Double-die-cavity 48-station quick-changing cutting blade forming machine

Abstract

The utility model relates to a double-die-cavity 48-station quick-change cutting blade forming machine which comprises a machine frame, a plurality of double-hole die turning plates, a plurality of dies and a production station arranged on the machine frame, the double-hole die turning plates are sequentially arranged end to end to form a shape like a Chinese character'hui ', and the double-hole die turning plates circularly slide on the machine frame in the shape like the Chinese character'hui'. Two sets of molds are detachably arranged on each double-hole mold turning plate; the mold comprises a mold ring, a mold bottom with a core rod in the center and a mold cover, the mold bottom is detachably arranged at the inner bottom of the mold ring, the middle of the upper surface of the mold bottom sinks downwards, the mold cover is detachably arranged at the inner top of the mold ring, the middle of the lower surface of the mold cover protrudes downwards, and the mold cover is matched with the mold bottom to press and form the convex grinding wheel. The number of the production stations is forty-eight, and the double-hole mold turning plate drives the mold to circularly slide among the forty-eight production stations. Convex grinding wheels can be produced through forty-eight production stations, plane grinding wheels can be produced after molds are replaced and corresponding equipment is stopped, and one machine has two purposes.

Description

Technical Field

[0001] The utility model relates to the technical field of abrasive tool and abrasive production equipment, in particular to a double-cavity 48-station fast-changing cutting blade forming machine. Background Art

[0002] Plane grinding wheels are one of the more common grinding wheels on the market. The manufacturing process and equipment of plane grinding wheels are already existing technologies. For example, patent publication number CN217621770U discloses a multi-cavity slicing rotary scraper automatic forming unit, and patent application number 2024201834368 discloses a double press 22-station large slicing automatic forming machine, both of which can be used for the production of plane grinding wheels.

[0003] The above equipment is not suitable for the manufacture of convex grinding wheels. Figure 1 As shown in the figure, the middle of the grinding wheel is circular and convex upwards, three layers of glass fiber mesh are arranged inside the grinding wheel, the plane of the grinding wheel convex upwards is arranged with trademark paper, and a core ring is arranged in the center of the grinding wheel. This is different from the shape and layer structure of conventional plane grinding wheels, so the manufacturing process is also different, and then the manufacturing equipment of conventional plane grinding wheels cannot meet the needs of producing convex grinding wheels. For this reason, a dual-cavity 48-station quick-change cutting disc forming machine is proposed. Summary of the invention

[0004] In order to solve the problem that conventional grinding wheel manufacturing equipment cannot produce both flat grinding wheels and convex grinding wheels, the utility model provides a dual-cavity 48-station quick-change cutting disc forming machine, which is based on the existing grinding wheel manufacturing equipment and is modified to enable it to produce convex grinding wheels. After replacing the corresponding mold and stopping the corresponding equipment, flat grinding wheels can be produced, and the production of flat grinding wheels and convex grinding wheels can be achieved.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A double-cavity 48-station fast-change cutting disc forming machine comprises a frame, a plurality of double-hole mold plates and molds, and a production station arranged on the frame, wherein the plurality of double-hole mold plates are arranged end to end in a "U" shape, and the double-hole mold plates are cyclically slid on the frame in a "U" shape, and each double-hole mold plate is detachably provided with two sets of the molds, so as to facilitate the production of two grinding wheels at one time;

[0007] The number of the production stations is forty-eight, and the double-hole mold car plate drives the mold to circulate and slide between the forty-eight production stations. The forty-eight production stations are, in order, empty station one, bottom pressing station one, net placing station one, empty station two, spare net placing station one, net baking station one, net pressing station one, material feeding station one, material spreading station one, fine spreading station one, net placing station two, vertical pushing station one, empty station three, horizontal pushing station one, spare net placing station two, net baking station two, net pressing station two, material feeding station two, material spreading station two , fine spreading station two, net placing station three, empty station four, spare net placing station three, net baking station three, pre-pressing station, empty station five, mold cover placing station, mold cover pressing station, empty station six, empty station seven, empty station eight, flipping station one, mold bottom moving station, empty station nine, trademark station, vertical pushing station two, empty station ten, horizontal pushing station two, empty station eleven, core ring station, mold bottom placing station, bottom pressing station two, empty station twelve, pressing station, empty station thirteen, flipping station two, mold cover moving station and mold unloading station.

[0008] Furthermore, the mold includes a mold ring, a mold bottom with a core rod in the center, and a mold cover. The mold bottom is detachably provided at the bottom of the mold ring, and the middle of the upper surface of the mold bottom is circular and concave downward. The mold cover is detachably provided at the top of the mold ring, and the middle of the lower surface of the mold cover is circular and convex downward. The mold cover cooperates with the mold bottom to press and form a convex grinding wheel. The shape of the mold is used to produce convex grinding wheels. If a flat grinding wheel is to be produced, the mold must be replaced.

[0009] Furthermore, two die bottom pressing devices are provided in the bottom pressing station 1 and the bottom pressing station 2, and the die bottom pressing device comprises a gate-shaped support frame, a bottom pressing cylinder arranged above the support frame, and a bottom pressing plate arranged below the support frame. The bottom pressing cylinder is inverted, and the piston rod of the bottom pressing cylinder extends downward to connect the bottom pressing plate. The bottom pressing plate is a circular plate, and a plurality of adjusting screws are arranged circumferentially on the bottom pressing plate to facilitate the bottom pressing plate and the adjusting screws to move together;

[0010] Two die covering devices are arranged in the die covering station. The die covering device and the die bottom device have the same structure. The die covering device is not shown in the figure.

[0011] Further, the net-releasing station one and the spare net-releasing station three are arranged on both sides of the width direction of the frame, the spare net-releasing station one and the net-releasing station three are arranged on both sides of the width direction of the frame, and the net-releasing station two and the spare net-releasing station two are arranged on both sides of the width direction of the frame;

[0012] The net-laying station 1, the spare net-laying station 1, the net-laying station 2, the spare net-laying station 2, the net-laying station 3 and the spare net-laying station 3 are all provided with a mesh delivery device to facilitate the delivery of the glass fiber mesh into the mold;

[0013] The first, second and third grilling grid stations are each provided with a grilling grid device, the grilling grid device comprising a rectangular grilling grid cover and a heating tube arranged in the grilling grid cover, the lower end of the grilling grid cover is open, which is equivalent to the grilling grid cover being arranged above the mold to facilitate heat dissipation toward the mold.

[0014] Furthermore, two mesh pressing devices are provided in the mesh pressing station 1 and the mesh pressing station 2. The principle of the mesh pressing device is similar to that of the die bottom pressing device. The mesh pressing device comprises a mesh pressing frame, a mesh pressing cylinder arranged above the mesh pressing frame, and a mesh pressing plate arranged below the mesh pressing frame. The mesh pressing cylinder is inverted, and the piston rod of the mesh pressing cylinder extends downward to connect the mesh pressing plate. A hole is opened in the middle of the mesh pressing plate to avoid interference with the core rod. The lower surface of the mesh pressing plate is circularly convex downward and matched with the upper surface of the die bottom. The mesh pressing plate cooperates with the die bottom to ensure the shape of the mesh.

[0015] The feeding station one and the feeding station two are arranged on both sides of the width direction of the frame respectively. Both the feeding station one and the feeding station two are provided with molding material feeding devices. There are two molding material feeding devices in the feeding station one and the feeding station two, which is convenient for quantitatively feeding the grinding wheel molding material into the two sets of molds at the same time.

[0016] Furthermore, the material spreading station 1, fine spreading station 1, material spreading station 2 and fine spreading station 2 are all provided with a scraping device and a mold rotating device arranged above and below the mold; the equipment arranged in the material spreading station and the fine spreading station is the same, the difference is that the operating precision of the equipment is different, and the operating precision of the equipment in the fine spreading station is higher;

[0017] The longitudinal pushing station one, transverse pushing station one, longitudinal pushing station two and transverse pushing station two are arranged at the four corners of the frame in sequence. The longitudinal pushing station one, transverse pushing station one, longitudinal pushing station two and transverse pushing station two are all provided with pushing electric cylinders. A pushing plate is connected to the driving rod of the pushing electric cylinder. The pushing plate pushes the double-hole mold car plate to slide on the frame, thereby facilitating the "U"-shaped circular sliding of the double-hole mold car plate.

[0018] Furthermore, a pre-pressing press is provided in the pre-pressing station, and the pre-pressing press comprises an upper beam plate, a lower beam plate, a column, a hydraulic cylinder, a pressure head seat and a pre-pressing pressure head. The upper beam plate and the lower beam plate are arranged at intervals in the upper and lower directions, and four columns are provided between the upper beam plate and the lower beam plate for connection. Two hydraulic cylinders are provided on the left and right sides of the upper beam plate, and the piston rod of each hydraulic cylinder extends downward to connect the pressure head seat. The pre-pressing pressure head is provided below the pressure head seat, and a hole is opened in the middle of the pre-pressing pressure head to prevent interference with the core rod;

[0019] The pressure head seat is also provided with a guide connecting plate, which is arranged horizontally, and an anti-rotation rod is vertically provided at one end of the guide connecting plate, and the anti-rotation rod passes through the upper beam plate and is slidably connected with the upper beam plate, so as to ensure the accuracy of the up and down displacement of the pre-pressing pressure head, and a mold buckle plate is also provided between the two corresponding columns, and the mold buckle plate limits the double-hole mold plate and the mold ring, so as to ensure that the mold ring will not be driven to move upward when the pre-pressing pressure head is reset;

[0020] A final pressing machine is arranged in the pressing station, and the final pressing machine is a three-beam four-column hydraulic press. An upper floating pressing head is arranged at the upper part of the final pressing machine, and a lower pressing head is fixed at the lower part of the final pressing machine. The upper floating pressing head and the lower pressing head are arranged in a corresponding manner at an upper and lower interval, and the two cooperate to press the molding material to form it into a grinding wheel.

[0021] The trademark station is provided with a trademark placing device for placing the trademark paper into the mold, and the core ring station is provided with a core ring placing device for placing the core ring into the mold.

[0022] Furthermore, the mold cover placing station and the mold cover moving station are arranged on both sides of the frame width direction, and a mold cover transfer device is arranged between the mold cover placing station and the mold cover moving station, and the mold cover transfer device includes two support rods arranged on both sides of the frame width direction, a transfer linear module arranged between the two support rods, and a transfer mechanism controlled by the transfer linear module, and the transfer mechanism reciprocates between the mold cover placing station and the mold cover moving station;

[0023] Two rotating wax coating plates are also arranged on the frame below the transfer linear module. The transfer mechanism includes a horizontal slide and a picking mechanism arranged on both sides of the horizontal slide. The rotating wax coating plate and the picking mechanism correspond one to one. The picking mechanisms on both sides correspond to the two sets of molds on the double-hole mold plate. The picking mechanism on each side includes an inverted picking cylinder and an electromagnet controlled by the picking cylinder, and the electromagnet is used to absorb or release the mold cover.

[0024] The mold bottom placing station and the mold bottom moving station are arranged on both sides of the frame width direction respectively, and a mold bottom transfer device is arranged between the mold bottom placing station and the mold bottom moving station. The mold bottom transfer device is the same as the mold cover transfer device, and the mold bottom transfer device is not shown in the figure;

[0025] A mold pressing block is arranged on the racks corresponding to the mold bottom moving station and the mold cover moving station, and the upper end of the mold pressing block is horizontally bent and arranged on the mold ring to prevent the mold ring from moving upward.

[0026] Furthermore, the flipping station 1 and the flipping station 2 are both provided with a double-mold flipping device, which is convenient for driving the double-hole mold plate and the mold to flip 180 degrees together. The double-mold flipping device includes a mounting plate, a vertical plate, a flipping motor, a cylinder, an inner frame and a top cover;

[0027] The flip motor is arranged below the mounting plate, and two vertical plates are fixedly arranged above the mounting plate at intervals, a cylinder is rotatably arranged between the two vertical plates, a top cover is also arranged between the two vertical plates, and the top cover is arranged outside the cylinder, the flip motor and the cylinder are driven by a belt to drive the cylinder to rotate, and the inner frame is arranged inside the cylinder, the inner frame is a rectangular shell with openings at both ends and a hollow interior, the cross-section of the inner frame is adapted to the cross-section of the double-hole mold lathe plate, and the double-hole mold lathe plate drives the mold to pass through the inner frame.

[0028] Furthermore, a mold unloading device and a flat belt conveyor are provided in the mold unloading station, and the mold unloading device includes two vertical support rods arranged on both sides of the frame in the width direction, a mold unloading linear module arranged between the two vertical support rods, and a mold unloading mechanism controlled by the mold unloading linear module;

[0029] The mold unloading mechanism includes a mold unloading slide and a suction cup assembly and a wax coating assembly arranged on both sides of the mold unloading slide. The suction cup assembly is used to pick up the grinding wheel in the mold. The suction cup assembly includes a suction cup cylinder and two pneumatic suction cups controlled by the suction cup cylinder. The wax coating assembly is used to clean the empty mold. The wax coating assembly includes a wax coating cylinder and two rotating wax coating discs controlled by the wax coating cylinder.

[0030] Through the above technical solution, the beneficial effects of the utility model are:

[0031] The utility model has a reasonable structural design. It optimizes and transforms conventional plane grinding wheel manufacturing equipment, adds multiple net placing, baking and pressing stations, and meets the production requirements of placing multiple layers of glass fiber mesh in convex grinding wheels. At the same time, a pre-pressing station is added, and a pre-pressing press is used to make it initially formed. A mold cover placing station, a mold cover moving station, a flipping station, a mold bottom placing station and a mold bottom moving station are also added, so that the mold can be reset after flipping, that is, the mold cover can be at the top or bottom, so that the convex surface of the convex grinding wheel faces upward, which is convenient for the placement of trademark paper and core rings. In this way, the production and manufacturing of convex grinding wheels is realized. If a plane grinding wheel is to be manufactured, it is only necessary to replace the mold and stop the corresponding production equipment. In this way, one device is equivalent to two, and it can produce convex grinding wheels and plane grinding wheels, realizing the molding of two different types of grinding wheels. While the equipment layout is reasonable, it also effectively improves production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a cross-sectional view of a convex grinding wheel.

[0033] Figure 2 The utility model is a schematic diagram of a double-hole die plate carrying a die in a "U"-shaped circular sliding manner of a double-die cavity 48-station fast-changing cutting disc forming machine.

[0034] Figure 3It is a schematic diagram of the mold of the double-cavity 48-station quick-change cutting blade forming machine of the utility model.

[0035] Figure 4 It is an axonometric diagram of the overall structure of the utility model double-cavity 48-station quick-change cutting disc forming machine.

[0036] Figure 5 It is a schematic diagram of the production stations of the utility model double-cavity 48-station fast-changing cutting disc forming machine.

[0037] Figure 6 The utility model is a schematic diagram of a die bottom device of a double-cavity 48-station fast-changing cutting disc forming machine.

[0038] Figure 7 It is a schematic diagram of the arrangement of the mesh delivery devices in the mesh placing station 1 and the spare mesh placing station 3 of the dual-cavity 48-station quick-change cutting sheet forming machine of the utility model.

[0039] Figure 8 It is a schematic diagram of a grill device of a double-cavity 48-station fast-changing cutting sheet forming machine of the utility model.

[0040] Fig. 9 It is a schematic diagram of a screen pressing device of a double-cavity 48-station quick-change cutting sheet forming machine of the utility model.

[0041] Fig.10 The utility model is a schematic diagram of a molding material feeding device of a double-cavity 48-station fast-changing cutting blade molding machine.

[0042] Fig.11 The utility model is a schematic diagram of the arrangement of the scraping device and the mold rotating device of the double-cavity 48-station quick-change cutting disc forming machine.

[0043] Fig.12 It is a schematic diagram of a pre-pressing machine of a double-cavity 48-station quick-change cutting disc forming machine of the utility model.

[0044] Fig.13 It is a schematic diagram of a mold cover transfer device of a double-cavity 48-station quick-change cutting disc forming machine of the utility model.

[0045] Fig.14 It is a schematic diagram of a mold pressing block of a double-cavity 48-station quick-change cutting disc forming machine of the utility model.

[0046] Fig.15 It is a front view of a double-mold flipping device of a double-mold cavity 48-station quick-change cutting disc forming machine of the utility model.

[0047] Fig.16 This is a main axonometric view of a dual-mold flipping device of a dual-mold cavity 48-station fast-changing cutting disc forming machine of the utility model, in which the top cover is not shown.

[0048] Fig.17 The utility model is a schematic diagram of a trademark placing device of a double-cavity 48-station fast-changing cutting disc forming machine.

[0049] Fig.18 The utility model is a schematic diagram of a core ring delivery device of a double-cavity 48-station fast-changing cutting disc forming machine.

[0050] Fig.19 It is a schematic diagram of the final pressing machine of the double-cavity 48-station quick-change cutting disc forming machine of the utility model.

[0051] Fig. 20 The utility model is a schematic diagram of a mold unloading device of a double-cavity 48-station fast-changing cutting disc forming machine.

[0052] The numbers in the attached drawings are: 1 glass fiber mesh, 2 trademark paper, 3 core ring, 4 frame, 5 double hole mold car plate, 6 mold, 601 mold ring, 602 core rod, 603 mold bottom, 604 mold cover, 7 empty station one, 8 bottom pressing station one, 9 net putting station one, 10 empty station two, 11 spare net putting station one, 12 baking net station one, 13 net pressing station one, 14 feeding station one, 15 spreading material station one, 16 fine spreading station one, 17 net putting station two, 18 longitudinal pushing station one, 19 empty station three, 20 horizontal pushing station one, 21 spare net putting station two, 22 baking net station two, 23 net pressing station two, 24 feeding station two, 25 spreading material station two, 26 fine spreading station two, 2 7 Net-releasing station three, 28 Empty station four, 29 Standby net-releasing station three, 30 Baking net station three, 31 Pre-pressing station, 32 Empty station five, 33 Mold cover placing station, 34 Mold cover pressing station, 35 Empty station six, 36 Empty station seven, 37 Empty station eight, 38 Flipping station one, 39 Mold bottom moving station, 40 Empty station nine, 41 Trademark station, 42 Vertical push station two, 43 Empty station ten, 44 Horizontal push station two, 45 Empty station eleven, 46 Core ring station, 47 Mold bottom placing station, 48 Mold bottom pressing station two, 49 Empty station twelve, 50 Pressing station, 51 Empty station thirteen, 52 Flipping station two, 53 Mold cover moving station, 54 Mold unloading station, 55 Mold bottom pressing device, 5 51 support frame, 552 bottom pressing cylinder, 553 bottom pressing plate, 56 mesh delivery device, 561 fixed plate, 562 rotating plate, 563 rotating cylinder, 564 mesh stack, 565 top mesh cylinder, 566 horizontal moving mechanism, 567 separation and picking mechanism, 57 baking mesh device, 58 mesh pressing device, 581 mesh pressing frame, 582 mesh pressing cylinder, 583 mesh pressing plate, 59 molding material delivery device, 60 scraper device, 61 mold rotating device, 62 push cylinder, 63 pre-pressing press, 631 upper beam plate, 632 lower beam plate, 633 column, 634 hydraulic cylinder, 635 pressure head seat, 636 pre-pressing pressure head, 637 guide connecting plate, 638 anti-rotation rod, 6 4 mold gusset plate, 65 mold cover transfer device, 651 support rod, 652 transfer linear module, 653 rotary wax coating plate 1, 654 horizontal slide, 655 picking mechanism, 656 picking cylinder, 657 electromagnet, 66 mold block, 67 double mold flipping device, 671 mounting plate, 672 vertical plate, 673 flip motor, 674 cylinder, 675 inner frame, 676 top cover, 68 trademark delivery device, 69 core ring delivery device, 70 final pressing press, 71 upper floating pressure head, 72 lower pressure head, 73 mold unloading device, 731 vertical support rod, 732 mold unloading linear module, 733 mold unloading slide, 734 suction cup assembly, 735 wax coating assembly, 74 flat belt conveyor. DETAILED DESCRIPTION

[0053] The specific implementation of the utility model is described in detail below with reference to the accompanying drawings:

[0054] like Figure 2~Figure 20As shown, the double-cavity 48-station fast-change cutting sheet forming machine comprises a frame 4, a plurality of double-hole mold plates 5 and a mold 6, and a production station arranged on the frame 4. The frame 4 is a rectangular frame structure, and a plurality of double-hole mold plates 5 are arranged end to end in a "U" shape, and the double-hole mold plates 5 are cyclically slid on the frame 4 in a "U" shape, that is, the moving track of the double-hole mold plates 5 is a "U" shape, as shown in FIG. Figure 2 Each double-hole mold plate 5 is detachably provided with two sets of molds 6, and the double-hole mold plate 5 can drive the molds 6 to move cyclically on the frame 4. How the molds 6 move cyclically on the frame 4 is a prior art and will not be described in detail here.

[0055] The mold 6 is adapted to the convex grinding wheel, and the mold 6 includes a mold ring 601, a mold bottom 603 with a core rod 602 in the center, and a mold cover 604. Figure 3 A mold bottom 603 is detachably provided at the bottom of the mold ring 601, and the middle of the upper surface of the mold bottom 603 is circular and concave downwards, and a mold cover 604 is detachably provided at the top of the mold ring 601, and the middle of the lower surface of the mold cover 604 is circular and convex downwards, so that the mold cover 604 and the mold bottom 603 can be pressed to form a convex grinding wheel.

[0056] In order to realize the production of convex grinding wheels, the number of production stations on the frame 4 is forty-eight, and the double-hole mold plate 5 drives the mold 6 to slide cyclically between the forty-eight production stations. Each double-hole mold plate 5 drives two sets of molds 6 to pass through the forty-eight production stations in turn, and two convex grinding wheels can be produced.

[0057] In this embodiment, the forty-eight production stations are, in order, an empty station 17, a bottom pressing station 18, a net placing station 19, an empty station 2 10, a spare net placing station 11, a baking net station 12, a net pressing station 1 13, a feeding station 1 14, a material spreading station 1 15, a fine spreading station 1 16, a net placing station 2 17, a longitudinal pushing station 1 18, an empty station 3 19, a horizontal pushing station 1 20, a spare net placing station 2 21, a baking net station 2 22, a net pressing station 2 23, a feeding station 2 24, a material spreading station 2 25, a fine spreading station 2 26, a net placing station 3 27, an empty station 4 28, a spare net placing station Position three 29, baking net station three 30, pre-pressing station 31, empty station five 32, mold cover placing station 33, mold cover pressing station 34, empty station six 35, empty station seven 36, empty station eight 37, flipping station one 38, mold bottom moving station 39, empty station nine 40, trademark station 41, vertical push station two 42, empty station ten 43, horizontal push station two 44, empty station eleven 45, core ring station 46, mold bottom placing station 47, bottom pressing station two 48, empty station twelve 49, pressing station 50, empty station thirteen 51, flipping station two 52, mold cover moving station 53 and mold unloading station 54, such as Figure 4 and Figure 5The above empty station means that there is no production equipment arranged at the current position, and the double-hole die plate 5 drives the die 6 to flow through the empty station.

[0058] There are two die bottom devices 55 in both the bottom pressing station 1 8 and the bottom pressing station 2 48, that is, there are two die bottom devices 55 in the bottom pressing station 1 8, and there are also two die bottom devices 55 in the bottom pressing station 2 48. The two die bottom devices 55 correspond to two sets of molds 6. The function of the die bottom device 55 is to press the die bottom 603 downward and cause the die bottom 603 to reset.

[0059] like Figure 6 As shown, the die bottom pressing device 55 includes a gate-shaped support frame 551, a bottom pressing cylinder 552 arranged above the support frame 551, and a bottom pressing plate 553 arranged below the support frame 551. The bottom pressing cylinder 552 is inverted, and the piston rod of the bottom pressing cylinder 552 extends downward to connect the bottom pressing plate 553. The bottom pressing plate 553 is a circular plate, and a plurality of adjusting screws are arranged on the bottom pressing plate 553 in an annular direction. After the double-hole die plate 5 drives the die 6 to move to the current station, the bottom pressing cylinder 552 drives the adjusting screw to move downward, thereby resetting the lower die bottom 603. The adjusting screw is not shown in the figure.

[0060] The net placing station 1 9 and the spare net placing station 3 29 are arranged on both sides of the width direction of the frame 4, the spare net placing station 1 11 and the net placing station 3 27 are arranged on both sides of the width direction of the frame 4, and the net placing station 2 17 and the spare net placing station 2 21 are arranged on both sides of the width direction of the frame 4.

[0061] The net-releasing station 1 9, the net-releasing station 2 17 and the net-releasing station 3 27 are respectively used to put glass fiber mesh into the mold 6 three times to meet the production requirements of the convex grinding wheel. The spare net-releasing station 1 11, the spare net-releasing station 21 and the spare net-releasing station 3 29 are spare stations and can also meet the net-releasing requirements. Therefore, the structures of the net-releasing station and the spare net-releasing station are the same.

[0062] The net-laying station 1 9, the standby net-laying station 1 11, the net-laying station 2 17, the standby net-laying station 2 21, the net-laying station 3 27 and the standby net-laying station 3 29 are all provided with a net-laying delivery device 56. The net-laying delivery device 56 comprises a fixed plate 561, a rotating plate 562, a rotating cylinder 563, a net pile 564, a top net cylinder 565, a horizontal moving mechanism 566 and a separation and picking mechanism 567, as shown in FIG. Figure 7 shown.

[0063] The fixed plate 561 is connected to the rotating plate 562 through a rotating cylinder 563, which can drive the rotating plate 562 to rotate horizontally. Four mesh stacks 564 are arranged at the corners of the rotating plate 562. Each mesh stack 564 is formed by stacking a number of glass fiber mesh sheets. The four mesh stacks 564 are arranged in pairs for use by two sets of molds 6. There are two mesh-lifting cylinders 565 below the fixed plate 561, which can lift the mesh stacks 564 upward. The horizontal moving mechanism 566 is arranged on the frame 4. The horizontal moving mechanism 566 is based on the linear module operation principle and can drive the separation and picking mechanism 567 to slide inside and outside the frame 4. The separation and picking mechanism 567 can pick up the mesh and deliver the mesh to the two sets of molds 6.

[0064] The operating principle of the mesh delivery device 56 in the mesh placing station can refer to the authorization publication number CN210360969U applied by the same applicant, a small-diameter glass fiber mesh sorting and conveying device, or refer to the authorization publication number CN217621770U applied by the same applicant, a mesh delivery device in a multi-cavity slicing rotary scraper automatic forming machine unit, which will not be repeated here.

[0065] The first grilling station 12, the second grilling station 22 and the third grilling station 30 are all provided with a grilling device 57, the purpose of which is to soften the glass fiber mesh. Figure 8 As shown, the grill device 57 includes a rectangular grill cover and a heating tube arranged in the grill cover. The lower end of the grill cover is open, so that the heat emitted by the grill device 57 can be directed toward the mold 6, so that the mesh in the mold 6 is softened so that it can match the convex grinding wheel shape.

[0066] There are two pressing devices 58 in the pressing station 1 13 and the pressing station 2 23. The two pressing devices 58 in each pressing station correspond to two sets of molds 6. The pressing devices 58 are used to make the softened glass fiber mesh better fit the contour of the mold bottom 603. Fig. 9 As shown, the mesh pressing device 58 includes a mesh pressing frame 581, a mesh pressing cylinder 582 arranged above the mesh pressing frame 581, and a mesh pressing plate 583 arranged below the mesh pressing frame 581. The mesh pressing cylinder 582 is inverted, and the piston rod of the mesh pressing cylinder 582 extends downward to connect the mesh pressing plate 583. The mesh pressing plate 583 has a hole in the middle to make way for the core rod 602. The lower surface of the mesh pressing plate 583 is circularly convex downward and matched with the upper surface of the mold bottom 603, so that the mesh can be pressed to make its middle concave, which is matched with the shape of the convex grinding wheel.

[0067] The feeding station 1 14 and the feeding station 2 24 are arranged on both sides of the width direction of the frame 4, and the feeding station 1 14 and the feeding station 2 24 are both provided with molding material feeding devices 59, and the number of molding material feeding devices 59 in the feeding station 1 14 and the feeding station 2 24 is two, respectively corresponding to two sets of molds 6. The operating principle of the molding material feeding device 59 can refer to the authorization announcement number CN212942835U and the resin abrasive fixed weight feeding device applied by the same applicant, which will not be repeated here.

[0068] The material spreading station 15, the fine spreading station 16, the material spreading station 25 and the fine spreading station 26 are all provided with a scraper device 60 and a mold rotating device 61 arranged above and below the mold 6. The scraper device 60 and the mold rotating device 61 work together. The mold rotating device 61 can drive the mold bottom 603 to rotate. When the mold bottom 603 rotates, the scraper device 60 scrapes the grinding wheel molding material flat. Since it is a convex grinding wheel here, the lower surface profile of the scraper used in the scraper device 60 is adapted to the upper surface profile of the mold bottom 603. The length of the scraper is the radius of the mold bottom 603. Fig.11 As shown, the scraper is not shown in the figure.

[0069] The operating principle of the scraper device 60 and the mold rotating device 61 can refer to the authorization announcement number CN202640186U, multi-station grinding wheel forming machine automatic scraper device 60 applied by the same applicant, or refer to the application number 2024201834368, double press 22-station large slice automatic forming machine, and the scraper device and mold rotating device in the material spreading station 15 and the material spreading station 25 are for rough spreading of the grinding wheel forming material, while the fine spreading station 16 and the fine spreading station 26 are for fine spreading of the grinding wheel forming material, so the equipment in the fine spreading station has higher control accuracy than the equipment in the material spreading station.

[0070] The longitudinal push station 18, the transverse push station 120, the longitudinal push station 242 and the transverse push station 244 are sequentially arranged at the four corners of the frame 4. The longitudinal push station 18, the transverse push station 120, the longitudinal push station 242 and the transverse push station 244 are all provided with a push electric cylinder 62, and a push plate is connected to the driving rod of the push electric cylinder 62, and the push plate pushes the double-hole mold car plate 5 to slide on the frame 4. The working principle of the push electric cylinder 62 pushing the double-hole mold car plate 5 to slide back and forth on the frame 4 can refer to the authorization announcement number CN210682195U applied by the same applicant, a linear intermittent displacement mechanism of a mold 6, which will not be repeated here.

[0071] A pre-pressing press 63 is provided in the pre-pressing station 31, and the pre-pressing press 63 is used to pre-press the molding material. The pre-pressing press 63 includes an upper beam plate 631, a lower beam plate 632, a column 633, a hydraulic cylinder 634, a pressure head seat 635, and a pre-pressing pressure head 636. The upper beam plate 631 and the lower beam plate 632 are arranged in an interval up and down, and four columns 633 are provided between the upper beam plate 631 and the lower beam plate 632 for connection. Two hydraulic cylinders 634 are provided on the left and right of the upper beam plate 631, and the piston rod of each hydraulic cylinder 634 extends downward to connect the pressure head seat 635. A pre-pressing pressure head 636 is provided below the pressure head seat 635, and a hole is opened in the middle of the pre-pressing pressure head 636, and the hole is opened to make way for the core rod 602.

[0072] In order to provide guidance for the lifting and lowering of the pre-pressing head 636, a guide connecting plate 637 is also provided on the head seat 635. The guide connecting plate 637 is arranged horizontally, and an anti-rotation rod 638 is vertically provided at one end of the guide connecting plate 637. The anti-rotation rod 638 extends upward through the upper beam plate 631 and is slidably connected to the upper beam plate 631. Fig.12 As shown. A mold gusset plate 64 is also arranged between the two corresponding columns 633. There are two mold gusset plates 64, and the mold gusset plates 64 have a certain length. When the double-hole mold plate 5 drives the mold 6 to move through the pre-pressing press 63, the double-hole mold plate 5 and the mold ring 601 are both located below the mold gusset plate 64 and are restricted by the mold gusset plate 64, which can prevent the mold ring 601 from moving upward when the pre-pressing press 63 moves up and away from the mold 6 after pressing.

[0073] The mold cover placing station 33 and the mold cover moving station 53 are arranged on both sides of the width direction of the frame 4, and a mold cover transfer device 65 is arranged between the mold cover placing station 33 and the mold cover moving station 53. The mold cover transfer device 65 can realize the transportation and transfer of the mold cover 604 between the mold cover placing station 33 and the mold cover moving station 53. The mold cover transfer device 65 includes two support rods 651 arranged on both sides of the width direction of the frame 4, a transfer linear module 652 arranged between the two support rods 651, and a transfer mechanism controlled by the transfer linear module 652, such as Fig.13 shown.

[0074] Two rotating wax coating plates 653 are also arranged on the frame 4 below the transfer linear module 652. The rotating wax coating plates 653 include a motor and a wax coating plate controlled by the motor. The transfer mechanism includes a horizontal slide 654 and a pick-up mechanism 655 arranged on both sides of the horizontal slide 654. The rotating wax coating plates 653 and the pick-up mechanism 655 correspond to each other. The pick-up mechanisms 655 on both sides correspond to the two sets of molds 6 on the double-hole mold car plate 5. The pick-up mechanism 655 on each side includes an inverted pick-up cylinder 656 and an electromagnet 657 controlled by the pick-up cylinder 656. The electromagnet 657 can absorb the mold cover 604.

[0075] The operating principle of the mold cover transfer device 65 is as follows: the transfer linear module 652 can drive the transfer mechanism to reciprocate between the mold cover placing station 33 and the mold cover moving station 53. When the transfer mechanism moves to the top of the mold cover moving station 53, the electromagnet 657 sucks the mold cover 604 to separate it from the mold 6, and then the transfer mechanism moves to the top of the mold cover placing station 33, and then the mold cover 604 is moved down and placed into the mold 6, so as to realize the handling and transfer of the mold cover 604. During this period, the mold cover 604 contacts the rotating wax coating plate 653 when moving, so as to realize the cleaning of the mold cover 604.

[0076] Two die cover devices 604 are provided in the die cover station 34. The die cover devices 604 have the same structure and the same operating principle as the die bottom device 55, which will not be described in detail here. In the die cover placing station 33, the die cover 604 is placed into the mold 6 by the die cover transfer device 65, and then the die cover 604 is pressed down into place by the die cover device 604.

[0077] The mold bottom placing station 47 and the mold bottom moving station 39 are correspondingly arranged on both sides of the width direction of the frame 4. A mold bottom 603 transfer device is arranged between the mold bottom placing station 47 and the mold bottom moving station 39. The mold bottom 603 transfer device and the mold cover transfer device 65 have the same structure and the same operating principle, which will not be repeated here.

[0078] In the mold bottom moving station 39, the mold bottom 603 needs to be separated from the mold 6, and in the mold cover moving station 53, the mold cover 604 needs to be separated from the mold 6. In order to ensure that when the mold bottom 603 or the mold cover 604 is separated from the mold 6, other parts of the mold 6 are not affected, a mold pressing block 66 is provided on the frame 4 corresponding to the mold bottom moving station 39 and the mold cover moving station 53. The number of mold pressing blocks 66 is four, and the four mold pressing blocks 66 are grouped in two to press a mold ring 601. The upper end of the mold pressing block 66 is horizontally bent and arranged on the mold ring 601 to prevent the mold ring 601 from moving. Fig.14 shown.

[0079] The flipping station 1 38 and the flipping station 2 52 are both provided with a double-mold flipping device 67. The double-mold flipping device 67 can drive the double-hole mold plate 5 to rotate together with the mold 6. The flipping station 1 38 can flip the mold 6 so that the mold bottom 603 is flipped to the top, and the flipping station 2 52 can flip the mold bottom 603 again to the bottom to reset it. The double-mold flipping device 67 includes a mounting plate 671, a vertical plate 672, a flipping motor 673, a cylinder 674, an inner frame 675, and a top cover 676. Fig.15 and Fig.16 shown.

[0080] A flip motor 673 is arranged below the mounting plate 671, and two vertical plates 672 are arranged above the mounting plate 671 at intervals. A cylinder 674 is rotatably arranged between the two vertical plates 672, and the cylinder 674 is a toroidal body with openings at both ends. A top cover 676 is also arranged between the two vertical plates 672, and the top cover 676 is arranged outside the cylinder 674. The flip motor 673 and the cylinder 674 are belt-driven, that is, belt-driven, so that the flip motor 673 can drive the cylinder 674 to rotate, and an inner frame 675 is arranged inside the cylinder 674, and the cylinder 674 and the inner frame 675 rotate together. The inner frame 675 is a rectangular shell with openings at both ends and a hollow interior. The cross section of the inner frame 675 is adapted to the cross section of the double-hole mold plate 5, that is, the internal space of the inner frame 675 can just accommodate the double-hole mold plate 5 and the two sets of molds 6 it carries, and the double-hole mold plate 5 can drive the mold 6 to pass through the inner frame 675.

[0081] The trademark station 41 is provided with a trademark delivery device 68, which can place the trademark paper on the convex surface of the convex grinding wheel. The structure and operation principle of the trademark delivery device 68 are the same as those of the mesh delivery device 56, except that the mesh stack 564 is replaced by a trademark paper stack, such as Fig.17 The operating principle of the trademark delivery device 68 can be referred to the authorization announcement number CN110371418A, a trademark paper sorting and conveying device, applied by the same applicant, and will not be described in detail here.

[0082] The core ring station 46 is provided with a core ring delivery device 69, which can set the core ring on the core rod 602. Two vibration plates are arranged in the core ring delivery device 69, and a plurality of core rings are delivered to the vibration plates. The vibration plates can arrange the core rings neatly and transport them to the vibration plate outlet, and the picking unit picks up two core rings at the same time, and then moves and delivers them to the core rods 602 in the two sets of molds 6, as shown in FIG. Fig.18 The operation principle of the core ring delivery device 69 can be referred to the authorization announcement number CN212768292U, a resin grinding wheel hole ring delivery device, applied by the same applicant, and will not be repeated here.

[0083] A final pressing machine 70 is arranged in the pressing station 50. The final pressing machine 70 is a three-beam four-column hydraulic press. An upper floating pressure head 71 is arranged on the upper part of the final pressing machine 70 for lifting. That is, the final pressing machine 70 can drive the upper floating pressure head 71 to move up and down. The operation principle of the upper floating pressure head 71 can refer to the authorization announcement number CN217293577U and the resin grinding wheel molding pressure balance floating cylinder device applied by the same applicant, which will not be repeated here. A lower pressure head 72 is fixedly arranged at the lower part of the final pressing machine 70. The upper floating pressure head 71 and the lower pressure head 72 are arranged in a corresponding manner at upper and lower intervals. The upper floating pressure head 71 cooperates with the lower pressure head 72 to press and form a convex grinding wheel, such as Fig.19 shown.

[0084] The unloading station 54 is provided with an unloading device 73 and a flat belt conveyor 74. The unloading device 73 includes two vertical support rods 731 arranged on both sides of the frame 4 in the width direction, an unloading linear module 732 arranged between the two vertical support rods 731, and an unloading mechanism controlled by the unloading linear module 732. Fig. 20 The demoulding mechanism includes a demoulding slide 733 and a suction cup assembly 734 and a wax coating assembly 735 arranged on both sides of the demoulding slide 733. The demoulding slide can drive the suction cup assembly 734 and the wax coating assembly 735 to move together. The suction cup assembly 734 includes a suction cup cylinder and two pneumatic suction cups controlled by the suction cup cylinder. The pneumatic suction cup moves up and down. The wax coating assembly 735 includes a wax coating cylinder and two rotating wax coating discs 2 controlled by the wax coating cylinder. The rotating wax coating discs 2 also move up and down.

[0085] When the utility model is used to produce convex grinding wheels: a mold 6 matching the convex grinding wheel is installed on the double-hole mold plate 5, and under the intermittent push of four push electric cylinders 62, the double-hole mold plate 5 carries the mold 6 and reciprocates between forty-eight production stations to continuously produce the convex grinding wheel.

[0086] The process of the mold 6 passing through the forty-eight production stations is as follows: step 1, the mold 6 flows to the left through the empty station 1 7, step 2, the mold 6 enters the bottom pressing station 1 8 to the left, and the bottom pressing plate 553 device presses the mold bottom 603 downward to reset it, step 3, the mold 6 enters the net placing station 1 9 to the left, and the net delivering device 56 picks up the first layer of glass fiber mesh and places it in the mold 6, step 4, the mold 6 flows to the left through the empty station 2 10, step 5, the mold 6 flows to the left through the spare net placing station 1 11, step 6, the mold 6 enters the baking net station 12 to the left, and the baking net device 57 heats and softens the first layer of glass fiber mesh, Step 7, the mold 6 moves to the left into the mesh pressing station 13, and the mesh pressing device 58 presses down the softened first layer of glass fiber mesh to make its shape meet the production requirements, step 8, the mold 6 moves to the left into the feeding station 14, and the molding material feeding device 59 feeds the grinding wheel molding material into the mold 6 in a quantitative manner at one time, step 9, the mold 6 moves to the left into the material spreading station 15, and the mold rotating device 61 drives the mold bottom 603 to rotate. At the same time, the scraper of the scraper device 60 extends into the mold 6 to scrape the material once, step 10, the mold 6 moves to the left into the fine spreading station 16, which is a more refined material spreading and scraping based on step 9.

[0087] Step 11, the mold 6 moves to the left into the net-laying station 2 17, the net-laying delivery device 56 picks up the second layer of glass fiber mesh and places it in the mold 6, step 12, the mold 6 moves to the left into the longitudinal push station 1 18, and is pushed upward by the push cylinder 62, step 13, the mold 6 flows upward through the empty station 3 19, step 14, the mold 6 moves upward into the horizontal push station 1 20, and is pushed right by the push cylinder 62, step 15, the mold 6 flows right through the spare net-laying station 2 21, step 16, the mold 6 moves to the right into the baking net station 2 22, and the baking net device 57 heats and softens the second layer of glass fiber mesh, step 17, the mold The mold 6 moves to the right into the second screen pressing station 23, and the screen pressing device 58 presses down the softened second layer of glass fiber mesh to make its shape meet the production requirements. Step 18, the mold 6 moves to the right into the second feeding station 24, and the molding material feeding device 59 quantitatively feeds the grinding wheel molding material into the mold 6 for a second time. Step 19, the mold 6 moves to the right into the second material spreading station 25, and the mold bottom 603 is driven to rotate by the mold rotating device 61. At the same time, the scraper of the scraping device 60 extends into the mold 6 for a second scraping. Step 20, the mold 6 moves to the right into the second fine spreading station 26, which is a more refined secondary material spreading and scraping based on step 19.

[0088] Step 21, the mold 6 moves to the right into the net-laying station 3 27, the net-laying device 56 picks up the third layer of glass fiber mesh and places it in the mold 6, step 22, the mold 6 flows to the right through the empty station 4 28, step 23, the mold 6 flows to the right through the spare net-laying station 3 29, step 24, the mold 6 moves to the right into the baking net station 3 30, the baking net device 57 heats and softens the third layer of glass fiber mesh, step 25, the mold 6 moves to the right into the pre-pressing station 31, the pre-pressing press 63 presses the grinding wheel The molding material and the glass fiber mesh are pressed, step 26, the mold 6 flows to the right through the empty station five 32, step 27, the mold 6 enters the mold cover placing station 33 to the right, and the mold cover 604 is placed in the mold 6 by the mold cover transfer device 65, step 28, the mold 6 enters the mold cover pressing station 34 to the right, and the mold cover 604 is pressed down by the mold cover pressing device to make it in the correct position in the mold 6, step 29, the mold 6 flows to the right through the empty station six 35, step 30, the mold 6 flows to the right through the empty station seven 36.

[0089] Step 31, the mold 6 flows to the right through the empty station eight 37, step 32, the mold 6 enters the flip station one 38 to the right, at this time, the double-hole mold car plate 5 carries the mold 6 and is placed in the inner frame 675, the flip motor 673 is started to drive the inner frame 675 to rotate 180° forward, and the mold 6 also rotates 180°. At this time, the mold bottom 603 is at the top and the mold cover 604 is at the bottom, step 33, the mold 6 enters the mold bottom moving station 39 to the right, and the mold bottom 603 is removed by the mold bottom 603 transfer device, so that the mold bottom 603 is separated from the mold 6, step 34, the mold 6 flows to the right through the empty station nine 40, step 35, the mold 6 is Enter the trademark station 41, the trademark delivery device 68 picks up the trademark paper and delivers it to the raised surface of the grinding wheel, step 36, the mold 6 enters the longitudinal push station 2 42 to the right, the mold 6 is pushed downward by the push cylinder 62, step 37, the mold 6 flows downward through the empty station 10 43, step 38, the mold 6 enters the horizontal push station 2 44 downward, the mold 6 is pushed to the left by the push cylinder 62, step 39, the mold 6 flows to the left through the empty station 11 45, step 40, the mold 6 enters the core ring station 46 to the left, the core ring delivery device 69 picks up the core ring and delivers it into the mold 6 so that it is sleeved on the core rod 602.

[0090] Step 41, the mold 6 moves to the left into the mold bottom placing station 47, and the mold bottom 603 transfer device moves the mold bottom 603 removed in step 33 onto the mold 6, step 42, the mold 6 moves to the left into the bottom pressing station 2 48, and the mold bottom pressing device 55 presses the mold bottom 603 downward to reset it, step 43, the mold 6 flows to the left through the empty station 12 49, step 44, the mold 6 moves to the left into the pressing station 50, and the upper floating pressure head 71 of the final pressing machine 70 cooperates with the lower pressure head 72 to press the grinding wheel to form it into a convex grinding wheel, step 45, the mold 6 moves to the left through the empty station 13 51, step 46, the mold 6 moves to the left into the flipping station 2 52, and the flipping motor 673 starts to drive the inner frame 675 to rotate 180° in the opposite direction, so that the mold bottom 603 is at the bottom and the mold cover 60 4 is at the top, step 47, the mold 6 moves to the left into the mold cover moving station 53, the mold cover transfer device 65 removes the mold cover 604, so that the mold cover 604 is separated from the mold 6, and the mold cover 604 is transferred to the mold cover placing station 33. During the transfer process, the mold cover 604 and the rotating wax coating plate 653 are cleaned, step 48, the mold 6 moves to the left into the mold unloading station 54, the suction cup assembly 734 in the mold unloading device 73 first sucks the formed convex grinding wheel and moves it out of the mold 6, and then the mold unloading linear module 732 moves the convex grinding wheel to the flat belt conveyor 74, and the wax coating assembly 735 follows the action, and the wax coating assembly 735 cleans the inside of the mold 6 from which the grinding wheel has been taken out, so as to prepare for the next operation, and the production of two convex grinding wheels is completed.

[0091] The utility model can produce not only convex grinding wheels but also plane grinding wheels. In this case, it is only necessary to replace the mold 6 matched with the plane grinding wheel and stop the related equipment. Specifically, it is necessary to stop the equipment in the net placing station 1 9, the spare net placing station 1 11, the baking net station 12, the net pressing station 1 13, the net placing station 3 27, the spare net placing station 3 29, the baking net station 30, the pre-pressing station 31, the mold cover placing station 33, the mold cover moving station 53, the flipping station 1 38, the mold bottom moving station 39, the mold bottom placing station 47 and the flipping station 2 52.

[0092] After mold 6 is replaced and related equipment is stopped, when manufacturing the plane grinding wheel, mold 6 sequentially performs bottom pressing, primary feeding, primary spreading, primary fine spreading, net placing, net baking, net pressing, secondary feeding, secondary spreading, secondary fine spreading, trademark placement, core ring placement, pressing and demolding, thereby completing a production and manufacturing process of the plane grinding wheel.

[0093] The embodiments described above are only preferred embodiments of the present invention and are not intended to limit the scope of implementation of the present invention. Therefore, any equivalent changes or modifications made based on the structures, features and principles described in the patent scope of the present invention should be included in the patent application scope of the present invention.

Claims

1. Double cavity 48-station quick-change cutting blade forming machine, characterized in that: It comprises a frame (4), a plurality of double-hole mold plates (5) and molds (6), and a production station arranged on the frame (4), wherein the plurality of double-hole mold plates (5) are arranged end to end in a "U" shape, and the double-hole mold plates (5) are cyclically slidable on the frame (4) in a "U" shape, and each double-hole mold plate (5) is detachably provided with two sets of the molds (6); The number of production stations is forty-eight. The double-hole die plate (5) drives the die (6) to slide cyclically between the forty-eight production stations. The forty-eight production stations are, in order, an empty station one (7), a bottom pressing station one (8), a net placing station one (9), an empty station two (10), a spare net placing station one (11), a net baking station one (12), a net pressing station one (13), a material feeding station one (14), a material spreading station one (15), a fine spreading station one (16), a net placing station two (17), a longitudinal pushing station one (18), an empty station three (19), a horizontal pushing station one (20), a spare net placing station two (21), a net baking station two (22), a net pressing station two (23), a material feeding station two (24), a material spreading station two (25), a fine spreading station two (26), a net placing station three (27 ), empty station four (28), spare net placing station three (29), baking net station three (30), pre-pressing station (31), empty station five (32), mold cover placing station (33), mold cover pressing station (34), empty station six (35), empty station seven (36), empty station eight (37), flipping station one (38), mold bottom moving station (39), empty station nine (40), trademark station (41), vertical pushing station two (42), empty station ten (43), horizontal pushing station two (44), empty station eleven (45), core ring station (46), mold bottom placing station (47), bottom pressing station two (48), empty station twelve (49), pressing station (50), empty station thirteen (51), flipping station two (52), mold cover moving station (53) and mold unloading station (54).

2. The dual-cavity 48-station quick-change cutting blade forming machine according to claim 1 is characterized in that: The mold (6) comprises a mold ring (601), a mold bottom (603) with a core rod (602) in the center, and a mold cover (604); the mold bottom (603) is detachably provided at the bottom of the mold ring (601); the middle portion of the upper surface of the mold bottom (603) is circular and concave downward; the mold cover (604) is detachably provided at the top of the mold ring (601); the middle portion of the lower surface of the mold cover (604) is circular and convex downward; the mold cover (604) cooperates with the mold bottom (603) to press and form a convex grinding wheel.

3. The dual-cavity 48-station quick-change cutting blade forming machine according to claim 2 is characterized in that: The bottom pressing station 1 (8) and the bottom pressing station 2 (48) are both provided with two bottom pressing devices (55), the bottom pressing device (55) comprising a gate-shaped support frame (551), a bottom pressing cylinder (552) arranged above the support frame (551), and a bottom pressing plate (553) arranged below the support frame (551), the bottom pressing cylinder (552) is inverted, the piston rod of the bottom pressing cylinder (552) extends downward to connect with the bottom pressing plate (553), the bottom pressing plate (553) is a circular plate, and a plurality of adjusting screws are arranged circumferentially on the bottom pressing plate (553); Two die cover (604) devices are arranged in the die cover station (34), and the die cover (604) devices and the die bottom device (55) have the same structure.

4. The dual-cavity 48-station quick-change cutting blade forming machine according to claim 2 is characterized in that: The net-releasing station one (9) and the spare net-releasing station three (29) are arranged on both sides of the width direction of the frame (4) respectively, the spare net-releasing station one (11) and the net-releasing station three (27) are arranged on both sides of the width direction of the frame (4) respectively, and the net-releasing station two (17) and the spare net-releasing station two (21) are arranged on both sides of the width direction of the frame (4) respectively; The net-releasing station one (9), the standby net-releasing station one (11), the net-releasing station two (17), the standby net-releasing station two (21), the net-releasing station three (27) and the standby net-releasing station three (29) are all provided with a net-sheet delivery device (56); The grilling net station one (12), the grilling net station two (22) and the grilling net station three (30) are each provided with a grilling net device (57), the grilling net device (57) comprising a rectangular grilling net cover and a heating pipe arranged in the grilling net cover, the grilling net cover having an open lower end.

5. The dual-cavity 48-station quick-change cutting blade forming machine according to claim 2, characterized in that: The mesh pressing station 1 (13) and the mesh pressing station 2 (23) are both provided with two mesh pressing devices (58), the mesh pressing devices (58) comprising a mesh pressing frame (581), a mesh pressing cylinder (582) arranged above the mesh pressing frame (581), and a mesh pressing plate (583) arranged below the mesh pressing frame (581), the mesh pressing cylinder (582) being inverted, the piston rod of the mesh pressing cylinder (582) extending downward to connect with the mesh pressing plate (583), the mesh pressing plate (583) having a hole in the middle, the lower surface of the mesh pressing plate (583) being rounded and protruding downward and matching with the upper surface of the mold bottom (603); The feeding station one (14) and the feeding station two (24) are arranged correspondingly on both sides of the width direction of the frame (4), and both the feeding station one (14) and the feeding station two (24) are provided with molding material feeding devices (59), and the number of the molding material feeding devices (59) in the feeding station one (14) and the feeding station two (24) is two.

6. The dual-cavity 48-station quick-change cutting blade forming machine according to claim 2, characterized in that: The material spreading station 1 (15), the fine spreading station 1 (16), the material spreading station 2 (25) and the fine spreading station 2 (26) are all provided with a scraping device (60) and a mold rotating device (61) arranged above and below the mold (6); The longitudinal pushing station 1 (18), the transverse pushing station 1 (20), the longitudinal pushing station 2 (42) and the transverse pushing station 2 (44) are sequentially arranged at the four corners of the frame (4); the longitudinal pushing station 1 (18), the transverse pushing station 1 (20), the longitudinal pushing station 2 (42) and the transverse pushing station 2 (44) are each provided with a pushing electric cylinder (62); a pushing plate is connected to a driving rod of the pushing electric cylinder (62); the pushing plate pushes the double-hole die plate (5) to slide on the frame (4).

7. The dual-cavity 48-station quick-change cutting blade forming machine according to claim 2, characterized in that: A pre-pressing press (63) is arranged in the pre-pressing station (31), and the pre-pressing press (63) comprises an upper beam plate (631), a lower beam plate (632), a column (633), a hydraulic cylinder (634), a pressure head seat (635), and a pre-pressing pressure head (636). The upper beam plate (631) and the lower beam plate (632) are arranged in an interval up and down, and four columns (633) are arranged between the upper beam plate (631) and the lower beam plate (632) for connection. Two hydraulic cylinders (634) are arranged on the left and right sides of the upper beam plate (631), and the piston rod of each hydraulic cylinder (634) extends downward to connect the pressure head seat (635). The pre-pressing pressure head (636) is arranged below the pressure head seat (635), and a hole is opened in the middle of the pre-pressing pressure head (636); A guide connecting plate (637) is also provided on the pressure head seat (635). The guide connecting plate (637) is arranged horizontally. An anti-rotation rod (638) is vertically provided at one end of the guide connecting plate (637). The anti-rotation rod (638) passes through the upper beam plate (631) and is slidably connected to the upper beam plate (631). A mold buckle plate (64) is also provided between the two corresponding columns (633); A final pressing machine (70) is arranged in the pressing station (50), and the final pressing machine (70) is a three-beam four-column hydraulic press. An upper floating pressing head (71) is arranged at the upper part of the final pressing machine (70) for lifting, and a lower pressing head (72) is fixedly arranged at the lower part of the final pressing machine (70). The upper floating pressing head (71) and the lower pressing head (72) are arranged in a corresponding manner at upper and lower intervals. The trademark workstation (41) is provided with a trademark placement device (68), and the core ring workstation (46) is provided with a core ring placement device (69).

8. The dual-cavity 48-station quick-change cutting blade forming machine according to claim 2, characterized in that: The mold cover placing station (33) and the mold cover moving station (53) are arranged on both sides of the frame (4) in the width direction, and a mold cover transfer device (65) is arranged between the mold cover placing station (33) and the mold cover moving station (53). The mold cover transfer device (65) comprises two support rods (651) arranged on both sides of the frame (4) in the width direction, a transfer linear module (652) arranged between the two support rods (651), and a transfer mechanism controlled by the transfer linear module (652); Two rotating wax coating discs (653) are also arranged on the frame (4) below the transfer linear module (652), and the transfer mechanism includes a horizontal slide (654) and a picking mechanism (655) arranged on both sides of the horizontal slide (654). The rotating wax coating disc (653) and the picking mechanism (655) correspond to each other one by one, and the picking mechanisms (655) on both sides correspond to the two sets of molds (6) on the double-hole mold car plate (5), and the picking mechanism (655) on each side includes an inverted picking cylinder (656) and an electromagnet (657) controlled by the picking cylinder (656); The mold bottom placing station (47) and the mold bottom moving station (39) are arranged on both sides of the frame (4) in the width direction, and a mold bottom (603) transfer device is provided between the mold bottom placing station (47) and the mold bottom moving station (39). The mold bottom (603) transfer device is the same as the mold cover transfer device (65); A mold pressing block (66) is arranged on the frame (4) corresponding to the mold bottom moving station (39) and the mold cover moving station (53), and the upper end of the mold pressing block (66) is horizontally bent and arranged on the mold ring (601).

9. The dual-cavity 48-station quick-change cutting blade forming machine according to claim 2, characterized in that: The flipping station 1 (38) and the flipping station 2 (52) are both provided with a double-mode flipping device (67), the double-mode flipping device (67) comprising a mounting plate (671), a vertical plate (672), a flipping motor (673), a cylinder (674), an inner frame (675), and a top cover (676); The flip motor (673) is arranged below the mounting plate (671), and two vertical plates (672) are arranged above the mounting plate (671) at intervals. A cylinder (674) is rotatably arranged between the two vertical plates (672). A top cover (676) is also arranged between the two vertical plates (672), and the top cover (676) is arranged outside the cylinder (674). The flip motor (673) and the cylinder (674) are driven by belts. The inner frame (675) is arranged inside the cylinder (674), and the inner frame (675) is a rectangular shell with openings at both ends and a hollow interior. The cross section of the inner frame (675) is compatible with the cross section of the double-hole die plate (5), and the double-hole die plate (5) drives the die (6) to pass through the inner frame (675).

10. The dual-cavity 48-station quick-change cutting blade forming machine according to claim 2, characterized in that: The demoulding station (54) is provided with a demoulding device (73) and a flat belt conveyor (74), wherein the demoulding device (73) comprises two vertical support rods (731) arranged on both sides of the frame (4) in the width direction, a demoulding linear module (732) arranged between the two vertical support rods (731), and a demoulding mechanism controlled by the demoulding linear module (732); The demoulding mechanism comprises a demoulding slide plate (733) and a suction cup assembly (734) and a wax coating assembly (735) arranged on both sides of the demoulding slide plate (733); the suction cup assembly (734) comprises a suction cup cylinder and two pneumatic suction cups controlled by the suction cup cylinder; and the wax coating assembly (735) comprises a wax coating cylinder and two rotating wax coating discs controlled by the wax coating cylinder.

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