Positioning mechanism for mold lifting

Abstract

The utility model discloses a positioning mechanism for mould lifting, which relates to the technical field of mould lifting positioning and comprises a mould body, the mould body comprises a bearing base, the top of the bearing base is fixedly connected with a lower mould, and a mould groove is arranged in the middle of the top of the lower mould. An upper die is arranged above the lower die, positioning units are arranged on the periphery of the lower die and the periphery of the upper die, buffering units are arranged in the periphery of the lower die, and each positioning unit comprises a limiting transverse plate fixedly installed on the top of the periphery of the lower die. Through the arrangement of the pushing vertical plate, when the upper die and the lower die are subjected to fitting die casting, the inclination angle is gradually changed along with downward movement of the pushing vertical plate, then the sliding block is pushed to slide on the outer surface of the sliding transverse rod, sliding of the sliding block is limited in cooperation with the sliding transverse rod, downward movement of the upper die is further positioned, displacement is prevented, and the die casting efficiency is improved. And the stable lifting effect is promoted.

Description

Technical Field

[0001] This utility model relates to the field of mold lifting and positioning technology, specifically to a positioning mechanism for mold lifting. Background Technology

[0002] Borosilicate glass tubes require molds during processing, and the mold lifting and positioning mechanism is a structure used to lift and position the mold during processing. It is widely used in molds and is an indispensable component of the mold. Molds are the main production and processing tools for borosilicate glass tubes. Therefore, the demand for molds is constantly increasing, which also leads to a gradual increase in the demand for lifting and positioning structures for molds.

[0003] When using lifting and positioning structures for molds, the traditional telescopic lifting mechanism has low positioning accuracy, which leads to a reduction in the processing accuracy of the mold over a long period of use. At the same time, the positioning structure cannot provide cushioning protection for the bottom when lifting, and when descending at too high a speed, it is easy to cause collision damage. Utility Model Content

[0004] The purpose of this utility model is to provide a positioning mechanism for mold lifting to solve the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0006] A positioning mechanism for lifting a mold includes a mold body, the mold body including a support base, a lower mold fixedly connected to the top of the support base, a mold groove being formed at the middle of the top of the lower mold, and an upper mold being disposed above the lower mold.

[0007] Positioning units are provided around the lower mold and the upper mold, and buffer units are provided inside the lower mold.

[0008] A further improvement of the present invention is that the positioning unit includes a limiting horizontal plate fixedly installed on the top of the lower mold, and a bracket fixedly installed at the bottom of the other end of the limiting horizontal plate. The other end of the bracket is welded to the outer surface of the bearing base, and the bracket facilitates the support of the limiting horizontal plate base.

[0009] A further improvement of this utility model is that: a limiting groove is provided inside the limiting horizontal plate, and a sliding horizontal bar is fixedly connected to both ends of the limiting groove. A slider is slidably sleeved on the outer surface of the sliding horizontal bar. The limiting horizontal plate can limit the pushing vertical plate, and the sliding horizontal bar can limit the movement of the slider.

[0010] A further improvement of this utility model is that: a push vertical plate is rotatably connected to both outer surfaces of the slider, and a rotating shaft is rotatably connected to the other end of the push vertical plate. The rotating shaft is fixedly installed on the outer surface of the upper mold. The push vertical plate is provided in four sets around the upper mold, which can facilitate the positional limitation when the upper mold moves down for die casting.

[0011] A further improvement of the present invention is that: the buffer unit includes an elastic wire that is movably sleeved on the outer surface of the sliding crossbar and located in front of the slider; rubber buffer blocks are fixedly installed on all four sides of the bottom of the upper mold; and through slots are opened on all four sides of the top of the lower mold.

[0012] A further improvement of this utility model is that: a sleeve is fixedly installed on the bottom of the through groove, a piston rod is movably inserted into the top of the sleeve, an anti-detachment disc is fixedly connected to the bottom of the piston rod, and the anti-detachment disc is slidably connected to the inner wall of the sleeve. The anti-detachment disc can limit the piston rod when it moves in a buffered manner to prevent it from detaching from the sleeve.

[0013] A further improvement of this utility model is that: a sliding rod is movably inserted around the anti-detachment disc, and the upper and lower ends of the sliding rod are fixedly installed at the upper and lower ends of the inner perimeter of the sleeve. A return spring is movably sleeved on the outer surface of the sliding rod below the anti-detachment disc. The elastic potential energy of the return spring can gradually offset the impact force of die casting, thereby achieving a buffering effect.

[0014] Due to the adoption of the above technical solution, the technological progress achieved by this utility model compared to the prior art is as follows:

[0015] This utility model provides a positioning mechanism for mold lifting. By setting a pushing vertical plate, when the upper mold and the lower mold are fitting and die-casting, the pushing vertical plate itself gradually changes its tilt angle as it moves downward, thereby pushing the slider to slide on the outer surface of the sliding crossbar. The sliding crossbar, in conjunction with the slider, limits the sliding movement, further positioning the downward movement of the upper mold, preventing displacement, and promoting the effect of stable lifting.

[0016] This utility model provides a positioning mechanism for mold lifting. By setting a rubber buffer block, the impact force is reduced when the upper mold and the lower mold are in contact during die casting. The pressure causes the rubber buffer block to push the piston rod, causing the piston rod to move down into the inside of the sleeve, and drive the anti-detachment disc to slide on the outer surface of the slide rod, thereby squeezing the return spring. The elastic force of the return spring can achieve the buffering effect and reduce the impact force of mold die casting. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the lower mold structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the limiting horizontal plate structure of this utility model;

[0020] Figure 4 This is a schematic cross-sectional view of the lower mold structure of this utility model;

[0021] Figure 5 This is a schematic diagram of the sleeve and piston rod structure of this utility model.

[0022] In the diagram: 1. Mold body; 2. Support base; 21. Bracket; 3. Lower mold; 31. Mold groove; 32. Limiting slide groove; 33. Sliding crossbar; 34. Slider; 35. Pushing vertical plate; 36. Rotating shaft; 37. Elastic wire; 38. Through groove; 39. Sleeve; 310. Piston rod; 311. Anti-detachment disc; 312. Slide bar; 313. Return spring; 315. Limiting crossbar; 4. Upper mold; 41. Rubber buffer block. Detailed Implementation

[0023] 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. Example

[0024] like Figure 1-5 As shown, this utility model provides a positioning mechanism for mold lifting, including a mold body 1, a support base 2, a lower mold 3 fixedly connected to the top of the support base 2, a mold groove 31 opened at the middle position of the top of the lower mold 3, an upper mold 4 arranged above the lower mold 3, positioning units arranged around the lower mold 3 and the upper mold 4, a buffer unit arranged inside the lower mold 3, the positioning unit includes a limiting horizontal plate 315 fixedly installed on the top of the lower mold 3, a bracket 21 fixedly installed at the bottom of the other end of the limiting horizontal plate 315, the other end of the bracket 21 welded to the outer surface of the support base 2, a limiting groove 32 opened inside the limiting horizontal plate 315, a sliding horizontal bar 33 fixedly connected to both ends of the limiting groove 32, a slider 34 slidably sleeved on the outer surface of the sliding horizontal bar 33, a pushing vertical plate 35 rotatably connected to both outer surfaces of the slider 34, a rotating shaft 36 rotatably connected to the other end of the pushing vertical plate 35, and the rotating shaft 36 fixedly installed on the outer surface of the upper mold 4.

[0025] Furthermore, the upper mold 4 and the lower mold 3 are brought into contact by the lifting mechanism, so that the borosilicate glass tube is die-cast. As the upper mold 4 gradually moves down, one end of the pushing vertical plate 35 around it rotates inside the rotating shaft 36, while the pushing vertical plate 35 itself gradually changes its tilt angle as it moves down. The other end of the pushing vertical plate 35 rotates on the outer surfaces of both sides of the slider 34 and pushes it to slide on the outer surface of the sliding crossbar 33. The sliding crossbar 33 limits its sliding, further positioning the downward movement of the upper mold 4, preventing displacement and promoting stability. Example

[0026] like Figure 1-5 As shown, based on Embodiment 1, this utility model provides a technical solution: Preferably, the buffer unit includes an elastic wire 37 movably sleeved on the outer surface of the sliding crossbar 33 located in front of the slider 34; rubber buffer blocks 41 are fixedly installed on all four sides of the bottom of the upper mold 4; through grooves 38 are opened on all four sides of the top of the lower mold 3; a sleeve 39 is fixedly installed on the bottom end of the inner part of the through groove 38; a piston rod 310 is movably inserted into the top end of the sleeve 39; an anti-detachment disc 311 is fixedly connected to the bottom end of the piston rod 310; the anti-detachment disc 311 is slidably connected to the inner wall of the sleeve 39; a sliding rod 312 is movably inserted on all four sides of the anti-detachment disc 311; the upper and lower ends of the sliding rod 312 are fixedly installed on the upper and lower ends of the inner four sides of the sleeve 39; a return spring 313 is movably sleeved on the outer surface of the sliding rod 312 below the anti-detachment disc 311.

[0027] Furthermore, when the upper mold 4 and the lower mold 3 are fitted together, the rubber buffer block 41 fits into the piston rod 310. The downward pressure causes the piston rod 310 to move down into the sleeve 39 and drives the anti-detachment disc 311 to slide on the outer surface of the slide rod 312, thereby squeezing the return spring 313. The elastic force of the return spring 313 can achieve a buffering effect and reduce the impact force of die casting.

[0028] The working principle of the positioning mechanism for lifting this mold will be explained in detail below.

[0029] like Figure 1-5As shown, during use, the lifting mechanism drives the upper mold 4 and the lower mold 3 to fit together, so that the borosilicate glass tube is die-cast. When the upper mold 4 gradually moves down, one end of the pushing vertical plate 35 around it rotates inside the rotating shaft 36, while the pushing vertical plate 35 itself gradually changes its tilt angle as it moves down. The other end of the pushing vertical plate 35 rotates on the outer surfaces of both sides of the slider 34 and pushes it to slide on the outer surface of the sliding crossbar 33. The sliding crossbar 33 limits its sliding, further positioning the downward movement of the upper mold 4, preventing displacement, and promoting stability. The slider 34 slides and squeezes the elastic wire 37 to achieve a buffering effect. At the same time, when the upper mold 4 and the lower mold 3 fit together, the rubber buffer block 41 fits with the piston rod 310. The squeezing force generated by the downward movement causes the piston rod 310 to move down into the sleeve 39 and drive the anti-detachment disc 311 to slide on the outer surface of the slide rod 312, thereby squeezing the return spring 313. The elastic force of the return spring 313 can achieve a buffering effect and reduce the impact force of die casting.

[0030] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A positioning mechanism for lifting a mold, comprising a mold body (1), characterized in that: The mold body (1) includes a support base (2), and a lower mold (3) is fixedly connected to the top of the support base (2). A mold groove (31) is opened in the middle of the top of the lower mold (3), and an upper mold (4) is provided above the lower mold (3). Positioning units are provided around the lower mold (3) and the upper mold (4), and buffer units are provided inside the lower mold (3). The positioning unit includes a limiting horizontal plate (315) fixedly installed on the top of the lower mold (3) around the perimeter. A bracket (21) is fixedly installed at the bottom of the other end of the limiting horizontal plate (315). The other end of the bracket (21) is welded to the outer surface of the bearing base (2) around the perimeter. The limiting horizontal plate (315) has a limiting groove (32) inside, and a sliding horizontal bar (33) is fixedly connected to both ends of the limiting groove (32). A slider (34) is slidably sleeved on the outer surface of the sliding horizontal bar (33). Pushing vertical plates (35) are rotatably connected to both outer surfaces of the slider (34), and a rotating shaft (36) is rotatably connected to the other end of the pushing vertical plate (35). The rotating shaft (36) is fixedly installed on the outer surface of the upper mold (4).

2. The positioning mechanism for mold lifting according to claim 1, characterized in that: The buffer unit includes an elastic wire (37) that is movably sleeved on the outer surface of the sliding crossbar (33) and located in front of the slider (34). Rubber buffer blocks (41) are fixedly installed on the bottom four sides of the upper mold (4), and through slots (38) are opened on the top four sides of the lower mold (3).

3. The positioning mechanism for mold lifting according to claim 2, characterized in that: A sleeve (39) is fixedly installed on the bottom of the inner side of the through groove (38). A piston rod (310) is movably inserted into the top of the sleeve (39). An anti-detachment disc (311) is fixedly connected to the bottom of the piston rod (310). The anti-detachment disc (311) is slidably connected to the inner wall of the sleeve (39).

4. A positioning mechanism for mold lifting according to claim 3, characterized in that: Slide rods (312) are movably inserted around the anti-detachment disc (311). The upper and lower ends of the slide rods (312) are fixedly installed at the upper and lower ends of the inner periphery of the sleeve (39). A return spring (313) is movably sleeved on the outer surface of the slide rods (312) below the anti-detachment disc (311).

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