A gas suspension low-resistance receiving device for cemented carbide rod

Abstract

The utility model discloses a kind of hard alloy bar gas suspension low-resistance material receiving devices, comprising: extrusion cylinder, horizontally movable extrusion rod, extrusion die, discharging support die, material receiving support die, vertically movable cutting knife, transversely movable material receiving boat;Discharging support die is equipped with the first air outlet hole of upward air flow to make bar material keep suspended state;Material receiving support die is equipped with the second air outlet hole of upward air flow to make bar material keep suspended state;Material receiving boat is equipped with the third air outlet hole of upward air flow to make bar material keep suspended state;Cutting knife is located between discharging support die and material receiving support die, for cutting off bar stock.The device can reduce the transmission resistance of hard alloy bar in production process, eliminate the influence of friction on hard alloy bar pitch, ensure the consistency of pitch in product production process, the stability of quality.

Description

Technical Field

[0001] This utility model relates to the field of cemented carbide bar production technology, and more specifically to a low-resistance air-suspension receiving device for cemented carbide bars. Background Technology

[0002] With the development of industrial technology, drilling is being used more and more widely in the field of high-end equipment manufacturing. Drill bits made from cemented carbide rods are used under harsh conditions and are prone to low cooling efficiency, so it is necessary to extend the cooling channel and improve the cooling efficiency.

[0003] To extend the service life of drill bits, the most common methods are external cooling and internal cooling. Among these, carbide drill bits with internally cooled helical bores offer a significant advantage over external cooling, as they allow for internal cooling. Major domestic carbide manufacturers use a rotary extrusion method to produce helical bore bars. However, during bar production, the pitch can be unstable due to variations in the feeding method, affecting product quality.

[0004] Chinese invention patent CN102152491A discloses a device and method for continuously producing infinitely long rods with multiple internal spiral cooling holes. It achieves the production of infinitely long rods through a material conveying device. This method results in the rods bearing greater resistance when the rod length is too long. Especially for spiral hole rods, the pitch will change due to the influence of frictional resistance, which seriously affects the product quality. That is, the device does not effectively solve the problem of unstable pitch.

[0005] Therefore, how to provide a low-resistance air-suspension receiving device for cemented carbide rods that effectively ensures stable pitch, high yield, and meets process requirements for the production of spiral hole rods is a problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0006] In view of this, the present invention provides a low-resistance air suspension receiving device for cemented carbide rods. This device can reduce the transmission resistance of cemented carbide rods during the production process, eliminate the influence of friction on the pitch of cemented carbide rods, and ensure the consistency of pitch and the stability of quality during the production process.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] A low-resistance air-suspension receiving device for cemented carbide bars includes: an extrusion cylinder, a horizontally movable extrusion rod, an extrusion die, a discharge support die, a receiving support die, a vertically movable cutting knife, and a horizontally movable receiving boat.

[0009] The outlet end of the extrusion cylinder is connected to the inlet end of the extrusion die. The extrusion rod is disposed inside the extrusion cylinder and is used to extrude the bar material inside the extrusion cylinder into the extrusion die, and extrude the bar material into a bar through the extrusion of the extrusion die.

[0010] The outlet end of the extrusion die is connected to the inlet end of the discharge support die. The discharge support die is provided with a first air inlet channel. The bottom wall of the discharge die cavity of the discharge support die is provided with a plurality of first air outlet holes, all of which are connected to the first air inlet channel, for blowing air upward to keep the bar in a suspended state.

[0011] The outlet end of the discharge support mold is aligned with the inlet end of the receiving support mold, and the two are arranged at intervals. The receiving support mold is provided with a second air inlet channel. The bottom wall of the receiving mold cavity of the receiving support mold is provided with a plurality of second air outlet holes, all of which are connected to the second air inlet channel, for blowing air upward to keep the bar in a suspended state.

[0012] The receiving boat is provided with multiple V-shaped receiving channels arranged side by side. The inlet end of the V-shaped receiving channel is connected to the outlet end of the receiving support mold. The receiving boat is provided with multiple third air inlet channels arranged side by side. Each third air inlet channel is located directly below the corresponding V-shaped receiving channel. Each V-shaped receiving channel has multiple third air outlet holes on its bottom wall that are connected to the corresponding third air inlet channel for blowing air upwards to keep the bar suspended.

[0013] The cutting blade is located between the discharge support mold and the receiving support mold, and is used to cut the bar stock.

[0014] As can be seen from the above technical solution, compared with the prior art, this utility model discloses a low-resistance air suspension receiving device for cemented carbide rods. By adding air outlets to the discharge support mold, receiving support mold, and receiving boat to reduce resistance, compressed gas is blown upward through the air outlets. When receiving material, the rod can always be kept in a suspended state, thereby reducing the transmission resistance of the cemented carbide rod in the production process, eliminating the influence of friction on the pitch of the cemented carbide rod, and ensuring the consistency of pitch and the stability of quality during the product production process.

[0015] Furthermore, the discharge support mold is provided with an observation window for observing the discharge of the bar stock. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of a low-resistance air-suspended material receiving device for cemented carbide bars provided by this utility model.

[0018] Figure 2 This is a partial cross-sectional view of the main view of the discharge support mold.

[0019] Figure 3 This is a schematic diagram of the discharge mold cavity in the top view of the discharge support mold.

[0020] Figure 4 This is a partial cross-sectional view of the main view of the material receiving support mold.

[0021] Figure 5 This is a schematic diagram of the receiving mold cavity in the top view of the receiving support mold.

[0022] Figure 6 This is a top view of the receiving boat / vessel structure.

[0023] Figure 7 This is a side view of the receiving boat.

[0024] Figure 8 This is a cross-sectional view of the front view of the receiving boat.

[0025] Figure 9 This is a flowchart illustrating the process of a low-resistance air-suspended material receiving device for cemented carbide bars. Detailed Implementation

[0026] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0027] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0028] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0029] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0030] To overcome the inconsistency in screw pitch during the production of cemented carbide spiral internal cooling hole bars in the prior art, this utility model provides a cemented carbide bar air suspension low-resistance receiving device. During the bar production process, by adding an auxiliary ventilation device to the bar conveying mechanism, the resistance between the bar and the conveying equipment during the production process is reduced, the impact on the screw pitch of the bar is reduced, the consistency of the product screw pitch is ensured, and the product yield is improved.

[0031] For details, see Figures 1-8 As shown in the figure, this utility model embodiment discloses a low-resistance air suspension receiving device for cemented carbide bars, including: an extrusion cylinder 1, a horizontally movable extrusion rod 2 (existing technology), an extrusion die 3 (existing technology), a discharge support die 4, a receiving support die 5, a vertically movable cutting knife 6 (existing technology), and a horizontally movable receiving boat 7 (its horizontal movement is existing technology).

[0032] The outlet end of the extrusion cylinder 1 is connected to the inlet end of the extrusion die 3. The extrusion rod 2 is set inside the extrusion cylinder 1 and is used to extrude the bar material 8 inside the extrusion cylinder 1 into the extrusion die 3. The bar material 8 is extruded into a bar by the extrusion of the extrusion die 3.

[0033] The outlet end of the extrusion die 3 is connected to the inlet end of the discharge support die 4. The discharge support die 4 is provided with a first air inlet channel 41. The bottom wall of the discharge cavity 42 of the discharge support die 4 is provided with a plurality of first air outlet holes 43, which are all connected to the first air inlet channel 41, for blowing air upward to keep the bar in a suspended state.

[0034] The outlet end of the discharge support mold 4 is aligned with the inlet end of the receiving support mold 5, and the two are arranged at intervals. The receiving support mold 5 is provided with a second air inlet channel 51. The bottom wall of the receiving mold cavity 52 of the receiving support mold 5 is provided with a plurality of second air outlet holes 53, which are all connected to the second air inlet channel 51, for blowing air upward to keep the bar in a suspended state.

[0035] The receiving boat 7 is provided with multiple V-shaped receiving channels 71 arranged side by side for receiving a certain number of bars. The inlet end of the V-shaped receiving channel 71 is connected to the outlet end of the receiving support mold 5. The receiving boat 7 is provided with multiple third air inlet channels 72 arranged side by side. Each third air inlet channel 72 is located directly below its corresponding V-shaped receiving channel 71. Each V-shaped receiving channel 71 has multiple third air outlet holes 73 on its bottom wall, which are connected to the corresponding third air inlet channel 723 for blowing air upwards to keep the bars in a suspended state.

[0036] The cutting blade 6 is located between the discharge support mold 4 and the receiving support mold 5, and is used to cut the bar stock.

[0037] In another embodiment, the discharge support mold 4 is provided with an observation window for observing the discharge of the bar stock.

[0038] See Figure 9 As shown, the working process of this device is as follows:

[0039] Step 1: Under the extrusion of the extrusion rod 2, the bar stock 8 enters the extrusion die 3 and is formed into a bar.

[0040] Step 2: The bar enters the discharge support mold 4, and compressed gas is introduced into the first air inlet channel 41. The compressed gas is blown upward into the discharge mold cavity 42 through the first air outlet 43, so that the bar is kept in a suspended state in the discharge mold cavity 42 and conveyed forward, reducing the resistance between the bar 8 and the discharge support mold during the discharge production process.

[0041] Step 3: The bar stock enters the receiving support mold 5, and compressed gas is introduced into the second air inlet channel 51. The compressed gas is blown upward into the receiving mold cavity 52 through the second air outlet 53, so that the bar stock is kept in a suspended state in the receiving mold cavity 52 and conveyed forward to a certain V-shaped receiving channel 71 on the receiving boat 7. Compressed gas is introduced into the third air inlet channel 72, and the compressed gas is blown upward into the V-shaped receiving channel 71 through the third air outlet 73, so that the bar stock is kept in a suspended state in the V-shaped receiving channel 71 and conveyed forward. This reduces the resistance between the bar stock 8 and the receiving support mold during the output production process and reduces the movement resistance of the bar stock 8 in the boat, thereby ensuring the consistency of the bar stock pitch.

[0042] Step 4: When the bar reaches the predetermined length (the device is equipped with a bar length detection sensor), the cutting blade 6 descends to cut the bar;

[0043] Step 5: Move the cutting blade 6 upwards and reset;

[0044] Step 6: The receiving boat 7 moves horizontally to replace the next V-shaped receiving channel 71, and the next cycle of bar production begins.

[0045] In the above embodiments, the extrusion die 3 has different specifications, such as an outer diameter of 4 to 31 mm, and the pitch of the extrusion die spiral is related to the pitch of the bar stock, with different dimensions. This allows for the replacement of extrusion dies 3 of different specifications to extrude bars of different specifications, thereby achieving the production of spiral bars of different specifications.

[0046] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. For the apparatus disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the description is relatively simple; relevant parts can be referred to the method section.

[0047] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A low-resistance air-suspended material receiving device for cemented carbide bars, characterized in that, include: Extrusion cylinder (1), horizontally movable extrusion rod (2), extrusion die (3), discharge support die (4), receiving support die (5), vertically movable cutting knife (6), horizontally movable receiving boat (7). The outlet end of the extrusion cylinder (1) is connected to the inlet end of the extrusion die (3). The extrusion rod (2) is disposed inside the extrusion cylinder (1) and is used to extrude the bar stock (8) inside the extrusion cylinder (1) into the extrusion die (3). The bar stock (8) is extruded into a bar by the extrusion of the extrusion die (3). The outlet end of the extrusion die (3) is connected to the inlet end of the discharge support die (4). The discharge support die (4) is provided with a first air inlet channel (41). The bottom wall of the discharge mold cavity (42) of the discharge support die (4) is provided with a plurality of first air outlet holes (43) that are all connected to the first air inlet channel (41) for blowing air upward to keep the bar in a suspended state. The outlet end of the discharge support mold (4) is aligned with the inlet end of the receiving support mold (5), and the two are arranged at intervals. The receiving support mold (5) is provided with a second air inlet channel (51). The bottom wall of the receiving mold cavity (52) of the receiving support mold (5) is provided with a plurality of second air outlet holes (53) that are all connected to the second air inlet channel (51) for blowing air upward to keep the bar in a suspended state. The receiving boat (7) is provided with a plurality of V-shaped receiving channels (71) arranged side by side. The inlet end of the V-shaped receiving channel (71) is connected to the outlet end of the receiving support mold (5). The receiving boat (7) is provided with a plurality of third air inlet channels (72) arranged side by side. Each third air inlet channel (72) is located directly below the corresponding V-shaped receiving channel (71). Each V-shaped receiving channel (71) has a plurality of third air outlet holes (73) on its bottom wall that are connected to the corresponding third air inlet channel (72) for blowing air upward to keep the bar suspended. The cutting blade (6) is located between the discharge support mold (4) and the receiving support mold (5) and is used to cut the bar stock.

2. The low-resistance air-suspended material receiving device for cemented carbide bars according to claim 1, characterized in that, The discharge support mold (4) is provided with an observation window for observing the discharge of bar stock.

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