Powder pressing assembly and pressing device

Abstract

The utility model discloses a powder material pressing assembly, a material pressing device and a material pressing method, the powder material pressing assembly comprises a female die and a material pressing piece, the female die is provided with a through internal channel, and the abutting end of the internal channel can be attached to the inner bottom face of a boat to form a concave cavity for containing powder materials when the female die stretches into the boat. The powder pressing device comprises a rack, a moving assembly and a powder pressing assembly, the bearing mechanism is provided with a bearing face, the female die is installed on the moving assembly through a lifting assembly, the lifting assembly is used for driving the female die to move between a high position and a low position located below the high position, and a pressing driving piece and a feeding assembly are further installed on the rack. The utility model has the advantages that the boat is not easy to crack and damage, materials are easy to discharge, residues can be reduced and the like.

Description

TECHNICAL FIELD

[0001] The utility model relates to powder material manufacturing equipment technical field, concretely relates to a kind of powder material pressing assembly and material pressing device. BACKGROUND

[0002] In the production and manufacturing process of hard alloy material and other materials, the prepared raw materials are usually loaded into a boat and placed in a processing device for carbonization treatment. For example, tungsten carbide powder, which is the main raw material for producing hard alloy, is generally prepared by mixing tungsten powder and carbon black in a certain proportion, loading the mixture into a boat, and placing the boat in a carbonization furnace or other device for carbonization at a certain temperature. After that, the tungsten carbide powder is obtained through ball milling and sieving.

[0003] After the powder is loaded into the boat, it is usually necessary to compact the powder in the boat before carbonization treatment to meet the production process requirements. In the prior art, the powder is directly loaded into the boat, and then a pressing mechanism is used to drive a pressing piece to extend into the boat to directly compact the powder in the boat. However, this method has the following problems: on the one hand, the boat is not supported around the side wall, and it is easy to break during compaction; on the other hand, the compacted powder is tightly combined with the inner bottom and four inner sides of the boat, which makes it difficult to remove and causes residue after carbonization. SUMMARY

[0004] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a powder material pressing assembly and material pressing device that can prevent the boat from breaking, facilitate discharging, and reduce residue.

[0005] To solve the above technical problems, the utility model adopts the following technical solutions:

[0006] A powder material pressing assembly includes a carrying mechanism for carrying a boat and a female die that can extend into the boat. The female die has a through internal passage, and the two ends of the internal passage are respectively a feeding and pressing end and an abutting end. When the female die extends into the boat, the abutting end can fit the inner bottom of the boat to form a concave cavity containing powder with the internal passage and the inner bottom of the boat. The powder material pressing assembly further includes a pressing piece for extruding the powder in the concave cavity from the feeding and pressing end into the internal passage.

[0007] The above-mentioned powder material pressing assembly preferably further includes a charging mechanism for loading powder into the concave cavity from the feeding and pressing end of the internal passage, a die driving mechanism for driving the female die to extend into and exit the boat, and a pressing driving mechanism for driving the pressing piece to extend into the internal passage to extrude the powder.

[0008] The utility model discloses still provide a kind of powder material pressing device, including rack, mobile assembly and powder material pressing assembly are installed on the rack, the bearing mechanism has the bearing surface for supporting boat between preset loading station and pressing station and moves, the recess die is installed on the mobile assembly by lifting assembly and can be driven by mobile assembly and moves between loading station and pressing station, the lifting assembly is used to drive recess die and moves between high position and low position below high position, the recess die has the space for boat to enter and exit between the abutting end of recess die and bearing mechanism when high position, the recess die can be attached to the inner bottom surface of boat on bearing mechanism when low position, the pressing piece is arranged in pressing station, the rack is also installed with pressing drive for driving the up-down movement of pressing piece and feeding assembly for supplying powder to recess die feeding pressing end located in loading station.

[0009] The powder material pressing device, preferably, the feeding assembly includes a discharge pipe and a lifting assembly arranged in the loading station, the discharge pipe is fixedly arranged above the recess die, the recess die is located in the loading station, and the discharge pipe is connected with the feeding pressing end of the recess die when the recess die is in the high position, the lifting assembly is used to lift the boat on the bearing surface in the loading station to move upward so that the recess die in the high position extends into the boat until the abutting end of the internal passage is attached to the inner bottom surface of the boat.

[0010] The powder material pressing device, preferably, the lifting assembly includes a lifting drive and a plurality of lifting rods, the lifting drive is connected with the plurality of lifting rods and can drive the plurality of lifting rods to move upward and downward synchronously to lift the boat on the bearing surface in the loading station to move upward and place the boat on the bearing surface; the discharge pipe or the feeding pressing end of the recess die is provided with a sealing ring, the sealing ring seals the gap between the discharge pipe and the feeding pressing end of the recess die when the discharge pipe is connected with the feeding pressing end of the recess die.

[0011] The powder material pressing device, preferably, the rack is provided with a closed cabin, the powder material pressing assembly is located in the closed cabin, the closed cabin is provided with a boat inlet and a boat outlet, and the boat inlet and the boat outlet are both provided with an opening and closing gate.

[0012] The powder material pressing device, preferably, the mobile assembly includes a translation seat and a translation drive, the translation seat is installed in the closed cabin in a manner that can move horizontally and reciprocally between the loading station and the pressing station through a translation guide mechanism, the translation drive is fixedly installed outside the closed cabin, and the driving end of the translation drive extends into the closed cabin and is connected with the translation seat to drive the translation seat to move horizontally and reciprocally.

[0013] Preferably, the lifting assembly comprises a lifting seat, a first lifting driving member and a jacking mechanism, the lifting seat is installed on the translation seat in a reciprocating manner between a high position and a low position through a lifting guide mechanism, the die is installed on the lifting seat, the first lifting driving member is fixedly installed outside the closed cabin, a driving end of the first lifting driving member is connected with the lifting seat through a detachable connecting mechanism and can drive the lifting seat at the loading station to reciprocate up and down, and the jacking mechanism is used for supporting the lifting seat at the low position to move from the loading station to the pressing station, jacking the lifting seat at the pressing station from the low position to the high position and supporting the lifting seat at the high position to move from the pressing station to the loading station.

[0014] Preferably, the jacking mechanism comprises a second lifting driving member, two first jacking rods and two second jacking rods, the second lifting driving member is fixedly installed outside the closed cabin, the two first jacking rods and the two second jacking rods are connected with the driving end of the second lifting driving member and are driven by the second lifting driving member to move up and down synchronously, the two first jacking rods are arranged at positions capable of supporting the lifting seat to move between the loading station and the pressing station, and the two second jacking rods are arranged at positions capable of supporting only the lifting seat at the pressing station.

[0015] Preferably, the detachable connecting mechanism comprises a clamping groove arranged on the lifting seat and a clamping joint connected with the first lifting driving member, the clamping joint is detached from the clamping groove when the lifting seat moves from the loading station to the pressing station, the clamping joint is clamped into the clamping groove when the lifting seat moves from the pressing station to the loading station, and the clamping joint is provided with two limiting portions, which are respectively arranged on the upper side and the lower side of the lifting seat when the clamping joint is clamped into the clamping groove, so that the clamping joint can drive the lifting seat to move up and down.

[0016] Preferably, the powder pressing device further comprises an in-boat assembly for sending the boat from the in-boat port to the loading surface at the loading station and an out-boat assembly for sending the boat on the loading surface at the pressing station out of the closed cabin through the out-boat port, the in-boat assembly comprises an in-boat pushing member and an in-boat driving member, the in-boat driving member is connected with the in-boat pushing member and drives the in-boat pushing member to move linearly back and forth, and the out-boat assembly comprises an out-boat pushing member and an out-boat driving member, the out-boat driving member is connected with the out-boat pushing member and drives the out-boat pushing member to move linearly back and forth.

[0017] Preferably, the machine frame is further provided with a dustproof assembly, the dustproof assembly comprises a dustproof ring and a dustproof driving member, the dustproof driving member is connected with the dustproof ring and can drive the dustproof ring to move up and down, the dustproof ring can be attached to the abutting end of the die at the pressing station by driving the dustproof ring to move up and down, and the inner side of the annular dustproof ring is provided with flexible bristles.

[0018] The powder pressing device has the advantages that the frame is further provided with a cleaning assembly for cleaning dust on the bearing surface of the loading station; the cleaning assembly comprises a brush attached to the bearing surface and a cleaning driving member connected to the brush and driving the brush to move linearly back and forth.

[0019] Compared with the prior art, the powder pressing device has the advantages that:

[0020] The powder pressing assembly is provided with a female die, and when in use, the female die can be inserted into the boat into the abutting end of the internal passage to attach to the inner bottom surface of the boat, so that the internal passage and the inner bottom surface of the boat form a recess for accommodating powder. Then, the pressing member is inserted into the internal passage to extrude the powder in the recess. After extrusion, the female die and the pressing member are withdrawn from the boat, so that a powder block with a gap between the inner side surface of the four surrounding walls of the boat can be formed in the boat. Therefore, the four surrounding walls of the boat are not subjected to stress during extrusion, and are not easy to break and damage. The powder block obtained has a gap between the inner side surface of the four surrounding walls of the boat, and after subsequent carbonization and other process treatments, the powder block is not bonded to the inner side surface of the four surrounding walls of the boat, which facilitates product removal, greatly reduces residue, reduces waste, facilitates reuse of the boat after cleaning, and improves product quality.

[0021] The powder pressing device adopts the powder pressing assembly, which not only has the advantages of the powder pressing assembly, but also cooperates with the moving assembly, the lifting assembly and the feeding assembly to realize automatic production of loading the boat in the loading station and pressing the boat in the pressing station. The powder pressing device has the advantages of simple structure, low cost, easy manufacturing and assembly, high precision of loading and pressing, and improved product quality. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is a perspective structural schematic view of the powder pressing assembly in a pressing state.

[0023] Figure 2 It is a perspective structural schematic view of the powder pressing assembly when the female die and the pressing member are withdrawn from the boat.

[0024] Figure 3 It is a first perspective structural schematic view of the powder pressing device in the first state.

[0025] Figure 4 It is a second perspective structural schematic view of the powder pressing device in the first state.

[0026] Figure 5 It is a third perspective structural schematic view of the powder pressing device in the first state.

[0027] Figure 6It is a main view structural schematic diagram of the powder pressing device in the first state.

[0028] Figure 7 It is a main view structural schematic diagram of the powder pressing device in the second state.

[0029] Figure 8 It is a main view structural schematic diagram of the powder pressing device in the third state.

[0030] Figure 9 It is a main view structural schematic diagram of the powder pressing device in the fourth state.

[0031] Figure 10 It is a main view structural schematic diagram of the powder pressing device in the fifth state.

[0032] Figure 11 It is a main view structural schematic diagram of the powder pressing device in the sixth state.

[0033] Figure 12 It is a partial enlarged perspective structural schematic diagram of the separable connecting mechanism position.

[0034] Legend:

[0035] 1, bearing mechanism; 11, bearing surface; 2, concave die; 21, internal passage; 3, pressing piece; 31, pressing driving piece; 4, moving assembly; 41, translation seat; 42, translation driving piece; 43, translation guide mechanism; 5, lifting assembly; 51, lifting seat; 511, clamping groove; 52, first lifting driving piece; 53, lifting guide mechanism; 54, second lifting driving piece; 55, first supporting rod; 56, second supporting rod; 57, clamping joint; 571, limiting part; 6, feeding assembly; 61, discharging pipe; 62, lifting assembly; 621, lifting rod; 622, lifting driving piece; 8, dustproof assembly; 81, dustproof ring; 82, dustproof driving piece; 9, cleaning assembly; 91, brush; 92, cleaning driving piece; 100, rack; 200, opening and closing gate; 300, boat feeding assembly; 301, boat feeding pushing piece; 302, boat feeding driving piece; 400, boat discharging assembly; 401, boat discharging pushing piece; 402, boat discharging driving piece. DETAILED DESCRIPTION

[0036] The utility model will be further explained in detail below in combination with the drawings and specific embodiments.

[0037] Embodiment 1:

[0038] As Figure 1 And Figure 2As shown, the powder pressing assembly of the embodiment comprises a carrying mechanism 1 for carrying a boat (labeled as Z in the figure) and a concave die 2 capable of extending into the boat, the concave die 2 having a through internal passage 21, two ends of the internal passage 21 being a feeding pressing end and an abutting end respectively, the abutting end being capable of abutting the inner bottom surface of the boat when the concave die 2 extends into the boat to make the inner bottom surface of the boat and the internal passage 21 enclose a concave cavity for accommodating powder, and the powder pressing assembly further comprises a pressing piece 3 for extending into the internal passage 21 from the feeding pressing end to extrude the powder in the concave cavity. The powder pressing assembly is provided with the concave die 2, in use, the concave die 2 can be extended into the boat until the abutting end of the internal passage 21 abuts the inner bottom surface of the boat, the inner bottom surface of the boat and the internal passage 21 enclose a concave cavity for accommodating powder, then the pressing piece 3 is extended into the internal passage 21 to extrude the powder in the concave cavity, after the extrusion is completed, the concave die 2 and the pressing piece 3 are withdrawn from the boat, so that a powder block with a gap between the powder block and the inner side surface around the boat can be formed in the boat, therefore, not only the side wall around the boat is not subjected to force in the extrusion process and is not easy to be broken and damaged, but also the powder block obtained has a gap between the powder block and the inner side surface around the boat, after subsequent carbonization and other processes, the powder block will not be bonded with the inner side surface around the boat, the product is convenient to take out, at the same time, the residual phenomenon can be greatly reduced, the waste can be reduced, the boat can be repeatedly used after cleaning, and the product quality can be improved.

[0039] The concave die 2 of the embodiment can be directly used as a pipe, which has simple structure, low cost and is easy to produce and manufacture.

[0040] In the embodiment, the powder pressing assembly further comprises a charging mechanism for charging the powder into the concave cavity from the feeding pressing end of the internal passage 21, a die driving mechanism for driving the concave die 2 to extend into and withdraw from the boat, and a pressing driving mechanism for driving the pressing piece 3 to extend into the internal passage 21 to extrude the powder, so as to realize the automation of charging and pressing. The charging mechanism, the die driving mechanism and the pressing driving mechanism can be used in the prior art, for example, a telescopic pneumatic cylinder, a telescopic oil cylinder and the like.

[0041] Embodiment 2

[0042] A powder pressing method of the powder pressing assembly of embodiment 1, comprising the following steps:

[0043] S1: placing a boat without powder into the carrying mechanism 1, and extending the concave die 2 into the boat until the abutting end of the internal passage 21 abuts the inner bottom of the boat, so that the inner bottom surface of the boat and the internal passage 21 enclose a concave cavity accommodating powder;

[0044] S2: charging a predetermined amount of powder into the concave cavity from the feeding pressing end of the internal passage 21;

[0045] S3: keep the abutting end of the internal channel 21 in contact with the inner bottom surface of the boat, so that the pressing member 3 extends into the internal channel 21 from the feeding pressing end to extrude the powder in the cavity;

[0046] S4: first make the concave die 2 exit the boat, and then make the pressing member 3 exit the boat, to complete the pressing work. The concave die 2 exits the boat first, and then the pressing member 3 exits the boat, which can prevent the pressed powder block from being lifted together with the concave die 2 as a whole or in part, so as to cause the powder block to be unable to stay in the boat and to collapse and loosen, etc.

[0047] The pressing method of the powder pressing assembly can form a powder block with a gap between the powder block and the inner side surface of the four surrounding walls of the boat in the boat, so that not only the four surrounding walls of the boat are not subjected to force during the extrusion process and are not easy to break and damage, but also the powder block obtained has a gap between the powder block and the inner side surface of the four surrounding walls of the boat, which will not be bonded with the inner side surface of the four surrounding walls of the boat after subsequent carbonization and other process treatments, facilitating the product to be taken out, while greatly reducing the residual phenomenon, reducing waste, facilitating the repeated use of the boat after cleaning, and being conducive to improving the product quality. The pressing method of the powder pressing assembly also has the advantages of simple operation, easy production implementation, high production efficiency, stable and reliable work, etc.

[0048] In this embodiment, before the concave die 2 is extended into the boat, isolation paper is laid on the inner bottom surface of the boat without powder, so that the pressed powder will not be bonded with the inner bottom surface of the boat after subsequent carbonization and other process treatments, further facilitating the product to be taken out and reducing the residual phenomenon.

[0049] Embodiment 3:

[0050] As Figures 3 to 6As shown, the powder pressing device of the embodiment comprises a rack 100, a moving assembly 4 and the powder pressing assembly of the embodiment 1 are installed on the rack 100, the carrying mechanism 1 has a carrying surface 11 for supporting the boat to move between the preset loading station and the pressing station, the concave die 2 is installed on the moving assembly 4 through the lifting assembly 5 and can be driven by the moving assembly 4 to move between the loading station and the pressing station, the lifting assembly 5 is used to drive the concave die 2 to move between the high position and the low position below the high position, when the concave die 2 is at the high position, the abutting end of the concave die 2 has a space for the boat to enter and exit between the carrying mechanism 1, when the concave die 2 is at the low position, the abutting end of the concave die 2 can fit the inner bottom surface of the boat on the carrying mechanism 1, thereby enclosing a concave cavity, the pressing piece 3 is arranged at the pressing station, the rack 100 is further provided with a pressing driving piece 31 for driving the pressing piece 3 to move up and down and a feeding assembly 6 for feeding powder to the pressing end of the concave die 2 located at the loading station. In work, the moving assembly 4 and the lifting assembly 5 make the concave die 2 located at the loading station and at the high position, first place the boat at the loading station on the carrying surface 11, drive the concave die 2 to move downward to the low position through the lifting assembly 5, make the abutting end of the concave die 2 fit the inner bottom surface of the boat and enclose a concave cavity, load the powder into the concave die 2 through the feeding assembly 6, after completing the loading, or lift the boat to make the abutting end of the concave die 2 fit the inner bottom surface of the boat and enclose a concave cavity, load the powder into the concave die 2 through the feeding assembly 6, then make the boat descend to be placed on the carrying surface 11 again while the concave die 2 remains in the state of fitting the inner bottom surface of the boat, after completing the loading. The moving assembly 4 moves the lifting assembly 5 and the concave die 2 to the pressing station, synchronously moves the concave die 2 with the boat to the pressing station, at this time, drive the pressing piece 3 to move downward to extend into the concave die 2 to extrude the powder through the pressing driving piece 31, after completing the extrusion, make the concave die 2 and the pressing piece 3 exit the boat, and the powder block with a gap between the inner side surface around the boat can be obtained. The powder pressing device adopts the powder pressing assembly of the embodiment 1, not only has the advantages of the powder pressing assembly of the embodiment 1, but also cooperates with the moving assembly 4, the lifting assembly 5 and the feeding assembly 6 to realize the automatic production of loading the boat at the loading station and then moving to the pressing station for pressing, which not only has simple structure, low cost and easy manufacturing and assembly, but also can ensure the precision of loading and pressing and improve the product quality.

[0051] In the embodiment, the feeding assembly 6 comprises a discharging pipe 61 fixedly arranged above the die 2 at the loading station and a lifting assembly 62. The discharging pipe 61 is in communication with the feeding and pressing end of the die 2 at the high position, and the die 2 is located at the loading station. At this time, the discharging pipe 61 can supply the powder to the feeding and pressing end of the die 2. The lifting assembly 62 is used to lift the boat located at the loading station on the bearing surface 11 to move upward so that the die 2 at the high position extends into the boat until the abutting end of the internal passage 21 is attached to the inner bottom surface of the boat. When the lifting assembly 62 is reset, the die 2 is placed on the bearing surface 11 again. The feeding assembly 6 is fixedly arranged with the discharging pipe 61, and the lifting assembly 62 is arranged to cooperate with the lifting die 2. The abutting end of the internal passage 21 can be attached to the inner bottom surface of the boat to form a concave cavity. The discharging pipe 61 can supply the powder into the concave cavity. After the powder is filled, the boat can be lowered to be placed on the bearing surface 11 again while the die 2 remains attached to the inner bottom surface of the boat, so that the die 2 and the boat can move synchronously along the bearing surface 11 to the pressing station while the die 2 remains attached to the inner bottom surface of the boat. The discharging pipe 61 is fixedly arranged, which can better match the fixedly arranged powder bin in actual production. The discharging pipe 61 and the die 2 are connected in a detachable manner, which avoids the problem of poor powder discharging and low precision caused by the arrangement of excessive powder conveying pipe or powder conveying mechanism between the discharging pipe 61 and the die 2. Moreover, it is beneficial to improve the overall compactness of the powder pressing device.

[0052] In the embodiment, the lifting assembly 62 comprises a lifting driving member 622 and a plurality of lifting rods 621. The lifting driving member 622 is connected to the plurality of lifting rods 621 and can drive the plurality of lifting rods 621 to move synchronously upward and downward to lift the boat located at the loading station on the bearing surface 11 to move upward and place the boat on the bearing surface 11. The lifting driving member 622 drives the plurality of lifting rods 621 to move synchronously upward and downward. When the plurality of lifting rods 621 are located at a height not higher than the bearing surface 11, the boat can be located on the bearing surface 11 and can move along the bearing surface 11. When the lifting driving member 622 drives the plurality of lifting rods 621 to move upward, the plurality of lifting rods 621 lift the boat. The lifting assembly 62 has the advantages of simple structure, low cost and simple control. The lifting driving member 622 can be a telescopic pneumatic cylinder or a telescopic oil cylinder.

[0053] In the embodiment, the discharging pipe 61 or the feeding and pressing end of the die 2 is provided with a sealing ring. When the discharging pipe 61 is in communication with the feeding and pressing end of the die 2, the sealing ring seals the gap between the discharging pipe 61 and the feeding and pressing end of the die 2. The sealing ring not only plays a buffering role when the discharging pipe 61 is in communication with the die 2, but also can prevent powder leakage and ensure loading accuracy.

[0054] In this embodiment, a closed chamber (not shown in the figure) is provided on the frame 100, and the powder pressing assembly is located inside the closed chamber. The closed chamber has an inlet and an outlet, and both the inlet and outlet are equipped with opening and closing gates 200. The closed chamber can prevent dust generated during loading and pressing from escaping into the production workshop environment, and can also meet the requirement of atmosphere protection during loading and pressing.

[0055] In this embodiment, the moving component 4 includes a translation seat 41 and a translation drive 42. The translation seat 41 is installed inside the enclosed chamber via a translation guide mechanism 43, enabling horizontal reciprocating movement between the loading station and the pressing station. The translation drive 42 is fixedly installed outside the enclosed chamber, with its driving end extending into the enclosed chamber and connecting to the translation seat 41 to drive its horizontal reciprocating movement. This moving component 4 has the advantages of simple structure, low cost, and easy control. The translation drive 42 is installed outside the enclosed chamber, avoiding the influence of dusty environments, facilitating assembly and maintenance, and reducing the size of the enclosed chamber. The translation guide mechanism 43 can be a conventional guide mechanism in the prior art, such as a guide sleeve and slide bar, or a slider and guide rail. The translation drive 42 can be a telescopic cylinder, a telescopic hydraulic cylinder, etc.

[0056] In this embodiment, the lifting assembly 5 includes a lifting seat 51, a first lifting drive 52, and a top support mechanism. The first lifting drive 52 is fixedly installed outside the enclosed chamber. The lifting seat 51 is installed on the translation seat 41 via a lifting guide mechanism 53 so that it can reciprocate up and down between a high position and a low position. The die 2 is installed on the lifting seat 51. The first lifting drive 52 is fixedly installed outside the enclosed chamber. The driving end of the first lifting drive 52 is connected to the lifting seat 51 via a separable connection mechanism and can drive the lifting seat 51 located at the loading station to reciprocate up and down. The top support mechanism is used to support the lifting seat 51 at the low position to move from the loading station to the pressing station, to lift the lifting seat 51 located at the pressing station from the low position to the high position, and to support the lifting seat 51 at the high position to move from the pressing station to the loading station. The moving component 4 has the advantages of simple structure, low cost, and easy control. The first lifting drive component 52 is fixedly installed outside the enclosed chamber, which can avoid the influence of dust environment, facilitate assembly and maintenance, and reduce the size of the enclosed chamber. At the loading station, the first lifting drive component 52 drives the lifting seat 51 and the die 2 to move up and down. At the pressing station, the top support mechanism drives the lifting seat 51 and the die 2 to move up and down. The top support mechanism at the pressing station can support the lifting seat 51, ensuring the accuracy of the angle and posture of the lifting seat 51 and the die 2, and ensuring that the pressing component 3 can accurately and reliably extrude powder. The above-mentioned lifting guide mechanism 53 can adopt conventional guide mechanisms in the prior art, such as guide sleeve and slide rod, or slider and guide rail. The first lifting drive component 52 can be a telescopic cylinder, telescopic hydraulic cylinder, etc.

[0057] In this embodiment, the top support mechanism includes a second lifting drive component 54, two first top support rods 55, and two second top support rods 56. The second lifting drive component 54 is fixedly installed outside the enclosed chamber. The two first top support rods 55 and the two second top support rods 56 are all connected to the drive end of the second lifting drive component 54 and are driven by the second lifting drive component 54 to move synchronously up and down. The two first top support rods 55 are located at positions that can support the lifting seat 51 between the loading station and the pressing station. The two second top support rods 56 are located at positions that can only support the lifting seat 51 located at the pressing station. When the lifting seat 51 is located at the loading station and in a low position, the detachable connection mechanism can separate the drive end of the first lifting drive component 52 from the lifting seat 51. By adjusting the height of the two first support rods 55, the lifting seat 51 can be supported by the two first support rods 55 to maintain a constant height, and can move from the loading station to the pressing station with the support of the two first support rods 55. After the lifting seat 51 moves to the pressing station, the two first support rods 55 and the two second support rods 56 support the lifting seat 51, which can ensure the accuracy of the angle and posture of the lifting seat 51 and the die 2. This support mechanism has the advantages of simple and compact structure, low cost and easy control. Its second lifting drive component 54 is fixedly installed outside the closed chamber, which can avoid the influence of dust environment, facilitate assembly and maintenance, and reduce the size of the closed chamber. Preferably, the driving end of the second lifting drive component 54 is connected to a connecting plate, and the two first top support rods 55 and the two second top support rods 56 are all connected to the connecting plate, so that they are driven to move up and down synchronously. The second lifting drive component 54 can be a telescopic cylinder, a telescopic hydraulic cylinder, etc.

[0058] In this embodiment, as Figure 12 As shown, the detachable connection mechanism includes a slot 511 on the lifting seat 51 and a connector 57 connected to the first lifting drive member 52. The connector 57 disengages from the slot 511 when the lifting seat 51 moves from the loading station to the pressing station, and engages with the slot 511 when the lifting seat 51 moves from the pressing station to the loading station. The connector 57 is provided with two limiting parts 571. When the connector 57 engages with the slot 511, the two limiting parts 571 are located on the upper and lower sides of the lifting seat 51 respectively so that the connector 57 can drive the lifting seat 51 to move up and down. When the lifting seat 51 moves from the loading station to the pressing station, the locking connector 57 disengages from the locking slot 511. At this time, the first lifting drive component 52 separates from the lifting seat 51 and cannot drive the lifting seat 51 to move up and down. When the lifting seat 51 moves from the pressing station to the loading station, the locking connector 57 engages with the locking slot 511. At this time, the first lifting drive component 52 engages with the lifting seat 51 and can drive the lifting seat 51 to move up and down. This detachable connection mechanism has the advantages of simple structure, low cost, and ease of manufacturing and assembly.

[0059] In the embodiment, the powder pressing device further comprises an in-boat assembly 300 for sending the boat from the in-boat port to the loading position on the carrying surface 11 and an out-boat assembly 400 for sending the boat on the carrying surface 11 at the pressing position from the out-boat port to the closed cabin, so as to realize the automatic production of the boat in and out of the closed cabin.

[0060] In the embodiment, the in-boat assembly 300 comprises an in-boat pushing member 301 and an in-boat driving member 302 connected with the in-boat pushing member 301 and driving the in-boat pushing member 301 to reciprocate linearly, so as to push the boat on the external platform to the carrying surface 11, and the out-boat assembly 400 comprises an out-boat pushing member 401 and an out-boat driving member 402 connected with the out-boat pushing member 401 and driving the out-boat pushing member 401 to reciprocate linearly, so as to push the boat on the carrying surface 11 out. The in-boat pushing member 301 and the in-boat driving member 302 have the advantages of simple structure, low cost and simple control.

[0061] In the embodiment, the rack 100 is further provided with a dustproof assembly 8 comprising a dustproof ring 81 and a dustproof driving member 82 connected with the dustproof ring 81 and driving the dustproof ring 81 to move up and down. The dustproof ring 81 can be attached to the abutting end of the die 2 at the pressing position by driving the dustproof ring 81 to move up and down, and the annular inner side of the dustproof ring 81 is provided with flexible bristles. The flexible bristles will not hinder the pressing member 3 to enter and exit the internal passage 21, and can greatly reduce the escape of the powder when the pressing member 3 enters the internal passage 21 to extrude the powder, thereby reducing waste, avoiding affecting the precision, and reducing the cleaning of the escaped powder in the closed cabin. Moreover, the dustproof ring 81 is driven by the dustproof driving member 82 to move up and down, and will not interfere with the up and down movement of the lifting seat 51 and the die 2 at the pressing position. Preferably, the dustproof ring 81 is guided by the two second top support rods 56, so that the up and down movement of the dustproof ring 81 can be ensured to be accurate without the need to set an additional guide mechanism, thereby improving the simple and compact structure and reducing the manufacturing cost.

[0062] In the embodiment, the rack 100 is further provided with a cleaning assembly 9 for cleaning the dust on the carrying surface 11 at the loading position. The cleaning assembly 9 can carry the dust accumulated on the carrying surface 11, so as to avoid affecting the movement of the boat on the carrying surface 11 and avoid the accumulated dust from being bonded to the bottom of the boat to affect the angle posture of the boat and further affect the normal pressing work.

[0063] In the embodiment, the cleaning assembly 9 comprises a brush 91 attached to the carrying surface 11 and a cleaning driving member 92 connected with the brush 91 and driving the brush 91 to reciprocate linearly. The cleaning assembly 9 has the advantages of simple structure, low cost and simple control.

[0064] The specific working method and process of the powder pressing device in the embodiment are as follows:

[0065] The opening and closing gate 200 of the boat inlet of the closed cabin is opened, a boat is sent to the bearing surface 11 at the loading position by the boat inlet assembly 300, and then the opening and closing gate 200 of the boat inlet is closed (see Figures 3 to 6 the first state shown).

[0066] When the die 2 is located at the loading position and in the high position state, the lifting assembly 62 lifts the boat until the inner bottom surface of the boat abuts against the abutting end of the die 2 to form a cavity (see Figure 7 the second state shown), and then a predetermined amount of powder is loaded into the die 2 through the discharging pipe 61.

[0067] The lifting assembly 62 lowers the boat until the boat is placed on the bearing surface 11, and during the lowering of the boat, the lifting assembly 5 synchronously drives the die 2 to lower, so that the abutting end of the die 2 remains in close contact with the inner bottom surface of the boat, and at this time, the two first supporting rods 55 of the supporting mechanism support the lifting seat 51 (see Figure 8 the third state shown).

[0068] The moving assembly 4 drives the lifting assembly 5 to move the die 2 with the boat from the loading position to the pressing position, and the die 2 moves synchronously with the boat to the pressing position (during this process, the detachable connecting mechanism disconnects the driving end of the first lifting driving member 52 from the lifting seat 51, the lifting seat 51 is supported on the two first supporting rods 55 to keep the height unchanged during the movement to the pressing position, and after reaching the pressing position, the two second supporting rods 56 and the two first supporting rods 55 simultaneously support the lifting seat 51). The dustproof ring 81 of the dustproof assembly 8 is in close contact with the abutting end of the die 2 located at the pressing position (see Figure 9 the fourth state shown).

[0069] The pressing driving member 31 drives the pressing member 3 to act downward to extend into the die 2 to extrude the powder (see Figure 10 the fifth state shown).

[0070] The die 2 is first moved upward to exit the boat, and then the pressing member 3 is moved upward to exit the boat, and during the process of the die 2 exiting the boat, the dustproof ring 81 is synchronously moved upward (see Figure 11 the sixth state shown).

[0071] The opening and closing gate 200 of the boat outlet of the closed cabin is opened, the boat is sent out of the closed cabin from the boat outlet by the boat outlet assembly 400, and then the opening and closing gate 200 of the boat outlet is closed.

[0072] The above process completes the loading and pressing of one boat, after which the moving assembly 4 drives the lifting assembly 5 to move the concave die 2 from the pressing station to the loading station, and the detachable connecting mechanism is engaged to connect the driving end of the first lifting driving member 52 with the lifting seat 51, so that the loading and pressing of the next boat can be performed. In order to improve the efficiency, the next boat can be sent to the loading surface 11 at the loading station after the loading of the previous boat is completed and the previous boat leaves the loading station.

[0073] The preferred embodiments of the present application are described above, but the protection scope of the present application is not limited to the above-mentioned embodiments. Improvements and changes made by those skilled in the art without departing from the technical concept of the present application should also be considered as falling within the protection scope of the present application.

Claims

1. A powder pressing assembly, characterized in that: The assembly includes a support mechanism (1) for carrying a boat and a concave mold (2) that can extend into the boat. The concave mold (2) has a through internal channel (21). The two ends of the internal channel (21) are a feeding end and an abutment end, respectively. When the concave mold (2) extends into the boat, the abutment end can fit against the inner bottom surface of the boat so that the inner bottom surface of the boat and the internal channel (21) enclose to form a cavity for accommodating powder. The powder pressing assembly also includes a pressing element (3) for pressing the powder in the cavity by extending from the feeding end into the internal channel (21).

2. The powder pressing assembly according to claim 1, characterized in that: The powder pressing assembly also includes a loading mechanism for loading powder into the cavity from the feeding pressing end of the internal channel (21), a mold driving mechanism for driving the die (2) to extend into and exit the boat, and a pressing driving mechanism for driving the pressing element (3) to extend into the internal channel (21) to extrude the powder.

3. A powder pressing device, characterized in that: The device includes a frame (100) on which a moving assembly (4) and a powder pressing assembly as described in claim 1 are mounted. The supporting mechanism (1) has a supporting surface (11) for supporting the movement of the vessel between a preset loading station and a pressing station. The die (2) is mounted on the moving assembly (4) via a lifting assembly (5) and can be driven by the moving assembly (4) to move between the loading station and the pressing station. The lifting assembly (5) is used to drive the die (2) at a high position and below the high position. The die (2) moves between low positions. When the die (2) is in the high position, there is space between the abutting end of the die (2) and the bearing mechanism (1) for the boat to enter and exit. When the die (2) is in the low position, the abutting end of the die (2) can fit the inner bottom surface of the boat on the bearing mechanism (1). The pressing component (3) is set in the pressing station. The frame (100) is also equipped with a pressing drive component (31) for driving the pressing component (3) to move up and down and a feeding component (6) for supplying powder to the pressing end of the die (2) located in the loading station.

4. The powder pressing device according to claim 3, characterized in that: The feeding assembly (6) includes a feeding pipe (61) and a lifting assembly (62) set at the loading station. The feeding pipe (61) is fixedly set above the die (2). When the die (2) is located at the loading station and in a high position, the feeding pipe (61) is connected to the feeding and pressing end of the die (2). The lifting assembly (62) is used to lift the boat located at the loading station on the bearing surface (11) and move it upward so that the die (2) in the high position extends into the boat until the abutting end of the internal channel (21) fits against the inner bottom surface of the boat.

5. The powder pressing device according to claim 4, characterized in that: The lifting assembly (62) includes a lifting drive (622) and multiple lifting rods (621). The lifting drive (622) is connected to the multiple lifting rods (621) and can drive the multiple lifting rods (621) to move up and down synchronously to lift the boat located at the loading station on the bearing surface (11) and place the boat on the bearing surface (11). The feeding and pressing end of the discharge pipe (61) or the die (2) is provided with a sealing ring. When the discharge pipe (61) is connected to the feeding and pressing end of the die (2), the sealing ring seals the gap between the discharge pipe (61) and the feeding and pressing end of the die (2).

6. The powder pressing device according to claim 3, characterized in that: The frame (100) is provided with a closed chamber, and the powder pressing assembly is located in the closed chamber. The closed chamber is provided with an inlet and an outlet, and both the inlet and the outlet are provided with opening and closing gates (200).

7. The powder pressing device according to claim 6, characterized in that: The moving component (4) includes a translation seat (41) and a translation drive (42). The translation seat (41) is installed in the enclosed chamber via a translation guide mechanism (43) in a manner that enables horizontal reciprocating motion between the loading station and the pressing station. The translation drive (42) is fixedly installed outside the enclosed chamber. The drive end of the translation drive (42) extends into the enclosed chamber and is connected to the translation seat (41) to drive the translation seat (41) to reciprocate horizontally.

8. The powder pressing device according to claim 7, characterized in that: The lifting assembly (5) includes a lifting seat (51), a first lifting drive (52), and a top support mechanism. The lifting seat (51) is mounted on a translation seat (41) via a lifting guide mechanism (53) in a manner that allows it to reciprocate between a high position and a low position. The die (2) is mounted on the lifting seat (51). The first lifting drive (52) is fixedly mounted outside the enclosed chamber. The drive end of the first lifting drive (52) is connected to the lifting seat (51) via a separable connection mechanism and can drive the lifting seat (51) located at the loading station to reciprocate up and down. The top support mechanism is used to support the lifting seat (51) at the low position to move from the loading station to the pressing station, to lift the lifting seat (51) located at the pressing station from the low position to the high position, and to support the lifting seat (51) at the high position to move from the pressing station to the loading station.

9. The powder pressing device according to claim 8, characterized in that: The top support mechanism includes a second lifting drive (54), two first top support rods (55) and two second top support rods (56). The second lifting drive (54) is fixedly installed outside the closed chamber. The two first top support rods (55) and the two second top support rods (56) are all connected to the drive end of the second lifting drive (54) and driven by the second lifting drive (54) to move synchronously. The two first top support rods (55) are located at a position that can support the lifting seat (51) to move between the loading station and the pressing station. The two second top support rods (56) are located at a position that can only support the lifting seat (51) located at the pressing station.

10. The powder pressing device according to claim 8, characterized in that: The detachable connection mechanism includes a slot (511) on the lifting seat (51) and a connector (57) connected to the first lifting drive (52). The connector (57) disengages from the slot (511) when the lifting seat (51) moves from the loading station to the pressing station. The connector (57) engages with the slot (511) when the lifting seat (51) moves from the pressing station to the loading station. The connector (57) is provided with two limiting parts (571). When the connector (57) engages with the slot (511), the two limiting parts (571) are located on the upper and lower sides of the lifting seat (51) respectively so that the connector (57) can drive the lifting seat (51) to move up and down.

11. The powder pressing device according to claim 6, characterized in that: The powder pressing device further includes a boat feeding assembly (300) for feeding the boat from the boat inlet to the bearing surface (11) at the loading station and a boat discharging assembly (400) for feeding the boat on the bearing surface (11) at the pressing station out of the closed chamber from the boat outlet; the boat feeding assembly (300) includes a boat feeding pusher (301) and a boat feeding drive (302), the boat feeding drive (302) is connected to the boat feeding pusher (301) and drives the boat feeding pusher (301) to reciprocate linear motion, the boat discharging assembly (400) includes a boat discharging pusher (401) and a boat discharging drive (402), the boat discharging drive (402) is connected to the boat discharging pusher (401) and drives the boat discharging pusher (401) to reciprocate linear motion.

12. The powder pressing device according to any one of claims 3 to 11, characterized in that: The frame (100) is also provided with a dustproof component (8), which includes a dustproof ring (81) and a dustproof drive component (82). The dustproof drive component (82) is connected to the dustproof ring (81) and can drive the dustproof ring (81) to move up and down. By driving the dustproof ring (81) to move up and down, the dustproof ring (81) can fit against the abutting end of the die (2) located at the pressing station. The inner annular surface of the dustproof ring (81) is provided with flexible bristles.

13. The powder pressing device according to any one of claims 3 to 11, characterized in that: The frame (100) is also provided with a cleaning component (9) for cleaning dust on the bearing surface (11) at the loading station; the cleaning component (9) includes a brush (91) that is in contact with the bearing surface (11) and a cleaning drive (92) that is connected to the brush (91) and drives the brush (91) to reciprocate linearly.

Images