Plastic button punching mechanism

Abstract

The utility model relates to the field of plastic products, in particular to a plastic button punching mechanism which comprises a punching table and a plurality of punching pipes, the punching pipes are vertically arranged, the lower ends of the punching pipes directly face the upper surface of the punching table, and the lower ends of the punching pipes are provided with discharging ports for discharging crude buttons in the radial direction. The lower surface of the lifting punching frame is fixedly connected with the upper ends of the punching pipes; the electric heating wire is fixed to the outer wall of the punching pipe and located between the discharging port and the lower end face of the punching pipe. According to the scheme, the edge of the crude button is slightly heated, the impact force generated when plastic makes contact with the punching pipe is reduced, then the situation that the edge of the crude button is prone to edge breakage can be reduced, and the edge of the finally-formed crude button is more neat.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic products, in particular to a plastic button punching mechanism. Background Art

[0002] The processing of plastic buttons includes raw material preparation, plastic pellet heating, injection molding, cooling and curing, cutting, polishing, etc. Each step requires precise operation and strict quality control to ensure the quality and beauty of button products.

[0003] In the cutting step, the solidified plastic has a certain brittleness. When the punch cutter punches the plate-shaped plastic, the edges of the formed rough buttons are prone to chipping, which can sometimes be solved by a polishing step; but sometimes the chipped area at the edge of the rough buttons is large, which is easy to form defective inferior products; when the rough buttons are punched and formed in batches, some defective rough buttons are easily mixed with normal rough buttons, which will affect the quality of the final finished buttons. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a plastic button punching mechanism to solve the problem that when punching plastic, the impact force between the punching knife and the plastic is large, resulting in the edge of the formed rough button being easily broken.

[0005] In order to achieve the above-mentioned purpose, the basic scheme of the utility model is as follows: a plastic button punching mechanism, including a punching station, and also including:

[0006] A plurality of punching and cutting tubes are arranged vertically, and the lower ends of the punching and cutting tubes are directly opposite to the upper surface of the punching and cutting table, and a discharge port for discharging rough buttons is arranged radially along the upper edge of the lower end of the punching and cutting tube;

[0007] A lifting punching and cutting frame, the lower surface of which is fixedly connected to the upper ends of a plurality of punching and cutting tubes;

[0008] The electric heating wire is fixed on the outer wall of the punching tube, and the electric heating wire is located between the discharge port and the lower end surface of the punching tube.

[0009] The technical principle of the utility model is as follows: when punching plastic, the electric heating wire is in an on state, and the lower end of the punching tube is heated by the electric heating wire. When the punching tube punches onto the plastic, the edge of the rough button is slightly heated, reducing the impact force when the plastic contacts the punching tube, thereby reducing the edge collapse that is prone to occur at the edge of the rough button, making the edge of the final formed rough button more even and less likely to be a defective rough button.

[0010] Furthermore, the heating wire is fixed around the outer wall of the punched tube.

[0011] Through the above arrangement, the punching tube can be evenly heated in a surrounding manner, so that the punching tube has a slight hot melting effect around the contact with the plastic.

[0012] Furthermore, the center of the punching tube above the discharge port is solid, and the surface of the solid part of the punching tube smoothly transitions to the upper side of the discharge port of the punching tube.

[0013] Through the above arrangement, when the second piece of rough buttons is punched, the newly formed rough buttons push the previous piece of rough buttons to the discharge port, and the solid part of the punching tube abuts against the previous piece of rough buttons, making it easy to take out and collect the rough buttons from the discharge port.

[0014] Further, the lifting punching frame comprises:

[0015] A support plate, the support plate is arranged horizontally, and the lower surface of the support plate is fixedly connected to the upper end of the punching pipe;

[0016] A plurality of hydraulic telescopic rods, which are vertically arranged, and the lower ends of which are fixedly connected to the upper surface of the support plate;

[0017] A hydraulic pump that controls the extension or retraction of the hydraulic telescopic rod.

[0018] Through the above arrangement, the support plate cooperates with the hydraulic telescopic rod to synchronously drive a plurality of punching and cutting pipes to move up and down synchronously, thereby performing a punching and cutting operation, and improving the punching and cutting stability of the plurality of punching and cutting pipes.

[0019] Furthermore, a plurality of punched tubes are evenly arranged along the horizontal axis of the support plate.

[0020] Through the above arrangement, when the plastic is punched, the punching tube can easily squeeze the remaining plastic, and the uniform arrangement can make the local compression of the plastic more uniform, so that the plastic is not prone to large uneven deformation when the rough buttons are cut.

[0021] Furthermore, a groove for embedding plastic is provided on the upper surface of the punching table in a horizontally concave manner.

[0022] Through the above arrangement, the plastic is fully limited by the groove of the punching table, ensuring that the plastic is accurately aligned with the punching tube during the punching process, thereby reducing the defective rate of rough buttons.

[0023] Furthermore, the central angle formed by the cross-sectional profile of the discharge port is 190°-300°.

[0024] Through the above arrangement, the circumferential contour of the discharge port is larger, which makes it easier for the rough buttons to be taken out from the discharge port. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1It is a structural schematic diagram of the axial direction of a plastic button punching mechanism in an embodiment of the utility model.

[0026] In the above drawings: a punching table 10 , a groove 101 , a mounting column 102 , a punching tube 20 , a discharge port 201 , a heating wire 202 , a support plate 30 , a hydraulic telescopic rod 301 , and plastic 40 . DETAILED DESCRIPTION

[0027] The technical solution of the present utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0028] This embodiment is basically Figure 1 As shown, the embodiment of the utility model proposes a plastic button punching mechanism, including a punching table 10, a plurality of punching tubes 20, a lifting punching frame and an electric heating wire 202. The punching table 10 is strip-shaped, and a groove 101 for embedding plastic 40 is horizontally provided on the upper surface of the punching table 10. Three mounting columns 102 are vertically fixedly installed on the lower surface of the punching table 10; a traction roller (not shown) for conveying the punched plastic 40 is installed on the right end of the punching table 10.

[0029] like Figure 1 As shown, the punching tube 20 is arranged vertically, and the lower end of the punching tube 20 is opposite to the groove 101 on the upper surface of the punching table 10, and a discharge port 201 for discharging rough buttons is radially arranged on the lower end of the punching tube 20, and the discharge port 201 is located away from the side wall of the two adjacent punching tubes 20, and the central angle formed by the cross-sectional profile of the discharge port 201 is 250°; the heating wire 202 is fixed on the outer wall of the punching tube 20, and the heating wire 202 is located between the discharge port 201 and the lower end surface of the punching tube 20; at the same time, the center of the punching tube 20 located above the discharge port 201 is solid, and the solid surface of the punching tube 20 is smoothly transitioned to the upper side of the discharge port 201 of the punching tube 20, and the inner wall of the punching tube 20 opposite to the discharge port 201 is an arc surface extending toward the center of the punching tube 20, which can horizontally guide the rough buttons moving upward.

[0030] like Figure 1 As shown, the lifting punching frame includes a support plate 30, three hydraulic telescopic rods 301 and a hydraulic pump (not shown) for controlling the extension or shortening of the hydraulic telescopic rods 301. The support plate 30 is horizontally arranged, the lower surface of the support plate 30 is welded to the upper end of the punching tube 20, and a plurality of punching tubes 20 are evenly arranged along the horizontal axis of the support plate 30; at the same time, the hydraulic telescopic rod 301 is vertically arranged, the lower end of the hydraulic telescopic rod 301 is welded to the upper surface of the support plate 30, and the three hydraulic telescopic rods 301 are evenly arranged along the horizontal axis of the support plate 30;

[0031] When the plastic button punching mechanism in this embodiment is in use, the plastic 40 is first solidified into a strip structure, and then the solidified plastic 40 is installed in the groove 101 of the punching table 10, and the end of the plastic 40 is in contact with the traction roller, which conveys the plastic 40 and can guide the waste plastic 40 after punching back to the hot melt stage for further solidification and punching, thereby realizing uninterrupted processing of rough buttons.

[0032] When punching the plastic 40, the heating wire 202 is in the on state, the hydraulic pump controls the extension of the hydraulic telescopic rod 301, the hydraulic telescopic rod 301 simultaneously drives the support plate 30 to move downward, the support plate 30 pushes all the punching tubes 20 to move downward, the punching tube 20 punches onto the plastic 40, and the lower end of the punching tube 20 is heated by the heating wire 202. When the punching tube 20 punches onto the plastic 40, the edge of the rough button is slightly heated, reducing the impact force when the plastic 40 contacts the punching tube 20, thereby reducing the edge collapse of the rough button, so that the edge of the rough button formed in the end is more neat.

[0033] When the second piece of rough buttons is being punched, the newly formed rough buttons push the previous piece of rough buttons to the discharge port 201. At this time, the previous piece of rough buttons contacts the curved surface, so that the rough buttons are horizontally squeezed out by the curved surface of the punching tube 20 while moving upward, which facilitates the removal and collection of the rough buttons.

[0034] In the above process, the plastic 40 is fully limited by the groove 101 of the punching table 10, ensuring that the plastic 40 is accurately aligned with the punching tube 20 during the punching process, thereby reducing the defective rate of rough buttons; the conveying of the plastic 40 can be coordinated with the punching of the plastic 40, and the plastic 40 is continuously punched, thereby improving the forming efficiency of rough buttons.

[0035] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A plastic button punching mechanism, comprising a punching station, characterized in that: Also includes: A plurality of punching and cutting tubes, wherein the punching and cutting tubes are arranged vertically, and the lower ends of the punching and cutting tubes are directly opposite to the upper surface of the punching and cutting table, and the lower ends of the punching and cutting tubes are radially provided with discharge ports for discharging the rough buttons; A lifting punching frame, the lower surface of which is fixedly connected to the upper ends of a plurality of punching tubes; The electric heating wire is fixed on the outer wall of the punching tube, and the electric heating wire is located between the discharge port and the lower end surface of the punching tube.

2. A plastic button punching mechanism as claimed in claim 1, characterized in that: The electric heating wire is fixed around the outer wall of the punching tube.

3. A plastic button punching mechanism as claimed in claim 2, characterized in that: The center of the punching tube above the discharge port is solid, and the surface of the solid part of the punching tube smoothly transitions to the upper side of the discharge port of the punching tube.

4. A plastic button punching mechanism as claimed in claim 3, characterized in that: The lifting punching frame comprises: A support plate, the support plate is arranged horizontally, and the lower surface of the support plate is fixedly connected to the upper end of the punching tube; A plurality of hydraulic telescopic rods, wherein the hydraulic telescopic rods are vertically arranged, and the lower ends of the hydraulic telescopic rods are fixedly connected to the upper surface of the support plate; A hydraulic pump that controls the extension or retraction of the hydraulic telescopic rod.

5. A plastic button punching mechanism as claimed in claim 4, characterized in that: The plurality of punching tubes are evenly arranged along the horizontal axis of the support plate.

6. A plastic button punching mechanism as claimed in claim 5, characterized in that: A groove for plastic embedding is provided on the upper surface of the punching table in a horizontal and concave manner.

7. A plastic button punching mechanism as claimed in claim 6, characterized in that: The central angle formed by the cross-sectional profile of the discharge port is 190°-300°.

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