Rapid molding device for injection molded part

Abstract

The rapid molding device comprises a workbench, a control machine, a first fixing device, an air cylinder, an upper mold, a second fixing device, an injection molding box, a fixing mechanism, a mold mechanism and an ejector pin lifting device, the control machine is arranged at the right end of the workbench, the first fixing device is arranged at the top of the workbench, and the air cylinder is arranged at the top of the first fixing device; the upper mold is arranged at the output end of the air cylinder, the second fixing device is arranged around the air cylinder, the injection molding box is arranged at the top of the second fixing device, the fixing mechanism is arranged in the workbench, the mold mechanism is arranged on the workbench, and the ejector pin lifting device is arranged at the top in the workbench. Aiming at the defects of an existing device, by optimizing the structural design, the lower mold is rapidly and stably disassembled, the table top is convenient to clean, the device performance is improved, and efficient mass production of injection molding parts is assisted.

Description

Technical Field

[0001] This invention relates to the field of molding equipment technology, specifically to a rapid molding device for injection molded parts. Background Technology

[0002] Rapid prototyping equipment for injection molded parts optimizes the injection process, improves mold adaptation efficiency and molding parameter control accuracy, and can quickly melt, inject, cool and solidify plastic raw materials to achieve efficient mass production of injection molded parts, significantly shortening the molding cycle.

[0003] The lower mold in existing molding equipment generally requires additional bolts, nuts and other tools for reinforcement during installation, which is inconvenient when disassembly is needed. Moreover, the device for fixing it is located on the workbench, which easily increases cleaning work.

[0004] Therefore, a solution is needed. Summary of the Invention

[0005] (a) Technical problems to be solved To address the shortcomings of existing technologies, this invention provides a rapid prototyping device for injection molded parts, thereby solving the problems mentioned in the background section.

[0006] (II) Technical Solution To achieve the above objectives, the present invention provides the following technical solution: A rapid prototyping device for injection molded parts includes a worktable, a control unit, a first fixing device, a cylinder, an upper mold, a second fixing device, an injection box, a fixing mechanism, a mold mechanism, and an ejector lifting device. The control unit is located at the right end of the worktable, the first fixing device is located at the top of the worktable, the cylinder is located at the top of the first fixing device, the upper mold is located at the output end of the cylinder, the second fixing device is located around the cylinder, the injection box is located at the top of the second fixing device, the fixing mechanism is located inside the worktable, the mold mechanism is located on the worktable, and the ejector lifting device is located at the top inside the worktable. The fixing mechanism includes a fixing groove, a fixing seat, a support seat, a locking sleeve, a locking port, a transmission groove, a slot, a locking ring, transmission teeth, a drive groove, a stepper motor, a rotating shaft, and a gear column. The fixing grooves are oppositely arranged on the left and right sides of the ejector pin lifting device. The fixing seat is located at the bottom of each fixing groove. The support seat is located at the rear half of the top of each fixing seat. The locking sleeve is located at the top of each support seat. The locking port is located at the top of each locking sleeve. The transmission groove is located at the bottom of the front end of each locking sleeve. The slot is located at the left end of each locking port. The locking ring is located inside each locking sleeve. The transmission teeth are evenly arranged at the front end of each locking ring. The drive groove is recessed in the middle of the front half of each fixing seat. The stepper motor is located inside each drive groove. The rotating shaft is located at the top of each stepper motor. The gear column is located at the top of each rotating shaft.

[0007] Preferably, the fixing grooves are arranged in a left-right pair in a front-back structure, and the fixing grooves are rectangular in shape.

[0008] Preferably, the fixing base has a cuboid structure, the locking sleeve has a truncated ring structure, and the fixing base, the supporting base and the locking sleeve are integrally formed.

[0009] Preferably, the locking ring has a truncated ring structure and the ring structure of the locking ring surrounds 270 degrees circumferentially, and the locking ring and the transmission gear are integrally formed.

[0010] Preferably, the mold mechanism includes a slot, a insert plate, a lower mold, an annular groove, and an ejector pin lifting device. The slot is arranged in a left-right structure at each of the locking holes. The insert plate is disposed inside each of the slots. The lower mold is disposed on top of the two insert plates. The annular groove is disposed on the insert plate corresponding to the position of each of the locking holes.

[0011] Preferably, the locking ring passes through the slot along the path of the locking opening, and the insert plate is located at the left and right ends of the bottom of the lower mold, with the length of the lower mold equal to the width of the insert plate.

[0012] Preferably, the insert plate and the lower mold are integrally formed, and the annular groove has an arc-shaped structure.

[0013] (III) Beneficial Effects This invention provides a rapid prototyping device for injection molded parts. It has the following beneficial effects: 1. The "insertion plate + slot" positioning and motor-driven locking ring automatically lock / unlock, eliminating the need for additional tools, greatly simplifying the mold assembly and disassembly process and improving operational efficiency.

[0014] 2. The fixing mechanism is integrated inside the workbench, with only the lower mold exposed, optimizing the workbench layout and reducing the difficulty of cleaning and maintenance.

[0015] 3. The insert plate and the lower mold are integrally formed and positioned with slots. The locking ring is wrapped and fastened to improve the stability and positioning accuracy of the lower mold.

[0016] 4. The control unit uniformly controls the stepper motor to achieve automatic locking / unlocking, reducing manual labor intensity and improving operation convenience and safety.

[0017] 5. The fixed base, support base, locking sleeve, insert plate, and lower mold are all designed as a single piece, which enhances the durability and reliability of the device structure and reduces maintenance costs. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the mold mechanism structure of the present invention; Figure 3 This is a schematic diagram of the internal structure of the workbench of the present invention; Figure 4 This is a schematic diagram of the fixing mechanism structure of the present invention; Figure 5 This is a schematic diagram of the locking ring structure of the present invention.

[0019] In the diagram: 1-Workbench; 2-Control unit; 3-Fixed device one; 4-Cylinder; 5-Upper mold; 6-Fixed device two; 7-Injection box; 8-Fixed mechanism; 81-Fixed groove; 82-Fixed seat; 83-Support seat; 84-Locking sleeve; 85-Locking port; 86-Transmission groove; 87-Card slot; 88-Locking ring; 89-Transmission gear; 810-Drive groove; 811-Stepper motor; 812-Rotating shaft; 813-Gear column; 9-Mold mechanism; 91-Slot; 92-Insertion plate; 93-Lower mold; 94-Ring groove; 10-Ejector pin lifting device. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] Please see Figure 1-5The present invention provides a technical solution for implementation, comprising a worktable 1, a control unit 2, a first fixing device 3, a cylinder 4 (model: JGL-40S), an upper mold 5, a second fixing device 6, an injection box 7, a fixing mechanism 8, a mold mechanism 9, and an ejector pin lifting device 10. The control unit 2 is located at the right end of the worktable 1, the first fixing device 3 is located at the top of the worktable 1, the cylinder 4 is located at the top of the first fixing device 3, the upper mold 5 is located at the output end of the cylinder 4, the second fixing device 6 is located around the cylinder 4, the injection box 7 is located at the top of the second fixing device 6, the fixing mechanism 8 is located inside the worktable 1, the mold mechanism 9 is located on the worktable 1, and the ejector pin lifting device 10 is located at the top inside the worktable 1.

[0022] The fixing mechanism 8 includes a fixing groove 81, a fixing seat 82, a support seat 83, a locking sleeve 84, a locking port 85, a transmission groove 86, a slot 87, a locking ring 88, a transmission gear 89, a drive groove 810, a stepper motor 811 (model: 34HS31-5504S), a rotating shaft 812, and a gear column 813. The fixing grooves 81 are oppositely arranged on the left and right sides of the ejector pin lifting device 10. The fixing seat 82 is located at the bottom of each fixing groove 81, the support seat 83 is located at the rear half of the top of each fixing seat 82, and the locking sleeve 84 is located at the bottom of each support seat 83. At the top, a locking port 85 is located at the top of each locking sleeve 84, a transmission groove 86 is located at the bottom of the front end of each locking sleeve 84, a slot 87 is located at the left end of each locking port 85, a locking ring 88 is located inside each locking sleeve 84, transmission teeth 89 are evenly distributed at the front end of each locking ring 88, a drive groove 810 is recessed in the middle of the front half of each fixed seat 82, a stepper motor 811 is located inside each drive groove 810, a rotating shaft 812 is located at the top of each stepper motor 811, and a gear column 813 is located at the top of each rotating shaft 812.

[0023] In detail, the fixing grooves 81 are arranged in a front-to-back structure, with the fixing grooves 81 having a rectangular structure.

[0024] The fixed base 82 has a cuboid structure, and the locking sleeve 84 has a truncated ring structure. The fixed base 82, the support base 83, and the locking sleeve 84 are integrally formed.

[0025] The locking ring 88 has a truncated ring structure and the ring structure of the locking ring 88 surrounds 270 degrees circumferentially. The locking ring 88 and the transmission gear 89 are integrally formed.

[0026] The mold mechanism 9 includes a slot 91, a insert plate 92, a lower mold 93, an annular groove 94, and an ejector pin lifting device 10. The slot 91 is arranged in a left-right structure at each locking port 85. The insert plate 92 is arranged inside each slot 91. The lower mold 93 is arranged on the top of the two insert plates 92. The annular groove 94 is arranged on the upper part of the insert plate 92 corresponding to the position of each locking port 85.

[0027] The locking ring 88 passes through the slot 91 on the path of the locking port 85, and the insert plate 92 is located at the left and right ends of the bottom of the lower mold 93, and the length of the lower mold 93 is equal to the width of the insert plate 92.

[0028] The insert plate 92 and the lower mold 93 are integrally formed, and the annular groove 94 has an arc structure.

[0029] Solution Analysis: 1. Simplify the mold assembly and disassembly process, significantly improving operational efficiency. Existing technology requires the use of bolts, nuts, and other tools to reinforce the lower mold 93, which is cumbersome and time-consuming to disassemble and assemble. This solution uses the positioning method of "insert plate 92 + slot 91" to quickly place the lower mold 93, and then the stepper motor 811 is driven by the control machine 2 to automatically complete the fixing / unlocking by using gear meshing to drive the locking ring 88. No additional tools are required throughout the process, and the disassembly and assembly operations can be completed by controlling the equipment, which significantly saves mold change time and is more suitable for the high-efficiency requirements of mass production of injection molded parts.

[0030] 2. Optimize the work surface layout to reduce the difficulty of cleaning and maintenance. The existing fixing device is exposed on the workbench surface, which is prone to material accumulation and increases cleaning dead corners; this solution integrates the fixing mechanism 8 (fixing groove 81, stepper motor 811, locking sleeve 84, etc.) inside the workbench 1, with only the lower mold 93 exposed on the workbench surface, reducing the amount of debris and protruding structures on the workbench surface, reducing the workload and difficulty of daily cleaning, and maintaining the cleanliness of the workbench surface.

[0031] 3. Improve the stability and positioning accuracy of the lower mold. In terms of positioning accuracy: the insert plate 92 and the lower mold 93 are integrally formed and are precisely aligned through the slot 91 during installation to ensure the consistency of the installation position of the lower mold 93; In terms of stability: the locking ring 88 is embedded into the ring groove 94 and the slot 87 by circumferential rotation, forming a wrapping fastening of the insert plate 92. Compared with the single-point / multi-point fastening of traditional bolts, the fixing force is more uniform, effectively preventing the lower mold 93 from shifting during injection molding, improving the mold fitting accuracy, and reducing the molding error of the injection molded parts.

[0032] 4. Improve the automation and convenience of operation. By controlling the start and stop of the stepper motor 811 through the controller 2, the fixing / unlocking of the lower mold 93 is automated, eliminating the need for manual tightening of tools, reducing the labor intensity of operators, and reducing errors and safety risks caused by manual operation. The operation process is more convenient and controllable.

[0033] 5. Enhance the durability and reliability of the device structure. The fixed base 82, support base 83 and locking sleeve 84 adopt an integrated molding structure. The insert plate 92 and lower mold 93 are also integrated molding, which reduces the connection gap and loosening risk of the separate parts, improves the strength and stability of the overall structure, extends the service life of the device and reduces the later maintenance cost.

[0034] Working principle: When installing the lower mold 93, align the insert plate 92 with the two slots 91 and insert it downwards so that the lower mold 93 is completely positioned on the worktable 1. Then, the stepper motor 811 is started by the control unit 2, causing it to drive the gear column 813 to rotate via the rotating shaft 812. In turn, the gear column 813 meshes with the transmission gear 89, driving the locking ring 88 to rotate circumferentially within the locking sleeve 84. Finally, the locking ring 88 rotates counterclockwise, passes through the locking port 85 and the ring groove 94, and inserts into the slot 87 to fix the lower mold 93. When disassembly is required, simply drive the stepper motor 811 to release the fixation, and then remove it using other handling devices.

[0035] Technical effects of implementing this solution: This solution addresses the pain points of existing injection molding equipment, such as "inconvenient disassembly and assembly of the lower mold" and "increased cleaning burden due to the table fixing device." Through an integrated internal fixing mechanism, an automated locking structure, and an integrated mold component design, it achieves both rapid disassembly and assembly and stable fixation of the lower mold, optimizes the cleanliness and ease of operation of the worktable, and improves the automation level and structural reliability of the equipment. Ultimately, it helps to achieve rapid, efficient, and high-quality mass production of injection molded parts.

[0036] The present invention comprises: 1-workbench; 2-control machine; 3-fixing device one; 4-cylinder; 5-upper mold; 6-fixing device two; 7-injection box; 8-fixing mechanism; 81-fixing groove; 82-fixing seat; 83-support seat; 84-lock sleeve; 85-locking port; 86-transmission groove; 87-card slot; 88-locking ring; 89-transmission gear; 810-drive groove; 811-stepper motor; 812-rotating shaft; 813-gear column; 9-mold mechanism; 91-slot; 92-insertion plate; 9 3-Lower mold; 94-Annular groove; 10-Ejector pin lifting device. These components are all general standard parts or parts known to those skilled in the art. Their structure and principle can be learned by those skilled in the art through technical manuals or conventional experimental methods. The problem solved by this invention is that the lower mold in existing molding devices generally requires additional bolts, nuts, and other tools for reinforcement during installation, which is inconvenient when disassembly is needed. Moreover, the device for fixing it is located on the worktable, which easily increases cleaning work. This invention addresses the pain points of existing devices by optimizing the structural design to achieve quick and stable disassembly and assembly of the lower mold and convenient cleaning of the worktable, improving device performance and facilitating efficient mass production of injection molded parts.

[0037] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0038] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A rapid prototyping apparatus for injection molded parts, characterized by: The utility model provides a kind of injection molding machine, including workbench (1), control machine (2), fixed device one (3), pneumatic cylinder (4), upper mould (5), fixed device two (6), injection box (7), fixed mechanism (8), mould mechanism (9) and ejector pin lifting device (10), the control machine (2) is arranged at the right end of the workbench (1), the fixed device one (3) is arranged at the top of the workbench (1), the pneumatic cylinder (4) is arranged at the top of the fixed device one (3), the upper mould (5) is arranged at the output end of the pneumatic cylinder (4), the fixed device two (6) is arranged around the pneumatic cylinder (4), the injection box (7) is arranged at the top of the fixed device two (6), the fixed mechanism (8) is arranged inside the workbench (1), the mould mechanism (9) is arranged on the workbench (1), the ejector pin lifting device (10) is arranged at the top inside the workbench (1). The fixed mechanism (8) includes fixed slot (81), fixed seat (82), support seat (83), lock sleeve (84), lock mouth (85), transmission slot (86), clamping slot (87), lock ring (88), transmission teeth (89), drive slot (810), stepper motor (811), shaft (812) and gear column (813), the fixed slot (81) is oppositely arranged at the left and right sides of the ejector pin lifting device (10), the fixed seat (82) is arranged at the bottom of each fixed slot (81), the support seat (83) is arranged at the top of the rear half of each fixed seat (82), the lock sleeve (84) is arranged at the top of each support seat (83), the lock mouth (85) is arranged at the top of each lock sleeve (84), the transmission slot (86) is arranged at the bottom of the front end of each lock sleeve (84), the clamping slot (87) is arranged at the left end of each lock mouth (85), the lock ring (88) is arranged inside each lock sleeve (84), the transmission teeth (89) are evenly arranged at the front end of each lock ring (88), the drive slot (810) is concave in each fixed seat (82) The middle of the front half is arranged, the stepper motor (811) is arranged inside each drive slot (810), the shaft (812) is arranged at the top of each stepper motor (811), and the gear column (813) is arranged at the top of each shaft (812).

2. The rapid prototyping device for injection molded parts of claim 1, wherein: The fixed slot (81) is distributed in a front-back structure on the left and right as a group, and the fixed slot (81) is in a rectangular structure.

3. The rapid prototyping apparatus for injection molded parts of claim 2, wherein: The fixed seat (82) is in a cuboid structure, the lock sleeve (84) is in a truncated ring structure, and the fixed seat (82), the support seat (83) and the lock sleeve (84) are integrally formed.

4. The rapid prototyping apparatus for injection molded parts of claim 3, wherein: The lock ring (88) is in a truncated ring structure, and the ring structure of the lock ring (88) circumferentially surrounds two hundred and seventy degrees, and the lock ring (88) and the transmission teeth (89) are integrally formed.

5. The rapid prototyping apparatus for injection molded parts of claim 4, wherein: The mold mechanism (9) comprises a slot (91), an insert plate (92), a lower mold (93), a ring groove (94) and a ejector pin lifting device (10), the slot (91) is arranged at each lock opening (85) in a left-right structure, the insert plate (92) is arranged inside each slot (91), the lower mold (93) is arranged on the top of two insert plates (92), and the ring groove (94) is arranged on the insert plate (92) corresponding to the position of each lock opening (85).

6. The rapid prototyping apparatus for injection molded parts of claim 5, wherein: The lock ring (88) is located on the path of the lock opening (85) and passes through the slot (91), the insert plate (92) is located at the left and right ends of the bottom of the lower mold (93), and the length of the lower mold (93) is equal to the width of the insert plate (92).

7. The rapid prototyping apparatus for injection molded parts of claim 6, wherein: The insert plate (92) and the lower mold (93) are integrally formed, and the ring groove (94) has an arc structure.

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