A pre-pressing die for preparing zinc sulfide

Abstract

The present invention discloses a pre-pressing die for preparing zinc sulfide, and relates to the technical field of extrusion dies for preparing zinc sulfide. A pre-pressing die for preparing zinc sulfide comprises a mounting platform, and also comprises: a turntable rotatably arranged on the mounting platform, a plurality of rotating seats are fixedly mounted on the turntable, an extrusion die barrel is rotatably connected in the rotating seat, and both upper and lower ends of the extrusion die barrel are open; the present invention designs a turntable, and arranges a plurality of extrusion die barrels circumferentially on the turntable, so that the compaction operation of zinc sulfide can be performed continuously and in batches. At the same time, the device first pours dry zinc sulfide powder into the extrusion die barrel, and then when the extrusion die barrel passes through the water injection area, water for wetting the zinc sulfide is separately injected into each extrusion die barrel, so that the zinc sulfide that is first wetted can be effectively prevented from undergoing oxidation reaction and causing quality degradation, and at the same time, batch and continuous production can be achieved without manual operation.

Description

Technical Field

[0001] The invention belongs to the technical field of zinc sulfide preparation extrusion dies, and in particular relates to a pre-pressing die for zinc sulfide preparation. Background Art

[0002] Zinc sulfide is white to off-white or light yellow powder. Its color darkens when exposed to light. It is stable in dry air. When placed in moist air or water for a long time, it gradually oxidizes to zinc sulfate. It is soluble in dilute inorganic acid, soluble in alkali, insoluble in water, with a relative density of 3.98 (α type), (d25) 4.102 (β type), and is irritating.

[0003] At present, zinc sulfide is widely used, one of which is infrared imaging technology. Electromagnetic waves longer than 0.78 microns are located outside the red color of the visible light spectrum and are called infrared rays, also known as infrared radiation. They refer to electromagnetic waves with a wavelength of 0.78-1000 microns, of which the part with a wavelength of 0.78-2.0 microns is called near infrared, and the part with a wavelength of 2.0-1000 microns is called thermal infrared. In nature, all objects can radiate infrared rays, so using a detector to measure the infrared difference between the target itself and the background can obtain infrared images formed by different thermal infrared rays;

[0004] Zinc sulfide is the basic material in infrared imaging technology. Since zinc sulfide is usually in powder form, it cannot be directly compacted into products. It needs to be pre-extruded to form granules or blocks before being used for other purposes. The usual operation of granulation and agglomeration is to compact the wet zinc sulfide powder first, and then crush and screen the compacted zinc sulfide to obtain zinc sulfide particles. At present, the granulation and agglomeration operation of zinc sulfide usually involves first adding the wet zinc sulfide powder into a mold, compacting it, and then cutting it after compaction. Zinc sulfide powder that is wetted too early will undergo oxidation reaction, and it is not easy to pour into the mold after being wetted. Moreover, the above operations are mostly completed manually, resulting in low work efficiency.

[0005] For example, the prior art CN216704285U is named as an automatic granulation device for zinc sulfide. This technology is to add the moistened zinc sulfide into the extrusion die barrel for extrusion, which results in that too much zinc sulfide not added into the extrusion die barrel may be oxidized, and this technology is still lacking in granulation efficiency. Therefore, a pre-pressing die for the preparation of zinc sulfide is proposed. Summary of the invention

[0006] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a pre-pressing mold for preparing zinc sulfide which can overcome the above problems or at least partially solve the above problems.

[0007] In order to solve the above technical problems, the basic concept of the technical solution adopted by the present invention is: a pre-pressing mold for the preparation of zinc sulfide, including a mounting table, and also including: a turntable rotatably arranged on the mounting table, a plurality of rotating seats fixedly installed on the turntable, an extrusion mold cylinder rotatably connected in the rotating seat, and the upper and lower ends of the extrusion mold cylinder are both open; an annular bottom plate, fixedly connected to the mounting table, and the annular bottom plate is located below the turntable, and the end of the extrusion mold cylinder is in contact with the upper surface of the annular bottom plate; a loading area arranged at the circumference of the turntable, The invention relates to a water injection zone, an extrusion zone and a cutting zone, wherein the feeding zone is used to inject zinc sulfide powder into the extrusion die barrel, the water injection zone is used to inject water into the extrusion die barrel injected with zinc sulfide powder, and the extrusion zone is used to compact the extrusion die barrel after water injection; a cutter is rotatably arranged on one side of the opening at the end of the extrusion die barrel, and when the compacted zinc sulfide reaches the cutting zone, the end of the extrusion die barrel is separated from the annular bottom plate, and the zinc sulfide in the extrusion die barrel falls from the opening at the end of the extrusion die barrel, and the zinc sulfide is cut, granulated and agglomerated by the cutter.

[0008] Preferably, the feeding area includes a feed pipe, one end of which corresponds to the top opening of the extrusion mold barrel; the extrusion area includes a third mounting bracket installed on the mounting table, a hydraulic rod is fixedly connected to the third mounting bracket, an extrusion rod is fixedly connected to the telescopic end of the hydraulic rod, and the extrusion rod corresponds to the extrusion mold barrel.

[0009] Preferably, the water injection area includes a first mounting frame installed on a mounting platform, a cylinder is fixedly connected to the first mounting frame, a hollow insertion rod is fixedly connected to the telescopic end of the cylinder, a water inlet pipe is installed at the upper end of the insertion rod, and a water outlet hole is opened on the outer periphery of the insertion rod, so that when the extrusion mold barrel stays under the insertion rod, the cylinder pushes the insertion rod into the extrusion mold barrel and injects water into the extrusion mold barrel.

[0010] Furthermore, an end cover is slidably connected to the insertion rod, a spring is sleeved on the insertion rod, a fixing block is fixedly connected to the insertion rod near the cylinder, and the spring is located between the end cover and the fixing block.

[0011] Preferably, the cutting area includes a fourth mounting frame installed on the mounting table, an inflation tube is installed on the fourth mounting frame, a blanking trough is opened on the mounting table, a receiving plate is fixedly connected to the blanking trough, and one end of the annular bottom plate extends to one side of the cutting area, so as to inflate the compacted zinc sulfide into the extrusion die barrel through the inflation tube and push the end thereof to contact the receiving plate, and the zinc sulfide is cut, granulated and agglomerated by the rotating cutter.

[0012] Furthermore, it also includes a dispersion zone, which is arranged between the water injection zone and the extrusion zone. The dispersion zone includes symmetrically arranged second mounting frames, and two of the second mounting frames are rotatably connected to pulleys, and a positive and negative tooth connecting belt is connected between the two pulleys. A first transmission wheel is fixedly connected to the extrusion mold barrel, and the first transmission wheel corresponds to the outer side of the positive and negative tooth connecting belt. When the extrusion mold barrel stays in the dispersion zone, the extrusion mold barrel is driven to rotate through the positive and negative tooth connecting belt to disperse the water in the extrusion mold barrel.

[0013] Furthermore, a rotating shaft is rotatably connected to the bottom of the turntable located on one side of the extrusion mold barrel, a connecting frame is rotatably connected to the extrusion mold barrel, the rotating shaft is rotatably connected to the connecting frame, a rubber rod is fixedly connected to the rotating shaft, and a knocking head is fixedly connected to one end of the rubber rod, so that when the extrusion mold barrel stays in the dispersion area, the knocking head is used to knock the outer wall of the extrusion mold barrel.

[0014] Furthermore, a second transmission wheel is fixedly connected to the rotating shaft, the second transmission wheel is meshed with the first transmission wheel, the cutter is installed on the rotating shaft, the blade of the cutter is close to the upper surface of the cutter, and when the cutter rotates, the blade contacts the bottom surface of the annular bottom plate.

[0015] Preferably, the mounting table is rotatably connected to a third transmission wheel and a fourth transmission wheel respectively, and the third transmission wheel and the fourth transmission wheel are connected by a synchronous belt. The third transmission wheel is located in the dispersion area, and the fourth transmission wheel is located in the cutting area. When the extrusion mold cylinder stays in the cutting area, the fourth transmission wheel engages with the second transmission wheel.

[0016] Furthermore, a piston cylinder is fixedly connected to the mounting platform, a piston rod is slidably connected in the piston cylinder, an air inlet pipe and an air outlet pipe are respectively fixedly connected to the piston cylinder, both the air inlet pipe and the air outlet pipe are provided with a one-way valve, the air outlet pipe is connected to the inflation pipe, an eccentric wheel is fixedly connected to the rotating shaft of the third transmission wheel, and one end of the piston rod is slidably connected to the eccentric wheel.

[0017] After adopting the above technical scheme, the present invention has the following beneficial effects compared with the prior art: the present invention designs a turntable and arranges a plurality of extrusion mold barrels on the circumference of the turntable, so that the compaction operation of zinc sulfide can be operated continuously and in batches. At the same time, the device first pours dry zinc sulfide powder into the extrusion mold barrel, and then when the extrusion mold barrel passes through the water injection area, water for wetting the zinc sulfide is separately injected into each extrusion mold barrel, so that the zinc sulfide that is first wetted can be effectively prevented from undergoing oxidation reaction and causing quality degradation. At the same time, batch and continuous production can be achieved without manual operation, so the device can perform extrusion operation after water injection;

[0018] In addition, in the process of realizing rapid extrusion granulation of zinc sulfide by rotating the turntable, a dispersion zone is set so that when the extrusion die barrel stays in the dispersion zone, the extrusion die barrel is automatically rotated, so that the water injected into the extrusion die barrel is quickly dispersed, and the zinc sulfide powder in the extrusion die barrel is uniformly and quickly wetted. While the extrusion die barrel is rotating, the extrusion die barrel is knocked by the knocking head, so as to assist the water injected into the extrusion die barrel to be quickly dispersed and the wetted zinc sulfide is compacted.

[0019] In addition, when the extrusion die barrel is located in the dispersion area, it will also drive the cutter in the cutting area to rotate automatically, so as to realize automatic cutting, granulation and agglomeration of the extruded zinc sulfide;

[0020] The cutter rotating in the dispersion zone will contact the bottom surface of the annular bottom plate, so when the cutter rotates in the dispersion zone, the effect of automatically grinding the blade will be achieved.

[0021] The specific implementation modes of the present invention are further described in detail below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In the attached picture:

[0023] Figure 1 A schematic diagram of the three-dimensional structure of a pre-pressing mold for preparing zinc sulfide proposed by the present invention Figure 1 ;

[0024] Figure 2 A schematic diagram of the three-dimensional structure of a pre-pressing mold for preparing zinc sulfide proposed by the present invention Figure 2 ;

[0025] Figure 3 A schematic diagram of the three-dimensional structure of a pre-pressing mold for preparing zinc sulfide proposed by the present invention Figure 3 ;

[0026] Figure 4 A pre-pressing die for preparing zinc sulfide proposed by the present invention Figure 3 The structural diagram at A in the middle;

[0027] Figure 5 A top view of a pre-pressing die for preparing zinc sulfide proposed by the present invention;

[0028] Figure 6 This is a schematic structural diagram of an annular bottom plate of a pre-pressing mold for preparing zinc sulfide proposed by the present invention;

[0029] Figure 7 This is a schematic structural diagram of a spring for a pre-pressing die for preparing zinc sulfide proposed by the present invention;

[0030] Figure 8A pre-pressing die for preparing zinc sulfide proposed by the present invention Figure 7 The structural diagram at B in the middle;

[0031] Fig. 9 This is a schematic structural diagram of a synchronous belt of a pre-pressing die for preparing zinc sulfide proposed by the present invention;

[0032] Fig.10 This is a schematic structural diagram of a first transmission wheel and a second transmission wheel of a pre-pressing mold for preparing zinc sulfide proposed by the present invention;

[0033] Fig.11 The present invention provides a schematic structural diagram of a rubber rod, a striking head, a cutting knife and a blade of a pre-pressing mold for preparing zinc sulfide.

[0034] In the figure: 1, mounting table; 10, feeding area; 101, feeding pipe; 11, turntable; 12, rotating seat; 13, extrusion die cylinder; 14, first transmission wheel; 15, rotating shaft; 150, knocking head; 151, rubber rod; 152, connecting frame; 153, cutting knife; 154, blade; 155, second transmission wheel; 2, annular bottom plate; 20, water injection area; 201, first mounting frame; 202, cylinder; 203, plug rod; 204, end cover; 205, water outlet; 206, spring; 207, water inlet pipe; 20 8. Fixed block; 31. Third transmission wheel; 32. Fourth transmission wheel; 33. Synchronous belt; 34. Eccentric wheel; 35. Piston cylinder; 351. Piston rod; 352. Inlet pipe; 353. Exhaust pipe; 30. Dispersion area; 301. Second mounting frame; 302. Pulley; 303. Positive and negative tooth connecting belt; 40. Extrusion area; 401. Third mounting frame; 402. Hydraulic rod; 403. Extrusion rod; 50. Cutting area; 501. Fourth mounting frame; 502. Inflatable pipe; 503. Blanking chute; 504. Receiving plate. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention but are not used to limit the scope of the present invention.

[0036] The following is combined with Figure 1 -Attached Fig.11 , describes in detail the technical solutions provided by each embodiment of the present invention.

[0037] Example 1: Reference Figure 1-Figure 11A pre-pressing die for preparing zinc sulfide comprises a mounting platform 1, and further comprises: a turntable 11 rotatably arranged on the mounting platform 1, a plurality of rotating seats 12 are fixedly mounted on the turntable 11, an extrusion die barrel 13 is rotatably connected in the rotating seat 12, and both upper and lower ends of the extrusion die barrel 13 are open; an annular bottom plate 2 is fixedly connected to the mounting platform 1, and the annular bottom plate 2 is located below the turntable 11, and the end of the extrusion die barrel 13 is in contact with the upper surface of the annular bottom plate 2; a loading area 10, a water injection area 20, an extrusion area 40, and a cutting area 50 arranged at the circumference of the turntable 11 The feeding area 10 is used to inject zinc sulfide powder into the extrusion die barrel 13, the water injection area 20 is used to inject water into the extrusion die barrel 13 injected with zinc sulfide powder, and the extrusion area 40 is used to compact the extrusion die barrel 13 after water injection; the cutter 153 is rotatably arranged on one side of the opening at the end of the extrusion die barrel 13, when the compacted zinc sulfide reaches the cutting area 50, the end of the extrusion die barrel 13 is separated from the annular bottom plate 2, and the zinc sulfide in the extrusion die barrel 13 falls from the opening at the end of the extrusion die barrel 13, and the zinc sulfide is cut, granulated, and agglomerated by the cutter 153;

[0038] The feeding area 10 includes a feeding pipe 101, one end of which corresponds to the top opening of the extrusion die barrel 13; the extrusion area 40 includes a third mounting frame 401 mounted on the mounting platform 1, a hydraulic rod 402 is fixedly connected to the third mounting frame 401, and an extrusion rod 403 is fixedly connected to the telescopic end of the hydraulic rod 402, and the extrusion rod 403 corresponds to the extrusion die barrel 13;

[0039] The water injection area 20 includes a first mounting frame 201 mounted on the mounting platform 1, a cylinder 202 is fixedly connected to the first mounting frame 201, a hollow plug rod 203 is fixedly connected to the telescopic end of the cylinder 202, a water inlet pipe 207 is installed on the upper end of the plug rod 203, and a water outlet hole 205 is opened on the outer periphery of the plug rod 203, so that when the extrusion mold barrel 13 stays under the plug rod 203, the cylinder 202 pushes the plug rod 203 into the extrusion mold barrel 13 and injects water into the extrusion mold barrel 13;

[0040] The cutting area 50 includes a fourth mounting frame 501 mounted on the mounting platform 1, an air charging tube 502 is mounted on the fourth mounting frame 501, a blanking trough 503 is provided on the mounting platform 1, a receiving plate 504 is fixedly connected to the blanking trough 503, one end of the annular bottom plate 2 extends to one side of the cutting area 50, and is used to push the compacted zinc sulfide end into contact with the receiving plate 504 by charging into the extrusion die cylinder 13 through the air charging tube 502, and the zinc sulfide is cut, granulated and agglomerated by the rotating cutter 153;

[0041] When the device is in use, the first motor installed in the mounting table 1 drives the turntable 11 to rotate, and the turntable 11 drives the multiple extrusion mold barrels 13 to rotate when rotating. Therefore, when the extrusion mold barrel 13 reaches the loading area 10, the feeding pipe 101 will inject zinc sulfide powder into the extrusion mold barrel 13, and the end of the extrusion mold barrel 13 is located on the annular bottom plate 2, so the injected zinc sulfide powder will not leak out from the end of the extrusion mold barrel 13. Then the turntable 11 continues to rotate and brings the extrusion mold barrel 13 to the water injection area 20. After reaching the water injection area 20, the turntable 11 stops rotating, and the cylinder 202 pushes the insertion rod 203 to extend into the extrusion mold barrel 13. The external water pump pumps water into the insertion rod 203, and the water enters the extrusion mold barrel 13 from the water outlet 205 to moisten the zinc sulfide powder (it should be understood that the aperture of the water outlet 205 is small, so too much water will not be injected into the extrusion mold barrel 13, and the zinc sulfide powder in the extrusion mold barrel 13 is prevented from being too wet). Then the insertion rod 203 is pulled out of the extrusion mold barrel 13, and the turntable 11 continues to rotate to bring the extrusion mold barrel 13 filled with water to the extrusion area 40, and stays in the extrusion area 40. At this time, the hydraulic rod 402 pushes the extrusion rod 403 into the extrusion mold barrel 13 to compact the zinc sulfide powder in the extrusion mold barrel 13;

[0042] When the compaction operation is completed, the turntable 11 continues to drive the extrusion die barrel 13 to move to the cutting area 50;

[0043] Since one end of the annular bottom plate 2 extends to one side of the cutting area 50, and the other end extends to the feeding area 10, when the extrusion die barrel 13 reaches the cutting area 50, the end of the extrusion die barrel 13 will be separated from the annular bottom plate 2, so that the end of the extrusion die barrel 13 is aligned with the receiving plate 504 in the blanking chute 503, and there is a little gap between the receiving plate 504 and the end of the extrusion die barrel 13, so the compacted zinc sulfide in the extrusion die barrel 13 will slide down onto the receiving plate 504, and at this time, the rotating cutter 153 cuts the zinc sulfide into granules and blocks;

[0044] Therefore, the device is designed with a turntable 11 and a plurality of extrusion die barrels 13 are arranged on the circumference of the turntable 11, so that the compaction operation of zinc sulfide can be performed continuously and in batches. At the same time, the device first pours dry zinc sulfide powder into the extrusion die barrel 13, and then when the extrusion die barrel 13 passes through the water injection area 20, water for wetting the zinc sulfide is separately injected into each extrusion die barrel 13, thereby effectively avoiding the oxidation reaction of the firstly wetted zinc sulfide and causing the quality to deteriorate. At the same time, batch and continuous production can be achieved without manual operation.

[0045] Example 2: Reference Figure 7 , Figure 8, a pre-pressing mold for preparing zinc sulfide, which is basically the same as Example 1, and further: an end cover 204 is slidably connected to the plug rod 203, a spring 206 is sleeved on the plug rod 203, and a fixing block 208 is fixedly connected to the plug rod 203 near the cylinder 202, and the spring 206 is located between the end cover 204 and the fixing block 208;

[0046] The diameter of the end cap 204 is smaller than the inner diameter of the extrusion die barrel 13. Therefore, when the cylinder 202 pushes the insertion rod 203 to be inserted into the extrusion die barrel 13, the end cap 204 can pre-press the zinc sulfide powder in the extrusion die barrel 13 when entering the extrusion die barrel 13, thereby preventing the zinc sulfide powder in the extrusion die barrel 13 from being loosened. In addition, the problem of zinc sulfide powder splashing can be avoided when the water outlet 205 injects water into the extrusion die barrel 13.

[0047] When the insertion rod 203 moves upward, the end cover 204 is affected by the thrust of the spring 206 and is located in the extrusion die barrel 13. This allows the zinc sulfide powder adhering to the surface of the insertion rod 203 to be scraped off into the extrusion die barrel 13 through the end cover 204 when the insertion rod 203 moves upward, thereby avoiding the waste of zinc sulfide when the insertion rod 203 is pulled out of the extrusion die barrel 13.

[0048] Example 3: Reference Figure 4 , Figure 6 , Fig.11 , a pre-pressing mold for preparing zinc sulfide, which is basically the same as Example 2, and further includes: a dispersion zone 30, which is arranged between the water injection zone 20 and the extrusion zone 40, and the dispersion zone 30 includes a symmetrically arranged second mounting frame 301, and the two second mounting frames 301 are rotatably connected to the pulleys 302, and the two pulleys 302 are connected with a positive and negative tooth connecting belt 303, and the extrusion mold barrel 13 is fixedly connected with a first transmission wheel 14, and the first transmission wheel 14 corresponds to the outer side of the positive and negative tooth connecting belt 303, so that when the extrusion mold barrel 13 stays in the dispersion zone 30, the extrusion mold barrel 13 is driven to rotate through the positive and negative tooth connecting belt 303, so that the water in the extrusion mold barrel 13 is dispersed;

[0049] When the turntable 11 rotates and brings the extrusion mold barrel 13 to the dispersion area 30, the first transmission wheel 14 on the extrusion mold barrel 13 will be in close contact with the outer wall of the positive and negative tooth connecting belt 303. At this time, the second motor driven pulley 302 installed in the mounting platform 1 rotates, thereby rotating the positive and negative tooth connecting belt 303 and driving the first transmission wheel 14 to rotate, thereby causing the extrusion mold barrel 13 to rotate in the rotating seat 12. When the extrusion mold barrel 13 rotates, the water injected into the extrusion mold barrel 13 is quickly dispersed, so that the injected water can more evenly and quickly wet the zinc sulfide powder in the extrusion mold barrel 13, effectively improving the extrusion effect of the extrusion rod 403 on the zinc sulfide powder.

[0050] Example 4: Reference Figure 1-Figure 11 , a pre-pressing mold for preparing zinc sulfide, which is basically the same as Example 3, and further: a rotating shaft 15 is rotatably connected to the bottom of a rotating disk 11 located on one side of an extrusion mold barrel 13, a connecting frame 152 is rotatably connected to the extrusion mold barrel 13, the rotating shaft 15 is rotatably connected to the connecting frame 152, a rubber rod 151 is fixedly connected to the rotating shaft 15, and a knocking head 150 is fixedly connected to one end of the rubber rod 151, so that when the extrusion mold barrel 13 stays in the dispersion area 30, the knocking head 150 knocks the outer wall of the extrusion mold barrel 13;

[0051] The mounting platform 1 is rotatably connected to a third transmission wheel 31 and a fourth transmission wheel 32, which are connected via a synchronous belt 33. The third transmission wheel 31 is located in the dispersion area 30, and the fourth transmission wheel 32 is located in the cutting area 50. When the extrusion die cylinder 13 stays in the cutting area 50, the fourth transmission wheel 32 is meshed with the second transmission wheel 155.

[0052] The rotating shaft 15 is fixedly connected with a second transmission wheel 155, which is meshed with the first transmission wheel 14; the cutter 153 is mounted on the rotating shaft 15;

[0053] When the extrusion mold barrel 13 on the turntable 11 reaches the dispersion area 30, the first transmission wheel 14 on the extrusion mold barrel 13 rotates under the drive of the positive and negative tooth connection belt 303, and drives the second transmission wheel 155 to rotate, so that the rotating shaft 15 rotates. When the rotating shaft 15 rotates, it drives the knocking head 150 on the rubber rod 151 to repeatedly knock the outer wall of the extrusion mold barrel 13, so that the wetted zinc sulfide in the extrusion mold barrel 13 is compacted, further facilitating the extrusion of the extrusion area 40, and at the same time allowing the injected water to quickly wet the zinc sulfide powder in the extrusion mold barrel 13;

[0054] In addition, the extrusion die barrel 13 located in the cutting area 50 will continuously strike the outer wall of the extrusion die barrel 13 when the cutter 153 cuts the zinc sulfide, further causing the zinc sulfide in the extrusion die barrel 13 to slide down;

[0055] When the extrusion die barrel 13 is in the dispersion area 30, the rotating second transmission wheel 155 drives the third transmission wheel 31 to rotate, and drives the fourth transmission wheel 32 to rotate through the setting of the synchronous belt 33, and the extrusion die barrel 13 located in the cutting area 50 and the second transmission wheel 155 on the rotating shaft 15 corresponding to the extrusion die barrel 13 are driven to rotate by the rotating fourth transmission wheel 32, so that the cutter 153 rotates to cut the extruded zinc sulfide;

[0056] Therefore, the device can simultaneously drive the rotating shaft 15 in the dispersion area 30 and the cutting area 50 to rotate without designing other electrical equipment;

[0057] The first transmission wheel 14, the second transmission wheel 155, the third transmission wheel 31, and the fourth transmission wheel 32 can be spur gears or rubber wheels with meshing teeth on the outer circumference.

[0058] Reference Figure 6 , Fig.11 , the blade 154 of the cutter 153 is close to the upper surface of the cutter 153, and when the cutter 153 rotates, the blade 154 contacts the bottom surface of the annular bottom plate 2;

[0059] When the cutter 153 is located in the dispersion area 30 and rotates by the rotating shaft 15, the blade 154 of the cutter 153 will contact the bottom surface of the annular bottom plate 2 during the rotation, and then the blade 154 of the cutter 153 can be polished through the annular bottom plate 2, so that the cutter 153 can remain sharp during use, thereby maintaining the pelletizing and dicing effect on the extruded zinc sulfide.

[0060] Reference Figure 1 , Figure 6 , Fig. 9 A piston cylinder 35 is fixedly connected to the mounting platform 1, a piston rod 351 is slidably connected in the piston cylinder 35, an air inlet pipe 352 and an air outlet pipe 353 are fixedly connected to the piston cylinder 35, and a one-way valve is provided on each of the air inlet pipe 352 and the air outlet pipe 353. The air outlet pipe 353 is connected to the inflation pipe 502, an eccentric wheel 34 is fixedly connected to the rotating shaft of the third transmission wheel 31, and one end of the piston rod 351 is slidably connected to the eccentric wheel 34;

[0061] When the extrusion die barrel 13 is located in the dispersion area 30, the rotation of the third transmission wheel 31 also drives the eccentric wheel 34 to rotate, and the eccentric wheel 34 reciprocates to pull the piston rod 351 to slide in the piston barrel 35 during the rotation process, so that the piston rod 351 squeezes the gas in the piston barrel 35 and enters the gas charging tube 502 in the cutting area 50 through the gas outlet pipe 353;

[0062] When the extrusion die barrel 13 reaches the cutting area 50, the bottom surface of the fourth mounting frame 501 will be in contact with the upper end surface of the extrusion die barrel 13, and one end of the inflation tube 502 will be connected with the extrusion die barrel 13. At this time, the gas injected into the extrusion die barrel 13 through the piston cylinder 35 will push the extruded zinc sulfide to be discharged from the end of the extrusion die barrel 13, further facilitating the discharge of the zinc sulfide in the extrusion die barrel 13 and further facilitating the cutting of the zinc sulfide by the cutter 153.

[0063] In addition, after all the zinc sulfide in the extrusion die barrel 13 is discharged, the gas injected into the extrusion die barrel 13 can also clean the inner wall of the extrusion die barrel 13 to prevent the residual zinc sulfide from being in the extrusion die barrel 13;

[0064] In another embodiment, the inflation tube 502 is connected to an external air pump to inject gas into the extrusion die barrel 13 .

[0065] Therefore, the present invention designs a turntable 11 and arranges a plurality of extrusion mold barrels 13 on the circumference of the turntable 11, so that the compaction operation of zinc sulfide can be performed continuously and in batches. At the same time, the device first pours dry zinc sulfide powder into the extrusion mold barrel 13, and then when the extrusion mold barrel 13 passes through the water injection area 20, water for wetting the zinc sulfide is separately injected into each extrusion mold barrel 13, so that the zinc sulfide that is first wetted can be effectively prevented from undergoing oxidation reaction and causing quality degradation. At the same time, batch and continuous production can be achieved without manual operation.

[0066] In addition, in the process of realizing rapid extrusion granulation of zinc sulfide by rotating the turntable 11, by setting the dispersion zone 30, the extrusion die barrel 13 is automatically rotated when it stays in the dispersion zone 30, so that the water injected into the extrusion die barrel 13 is quickly dispersed, so that the zinc sulfide powder in the extrusion die barrel 13 is uniformly and quickly wetted, and while the extrusion die barrel 13 is rotating, the extrusion die barrel 13 is knocked by the knocking head 150, so as to assist the water injected into the extrusion die barrel 13 to be quickly dispersed and the wetted zinc sulfide is compacted;

[0067] In addition, when the extrusion die barrel 13 is located in the dispersion area 30, it will also drive the cutter 153 located in the cutting area 50 to rotate automatically, so as to realize automatic cutting, granulation and agglomeration of the extruded zinc sulfide.

[0068] The above is only a preferred embodiment of the present invention, and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technician familiar with the present invention can make some changes or modify the technical contents suggested above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention without departing from the content of the technical solution of the present invention still fall within the scope of the solution of the present invention.

Claims

1. A pre-pressing die for preparing zinc sulfide, comprising a mounting table (1), characterized in that: Also includes: A turntable (11) is rotatably mounted on the mounting platform (1), a plurality of rotating seats (12) being fixedly mounted on the turntable (11), an extrusion mold cylinder (13) being rotatably connected to the rotating seat (12), and both upper and lower ends of the extrusion mold cylinder (13) are open; An annular bottom plate (2) is fixedly connected to the mounting platform (1), and the annular bottom plate (2) is located below the turntable (11), and the end of the extrusion die cylinder (13) is in contact with the upper surface of the annular bottom plate (2); A loading area (10), a water injection area (20), an extrusion area (40), and a cutting area (50) are arranged at the circumference of the rotating disk (11), the loading area (10) is used to inject zinc sulfide powder into the extrusion die barrel (13), the water injection area (20) is used to inject water into the extrusion die barrel (13) injected with zinc sulfide powder, and the extrusion area (40) is used to compact the extrusion die barrel (13) after the water injection; A cutter (153) is rotatably arranged on one side of the opening at the end of the extrusion die barrel (13); when the compacted zinc sulfide reaches the cutting area (50), the end of the extrusion die barrel (13) is separated from the annular bottom plate (2), and the zinc sulfide in the extrusion die barrel (13) falls from the opening at the end of the extrusion die barrel (13), and the zinc sulfide is cut into granules and blocks by the cutter (153); The cutting area (50) comprises a fourth mounting frame (501) mounted on the mounting platform (1), an air charging tube (502) being mounted on the fourth mounting frame (501), a blanking trough (503) being provided on the mounting platform (1), a receiving plate (504) being fixedly connected to the blanking trough (503), one end of the annular bottom plate (2) extending to one side of the cutting area (50), for charging and pushing the compacted zinc sulfide through the air charging tube (502) into the extrusion die cylinder (13) so that the end thereof abuts against the receiving plate (504), and the zinc sulfide is cut, granulated and agglomerated by the rotating cutter (153); It also includes a dispersion area (30) arranged between the water injection area (20) and the extrusion area (40), the dispersion area (30) including symmetrically arranged second mounting frames (301), two second mounting frames (301) are rotatably connected to pulleys (302), a positive and negative tooth connection belt (303) is connected between the two pulleys (302), and the extrusion mold barrel (13) is fixedly connected to a first transmission wheel (14), the first transmission wheel (14) corresponds to the outer side of the positive and negative tooth connection belt (303), so that when the extrusion mold barrel (13) stays in the dispersion area (30), the positive and negative tooth connection belt (303) drives the extrusion mold barrel (13) to rotate, so that the water in the extrusion mold barrel (13) is dispersed; A rotating shaft (15) is rotatably connected to the bottom of the rotating disk (11) located on one side of the extrusion mold barrel (13); a connecting frame (152) is rotatably connected to the extrusion mold barrel (13); the rotating shaft (15) and the connecting frame (152) are rotatably connected; a rubber rod (151) is fixedly connected to the rotating shaft (15); a knocking head (150) is fixedly connected to one end of the rubber rod (151) for knocking the outer wall of the extrusion mold barrel (13) through the knocking head (150) when the extrusion mold barrel (13) stays in the dispersion area (30).

2. A pre-pressing mold for preparing zinc sulfide according to claim 1, characterized in that: The feeding area (10) comprises a feeding pipe (101), one end of the feeding pipe (101) corresponds to the top opening of the extrusion die barrel (13); The extrusion area (40) comprises a third mounting frame (401) mounted on the mounting platform (1), a hydraulic rod (402) being fixedly connected to the third mounting frame (401), an extrusion rod (403) being fixedly connected to the telescopic end of the hydraulic rod (402), and the extrusion rod (403) corresponding to the extrusion die cylinder (13).

3. A pre-pressing mold for preparing zinc sulfide according to claim 1, characterized in that: The water injection area (20) comprises a first mounting frame (201) mounted on the mounting platform (1), a cylinder (202) being fixedly connected to the first mounting frame (201), a hollow insertion rod (203) being fixedly connected to the telescopic end of the cylinder (202), a water inlet pipe (207) being mounted on the upper end of the insertion rod (203), and a water outlet hole (205) being provided on the outer periphery of the insertion rod (203) so that when the extrusion die barrel (13) stays below the insertion rod (203), the cylinder (202) pushes the insertion rod (203) into the extrusion die barrel (13) and injects water into the extrusion die barrel (13).

4. A pre-pressing die for preparing zinc sulfide according to claim 3, characterized in that: The insertion rod (203) is slidably connected to an end cover (204), the insertion rod (203) is sleeved with a spring (206), the insertion rod (203) is fixedly connected to a fixing block (208) near the cylinder (202), and the spring (206) is located between the end cover (204) and the fixing block (208).

5. A pre-pressing die for preparing zinc sulfide according to claim 1, characterized in that: A second transmission wheel (155) is fixedly connected to the rotating shaft (15), the second transmission wheel (155) meshing with the first transmission wheel (14), the cutter (153) being mounted on the rotating shaft (15), the blade (154) of the cutter (153) being close to the upper surface of the cutter (153), and when the cutter (153) is rotating, the blade (154) is in contact with the bottom surface of the annular bottom plate (2).

6. A pre-pressing die for preparing zinc sulfide according to claim 5, characterized in that: The mounting platform (1) is rotatably connected to a third transmission wheel (31) and a fourth transmission wheel (32), respectively; the third transmission wheel (31) and the fourth transmission wheel (32) are connected via a synchronous belt (33); the third transmission wheel (31) is located in the dispersion area (30), and the fourth transmission wheel (32) is located in the cutting area (50); when the extrusion die cylinder (13) stays in the cutting area (50), the fourth transmission wheel (32) meshes with the second transmission wheel (155).

7. A pre-pressing die for preparing zinc sulfide according to claim 6, characterized in that: A piston cylinder (35) is fixedly connected to the mounting platform (1), a piston rod (351) is slidably connected to the piston cylinder (35), an air inlet pipe (352) and an air outlet pipe (353) are fixedly connected to the piston cylinder (35), respectively, the air inlet pipe (352) and the air outlet pipe (353) are both provided with a one-way valve, the air outlet pipe (353) is connected to the inflation pipe (502), an eccentric wheel (34) is fixedly connected to the rotating shaft of the third transmission wheel (31), and one end of the piston rod (351) is slidably connected to the eccentric wheel (34).

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