Air floatation receiving tank, automatic material cutting and receiving device, forming system and forming method

Abstract

The air floatation receiving groove comprises a groove body, and the bottom of the groove body can be opened so that the bar pressed blank can fall down or can be closed so that the bar pressed blank can be kept in a suspended state and exist in the groove body. The groove body is connected with an air floatation providing assembly which is used for enabling the inner wall face of the groove body to have upward airflow so that the bar pressed blank can be kept in a suspension state. The invention further provides an automatic cutting and receiving device for the bar pressed blank and a forming system and method for the bar pressed blank. In the material receiving process, the bar pressed blank is always kept in a suspended state, friction is avoided, deformation or surface scratching of the bar pressed blank is avoided, and the product percent of pass can be greatly increased.

Description

Technical Field

[0001] The invention belongs to the technical field of cemented carbide processing, and in particular relates to a material receiving trough, a material receiving device, a molding system and a molding method. Background Art

[0002] At present, with the rise of the aerospace and maritime industries and the expansion of the new energy industry, the demand for high-quality and high-requirement rods and profiles has also increased.

[0003] At present, there are three main methods for forming carbide rod profiles: isostatic pressing, compression molding, and extrusion molding. The material receiving device matched with the extrusion molding machine is generally a simple inclined structure. During the molding process, the product is directly extruded into the graphite V-groove boat. The defects of this molding method are manual cutting, low molding efficiency, or automatic cutting but poor cut flatness. At the same time, during the process of extruding the product into the graphite V-groove boat, the product is in direct contact with the surface of the graphite V-groove boat. Due to friction and drag, the product is easy to deform and the two ends of the product are easy to bend, especially for spiral hole rods. Due to friction, the pitch will change, seriously affecting the product quality. In addition, during the molding process, the graphite V-groove boat will scratch the surface of the product, especially the graphite V-groove boat with worn surface will cause irreparable defects on the surface of the product. Summary of the invention

[0004] The technical problem to be solved by the present invention is to overcome the shortcomings and defects mentioned in the above background technology, and to provide an air flotation receiving trough for bar presses with high processing efficiency and high product qualification rate, an automatic cutting and splicing device for bar presses, and a forming system and forming method for bar presses.

[0005] In order to solve the above technical problems, the technical solution proposed by the present invention is: An air flotation receiving tank for rod blanks comprises a tank body, the bottom of which can be opened to allow the rod blanks to fall or closed to allow the rod blanks to remain suspended in the tank body, and the tank body is connected to an air flotation providing component for providing an upward airflow on the inner wall surface of the tank body to allow the rod blanks to remain suspended.

[0006] In the above-mentioned air flotation receiving groove, preferably, the groove body includes a pair of clamps, and when the bottom of the groove body is closed, the pair of clamps are V-shaped, and the clamps are connected to an opening and closing drive component for driving the clamps to move so that the bottoms of the pair of clamps are separated or closed; an air flow passage is provided in the clamps, and the air flow passage is connected to the air flotation providing component.

[0007] The air flotation receiving trough of the present invention can open or close the bottom of the trough body by driving the clamping plate to move through the opening and closing driving component. When the bottom of the trough body is opened, the bar blank falls into the receiving plate. When the bottom of the trough body is closed, the bar blank remains in a suspended state in the trough body, reducing the friction between the bar blank and the clamping plate. The purpose of the above-mentioned air flotation providing component and air flotation passage is to provide an air source to the clamping plate so that the bar blank remains in a suspended state. The air flotation providing component can be a compressed air source, and the air flotation passage can be an air path pore opened in the clamping plate. The specific structural form of the above-mentioned opening and closing driving component is not limited. For example, a motor is used to control the movement of the lead screw to drive the clamping plate to move horizontally to achieve the opening or closing of the bottom of the clamping plate.

[0008] As a general technical concept, the present invention also provides an automatic cutting and splicing device for rod blanks, including the above-mentioned air flotation receiving groove (which can be an electrically opened and closed air flotation V-groove), and also includes an air flotation support platform (which can be an air flotation V-shaped support platform) for keeping the rod blank in a suspended state, a material shearing mechanism for cutting off the rod blank extruded in an extrusion molding machine and pushing it to move, and a receiving tray for receiving the rod blank, the air flotation receiving groove and the air flotation support platform are connected end to end, the air flotation support platform is close to the discharge port of the extrusion molding machine, the material shearing mechanism is arranged above the air flotation support platform, and the receiving tray is arranged below the air flotation receiving groove.

[0009] In the present invention, an air flotation passage is provided in the air flotation support platform, and an air flotation providing component is connected thereto, and the air flotation providing component can be shared with the air flotation receiving tank. The receiving tray can be a conventional graphite V-groove boat, which is not limited by the present invention. The extrusion molding machine can also be an existing conventional extrusion molding machine, which is not limited by the present invention.

[0010] In the above-mentioned automatic material cutting device, preferably, the material shearing mechanism includes a shearing guide rail, a shearing slider and a shearing knife assembly. The shearing knife assembly is arranged on the shearing slider, and the shearing slider can be slidably arranged on the shearing guide rail. The shearing guide rail is horizontally arranged above the air flotation receiving groove and the air flotation support platform. The shearing knife assembly is arranged on the shearing slider and can slide horizontally on the shearing guide rail. The sliding path of the shearing knife assembly is above the air flotation receiving groove and the air flotation support platform, which is convenient for the shearing knife assembly to push the bar blank to move later. The driving form of the above-mentioned shearing knife assembly is not limited. A driving motor, etc. can be provided, and conventional equipment in the prior art can be used.

[0011] In the above-mentioned automatic cutting and splicing device, preferably, the shearing knife assembly includes a pair of cutters and a double-speed cylinder for driving the pair of cutters to close to achieve shearing, and the air-floating support platform is provided with a cutter avoidance groove on the side close to the extrusion molding machine, and the outer shape of the pair of cutters after closing matches the inner cavity shape of the air-floating receiving groove and the air-floating support platform so that the closed cutters move in the inner cavity of the air-floating receiving groove and the air-floating support platform to push the bar blank to slide from the air-floating support platform to the air-floating receiving groove. In the present invention, the cutter has a sharp cutting edge, and the pair of cutters can be quickly closed under the drive of the double-speed cylinder to achieve cutting of the bar blank. The double-speed cylinder can achieve rapid closure of the cutter, and cooperate with the fixed-length component to accurately control the length of the bar blank to avoid the length being affected by too long cutting time. At the same time, the above-mentioned shearing knife assembly improves the smoothness of the incision. The cutter adopts an oblique-mouth design. The oblique-mouth design makes the smoothness of the bar cut better than other designs when cutting, and the end face smoothness and accuracy are effectively improved. The cutter avoids the existence of a groove, which is convenient for the storage of a pair of cutters when not cutting. When the time for cutting has not arrived, a pair of cutters are located in the cutter avoidance groove waiting for cutting. When the fixed-length component sends a cutting signal, the cutter quickly closes to achieve cutting. At the same time, the closed cutter does not separate, and it moves quickly along the inner cavity of the air-floating receiving groove and the air-floating support, pushing the cut bar blank from the air-floating support to slide into the air-floating receiving groove, and then the cutter returns to the cutter avoidance groove, waiting for the next cutting. When the cutter returns, the cutter can move upward as a whole, and a driving component is set to drive the shearing knife assembly to move up and down.

[0012] In the above-mentioned automatic material cutting and splicing device, preferably, it also includes a first height adjustment component for adjusting the height of the air floating receiving groove and the material shearing mechanism, a second height adjustment component for adjusting the height of the air floating support platform and a third height adjustment component for adjusting the height of the receiving tray. The receiving tray is arranged on the third height adjustment component through a boat fixture for positioning the receiving tray, and the receiving tray is also connected to a horizontal driving component for driving its horizontal movement.

[0013] In the present invention, by setting the first height adjustment component, the second height adjustment component and the third height adjustment component, the required height of the equipment can be adjusted to move to a more suitable height to pick up and place the bar blank, and can match bar blanks of different diameters. The air flotation receiving tank and the air flotation support platform need to be kept at the same horizontal position and kept at the same horizontal position as the extrusion molding machine to facilitate horizontal material connection. The height of the receiving tray and the air flotation receiving tank needs to be accurately adjusted to avoid the height difference between the two being too large to cause material unloading obstacles. The boat jig has a positioning function and is used to fix the position of the docking tray. At the same time, multiple receiving trays can be placed on the boat jig. The horizontal drive component is used to drive the receiving tray to move. When the receiving tray receives a bar blank, it needs to adjust its position to facilitate the next receiving trough of the receiving trough to receive the bar blank. The above function can be achieved by the horizontal drive component. In the present invention, the first height adjustment component, the second height adjustment component, the third height adjustment component and the horizontal drive component can all adopt existing conventional equipment, such as the height adjustment component using a vertical cylinder.

[0014] In the above-mentioned automatic cutting and splicing device, it is preferred that it also includes a pitch measuring component for measuring the pitch on the bar blank and a fixed length component for measuring the length of the bar blank, the pitch measuring component is arranged on the material-dividing and shearing mechanism, the fixed length component is signal-interlocked with the material-dividing and shearing mechanism, and the fixed length component includes a laser displacement sensor and a fixed length mobile drive source for driving the laser displacement sensor to move. The pitch measuring component of the present invention can be a 3D line laser scanning sensor, which automatically detects the pitch of the carbide spiral hole rod, and displays the 3D appearance diagram for identification and identification, automatically picks out unqualified products, and greatly improves the product's qualified rate and quality inspection efficiency. The laser displacement sensor in the fixed length component can detect the length of the extruded bar blank, and can set the length of the product digitally and automatically follow the cutting to meet the needs. At the same time, the position of the laser displacement sensor is movable, and the fixed length of the fixed length component can be conveniently adjusted to meet the needs of different lengths. The structural form of the above-mentioned fixed length mobile drive source is not limited, such as using a guide rail component, etc., which is not required by the present invention.

[0015] In the above-mentioned automatic material cutting and splicing device, preferably, it also includes a base plate and a frame, the air flotation receiving groove, the air flotation support platform, the material shearing mechanism and the receiving tray are all arranged on the frame, the base plate is provided with a bottom slide rail, the frame can be slidably arranged on the base plate, and the base plate is also provided with a locking assembly for locking the frame. The frame can slide on the base plate through the bottom slide rail, so that the position of the frame on the base plate can be adjusted to adapt to different extrusion molding machines and quickly combine with different extrusion molding machines. The movement of the frame can be controlled by a hand-cranked hand wheel. At the same time, there are locking assemblies in front and behind the base plate, which can lock the frame from both ends to prevent movement. The specific structural form of the above-mentioned locking mechanism is not limited, for example, it can be used to lock the pedal.

[0016] As a general technical concept, the present invention also provides a forming system for bar blanks, including an extrusion molding machine and the above-mentioned automatic cutting and splicing device, wherein the air floating support platform and the discharge port of the extrusion molding machine are maintained at the same horizontal position.

[0017] As a general technical concept, the present invention also provides a forming method for forming a bar blank using the above-mentioned forming system, comprising the following steps: S1: the extrusion molding machine extrudes the bar blank, discharges it horizontally to the air floating support platform through the discharge port of the extrusion molding machine and keeps it in a suspended state; S2: the material-shifting and shearing mechanism shears the bar-shaped pressed green sheet into segments, and pushes the bar-shaped pressed green sheet into the air-floating receiving groove through the material-shifting and shearing mechanism, and the bar-shaped pressed green sheet always remains in a suspended state; S3: the bottom of the air flotation receiving tank is opened, so that the bar blank falls into the receiving tray, and then the bottom of the air flotation receiving tank is closed, and the receiving tray moves to receive the next bar blank; S4: Repeat steps S2 to S3 to complete the forming of a plurality of the bar blanks.

[0018] In the present invention, an air flotation receiving groove and an air flotation support platform connected end to end are provided to connect with the discharge port of the extrusion molding machine, and an air flotation design is added to the air flotation receiving groove and the air flotation support platform, and compressed air enters the air flotation passage of the air flotation receiving groove and the air flotation support platform through the air inlet, and the air flow passes through a narrow and thin nozzle to form a balanced air flow sheet on the inner wall surface of the air flotation receiving groove and the air flotation support platform, which has a strong impact force. The sheet air curtain can reach 30-40 times the ambient air, so that the bar blank can be suspended on the surface of the air flotation receiving groove and the air flotation support platform without direct contact with the air flotation receiving groove and the air flotation support platform, effectively reducing the contact friction between the bar blank and the air flotation receiving groove and the air flotation support platform, thereby effectively avoiding scratches on the surface of the bar blank and reducing the deformation of the bar blank. For products such as spiral hole rods, the pitch change can be reduced, the overall product quality will be better, and the qualified rate will be higher. At the same time, the air film formed by the large-flow airflow can make the bar blank float above the air flotation receiving trough and the air flotation support platform, which can realize horizontal production and horizontal material connection, and avoid product deformation and bending due to gravity and friction during inclined production.

[0019] The device of the present invention has a compact structure, economical cost, and no restrictions on the use environment and location. The automatic cutting and splicing device adopts a separate movable design, which is convenient for rapid combination with different extrusion molding machines.

[0020] The working principle and use process of the molding system and molding method of the present invention can be as follows: when in use, the air flotation of the air flotation support and the air flotation receiving groove is turned on, the extrusion molding machine extrude the rod material to the air flotation support, the cutter waits at the cutter avoidance groove, and the laser displacement sensor of the fixed length component detects the length of the rod material. When the set requirements are met, the cutter quickly closes and cuts the rod material. At the same time, the cutter drives the rod material to slide from the air flotation support to the air flotation receiving groove, and then the cutter returns to wait for the next cutting. During the above process, the rod material is in a suspended state. The receiving tray reaches the specified height, the receiving tray moves back and forth to the receiving position, the bottom of the air flotation receiving groove is opened, and the rod material falls into the receiving tray, the bottom of the air flotation receiving groove is closed, and then the receiving tray moves to the next receiving position to wait for the material to be received, and this cycle is repeated to complete the fully automated processing.

[0021] In the present invention, the bar blank can be a hard alloy bar profile, and the automatic cutting and splicing device is used to cooperate with the extrusion molding machine to realize the production of the hard alloy bar profile.

[0022] Compared with the prior art, the advantages of the present invention are: 1. The bottom of the air-floating receiving groove of the present invention can be opened or closed. When the bottom is opened, the bar blank (such as a cemented carbide bar profile) falls into the bottom receiving tray. When the bottom is closed, the bar blank remains in a suspended state. This structure can be convenient for directly docking with the receiving machine of the extrusion molding machine and the receiving tray to facilitate material receiving. At the same time, the bar blank always remains in a suspended state to avoid friction, deformation of the bar blank or surface scratches, which can greatly improve the product qualification rate.

[0023] 2. The automatic cutting and splicing device, molding system and molding method of the present invention connect the discharge port of the extrusion molding machine by setting an air-floating receiving groove and an air-floating support platform connected end to end. The discharge of the extrusion molding machine always remains in a suspended state to avoid friction, deformation of the bar blank or surface scratches, which can greatly improve the product qualification rate.

[0024] 3. The present invention changes the existing manual operation mode into mechanized automatic processing, with a high degree of automation, and a single person can operate multiple devices, thus greatly improving work efficiency. At the same time, the overall device of the present invention has a compact structure, economical cost, no restrictions on the use environment, and a wide range of application prospects. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0026] Figure 1It is a schematic diagram of the structure of the air flotation receiving tank used for bar blank pressing in the embodiment.

[0027] Figure 2 It is a schematic structural diagram of the automatic cutting and splicing device for bar blanks in the embodiment.

[0028] Figure 3 It is a schematic diagram of the upper structure of the automatic cutting and splicing device for bar blanks in the embodiment with some structures omitted.

[0029] Figure 4 It is a schematic structural diagram from another angle of the automatic cutting and splicing device for bar blanks in the embodiment.

[0030] Figure 5 It is a structural schematic diagram of the material shearing mechanism in the embodiment.

[0031] Figure 6 Schematic diagram of the structure of the shearing knife assembly in the embodiment.

[0032] Figure 7 It is a schematic diagram of the structure of the air floating support platform and the cutter avoidance groove in the embodiment.

[0033] Figure 8 Schematic diagram of the structure of each height adjustment component in the embodiment.

[0034] Fig. 9 It is a schematic diagram of the structure of the fixed-length component in the embodiment.

[0035] Fig.10 Schematic diagram of the structure of the pitch measuring assembly in the embodiment.

[0036] Fig.11 It is a schematic structural diagram of the receiving tray in the embodiment.

[0037] Legend 1. Trough body; 2. Opening and closing drive assembly; 3. Air flow passage; 4. Air floating support platform; 41. Cutter avoidance groove; 5. Material shearing mechanism; 51. Shearing guide rail; 52. Shearing slider; 53. Cutter; 54. Double-speed cylinder; 6. Material receiving tray; 7. First height adjustment assembly; 8. Second height adjustment assembly; 9. Third height adjustment assembly; 10. Boat fixture; 11. Pitch measurement assembly; 12. Fixed-length assembly; 121. Laser displacement sensor; 122. Fixed-length moving drive source; 13. Bottom plate; 131. Bottom slide rail; 132. Locking assembly; 14. Frame. DETAILED DESCRIPTION

[0038] In order to facilitate the understanding of the present invention, the present invention will be described more comprehensively and meticulously below in conjunction with the accompanying drawings and preferred embodiments of the present invention, but the protection scope of the present invention is not limited to the following specific embodiments.

[0039] It should be noted that when an element is described as being "fixed, fixed, connected or connected to" another element, it can be directly fixed, fixed, connected or connected to the other element, or it can be indirectly fixed, fixed, connected or connected to the other element through other intermediate connectors.

[0040] Unless otherwise defined, all the professional terms used below have the same meanings as those generally understood by those skilled in the art. The professional terms used herein are only for the purpose of describing specific embodiments and are not intended to limit the scope of protection of the present invention.

[0041] Unless otherwise specified, various raw materials, reagents, instruments and equipment used in the present invention can be purchased from the market or prepared by existing methods.

[0042] Example: like Figure 1 As shown, the air flotation receiving tank for rod blanks of this embodiment includes a tank body 1, the bottom of which can be opened to allow the rod blanks to fall or closed to allow the rod blanks to remain in a suspended state in the tank body 1, and the tank body 1 is connected to an air flotation providing component for allowing the inner wall surface of the tank body 1 to have an upward airflow to allow the rod blanks to remain in a suspended state.

[0043] In this embodiment, specifically, the tank body 1 includes a pair of clamps. When the bottom of the tank body 1 is closed, the pair of clamps are in a V shape. The clamps are connected with an opening and closing driving component 2 for driving the clamps to move so that the bottom of the pair of clamps are separated or closed; the clamps are provided with an air flow passage 3, and the air flow passage 3 is connected to the air flotation providing component. The above-mentioned opening and closing driving component 2 can be a motor-driven screw rod to drive the clamps to move horizontally, thereby realizing the opening or closing of the bottom of the clamps.

[0044] In other embodiments, the structure of the slot body 1 can be changed, such as an arc-shaped slot inside the slot, and the opening and closing method of the clamping plate can also be changed, such as only one clamping plate moves, or the clamping plate does not move horizontally but rotates.

[0045] like Figure 2-Figure 11 As shown, the automatic cutting and splicing device for bar blanks of this embodiment includes the above-mentioned air-floating receiving tank, and also includes an air-floating support platform 4 for keeping the bar blanks in a suspended state, a material-dispensing shearing mechanism 5 for cutting the bar blanks extruded in the extrusion molding machine and pushing them to move, and a receiving tray 6 for receiving the bar blanks, the air-floating receiving tank and the air-floating support platform 4 are connected end to end, the air-floating support platform 4 is close to the discharge port of the extrusion molding machine, the material-dispensing shearing mechanism 5 is arranged above the air-floating support platform 4, and the receiving tray 6 is arranged below the air-floating receiving tank. The above-mentioned receiving tray 6 can be a graphite V-groove boat.

[0046] like Figure 5 , Figure 6 , Figure 7 As shown, in this embodiment, the material shearing mechanism 5 includes a shearing guide rail 51, a shearing slider 52 and a shearing knife assembly. The shearing knife assembly is arranged on the shearing slider 52. The shearing slider 52 can be slidably arranged on the shearing guide rail 51. The shearing guide rail 51 is horizontally arranged above the air flotation receiving groove and the air flotation support 4. Specifically, the shearing knife assembly includes a pair of cutters 53 and a speed cylinder 54 for driving the pair of cutters 53 to close and achieve shearing. The air flotation support 4 is provided with a cutter avoidance groove 41 on the side close to the extrusion molding machine. The outer shape of the pair of cutters 53 after closing matches the inner cavity shape of the air flotation receiving groove and the air flotation support 4 so that the closed cutters 53 move in the inner cavity of the air flotation receiving groove and the air flotation support 4 to push the bar blank to slide from the air flotation support 4 to the air flotation receiving groove. In this embodiment, in order to facilitate the back and forth movement of the cutter 53, an up and down driving assembly for moving the cutter 53 up and down can also be provided. When the cutter 53 needs to return to its position after pushing the material, the up and down driving assembly drives the cutter 53 to move upward, then moves horizontally, and finally descends to the cutter avoidance groove 41.

[0047] like Figure 8 , Fig.11 As shown, in this embodiment, it also includes a first height adjustment component 7 for adjusting the height of the air flotation receiving groove and the material shearing mechanism 5, a second height adjustment component 8 for adjusting the height of the air flotation support platform 4, and a third height adjustment component 9 for adjusting the height of the receiving tray 6. The receiving tray 6 is arranged on the third height adjustment component 9 through a boat jig 10 for positioning the docking material tray 6, and the receiving tray 6 is also connected to a horizontal driving component for driving its horizontal movement. In this embodiment, the specific structural form of each height adjustment component and horizontal driving component is not limited. The boat jig 10 can be used to position the docking material tray 6, and one boat jig 10 can be provided with multiple receiving trays 6, such as Fig.10 For example, one boat fixture 10 can be provided with two receiving trays 6 .

[0048] like Fig. 9 , Fig.10 As shown, in this embodiment, it also includes a pitch measuring component 11 for measuring the pitch on the bar blank and a fixed length component 12 for measuring the length of the bar blank. The pitch measuring component 11 is arranged on the material-dispensing shearing mechanism 5, and the fixed length component 12 is signal-interlocked with the material-dispensing shearing mechanism 5. The cutter 53 of the material-dispensing shearing mechanism 5 moves according to the signal fed back from the fixed length component 12. The fixed length component 12 includes a laser displacement sensor 121 and a fixed length mobile drive source 122 for driving the laser displacement sensor 121 to move. When the laser displacement sensor 121 detects the bar blank, the cutter 53 performs a shearing action. In this embodiment, the pitch measuring component 11 can be a 3D line laser scanning sensor, and the structural form of the fixed length mobile drive source 122 can be unlimited, such as a combination of a guide rail and a drive motor.

[0049] like Figure 1 As shown, in this embodiment, it also includes a base plate 13 and a frame 14. The air flotation receiving groove, the air flotation support platform 4, the material shearing mechanism 5 and the receiving tray 6 are all arranged on the frame 14. The base plate 13 is provided with a bottom slide rail 131. The frame 14 can be slidably arranged on the base plate 13. The base plate 13 is also provided with a locking assembly 132 for locking the frame 14.

[0050] The forming system for rod blanks of this embodiment includes the above-mentioned automatic cutting and splicing device of the extrusion molding machine. The air flotation support platform 4 and the discharge port of the extrusion molding machine are maintained at the same horizontal position, which can realize horizontal production and horizontal splicing, and avoid deformation and bending of the rod blank products due to gravity and friction during inclined production.

[0051] The forming method of the present embodiment using the above-mentioned forming system for bar blank forming comprises the following steps: S1: The extrusion molding machine extrudes the bar blank, discharges it horizontally through the discharge port of the extrusion molding machine onto the air flotation support platform 4 and keeps it in a suspended state; S2: The material shearing mechanism 5 shears the bar pressed green sheet into segments, and pushes the bar pressed green sheet into the air-floating receiving tank through the material shearing mechanism 5, and the bar pressed green sheet always remains in a suspended state; S3: The bottom of the air flotation receiving tank is opened, so that the bar blank falls into the receiving tray 6, and then the bottom of the air flotation receiving tank is closed, and the receiving tray 6 moves to receive the next bar blank; S4: Repeat steps S2 to S3 to complete the forming of multiple bar blanks.

[0052] More specifically, the workflow of the molding system and molding method of this embodiment can be as follows: when in use, the air flotation of the air flotation support 4 and the air flotation receiving groove is opened, the extrusion molding machine extrude the bar material to the air flotation support 4, the cutter 53 waits at the cutter avoidance groove 41, and the laser displacement sensor 121 of the fixed length component 12 detects the length of the bar material. When the set requirements are met, the cutter 53 quickly closes and cuts the bar material. At the same time, the cutter 53 drives the bar material to slide from the air flotation support 4 to the air flotation receiving groove, and then the cutter 53 returns to wait for the next cutting. During the above process, the bar material is in a suspended state. The receiving tray 6 reaches the specified height, the receiving tray 6 moves forward and backward to the receiving position, the bottom of the air flotation receiving groove is opened, and the bar material falls into the receiving tray 6, the bottom of the air flotation receiving groove is closed, and then the receiving tray 6 moves to the next receiving position to wait for the material, and so on, to complete the fully automated processing. During the above forming process, the bar blank is always kept in a suspended state to avoid friction, deformation or surface scratches of the bar blank, which can greatly improve the product qualification rate.

[0053] In this embodiment, the bar blank can be a hard alloy bar profile, and the automatic cutting and splicing device is used to cooperate with the extrusion molding machine to realize the production of the hard alloy bar profile. In other embodiments, the bar blank can also be other types of products.

[0054] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An air flotation receiving tank for bar blank pressing, characterized in that: The invention comprises a trough body (1), the bottom of which can be opened to allow the bar pressed blank to fall down, or closed to allow the bar pressed blank to remain in a suspended state within the trough body (1), and the trough body (1) is connected to an air flotation providing component for providing an upward airflow on the inner wall surface of the trough body (1) to allow the bar pressed blank to remain in a suspended state.

2. The air flotation receiving tank according to claim 1, characterized in that: The trough body (1) comprises a pair of clamping plates. When the bottom of the trough body (1) is closed, the pair of clamping plates are in a V shape. The clamping plates are connected to an opening and closing driving component (2) for driving the clamping plates to move so that the bottoms of the pair of clamping plates are separated or closed. An air flow passage (3) is provided in the clamping plates, and the air flow passage (3) is connected to the air flotation providing component.

3. An automatic cutting and splicing device for bar blanks, characterized in that: It comprises the air flotation receiving trough as described in claim 1 or 2, and also comprises an air flotation support platform (4) for keeping the bar blank in a suspended state, a material shearing mechanism (5) for cutting the bar blank extruded in an extrusion molding machine and pushing it to move, and a receiving tray (6) for receiving the bar blank, wherein the air flotation receiving trough and the air flotation support platform (4) are connected end to end, the air flotation support platform (4) is close to the discharge port of the extrusion molding machine, the material shearing mechanism (5) is arranged above the air flotation support platform (4), and the receiving tray (6) is arranged below the air flotation receiving trough.

4. The automatic cutting and splicing device according to claim 3 is characterized in that: The material shearing mechanism (5) comprises a shearing guide rail (51), a shearing slider (52) and a shearing knife assembly, wherein the shearing knife assembly is arranged on the shearing slider (52), the shearing slider (52) is slidably arranged on the shearing guide rail (51), and the shearing guide rail (51) is horizontally arranged above the air-floating receiving groove and the air-floating support platform (4).

5. The automatic cutting and splicing device according to claim 4, characterized in that: The shearing knife assembly comprises a pair of cutters (53) and a speed-multiplying cylinder (54) for driving the pair of cutters (53) to close to achieve shearing. The air flotation support platform (4) is provided with a cutter avoidance groove (41) on the side close to the extrusion molding machine. The outer shape of the pair of cutters (53) after closing matches the inner shape of the air flotation receiving groove and the air flotation support platform (4) so ​​that the closed cutters (53) can move in the inner cavity of the air flotation receiving groove and the air flotation support platform (4) to push the bar blank to slide from the air flotation support platform (4) to the air flotation receiving groove.

6. The automatic cutting and splicing device according to claim 3, characterized in that: It also includes a first height adjustment component (7) for adjusting the height of the air-floating receiving groove and the material-dispensing shearing mechanism (5), a second height adjustment component (8) for adjusting the height of the air-floating support platform (4), and a third height adjustment component (9) for adjusting the height of the material receiving tray (6). The material receiving tray (6) is arranged on the third height adjustment component (9) via a boat fixture (10) for positioning the material receiving tray (6), and the material receiving tray (6) is also connected to a horizontal driving component for driving the horizontal movement thereof.

7. The automatic cutting and splicing device according to claim 3, characterized in that: It also includes a pitch measuring component (11) for measuring the pitch of the bar blank and a length fixing component (12) for measuring the length of the bar blank, wherein the pitch measuring component (11) is arranged on the material shifting and shearing mechanism (5), the length fixing component (12) is signal-interlocked with the material shifting and shearing mechanism (5), and the length fixing component (12) includes a laser displacement sensor (121) and a fixed-length moving driving source (122) for driving the laser displacement sensor (121) to move.

8. The automatic cutting and splicing device according to claim 3, characterized in that: It also includes a bottom plate (13) and a frame (14); the air-floating receiving groove, the air-floating support platform (4), the material-dispensing shearing mechanism (5) and the material-receiving tray (6) are all arranged on the frame (14); a bottom slide rail (131) is provided on the bottom plate (13); the frame (14) can be slidably arranged on the bottom plate (13); and a locking assembly (132) for locking the frame (14) is also provided on the bottom plate (13).

9. A forming system for bar blanks, characterized in that: It comprises an extrusion molding machine and the automatic cutting and splicing device according to any one of claims 1 to 8, wherein the air floating support platform (4) is maintained at the same horizontal position as the discharge port of the extrusion molding machine.

10. A method for forming a bar blank using the forming system as claimed in claim 9, characterized in that: The following steps are involved: S1: the extrusion molding machine extrudes the bar blank, discharges it horizontally onto the air flotation support platform (4) through the discharge port of the extrusion molding machine and keeps it in a suspended state; S2: the material shifting and shearing mechanism (5) shears the bar material compact into segments, and pushes the bar material compact into the air-floating receiving groove through the material shifting and shearing mechanism (5), and the bar material compact always remains in a suspended state; S3: the bottom of the air flotation receiving groove is opened, so that the bar blank falls into the receiving tray (6), and then the bottom of the air flotation receiving groove is closed, and the receiving tray (6) moves to receive the next bar blank; S4: repeating steps S2 to S3 to complete the forming of a plurality of the bar blanks.

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