Cold isostatic press for producing air pressure silicon nitride thermocouple protection sleeve

Abstract

The utility model discloses a cold isostatic press for producing an air pressure silicon nitride thermocouple protection sleeve, and belongs to the technical field of cold isostatic presses. A cold isostatic pressing machine for producing an air pressure silicon nitride thermocouple protection sleeve comprises a machine base and a cold isostatic pressing chamber fixedly connected to the machine base, a mold is fixedly connected to the cold isostatic pressing chamber, a pressing plate is arranged on the machine base in a lifting mode, the bottom of the pressing plate faces the opening end of the mold, and a sealing assembly is arranged on the pressing plate; the mounting base is fixedly connected into the machine base, a knocking mechanism is arranged on the mounting base, and the knocking end of the knocking mechanism faces the bottom of the mold; in the descending and moving process of the pressing plate, the knocking rods can knock towards the bottom of the mold, knock silicon nitride powder in the mold, remove gaps among the powder in the mold, and fill the gaps in time, so that the hardness of a formed product is improved, the multiple sets of knocking rods arranged in the device can increase the number of times of collision, and the production efficiency is improved. And the impact effect is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to cold isostatic press technical field especially relates to a cold isostatic press for pressure silicon nitride thermocouple protection sleeve pipe production. BACKGROUND

[0002] Cold isostatic press is to the material that is loaded in sealed, elastic mould, is placed in the container that contains liquid or gas, uses liquid or gas to exert with certain pressure to it, and the material is pressed into solid, obtains the blank of original shape, when the pressure is released, the mould is taken out from the container, and after stripping, according to need, the blank is made further shaping treatment.

[0003] Through the retrieval, the patent of Chinese patent publication No. CN217532001U discloses a cold isostatic press for pressure silicon nitride thermocouple protection sleeve pipe production, including the cold isostatic press for pressure silicon nitride thermocouple protection sleeve pipe production including platform and adjusting assembly, the lower end of the platform is provided with cold isostatic chamber, and the upper end of platform is provided with adjusting box in the middle, the adjusting assembly is arranged in the inside of adjusting box, the upper end of rotating gear is connected with arc fastening ring one, the inside of arc fastening ring one is provided with mould.

[0004] However, the above patent still has the following deficiencies: in the above patent, by pushing the fixed barrel, the compression head can be extruded, the air in the compression head is extruded into the knock block, through the reciprocating movement of the knock block, the soft pad is pushed to move up and down, through the movement of the soft pad, the impact head can impact the lower wall of the mould, but the impact frequency of the impact head is less, which leads to poor impact effect. UTILITY MODEL CONTENTS

[0005] The utility model aims at solving the problem of the impact frequency of the impact head in the prior art is less, which leads to poor impact effect, and provides a cold isostatic press for pressure silicon nitride thermocouple protection sleeve pipe production.

[0006] In order to achieve the above object, the utility model adopts the following technical scheme:

[0007] A cold isostatic press for pressure silicon nitride thermocouple protection sleeve pipe production, including the base, further including: the cold isostatic chamber fixedly connected on the base, wherein the cold isostatic chamber is fixedly connected with the mould, the pressing plate is arranged on the base and moves up and down, and the bottom of the pressing plate faces the opening end of the mould, the sealing assembly is arranged on the pressing plate; the mounting seat is fixedly connected in the base, wherein the knocking mechanism is arranged on the mounting seat, and the knocking end of the knocking mechanism faces the bottom of the mould, when the pressing plate moves towards the opening end of the mould, the bottom of the mould is knocked by the knocking end of the knocking mechanism.

[0008] In order to facilitate the bottom of the mold to knock, preferably, the knocking mechanism includes a knocking rod slidingly connected to the mounting seat, a rotating shaft is rotatably connected in the mounting seat, a cam is fixedly connected to the rotating shaft, a connecting seat is fixedly connected to the bottom of the knocking rod, a roller is rotatably connected to the connecting seat, and the roller abuts against the outer wall of the cam.

[0009] In order to facilitate the reset of the knocking rod, further, a reset spring is sleeved on the knocking rod, and two ends of the reset spring are fixedly connected to the mounting seat and the connecting seat respectively.

[0010] In order to facilitate the rotation of the rotating shaft, still further, a transmission disc is fixedly connected to the mounting seat, the rotating shaft extends into the transmission disc and is fixedly connected with a turbine blade, a booster cylinder is fixedly connected to the base, a booster rod is slidingly connected to the booster cylinder, a piston is arranged at one end of the booster rod and abuts against the inner wall of the booster cylinder, a contact plate is fixedly connected to the other end of the booster rod and extends to the outside, the contact plate abuts against the bottom of the pressing plate, and the booster cylinder is in communication with the transmission disc.

[0011] In order to facilitate the rotation of the turbine blade, preferably, the booster cylinder is provided with an air inlet pipe and an air outlet pipe respectively, one-way valves are arranged on the air inlet pipe and the air outlet pipe, and the air outlet pipe is in communication with the transmission disc.

[0012] In order to facilitate the reset of the piston, preferably, a buffer spring is arranged in the booster cylinder, and two ends of the buffer spring are fixedly connected to the piston and the inner wall of the booster cylinder respectively.

[0013] In order to improve the sealing effect of the pressing plate, preferably, the sealing assembly comprises a sealing sleeve fixedly connected to the bottom of the pressing plate.

[0014] In order to facilitate the lifting movement of the pressing plate, preferably, a hydraulic cylinder is fixedly connected to the base, and the pressing plate is fixedly connected to the output end of the hydraulic cylinder.

[0015] Preferably, a convex mold is arranged at the bottom of the pressing plate.

[0016] Preferably, a sealing gasket is arranged on the inner wall of the sealing sleeve and cooperates with the mold.

[0017] Compared with the prior art, the cold isostatic pressing machine for producing the gas pressure silicon nitride thermocouple protective sleeve has the following beneficial effects:

[0018] 1. The cold isostatic pressing machine for producing pressure silicon nitride thermocouple protection sleeve, the pressing plate is driven to move up and down through the hydraulic cylinder, when the pressing plate moves down, the knocking rod knocks towards the bottom of the mold, the silicon nitride powder in the mold is knocked, the gap between the powder in the mold is removed, and the gap is timely filled, thereby the hardness of the formed product is improved, and the multiple knocking rods arranged in the device can increase the knocking times and improve the knocking effect.

[0019] 2. The cold isostatic pressing machine for producing pressure silicon nitride thermocouple protection sleeve, the sealing sleeve arranged at the bottom of the pressing plate can improve the sealing performance of the mold during static pressing.

[0020] The parts not involved in the device are the same as or can be realized by the prior art, in the utility model, the knocking rod knocks towards the bottom of the mold during the downward movement of the pressing plate, the silicon nitride powder in the mold is knocked, the gap between the powder in the mold is removed, and the gap is timely filled, thereby the hardness of the formed product is improved, and the multiple knocking rods arranged in the device can increase the knocking times and improve the knocking effect. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 A structure diagram of the cold isostatic pressing machine for producing pressure silicon nitride thermocouple protection sleeve is provided in the utility model Figure One ;

[0022] Figure 2 A structure diagram of the cold isostatic pressing machine for producing pressure silicon nitride thermocouple protection sleeve is provided in the utility model Figure Two ;

[0023] Figure 3 A structure diagram of the cold isostatic pressing machine for producing pressure silicon nitride thermocouple protection sleeve is provided in the utility model Figure One ;

[0024] Figure 4 A structure diagram of the cold isostatic pressing machine for producing pressure silicon nitride thermocouple protection sleeve is provided in the utility model Figure Two ;

[0025] Figure 5 A structure diagram of the cold isostatic pressing machine for producing pressure silicon nitride thermocouple protection sleeve is provided in the utility model Figure One ;

[0026] Figure 6 A structure diagram of the cold isostatic pressing machine for producing pressure silicon nitride thermocouple protection sleeve is provided in the utility model Figure Two .

[0027] In the figure: 1, base; 2, cold isostatic pressing chamber; 3, mold; 4, hydraulic cylinder; 5, pressing plate; 6, mounting seat; 7, rotating shaft; 8, cam; 9, knocking rod; 10, connecting seat; 11, roller; 12, return spring; 13, transmission disc; 14, booster cylinder; 15, booster rod; 16, piston; 17, buffer spring; 18, air inlet pipe; 19, air outlet pipe; 20, contact plate; 21, sealing sleeve; 22, male die; 23, turbine blade. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments.

[0029] In the description of the utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.

[0030] Embodiment:

[0031] With reference to Figures 1-6 A cold isostatic pressing machine for producing pressure silicon nitride thermocouple protective sleeve, including base 1, still include: fixedly connected on the base 1 cold isostatic pressing chamber 2, wherein the cold isostatic pressing chamber 2 is fixedly connected with mold 3, the base 1 is provided with pressing plate 5, and the bottom of the pressing plate 5 is towards the opening end of the mold 3, and the pressing plate 5 is provided with sealing assembly;The mounting seat 6 fixedly connected in the base 1, wherein the mounting seat 6 is provided with knocking mechanism, and the knocking end of the knocking mechanism is towards the bottom of the mold 3, when the pressing plate 5 moves towards the opening end of the mold 3, the bottom of the mold 3 is knocked by the knocking end of the knocking mechanism.

[0032] The mold 3 can be filled with silicon nitride powder, and the pressing plate 5 provided with lifting can seal the mold 3, and the sealing assembly provided at the bottom of the pressing plate 5 can improve the sealing property of the mold 3.

[0033] Further, in order to improve the sealing effect of the pressing plate 5, the sealing assembly comprises a sealing sleeve 21 fixedly connected to the bottom of the pressing plate 5. The base 1 is fixedly connected with a hydraulic cylinder 4, and the pressing plate 5 is fixedly connected to the output end of the hydraulic cylinder 4. The bottom of the pressing plate 5 is provided with a convex die 22, and the convex die 22 is arranged in the middle of the sealing sleeve 21. The inner wall of the sealing sleeve 21 is provided with a sealing gasket, and the sealing gasket cooperates with the mold 3.

[0034] When the bottom of the pressing plate 5 abuts against the mold 3, the convex die 22 will extend into the mold 3 to shape the silicon nitride, and the sealing sleeve 21 will be sleeved outside the mold 3, and the sealing gasket can be attached to the outer wall of the mold 3, thereby improving the sealing effect between the pressing plate 5 and the mold 3.

[0035] It should be explained that the base 1 is fixedly connected with a hydraulic cylinder 4, and the pressing plate 5 is fixedly connected to the output end of the hydraulic cylinder 4, and the pressing plate 5 can be driven to move up and down by the hydraulic cylinder 4. When the pressing plate 5 moves downward, the knocking end of the knocking mechanism will knock towards the bottom of the mold 3, knock the silicon nitride powder in the mold 3, remove the gap between the powder in the mold 3, and timely fill the gap, thereby improving the hardness of the formed product.

[0036] Further, the knocking mechanism comprises a knocking rod 9 slidably connected to the mounting seat 6, a rotating shaft 7 rotatably connected in the mounting seat 6, a cam 8 fixedly connected to the rotating shaft 7, a connecting seat 10 fixedly connected to the bottom of the knocking rod 9, and a roller 11 rotatably connected to the connecting seat 10, and the roller 11 abuts against the outer wall of the cam 8.

[0037] The knocking rod 9 is sleeved with a return spring 12, and the two ends of the return spring 12 are fixedly connected to the mounting seat 6 and the connecting seat 10 respectively.

[0038] When the rotating shaft 7 rotates, the cam 8 drives the roller 11 on the connecting seat 10 to rotate, at this time the knocking rod 9 moves up and down reciprocatingly, thereby the knocking rod 9 can knock the bottom of the mold 3, and as shown in Figure 5 The knocking rod 9 can be provided in multiple groups, and the multiple groups of knocking rods 9 can increase the number of impacts and improve the impact effect.

[0039] In order to facilitate the rotation of the rotating shaft 7, a transmission disc 13 fixedly connected to the mounting seat 6 is further provided, wherein the rotating shaft 7 extends into the transmission disc 13 and is fixedly connected with a turbine blade 23; a booster cylinder 14 fixedly connected to the base 1 is further provided, wherein the booster cylinder 14 is slidably connected with a booster rod 15, one end of the booster rod 15 is provided with a piston 16, the piston 16 is attached to the inner wall of the booster cylinder 14, the other end of the booster rod 15 extends to the outside and is fixedly connected with a contact plate 20, the contact plate 20 is attached to the bottom of the pressing plate 5, and the booster cylinder 14 is in communication with the transmission disc 13.

[0040] When the hydraulic cylinder 4 drives the pressing plate 5 to descend, the pressing plate 5 will press the contact plate 20 synchronously, so that the contact plate 20 drives the booster rod 15 to move synchronously, the booster rod 15 will drive the piston 16 to move in the process of moving, and the gas in the booster cylinder 14 is pressed into the transmission disc 13, at this time, the turbine blade 23 drives the rotating shaft 7 to rotate.

[0041] The buffering spring 17 is arranged in the booster cylinder 14, and two ends of the buffering spring 17 are fixedly connected to the piston 16 and the inner wall of the booster cylinder 14 respectively, and the buffering spring 17 is compressed in the process of the booster rod 15 pressing the gas.

[0042] In addition, the booster cylinder 14 is provided with the air inlet pipe 18 and the air outlet pipe 19 respectively, the air inlet pipe 18 and the air outlet pipe 19 are provided with the one-way valve respectively, and the air outlet pipe 19 is communicated with the transmission disc 13.

[0043] When the hydraulic cylinder 4 drives the pressing plate 5 to move upwards, the negative pressure is generated in the booster cylinder 14, the buffering spring 17 resets, the air inlet pipe 18 starts to intake the air, and the air outlet pipe 19 stops to exhaust the air, so as to supplement the gas in the booster cylinder 14.

[0044] The above is only the preferred specific implementation manner of the utility model, but the protection scope of the utility model is not limited to this, any skilled person in the technical field according to the technical scheme and the utility model concept of the utility model in the technical range disclosed by the utility model adds equivalent replacement or change, should be covered in the protection scope of the utility model.

Claims

1. A cold isostatic press for the production of a gas pressure silicon nitride thermocouple protection sheath, comprising a machine base (1), characterized in that, Also include: Fixedly connected to the cold isostatic pressing chamber (2) on the base (1), Wherein, the cold isostatic pressing chamber (2) is fixedly connected with the mold (3), the base (1) is provided with a pressing plate (5) which is raised and lowered, and the bottom of the pressing plate (5) faces the opening end of the mold (3), and the pressing plate (5) is provided with a sealing assembly; Fixedly connected to the mounting seat (6) in the base (1), Wherein, the mounting seat (6) is provided with a knocking mechanism, and the knocking end of the knocking mechanism faces the bottom of the mold (3), when the pressing plate (5) moves towards the opening end of the mold (3), the bottom of the mold (3) is knocked by the knocking end of the knocking mechanism.

2. The cold isostatic press for producing a gas pressure silicon nitride thermocouple protection sheath according to claim 1, characterized in that, The knocking mechanism includes a knocking rod (9) which is slidingly connected to the mounting seat (6), a rotating shaft (7) which is rotatably connected to the mounting seat (6), a cam (8) which is fixedly connected to the rotating shaft (7), a connecting seat (10) which is fixedly connected to the bottom of the knocking rod (9), and a roller (11) which is rotatably connected to the connecting seat (10), wherein the roller (11) abuts against the outer wall of the cam (8).

3. The cold isostatic press for producing a gas pressure silicon nitride thermocouple protection sheath according to claim 2, characterized by A return spring (12) is sleeved on the knocking rod (9), and the two ends of the return spring (12) are fixedly connected to the mounting seat (6) and the connecting seat (10), respectively.

4. The cold isostatic press for producing a gas pressure silicon nitride thermocouple protection sheath according to claim 3, characterized by Also include: A transmission disc (13) which is fixedly connected to the mounting seat (6), Wherein, the rotating shaft (7) extends into the transmission disc (13) and is fixedly connected with a turbine blade (23); A supercharging cylinder (14) which is fixedly connected to the base (1), Wherein, the supercharging cylinder (14) is slidingly connected with a supercharging rod (15), one end of the supercharging rod (15) is provided with a piston (16), and the piston (16) is in close contact with the inner wall of the supercharging cylinder (14), the other end of the supercharging rod (15) extends to the outside and is fixedly connected with a contact plate (20), the contact plate (20) is in close contact with the bottom of the pressing plate (5), and the supercharging cylinder (14) is in communication with the transmission disc (13).

5. The cold isostatic press for producing a gas pressure silicon nitride thermocouple protection sheath according to claim 4, characterized by The supercharging cylinder (14) is provided with an air inlet pipe (18) and an air outlet pipe (19), respectively, and the air inlet pipe (18) and the air outlet pipe (19) are provided with a one-way valve, and the air outlet pipe (19) is in communication with the transmission disc (13).

6. The cold isostatic press for producing a gas pressure silicon nitride thermocouple protection sheath according to claim 4, characterized by The supercharging cylinder (14) is provided with a buffer spring (17), and the two ends of the buffer spring (17) are fixedly connected to the piston (16) and the inner wall of the supercharging cylinder (14), respectively.

7. The cold isostatic press for producing a gas pressure silicon nitride thermocouple protection sheath according to claim 1, characterized by The sealing assembly includes a sealing sleeve (21), which is fixedly connected to the bottom of the pressing plate (5).

8. The cold isostatic press for producing a gas pressure silicon nitride thermocouple protection sheath according to claim 7, characterized by The base (1) is fixedly connected with a hydraulic cylinder (4), and the pressing plate (5) is fixedly connected to the output end of the hydraulic cylinder (4).

9. The cold isostatic press for producing a gas pressure silicon nitride thermocouple protection sheath according to claim 8, characterized by The bottom of the pressing plate (5) is provided with a male die (22), and the male die (22) is arranged in the middle of the sealing sleeve (21).

10. The cold isostatic press for producing a gas pressure silicon nitride thermocouple protection sheath according to claim 9, characterized by The inner wall of the sealing sleeve (21) is provided with a sealing gasket, and the sealing gasket cooperates with the mold (3).

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