Precision metal shutter with adjustable stroke

Abstract

The present invention aims to provide a precision metal shutter with settable stroke that has stable action, high precision and no virtual gap. The present invention comprises a shutter body arranged on a pin plate, a first sleeve arranged on the shutter body, a second sleeve sleeved on the outer wall of the first sleeve and connected to the front mold, and a metal buckle rod movably fitted in the first sleeve, the metal buckle rod is provided with a plurality of grooves, the first sleeve is provided with a plurality of circular holes corresponding to the grooves, a gap is provided between the first sleeve and the second sleeve, and corresponding steel balls are movably fitted on the grooves, the circular holes and the gap. The present invention is applied to the technical field of shutter structures.

Description

Technical Field

[0001] The invention relates to the technical field of a switch structure, and in particular to a precise metal switch with a settable stroke. Background Art

[0002] In traditional openers and shutters, conventional practices include the following two methods: 1. Adding a spring to the bottom of the ejector plate. The spring is unstable in power, and the ejector will get stuck and fail if it does not move smoothly. 2. Adding a rubber plug to the front to drive the movable plate. The rubber plug uses colloid elasticity to achieve the up and down movement of the ejector seat fixing plate. However, the rubber plug is easy to pull powder, and the powder falling on the mold will damage the mold. The rubber plug needs to be replaced frequently, which is not feasible for long-term production. Summary of the invention

[0003] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a precision metal switch with adjustable stroke, stable action, high precision and no virtual gap.

[0004] The technical solution adopted by the present invention is: the present invention includes an opener and shutter body arranged on a pin plate, a first sleeve arranged on the opener and shutter body, a second sleeve sleeved on the outer wall of the first sleeve and connected to the front mold, and a metal buckle rod movably fitted in the first sleeve, the metal buckle rod is provided with a plurality of grooves, the first sleeve is provided with a plurality of circular holes corresponding to the grooves one by one, a gap is provided between the first sleeve and the second sleeve, and corresponding steel balls are movably fitted on the grooves, the circular holes and the gap.

[0005] It can be seen from the above scheme that when the metal buckle rod makes reciprocating motion on the first sleeve, the front mold and the rear mold are in a closed or disengaged state, that is, when the steel ball is on the gap or on the groove, the stroke of the opener and closer body can be changed by changing the distance of relative movement between the first sleeve and the second sleeve. By replacing the rubber plug of traditional technology with a metal lock buckle, the stroke of the opener and closer body can be set. Compared with the rubber plug, the metal buckle has greater pulling force, stable movement, high movement accuracy, and no virtual gap.

[0006] A preferred solution is that the shutter body includes a main pull rod fixedly mounted on the ejector plate and a metal buckle body provided on one end of the main pull rod, and the metal buckle body is connected to the main pull rod by a plurality of fixing bolts.

[0007] It can be seen from the above scheme that the metal buckle body and the main body pull rod are connected by the fixing bolt, so that the metal buckle body and the main body pull rod are detachably connected, which is convenient for future maintenance and replacement of parts.

[0008] A preferred solution is that the first sleeve and the metal buckle body are connected via a plurality of fixing pins.

[0009] It can be seen from the above scheme that when the mold is in the closed state, when the metal buckle rod moves, due to the setting of the steel ball and the groove, the first sleeve can move with the metal buckle rod, and due to the setting of the fixing pin, the metal buckle body can move with the first sleeve.

[0010] A preferred solution is that a plurality of the grooves are evenly arranged around the central axis of the metal buckle insertion rod.

[0011] A preferred solution is that the plurality of circular holes are evenly arranged around the central axis of the first sleeve.

[0012] A preferred solution is that the opening end of the second sleeve is provided with a guide surface, and the guide surface is matched with the steel ball.

[0013] It can be seen from the above scheme that when the front mold and the rear mold are closed, that is, when the metal buckle rod moves toward the direction of the first sleeve, due to the setting of the guide surface, the guide surface applies an extrusion force to the steel ball, so that the steel ball can fall from the gap and through the circular hole to the groove.

[0014] A preferred solution is that a curved surface is provided at the bottom of the metal buckle insertion rod, and the curved surface is matched with the upper end opening of the first sleeve.

[0015] It can be seen from the above scheme that when the metal buckle rod moves toward the first sleeve, the setting of the arc surface plays a role of guiding and limiting.

[0016] A preferred solution is that the adjustable stroke precision metal shutter further includes a connecting rod disposed on the rear mold, and the connecting rod is connected to the metal buckle insertion rod.

[0017] It can be seen from the above scheme that by applying power to the rear mold, the rear mold drives the metal buckle insertion rod to move through the connecting rod, thereby completing the mold closing or disengagement state of the front mold and the rear mold. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the present invention;

[0019] Figure 2 is a schematic diagram of the principle that the front mold and the rear mold are in a mold closing state;

[0020] Figure 3 The schematic diagram of the principle of the front mold separating from the rear mold Figure 1 ;

[0021] Figure 4 The schematic diagram of the principle of the front mold separating from the rear mold Figure 2 . DETAILED DESCRIPTION

[0022] like Figures 1 to 4 As shown, in this embodiment, the present invention includes an opener body 2 arranged on the ejector plate 1, a first sleeve 3 arranged on the opener body 2, a second sleeve 5 sleeved on the outer wall of the first sleeve 3 and connected to the front mold 4, a metal buckle plug rod 6 movably fitted in the first sleeve 3, and a connecting rod 18 arranged on the rear mold 17, the connecting rod 18 is connected to the metal buckle plug rod 6, the metal buckle plug rod 6 is provided with a plurality of grooves 7, the first sleeve 3 is provided with a plurality of round holes 8 corresponding to the grooves 7, the first sleeve 3 is provided with a plurality of round holes 8 corresponding to the grooves 7, the first sleeve 3 and the A gap 9 is provided between the second sleeve 5, and corresponding steel balls 10 are movably fitted on the groove 7, the circular hole 8 and the gap 9. In this design, the second sleeve 5 is fixedly mounted on the front mold 4; when the metal buckle rod 6 reciprocates on the first sleeve 3, the front mold 4 and the rear mold 17 are in a mold closing or disengaging state, that is, when the steel ball 10 is on the gap 9 or on the groove 7, the stroke of the shutter body 2 can be changed by changing the distance of relative movement between the first sleeve 3 and the second sleeve 5.

[0023] Furthermore, if Figure 1 As shown, the shutter body 2 includes a main pull rod 11 fixed on the ejector plate 1 and a metal buckle body 12 arranged on one end of the main pull rod 11, and the metal buckle body 12 is connected to the main pull rod 11 by a plurality of fixing bolts 13; the first sleeve 3 is connected to the metal buckle body 12 by a plurality of fixing pins 14. In this design, when the metal buckle insertion rod 6 moves, the first sleeve 3 drives the metal buckle body 12 to move through the fixing pin 14, and the metal buckle body 12 drives the main pull rod 11 through the fixing screw, so that the metal buckle insertion rod 6 drives the shutter body 2 to move.

[0024] Furthermore, if Figure 1 and Figure 4 As shown, a plurality of the grooves 7 are evenly arranged around the central axis of the metal buckle rod 6; a plurality of the circular holes 8 are evenly arranged around the central axis of the first sleeve 3. In this design, the grooves 7 and the circular holes 8 are evenly arranged, so that the steel balls 10 can move stably, making the operation of the opener and closer more stable.

[0025] Furthermore, if Figures 1 to 4As shown, a guide surface 15 is provided at the open end of the second sleeve 5, and the guide surface 15 is matched with the steel ball 10; an arc surface 16 is provided at the bottom of the metal buckle rod 6, and the arc surface 16 is matched with the upper end opening of the first sleeve 3. The setting of the guide surface 15 provides power for the steel ball 10.

[0026] Working principle of the present invention:

[0027] The front mold 4 and the rear mold 17 are in a mold closing state. Figure 2 As shown, that is, the steel ball 10 is on the groove 7, and when the metal buckle rod 6 moves away from the second sleeve 5, the shutter body 2 and the ejector plate 1 move together with the metal buckle rod 6. At this time, the first sleeve 3 and the second sleeve 5 move relative to each other, and the metal buckle rod 6 continues to move. At the same time, the groove 7 applies a thrust to the steel ball 10, so that the steel ball 10 breaks away from the groove 7 and moves from the circular hole 8 to the gap 9. Figure 3 and Figure 4 As shown, the metal buckle rod 6 is separated from the first sleeve 3 , and the shutter body 2 no longer moves with the metal buckle rod 6 .

[0028] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions and variations of these embodiments are made without departing from the principles and spirit of the present invention, and still fall within the scope of protection of the present invention.

Claims

1. A precision metal switch with adjustable stroke, characterized in that: It comprises an opener and shutter body (2) arranged on a pin plate (1), a first sleeve (3) arranged on the opener and shutter body (2), a second sleeve (5) sleeved on the outer wall of the first sleeve (3) and connected to a front mold (4), and a metal buckle insertion rod (6) movably fitted in the first sleeve (3), the metal buckle insertion rod (6) being provided with a plurality of grooves (7), the first sleeve (3) being provided with a plurality of round holes (8) corresponding to the grooves (7), a gap (9) being provided between the first sleeve (3) and the second sleeve (5), and corresponding steel balls (10) being movably fitted on the grooves (7), the round holes (8) and the gap (9); the settable stroke precision metal opener and shutter further comprises a connecting rod (18) arranged on a rear mold (17), the connecting rod (18) being connected to the metal buckle insertion rod (6).

2. The adjustable stroke precision metal switch according to claim 1, characterized in that: The shutter body (2) comprises a main pull rod (11) fixedly mounted on the ejector plate (1) and a metal buckle body (12) provided on one end of the main pull rod (11); the metal buckle body (12) and the main pull rod (11) are connected via a plurality of fixing bolts (13).

3. The adjustable stroke precision metal switch according to claim 2, characterized in that: The first sleeve (3) and the metal buckle body (12) are connected via a plurality of fixing pins (14).

4. The adjustable stroke precision metal shutter according to claim 1, characterized in that: A plurality of the grooves (7) are evenly arranged around the central axis of the metal buckle insertion rod (6).

5. The adjustable stroke precision metal shutter according to claim 1, characterized in that: The plurality of circular holes (8) are evenly arranged around the central axis of the first sleeve (3).

6. The adjustable stroke precision metal shutter according to claim 1, characterized in that: The opening end of the second sleeve (5) is provided with a guide surface (15), and the guide surface (15) is arranged in cooperation with the steel ball (10).

7. The adjustable stroke precision metal switch according to claim 1, characterized in that: The bottom of the metal buckle insertion rod (6) is provided with a curved surface (16), and the curved surface (16) is arranged to cooperate with the upper end opening of the first sleeve (3).

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