Blowing type demolding device and demolding method for powder metallurgy product

Abstract

The invention relates to the technical field of powder metallurgy product production, and discloses a blowing type demolding device and method for a powder metallurgy product. The blowing type demolding device comprises a supporting seat, the output end of a motor is connected with a first bevel gear, and a blowing mechanism is fixed to one side of the supporting seat; the blowing mechanism is connected to the bottom of the first bevel gear in an engaged mode. According to the blowing type demolding device for the powder metallurgy product, after injection molding operation is completed, a second piston, a movable frame and a sealing plug move downwards, a mold pipeline and a blowing channel can be conveniently communicated, meanwhile, a rotating disc rotates, and all extrusion blocks extrude a pull rod in turn; the movable frame, the pull rod and the knocking block move left and right back and forth under the extrusion of the extrusion block and the jacking action of the second compression spring, so that the mold pipeline is conveniently and repeatedly knocked, a product is completely separated from the inner wall of the mold pipeline, subsequent rapid demolding is facilitated, an air blowing channel automatically blows air upwards, automatic demolding is achieved, and the product can be prevented from being damaged.

Description

Technical Field

[0001] The invention relates to the technical field of powder metallurgy product production, in particular to an air blowing demoulding device and a demoulding method for powder metallurgy products. Background Art

[0002] Powder metallurgy is a process technology that produces metal powder or uses metal powder (or a mixture of metal powder and non-metallic powder) as raw material, and then forms and sinters it to manufacture metal products, composite products and various types of products. In the field of powder metallurgy, the forming method and the forming mold are a very critical link. After the forming operation is completed, a demolding device is required to achieve demolding.

[0003] The existing demoulding device generally pushes the product out through the shovel plate on the side of the powder box, which can easily cause damage to the product and the mold can also be easily damaged in the process. In view of the above problems, it is necessary to improve the existing equipment. Summary of the invention

[0004] The purpose of the present invention is to provide an air blowing demoulding device and demoulding method for powder metallurgy products, so as to solve the problem that the existing demoulding device proposed in the above background technology generally pushes the product out through the shovel plate on the side of the powder box, which is easy to cause damage to the product and the mold is also easy to be damaged in the process.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a blowing demolding device and a demolding method for powder metallurgy products, comprising a support seat, a blowing channel and a mold pipe are fixed in the support seat, the mold pipe passes through the top of the support seat and is connected to the blowing channel, a demolding mechanism is fixed on the support seat, the demolding mechanism comprises a support frame, the support frame is fixed to the top of the support seat, a motor is fixed to the top of the support frame, the output end of the motor is connected to a first bevel gear, a blowing mechanism is fixed to one side of the support seat, and the blowing mechanism is meshingly connected to the bottom of the first bevel gear.

[0006] Working principle: First, the powder raw material is passed into the mold pipeline and the raw material is pressed and molded using an external tool. After the tool is removed, the rotation of the first bevel gear drives the rotation of the second bevel gear, the screw rotates, the sleeve and the first piston move down, the second piston, the moving frame and the sealing plug move down, so as to connect all the mold pipelines with the blowing channel. At the same time, the moving plate, the first compression spring and the third piston move down, the first compression spring is compressed, the air in the airtight box is compressed, the third bevel gear rotates, the ratchet wheel rotates forward to drive the ratchet sleeve to rotate, the turntable rotates driven by the shaft, the universal joint and the second belt drive assembly, and the extrusion block squeezes the pull rod, the movable frame and the knocking block Move to the right, after the extrusion block leaves the pull rod, the pull rod, movable frame and knocking block automatically pop open, the turntable rotates continuously, and the knocking block moves back and forth left and right, thereby automatically knocking on the mold pipe, so that the product is completely separated from the inner wall of the mold pipe. After the sealing plate is raised, the second connecting pipe connects the airtight box with the blowing channel, the third piston automatically pops down, and the blowing channel blows air upward, thereby automatically blowing the product out of the mold pipe, thereby achieving demoulding, and then the first bevel gear rotates, the second bevel gear and the third bevel gear rotate, the ratchet reverses and cannot drive the ratchet sleeve to rotate, the knocking block does not move, the movable plate, the first compression spring and the third piston reset, and the movable frame and the sealing plug reset.

[0007] Compared with the prior art, the present invention has the following beneficial effects:

[0008] 1. The air blowing demoulding device for powder metallurgy products can achieve the purpose of knocking separation through the coordinated use of the air blowing channel, mold pipeline, second piston, movable frame, plug, turntable, extrusion block, movable frame, pull rod, knocking block and second compression spring. After the injection molding operation is completed, the second piston, movable frame and plug are moved down to facilitate the connection of the mold pipeline with the air blowing channel. At the same time, the turntable rotates, and all the extrusion blocks squeeze the pull rod in turn. The movable frame, pull rod and knocking block move back and forth left and right under the extrusion of the extrusion block and the supporting action of the second compression spring, which is convenient for repeated knocking of the mold pipeline, so that the product is completely separated from the inner wall of the mold pipeline for subsequent rapid demoulding.

[0009] 2. The air blowing demoulding device of the powder metallurgy product can achieve the purpose of air blowing demoulding through the coordinated use of the air blowing channel, sleeve, airtight box, movable plate, first compression spring, third piston and sealing plate. The downward movement of the sleeve can drive the movable plate, the first compression spring and the third piston to move downward, the first compression spring is compressed, and the gas in the airtight box is compressed. After the sealing plate is raised, the air blowing channel automatically blows air upward to achieve automatic demoulding and avoid damage to the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0011] Figure 2 It is a schematic diagram of the front cross-sectional structure of the present invention;

[0012] Figure 3 For the present invention Figure 2 The enlarged structural diagram at A in the middle;

[0013] Figure 4 It is a structural schematic diagram of the blowing mechanism of the present invention;

[0014] Figure 5 It is a schematic diagram of the connection structure of the second connection pipe, the electric telescopic column and the sealing plate of the present invention;

[0015] Figure 6 It is a schematic diagram of the azimuth structure of the ratchet wheel and the ratchet sleeve of the present invention;

[0016] Figure 7 It is a schematic diagram of the connection structure of the turntable, the extrusion block, the movable frame, the pull rod, the knocking block and the second compression spring of the present invention.

[0017] In the figure: 1, support base; 2, blowing channel; 3, mold pipeline; 4, demoulding mechanism; 401, support frame; 402, motor; 403, first bevel gear; 404, blowing mechanism; 4041, second bevel gear; 4042, screw; 4043, first oil cylinder; 4044, sleeve; 4045, first piston; 4046, first connecting pipeline; 4047, second oil cylinder; 4048, second piston; 4049, moving frame; 40410, plug; 40411, airtight box; 40412, moving plate ; 40413, first compression spring; 40414, third piston; 40415, second connecting pipe; 40416, electric telescopic column; 40417, sealing plate; 405, third bevel gear; 406, fixed frame; 407, ratchet; 408, ratchet sleeve; 409, first belt transmission assembly; 410, rotating shaft; 411, universal joint; 412, second belt transmission assembly; 413, turntable; 414, extrusion block; 415, movable frame; 416, pull rod; 417, knocking block; 418, second compression spring. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] See also Figure 1-Figure 7The present invention provides a technical solution: a blowing demolding device for powder metallurgy products, comprising a support base 1, a blowing channel 2 and a mold pipe 3 are fixed in the support base 1, the mold pipe 3 passes through the top of the support base 1 and is connected to the blowing channel 2, a demolding mechanism 4 is fixed on the support base 1, and the demolding mechanism 4 comprises a support frame 401, the support frame 401 is fixed on the top of the support base 1, a motor 402 is fixed on the top of the support frame 401, the output end of the motor 402 is connected to a first bevel gear 403, a blowing mechanism 404 is fixed on one side of the support base 1, and the blowing mechanism 404 is meshedly connected to the bottom of the first bevel gear 403.

[0020] In this embodiment, Figure 1 , Figure 2 and Figure 4 As shown, the blowing mechanism 404 includes a second bevel gear 4041, and the second bevel gear 4041 is meshed and connected to the bottom of the first bevel gear 403, a screw rod 4042 is fixed to the bottom of the second bevel gear 4041, an airtight box 40411 is fixed to one side of the support seat 1, and a first oil cylinder 4043 is fixed to the top of the airtight box 40411, the screw rod 4042 passes through the top of the first oil cylinder 4043 and is threadedly connected to a sleeve 4044, a first piston 4045 is fixed to the outside of the sleeve 4044, and the first piston 4045 is slidably connected in the first oil cylinder 4043, the first bevel gear 403 can be rotated under the action of the motor 402, thereby driving the second bevel gear 4041 to rotate, and the screw rod 4042 rotates, at this time the sleeve 4044 and the first piston 4045 can move downward under the limiting action of the screw rod 4042 and the first oil cylinder 4043.

[0021] In this embodiment, Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, a second oil cylinder 4047 is fixed in the support seat 1, and the second oil cylinder 4047 is fixed on the top of the blowing channel 2, the top of the second oil cylinder 4047 is connected to one side of the first oil cylinder 4043 through the first connecting pipe 4046, and a second piston 4048 is slidably connected in the second oil cylinder 4047, a moving frame 4049 is fixed to the bottom of the second piston 4048, and sealing plugs 40410 are symmetrically fixed on both sides of the top of the moving frame 4049, and the sealing plugs 40410 are slidably connected in the mold pipe 3, and the first connecting pipe 4046 serves to connect the second oil cylinder 4047 with the first oil cylinder 4043. Hydraulic oil is stored in the first oil cylinder 4043. When the first piston 4045 moves downward, the second piston 4048 moves downward under the action of oil pressure, thereby driving the moving frame 4049 and all the sealing plugs 40410 to move downward, so as to facilitate the complete opening of all the mold pipes 3 for subsequent smooth demoulding.

[0022] In this embodiment, Figure 1 , Figure 2 and Figure 4 As shown, the sleeve 4044 passes through the top of the airtight box 40411 and is connected to the movable plate 40412, and the bottom of the movable plate 40412 is connected to the third piston 40414 through the first compression spring 40413, the third piston 40414 is slidably connected in the airtight box 40411, and the front side of the airtight box 40411 is connected to the bottom of the blowing channel 2 through the second connecting pipe 40415. At the beginning, the second connecting pipe 40415 is sealed, and when the sleeve 4044 moves downward, it can drive the movable plate 40412, the first compression spring 40413 and the third piston 40414 to move downward, the gas in the airtight box 40411 is compressed, the first compression spring 40413 is compressed, and after the second connecting pipe 40415 is opened, the airtight box 40411 is connected with the blowing channel 2, the third piston 40414 automatically bounces down, and the blowing channel 2 automatically blows upward.

[0023] In this embodiment, Figure 1 and Figure 5 As shown, an electric telescopic column 40416 is fixed to the front side of the airtight box 40411, and a sealing plate 40417 is fixed to the bottom of the electric telescopic column 40416. The sealing plate 40417 extends into the second connecting pipe 40415. The sealing plate 40417 can move up and down under the telescopic action of the electric telescopic column 40416, so as to facilitate opening or sealing the second connecting pipe 40415.

[0024] In this embodiment, Figure 1 , Figure 2 and Figure 6 As shown, the top of the first bevel gear 403 is meshedly connected with the third bevel gear 405, the top of the support seat 1 is fixed with a fixing frame 406, the top of the third bevel gear 405 is fixed with a ratchet 407, and the ratchet 407 is rotatably connected to the top of the fixing frame 406, and the outer side of the ratchet 407 is covered with a ratchet sleeve 408. The rotation of the first bevel gear 403 can drive the third bevel gear 405 to rotate, thereby driving the ratchet 407 to rotate. When the ratchet 407 rotates forward, it can drive the ratchet sleeve 408 to rotate, and the ratchet 407 cannot drive the ratchet sleeve 408 to rotate when it rotates reversely.

[0025] In this embodiment, Figure 1 and Figure 2As shown, a first belt transmission assembly 409 is fixed to the top of the ratchet sleeve 408, and the first belt transmission assembly 409 is rotatably connected to the top of the fixed frame 406, the output end of the first belt transmission assembly 409 is connected to the rotating shaft 410, and the bottom of the rotating shaft 410 is connected to the second belt transmission assembly 412 through a universal joint 411, and the second belt transmission assembly 412 is rotatably connected to the top of the support seat 1, and the rotation of the ratchet sleeve 408 can drive the first belt transmission assembly 409 to operate, and the second belt transmission assembly 412 can operate under the driving action of the rotating shaft 410 and the universal joint 411.

[0026] In this embodiment, Figure 2 , Figure 3 and Figure 6 As shown, the output end of the second belt transmission component 412 is connected to the turntable 413, and an extrusion block 414 is fixed to the outer side of the turntable 413. The extrusion block 414 is rotationally symmetrically distributed on the turntable 413. The operation of the second belt transmission component 412 can drive the turntable 413 to rotate, and the extrusion block 414 rotates accordingly and squeezes the corresponding component.

[0027] In this embodiment, Figure 2 , Figure 3 and Figure 6 As shown, a movable frame 415 is slidably connected in the support seat 1, and a pull rod 416 is fixed on one side of the movable frame 415, and the pull rod 416 fits the inner wall of one of the extrusion blocks 414. A knocking block 417 is fixed on the other side of the movable frame 415 and on an inner wall of the movable frame 415, and the knocking block 417 is connected to the support seat 1 through a second compression spring 418. During the rotation of the turntable 413, after the extrusion block 414 contacts the pull rod 416, the extrusion block 414 will The pull rod 416, movable frame 415 and knocking block 417 are squeezed to move to the right. At this time, the second compression spring 418 is compressed. After the squeezing block 414 leaves the pull rod 416, the pull rod 416, movable frame 415 and knocking block 417 automatically pop open under the action of the second compression spring 418. When the turntable 413 rotates continuously, the knocking block 417 moves back and forth left and right, which is convenient for automatic knocking of the mold pipe 3 to avoid the product sticking to the inner wall of the mold pipe 3 and facilitate subsequent smooth demolding.

[0028] According to another aspect of the present invention, there is provided a method for demoulding a powder metallurgy product by blowing, comprising the following steps:

[0029] S1. The raw material is passed into the mold pipe 3 and pressed into shape by an external tool. After the external tool is removed, the first bevel gear 403 rotates, the second bevel gear 4041 and the screw 4042 rotate, the sleeve 4044 and the first piston 4045 move downward, the second piston 4048, the moving frame 4049 and the sealing plug 40410 move downward, so that the mold pipe 3 is connected with the blowing channel 2, and at the same time, the moving plate 40412, the first compression spring 40413 and the third piston 40414 move downward, the first compression spring 40413 is compressed, and the gas in the airtight box 40411 is compressed;

[0030] S2, the third bevel gear 405 rotates to drive the ratchet 407, the ratchet sleeve 408, the first belt transmission assembly 409, the rotating shaft 410, the universal joint 411, the second belt transmission assembly 412 and the turntable 413 to rotate, and all the extrusion blocks 414 squeeze the pull rod 416 in turn, and the movable frame 415, the pull rod 416 and the knocking block 417 move back and forth, thereby repeatedly knocking the mold pipe 3, so that the product is completely separated from the inner wall of the mold pipe 3;

[0031] S3, the sealing plate 40417 is raised, the third piston 40414 automatically pops open, and the blowing channel 2 automatically blows air upward, thereby achieving automatic demoulding.

[0032] The air blowing demoulding device of the powder metallurgy product has the following working process:

[0033] like Figures 1 to 7As shown in the figure: first, the powder raw material is passed into the mold pipe 3 and the raw material is pressed and molded by using an external tool. After the tool is removed, the first bevel gear 403 rotates to drive the second bevel gear 4041 to rotate, the screw rod 4042 rotates, the sleeve 4044 and the first piston 4045 move down, the second piston 4048, the moving frame 4049 and the sealing plug 40410 move down, so that all the mold pipes 3 are connected with the blowing channel 2, and at the same time, the moving plate 40412, the first compression spring 40410 and the first compression spring 40411 move down. The spring 40413 and the third piston 40414 move downward, the first compression spring 40413 is compressed, the air in the airtight box 40411 is compressed, the third bevel gear 405 rotates, the ratchet 407 rotates forward to drive the ratchet sleeve 408 to rotate, the turntable 413 rotates under the driving action of the rotating shaft 410, the universal joint 411 and the second belt transmission assembly 412, the squeezing block 414 squeezes the pull rod 416, the movable frame 415 and the knocking block 417 to move to the right, and the squeezing block 414 leaves the pull rod 4 After 16, the pull rod 416, the movable frame 415 and the knocking block 417 automatically pop open, the turntable 413 rotates continuously, and the knocking block 417 moves back and forth to automatically knock the mold pipe 3, so that the product is completely separated from the inner wall of the mold pipe 3. After the sealing plate 40417 is raised, the second connecting pipe 40415 connects the airtight box 40411 with the blowing channel 2, and the third piston 40414 automatically pops down, and the blowing channel 2 blows air upward, so that the product is automatically removed from the mold pipe. The first bevel gear 403 is blown out in the channel 3, thereby realizing demoulding, and then the first bevel gear 403 rotates, the second bevel gear 4041 and the third bevel gear 405 rotate, the ratchet 407 reverses and cannot drive the ratchet sleeve 408 to rotate, the knocking block 417 does not move, the moving plate 40412, the first compression spring 40413 and the third piston 40414 are reset, the moving frame 4049 and the sealing plug 40410 are reset, and the contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0034] In summary, the air blowing demoulding device and demoulding method of the powder metallurgy product achieve the purpose of knocking separation and air blowing demoulding, and meet people's use needs.

[0035] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A blowing demoulding device for powder metallurgy products, comprising a support seat (1), characterized in that: A blowing channel (2) and a mold pipe (3) are fixed inside the support seat (1), the mold pipe (3) passes through the top of the support seat (1) and is connected to the blowing channel (2), a demoulding mechanism (4) is fixed on the support seat (1), and the demoulding mechanism (4) comprises a support frame (401), the support frame (401) is fixed on the top of the support seat (1), a motor (402) is fixed on the top of the support frame (401), the output end of the motor (402) is connected to the first bevel gear (403), and a blowing mechanism (404) is fixed on one side of the support seat (1), and the blowing mechanism (404) is meshingly connected to the bottom of the first bevel gear (403).

2. The air blowing demoulding device for powder metallurgy products according to claim 1, characterized in that: The top of the first bevel gear (403) is meshedly connected with a third bevel gear (405), and the top of the support seat (1) is fixed with a fixing frame (406).

3. The air blowing demoulding device for powder metallurgy products according to claim 2, characterized in that: A ratchet wheel (407) is fixed on the top of the third bevel gear (405), and the ratchet wheel (407) is rotatably connected to the top of the fixing frame (406), and a ratchet sleeve (408) is sleeved on the outer side of the ratchet wheel (407).

4. The air blowing demoulding device for powder metallurgy products according to claim 3, characterized in that: A first belt transmission assembly (409) is fixed to the top of the ratchet sleeve (408), and the first belt transmission assembly (409) is rotatably connected to the top of the fixing frame (406).

5. The air blowing demoulding device for powder metallurgy products according to claim 4, characterized in that: The output end of the first belt transmission component (409) is connected to the rotating shaft (410), and the bottom of the rotating shaft (410) is connected to the second belt transmission component (412) through a universal joint (411), and the second belt transmission component (412) is rotatably connected to the top of the support seat (1).

6. The air blowing demoulding device for powder metallurgy products according to claim 5, characterized in that: The output end of the second belt transmission component (412) is connected to the turntable (413), and an extrusion block (414) is fixed on the outer side of the turntable (413), and the extrusion block (414) is rotationally symmetrically distributed on the turntable (413).

7. The air blowing demoulding device for powder metallurgy products according to claim 6, characterized in that: A movable frame (415) is slidably connected inside the support seat (1), and a pull rod (416) is fixed on one side of the movable frame (415).

8. The air blowing demoulding device for powder metallurgy products according to claim 7, characterized in that: The pull rod (416) is fitted with the inner wall of one of the extrusion blocks (414), and a knocking block (417) is fixed on the other side of the movable frame (415) and an inner wall of the movable frame (415), and the knocking block (417) is connected to the support seat (1) via a second compression spring (418).

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