Tabletting device for nickel oxide

Abstract

The invention relates to the technical field of press machines, in particular to a nickel oxide tabletting device which is used for solving the problem that the forming effect is poor when an upper die is thin and the number of die cavities is large. The device comprises a forming mechanism and a partial pressure mechanism, wherein the forming mechanism comprises an upper die, a lower die and a first hydraulic rod for applying pressure to the upper die; the partial pressure mechanism comprises second hydraulic rods and pressure sensors, the two ends of the four second hydraulic rods are hinged to the first hydraulic rods and the four corners of the upper die correspondingly, and when the pressure value detected by the pressure sensors is lower than the pressure applying value of the first hydraulic rods, the second hydraulic rods extend, so that the pressure at the edges of the upper die and the lower die is increased; when the pressure applied to the raw materials at the edge of the device is insufficient, the four second hydraulic rods can equivalently extend by a micro distance, so that the pressure at the edge is increased. In this way, it can be ensured that raw materials in the whole mold can be subjected to uniform pressure, and therefore the compactness and compressive strength of tabletting forming are improved.

Description

Technical Field

[0001] The invention relates to the technical field of presses, in particular to a nickel oxide tablet pressing device. Background Art

[0002] As an important inorganic material, nickel oxide has a wide range of applications in electronics, ceramics, catalysts and other fields. In order to improve its physical properties and processing performance, nickel oxide powder is often required to be prepared into a green body with a certain shape and size through tableting technology. Tableting technology applies external pressure to make the distance between powder particles close, increase the contact area, and thus enhance the interaction force between particles, such as van der Waals force, thereby improving the compressive strength of the material.

[0003] However, in the traditional tableting process, since the force application point is usually concentrated in the middle of the mold, the pressure on the raw material at the edge of the mold is often less than that in the middle, which will cause the edge density of the tablet after tableting to be insufficient, affecting the overall quality and performance of the product. With the advancement of technology and process optimization, people began to explore how to improve the uniform force of the raw material during tableting to ensure that the density and compressive strength of the entire green body reach an ideal level. Summary of the invention

[0004] The invention provides a nickel oxide tablet pressing device to solve the problem that a poor molding effect is easily caused when the thickness of an upper mold is thin and the number of mold cavities is large.

[0005] In order to alleviate the above technical problems, the technical solution provided by the present invention is:

[0006] A nickel oxide tablet pressing device comprises a forming mechanism and a pressure dividing mechanism, wherein the forming mechanism comprises an upper die, a lower die and a first hydraulic rod for applying pressure to the upper die;

[0007] The pressure dividing mechanism includes a second hydraulic rod and a pressure sensor. The number of the second hydraulic rods is four. The four second hydraulic rods are arranged in a circular array on the first hydraulic rod, and the two ends of the four second hydraulic rods are respectively hinged to the first hydraulic rod and the four corners of the upper mold. The pressure sensor is arranged at the edge between the upper mold and the lower mold. When the pressure value detected by the pressure sensor is lower than the pressure value applied by the first hydraulic rod, the second hydraulic rod is extended, thereby increasing the pressure at the edge of the upper mold and the lower mold.

[0008] Furthermore, the forming mechanism also includes a workbench, the upper surface of the workbench is connected to a bracket, the first hydraulic rod is fixedly connected to the bracket, a plurality of forming holes are opened on the workbench, the upper mold and the lower mold respectively pass through two ports of the forming holes and apply pressure to the raw material, and the pressure sensor is connected to the lower surface of the workbench.

[0009] Furthermore, the molding mechanism also includes a third hydraulic rod, and the output end of the third hydraulic rod is connected to the lower mold.

[0010] Furthermore, it also includes a detection mechanism, which includes a plurality of outer cylinders in a rectangular array on the lower surface of the upper mold, an inner rod is slidably connected to the outer cylinder, a pressure head is fixedly connected to the bottom end of the inner rod, and the plurality of pressure heads correspond to the plurality of forming holes one by one, and the plurality of outer cylinders are commonly connected to a pipeline, the end of the pipeline is connected to a cylinder, a pressure-sensitive switch is arranged on the bracket, the first hydraulic rod has two extension strokes, and the first extension stroke of the first hydraulic rod makes the lower surface of the pressure head contact the raw material in the forming hole, so that the plurality of inner rods are all retracted into the outer cylinder, so that the cylinder is extended and presses the pressure-sensitive switch, so that the first hydraulic rod is extended by a second stroke and presses the raw material into a sheet.

[0011] Furthermore, the detection mechanism also includes a hydraulic oil pump, the hydraulic oil pump is connected to a first oil pipe and a second oil pipe, the second oil pipe is connected to a connecting pipe through a three-way solenoid valve, the connecting pipe is connected to a pumping pipe through an electromagnetic three-way valve, and the pumping pipe is connected to the first hydraulic rod;

[0012] The first oil pipe is connected to a first oil inlet pipe through an electromagnetic three-way valve, the electromagnetic three-way valve on the second oil pipe is connected to a second oil inlet pipe, the first oil inlet pipe and the second oil inlet pipe are respectively connected to an external hydraulic oil supply, and a third oil inlet pipe is connected between the electromagnetic three-way valve between the first oil pipe and the first oil inlet pipe and the electromagnetic three-way valve between the pumping pipe and the connecting pipe;

[0013] When the hydraulic oil pump rotates forward, the hydraulic oil is pumped into the first hydraulic rod in sequence through the first oil inlet pipe, the first oil pipe, the second oil pipe, the connecting pipe and the pumping pipe, so that the first hydraulic rod extends to the first stroke. Moreover, after the cylinder extends and presses the pressure-sensitive switch, the hydraulic oil pump reverses, and the hydraulic oil is pumped into the first hydraulic rod in sequence through the second oil inlet pipe, the second oil pipe, the first oil pipe, the third oil inlet pipe and the pumping pipe, so that the first hydraulic rod continues to extend to the second stroke.

[0014] Furthermore, it also includes a feeding mechanism, which includes a rectangular frame sliding on the bracket, and the lower surface of the rectangular frame is in contact with the upper surface of the workbench.

[0015] Furthermore, the feeding mechanism also includes a material shaking frame sliding in the rectangular frame, the sliding direction of the material shaking frame is perpendicular to the sliding direction of the rectangular frame, and a plurality of partitions are arranged in the material shaking frame, and the spacing between the plurality of partitions is greater than the diameter of the forming hole.

[0016] Furthermore, the feeding mechanism also includes a rotating shaft symmetrically connected to both sides of the rectangular frame, the end of the rotating shaft is connected to a swing plate, the swing plate is attached to the outer wall of the shaking frame, and the bracket is provided with a rolling groove that cooperates with the rotating shaft.

[0017] Furthermore, it also includes a blanking mechanism, which includes a connecting frame connected to the bottom of the lower mold, and the connecting frame is hinged to the cylinder rod end of the third hydraulic rod. The cylinder rod is shortened so that after the lower mold is pulled out of the forming hole, the connecting frame swings on the cylinder rod, so that the finished product after tableting slides off.

[0018] Furthermore, the unloading mechanism further comprises a crank and a guide plate connected to the workbench, one end of the crank is fixedly connected to the hinge shaft of the connecting frame, a slide groove is provided on the guide plate, and the other end of the crank slides in the slide groove;

[0019] The slide groove has a vertical section and an inclined section. When the crank end slides in the vertical section, the lower mold is lifted and lowered in a horizontal state, and when the crank end slides in the inclined section, the lower mold swings.

[0020] The beneficial effects of the present invention are analyzed as follows:

[0021] A nickel oxide tablet pressing device comprises a forming mechanism and a pressure dividing mechanism. The forming mechanism comprises an upper die, a lower die and a first hydraulic rod for applying pressure to the upper die; the pressure dividing mechanism comprises a second hydraulic rod and a pressure sensor. The number of the second hydraulic rods is four. The four second hydraulic rods are arranged in a circular array on the first hydraulic rod, and the two ends of the four second hydraulic rods are respectively hinged to the first hydraulic rod and the four corners of the upper die. The pressure sensor is arranged at the edge between the upper die and the lower die. When the pressure value detected by the pressure sensor is lower than the pressure value applied by the first hydraulic rod, the second hydraulic rod is extended, thereby increasing the pressure at the edge of the upper die and the lower die.

[0022] When in use, the raw material is added to the lower die, and the first hydraulic rod is controlled to extend to drive the upper die to move downward. After the upper die approaches the lower die, it squeezes the raw material to complete the tableting of the raw material. When the upper die applies pressure to the lower die, the pressure sensor arranged between the two detects the pressure change. The pressure sensor is arranged at the edges of the upper die and the lower die to detect the pressure at the edges. If the force at the edge is less than the force in the middle, the four second hydraulic rods are extended by a slight distance in an equal amount, so that the pressure of the output end of the first hydraulic rod on the middle of the upper die is reduced, while the pressure applied to the edge is increased, thereby ensuring that the raw material at the edge can be subjected to sufficient pressure to be squeezed into a sheet; through the arrangement of the above-mentioned mechanism, the raw materials in the raw materials of the multi-cavity can all be subjected to sufficient pressure to be compressed into a sheet, avoiding the situation where a single force point causes high pressure in the middle of the upper die and low pressure at the edge, resulting in low density of the tableting. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the related technologies, the drawings required for use in the specific embodiments or the related technical descriptions 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.

[0024] Figure 1 The overall structure of the present invention is shown in FIG. Figure 1 ;

[0025] Figure 2 The overall structure of the present invention is shown in FIG. Figure 2 ;

[0026] Figure 3 It is a structural schematic diagram of the working table of the present invention;

[0027] Figure 4 It is a structural schematic diagram of the cylinder of the present invention;

[0028] Figure 5 It is a schematic diagram of the flow direction structure of the hydraulic oil when the hydraulic oil pump of the present invention rotates forward;

[0029] Figure 6 It is a schematic diagram of the flow direction structure of the hydraulic oil when the hydraulic oil pump of the present invention is reversed and the pressure-sensitive switch is pressurized;

[0030] Figure 7 It is a structural schematic diagram of the crank of the present invention;

[0031] Figure 8 It is a structural schematic diagram of the lower mold in the tilted state of the present invention;

[0032] Fig. 9 It is a structural schematic diagram of the feeding mechanism of the present invention.

[0033] icon:

[0034] 100, forming mechanism; 110, workbench; 111, forming hole; 120, bracket; 130, first hydraulic rod; 140, upper die; 150, lower die; 160, third hydraulic rod; 200, pressure dividing mechanism; 210, second hydraulic rod; 220, pressure sensor; 300, detection mechanism; 310, outer cylinder; 320, inner rod; 330, pressure head; 340, pipeline; 350, cylinder; 360, pressure sensitive switch; 370, hydraulic oil pump; 380 , the first oil pipe; 381, the first oil inlet pipe; 390, the pumping pipe; 391, the second oil pipe; 392, the connecting pipe; 393, the second oil inlet pipe; 394, the third oil inlet pipe; 400, the unloading mechanism; 410, the cylinder rod; 420, the connecting frame; 430, the crank; 440, the guide plate; 450, the slide; 500, the feeding mechanism; 510, the rectangular frame; 520, the shaking frame; 530, the partition; 540, the rotating shaft; 550, the pendulum plate; 560, the rolling groove. DETAILED DESCRIPTION

[0035] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0037] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0038] Examples, such as Figure 1-Figure 9As shown, a nickel oxide tabletting device includes a forming mechanism 100 and a pressure dividing mechanism 200. The forming mechanism 100 includes an upper mold 140, a lower mold 150 and a first hydraulic rod 130 for applying pressure to the upper mold 140; the pressure dividing mechanism 200 includes a second hydraulic rod 210 and a pressure sensor 220. The number of the second hydraulic rods 210 is four, and the four second hydraulic rods 210 are arranged in a circular array on the first hydraulic rod 130, and the two ends of the four second hydraulic rods 210 are respectively hinged to the first hydraulic rod 130 and the four corners of the upper mold 140. The pressure sensor 220 is arranged at the edge between the upper mold 140 and the lower mold 150. When the pressure value detected by the pressure sensor 220 is lower than the pressure value applied by the first hydraulic rod 130, the second hydraulic rod 210 is extended, thereby increasing the pressure at the edge of the upper mold 140 and the lower mold 150.

[0039] The working mechanism of the tablet pressing device provided in this embodiment is as follows:

[0040] When in use, the raw material is added to the lower die 150, and the first hydraulic rod 130 is controlled to extend to drive the upper die 140 to move downward. After the upper die 140 approaches the lower die 150, the raw material is squeezed to complete the sheeting of the raw material. When the upper die 140 applies pressure to the lower die 150, the pressure sensor 220 arranged between the two detects the pressure change. The pressure sensor 220 is arranged at the edges of the upper die 140 and the lower die 150 to detect the pressure at the edges. If the force at the edge is less than the force in the middle, the four second hydraulic rods 210 are equally extended by a slight distance, so that the pressure of the output end of the first hydraulic rod 130 on the middle of the upper die 140 is reduced, and the pressure applied to the edge is increased, thereby ensuring that the raw material at the edge can be subjected to sufficient pressure to be squeezed into a sheet;

[0041] The output end of the first hydraulic rod 130 may be fixedly connected to the upper die 140 or may abut against the upper die 140;

[0042] By setting the above mechanism, the raw materials in the multiple mold cavities can be subjected to sufficient pressure to be compressed into sheets, avoiding the situation where a single force point causes high pressure in the middle of the upper mold 140 and low pressure at the edge, resulting in low density of the pressed sheet.

[0043] Regarding the structure of the molding mechanism 100, specifically:

[0044] The molding mechanism 100 also includes a workbench 110, the upper surface of the workbench 110 is connected to a bracket 120, a first hydraulic rod 130 is fixedly connected to the bracket 120, a plurality of molding holes 111 are opened on the workbench 110, an upper mold 140 and a lower mold 150 respectively pass through two ports of the molding holes 111 and apply pressure to the raw material, and a pressure sensor 220 is connected to the lower surface of the workbench 110.

[0045] When feeding the lower die 150, firstly control the lower die 150 to move upward so that the lower die 150 is inserted into the multiple forming holes 111, and the raw materials are added into the forming holes 111. The lower die 150 receives the raw materials, and the upper die 140 approaches the lower die 150 to press the raw materials in the forming holes 111. The pressure sensor 220 is connected to the lower surface of the workbench 110. After the lower die 150 contacts the lower surface of the workbench 110, it can apply pressure to the pressure sensor 220, and the pressure of the lower die 150 on the pressure sensor 220 is the pressure required for tableting. When the upper die 140 moves downward and applies pressure to the lower die 150, the pressure of the lower die 150 on the pressure sensor 220 is reduced after being subjected to the pressure of the upper die 140. If the pressure applied to the pressure sensor 220 is greatly different from the value of zero, it means that the pressure at the edge of the mold is low. At this time, the second hydraulic rod 210 is slightly extended, otherwise the second hydraulic rod 210 does not operate.

[0046] Regarding how the lower die 150 operates, specifically;

[0047] The molding mechanism 100 further includes a third hydraulic rod 160 , an output end of which is connected to the lower mold 150 .

[0048] The extension and retraction of the third hydraulic rod 160 can drive the lower mold 150 to rise and fall. After the tablet is formed, the third hydraulic rod 160 shortens and the first hydraulic rod 130 extends at the same time, and the extension and retraction speeds of the two are equal, so that the formed tablet is pushed out from the lower part of the forming hole 111 and retained on the lower mold 150. After the lower mold 150 is pulled out of the forming hole 111 for a distance, the first hydraulic rod 130 stops extending and shortens to its original position, and the third hydraulic rod 160 continues to shorten to the shortest state, at which time the formed tablet can be taken out from the lower mold 150.

[0049] Regarding the structure of the detection mechanism 300, specifically:

[0050] The detection mechanism 300 includes a plurality of outer cylinders 310 arranged in a rectangular array on the lower surface of the upper mold 140, an inner rod 320 is slidably connected inside the outer cylinder 310, a pressing head 330 is fixedly connected to the bottom end of the inner rod 320, and the plurality of pressing heads 330 correspond one to one with the plurality of forming holes 111, the plurality of outer cylinders 310 are commonly connected to a pipe 340, the end of the pipe 340 is connected to a cylinder 350, a pressure-sensitive switch 360 is arranged on the bracket 120, and the first hydraulic rod 130 has two extension strokes. The first extension stroke of the first hydraulic rod 130 causes the lower surface of the pressing head 330 to contact the raw material in the forming hole 111, so that the plurality of inner rods 320 are all retracted into the outer cylinder 310, so that the cylinder 350 is extended and presses the pressure-sensitive switch 360, so that the first hydraulic rod 130 extends the second stroke and presses the raw material into a sheet.

[0051] The first hydraulic rod 130 first extends the first stroke, so that the pressure head 330 first contacts the raw material in the forming hole 111. If the amount of raw material in the forming hole 111 is sufficient, when the first hydraulic rod 130 extends the first stroke length, the raw material blocks the pressure head 330, so that the inner rod 320 slides into the outer cylinder 310, so that the medium in the outer cylinder 310 is transferred to the cylinder 350, so that the cylinder 350 extends. If the raw material in each forming hole 111 is sufficient, the medium transferred to the cylinder 350 can make the cylinder 350 extend to the point where the pressure sensitive switch 360 is pressed. The length allows the first hydraulic rod 130 to continue to extend to the length of the second stroke to press the raw material in the forming hole 111. If there is insufficient or no raw material in one or more forming holes 111, the amount of medium transmitted to the cylinder 350 is insufficient, so that the cylinder 350 is insufficient to extend to the length of the contact pressure sensitive switch 360, and then the first hydraulic rod 130 is shortened, so that the upper mold 140 moves up and resets, and then the raw material is replenished into the forming hole 111, thereby avoiding the occurrence of defective products and uneven tableting pressure during the subsequent tableting operation.

[0052] The detection mechanism 300 also includes a hydraulic oil pump 370, and the hydraulic oil pump 370 is connected to a first oil pipe 380 and a second oil pipe 391, and the second oil pipe 391 is connected to a connecting pipe 392 through a three-way solenoid valve, and the connecting pipe 392 is connected to a pumping pipe 390 through an electromagnetic three-way valve, and the pumping pipe 390 is connected to the first hydraulic rod 130; the first oil pipe 380 is connected to a first oil inlet pipe 381 through an electromagnetic three-way valve, and the electromagnetic three-way valve on the second oil pipe 391 is connected to a second oil inlet pipe 393, and the first oil inlet pipe 381 and the second oil inlet pipe 393 are respectively connected to an external hydraulic oil supply, and the electromagnetic three-way valve between the first oil pipe 380 and the first oil inlet pipe 381 and the pumping pipe 390 A third oil inlet pipe 394 is connected between the electromagnetic three-way valve between the first and connecting pipes 392; when the hydraulic oil pump 370 rotates forward, the hydraulic oil is pumped into the first hydraulic rod 130 in sequence by the first oil inlet pipe 381, the first oil pipe 380, the second oil pipe 391, the connecting pipe 392 and the pumping pipe 390, so that the first hydraulic rod 130 is extended to the first stroke, and after the cylinder 350 is extended and the pressure-sensitive switch 360 is pressed, the hydraulic oil pump 370 reverses, and the hydraulic oil is pumped into the first hydraulic rod 130 in sequence by the second oil inlet pipe 393, the second oil pipe 391, the first oil pipe 380, the third oil inlet pipe 394 and the pumping pipe 390, so that the first hydraulic rod 130 continues to extend to the second stroke.

[0053] The pressure-sensitive switch 360 is used to control the opening and closing directions of all the above-mentioned electromagnetic three-way valves. The hydraulic oil pump 370 first rotates forward and then reverses. When the hydraulic oil pump 370 rotates forward, the hydraulic oil is pumped into the first hydraulic rod 130 in sequence from the first oil inlet pipe 381, the first oil pipe 380, the second oil pipe 391, the connecting pipe 392 and the pumping pipe 390, so that the first hydraulic rod 130 is extended to the first stroke. At this time, the amount of raw material in the forming hole 111 is detected, and then the hydraulic oil pump 370 is reversed. If the pressure-sensitive switch 360 is not squeezed at this time, the reversed hydraulic oil pump 370 extracts the hydraulic oil in the first hydraulic rod 130 through the first oil inlet pipe 381, the first oil pipe 380, the second oil pipe 391, the connecting pipe 392 and the pumping pipe 390, so that the first hydraulic rod 130 is shortened, so that the upper mold 140 moves upward;

[0054] After the first hydraulic rod 130 is extended to the first stroke, if the pressure-sensitive switch 360 is squeezed, the pressure-sensitive switch 360 controls the opening direction of all the electromagnetic three-way valves to change. At this time, the reversed hydraulic oil pump 370 pumps the hydraulic oil into the first hydraulic rod 130 from the second oil inlet pipe 393, the second oil pipe 391, the first oil pipe 380, the third oil inlet pipe 394 and the pumping pipe 390 in sequence, so that the first hydraulic rod 130 is extended to the second stroke, so that the upper mold 140 can pressurize the lower mold 150 to complete the sheeting of the raw material;

[0055] After the raw material is pressed into sheeting and the finished product is pushed out of the forming hole 111, the hydraulic oil pump 370 rotates forward, so that the hydraulic oil in the first hydraulic rod 130 is extracted through the second oil inlet pipe 393, the second oil pipe 391, the first oil pipe 380, the third oil inlet pipe 394 and the pumping pipe 390, so that the first hydraulic rod 130 is shortened to the shortest state, so that the upper mold 140 is reset, and the above actions are repeated to detect the amount of raw material and press the sheet.

[0056] Regarding the structure of the feeding mechanism 500, specifically:

[0057] The feeding mechanism 500 includes a rectangular frame 510 that slides on the bracket 120 , and the lower surface of the rectangular frame 510 is in contact with the upper surface of the workbench 110 .

[0058] The two sides of the rectangular frame 510 are slidably connected to the bracket 120 through an electric slider, and the raw material is added into the rectangular frame 510, and the rectangular frame 510 is controlled to slide on the surface of the workbench 110. When the rectangular frame 510 passes through the forming hole 111, the raw material is pushed into the forming hole 111 to complete the loading of the forming hole 111, and the lower surface of the rectangular frame 510 is fitted with the upper surface of the workbench 110, thereby avoiding the raw material remaining on the surface of the workbench 110 and causing uneven pressure distribution during tableting.

[0059] Among the optional methods of this embodiment, the more preferred ones are:

[0060] The feeding mechanism 500 also includes a material shaking frame 520 sliding in the rectangular frame 510 , the sliding direction of the material shaking frame 520 is perpendicular to the sliding direction of the rectangular frame 510 , a plurality of partitions 530 are arranged in the material shaking frame 520 , and the spacing between the plurality of partitions 530 is greater than the diameter of the forming hole 111 .

[0061] The setting of the partition 530 allows the raw materials to be evenly distributed in the rectangular frame 510, and when the rectangular frame 510 slides, the shaking frame 520 slides back and forth in the rectangular frame 510, further pushing the raw materials so that the raw materials can be pushed into each forming hole 111 and ensuring that the amount of raw materials added to each forming hole 111 is sufficient.

[0062] Among the optional methods of this embodiment, the more preferred ones are:

[0063] The feeding mechanism 500 also includes a rotating shaft 540 symmetrically connected to both sides of the rectangular frame 510, and the end of the rotating shaft 540 is connected to a swing plate 550, which is attached to the outer wall of the shaking frame 520, and a rolling groove 560 cooperating with the rotating shaft 540 is opened on the bracket 120.

[0064] There is static friction between the rotating shaft 540 and the rolling groove 560. When the rectangular frame 510 moves, the rotating shaft 540 rolls on the rolling groove 560. At this time, the swing plate 550 swings, and there are two swing plates 550, so that the two swing plates 550 located on both sides of the shaking material frame 520 can push the shaking material frame 520 alternately, so that the shaking material frame 520 slides back and forth in the rectangular frame 510.

[0065] Regarding the structure of the blanking mechanism 400, specifically:

[0066] The unloading mechanism 400 includes a connecting frame 420 connected to the bottom of the lower mold 150, and the connecting frame 420 is hinged to the end of the cylinder rod 410 of the third hydraulic rod 160. The cylinder rod 410 is shortened so that after the lower mold 150 is pulled out of the forming hole 111, the connecting frame 420 swings on the cylinder rod 410, so that the finished product after tableting slides off.

[0067] When the cylinder rod 410 is shortened to the shortest state, the connecting frame 420 can drive the lower mold 150 to swing, so that the lower mold 150 is tilted, and the forming pressing sheet on the lower mold 150 can slide down.

[0068] Among the optional methods of this embodiment, the more preferred ones are:

[0069] The unloading mechanism 400 also includes a crank 430 and a guide plate 440 connected to the workbench 110. One end of the crank 430 is fixedly connected to the hinge shaft of the connecting frame 420. A slide groove 450 is provided on the guide plate 440. The other end of the crank 430 slides in the slide groove 450. The slide groove 450 has a vertical section and an inclined section. When the end of the crank 430 slides in the vertical section, the lower mold 150 is lifted and lowered in a horizontal state. When the end of the crank 430 slides in the inclined section, the lower mold 150 swings.

[0070] The top end of the crank 430 is connected to the hinge shaft of the connecting frame 420, and the bottom end slides in the slide groove 450, so that when the bottom end of the crank 430 is in the vertical section of the slide groove 450, the lower mold 150 can be in a horizontal state. When the bottom end of the crank 430 slides to the bottom of the vertical section of the slide groove 450, the first hydraulic rod 130 is shortened, and then the cylinder rod 410 continues to shorten. At this time, the bottom end of the crank 430 slides in the inclined section of the slide groove 450. At this time, the lower mold 150 can be tilted, so that the formed tablets on the lower mold 150 slide down, and then the formed tablets are collected.

[0071] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A nickel oxide tabletting device, characterized in that: It comprises a molding mechanism (100) and a pressure dividing mechanism (200), wherein the molding mechanism (100) comprises an upper mold (140), a lower mold (150) and a first hydraulic rod (130) for applying pressure to the upper mold (140); The pressure dividing mechanism (200) comprises a second hydraulic rod (210) and a pressure sensor (220). The number of the second hydraulic rods (210) is four. The four second hydraulic rods (210) are arranged in a circular array on the first hydraulic rod (130). The two ends of the four second hydraulic rods (210) are respectively hinged to the first hydraulic rod (130) and the four corners of the upper mold (140). The pressure sensor (220) is arranged at the edge between the upper mold (140) and the lower mold (150). When the pressure value detected by the pressure sensor (220) is lower than the pressure value applied by the first hydraulic rod (130), the second hydraulic rod (210) is extended, thereby increasing the pressure at the edge of the upper mold (140) and the lower mold (150).

2. The nickel oxide tabletting device according to claim 1, characterized in that: The molding mechanism (100) further comprises a workbench (110), the upper surface of the workbench (110) is connected to a bracket (120), the first hydraulic rod (130) is fixedly connected to the bracket (120), a plurality of molding holes (111) are provided on the workbench (110), the upper mold (140) and the lower mold (150) respectively pass through two ports of the molding holes (111) and apply pressure to the raw material, and the pressure sensor (220) is connected to the lower surface of the workbench (110).

3. The nickel oxide tabletting device according to claim 2, characterized in that: The molding mechanism (100) further comprises a third hydraulic rod (160), wherein an output end of the third hydraulic rod (160) is connected to the lower mold (150).

4. The nickel oxide tabletting device according to claim 3, characterized in that: The invention also comprises a detection mechanism (300), wherein the detection mechanism (300) comprises a plurality of outer cylinders (310) arranged in a rectangular array on the lower surface of the upper mold (140), wherein an inner rod (320) is slidably connected inside the outer cylinder (310), and a pressure head (330) is fixedly connected to the bottom end of the inner rod (320), and the plurality of pressure heads (330) correspond to the plurality of molding holes (111) one by one, and the plurality of outer cylinders (310) are commonly connected to a pipeline (340), and the end of the pipeline (340) is connected to a cylinder (350), and the plurality of outer cylinders (310) are connected to the inner rod (320) and the bottom end of the inner rod (320) is fixedly connected to a pressure head (330), and the plurality of pressure heads (330) correspond to the plurality of molding holes (111) one by one, and the plurality of outer cylinders (310) are commonly connected to a pipeline (340), and the end of the pipeline (340) is connected to a cylinder (350), and the plurality of A pressure-sensitive switch (360) is provided on the bracket (120), and the first hydraulic rod (130) has two extension strokes. The first extension stroke of the first hydraulic rod (130) causes the lower surface of the pressing head (330) to contact the raw material in the forming hole (111), so that the multiple inner rods (320) are all retracted into the outer tube (310), so that the cylinder (350) is extended and presses the pressure-sensitive switch (360), so that the first hydraulic rod (130) extends the second stroke and presses the raw material into sheets.

5. The nickel oxide tabletting device according to claim 4, characterized in that: The detection mechanism (300) further comprises a hydraulic oil pump (370), the hydraulic oil pump (370) being connected to a first oil pipe (380) and a second oil pipe (391), the second oil pipe (391) being connected to a connecting pipe (392) via a three-way electromagnetic valve, the connecting pipe (392) being connected to a pumping pipe (390) via an electromagnetic three-way valve, and the pumping pipe (390) being connected to the first hydraulic rod (130); The first oil pipe (380) is connected to a first oil inlet pipe (381) via an electromagnetic three-way valve, the electromagnetic three-way valve on the second oil pipe (391) is connected to a second oil inlet pipe (393), the first oil inlet pipe (381) and the second oil inlet pipe (393) are respectively connected to an external hydraulic oil supply, and a third oil inlet pipe (394) is connected between the electromagnetic three-way valve between the first oil pipe (380) and the first oil inlet pipe (381) and the electromagnetic three-way valve between the pumping pipe (390) and the connecting pipe (392); When the hydraulic oil pump (370) rotates forward, the hydraulic oil is pumped into the first hydraulic rod (130) in sequence through the first oil inlet pipe (381), the first oil pipe (380), the second oil pipe (391), the connecting pipe (392) and the pumping pipe (390), so that the first hydraulic rod (130) is extended to the first stroke. Moreover, after the cylinder (350) is extended and the pressure-sensitive switch (360) is pressed, the hydraulic oil pump (370) rotates reversely, and the hydraulic oil is pumped into the first hydraulic rod (130) in sequence through the second oil inlet pipe (393), the second oil pipe (391), the first oil pipe (380), the third oil inlet pipe (394) and the pumping pipe (390), so that the first hydraulic rod (130) continues to extend to the second stroke.

6. The nickel oxide tabletting device according to claim 5, characterized in that: It also includes a feeding mechanism (500), wherein the feeding mechanism (500) includes a rectangular frame (510) that slides on the bracket (120), and the lower surface of the rectangular frame (510) is in contact with the upper surface of the workbench (110).

7. The nickel oxide tabletting device according to claim 6, characterized in that: The feeding mechanism (500) further comprises a material shaking frame (520) sliding in the rectangular frame (510), wherein the sliding direction of the material shaking frame (520) is perpendicular to the sliding direction of the rectangular frame (510), and a plurality of partitions (530) are arranged in the material shaking frame (520), wherein the spacing between the plurality of partitions (530) is greater than the diameter of the forming hole (111).

8. The nickel oxide tabletting device according to claim 7, characterized in that: The feeding mechanism (500) further comprises a rotating shaft (540) symmetrically connected to both sides of the rectangular frame (510), the ends of the rotating shaft (540) are connected to a swing plate (550), the swing plate (550) is fitted to the outer wall of the shaking frame (520), and the bracket (120) is provided with a rolling groove (560) that cooperates with the rotating shaft (540).

9. The nickel oxide tabletting device according to claim 8, characterized in that: The invention also comprises a material unloading mechanism (400), wherein the material unloading mechanism (400) comprises a connecting frame (420) connected to the bottom of the lower die (150), and the connecting frame (420) is hinged to the end of the cylinder rod (410) of the third hydraulic rod (160). When the cylinder rod (410) is shortened so that after the lower die (150) is pulled out of the forming hole (111), the connecting frame (420) swings on the cylinder rod (410), so that the finished product after tableting slides off.

10. The nickel oxide tabletting device according to claim 9, characterized in that: The unloading mechanism (400) further comprises a crank (430) and a guide plate (440) connected to the workbench (110), one end of the crank (430) being fixedly connected to the hinge shaft of the connecting frame (420), a slide groove (450) being provided on the guide plate (440), and the other end of the crank (430) slidingly sliding in the slide groove (450); The slide groove (450) has a vertical section and an inclined section. When the end of the crank (430) slides in the vertical section, the lower mold (150) is lifted or lowered in a horizontal state. When the end of the crank (430) slides in the inclined section, the lower mold (150) swings.

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