CN210233888U

CN210233888U - Mechanical limiting mechanism for preventing sliding block from falling

Info

Publication number: CN210233888U
Application number: CN201921188319.6U
Authority: CN
Inventors: Min Wang; 王敏; Muxing Zheng; 郑木兴; Yingjun Miao; 缪应俊; Zuomin Wang; 王作敏
Original assignee: Yanfeng Automotive Trim Mould Technology Co Ltd
Current assignee: Yanfeng Automotive Trim Mould Technology Co Ltd
Priority date: 2019-07-25
Filing date: 2019-07-25
Publication date: 2020-04-03
Anticipated expiration: 2029-07-25

Abstract

The utility model provides a prevent mechanical type stop gear that slider dropped, include: the movable mould, the slider of loosing core of slidable on the movable mould, install the hydro-cylinder connecting block in the assembly groove on the slider of loosing core, be connected with the hydro-cylinder connecting block and follow the hydro-cylinder of loosing core slider slip direction installation, install the guide rail that provides the direction for the motion of the slider of loosing core on the movable mould, and perpendicular to looses core the motion direction of slider and install the stopper in the movable mould telescopically, wherein, first bellying has on the hydro-cylinder connecting block, the front end of stopper has the second bellying with first bellying butt, the lower extreme of the slider of loosing core has the depressed part that can hold the second bellying on the stopper. The utility model provides a mechanical type stop gear that security performance improves by a wide margin can avoid the slider to drop and lead to the mould to damage or the slider drops the problem that inductive switch became invalid and leads to frequently shutting down.

Description

Mechanical limiting mechanism for preventing sliding block from falling

Technical Field

The utility model relates to the technical field of mold, more specifically relates to a prevent mechanical type stop gear that slider dropped.

Background

In the automobile parts field of making, to the header board mould, day side defrosting wind channel is owing to adopt the back-off in product drawing of patterns direction, consequently need use through the large-scale slider of pneumatic cylinder driven, and prior art adopts the hydrovalve as the mechanism of locking slider in order to prevent the slider and drops usually, and because factors such as hydrovalve unstability or maloperation, the slider drops and leads to the mould to damage or the slider drops the inductive switch and loses efficacy and lead to the phenomenon of frequently shutting down occasionally to take place.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a prevent mechanical type stop gear that slider dropped to there is the slider to drop to lead to the mould to damage or the slider drops the problem that inductive switch became invalid and leads to frequently shutting down in the instrument panel mould among the solution prior art.

In order to solve the technical problem, the utility model discloses a following technical scheme:

the utility model provides a prevent mechanical type stop gear that slider dropped, mechanical type stop gear includes: the movable mould, the slider of loosing core of slidable on the movable mould, install the hydro-cylinder connecting block in the assembly groove on the slider of loosing core, be connected with the hydro-cylinder connecting block and follow the hydro-cylinder of the slider slip direction installation of loosing core, install the guide rail that provides the direction for the motion of the slider of loosing core on the movable mould, and perpendicular to looses core the motion direction of slider and install the stopper in the movable mould telescopically, wherein, first bellying has on the hydro-cylinder connecting block, the front end of stopper have can with the second bellying of first bellying butt, the lower extreme of the slider of loosing core has the depressed part that can hold the second bellying on the stopper.

Optionally, the cylinder connecting block includes a large head portion and a small head portion extending upward from an upper surface of the large head portion, and the first protrusion is formed on an outer circumferential wall of the large head portion.

Preferably, the assembly groove on the core pulling sliding block is internally provided with a step part for clamping the large head part of the oil cylinder connecting block so as to realize the assembly connection of the oil cylinder connecting block and the core pulling sliding block.

Preferably, the distance between the step part and the bottom of the assembling groove is larger than the height of the large head part of the oil cylinder connecting block, so that a reset gap for pressing the limiting block into the movable die by the oil cylinder connecting block is provided.

Preferably, the first lug boss on the oil cylinder connecting block consists of: a first inclined surface extending obliquely downward from the upper surface of the large head, a second inclined surface extending obliquely upward from the lower surface of the large head, and a first flat surface connecting the first inclined surface and the second inclined surface.

Preferably, the second protruding portion on the limiting block has the same structure as the first protruding portion, the second protruding portion is composed of a third inclined surface, a fourth inclined surface and a second flat surface connecting the third inclined surface and the fourth inclined surface, and the limiting block can be abutted to the first flat surface on the oil cylinder connecting block through the second flat surface.

Optionally, the oil cylinder connecting block is in threaded connection with the bottom of the oil cylinder.

Preferably, the rear end of the limiting block is provided with a spring which can provide ejection force for the limiting block.

Preferably, the rear end of the limiting block is also connected with a screw which can provide the opposite force to the spring.

The installation position of the limiting block is spaced from the initial position of the core-pulling slide block by a certain distance, and the distance is determined by the movement stroke of the core-pulling slide block.

According to the utility model provides a pair of prevent mechanical type stop gear that slider dropped, when the slider of loosing core when opening the in-process and moving maximum position, the stopper carries out the locking to the slider of loosing core in ejecting the inserting slider bottom recess of loosing core from the movable mould, and during resetting, hydro-cylinder promotion hydro-cylinder connecting block is exerted pressure the stopper and is made it impressed in the movable mould, and the slider of loosing core breaks away from the stopper and realizes the unblock, and hydro-cylinder promotion slider accomplishes the action that resets.

In a word, the utility model provides a mechanical type stop gear that security improves by a wide margin, especially a mechanical type stop gear who is applicable to instrument board day side hydraulic cylinder driven large-scale slider can avoid the slider to drop and lead to the mould to damage or the slider drops the problem that inductive switch became invalid and leads to frequently shutting down.

Drawings

Fig. 1 is an overall view of a mechanical spacing mechanism according to a preferred embodiment of the present invention, in which a movable mold is not shown;

FIG. 2 is a cross-sectional view of the mechanical spacing mechanism of FIG. 1;

fig. 3A, fig. 3B, and fig. 3C are schematic structural diagrams of the cylinder connecting block at different viewing angles, respectively;

FIG. 4 is a schematic structural diagram of a stopper;

FIG. 5 is a schematic view of the assembly details of the core pulling slider, the cylinder connecting block and the cylinder;

FIG. 6 is a cross-sectional view of the core pulling slider, the cylinder connecting block and the cylinder assembled together;

FIG. 7 is a schematic connection diagram of the core-pulling slider, the oil cylinder connecting block and the limiting block;

fig. 8A, 8B, 8C, 8D, and 8E are schematic views of a mechanical limiting mechanism according to a preferred embodiment of the present invention in different processes.

Detailed Description

The present invention will be further described with reference to the following specific embodiments. It should be understood that the following examples are illustrative of the present invention only and are not intended to limit the scope of the present invention.

Referring to fig. 1 and 2, a mechanical limiting mechanism for preventing a large-sized sliding block from falling according to a preferred embodiment of the present invention is shown. This mechanical type stop gear mainly includes: a movable die 1, a core-pulling slide block 2 which can slide along the direction obliquely upwards in the drawing 1 on the movable die 1, an oil cylinder connecting block 3 which is arranged in an assembling groove on the core-pulling slide block 2, an oil cylinder 4 connected with the oil cylinder connecting block 3 and arranged in the sliding direction of the core-pulling slide block 2, a guide rail 5 arranged on the movable die 1 for guiding the movement of the core-pulling slide block 2, and a limiting block 6 arranged in the movable die 1 and perpendicular to the movement direction of the core-pulling slide block 2, the spacing block 6 is spaced from the initial position of the core-pulling slide block 2 by a certain distance, which is determined according to the movement stroke of the core-pulling slide block 2, the first protruding portion 31 is arranged on the oil cylinder connecting block 3, the second protruding portion 61 which can abut against the first protruding portion 31 is arranged at the front end of the limiting block 6, and as shown in fig. 5, the recess 21 which can accommodate the second protruding portion 61 on the limiting block 6 is arranged at the lower end of the core-pulling slider 2.

According to the preferred embodiment, shown in fig. 3A, 3B, and 3C, the cylinder connection block 3 includes a large head portion, preferably a first cylindrical portion 32 having a first diameter, and a small head portion, preferably a second cylindrical portion 33 having a second diameter, extending upward from an upper surface of the large head portion, the first diameter being greater than the second diameter. A first projection 31 on the cylinder connection block 3 is formed on the outer peripheral wall of the first cylindrical portion 32, the first projection 31 being formed by: a first inclined surface 321 extending obliquely downward from the upper surface of the first cylindrical portion 32, a second inclined surface 322 extending obliquely upward from the lower surface of the first cylindrical portion 32, and a first flat surface 323 connecting the first inclined surface 321 and the second inclined surface 322.

According to the preferred embodiment, the second protrusion 61 on the stopper 6 has the same structure as the first protrusion 31, and includes: a third inclined surface 611, a fourth inclined surface 612, and a second flat surface 613 connecting the third inclined surface 611 and the fourth inclined surface 612.

As shown in fig. 4 and 7, the rear end of the stopper 6 has a spring 62 for providing an ejecting force to the stopper 6 and a screw 63 for providing a force opposite to the spring 62.

The assembly groove of the core back slider 2 has a step portion 22 therein, the dimension of the step portion 22 from the bottom of the assembly groove is larger than the height dimension of the first cylindrical portion 32, and the difference between the dimension of the step portion 22 from the bottom of the assembly groove and the height dimension of the first cylindrical portion 32 is the gap a, as shown in fig. 6. The effect of this clearance an is in the slider of loosing core reset process, guarantees to press into movable mould 1 earlier with stopper 6, then looses core slider 2 and begins the action again, otherwise looses core slider 2 and directly strikes stopper 6 and can't move.

According to the preferred embodiment, the cylinder connection block 3 is screw-coupled to the bottom of the cylinder 4 through the second cylindrical portion 33.

According to the preferred embodiment, the core back slide 2 is driven by two cylinders 4 simultaneously, as shown in fig. 1.

According to a preferred embodiment of the present invention, as shown in fig. 1 to 8E, the mechanical limiting mechanism works according to the following principle:

when the mechanism acts, the oil cylinder 4 retreats and moves in the oblique upward direction together with the oil cylinder connecting block 3, the first cylindrical body part 32 of the oil cylinder connecting block 3 contacts the step part 22 in the core-pulling slide block 2 after moving for a distance equal to the gap a, the core-pulling slide block 2 is driven to slide in the oblique upward direction together, when the first projection 31 on the cylinder connecting block 3 contacts the second projection 61 on the stopper 6, the limiting block 6 is pressed into the movable die 1 along the axial direction thereof, the front end of the limiting block is lower than the side surface of the bottom of the core-pulling slide block 2, when the oil cylinder connecting block 3 moves away from the limiting block 6, the limiting block 6 is pushed upwards by the spring force of the spring 62 and just extends into the concave part 21 at the bottom of the core-pulling slide block 2, the slider of loosing core 2 motion this moment targets in place the stop motion, thereby stopper 6 can prevent to loose core slider 2 gliding because the card from dropping in the slider of loosing core 2, avoids the occurence of failure.

When the mechanism is moved to reset, the oil cylinder 4 and the oil cylinder connecting block 3 move together along the oblique downward direction, the first protruding portion 31 on the oil cylinder connecting block 3 contacts the second protruding portion 61 on the limiting block 6 so as to press the limiting block 6 into the movable die 1 along the axial direction of the limiting block, when the oil cylinder connecting block 3 moves for a distance equal to the gap a, the limiting block 6 is completely pressed downwards to the side face of the bottom of the core-pulling slide block 2, and the core-pulling slide block 2 is separated from the limiting block 6 and then is continuously pushed by the oil cylinder 4 along the oblique downward direction until.

According to the utility model provides a pair of mechanical type stop gear, when the slider of loosing core move to the end the stopper through the spring bounce accomplish the locking slider action, the stopper inserts and utilizes the stopper to keep out the slider gliding in the slider bottom recess of loosing core to overcome the slider risk of dropping completely, provide the mechanical type stop gear that the security improves by a wide margin, especially a mechanical type stop gear who is applicable to instrument board day side pneumatic cylinder driven large-scale slider.

What has been described above is only the preferred embodiment of the present invention, not for limiting the scope of the present invention, but various changes can be made to the above-mentioned embodiment of the present invention. All the simple and equivalent changes and modifications made according to the claims and the content of the specification of the present invention fall within the scope of the claims of the present invention. The present invention is not described in detail in the conventional technical content.

Claims

1. The utility model provides a prevent mechanical type stop gear that slider dropped which characterized in that, mechanical type stop gear includes: the movable mould, the slider of loosing core of slidable on the movable mould, install the hydro-cylinder connecting block in the assembly groove on the slider of loosing core, be connected with the hydro-cylinder connecting block and follow the hydro-cylinder of the slider slip direction installation of loosing core, install the guide rail that provides the direction for the motion of the slider of loosing core on the movable mould, and perpendicular to looses core the motion direction of slider and install the stopper in the movable mould telescopically, wherein, first bellying has on the hydro-cylinder connecting block, the front end of stopper have can with the second bellying of first bellying butt, the lower extreme of the slider of loosing core has the depressed part that can hold the second bellying on the stopper.

2. The mechanical spacing mechanism of claim 1, wherein the cylinder connecting block comprises a large head and a small head extending upward from the upper surface of the large head, and the first protrusion is formed on the outer peripheral wall of the large head.

3. The mechanical limiting mechanism according to claim 2, wherein the assembly groove of the core-pulling slider is provided with a step portion for clamping the large end portion of the oil cylinder connecting block, so as to realize the assembly connection of the oil cylinder connecting block and the core-pulling slider.

4. The mechanical spacing mechanism of claim 3, wherein the distance between the step part and the bottom of the assembling groove is larger than the height of the big head of the oil cylinder connecting block, so as to provide a reset gap for the oil cylinder connecting block to press the spacing block into the movable die.

5. The mechanical spacing mechanism of claim 2, wherein the first protrusion on the cylinder connecting block is formed by: a first inclined surface extending obliquely downward from the upper surface of the large head, a second inclined surface extending obliquely upward from the lower surface of the large head, and a first flat surface connecting the first inclined surface and the second inclined surface.

6. The mechanical limit mechanism as claimed in claim 5, wherein a second protrusion on the limit block has the same structure as the first protrusion, the second protrusion is composed of a third inclined surface, a fourth inclined surface and a second flat surface connecting the third inclined surface and the fourth inclined surface, and the limit block can abut against the first flat surface on the cylinder connection block through the second flat surface.

7. The mechanical limiting mechanism according to claim 1, wherein the cylinder connecting block is in threaded connection with the bottom of the cylinder.

8. The mechanical spacing mechanism of claim 1, wherein the rear end of the spacing block has a spring that provides an ejection force to the spacing block.

9. The mechanical spacing mechanism of claim 8, wherein the rear end of the spacing block is further connected with a screw providing a force opposing the spring.

10. The mechanical spacing mechanism of claim 1, wherein the mounting position of the spacing block is spaced from the start position of the core back slider by a distance determined by the movement stroke of the core back slider.