Rivet cold pressing device for bottle cap

Abstract

A rivet cold pressing device for a bottle cap comprises a machine base, a frame body is arranged in the machine base, a first supporting plate of the frame body is provided with a fixed seat, a movable seat is arranged on the upper portion of the fixed seat, a fixed groove is formed in the movable seat, an ejector pin hole is formed in the position, below a rivet hole, of the movable seat, a lower connecting plate is arranged on the fixed seat, and a lower ejector pin is arranged on the lower connecting plate. An upper pressing structure is further arranged on the upper portion of the upper pressing mechanism and comprises a lifting plate, an upper connecting plate is arranged at the bottom of the lifting plate, an upper ejector pin is arranged on the upper connecting plate, the upper pressing structure and the lifting plate are pressed downwards to drive the upper ejector pin to press the rivet into the rivet hole from the upper portion, and the movable seat moves towards the lower connecting plate under the action of the upper ejector pin. The lower ejector pin is pressed against the bottom of the rivet hole, and the rivet is pressed in the rivet hole by means of positioning and supporting of the bottom of the lower ejector pin. In the rivet assembling process, operation is convenient, use is easy, and the assembling production efficiency of bottle caps of water bottle products is greatly improved.

Description

Technical Field

[0001] The utility model relates to the field of production and processing of water cups, in particular to a rivet cold pressing device for bottle caps. Background Art

[0002] When most water cup products are molded and assembled, their bottle caps refer to Figure 6 , especially the rivet holes between the water outlet cover and the dust cover of the bottle cap need to be installed with rivets to rotate and connect them together. At present, this assembly method is mainly based on manual assembly. First, after the water outlet cover and the dust cover of the bottle cap are pre-positioned, the rivets are pre-inserted into the rivet holes, and the rivets are knocked into the rivet holes by a rubber hammer. Since the water outlet cover and the dust cover of the bottle cap are special-shaped structures, the manual rivet connection between the water outlet cover and the dust cover of the bottle cap requires the water outlet cover and the waterproof cover of the bottle cap to be positioned at the same time and the rivet holes to be aligned. In the process of knocking the rivets, it is also necessary to ensure that the rivets are coaxially inserted in the rivet holes. Therefore, the assembly process is time-consuming and labor-intensive, which is not conducive to improving production efficiency. At the same time, with the increasing labor costs in recent years and the phenomenon of labor shortage in recent years, the production cost of forming and assembling the product components of water cup products has remained high. Therefore, it is urgent to propose a mechanical automation degree of rivet assembly of the bottle cap of a water cup product, so as to achieve the purpose of improving efficiency and reducing costs. Summary of the invention

[0003] The utility model aims to provide a rivet cold pressing device for a bottle cap, aiming to solve the rivet assembly process between a water outlet cover and a dust cover of a bottle cap with a special-shaped structure, for a water cup product.

[0004] In view of this, the technical solution provided by the utility model is as follows: a rivet cold pressing device for bottle caps, comprising a machine base, a frame body is provided inside the machine base, the frame body comprises a first support plate and a second support plate arranged relatively up and down, the first support plate and the second support plate are connected together by a support rod, the first support plate is provided with a fixed seat, a movable seat elastically movable up and down is provided on the upper part of the fixed seat, a fixing groove for fixing a water outlet cover and a dust cover of the bottle cap is provided on the movable seat, the movable seat is provided with an ejector hole below the rivet hole, and the fixed seat is provided with a lower connecting The movable seat is provided with an upper pressing structure for pressing the rivet, and the upper pressing structure includes a lifting plate, and an upper connecting plate is provided at the bottom of the lifting plate, and an upper ejector corresponding to the rivet hole is provided on the upper connecting plate. By means of the upper pressing structure, the lifting plate is pressed downward to drive the upper ejector to press the rivet into the rivet hole from the top. Under the action of the upper ejector, the movable seat moves toward the lower connecting plate, so that the lower ejector is pressed against the bottom of the rivet hole. The rivet is pressed into the rivet hole by the bottom positioning support of the lower ejector.

[0005] Furthermore, the upward pressing structure includes a cylinder, which is fixed on the second support plate. The telescopic rod of the cylinder is connected to the lifting plate through the second support plate. By extending the cylinder, the lifting plate is pressed down to achieve the pressing of the rivets.

[0006] Furthermore, an elastic top column is provided between the fixed seat and the movable seat, and the elastic top column includes an upper sleeve, a spring and a lower sleeve. The lower sleeve is fixed on the fixed seat, and the lower sleeve is hollow inside. The upper sleeve is fixedly connected to the bottom of the movable seat by bolts. The upper sleeve is hollow inside, and the upper sleeve is movably sleeved on the outside of the lower sleeve. A spring is provided inside the lower sleeve, and the upper part of the spring is supported in the upper sleeve. By means of the spring, the upper sleeve is movably and elastically connected to the lower sleeve.

[0007] Furthermore, a limit rod for the lifting plate to slide is provided between the fixing seat and the second support plate, and a linear bearing corresponding to the limit rod is provided on the lifting plate, and a sliding fit is formed between the limit rod and the lifting plate by means of the linear bearing. Through the linear bearing, the lifting plate is pressed down more smoothly, so that the upper ejector pin can more accurately position the rivet into the rivet hole where the rivet is pressed.

[0008] The utility model discloses that when assembling the rivets between the water outlet cover and the dust cover of the water cup product, the water outlet cover and the dust cover are first buckled together and the rivet holes are aligned. Then the water outlet cover and the dust cover are simultaneously positioned on the movable seat, a rivet is put into the rivet hole, the rivet is pre-inserted into the rivet hole, the cylinder is started, and the cylinder presses down so that the upper ejector pin on the lifting plate presses the rivet. Under the action of the upper ejector pin, the movable seat elastically descends synchronously. The pressing action of the upper nail pin causes the rivet to be inserted into the rivet hole. At the same time, after the movable seat descends, the lower ejector pin can abut against the bottom of the rivet hole. Therefore, with the support of the lower positioning pin, the rivet will not fall out of the rivet hole after being pressed down.

[0009] The utility model provides elastic buffering during the pressing process of the rivet by lowering the elasticity of the movable seat, thereby preventing the pre-inserted rivet from being deflected by the instantaneous pressure during the pressing process, so that the rivet can be better inserted into the rivet hole. At the same time, when the movable seat is lowered onto the lower ejector pin, the rivet can be prevented from being excessively pressed in due to the supporting effect of the lower ejector pin. The utility model is convenient to operate and simple to use during the assembly process of the rivet, and greatly improves the assembly production efficiency of the bottle cap of the water bottle product. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a schematic diagram of the three-dimensional structure of the rivet cold pressing device.

[0011] Figure 2 This is one of the internal structure diagrams of the rivet cold pressing device.

[0012] Figure 3 This is the second schematic diagram of the internal structure of the rivet cold pressing device.

[0013] Figure 4 for Figure 2 main view.

[0014] Figure 5 It is a schematic diagram of the three-dimensional structure of the movable seat.

[0015] Figure 6 It is a schematic diagram of the three-dimensional structure of the bottle cap.

[0016] Figure 7 It is a schematic diagram of the internal cross-sectional structure of the elastic top column.

[0017] Among them: 1-machine base, 2-frame, 21-first support plate, 22-second support plate, 23-support rod, 24-limit rod, 3-cylinder, 4-lifting plate, 41-linear bearing, 42-upper connecting plate, 43-upper ejector, 5-movable seat, 51-fixing groove, 52-ejector hole, 6-bottle cap, 61-water outlet cover, 62-dust cover, 63-rivet hole, 7-fixed seat, 71-lower connecting plate, 72-lower ejector, 8-elastic ejector column, 81-upper sleeve, 82-spring, 83-lower sleeve. DETAILED DESCRIPTION

[0018] The following is a brief description of the implementation of the present utility model in conjunction with the accompanying drawings.

[0019] Reference Figure 6 The bottle cap 6 includes a water outlet cover 61 and a dust cover 62. The dust cover 62 and the water outlet cover 61 are rotatably connected by installing rivets through rivet holes 63, so that the dust cover 62 can be covered on the water outlet cover 61. The dust cover 62 and the water outlet cover 61 are special-shaped structures and cannot be placed on the same horizontal plane and rivets cannot be installed. Therefore, they need to be fixed and positioned manually or by other means during installation, and then the rivets are inserted for assembly after positioning.

[0020] A rivet cold pressing device for bottle caps, referring to 1- Figure 4 , including a base 1, the base 1 is used to support the internal structure, the base 1 is installed with a switch key for controlling the cylinder 3, a frame 2 is provided inside the base 1, the frame 2 includes a first support plate 21 and a second support plate 22 arranged relatively up and down, the first support plate 21 and the second support plate 22 are connected together by a support rod 23, wherein a fixed seat 7 is provided on the first support plate 21, and a movable seat 5 that moves elastically up and down is provided on the upper part of the fixed seat 7, referring to Figure 5 The movable seat 5 is provided with a fixing groove 51 for fixing the water outlet cover 61 and the dust cover 62 of the bottle cap 6. After the water outlet cover 61 and the dust cover 62 are positioned, the rivet hole 63 is located between the fixing grooves 51. The movable seat 5 is provided with an ejector hole 52 below the rivet hole 63. The ejector hole 52 is used to support and make way for the lower ejector 72. The fixed seat 7 is provided with a lower connecting plate 71 on the side facing the movable seat 5. The lower connecting plate 71 is provided with a lower ejector 72 that is directly opposite to the rivet hole 63. The upper part of the movable seat 5 is also provided with an upper pressing structure for pressing the rivet. The upper pressing structure includes a lifting plate 4 and a cylinder 3. The bottom of the lifting plate 4 is provided with an upper connecting plate 4 2. An upper ejector pin 43 corresponding to the rivet hole 63 is provided on the upper connecting plate 42. The cylinder 3 is fixed on the second supporting plate 22. The telescopic rod of the cylinder 3 is connected to the lifting plate 4 through the second supporting plate 22. When the cylinder 3 is extended, the lifting plate 4 can be pressed down to realize the pressing of the rivet. Therefore, through the upper pressing structure, the lifting plate 4 presses down to drive the upper ejector pin 43 to press the rivet into the rivet hole 63 from the top. The movable seat 5, under the action of the upper ejector pin 43, moves toward the lower connecting plate 71, so that the lower ejector pin 72 presses on the bottom of the rivet hole 63. The bottom of the lower ejector pin 63 positions and supports the rivet, thereby realizing that the rivet is pressed into the rivet hole 63.

[0021] In this embodiment, the movable seat 5 is elastically movable, and an elastic top column 8 is provided between the fixed seat 7 and the movable seat 5. Figure 7The elastic ejector column 8 comprises an upper sleeve 81, a spring 83 and a lower sleeve 82. The lower sleeve 82 is fixed on the fixed seat 7. The lower sleeve 82 is hollow inside. The upper sleeve 81 is fixedly connected to the bottom of the movable seat 5 by bolts. The upper sleeve 81 is hollow inside. The upper sleeve 81 is movably sleeved on the outside of the lower sleeve 82. A spring 83 is arranged inside the lower sleeve 82. The upper part of the spring 83 is supported in the upper sleeve 81. The upper sleeve 81 is movable and elastically connected to the lower sleeve 82 through the spring 83. Therefore, during the rivet assembly process, the elasticity of the movable seat 5 decreases, so that the rivet has elastic buffering during the pressing process, so as to avoid the pre-inserted rivet from being offset by instantaneous pressure during the pressing process. Therefore, the rivet can be better inserted into the rivet hole 63. At the same time, when the movable seat 5 descends to the lower ejector pin 72, the rivet can be prevented from being pressed in excessively due to the supporting effect of the lower ejector pin 72.

[0022] In this embodiment, a limit rod 24 is provided between the fixed seat 7 and the second support plate 22 for the lifting plate 4 to slide. A linear bearing 41 corresponding to the limit rod 24 is provided on the lifting plate 4. Through the linear bearing 41, a sliding fit is formed between the limit rod 24 and the lifting plate 4, so that the lifting plate 4 is pressed down more smoothly, and the upper ejector pin 43 can more accurately position the rivet in the rivet hole 63 where the rivet is pressed.

[0023] In this embodiment, when the water outlet cover 61 and the dust cover 62 of the water cup product are assembled by rivets, the water outlet cover 61 and the dust cover 62 are first buckled together, and the rivet holes 63 are aligned, and then the water outlet cover 61 and the dust cover 62 are positioned on the movable seat 5 at the same time, and a rivet is placed in the rivet hole 63. The rivet is pre-inserted into the rivet hole 63, and the cylinder 3 is started. The cylinder 3 presses down so that the upper ejector pin 43 on the lifting plate 4 presses the rivet. Under the action of the upper ejector pin 43, the movable seat 5 elastically descends synchronously. The pressing action of the upper nail pin 43 makes the rivet inserted into the rivet hole 63. At the same time, after the movable seat 5 descends, the lower ejector pin 72 can abut against the bottom of the rivet hole 63. Therefore, with the support of the lower positioning pin 72, the rivet will not fall out of the rivet hole 63 after being pressed down.

[0024] The above embodiments only express the implementation methods of the utility model, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the patent of the utility model. It should be pointed out that for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the utility model, and these all belong to the protection scope of the utility model.

Claims

1. A rivet cold pressing device for a bottle cap, comprising a machine base, characterized in that: A frame is provided inside the base, and the frame includes a first support plate and a second support plate arranged relatively up and down, the first support plate and the second support plate are connected together by a support rod, the first support plate is provided with a fixed seat, a movable seat that can elastically move up and down is provided on the upper part of the fixed seat, a fixing groove for fixing the water outlet cover and the dust cover of the bottle cap is provided on the movable seat, the movable seat is provided with an ejector hole below the rivet hole, the fixed seat is provided with a lower connecting plate on the side facing the movable seat, and the lower connecting plate is provided with a The lower ejector pin and the movable seat are also provided with an upper pressing structure for pressing the rivet, and the upper pressing structure includes a lifting plate, and an upper connecting plate is provided at the bottom of the lifting plate, and an upper ejector pin corresponding to the rivet hole is provided on the upper connecting plate. By means of the upper pressing structure, the lifting plate presses downward to drive the upper ejector pin to press the rivet into the rivet hole from the top. Under the action of the upper ejector pin, the movable seat moves toward the lower connecting plate, so that the lower ejector pin is pressed against the bottom of the rivet hole. With the bottom positioning support of the lower ejector pin, the rivet is pressed into the rivet hole.

2. A rivet cold pressing device for a bottle cap according to claim 1, characterized in that: The upward pressing structure includes a cylinder, which is fixed on the second support plate. The telescopic rod of the cylinder is connected to the lifting plate through the second support plate. By extending the cylinder, the lifting plate is pressed down to achieve the pressing of the rivets.

3. The rivet cold pressing device for bottle caps according to claim 1, characterized in that: An elastic top column is provided between the fixed seat and the movable seat, and the elastic top column includes an upper sleeve, a spring and a lower sleeve. The lower sleeve is fixed on the fixed seat, the lower sleeve is hollow inside, the upper sleeve is fixedly connected to the bottom of the movable seat by bolts, the upper sleeve is hollow inside, the upper sleeve is movably sleeved on the outside of the lower sleeve, a spring is provided inside the lower sleeve, the upper part of the spring is supported in the upper sleeve, and the upper sleeve is movably and elastically connected to the lower sleeve by means of the spring.

4. The rivet cold pressing device for bottle caps according to claim 1, characterized in that: A limiting rod for sliding the lifting plate is provided between the fixing seat and the second support plate, and a linear bearing corresponding to the limiting rod is provided on the lifting plate. By means of the linear bearing, a sliding fit is formed between the limiting rod and the lifting plate.

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