A lens barrel injection mold with a positioning structure

Abstract

The utility model discloses a lens barrel injection mold with positioning structure, including positioning device and contact device, the contact device fixed mounting is at the both ends of positioning device, the periphery sliding sleeve of contact device has the supporting device, the positioning device includes screw rod, locating plate, mould, connecting side frame and key, the screw rod rotation is installed at the rear end top of mould, the locating plate thread sleeve is connected on the outer ring of screw rod, the connecting side frame fixed mounting is at the both ends bottom of mould, the key fixed mounting is at the side end of connecting side frame and mould is away, the contact device includes extension plate, locating cavity, bolt, return spring and synchronous frame, the return spring fixed mounting is at the inside of locating cavity, the bolt sliding penetrates locating cavity and is connected with return spring. The utility model discloses through the setting of positioning device, contact device and supporting device, has realized the purpose that mould can be positioned and installed fast.

Description

Technical Field

[0001] This utility model relates to the field of mold technology, specifically to a mirror barrel injection mold with a positioning structure. Background Technology

[0002] Optical lens barrel injection molds are precision injection molds specifically designed for producing optical lens barrels (such as camera lens barrels, microscope barrels, laser equipment barrels, etc.). Because lens barrels typically require high precision, low deformation, and excellent optical performance, their mold design and manufacturing processes are more stringent than those of ordinary injection molds.

[0003] For example, a lens barrel injection mold with Chinese Patent Publication No. CN221756713U relates to the field of lens barrel production technology. This utility model includes a base plate, a rear template fixed parallel to one surface of the base plate, and a front template parallel to the rear template on the side away from the base plate. A receiving groove is provided on the surface of the rear template away from the base plate. A rear mold core is fixed in the receiving groove. A guide cylinder and a first support column are fixedly inserted into the rear mold core. Positioning grooves are provided on the end face of the first support column near the front template. A through groove is provided on the surface of the front template near the base plate. A bearing plate parallel to the base plate is provided in the through groove. A front mold core corresponding to the rear mold core is fixedly attached to the surface of the bearing plate near the base plate. A guide post corresponding to the guide cylinder and a second support column corresponding to the first support column are fixedly inserted into the front mold core.

[0004] Existing lens barrel injection molds require prior alignment and translation during installation, and secondary displacement may occur when installing bolts after moving them to the designated position, making quick and accurate installation impossible. Therefore, an improved device is needed to address these issues. Utility Model Content

[0005] The purpose of this invention is to provide a mirror barrel injection mold with a positioning structure to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a mirror barrel injection mold with a positioning structure, comprising a positioning device and a contact device. The contact device is fixedly installed at both ends of the positioning device, and a support device is slidably sleeved around the contact device. The positioning device includes a lead screw, a positioning plate, a mold, a connecting side frame, and a locking key. The lead screw is rotatably installed at the top of the rear end of the mold. The positioning plate is threaded onto the outer ring of the lead screw. The connecting side frame is fixedly installed at the bottom of both ends of the mold, and the locking key is fixedly installed on the side of the connecting side frame away from the mold.

[0007] Preferably, the contact device includes an extension plate, a positioning cavity, pins, a return spring, and a synchronizing frame. The return spring is fixedly installed inside the positioning cavity. The pins slide through the positioning cavity and are connected to the return spring. The synchronizing frame is fixedly installed at the top ends of the two pins. The extension plate is fixedly installed at the rear end of the synchronizing frame.

[0008] Preferably, the support device includes a base, an alignment block, and a base frame, with the base frame symmetrically fixedly installed on the top of the base and the alignment block symmetrically fixedly installed on the top of the base frame.

[0009] Preferably, the bottom end of the positioning cavity is connected to the top end of the connecting side frame, and the locking key is slidably inserted into the opposite inner side of the base frame.

[0010] Preferably, the base frame has a slot at the center of the opposite side end, the alignment block has a square slot at the opposite side end, and the front surface of the alignment block is inclined at 45°.

[0011] Preferably, the top of the positioning cavity is provided with a sliding groove, and a sliding key is installed between the synchronization frame and the pin.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] When in use, this device slides into the base frame via a key, allowing the mold to be quickly moved to the top of the base. Simultaneously, the mold is installed on the top of the base by the alignment block and the pin. Furthermore, when the screw is turned, the positioning plate is inserted into the extension plate, preventing the pin from shifting later, thus completing the quick alignment and installation of the mold. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the positioning device structure of this utility model;

[0016] Figure 3 This is a schematic diagram of the contact device structure of this utility model;

[0017] Figure 4 This is a schematic diagram of the support device structure of this utility model.

[0018] In the diagram: 1-positioning device, 2-contact device, 3-support device, 4-lead screw, 5-positioning plate, 6-mold, 7-connecting side frame, 8-key, 9-extension plate, 10-positioning cavity, 11-pin, 12-reset spring, 13-synchronization frame, 14-base, 15-alignment block, 16-base frame. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figure 1-4 The present invention provides an embodiment of a lens barrel injection mold with a positioning structure, comprising a positioning device 1 and a contact device 2. The contact device 2 is fixedly installed at both ends of the positioning device 1. A support device 3 is slidably sleeved around the contact device 2. The positioning device 1 includes a lead screw 4, a positioning plate 5, a mold 6, a connecting side frame 7, and a locking key 8. The lead screw 4 is rotatably installed at the top of the rear end of the mold 6. The positioning plate 5 is threaded onto the outer ring of the lead screw 4. The connecting side frame 7 is fixedly installed at the bottom of both ends of the mold 6. The locking key 8 is fixedly installed on the side of the connecting side frame 7 away from the mold 6.

[0021] The contact device 2 includes an extension plate 9, a positioning cavity 10, a pin 11, a return spring 12, and a synchronization frame 13. The return spring 12 is fixedly installed inside the positioning cavity 10. The pin 11 slides through the positioning cavity 10 and is connected to the return spring 12. The synchronization frame 13 is fixedly installed at the top of the two pins 11. The extension plate 9 is fixedly installed at the rear end of the synchronization frame 13. When the synchronization frame 13 is pulled, it can drive the pins 11 to move synchronously.

[0022] The support device 3 includes a base 14, an alignment block 15, and a base frame 16. The base frame 16 is symmetrically and fixedly installed on the top of the base 14, and the alignment block 15 is symmetrically and fixedly installed on the top of the base frame 16, which can support the mold 6 to slide and move on the base 14.

[0023] The bottom end of the positioning cavity 10 is connected to the top end of the connecting side frame 7, and the locking key 8 is slidably inserted into the opposite inner side of the base frame 16, which can ensure that the mold 6 moves in a straight line.

[0024] The base frame 16 has a slot at the center of the opposite side end, and the alignment block 15 has a square slot at the opposite side end. The front surface of the alignment block 15 is inclined at 45° to facilitate the docking and cooperation between the pin 11 and the alignment block 15.

[0025] The top of the positioning cavity 10 is provided with a sliding groove, and a sliding key is installed between the synchronization frame 13 and the pin 11 to facilitate the connection between the synchronization frame 13 and the pin 11.

[0026] Working principle: In use, first install and fix the base 14 on the base of the external equipment. Then, move the mold 6 to the top of the base 14. Simultaneously, move the locking key 8 to align with the locking groove inside the side of the base frame 16. After the locking key 8 is aligned with the groove, push the mold 6 to the rear. The locking key 8 slides within the locking groove inside the base frame 16, ensuring the mold 6 moves in a straight line. Furthermore, as the mold 6 slides, it also drives the pin 11 to move synchronously, allowing the pin 11 to engage with the... The positioning block 15 contacts the mold 6 by tilting it at a 45° angle to the front of its side end, and by rounding the end of the pin 11 away from the return spring 12. This improves the smoothness of contact between the pin 11 and the positioning block 15. Then, when the pin 11 moves to align with the square groove inside the side end of the positioning block 15, the elasticity of the return spring 12 causes the pin 11 to insert into the square groove inside the positioning block 15, thus achieving the positioning of the mold 6. Afterwards, rotating the lead screw 4... The positioning plate 5 is moved downwards, and its front end fits against the rear end of the mold 6, ensuring that the positioning plate 5 moves downwards in a straight line. At the same time, when the pin 11 is inserted into the square groove inside the alignment block 15, the round rods at both ends of the bottom of the positioning plate 5 can be vertically aligned with the round holes inside the extension plate 9. When the positioning plate 5 moves downwards, it can drive the round rods to insert into the round holes inside the extension plate 9, which can restrict and position the extension plate 9, preventing the pin 11 from sliding again and completing the locking work of the extension plate 9. This prevents the pin 11 from being moved when the extension plate 9 is accidentally touched. When the mold 6 needs to be disassembled, the screw 4 can be rotated in the opposite direction, causing the positioning plate 5 to move upwards, so that the round rod can be removed from the round hole inside the extension plate 9, releasing the extension plate 9. Then, the timing frame 13 is moved closer to the mold 6, causing the pin 11 to be removed from the square groove inside the side end of the alignment block 15. The mold 6 is then moved forward and pushed, so that the mold 6 can be removed outwards, completing the disassembly work of the mold 6.

[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A mirror barrel injection mold with a positioning structure, comprising a positioning device (1) and a contact device (2), wherein the contact device (2) is fixedly installed at both ends of the positioning device (1), and a support device (3) is slidably sleeved around the periphery of the contact device (2), characterized in that: The positioning device (1) includes a lead screw (4), a positioning plate (5), a mold (6), a connecting side frame (7), and a locking key (8). The lead screw (4) is rotatably mounted on the top of the rear end of the mold (6). The positioning plate (5) is threaded onto the outer ring of the lead screw (4). The connecting side frame (7) is fixedly mounted on the bottom of both ends of the mold (6). The locking key (8) is fixedly mounted on the side end of the connecting side frame (7) away from the mold (6).

2. The mirror barrel injection mold with a positioning structure according to claim 1, characterized in that: The contact device (2) includes an extension plate (9), a positioning cavity (10), a pin (11), a return spring (12), and a timing frame (13). The return spring (12) is fixedly installed inside the positioning cavity (10). The pin (11) slides through the positioning cavity (10) and connects with the return spring (12). The timing frame (13) is fixedly installed at the top of the two pins (11). The extension plate (9) is fixedly installed at the rear end of the timing frame (13).

3. The mirror barrel injection mold with a positioning structure according to claim 2, characterized in that: The support device (3) includes a base (14), an alignment block (15) and a base frame (16). The base frame (16) is symmetrically fixedly installed on the top of the base (14), and the alignment block (15) is symmetrically fixedly installed on the top of the base frame (16).

4. The mirror barrel injection mold with a positioning structure according to claim 3, characterized in that: The bottom end of the positioning cavity (10) is connected to the top end of the connecting side frame (7), and the key (8) is slidably inserted into the inner side of the base frame (16).

5. A mirror barrel injection mold with a positioning structure according to claim 4, characterized in that: The base frame (16) has a slot at the center of the opposite side end, and the alignment block (15) has a square slot at the opposite side end. The front surface of the alignment block (15) is inclined at 45°.

6. A mirror barrel injection mold with a positioning structure according to claim 5, characterized in that: The top of the positioning cavity (10) is provided with a sliding groove, and a sliding key is installed between the synchronization frame (13) and the pin (11).

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