A nozzle head punching apparatus for injection molding machine accessory production

Abstract

This invention relates to the field of metal processing and provides a nozzle drilling device for the production of injection molding machine parts. The device includes a base and further comprises: a rotary feeding assembly, which includes a drive assembly housing fixedly connected to the base. The top of the drive assembly housing is equipped with a drag chain wheel structure, on which multiple U-shaped forks for receiving the nozzle head are arranged; a lifting drilling assembly, which includes a vertically arranged column located on top of the drag chain wheel structure, on which a deep hole drill capable of moving vertically is mounted; and a clamping and fixing assembly located on the base. Its advantages are: this device significantly improves the automation level of nozzle drilling, reduces manual intervention, and avoids efficiency losses and positioning deviations caused by frequent loading and unloading.

Description

Technical Field

[0001] This invention belongs to the field of metal processing, and in particular relates to a drilling device for nozzle heads used in the production of injection molding machine parts. Background Technology

[0002] The injection nozzle is a crucial component of an injection molding machine, used to precisely control the injection of plastic material. It directly affects the molding quality and production efficiency of the product.

[0003] Nozzle head drilling refers to machining a mating hole on the sprue bushing or fixed mold base of the injection mold to mate with the injection nozzle of the injection molding machine. Its main purpose is to guide molten plastic smoothly from the nozzle head into the mold's runner system. This hole is usually a circular through hole, and its center must be precisely aligned with the main runner of the mold to prevent overflow, blockage, or poor alignment. This hole is generally machined using precision drilling equipment, such as vertical drilling machines or CNC milling machines, and must ensure that the hole wall is smooth and burr-free to meet the long-term use requirements of high-temperature, high-pressure injection molding processes.

[0004] In practice, since the nozzle head itself is cylindrical and drilling is performed along its length, the nozzle head needs to be fixed vertically before drilling. During the entire drilling process, the operator needs to frequently pick up and drop the nozzle head, which involves loading and unloading the nozzle head. This results in low efficiency of the entire drilling process. Therefore, a nozzle head drilling device for injection molding machine parts production is proposed to solve the above problems. Summary of the Invention

[0005] The purpose of this invention is to provide a nozzle head drilling device for the production of injection molding machine parts, aiming to solve the problems mentioned in the background art.

[0006] The present invention is implemented as follows: a nozzle head drilling device for injection molding machine parts production includes a base, and further includes: A rotary feeding assembly includes a drive assembly housing fixedly connected to a base. The top of the drive assembly housing is provided with a drag chain wheel structure. The drag chain wheel structure is provided with multiple U-shaped forks for receiving nozzle heads. The drive assembly housing is used to drive the drag chain wheel structure to work, so that the multiple U-shaped forks rotate in the horizontal plane. A lifting drilling assembly includes a vertically mounted column located at the top of the drag chain wheel structure, on which a deep hole drill capable of moving vertically is mounted. The clamping and fixing component is located on the base and on one side of the rotary feeding component. The clamping and fixing component can disengage the nozzle head from the U-shaped fork and fix the nozzle head and move it to the position corresponding to the deep hole drilling machine.

[0007] The feeding assembly includes two guide plates spaced apart and corresponding to the U-shaped fork. When the nozzle head is located within the two guide plates, the nozzle head itself is in a vertical state. The guide plates are fixedly connected to the extension seat through multiple support columns. A telescopic pusher is fixedly connected to one end of the two guide plates away from the U-shaped fork. The telescopic pusher is used to push the nozzle head between the two guide plates to move towards the U-shaped fork side.

[0008] Preferably, the drive assembly housing includes a double-ended drive housing and two transmission housings, with the two transmission housings located on both sides of the double-ended drive housing, and the double-ended drive housing being connected to the two transmission housings via transmission shafts on both sides. The drag chain wheel structure includes sprockets located at the output ends of two transmission boxes. The sprockets are located on the top of the transmission boxes, and a drag chain structure is provided between the two sprockets. The U-shaped forks are installed on one side of the drag chain structure and are evenly distributed relative to the drag chain structure. The two transmission boxes are used to drive the two sprockets to rotate synchronously and in the same direction.

[0009] Preferably, the top and bottom of the sprocket are both fixedly provided with a cover covering the entire drag chain sprocket structure, a sliding gap is provided between the two covers, the U-shaped fork is located in the sliding gap, the two covers are used to limit the U-shaped fork, and a limiting wheel that is located between the two sprockets and cooperates with the drag chain structure is rotatably provided in the two covers.

[0010] Preferably, one side of one of the transmission boxes is fixedly connected to an inclined guide plate. When the nozzle on the U-shaped fork contacts the guide plate, the guide plate is used to push the nozzle away from the corresponding U-shaped fork.

[0011] Preferably, the clamping and fixing assembly includes two guide rails spaced apart on the base, a drive seat slidably disposed on the two guide rails, the moving direction of the drive seat being perpendicular to the drag chain wheel rotation structure, and mounting seats disposed on both sides of the drive seat. The drive seat is used to drive the two mounting seats to move in a relative state, and a clamping seat for fastening the nozzle head is detachably fixedly connected to the mounting seat.

[0012] Preferably, the card holder has a conical groove that matches the head shape of the nozzle, and the height of the conical groove is greater than the height of the nozzle head on the U-shaped fork. When the conical grooves on both card holders engage with the nozzle head, the nozzle head itself remains vertical and can be raised to a predetermined height.

[0013] Preferably, an extension seat is fixedly connected to the side of the base away from the clamping and fixing component, and a feeding component is provided on the extension seat. The feeding component is used to transport the nozzle head to the rotating U-shaped fork.

[0014] The present invention provides a nozzle head drilling device for injection molding machine parts production, the advantages of which are: This equipment integrates a rotary feeding assembly, a lifting drilling assembly, and a clamping and fixing assembly to achieve automated and continuous vertical deep hole machining. During drilling, multiple nozzles are pre-placed within the U-shaped fork of the rotary feeding assembly. The drive assembly housing drives the drag chain wheel structure to circulate horizontally, sequentially transporting the nozzles to designated positions. The clamping and fixing assembly moves laterally, grabbing the nozzles from the U-shaped fork for precise positioning and clamping, and then moving them directly below the deep hole drill. The deep hole drill in the lifting drilling assembly descends along a vertical column, performing high-precision drilling along the axial direction of the fixed nozzles. After machining is complete, the clamping and fixing assembly returns the drilled nozzles to the U-shaped fork, where they rotate with the drag chain wheel structure. This equipment significantly improves the automation level of nozzle drilling, reduces manual intervention, and avoids efficiency losses and positioning deviations caused by frequent loading and unloading. This ensures the stability of hole perpendicularity, coaxiality, and surface quality, which not only improves production efficiency but also guarantees the processing accuracy of injection mold mating holes. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of a nozzle head drilling device for injection molding machine parts production, provided by an embodiment of the present invention. Figure 2 A front view of a nozzle head drilling device for injection molding machine parts production provided in an embodiment of the present invention; Figure 3 A side view of a nozzle head drilling device for injection molding machine parts production provided in an embodiment of the present invention; Figure 4 This is a three-dimensional structural diagram of the clamping and fixing assembly, the rotary feeding assembly, and the feeding assembly provided in an embodiment of the present invention; Figure 5 This is a schematic diagram illustrating the cooperation between the drag chain wheel structure and the clamping and fixing components provided in an embodiment of the present invention. Figure 6 This is a three-dimensional structural diagram of the feeding assembly provided in an embodiment of the present invention.

[0016] In the attached diagram: 1. Base; 2. Drive assembly housing; 201. Double-end drive box; 202. Drive shaft; 203. Transmission box; 3. Cable drag chain rotation structure; 301. U-shaped fork; 302. Sprocket; 303. Cable drag chain structure; 304. Cover; 305. Limiting wheel; 4. Column; 5. Deep hole drill; 6. Clamping and fixing assembly; 601. Guide rail; 602. Drive seat; 603. Mounting seat; 604. Card seat; 605. Conical groove; 7. Guide plate; 8. Extension seat; 9. Feeding assembly; 901. Guide clamp; 902. Telescopic pusher assembly; 903. Support column; 10. Drive motor; 11. Rack and pinion structure; 12. Nozzle head. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0018] The specific implementation of the present invention will be described in detail below with reference to specific embodiments.

[0019] like Figure 1 , Figure 2 and Figure 3 As shown, an embodiment of the present invention provides a nozzle head drilling device for the production of injection molding machine parts, including a base 1, and further comprising: The rotary feeding assembly includes a drive assembly housing 2 fixedly connected to the base 1. The top of the drive assembly housing 2 is provided with a drag chain wheel structure 3. The drag chain wheel structure 3 is provided with a plurality of U-shaped forks 301 for receiving the nozzle head 12. The drive assembly housing 2 is used to drive the drag chain wheel structure 3 to work, so that the plurality of U-shaped forks 301 rotate in the horizontal plane. The lifting drilling assembly includes a column 4 located at the top of the drag chain wheel structure 3 and vertically arranged, and a deep hole drill 5 that can move in the vertical direction is provided on the column 4. The clamping and fixing component 6 is located on the base 1 and is on one side of the rotary feeding component. The clamping and fixing component 6 can disengage the nozzle head 12 from the U-shaped fork 301, and fix the nozzle head 12 and move it to the position corresponding to the deep hole drilling machine 5.

[0020] In one embodiment of the present invention, this equipment achieves automated and continuous vertical deep hole processing by integrating a rotary feeding assembly, a lifting drilling assembly, and a clamping and fixing assembly 6. During drilling, multiple nozzles 12 are pre-placed within the U-shaped fork 301 of the rotary feeding assembly. The drive assembly housing 2 drives the drag chain wheel structure 3 to circulate horizontally, sequentially conveying the nozzles 12 to designated positions. The clamping and fixing assembly 6 moves laterally and grabs them from the U-shaped fork 301 for precise positioning and clamping, then moves them directly below the deep hole drill 5. The deep hole drill 5 in the lifting drilling assembly descends along the vertical column 4, performing high-precision drilling on the fixed nozzles 12 along their axial direction. After processing is completed, the clamping and fixing assembly 6 can return the drilled nozzles 12 to the U-shaped fork 301, where they then rotate with the drag chain wheel structure 3. This equipment significantly improves the automation level of drilling the nozzle head 12, reduces manual intervention, avoids efficiency loss and positioning deviation caused by frequent loading and unloading, and thus ensures the stability of hole perpendicularity, coaxiality and surface quality. It not only improves production efficiency, but also ensures the processing accuracy of injection mold mating holes.

[0021] In one example of the present invention, such as Figure 2 and 3 As shown, the deep hole drilling machine 5 is in a conventional form. The difference is that the structure that drives its lifting and lowering needs to be explained. A drive motor 10 is provided on one side of the deep hole drilling machine 5, and a rack structure 11 is fixedly provided on the column 4. The deep hole drilling machine 5 can be controlled to lift and lower through the cooperation of the drive motor 10 and the rack structure 11, thereby controlling the contact or separation of the drill bit and the nozzle head 12.

[0022] like Figure 2 and Figure 4 As shown, in a preferred embodiment of the present invention, the drive assembly housing 2 includes a double-ended drive housing 201 and two transmission housings 203. The two transmission housings 203 are located on both sides of the double-ended drive housing 201, and the double-ended drive housing 201 is connected to the two transmission housings 203 by transmission shafts 202 on both sides.

[0023] In one case of this embodiment, such as Figure 5 As shown, the cable chain drive structure 3 includes sprockets 302 disposed at the output ends of two transmission boxes 203. The sprockets 302 are located on top of the transmission boxes 203, and a cable chain structure 303 is disposed between the two sprockets 302. The U-shaped forks 301 are installed on one side of the cable chain structure 303 and are evenly distributed relative to the cable chain structure 303. The two transmission boxes 203 are used to drive the two sprockets 302 to rotate synchronously and in the same direction. A double-ended motor can be disposed in the double-ended drive box 201, which transmits power to the transmission boxes 203 on both sides through the drive shaft 202, thereby causing the sprockets 302 to rotate synchronously and enabling the cable chain structure 303 to move. This achieves the position change of the U-shaped fork 301, transporting the nozzle head 12 on the U-shaped fork 301 to the designated position. This feeding method mainly utilizes the structural features of the nozzle head 12. Generally, the nozzle head 12 has a locking nut for fixing it. This locking nut provides favorable conditions for the U-shaped fork 301 to support the nozzle head 12, ensuring that the nozzle head 12 remains vertical during both feeding and drilling processes. This vertical position also meets the requirements for drilling. Additionally, it should be noted that because the nozzle head 12 itself has a certain weight, to ensure that the nozzle head 12 remains vertical on the U-shaped fork 301, as... Figure 4As shown, the top and bottom of the sprocket 302 are both fixedly provided with a cover 304 covering the entire drag chain rotating structure 3. A sliding gap is provided between the two covers 304. The U-shaped fork 301 is located in the sliding gap. The two covers 304 are used to limit the U-shaped fork 301. A limiting wheel 305 is rotatably provided in the two covers 304, located between the two sprockets 302 and cooperating with the drag chain structure 303. The limiting wheel 305 can stabilize the state of the drag chain structure 303, prevent it from deflecting, and avoid the orientation of the U-shaped fork 301 from changing. Due to the presence of the two covers 304, the U-shaped fork 301 can also be limited, so that the U-shaped fork 301 can be kept in a horizontal state, which indirectly ensures the posture of each nozzle head 12.

[0024] like Figure 4 As shown, based on the above embodiment, a supplementary explanation is provided. One of the transmission boxes 203 is fixedly connected to an inclined guide plate 7. When the nozzle head 12 on the U-shaped fork 301 contacts the guide plate 7, the guide plate 7 is used to push the nozzle head 12 away from the corresponding U-shaped fork 301.

[0025] In one embodiment, after the nozzle head 12 has completed drilling, it can be reset onto the U-shaped fork 301 by the clamping and fixing component 6. As the drag chain structure 303 operates, the nozzle head 12 will shift to one side. When it contacts the guide plate 7, the guide plate 7 is tilted and can push the nozzle head 12 away from the U-shaped fork 301, thereby completing the rapid unloading process in the drilling of the nozzle head 12.

[0026] like Figure 5 As shown, in a preferred embodiment of the present invention, the clamping and fixing assembly 6 includes two guide rails 601 spaced apart on the base 1. A drive seat 602 is slidably mounted on the two guide rails 601. The moving direction of the drive seat 602 is perpendicular to the drag chain wheel structure 3. Mounting seats 603 are provided on both sides of the drive seat 602. The drive seat 602 is used to drive the two mounting seats 603 to move relative to each other. A retainer 604 for fastening the nozzle head 12 is detachably fixedly connected to each mounting seat 603. In one embodiment, the mounting base 604 has a conical groove 605 that matches the head shape of the nozzle head 12, and the height of the conical groove 605 is greater than the height of the nozzle head 12 on the U-shaped fork 301. When the conical grooves 605 on both sides of the mounting base 604 engage with the nozzle head 12, the nozzle head 12 remains vertical and can be raised to a predetermined height. Under normal circumstances, if the mounting base 604 clamps the nozzle head 12 horizontally away from the U-shaped fork 301, regardless of the structure used... By limiting the U-shaped fork 301, the orientation angle of the U-shaped fork 301 will rise due to the reduced weight it bears. However, the clamping and fixing component 6 itself does not have a height adjustment function, which may cause the nozzle head 12 after drilling to fail to return to the U-shaped fork 301. Therefore, by designing the height of the tapered groove 605, the nozzle head 12 is already raised to a certain height when clamping it, which not only allows it to smoothly detach from the U-shaped fork 301, but also makes the resetting process smoother.

[0027] like Figure 5 and Figure 6 As shown, in a preferred embodiment of the present invention, an extension seat 8 is fixedly connected to the side of the base 1 away from the clamping and fixing component 6. A feeding component 9 is provided on the extension seat 8. The feeding component 9 is used to feed the nozzle head 12 to the rotating U-shaped fork 301.

[0028] In one embodiment, the feeding assembly 9 includes two guide plates 901 spaced apart and corresponding to the U-shaped fork 301. When the nozzle head 12 is located within the two guide plates 901, the nozzle head 12 is in a vertical position. The guide plates 901 are fixedly connected to the extension seat 8 via multiple support columns 903. A telescopic pusher is fixedly connected to one end of the two guide plates 901 away from the U-shaped fork 301. The telescopic pusher is used to push the nozzle head 12 between the two guide plates 901 toward the U-shaped fork 301. The telescopic pusher can be in the form of an electric telescopic rod or a pneumatic telescopic rod. When the nozzle head 12 is placed between the guide plates 901, the telescopic pusher will push it to move laterally, thereby moving it into the corresponding position of the U-shaped fork 301. The supplement of the feeding assembly 9 enables the nozzle head 12 to rotate continuously and rapidly throughout the drilling process, thereby improving the overall drilling efficiency of the nozzle head 12. 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 in all respects as exemplary and non-limiting, 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.

[0029] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0030] 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 nozzle head drilling device for injection molding machine parts production, comprising a base (1), characterized in that, Also includes: The rotary feeding assembly includes a drive assembly housing (2) fixedly connected to the base (1). The top of the drive assembly housing (2) is provided with a drag chain wheel structure (3). The drag chain wheel structure (3) is provided with multiple U-shaped forks (301) for receiving the nozzle head (12). The drive assembly housing (2) is used to drive the drag chain wheel structure (3) to work, so that the multiple U-shaped forks (301) rotate in the horizontal plane. The lifting drilling assembly includes a column (4) located on top of the drag chain wheel structure (3) and vertically arranged, and a deep hole drill (5) that can move in the vertical direction is provided on the column (4). The clamping and fixing component (6) is located on the base (1) and on one side of the rotary feeding component. The clamping and fixing component (6) can disengage the nozzle head (12) from the U-shaped fork (301) and fix the nozzle head (12) and move it to the position corresponding to the deep hole drilling machine (5). The clamping and fixing assembly (6) includes two guide rails (601) spaced apart on the base (1). A drive seat (602) is slidably disposed on the two guide rails (601). The moving direction of the drive seat (602) is perpendicular to the drag chain wheel structure (3). Mounting seats (603) are provided on both sides of the drive seat (602). The drive seat (602) is used to drive the two mounting seats (603) to move in a relative state. A card seat (604) for fastening the nozzle head (12) is detachably fixedly connected to the mounting seat (603). The card holder (604) has a conical groove (605) that matches the head shape of the nozzle head (12), and the height of the conical groove (605) is greater than the height of the nozzle head (12) on the U-shaped fork (301). When the conical groove (605) on both sides of the card holder (604) engages with the nozzle head (12), the nozzle head (12) itself remains vertical and can be raised to a predetermined height.

2. The nozzle head drilling equipment for injection molding machine parts production according to claim 1, characterized in that, The drive assembly housing (2) includes a double-ended drive housing (201) and two transmission housings (203). The two transmission housings (203) are located on both sides of the double-ended drive housing (201). The double-ended drive housing (201) is connected to the two transmission housings (203) via transmission shafts (202) on both sides. The drag chain wheel structure (3) includes sprockets (302) disposed at the output ends of two transmission boxes (203). The sprockets (302) are located on the top of the transmission boxes (203). A drag chain structure (303) is disposed between the two sprockets (302). The U-shaped forks (301) are installed on one side of the drag chain structure (303) and are evenly distributed relative to the drag chain structure (303). The two transmission boxes (203) are used to drive the two sprockets (302) to rotate synchronously and in the same direction.

3. The nozzle head drilling equipment for injection molding machine parts production according to claim 2, characterized in that, The top and bottom of the sprocket (302) are both fixedly provided with a cover (304) covering the entire drag chain wheel structure (3). A sliding gap is provided between the two covers (304). The U-shaped fork (301) is located in the sliding gap. The two covers (304) are used to limit the U-shaped fork (301). A limiting wheel (305) is rotatably provided in the two covers (304) between the two sprockets (302) and cooperates with the drag chain structure (303).

4. The nozzle head drilling equipment for injection molding machine parts production according to claim 2, characterized in that, One of the transmission boxes (203) is fixedly connected to an inclined guide plate (7). When the nozzle head (12) on the U-shaped fork (301) contacts the guide plate (7), the guide plate (7) is used to push the nozzle head (12) away from the corresponding U-shaped fork (301).

5. The nozzle head drilling equipment for injection molding machine parts production according to claim 1, characterized in that, An extension seat (8) is fixedly connected to the side of the base (1) away from the clamping and fixing assembly (6). A feeding assembly (9) is provided on the extension seat (8). The feeding assembly (9) is used to feed the nozzle head (12) to the rotating U-shaped fork (301).

6. The nozzle head drilling equipment for injection molding machine parts production according to claim 5, characterized in that, The feeding assembly (9) includes two guide plates (901) spaced apart and located corresponding to the U-shaped fork (301). When the nozzle head (12) is located within the two guide plates (901), the nozzle head (12) is in a vertical state. The guide plates (901) are fixedly connected to the extension seat (8) through multiple support columns (903). A telescopic pusher is fixedly connected to one end of the two guide plates (901) away from the U-shaped fork (301). The telescopic pusher is used to push the nozzle head (12) between the two guide plates (901) to move towards the U-shaped fork (301).

Images