CN102166605A - Reel core-pulling guide mechanism - Google Patents

Abstract

The invention discloses a reel core-pulling guide mechanism which comprises a core rod, a fixed guide block, an up-and-down floating block, a vertical ejector rod, a guide block, a forced resetting block, a forced resetting stamping die and a horizontal guide rail, wherein the front end of the forced resetting block is connected with the guide block, the interior of the forced resetting block is provided with a bottom-to-top guide groove, and the guide groove is provided with a first guide inclined surface and a second inclined surface; the upper end of the forced resetting stamping die is in a vertical shape, the lower end of the forced resetting stamping die is bent and arranged in the guide groove, when the forced resetting stamping die moves from up to down, a lower bending inclined surface at the lower end of the forced resetting stamping die is contacted with the first guide inclined surface of the guide groove, and when the forced resetting stamping die moves from down to up, an upper bending inclined surface at the lower end of the forced resetting stamping die is contacted with the second guide inclined surface of the guide groove; and the guide block and the forced resetting block are arranged on the horizontal guide rail. Compared with the prior art, the reel core-pulling guide mechanism disclosed by the invention has the advantages that a simple mechanical structure is adopted, thus the operations that the core rod is transmitted to the operating position when the reeling operation begins and the core-pulling and resetting of the core rod are completed when the reeling operation is completed are realized, thereby improving the production efficiency.

Description

A rolling core pulling guide mechanism

technical field

The invention discloses a guiding mechanism, and in particular relates to a core-pulling guiding mechanism for a stamping machine when rolling.

Background technique

After the stamping machine completes the stamping and rolling action, the mandrel is surrounded by the rolled material, which has certain restrictions on the blanking of the material, and the material can only be pulled down horizontally along the direction of mandrel extension. materials, thereby reducing the production efficiency of the punching and rolling machine and limiting its degree of automation. Therefore, there is an urgent need to develop a guiding mechanism that can synchronously complete the core-pulling action of the mandrel during the rolling process, so as to improve production efficiency.

Contents of the invention

In view of the above defects, the object of the present invention is to provide a guiding mechanism that can synchronously complete the core pulling action during the rolling process.

In order to achieve the above object, the technical scheme adopted in the present invention is:

A rolling core pulling guide mechanism of the present invention, comprising

a mandrel;

A fixed guide block, which has a vertical guide groove, and the front end of the mandrel is installed in the guide groove;

An upper and lower floating block, which has a mounting hole, the mandrel is installed in the mounting hole, and the mandrel can slide horizontally back and forth in the mounting hole;

A vertical ejector rod, the lower end of which has a return spring, the upper end of which is in contact with the bottom of the upper and lower floating blocks;

A guide block, which has a vertical guide rail or a slot, and the rear end of the mandrel is installed on the vertical guide rail of the guide block or in the slot;

A forced reset block, the front end of which is connected to the guide block, and there is a guide groove penetrating up and down inside it, and the guide groove has a first guide slope and a second guide slope;

A forced return punch, the upper end of which is vertical, and the lower end is bent and placed in the guide groove. During the movement of the forced reset punch from top to bottom, the bent lower slope of the lower end is in contact with the first guide slope of the guide groove , during the movement of the forced reset punch from bottom to top, the bent upper slope at the lower end is in contact with the second guide slope of the guide groove;

A horizontal guide rail, on which the guide block and the forced reset block are installed.

In a preferred embodiment of the present invention, a horizontal push rod is also included, the front end of the horizontal push rod is connected with the forced reset block, and the rear end has a return spring.

In a preferred embodiment of the present invention, the front end of the horizontal push rod has a thread structure.

In a preferred embodiment of the present invention, the lengths of the first guiding slope and the second guiding slope are equal, and the inclination angles are consistent.

In a preferred embodiment of the present invention, the bending angle of the lower end of the forced reset punch is consistent with the inclination angles of the first guiding slope and the second guiding slope.

Compared with the prior art, the present invention has the following advantages: the simple mechanical structure is used to realize the delivery of the mandrel into the working position at the beginning of the rolling, and the core-pulling reset of the mandrel is completed at the same time after the rolling is completed, thereby improving the production efficiency .

Description of drawings

Fig. 1 is a structural representation of an embodiment of the present invention;

Fig. 2 is a structural schematic view of the embodiment of Fig. 1 when it is under pressure and performs rolling action;

Fig. 3 is a schematic structural view of the embodiment of Fig. 1 when the rolling action is completed.

Among them, 1 is the upper mold, 2 is the material, 3 is the lower mold, 4 is the fixed guide block, 5 is the vertical ejector rod, 6 is the spring, 7 is the upper and lower floating block, 8 is the guide rail, 9 is the guide block, and 10 is the forced reset Block, 11 is a mandrel, 12 is a forced return punch, 13 is a fixed block, 14 is a horizontal push rod, 15 is a stamping head, 16 is a patrix, 17 is a lower die, and 18 is a machine base.

Detailed ways

The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, so as to define the protection scope of the present invention more clearly.

As shown in Figure 1, this embodiment includes an upper mold 1, a material 2, a lower mold 3, a fixed guide block 4, a vertical ejector rod 5, a spring 6, an upper and lower floating block 7, a guide rail 8, a guide block 9, and a forced reset block 10 , Mandrel 11, forced reset punch 12, fixed block 13, horizontal ejector rod 14, stamping head 15, upper die holder 16, lower die holder 17, machine base 18.

The specific position and connection relationship of each component is: the upper mold 1 is installed on the upper mold base 16, the lower mold 3 is installed on the lower mold base 17, and the material 2 is floated between the upper mold 1 and the lower mold 3 by the auxiliary device , the position where the material 2 needs to be rounded is located at the same level as the mandrel 11, the fixed guide block 4 and the upper and lower floating blocks 7 are installed on the front end of the mandrel 11, and the lower end of the upper and lower floating blocks 7 is in contact with the vertical mandrel 5 with a spring . The fixed guide block 4 is fixed relative to the machine base 18, can be fixed on the lower mold base 17, and can also be fixed on the machine base 18. The present invention does not specifically limit its fixing method and fixing position, which can be selected according to actual needs; The up and down floating block 7 can float up and down relative to the machine base 18 . There are vertical guide rails or vertical draw-in slots in the guide block 9, and the rear end of the mandrel 11 is installed therein. The guide block 9 and the fixed guide block 4 work together to limit the vertical movement track of the mandrel 11. The rear end face of the guide block 9 is connected with the front end face of the forced reset block 10 through a fixing element, and they are installed on the horizontal guide rail 8 together. The rear end surface of the forced reset block 10 is connected with a horizontal ejector rod 14 with a spring. There is a guide groove through the inside of the forced reset block 10. The forced reset punch 10 is bent, and the upper end is connected with the stamping head 15. The lower end is placed in the guide groove, and the guide groove has two limiting slopes consistent with the bending slopes of the forced reset punch 10, and the forced reset punch 10 can pass through the guide groove.

As shown in Fig. 1 in conjunction with Fig. 2 and Fig. 3, describe the working process of the present invention in detail:

A. Pressing downward drives the mandrel to the working position, as shown in Figure 2: the punching head 15 starts to punch downward, and the punching head 15 drives the forced reset punch 12 connected thereto to move downward, and the forced reset punch The bent lower slope of 12 is in contact with the first guiding slope of the forced reset block 10, and the downward impulse generated by the downward movement of the forced reset punch 12 can decompose a part of the horizontal forward force on the slope, thereby driving the forced reset The block 10 moves forward along the horizontal guide rail 8, and further drives the mandrel 11 forward to enter the working position;

B. Continue to press downward to complete the stamping roll, as shown in Figure 3: as the stamping head 15 continues to move downward, the stamping head 15 then drives the upper die holder and the upper die to move downward until it drives the material 2 Together with the mandrel 11 and the lower mold to complete the punching and rolling action, the mandrel 11 drives the upper and lower floating blocks 7 to move downward, and the upper and lower floating blocks 7 further press the vertical ejector rod 5 downward to compress the return spring 6.

C. Reset upward to the position shown in Figure 2: driven by the return stroke of the punching machine, the punch head 15 drives the forced reset punch 12 to reset upward, and the upper die base 16, upper die 1, and material 2 are also driven by the corresponding return stroke Resetting upwards, under the spring restoring force of the return spring 6 of the vertical push rod 5, the vertical push rod 5 resets upwards, driving the upper and lower floating blocks 7 to reset upwards, thereby further driving the mandrel 11 to reset upwards.

D. Pull the core back to the position shown in Figure 1: After the horizontal reset is achieved, the bent upper slope of the forced reset punch 12 is in contact with the second guide slope of the forced reset block 10, and the force of the forced reset punch 12 to reset upward , a part of the horizontal backward force is decomposed on the inclined surface, thereby driving the forced reset block 10 to move backward along the horizontal guide rail, and further driving the mandrel 11 backward to complete the core pulling action. Due to the limited upward reset force of the stamping head 15, in order to ensure the smooth reset of the forced reset block 10, this embodiment also includes a horizontal push rod connected to the rear end of the forced reset block 10, and the forced reset block 10 drives the horizontal push rod Moving forward, the return spring at the rear end of the horizontal mandrel is compressed, and when returning backward, the return spring will also provide a corresponding horizontal return force. The front end of the horizontal ejector rod 14 in this embodiment has a threaded structure, which can be directly threaded with the forced reset block 10, and can also be connected and fixed by other connecting parts such as bolts and screws, which will not be listed one by one in the present invention. .

The above is only a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto, and any person skilled in the art may make changes or modifications without creative work within the technical scope disclosed in the present invention. Replacement should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be determined by the protection scope defined in the claims.

Claims (5)

1. A rolling core-pulling guiding mechanism, characterized in that, comprising a mandrel; A fixed guide block, which has a vertical guide groove, and the front end of the mandrel is installed in the guide groove; An upper and lower floating block, which has a mounting hole, the mandrel is installed in the mounting hole, and the mandrel can slide horizontally back and forth in the mounting hole; A vertical ejector rod, the lower end of which has a return spring, the upper end of which is in contact with the bottom of the upper and lower floating blocks; A guide block, which has a vertical guide rail or a slot, and the rear end of the mandrel is installed on the vertical guide rail of the guide block or in the slot; A forced reset block, the front end of which is connected to the guide block, and there is a guide groove penetrating up and down inside it, and the guide groove has a first guide slope and a second guide slope; A forced return punch, the upper end of which is vertical, and the lower end is bent and placed in the guide groove. During the movement of the forced reset punch from top to bottom, the bent lower slope of the lower end is in contact with the first guide slope of the guide groove , during the movement of the forced reset punch from bottom to top, the bent upper slope at the lower end is in contact with the second guide slope of the guide groove; A horizontal guide rail, on which the guide block and the forced reset block are installed. 2. The rolling core-pulling guide mechanism according to claim 1, further comprising a horizontal ejector rod, the front end of which is connected to the forced reset block, and a return spring at the rear end. 3 . The rolling core-pulling guide mechanism according to claim 2 , wherein the front end of the horizontal ejector rod has a threaded structure. 4 . 4 . The rolling core-pulling guiding mechanism according to claim 1 , wherein the lengths of the first guiding slope and the second guiding slope are equal, and the inclination angles are consistent. 5 . The rolling core-pulling guide mechanism according to claim 4 , wherein the bending angle of the lower end of the forced return punch is consistent with the inclination angles of the first guiding slope and the second guiding slope. 6 .

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