Tablet press for producing pesticide water dispersible tablets

Abstract

The invention relates to the technical field of tablet press equipment, in particular to a tablet press for producing pesticide water dispersible tablets. Comprising a connecting frame; the second supporting plate is connected to the connecting frame in a sliding mode, the second supporting plate is fixedly connected with a first fixing cylinder, and the first fixing cylinder is rotationally connected with an upper punching head; and the hydraulic push rod is fixedly connected to the connecting frame, the telescopic end of the hydraulic push rod is fixedly connected with a second fixing cylinder, and the second fixing cylinder is slidably and rotationally connected with a lower punching head. Through the reverse rotation of the upper punching head and the lower punching head, the phenomenon that pesticide water dispersible tablets have pits due to the fact that pesticide water dispersible tablet raw materials adhere to the upper punching head and the lower punching head is effectively reduced, the production quality of the pesticide water dispersible tablets is ensured, the surfaces of the pesticide water dispersible tablets are'polished ', and the production efficiency is improved. The surface of the pesticide water dispersible tablet becomes smoother and smoother, and the appearance quality of the pesticide water dispersible tablet is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of tablet press equipment, and particularly relates to a tablet press for producing pesticide water-dispersible tablets. Background Art

[0002] Pesticide water-dispersible tablets are a form of solid preparation of pesticides, which are widely used in pest control due to their easy use and good stability. In the production process of pesticide water-dispersible tablets, the tablet press is one of the key equipment. It mainly uses a punching head to compress the mixed raw materials of pesticide water-dispersible tablets into sheets. The types of tablet presses include: single-punch tablet presses, rotary tablet presses, special-shaped tablet presses, etc. Among them, the single-punch tablet press is widely used in small-batch production processes because of its simple structure, easy maintenance, low operating cost, and easy mold replacement. However, in the production process of the existing single-punch tablet press, the punching head may apply excessive pressure to the raw materials of pesticide water-dispersible tablets, resulting in a reaction force of the raw materials of pesticide water-dispersible tablets adhering to the punching head. When the punching head moves subsequently, it will take away some of the raw materials of pesticide water-dispersible tablets from the pesticide water-dispersible tablets, causing pits on the surface of the produced pesticide water-dispersible tablets, and finally resulting in a decrease in the weight of the pesticide water-dispersible tablets, affecting the use effect of the pesticide water-dispersible tablets. Summary of the Invention

[0003] In order to overcome the problems proposed in the above background art, the present invention provides a tablet press for producing pesticide water-dispersible tablets.

[0004] The technical solution is as follows: A tablet press for producing pesticide water-dispersible tablets, comprising:

[0005] A connecting frame, and a first support plate is fixedly connected to the connecting frame;

[0006] A slide rail, fixedly connected to the first support plate. The first support plate and the slide rail are respectively provided with through holes and through holes, and the two are communicated. The slide rail is slidably connected with a feeding shell;

[0007] A second support plate, slidably connected to the connecting frame. A first fixed cylinder is fixedly connected to the second support plate, and an upper punching head is rotatably connected to the first fixed cylinder;

[0008] A hydraulic push rod, fixedly connected to the connecting frame. The telescopic end of the hydraulic push rod is fixedly connected with a second fixed cylinder. A lower punching head is slidably and rotatably connected to the second fixed cylinder. The axes of the upper punching head, the through hole of the first support plate, the through hole of the slide rail, and the axis of the lower punching head coincide;

[0009] A first transmission mechanism, arranged on the upper punching head, for driving the upper punching head to rotate;

[0010] The second transmission mechanism is arranged on the lower stamping head and is used to drive the lower stamping head to move up and down and rotate.

[0011] Further, the first transmission mechanism includes:

[0012] A first spiral torsion spring is fixedly connected between the first fixed cylinder and the upper stamping head;

[0013] A first guiding cylinder is fixedly connected to the upper stamping head. The first guiding cylinder is provided with a guiding groove. The second support plate is fixedly connected with a first limiting rod, and the first limiting rod is used to control the rotation of the first guiding cylinder through the guiding groove of the first guiding cylinder.

[0014] Further, the second transmission mechanism includes:

[0015] A second spiral torsion spring is fixedly connected between the second fixed cylinder and the lower stamping head;

[0016] A second guiding cylinder is fixedly connected to the lower stamping head. The second guiding cylinder is provided with a guiding groove. The connecting frame is fixedly connected with a second limiting rod, and the second limiting rod is used to control the rotation of the second guiding cylinder through the guiding groove of the second guiding cylinder;

[0017] A first limiting component is arranged at the lower part of the lower stamping head and is used to ensure the extrusion degree of the pesticide water dispersible tablets.

[0018] Further, the first limiting component includes:

[0019] A round rod is fixedly connected to the lower stamping head;

[0020] A fixing plate is fixedly connected to the connecting frame. A sliding rod is slidably connected to the fixing plate, and the sliding rod is used to limit the round rod;

[0021] An unlocking component is arranged on the sliding rod and is used to release the limit on the sliding rod when the extrusion of the pesticide water dispersible tablets is completed.

[0022] Further, the unlocking component includes:

[0023] An extrusion frame is fixedly connected to the second support plate, and the extrusion frame is slidably connected to the first support plate;

[0024] A fixing rod is fixedly connected to the sliding rod, and the extrusion frame is used to extrude and limit the fixing rod;

[0025] A first elastic member is fixedly connected between the fixing plate and the sliding rod.

[0026] Further, it further includes:

[0027] The extrusion component is arranged on the feeding shell and is used for pre-extruding the raw materials of the pesticide water dispersible tablets. The extrusion component includes:

[0028] A sliding plate, which is slidably connected to the feeding shell;

[0029] An extrusion rod, which is slidably connected to the sliding plate;

[0030] A first elastic member is fixedly connected between the extrusion rod and the sliding plate, and a second elastic member is fixedly connected between the sliding plate and the feeding shell.

[0031] Furthermore, a limit pin is fixedly connected to the feeding shell, the extrusion rod is provided with an inclined surface, and the limit pin is used for extruding the inclined surface of the extrusion rod.

[0032] Furthermore, it further includes:

[0033] A stagnation component, which is arranged on the slide rail and is used for making the extrusion rod stay at the through hole of the slide rail when the feeding shell slides. The stagnation component includes:

[0034] A third limit rod, which is fixedly connected to the sliding plate;

[0035] A first n-shaped frame, which is fixedly connected to the slide rail. A rotating block is rotatably connected to the first n-shaped frame, and the third limit rod is used for extruding the rotating block;

[0036] A limit plate, which is slidably connected to the first n-shaped frame, and the limit plate is used for limiting the rotating block;

[0037] A second limit component, which is arranged on the first n-shaped frame, and the second limit component is used for restricting the movement of the sliding plate.

[0038] Furthermore, the second limit component includes:

[0039] A second n-shaped frame, which is fixedly connected to the slide rail. A sliding frame is slidably connected to the second n-shaped frame, and a rope is fixedly connected between the limit plate and the sliding frame;

[0040] Both the first n-shaped frame and the second n-shaped frame are fixedly connected with guide frames, and both of the two guide frames are used for limiting the rope;

[0041] An arched block, which is fixedly connected to the feeding shell, and the arched block is used for extruding the sliding frame.

[0042] Furthermore, a second elastic member is fixedly connected between the limit plate and the first n-shaped frame, an L-shaped plate is fixedly connected to the second n-shaped frame, and a third elastic member is fixedly connected between the sliding frame and the L-shaped plate.

[0043] Compared with the prior art, the beneficial effects of the present invention are:

[0044] 1. By the reverse rotation of the upper punch head and the lower punch head, the present invention changes the contact mode between the pesticide water dispersible tablet and the upper punch head and the lower punch head, effectively reducing the phenomenon that the raw materials of the pesticide water dispersible tablet adhere to the upper punch head and the lower punch head, resulting in pits on the pesticide water dispersible tablet, ensuring the production quality of the pesticide water dispersible tablet, and "polishing" the surface of the pesticide water dispersible tablet to make the surface of the pesticide water dispersible tablet smoother and flatter, improving the appearance quality of the pesticide water dispersible tablet.

[0045] 2. By the reciprocating rotation mode of the upper punch head and the lower punch head, the present invention "polishes" the upper surface of the pesticide water dispersible tablet, reducing the influence of the spiral pattern on the surface of the pesticide water dispersible tablet caused by the continuous rotation of the upper punch head and the lower punch head in one direction.

[0046] 3. By the pre - extrusion of the extrusion rod on the raw materials of the pesticide water dispersible tablet, the present invention effectively reduces the problem that when the upper punch head extrudes the raw materials of the pesticide water dispersible tablet in the slide rail through - hole, part of the raw materials of the pesticide water dispersible tablet runs out of the slide rail through - hole carried by the gas due to the gas mixed in the gap between the raw materials of the pesticide water dispersible tablet in the slide rail through - hole, reducing the waste of the raw materials of the pesticide water dispersible tablet and ensuring the amount of each pesticide water dispersible tablet. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] Figure 1 is a three - dimensional structure schematic diagram of the present invention;

[0048] Figure 2 is a three - dimensional structure schematic diagram of the first support plate and the feeding shell of the present invention;

[0049] Figure 3 is a three - dimensional structure schematic diagram of the hydraulic push rod and the first limiting rod of the present invention;

[0050] Figure 4 is a three - dimensional structure schematic diagram of the second guide cylinder and the sliding rod of the present invention;

[0051] Figure 5 is a three - dimensional structure schematic diagram of the second fixing cylinder and the fixing rod of the present invention;

[0052] Figure 6 is a three - dimensional structure schematic diagram of the upper punch head and the first guide cylinder of the present invention;

[0053] Figure 7 is a three - dimensional structure schematic diagram of the second n - shaped frame and the L - shaped plate of the present invention;

[0054] Figure 8 is a sectional view of the three - dimensional structure of the sliding plate and the extrusion rod of the present invention;

[0055] Figure 9Schematic three-dimensional structure diagram of the second n-shaped frame and the arched block of the present invention;

[0056] Figure 10 Schematic three-dimensional structure diagram of the limiting plate and the guiding frame of the present invention;

[0057] Figure 11 Schematic three-dimensional structure diagram of the sliding frame and the third elastic member of the present invention.

[0058] In the figure: 1, connecting frame; 2, first support plate; 3, slide rail; 4, feeding shell; 5, second support plate; 6, first fixing cylinder; 7, upper stamping head; 8, hydraulic push rod; 9, second fixing cylinder; 10, lower stamping head; 11, first spiral torsion spring; 12, first guiding cylinder; 13, first limiting rod; 14, second spiral torsion spring; 15, second guiding cylinder; 16, second limiting rod; 1901, round rod; 1902, fixing plate; 1903, sliding rod; 2001, extrusion frame; 2002, fixing rod; 2003, first elastic member; 2101, sliding plate; 2102, extrusion rod; 2103, second elastic member; 2201, limiting pin; 2301, third limiting rod; 2302, first n-shaped frame; 2303, rotating block; 2401, limiting plate; 2402, second n-shaped frame; 2403, sliding frame; 2404, rope; 2405, guiding frame; 2406, arched block; 2601, L-shaped plate; 2602, third elastic member. Detailed implementation manners

[0059] The present invention will be specifically described below with reference to the accompanying drawings. Hereinafter, the pesticide water dispersible tablets will be simply referred to as water dispersible tablets.

[0060] Embodiment 1

[0061] A tablet press for producing pesticide water dispersible tablets, as Figures 1-8 shown, includes: a connecting frame 1, the connecting frame 1 is fixedly connected with a first support plate 2; a slide rail 3, fixedly connected to the first support plate 2, the first support plate 2 and the slide rail 3 are respectively provided with through holes and through openings, and the two are communicated, the slide rail 3 is slidably connected with a feeding shell 4; a second support plate 5, slidably connected to the connecting frame 1, the second support plate 5 is fixedly connected with a first fixing cylinder 6, the first fixing cylinder 6 is rotatably connected with an upper stamping head 7; a hydraulic push rod 8, fixedly connected to the connecting frame 1, the telescopic end of the hydraulic push rod 8 is fixedly connected with a second fixing cylinder 9, the second fixing cylinder 9 is slidably and rotatably connected with a lower stamping head 10, the axes of the upper stamping head 7, the through hole of the first support plate 2, the through opening of the slide rail 3 and the axis of the lower stamping head 10 coincide; a first transmission mechanism, arranged on the upper stamping head 7, for driving the upper stamping head 7 to rotate; a second transmission mechanism, arranged on the lower stamping head 10, for driving the lower stamping head 10 to move up and down and rotate.

[0062] In the above solution, the connecting frame 1 is composed of an upper bottom plate, a lower bottom plate and four columns between the two. A numerical control table is provided on the upper bottom plate of the connecting frame 1. The numerical control table on the connecting frame 1 is an existing device, and its specific structure is not shown in the figure. The diameter of the through hole of the first support plate 2 is equal to the diameter of the through hole on the slide rail 3. The first support plate 2 is located below the second support plate 5. The upper surface of the slide rail 3 is made of a smooth material, such as stainless steel, to reduce the wear on the lower surface of the feeding shell 4. The inner diameter of the through hole on the slide rail 3 is equal to the inner diameter of the through hole of the first support plate 2. An inclined plate is fixedly connected to the front side of the slide rail 3 to make the water-dispersible tablets slide down along the inclined plate fixedly connected to the slide rail 3, facilitating the collection of the water-dispersible tablets. The feeding shell 4 is an existing device. The feeding shell 4 is provided with a discharge hole, and the discharge hole of the feeding shell 4 is used to put the raw material of the pesticide water-dispersible tablets into the through hole of the slide rail 3. The feeding shell 4 is externally connected with a feeding device and a pushing device electrically connected to the numerical control table on the connecting frame 1. The feeding device and the pushing device externally connected to the feeding shell 4 are both existing devices, and their specific structures are not shown in the figure. The pushing device is used to push the feeding shell 4 to move back and forth. A transmission device electrically connected to the numerical control table on the connecting frame 1 is provided on the second support plate 5. The transmission device is an existing device and is used to drive the second support plate 5 to move up and down reciprocally. The hydraulic push rod 8 is located below the first support plate 2. In the initial position, the slide rail 3 and the lower punch 10 form a storage cavity.

[0063] As Figures 2-6 shown, the first transmission mechanism includes: a first spiral torsion spring 11 fixedly connected between the first fixed cylinder 6 and the upper punch 7; a first guide cylinder 12 fixedly connected to the upper punch 7. The first guide cylinder 12 is provided with a guide groove. The second support plate 5 is fixedly connected with a first limit rod 13, and the first limit rod 13 is used to control the rotation of the first guide cylinder 12 through the guide groove of the first guide cylinder 12.

[0064] In the above solution, the diameters of the upper punch 7 and the lower punch 10 are slightly smaller than the inner diameters of the through holes of the first support plate 2 and the through holes on the slide rail 3 to ensure that the upper punch 7 and the lower punch 10 can smoothly enter and exit the through holes of the first support plate 2 and the through holes on the slide rail 3. The hydraulic push rod 8 is electrically connected to the numerical control table on the connecting frame 1. Two guide grooves are provided on the first guide cylinder 12, and the two guide grooves on the first guide cylinder 12 are symmetrically distributed about the center. The guide groove provided on the first guide cylinder 12 is formed by connecting a straight chute on the lower side and an inclined chute on the upper side. The number of the first limit rods 13 is two.

[0065] As Figures 1-6As shown in the figure, the second transmission mechanism includes: a second spiral torsion spring 14 fixedly connected between the second fixed cylinder 9 and the lower punch head 10; a second guide cylinder 15 fixedly connected to the lower punch head 10. The second guide cylinder 15 is provided with a guide groove. The connecting frame 1 is fixedly connected with a second limiting rod 16. The second limiting rod 16 is used to control the rotation of the second guide cylinder 15 through the guide groove of the second guide cylinder 15; a first limiting component is arranged at the lower part of the lower punch head 10 and is used to ensure the extrusion degree of the pesticide water-dispersible tablets.

[0066] In the above solution, there are two guide grooves on the second guide cylinder 15. The two guide grooves on the second guide cylinder 15 are symmetrically distributed about the center. The number of the second limiting rods 16 is two. The rotation direction of the spiral chute of the first guide cylinder 12 is opposite to the rotation direction of the guide groove of the second guide cylinder 15, so as to make the rotation directions of the upper punch head 7 and the lower punch head 10 opposite.

[0067] As Figures 1-7 shown, the first limiting component includes: a round rod 1901 fixedly connected to the lower punch head 10; a fixing plate 1902 fixedly connected to the connecting frame 1. The fixing plate 1902 is slidably connected with a sliding rod 1903. The sliding rod 1903 is used to limit the round rod 1901; an unlocking component is arranged on the sliding rod 1903 and is used to release the limit on the sliding rod 1903 when the extrusion of the pesticide water-dispersible tablets is completed.

[0068] In the above solution, the number of the round rods 1901 is two. The two round rods 1901 are symmetrically distributed left and right and are used to apply a stable supporting force to the lower punch head 10. The number of the fixing plates 1902 is two. The two fixing plates 1902 are symmetrically distributed left and right. An arc-shaped notch is formed at one end of the sliding rod 1903 close to the adjacent round rod 1901. The concave surface of the arc-shaped notch of the sliding rod 1903 is in close contact with the lower side surface of the round rod 1901, so as to provide a stable supporting force for the adjacent round rod 1901 while not affecting the sliding of the sliding rod 1903 along the fixing plate 1902.

[0069] As Figures 3-7 shown, the unlocking component includes: an extrusion frame 2001 fixedly connected to the second support plate 5. The extrusion frame 2001 is slidably connected with the first support plate 2; a fixing rod 2002 fixedly connected to the sliding rod 1903. The extrusion frame 2001 is used to extrude and limit the fixing rod 2002; a first elastic member 2003 is fixedly connected between the fixing plate 1902 and the sliding rod 1903.

[0070] In the above solution, the number of the extrusion frames 2001 is two, and the two extrusion frames 2001 are symmetrically distributed left and right. The extrusion frame 2001 is composed of a connecting rod and a rectangular block. Bevel surfaces are arranged on the back sides of the rectangular blocks in the two extrusion frames 2001, which are used to first extrude and then limit the fixing rod 2002. The first elastic member 2003 is a tension spring and is initially in a stretched state, which is used to ensure the supporting area of the sliding rod 1903 on the adjacent round rod 1901.

[0071] When using this device to produce water-dispersible tablets, the staff first place the raw materials for water-dispersible tablets in the feeding device externally connected to the feeding shell 4, and then start the transmission device on the second support plate 5, the feeding device externally connected to the feeding shell 4, and the hydraulic push rod 8 through the numerical control table on the connecting frame 1. The transmission device on the second support plate 5 drives the second support plate 5 to move up and down. At the same time, the pushing device on the feeding shell 4 drives the feeding shell 4 to move back and forth to replenish the storage cavity composed of the slide rail 3 and the lower punch 10.

[0072] When the feeding shell 4 moves forward past the storage cavity composed of the slide rail 3 and the lower punch 10, the raw materials for water-dispersible tablets stored in the feeding shell 4 fall from the discharge hole of the feeding shell 4 into the storage cavity composed of the slide rail 3 and the lower punch 10 under the action of their own gravity. When the feeding shell 4 moves backward past the storage cavity composed of the slide rail 3 and the lower punch 10, the storage cavity composed of the slide rail 3 and the lower punch 10 is replenished with raw materials for water-dispersible tablets again.

[0073] After the feeding shell 4 moves backward to the initial position, the transmission device on the second support plate 5 drives the second support plate 5 to move downward. The downward movement of the second support plate 5 drives the first fixed cylinder 6 to move downward. The first fixed cylinder 6 drives the upper punch 7 and the first guide cylinder 12 to move downward. As the first guide cylinder 12 continuously moves downward, the two first limiting rods 13 respectively enter the adjacent straight chutes on the first guide cylinder 12. As the upper punch 7 continuously moves downward, the lower side surface of the upper punch 7 enters the through hole of the slide rail 3. At the same time, the lower punch 10 remains stationary under the limitation of the sliding rod 1903 on the adjacent round rod 1901. Subsequently, under the support of the raw materials for water-dispersible tablets in the slide rail 3 on the upper side surface of the lower punch 10, the upper punch 7 extrudes the raw materials for water-dispersible tablets in the storage cavity composed of the slide rail 3 and the lower punch 10. Finally, the upper punch 7 continues to move downward until the raw materials for water-dispersible tablets in the slide rail 3 are extruded into a predetermined thickness, completing the extrusion of one water-dispersible tablet. At the same time, the first limiting rod 13 slides to the uppermost end of the straight chute on the first guide cylinder 12.

[0074] When the second support plate 5 moves downward, the second support plate 5 drives the two extrusion frames 2001 to move downward. As the extrusion frames 2001 move downward, they gradually approach the adjacent fixed rods 2002. With the continuous downward movement of the second support plate 5, the extrusion frames 2001 first come into contact with the adjacent fixed rods 2002, and then the extrusion frames 2001 start to extrude the adjacent fixed rods 2002. The two fixed rods 2002 move away from each other under the extrusion force. The two fixed rods 2002 drive the adjacent sliding rods 1903 to move respectively, and at the same time, the two first elastic members 2003 are stretched. With the continuous downward movement of the two extrusion frames 2001, the two sliding rods 1903 move away from each other continuously until the aqueous dispersion tablet raw materials in the slide rail 3 are extruded into a predetermined thickness. At this time, the extrusion frames 2001 stop extruding the adjacent fixed rods 2002 and start to limit the adjacent fixed rods 2002 to ensure that the two sliding rods 1903 do not move towards each other. At the same time, the two sliding rods 1903 release the limit on the adjacent round rods 1901 respectively.

[0075] When the extrusion of one aqueous dispersion tablet is completed, the second support plate 5 continues to move downward under the drive of the transmission device thereon. The second support plate 5 drives the upper punch head 7 to move downward through the first fixed cylinder 6. The first limiting rod 13 slides into the inclined chute adjacent to the first guiding cylinder 12. The first limiting rod 13 continuously presses the inclined chute adjacent to the first guiding cylinder 12 to make the first guiding cylinder 12 rotate. The first guiding cylinder 12 drives the upper punch head 7 to rotate. At the same time, the first spiral torsion spring 11 twists and stores energy. By the rotation of the upper punch head 7, the contact mode between the aqueous dispersion tablet and the upper punch head 7 is changed, effectively reducing the adhesion phenomenon of the aqueous dispersion tablet raw materials on the upper punch head 7, and "polishing" the upper surface of the aqueous dispersion tablet to make the surface of the aqueous dispersion tablet smoother and flatter, improving the appearance quality of the aqueous dispersion tablet.

[0076] When the second support plate 5 continues to drive the upper punch head 7 to move downward through the first fixed cylinder 6, the upper punch head 7 extrudes the aqueous dispersion tablet downward into the through hole on the first support plate 2. The aqueous dispersion tablet presses the lower punch head 10, and the lower punch head 10 moves downward along the second fixed cylinder 9 under the extrusion force. At the same time, the second spiral torsion spring 14 is stretched. The lower punch head 10 drives the second guiding cylinder 15 to move downward. The guiding groove on the second guiding cylinder 15 comes into contact with the adjacent second limiting rod 16. Then the second limiting rod 16 continuously presses the adjacent guiding groove on the second guiding cylinder 15 to make the second guiding cylinder 15 rotate. The second guiding cylinder 15 drives the lower punch head 10 to rotate. At the same time, the second spiral torsion spring 14 rotates and stores energy. Through the reverse rotation of the upper punch head 7 and the lower punch head 10, the aqueous dispersion tablet remains stationary, and at the same time, the contact mode between the aqueous dispersion tablet and the upper punch head 7 and the lower punch head 10 is changed, effectively reducing the phenomenon that the aqueous dispersion tablet raw materials adhere to the upper punch head 7 and the lower punch head 10, resulting in pits on the aqueous dispersion tablet, and ensuring the production quality of the aqueous dispersion tablet.

[0077] When the first limiting rod 13 slides to the upper end of the adjacent inclined chute on the first guiding cylinder 12, the transmission device on the second support plate 5 starts to drive the second support plate 5 to move upward. The second support plate 5 drives the upper punch head 7 to move upward through the first fixed cylinder 6. The upper punch head 7 drives the first guiding cylinder 12 to move upward. Under the action of the elastic force of the first spiral torsion spring 11, the inclined chute on the first guiding cylinder 12 moves along the adjacent first limiting rod 13, that is, it starts to rotate in the reverse direction, and once again "polishes" the upper surface of the water-dispersible tablet, reducing the influence of the upper punch head 7 always rotating in one direction, which causes spiral lines to appear on the surface of the water-dispersible tablet.

[0078] When the first limiting rod 13 slides along the inclined chute on the first guiding cylinder 12 to the straight chute on the first guiding cylinder 12, the first guiding cylinder 12 stops rotating. At the same time, the first spiral torsion spring 11 resets. Subsequently, the upper punch head 7 is driven by the first fixed cylinder 6 to disengage from the through hole on the slide rail 3 and continue to move upward to reset. The first guiding cylinder 12 is driven by the upper punch head 7 to disengage from the contact with the two first limiting rods 13.

[0079] When the upper punch head 7 moves upward, the lower punch head 10 moves upward and resets along the second fixed cylinder 9 under the action of the elastic force of the second spiral torsion spring 14. The lower punch head 10 drives the two round rods 1901 and the second guiding cylinder 15 to move upward. Under the action of the elastic force of the second spiral torsion spring 14, the guiding groove on the second guiding cylinder 15 moves along the adjacent second limiting rod 16, that is, it starts to rotate in the reverse direction, and once again "polishes" the lower surface of the water-dispersible tablet to make its surface smoother.

[0080] When the second support plate 5 moves upward, the second support plate 5 drives the two extrusion frames 2001 to move upward. The extrusion frames 2001 gradually relieve the extrusion on the adjacent fixed rods 2002. The fixed rods 2002 gradually reset under the action of the elastic force of the adjacent first elastic members 2003. When the second limiting rod 16 disengages from the guiding groove on the second guiding cylinder 15, the extrusion frames 2001 relieve the limitation on the adjacent fixed rods 2002. The fixed rods 2002 complete the reset under the action of the elastic force of the adjacent first elastic members 2003. Subsequently, the hydraulic push rod 8 continues to drive the lower punch head 10 to move upward through the second fixed cylinder 9. The lower punch head 10 drives the water-dispersible tablet to move upward until the water-dispersible tablet is driven to disengage from the through hole of the slide rail 3, and at this time, the upper surface of the lower punch head 10 is flush with the upper surface of the through hole of the slide rail 3.

[0081] When the water-dispersible tablet detaches from the through-hole of the slide rail 3, the feeding shell 4 moves forward first under the drive of the pushing device thereon. The front side of the feeding shell 4 gradually approaches the water-dispersible tablet, and then the front side of the feeding shell 4 contacts the water-dispersible tablet and drives the water-dispersible tablet to move forward. The front side of the feeding shell 4 pushes the water-dispersible tablet onto the inclined plate fixedly connected to the front side of the slide rail 3, and the water-dispersible tablet slides down along the inclined plate fixedly connected to the front side of the slide rail 3 and is collected by the staff.

[0082] After the front side of the feeding shell 4 pushes the water-dispersible tablet away from the upper side of the lower punch 10, the hydraulic push rod 8 immediately drives the lower punch 10 to move downward through the second fixed cylinder 9 until the round rod 1901 contacts the adjacent sliding rod 1903, completing the reset of the lower punch 10. And during the reset process of the lower punch 10, the feeding shell 4 moves forward through the through-hole on the slide rail 3 and fills part of the water-dispersible tablet raw material into the through-hole of the slide rail 3.

[0083] After the front side of the feeding shell 4 pushes the water-dispersible tablet onto the inclined plate fixedly connected to the front side of the slide rail 3, the feeding shell 4 moves backward and resets under the drive of the pushing device thereon, and replenishes the water-dispersible tablet raw material to the storage cavity formed by the slide rail 3 and the lower punch 10 again on the way. The above actions are repeated subsequently until the production of the water-dispersible tablet is completed.

[0084] When stopping using this device to produce water-dispersible tablets, the staff closes the transmission device on the second support plate 5, the feeding device externally connected to the feeding shell 4, and the hydraulic push rod 8 through the numerical control platform on the connecting frame 1, and cleans this device.

[0085] Embodiment 2

[0086] Based on Embodiment 1, as Figure 5 、 Figure 7 and Figure 8 shown, it further includes: an extrusion component, arranged on the feeding shell 4, and the extrusion component is used to pre-extrude the raw material of the pesticide water-dispersible tablet. The extrusion component includes: a sliding plate 2101, slidably connected to the feeding shell 4, a limit pin 2201 is fixedly connected to the feeding shell 4, the extrusion rod 2102 is provided with an inclined surface, and the limit pin 2201 is used to extrude the inclined surface of the extrusion rod 2102; an extrusion rod 2102, slidably connected to the sliding plate 2101; a first elastic member is fixedly connected between the extrusion rod 2102 and the sliding plate 2101, and a second elastic member 2103 is fixedly connected between the sliding plate 2101 and the feeding shell 4.

[0087] In the above solution, the lower end of the extrusion rod 2102 is set as a hemispherical surface, which is used to ensure that the sliding plate 2101 can pull the extrusion rod 2102 out of the through hole of the slide rail 3. The diameter of the hemispherical surface at the lower end of the extrusion rod 2102 is smaller than the inner diameter of the through hole of the slide rail 3. A conical notch is provided at the hemispherical surface of the extrusion rod 2102, which is used to shape the water-dispersible tablet raw material when extruding the water-dispersible tablet raw material in the through hole of the slide rail 3. The first elastic member is a spring and is initially in a compressed state, which is used to generate a downward extrusion force on the extrusion rod 2102. The limit pin 2201 is used to move the inclined surface of the extrusion rod 2102 up and down under the extrusion of the limit pin 2201. The inclined surface of the extrusion rod 2102 is located in the upper part of the extrusion rod 2102. The front end of the limit pin 2201 is set as a hemispherical surface, which can limit the inclined surface of the extrusion rod 2102 while reducing the contact area with the inclined surface of the extrusion rod 2102, thereby reducing the wear between the limit pin 2201 and the inclined surface of the extrusion rod 2102. The second elastic member 2103 is a tension spring and is initially in a stretched state, which is used to ensure that the sliding plate 2101 remains stationary relative to the feeding shell 4. The number of the second elastic members 2103 is two, which are respectively located on both sides of the sliding plate 2101, and are used to ensure that the sliding plate 2101 does not deviate left and right when sliding along the feeding shell 4.

[0088] As Figures 7-10 shown, it further includes: a stagnation component, which is arranged on the slide rail 3 and is used to make the extrusion rod 2102 stay at the through hole of the slide rail 3 when the feeding shell 4 slides. The stagnation component includes: a third limit rod 2301, which is fixedly connected to the sliding plate 2101; a first n-shaped frame 2302, which is fixedly connected to the slide rail 3. A rotating block 2303 is rotatably connected to the first n-shaped frame 2302. The third limit rod 2301 is used to extrude the rotating block 2303; a limit plate 2401, which is slidably connected to the first n-shaped frame 2302, and the limit plate 2401 is used to limit the rotating block 2303; a second limit component, which is arranged on the first n-shaped frame 2302, and the second limit component is used to limit the movement of the sliding plate 2101.

[0089] In the above solution, the right side surface of the third limit rod 2301 and the right side surface of the rotating block 2303 are located on the same vertical plane, which is used to ensure the largest contact area between the third limit rod 2301 and the rotating block 2303 and avoid the phenomenon of stress concentration at the rotation part of the rotating block 2303. The limit plate 2401 is made of a hard material, such as carbon steel, which is used to ensure that the limit plate 2401 is not easily deformed under the extrusion of the rotating block 2303. The second elastic member is a spring.

[0090] As Figures 7-11As shown in the figure, the second limiting component includes: a second n-shaped frame 2402 fixedly connected to the slide rail 3. A sliding frame 2403 is slidably connected to the second n-shaped frame 2402. A second elastic member is fixedly connected between the limiting plate 2401 and the first n-shaped frame 2302. An L-shaped plate 2601 is fixedly connected to the second n-shaped frame 2402. A third elastic member 2602 is fixedly connected between the sliding frame 2403 and the L-shaped plate 2601. A rope 2404 is fixedly connected between the limiting plate 2401 and the sliding frame 2403. Guide frames 2405 are fixedly connected to both the first n-shaped frame 2302 and the second n-shaped frame 2402, and both guide frames 2405 are used to limit the rope 2404. An arched block 2406 is fixedly connected to the feeding shell 4, and the arched block 2406 is used to squeeze the sliding frame 2403.

[0091] In the above solution, the sliding frame 2403 is composed of a sliding block and an L-shaped rod. The rope 2404 is made of a smooth material, such as aramid. The guide frame 2405 is made of a smooth material as a whole, such as stainless steel, to reduce the friction coefficient between the guide frame 2405 and the rope 2404. The L-shaped plate 2601 is made of a hard material, such as carbon steel, and has a certain anti-deformation ability. The third elastic member 2602 is a spring.

[0092] When using this device to produce water-dispersible tablets, repeat the action of the feeding shell 4 moving forward in the first embodiment. The feeding shell 4 drives the sliding plate 2101 to move forward through the second elastic member 2103. The sliding plate 2101 drives the extrusion rod 2102 and the third limiting rod 2301 to move forward. The third limiting rod 2301 moves forward and contacts the rotating block 2303. Subsequently, the third limiting rod 2301 squeezes the rotating block 2303, and the rotating block 2303 swings forward under the extrusion, allowing the third limiting rod 2301 to pass through.

[0093] The forward movement of the feeding shell 4 drives the arched block 2406 to move forward. The arched block 2406 moves forward and contacts the L-shaped rod of the sliding frame 2403. Subsequently, the arched block 2406 squeezes the L-shaped rod of the sliding frame 2403, causing the sliding frame 2403 to slide upward. At the same time, the third elastic member 2602 is compressed. The upward sliding of the sliding frame 2403 drives the limiting plate 2401 to slide upward through the rope 2404. At the same time, the second elastic member is compressed, releasing the limit on the rotating block 2303. When the arched block 2406 continues to slide forward, the extrusion on the L-shaped rod of the sliding frame 2403 is released. The sliding frame 2403 resets under the drive of the elastic force of the third elastic member 2602. The limiting plate 2401 slides downward and resets under the action of the elastic force of the second elastic member, and tightens the rope 2404.

[0094] After the front side of the feeding shell 4 pushes the water-dispersible tablets onto the inclined plate fixedly connected to the front side of the slide rail 3, repeat the action of the feeding shell 4 moving backward in the first embodiment. The feeding shell 4 drives the third limiting rod 2301 to move backward. When the third limiting rod 2301 moves backward and contacts the rotating block 2303, the rotating block 2303 remains stationary under the limitation of the limiting plate 2401. The rotating block 2303 squeezes the third limiting rod 2301 to keep the third limiting rod 2301 stationary. The third limiting rod 2301 drives the sliding plate 2101 and the parts thereon to move forward relative to the feeding shell 4. At the same time, the two second elastic members 2103 are stretched. At this time, the axis of the extrusion rod 2102 coincides with the axis of the through hole of the slide rail 3. The forward movement of the sliding plate 2101 relative to the limit pin 2201 gradually releases the extrusion of the inclined surface of the extrusion rod 2102 by the limit pin 2201. The extrusion rod 2102 slides downward under the action of the elastic force of the first elastic member. The lower side surface of the extrusion rod 2102 extrudes the water-dispersible tablet raw material in the through hole of the slide rail 3. Due to the conical notch on the lower side surface of the extrusion rod 2102, the water-dispersible tablet raw material in the upper part of the through hole of the slide rail 3 is extruded into a conical shape. When the water-dispersible tablet raw material in the through hole of the slide rail 3 is subsequently extruded by the upper punch head 7, the punch head 7 first gradually extrudes the top of the conical water-dispersible tablet raw material in the through hole of the slide rail 3, and there are still a large number of gaps around. At this time, the gas in the through hole of the slide rail 3 can be discharged along the gaps around, and finally a cylindrical shape is formed. By pre-extruding the water-dispersible tablet raw material in the through hole of the slide rail 3 by the extrusion rod 2102 and changing the shape of the water-dispersible tablet raw material in the through hole of the slide rail 3, it effectively reduces the problem that when the upper punch head 7 extrudes the water-dispersible tablet raw material in the through hole of the slide rail 3, the gas carries part of the water-dispersible tablet raw material and runs out of the through hole of the slide rail 3 due to the gas mixed in the gaps between the water-dispersible tablet raw materials in the through hole of the slide rail 3, ensuring the amount of each water-dispersible tablet.

[0095] As the feeding shell 4 continues to move backward, the feeding shell 4 drives the arched block 2406 to move backward and contact the L-shaped rod of the sliding frame 2403. Subsequently, the arched block 2406 squeezes the L-shaped rod of the sliding frame 2403, causing the sliding frame 2403 to slide upward. At the same time, the third elastic member 2602 is compressed. The upward sliding of the sliding frame 2403 drives the limiting plate 2401 to slide upward through the rope 2404, releasing the limit on the rotating block 2303. The rotating block 2303 releases the extrusion on the third limiting rod 2301. Subsequently, the sliding plate 2101 moves backward and resets relative to the feeding shell 4 under the action of the elastic force of the two second elastic members 2103. The sliding plate 2101 drives the extrusion rod 2102 and the third limiting rod 2301 to move backward. The lower end of the extrusion rod 2102 is pulled by the sliding plate 2101 to disengage its hemispherical surface from the through hole of the slide rail 3. The extrusion rod 2102 moves backward. The inclined surface of the extrusion rod 2102 is squeezed by the limit pin 2201, causing the extrusion rod 2102 to move upward and reset. The third limiting rod 2301 moves backward and squeezes the rotating block 2303, causing the rotating block 2303 to swing backward. Subsequently, the third limiting rod 2301 passes through the rotating block 2303, and the rotating block 2303 swings and resets under the action of its own gravity.

[0096] When the feeding shell 4 drives the arched block 2406 to continue sliding backward, the extrusion on the L-shaped rod of the sliding frame 2403 is released. The sliding frame 2403 resets under the drive of the elastic force of the third elastic member 2602. The limiting plate 2401 slides downward and resets under the action of the elastic force of the second elastic member, and tightens the rope 2404.

[0097] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A tablet press for producing water-dispersible pesticide tablets, characterized in that: include: A connecting frame (1), the connecting frame (1) being fixedly connected to a first supporting plate (2); The slide rail (3) is fixedly connected to the first support plate (2); the first support plate (2) and the slide rail (3) are respectively provided with a through hole and a through hole, and the two are connected; the slide rail (3) is slidably connected to a feeding shell (4); A second support plate (5) is slidably connected to the connecting frame (1); the second support plate (5) is fixedly connected to a first fixed cylinder (6); the first fixed cylinder (6) is rotatably connected to an upper punch head (7); A hydraulic push rod (8) is fixedly connected to the connecting frame (1), the telescopic end of the hydraulic push rod (8) is fixedly connected to a second fixed cylinder (9), the second fixed cylinder (9) is slidably and rotatably connected to a lower punch head (10), and the axis of the upper punch head (7), the axis of the through hole of the first support plate (2), the axis of the through hole of the slide rail (3) and the axis of the lower punch head (10) all coincide with each other; A first transmission mechanism, disposed on the upper punch head (7), and used to drive the upper punch head (7) to rotate; The second transmission mechanism is arranged on the lower punch head (10) and is used to drive the lower punch head (10) to move up and down and rotate.

2. A tablet press for producing water-dispersible pesticide tablets according to claim 1, characterized in that: The first transmission mechanism comprises: A first helical torsion spring (11) fixedly connected between the first fixing cylinder (6) and the upper punch head (7); A first guide cylinder (12) is fixedly connected to the upper punch head (7), the first guide cylinder (12) is provided with a guide groove, and the second support plate (5) is fixedly connected to a first limit rod (13), the first limit rod (13) is used to control the rotation of the first guide cylinder (12) through the guide groove of the first guide cylinder (12).

3. A tablet press for producing water-dispersible pesticide tablets according to claim 2, characterized in that: The second transmission mechanism comprises: a second helical torsion spring (14) fixedly connected between the second fixing cylinder (9) and the lower punch head (10); A second guide cylinder (15) is fixedly connected to the lower punch head (10), the second guide cylinder (15) is provided with a guide groove, the connecting frame (1) is fixedly connected with a second limiting rod (16), the second limiting rod (16) is used to control the rotation of the second guide cylinder (15) through the guide groove of the second guide cylinder (15); The first limiting component is arranged at the lower part of the lower punch head (10) and is used to ensure the degree of compression of the pesticide water-dispersible tablet.

4. A tablet press for producing water-dispersible pesticide tablets according to claim 3, characterized in that: The first limiting component comprises: A round rod (1901) fixedly connected to the lower punch head (10); A fixed plate (1902) is fixedly connected to the connecting frame (1); the fixed plate (1902) is slidably connected to a sliding rod (1903); the sliding rod (1903) is used to limit the position of the round rod (1901); An unlocking component is arranged on the sliding rod (1903) and is used to release the limit of the sliding rod (1903) when the extrusion of the pesticide water-dispersible tablet is completed.

5. A tablet press for producing water-dispersible pesticide tablets according to claim 4, characterized in that: The unlocking component comprises: An extrusion frame (2001) is fixedly connected to the second support plate (5), and the extrusion frame (2001) is slidably connected to the first support plate (2); A fixed rod (2002) is fixedly connected to the sliding rod (1903), and the extrusion frame (2001) is used to extrude and limit the fixed rod (2002); The first elastic member (2003) is fixedly connected between the fixed plate (1902) and the sliding rod (1903).

6. A tablet press for producing water-dispersible pesticide tablets according to claim 1, characterized in that: Also includes: An extrusion component is arranged on the feeding shell (4), and is used to pre-extrude the raw material of the pesticide water-dispersible tablet. The extrusion component comprises: A sliding plate (2101) slidably connected to the feeding shell (4); An extrusion rod (2102) slidably connected to the sliding plate (2101); A first elastic member is fixedly connected between the extrusion rod (2102) and the sliding plate (2101), and a second elastic member (2103) is fixedly connected between the sliding plate (2101) and the feeding shell (4).

7. A tablet press for producing water-dispersible pesticide tablets according to claim 6, characterized in that: The feeding shell (4) is fixedly connected to a limit pin (2201); the extrusion rod (2102) is provided with an inclined surface; the limit pin (2201) is used to squeeze the inclined surface of the extrusion rod (2102).

8. A tablet press for producing water-dispersible pesticide tablets according to claim 6, characterized in that: Also includes: A stagnation component is arranged on the slide rail (3) and is used to make the extrusion rod (2102) stay at the through hole of the slide rail (3) when the feeding shell (4) slides. The stagnation component comprises: A third limiting rod (2301) is fixedly connected to the sliding plate (2101); A first n-shaped frame (2302) is fixedly connected to the slide rail (3); the first n-shaped frame (2302) is rotatably connected to a rotating block (2303); and the third limiting rod (2301) is used to squeeze the rotating block (2303); A limiting plate (2401) is slidably connected to the first n-shaped frame (2302), and the limiting plate (2401) is used to limit the rotating block (2303); A second limiting component is arranged on the first n-shaped frame (2302), and the second limiting component is used to limit the movement of the sliding plate (2101).

9. A tablet press for producing water-dispersible pesticide tablets according to claim 8, characterized in that: The second limiting component includes: A second n-shaped frame (2402) is fixedly connected to the slide rail (3); the second n-shaped frame (2402) is slidably connected to a sliding frame (2403); a rope (2404) is fixedly connected between the limit plate (2401) and the sliding frame (2403); The first n-shaped frame (2302) and the second n-shaped frame (2402) are both fixedly connected with a guide frame (2405), and the two guide frames (2405) are both used to limit the rope (2404); The arch block (2406) is fixedly connected to the feeding shell (4), and the arch block (2406) is used to press the sliding frame (2403).

10. A tablet press for producing water-dispersible pesticide tablets according to claim 9, characterized in that: A second elastic member is fixedly connected between the limit plate (2401) and the first n-shaped frame (2302), an L-shaped plate (2601) is fixedly connected to the second n-shaped frame (2402), and a third elastic member (2602) is fixedly connected between the sliding frame (2403) and the L-shaped plate (2601).

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