejection cylinder (6).

6. The injection mold for processing automobile parts according to claim 1, characterized in that: A positioning groove is provided inside the front end of the lifting plate (11), and the clamping block (17) connected to the inner side of the upper end of the positioning connecting plate (16) is clamped into the interior of the positioning groove and is fastened.

7. The injection mold for processing automobile parts according to claim 1, characterized in that: Both sides of the top of the injection mold cavity (3) are provided with card slots, and the bottom of the injection mold plate (7) is connected to the card slots via a protrusion.

8. The injection mold for processing automobile parts according to claim 1, characterized in that: A through slot for the ejection cylinder (6) to move is provided in the middle of the base (1), and the lower end of the ejection cylinder (6) is located inside the through slot and is securely mounted.

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