Ejection mechanism and riveting gun

Abstract

The utility model discloses an ejection mechanism and a riveting gun, the ejection mechanism comprises an ejection clamp and a spring sleeve, the ejection clamp is arranged in an inner cavity of the spring sleeve, and a fixed top block arranged at the upper end of the ejection clamp extends out of the upper surface of the spring sleeve and drives the ejection clamp to move in the spring sleeve; the positioning sleeve is matched with the fixed top block and is used for limiting the ejection clamp; the ejection clamp is connected with the main ejection core through the ejection spring; the main ejector core is connected with the inner wall of the spring sleeve through the ejector core spring. The waste nail rod collecting device can automatically collect waste nail rods, so that the problem that the waste nail rods cannot be automatically collected is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical tools, in particular to an ejection mechanism and a rivet gun. Background Art

[0002] Rivet guns are common riveting tools, which are widely used in production fields such as construction, automobiles, ships, and electrical appliances.

[0003] The existing rivet guns mainly include pneumatic, manual and electric rivet guns. Pneumatic rivet guns include nail suction type rivet guns and non-nail suction type rivet guns. Both of them have a rigid requirement that they must have an air source, and the tool must be connected to the air source by an air pipe. They are noisy and not environmentally friendly, and are not convenient for outdoor and high-altitude operations; manual and electric rivet tools are easy to operate outdoors and at high altitudes, but the waste nail rods cannot automatically fall into the nail collection cup for collecting waste nail rods after riveting. Utility Model Content

[0004] The utility model aims to provide an ejection mechanism and a rivet gun to solve the problem of automatic collection of riveting waste nail rods.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] An ejection mechanism comprises: an ejection clip for clamping and releasing a nail rod; a spring sleeve, wherein the ejection clip is arranged in an inner cavity of the spring sleeve; a fixed item block arranged at the upper end of the ejection clip extends out of the upper surface of the spring sleeve and can move laterally in the spring sleeve with the ejection clip; a positioning sleeve cooperates with the fixed item block to limit the ejection clip; the ejection clip is connected to a main top core through an ejection spring; and the main top core is connected to an inner wall of the spring sleeve through a top core spring.

[0007] Furthermore, the ejection clip includes a main body, one end of the main body is provided with a protrusion facing outward, and the other end is provided with a protrusion I facing inward, forming an irregular V shape; the top diameter of the protrusion I is smaller than the diameter of the inner cavity of the main body, and the ejection spring is connected to the protrusion.

[0008] Furthermore, the ejection clip is made of elastic material.

[0009] Furthermore, the inner side wall of the main top core is configured to be a continuous inclined groove, forming an inclined groove I and an inclined groove II; the ejection spring is connected to the inclined groove I.

[0010] Furthermore, the upper end of the main top core is connected to one end of the top core spring, and the other end of the top core spring is connected to a positioning collar fixed on the inner wall of the spring sleeve.

[0011] Furthermore, a fixed top block is provided on the protruding portion of the ejection clip; a notch is provided on the upper surface of the spring sleeve, the fixed top block passes through and extends out of the notch, and is movable in the notch 11;

[0012] Furthermore, a U-shaped groove is arranged on the ejection clip positioning sleeve, and the fixed top block extending out of the groove extends into the U-shaped groove.

[0013] A rivet gun, characterized by applying the above ejection mechanism.

[0014] Further, it comprises a front bearing seat, three claws, a gun head, a screw rod, an outer sleeve, a discharge pipe and a clamping sleeve, characterized in that the ejection clamp positioning sleeve is arranged between the front bearing seat, the outer sleeve and the spring sleeve;

[0015] Furthermore, the ejection clamp is fixed on the discharge pipe; the clamping sleeve is fixed on one end of the spring sleeve close to the gun head, and the main top core and three claws are arranged in the clamping sleeve.

[0016] The utility model discloses a rivet gun which utilizes the elastic potential energy of the ejection spring to collect the rivet rods when in use, so that the gear transmission mechanism and the speed-adjustable electric rivet gun can utilize the elastic potential of the ejection spring to be instantly released and then converted into the kinetic energy of the rivet rods during use, so that the rivet rods are ejected to the nail rod collecting tube at the tail end of the waste nail guide tube, so that the device can automatically collect the waste nail rods when collecting the waste nail rods, thereby solving the problem that the waste nail rods cannot be automatically collected. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The utility model is a schematic diagram of the ejection mechanism and its application to a rivet gun.

[0018] Figure 2 It is a schematic diagram of the continuous structure of the ejection clip and the main top core of the utility model.

[0019] Figure 3 This is a schematic diagram of the state structure of the rivet gun of the utility model.

[0020] Figure 4 This is a schematic diagram II of the state structure of the rivet gun of the utility model.

[0021] Figure 5 FIG. 3 is a schematic diagram of the state structure of the rivet gun of the utility model. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0023] like Figure 1As shown, an ejection mechanism includes an ejection clip 1, an ejection spring 2 is connected to the outer wall of the ejection clip 1, and the other end of the ejection spring 2 is connected to the main top core 3. The ejection clip 1 is arranged in a spring sleeve 4, and a top core spring 6 is arranged at one end of the spring sleeve 4 close to the main top core 3; one end of the top core spring 6 is fixed to the inner wall of the spring sleeve 4, and the other end is connected to the main top core 3. An ejection clip positioning sleeve 5 is arranged on the left side of the ejection clip 1 and on the outside of the spring sleeve 4.

[0024] like Figure 2 As shown, the ejection clip 1 includes a body 101, one end of the body 101 is provided with a protrusion 102 facing outward, and one end of the spring 2 is connected to the protrusion 102. The other end of the body 101 is provided with a protrusion 1103 facing inward, which is irregularly V-shaped and resembles a claw; the diameter of the top 104 of the protrusion 1103 is smaller than the diameter of the inner cavity of the body 101. The ejection clip 1 is made of elastic material, and when the rivet nail rod is inserted into the ejection clip 1, the protrusion 1103 is deformed and relatively clamps the nail rod.

[0025] like Figure 1 , 2 As shown, the inner side wall of the main top core 3 is arranged in a continuous oblique groove shape, forming an oblique groove I301 and an oblique groove II302. The other end of the spring 2 is connected to the oblique groove I301, and the oblique groove II302 is used to limit the end of the protruding part I103, so as to achieve the function of limiting the ejection clip 1. The outer side wall of the main top core 3 is arranged in an inclined shape, and is in contact with one end of the three claws in the riveting machine which are also arranged in an inclined shape. The upper end of the main top core 3 is connected to one end of the top core spring 6, and the other end of the top core spring 6 is connected to the positioning collar 7 fixed on the inner wall of the spring sleeve 4. The main top core 3 elastically supports the three claws 8 through the connection of the top core spring 6.

[0026] like Figure 1 , 2 As shown, a fixed top block 9 is arranged on the protruding portion 102 of the ejection clip 1; a notch 11 is arranged on the upper surface of the spring sleeve 4, and the fixed top block 9 passes through and extends out of the notch 11, and is movable in the notch 11. A U-shaped groove 10 is arranged on the ejection clip positioning sleeve 5, and the fixed top block 9 extending out of the notch 11 extends into the U-shaped groove 10, so that when the U-shaped groove 10 moves backward, it is blocked and limited by the U-shaped groove 10.

[0027] When the ejection mechanism of the utility model is applied to a rivet gun, the vertical portion 501 of the ejection clip positioning sleeve 5 is arranged between the front bearing seat 11 and the outer sleeve 12, and the transverse portion 502 is arranged between the outer sleeve 12 and the spring sleeve 4. The ejection clip 1 is fixed on the discharge pipe 13. The clamping sleeve 14 is fixed to the end of the spring sleeve 4 close to the gun head, and the main top core 3 and the three claws 8 are arranged in the clamping sleeve 14, and the inner wall of the front end of the clamping sleeve 14 is arranged in an inclined shape, which is in contact with the inclined shape of the outer wall of the three claws 8.

[0028] The working principles of the ejection mechanism and the rivet gun of the utility model are as follows.

[0029] like Figure 1 The figure shows the initial state of the ejection mechanism. The rivet is inserted into the gun head, and the riveting work begins. The screw 15 moves in a straight line in the opposite direction of the inserted rivet, thereby driving the spring sleeve 4 and the clamping sleeve 14 to move backward, driving the rivet on the three-claw 8 to move backward, and the three-claw 8 is freed from the pressure at the front end of the gun mouth. At the same time, the three-claw 8 is pushed forward by the main top spring and the inclined surface force of the clamping sleeve 14, clamping the rivet. At the same time, the fixed top block 9 on the ejection clip 1 is against the U-shaped groove of the ejection clip positioning sleeve 5, and the ejection clip 1 remains fixed, so that the ejection spring 2 is compressed.

[0030] like Figure 3 , 4 As shown, when the ejection spring 2 is compressed to a certain length, the nail rod is inserted into the main top core 3 during the step-by-step riveting process, and the riveting is completed by continuing to pull back. Under the action of the protruding portion I103 of the ejection clip 1 (equivalent to the purpose of the three claws), the rivet rod is clamped, and the screw rod continues to move backward until the front end of the ejection clip 1 is fixed by the inclined groove II302 of the main top core 3, and the riveting is completed.

[0031] After riveting is completed, the screw rod 15 is reset and moves forward, thereby driving the spring sleeve 4 to move forward. When the spring sleeve 4 moves forward, it drives the rivet on the three claws 8, the ejection 1 and the compressed ejection spring 2 to move forward.

[0032] like Figure 5 As shown, the side walls opposite to the gun head 16 and the three claws 8 are provided with oblique guide surfaces, and the side walls in contact with the three claws 8 and the main top core 3 are provided with mutual guide surfaces. When the three claws 8 are in contact with the gun head 16 and are under pressure, the three claws 8 are opened by the gun head 16, so that the rivet rod is released by the three claws 8. At the moment when the three claws 8 are released, the ejection clip 1 fixed by the inclined groove II302 is also released instantly. At this time, under the action of the compressed ejection spring 2, the nail rod is ejected into the nail rod collection tube at the tail of the discharge pipe, thereby completing the collection of the waste nail rod. Finally, return to Figure 1 state.

[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An ejection mechanism, characterized in that: include: Ejection clamps, used to hold and release nail rods; A spring sleeve, wherein the ejection clip is arranged in the inner cavity of the spring sleeve; a fixed item block arranged at the upper end of the ejection clip extends out of the upper surface of the spring sleeve and can move in the spring sleeve with the ejection clip; Positioning sleeve, cooperate with fixed item block, limit ejection clip; The ejection clip is connected to the main top core through an ejection spring; the main top core is connected to the inner wall of the spring sleeve through a top core spring.

2. The ejection mechanism according to claim 1, characterized in that: The ejection clip comprises a body, one end of which is provided with a protrusion facing outward, and the other end is provided with a protrusion I facing inward, forming a V shape; the top diameter of the protrusion I is smaller than the diameter of the inner cavity of the body, and the ejection spring is connected to the protrusion.

3. The ejection mechanism according to claim 1, characterized in that: The ejection clip is made of elastic material.

4. The ejection mechanism according to claim 1, characterized in that: The inner side wall of the main top core is configured to be a continuous oblique groove, forming an oblique groove I and an oblique groove II; the ejection spring is connected to the oblique groove I.

5. The ejection mechanism according to claim 1, characterized in that: The upper end of the main top core is connected to one end of the top core spring, and the other end of the top core spring is connected to a positioning collar fixed on the inner wall of the spring sleeve.

6. The ejection mechanism according to claim 2, characterized in that: A fixed top block is arranged on the protruding part of the ejection clip; a notch is arranged on the upper surface of the spring sleeve, the fixed top block passes through and extends out of the notch, and is movable in the notch.

7. The ejection mechanism according to claim 6, characterized in that: A U-shaped groove is arranged on the ejection clip positioning sleeve, and a fixed top block extending out of the groove extends into the U-shaped groove.

8. A rivet gun, characterized in that: An ejection mechanism according to any one of claims 1 to 7 is used.

9. A rivet gun according to claim 8, characterized in that: The utility model comprises a front bearing seat, three claws, a gun head, a screw rod, an outer sleeve, a discharging pipe and a clamping sleeve, and an ejection clamp positioning sleeve is arranged between the front bearing seat, the outer sleeve and the spring sleeve.

10. A rivet gun according to claim 9, characterized in that: The ejection clip is fixed on the discharge pipe; the clamping sleeve is fixed on one end of the spring sleeve close to the gun head, and the main top core and three claws are arranged in the clamping sleeve.

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