Plaster production equipment and plaster production method

Abstract

The invention discloses plaster production equipment and a plaster production method. Comprising a bottom paper conveying mechanism, a surface paper conveying mechanism, a lifting base used for supporting bottom paper to be processed, a fixed sleeve arranged over the lifting base in a suspended mode, a material injection pipe used for conveying plaster medicine into the fixed sleeve, a pressing disc mechanism used for taking and placing surface paper, an air pump connected with the pressing disc mechanism and a pressing disc driving mechanism. According to the plaster production equipment and the plaster production method provided by the invention, plaster production can be realized by adopting one station, the equipment structure and the manufacturing process are simplified, the pollution of plaster medicament can be reduced or avoided, and the flowing boundary of the plaster medicament can be limited in the manufacturing process, so that the production efficiency of the plaster medicament is improved. And the plaster medicament is arranged in a reasonable area and can be formed at one time, so that the process is further simplified, and the material waste is avoided.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of plaster patch production and manufacturing, and particularly relates to a plaster patch production device and a plaster patch production method. BACKGROUND

[0002] Plaster is an important external dosage form of traditional Chinese medicine external treatment method, and the plaster medicament is wrapped between the bottom paper layer (bottom paper) and the surface paper layer (surface paper).

[0003] With the development of production technology, the production of plaster has developed from manual production to machine production, improving the production efficiency.

[0004] However, in the prior art, the equipment and process for machine production of plaster are carried out in multiple stations, specifically, the plaster medicament or plaster medicament (fluid medicament) is dropped on the bottom paper layer at one station, then the bottom paper layer is moved to the next station, then the surface paper layer is pasted on the bottom paper layer and wrapped around the plaster medicament, and then the semi-finished plaster is moved to a forming station for pressing forming, and finally cut into a plaster patch by a cutting mechanism.

[0005] For example, the Chinese utility model patent with the authorization announcement number CN208828923U discloses an automatic plaster production equipment, the bottom paper is held by a bottom paper supporting plate, the material is first dropped on the bottom paper by a material injection mechanism, then the surface paper and the bottom paper are clamped and wrapped with the plaster medicament by a tension roller, a reversing roller and the like, and then pressed into a mold forming mechanism for forming, and then cut by a cutting mechanism.

[0006] The defects in the prior art are: 1. Multiple stations are required for production operation, and the production steps are complicated.

[0007] 2. After the plaster medicament is dropped on the bottom paper, it needs to be transported to the surface paper supporting roller side in the external environment before being wrapped by the surface paper, and is completely exposed, which has the risk of being contaminated.

[0008] 3. In the process of clamping the surface paper and the bottom paper, a pair of clamping rollers is used to clamp the surface paper and the bottom paper, and the flow boundary of the plaster medicament cannot be limited, and the plaster medicament may become irregular between the surface paper and the bottom paper, for example, the edge of the plaster medicament protrudes outward at some place, even beyond the reasonable boundary, affecting the reasonable layout of the plaster medicament. SUMMARY

[0009] The purpose of this invention is to overcome the shortcomings of the prior art and provide a plaster production equipment and a plaster production method. The plaster can be produced in one station, which simplifies the equipment structure and manufacturing process, and can reduce or avoid contamination of the plaster agent. In addition, the flow boundary of the plaster agent can be restricted during the production process, so that the plaster agent is placed in a reasonable area and formed in one step, which further simplifies the process and avoids material waste.

[0010] The present invention provides a plaster production equipment, including a base paper conveying mechanism, a face paper conveying mechanism, a lifting base for supporting the base paper to be processed, a fixed sleeve suspended directly above the lifting base, an injection pipe for conveying plaster medicine into the fixed sleeve, a pressure plate mechanism for picking up and putting in the face paper, and an air pump and pressure plate drive mechanism connected to the pressure plate mechanism. When the injection tube delivers the plaster to the fixed sleeve, the lifting base lifts up carrying the bottom paper and blocks the lower opening of the fixed sleeve; The pressure plate drive mechanism can drive the pressure plate mechanism to switch positions between the fixed sleeve and the paper feeding mechanism, and can drive the pressure plate mechanism to lift and lower within the fixed sleeve. The bottom surface of the pressure plate mechanism is provided with a paper picking and placing pressure plate. The paper picking and placing pressure plate is provided with a plurality of ventilation holes that communicate with the air pump at intervals. The air pump is used to draw or deliver air to achieve adsorption or release of paper. The paper feeding and dispensing pressure plate is equipped with telescopic top pins and telescopic cutters around its four edges; When the pressure plate mechanism descends into position in the fixed sleeve, the face paper presses onto the plaster medicine below, and the four edges of the face paper are pressed tightly against the bottom paper below by the telescopic top pin; When the telescopic top pin is compressed into place, the lower blade of the telescopic cutter falls on the periphery of the face paper and cuts downwards.

[0011] In one of the alternative technical solutions, the telescopic top pin includes an inner top pin and an outer top pin, the inner top pin being used to limit the boundaries that the plaster agent can reach, and the outer top pin being used to press down the four edges of the face paper; The telescopic cutter slides through the outer top pin so that the lower edge of the telescopic cutter lands on the indentation of the outer top pin on the face paper.

[0012] In one of the alternative technical solutions, the pressure plate mechanism includes an upper pressure plate seat, a lower pressure plate seat slidably connected to the upper pressure plate seat, and a first elastic element connected between the lower pressure plate seat and the upper pressure plate seat; The upper pressure plate is provided with a central air duct, and the lower pressure plate is provided with an air cavity communicating with the central air duct. The paper feeding and dispensing pressure plate is located at the bottom of the air cavity. When the first elastic element is compressed and the lower and upper pressure plates move closer to each other, the paper-taking and placing pressure plate provides cushioning while flattening the plaster medicine below.

[0013] In one of the alternative technical solutions, the upper part of the pressure plate is provided with a ventilation opening connecting the central air duct and the air cavity, and the middle part of the air cavity is provided with an upwardly extending wedge-shaped plug; When the first elastic element is in its initial state, the wedge-shaped plug moves away from the vent and uses suction to adsorb the face paper onto the bottom surface of the face paper pick-up and drop pressure plate. When the first elastic element is compressed by a preset distance, the wedge-shaped plug is inserted into the vent and a preset gap is left, allowing a small amount of air to blow into the air cavity to help the face paper detach from the face paper pick-and-place pressure plate.

[0014] In one of the alternative technical solutions, the lower side wall of the pressure plate seat is provided with a side wall cavity, and the telescopic cutter is slidably installed in the side wall cavity and can extend from the bottom of the side wall cavity; The sidewall cavity can communicate with the central air duct and / or the ventilation opening; Before the first elastic element is compressed by a predetermined distance, the sidewall cavity is disconnected from the central air duct and / or the vent. When the first elastic element is compressed by a preset distance, the side wall cavity is connected to the central air duct and / or the vent, and a large amount of air enters the side wall cavity to press down the telescopic cutter.

[0015] In one of the optional technical solutions, the upper pressure plate seat is provided with a branch air duct that communicates with the central air duct and / or the ventilation port, and the air outlet of the branch air duct is located on the outer surface of the upper side wall of the upper pressure plate seat. The lower seat sidewall is slidably connected to the outside of the upper seat sidewall; The inner surface of the lower seat sidewall is provided with a cavity opening that can communicate with the air outlet of the air duct. Before the first elastic element is compressed by a preset distance, the cavity opening is separated from the air duct outlet, and the air duct outlet is sealed by the inner surface of the lower seat sidewall. When the first elastic element is compressed by a preset distance, the cavity opening connects with the air outlet of the air duct.

[0016] In one of the alternative technical solutions, the cavity wall of the sidewall cavity is provided with an upper limit plate and a lower limit plate; The outer top pin of the telescopic top pin is slidably disposed in the side wall cavity, and the outer top pin has a top pin channel for the telescopic cutter to pass through. The upper end of the outer top pin is connected to a top pin end plate, which is slidably mounted between the lower limit plate and the upper limit plate. A second elastic element is connected between the top pin end plate and the bottom of the side wall cavity. The upper end of the telescopic cutter is connected to a cutter end plate, which is slidably mounted between the top pin end plate and the upper limit plate. A third elastic element is connected between the top pin end plate and the cutter end plate. The lower end of the telescopic cutter is inserted into the top pin channel. When the top pin end plate rests on the lower limit plate and the third elastic element is compressed, the lower blade can extend from the lower end of the top pin channel.

[0017] In one of the alternative technical solutions, the injection pipe includes a horizontal material pipe and a vertical material pipe connected to the outlet end of the horizontal material pipe; The transverse feed tube can slide through the wall of the fixed sleeve, and the vertical feed tube is located inside the fixed sleeve and extends downward; A material tube drive mechanism is connected between the wall of the fixed sleeve and the transverse material tube, which is used to drive the transverse material tube to extend and retract relative to the fixed sleeve. The inner surface of the fixing sleeve is provided with a clearance groove; When the injection tube is in working condition, the tube drive mechanism drives the horizontal tube to move the vertical tube to the center of the fixed sleeve; When the injection tube is in a non-working state, the tube drive mechanism pulls the horizontal tube, causing the vertical tube to move into the clearance groove.

[0018] In one of the alternative technical solutions, the pressure plate drive mechanism includes a suspended turntable, a drive motor for driving the turntable to rotate, and a piston for driving the lifting and lowering operation of the pressure plate mechanism; Multiple sets of pressure plate mechanisms are evenly distributed below the turntable, and each set of pressure plate mechanisms is connected to the turntable through a set of pistons; The pressure plate mechanism can pass above the paper feeding mechanism and the fixed sleeve as the turntable rotates.

[0019] The present invention also provides a method for producing medicated plasters, which uses the medicated plaster production equipment described in any of the foregoing technical solutions, and includes the following steps: S1: The lifting base lifts up the bottom paper and seals the lower opening of the fixing sleeve; S2: A predetermined amount of plaster is delivered into the fixed sleeve using the injection tube, and the plaster falls onto the base paper below; S3: The pressure plate driving mechanism drives the pressure plate mechanism to move to the face paper conveying mechanism, the fan starts the ventilation operation, and the face paper pick-up and drop plate picks up a face paper. S4: The pressure plate driving mechanism drives the pressure plate mechanism to move above the fixed sleeve; S5: The pressure plate driving mechanism drives the pressure plate mechanism to move downward into place in the fixed sleeve, and the face paper presses on the plaster medicine below; The four edges of the face paper are pressed tightly against the bottom paper below by the telescopic top pin; When the telescopic top pin is compressed into place, the lower blade of the telescopic cutter falls on the periphery of the face paper and cuts downwards; S6: The fan starts to supply air, and the face paper is separated from the face paper pick-and-place plate; S7: The pressure plate drive mechanism drives the pressure plate mechanism to rise away from the fixed sleeve, and the lifting base carries the completed plaster down to reset; S8: A plaster has been made.

[0020] The above technical solution has the following beneficial effects: The plaster production equipment and method provided by this invention include a base paper conveying mechanism and a face paper conveying mechanism. A lifting base is positioned on the path of the base paper conveying mechanism to lift the base paper and seal the lower opening of the fixing sleeve. An injection tube is used to inject plaster medicine into the fixing sleeve. A pressing plate mechanism picks up the face paper from the face paper conveying mechanism, extends into the fixing sleeve, presses the face paper onto the base paper, and encloses the plaster medicine.

[0021] The bottom surface of the pressing plate mechanism is a paper-receiving and dispensing plate with multiple ventilation holes. When the air pump draws in air, the paper-receiving and dispensing plate picks up / absorbs the paper. When the air pump delivers air, the plate releases the paper. The four edges of the plate are equipped with telescopic pins and telescopic cutters. When pressing the paper onto the base paper, the telescopic pins first press against the edge of the paper, causing the edge to bulge downwards, thus ensuring it is pressed firmly against the edge of the base paper first, limiting the flow of the plaster. After the paper is pressed into place, the thickness of the plaster in the middle is approximately the same as the edge thickness. Then, the lower blade of the telescopic cutter cuts along the four edges of the paper downwards, completing the plaster application. The lifting base descends with the plaster, and the base paper conveying mechanism pulls or tractions the base paper to continue moving, carrying the plaster away.

[0022] Therefore, the plaster production equipment and method provided by the present invention can realize the production of plasters with one station, which simplifies the equipment structure and manufacturing process, reduces or avoids the contamination of plaster agents, and can restrict the flow boundary of plaster agents during the production process, so that the plaster agents are laid in a reasonable area and formed in one step, further simplifying the process and avoiding material waste. Attached Figure Description

[0023] The disclosure of this invention will become more readily understood by referring to the accompanying drawings. It should be understood that these drawings are for illustrative purposes only and are not intended to limit the scope of protection of this invention. In the drawings: Figure 1 This is a cross-sectional diagram of a medicated plaster. Figure 2 This is a top view of the base paper; Figure 3 A top view of a paper strip with multiple face sheets attached; Figure 4 for Figure 3 A sectional view along direction AA; Figure 5 This is a schematic diagram of a plaster production equipment provided in an embodiment of the present invention; Figure 6 This is a schematic diagram of the tissue paper conveying mechanism; Figure 7 for Figure 6 A cross-sectional view along the BB direction; Figure 8 A cross-sectional view of the assembled lifting base, fixing sleeve, and injection pipe; Figure 9 A cross-sectional view of the assembled pressure plate mechanism, air pump, and pressure plate drive mechanism; Figure 10 This is a cross-sectional view of the pressure plate mechanism; Figure 11 A schematic diagram showing how the lifting base, carrying the bottom paper, rises to block the lower opening of the fixing sleeve; Figure 12 This is a schematic diagram of the injection tube injecting the plaster into the base paper; Figure 13 A schematic diagram showing the bottom of the pressure plate mechanism adsorbing the face paper to allow the injection tube to move laterally, preparing it to fall into the fixed sleeve. Figure 14 This is a schematic diagram of the pressing mechanism when the fixed sleeve moves down and the face paper presses onto the plaster medicine; Figure 15 This is a schematic diagram showing the pressing mechanism pressing the edge of the face paper against the back paper and flattening the plaster as the fixed sleeve continues to move downwards; Figure 16This is a diagram showing the process of the pressing plate mechanism moving upward and resetting after the plaster is made, and the lifting base carrying the plaster falling downward. Figure 17 This is a schematic diagram of the paper-taking and placing platen of the pressure plate mechanism adsorbing the paper when the air pump is drawing or sucking air. Figure 18 This is a schematic diagram showing the pressing mechanism moving downwards in the fixed sleeve, with the face paper reaching above the plaster medicine. Figure 19 This is a schematic diagram showing the pressing plate mechanism continuing to move downwards in the fixed sleeve, with the paper-taking and placing plate pressing the paper onto the plaster. Figure 20 This is a schematic diagram showing the plaster after the medicine has been compressed to a certain degree of thinness, where there is still a certain gap between the edge of the face paper and the back paper. Figure 21 To continue pressing down the pressure plate mechanism, the lower seat of the pressure plate moves upward to buffer, where the plaster is flattened to a preset degree, filling the space between the edge of the paper and the backing paper; Figure 22 A schematic diagram showing the air pump supplying or blowing air, the paper take-up and put-out pressure plate releasing the paper, and the telescopic cutter extending downwards using air pressure. Figure 23 Exploded view of the outer top pin and telescopic cutter; Figure 24 This is a schematic diagram showing the telescopic top pin and telescopic cutter in their initial state. Figure 25 This is a schematic diagram showing the outer and inner top pins pressing down against the edges of the face paper when the face paper is held in place by the face paper pick-up and put-out pressure plate. Figure 26 This is a schematic diagram showing the outer and inner top pins pressing against the edge of the face paper and retracting upwards during the downward movement of the pressure plate mechanism. Figure 27 This is a schematic diagram of the telescopic cutter being pressed down using wind pressure. Detailed Implementation

[0024] The specific embodiments of the present invention will be further described below with reference to the accompanying drawings. Identical components are indicated by the same reference numerals. It should be noted that the terms "front," "rear," "left," "right," "up," and "down" used in the following description refer to directions in the accompanying drawings, while the terms "inner" and "outer" refer to directions toward or away from the geometric center of a specific component, respectively.

[0025] like Figures 1-27As shown, an embodiment of the present invention provides a plaster production equipment, including a base paper conveying mechanism 1, a face paper conveying mechanism 2, a lifting base 3 for supporting the base paper 101 to be processed, a fixed sleeve 4 suspended directly above the lifting base 3, an injection pipe 5 for conveying plaster medicine 103 into the fixed sleeve 4, a pressure plate mechanism 6 for picking up and putting on the face paper 102, and an air pump 7 and a pressure plate drive mechanism 8 connected to the pressure plate mechanism 6.

[0026] When the injection tube 5 delivers the plaster agent 103 into the fixed sleeve 4, the lifting base 3 lifts up carrying the bottom paper 101 and blocks the lower opening of the fixed sleeve 4.

[0027] The pressure plate drive mechanism 8 can drive the pressure plate mechanism 6 to switch positions between the fixed sleeve 4 and the paper feeding mechanism 2, and can drive the pressure plate mechanism 6 to lift and lower within the fixed sleeve 4.

[0028] The bottom surface of the pressure plate mechanism 6 is provided with a paper picking and placing pressure plate 623. The paper picking and placing pressure plate 623 is provided with a plurality of ventilation holes 623a that communicate with the air pump 7 at intervals. The air pump 7 is used to draw or deliver air to achieve adsorption or release of paper 102.

[0029] The paper feeding and dispensing pressure plate 623 is provided with telescopic top pins 64 and telescopic cutters 65 around its four edges.

[0030] When the pressing plate mechanism 6 descends into position in the fixed sleeve 4, the face paper 102 presses on the plaster medicine 103 below, and the four edges of the face paper 102 are pressed tightly against the bottom paper 101 below by the telescopic top pin 64.

[0031] When the telescopic top pin 64 is compressed into place, the lower blade 651 of the telescopic cutter 65 falls on the periphery of the face paper 102 and cuts downwards.

[0032] The plaster production equipment provided by this invention is mainly used to manufacture plaster patches 100. For example... Figures 1-4 As shown, the completed plaster 100 includes a base paper 101, a face paper 102, and a plaster agent 103. The plaster agent 103 is wrapped by the base paper 101 and the face paper 102. During the production of the plaster 100, the plaster agent 103 is in a fluid state, viscous, and has a certain degree of fluidity.

[0033] like Figure 2 As shown, before the plaster patch 100 is cut and shaped, the backing paper 101 is in the shape of a strip or band. After cutting, the shape of the backing paper 101 attached to the bottom is basically the same as that of the face paper 102.

[0034] like Figures 3-4As shown, the face paper 102 is pre-formed into the desired shape, such as a circle or rectangle, and is pasted at intervals on a long strip of paper 1021 so that it can be conveyed by the face paper conveying mechanism 2, thereby achieving continuous supply of face paper 102.

[0035] The base paper 101 can be made of non-woven fabric, spunlace fabric, etc., which is breathable and easy to cut. The face paper 102 is a release paper, which can be made of glassine paper, PE coated paper, PET plastic film, etc.

[0036] When injecting the plaster agent 103 into the base paper 101, a layer of highly viscous medical pressure-sensitive adhesive is first applied to the base paper 101, and then the plaster agent 103 is injected or spread onto the adhesive layer. Then, the face paper 102 is pressed onto the plaster agent 103. The edges of the face paper 102 are pressed together with the base paper 101. Because the adhesive strength is much greater than the release force of the face paper 102, the edges of the face paper 102 adhere to the base paper 102, sealing the plaster agent 103. Of course, the main body of the face paper 102 will be adhered to the plaster agent 103. Since the face paper 102 uses release paper, it is convenient to peel off the plaster agent 103 later.

[0037] The plaster production equipment provided by the present invention includes a base paper conveying mechanism 1, a face paper conveying mechanism 2, a lifting base 3, a fixed sleeve 4, a material injection pipe 5, a pressure plate mechanism 6, an air pump 7, a pressure plate driving mechanism 8, and a mixing cylinder 9, etc.

[0038] The bottom paper conveying mechanism 1 includes a first driving roller 11 and a first driven roller 12. The bottom paper 101 is wound around the bottom paper roller (not shown) and positioned on one side of the first driven roller 12. The other end of the bottom paper 101 passes through a series of tension rollers (not shown) and the first driven roller 12 before being wound around the first driving roller 11. A lifting base 3 is positioned between the first driven roller 12 and the first driving roller 11; therefore, the bottom paper 101 passes through the lifting base 3. A fixing sleeve 4 is mounted above the lifting base 3 via a bracket or the like.

[0039] The width of the base paper 101 is greater than the width of the fixed sleeve 4. Therefore, even after the face paper 102 and the base paper 101 are cut in the fixed sleeve 4 to form the plaster 100, only a portion of the lower base paper 101 is cut. The cut portion of the lower base paper 101 forms a base paper hole (e.g., a circular hole, a rectangular hole, etc.). The two edges of the base paper 101 along the width direction are not cut and can still be pulled by the first active roller 11. Furthermore, during the pulling of the base paper 101, the base paper portion of the cut and formed plaster 100 is located in the cut and formed base paper hole, which can also cause the plaster 100 to move towards the first active roller 11 along with the pulled base paper 101 to disengage from the lifting base 3. In this way, an inclined guide plate and a hopper can be arranged on the side of the lifting base 3 near the first active roller 11 to receive the plaster 100 falling from the lifting base 3.

[0040] The face paper conveying mechanism 2 includes a second driving roller 21, a second driven roller 22, and an operating table 23, which is arranged between the second driving roller 21 and the second driven roller 22. A paper strip 1021 pre-formed with face paper 102 is wound around a paper strip roller (not shown in the figure) and arranged on one side of the second driven roller 22. The other end of the paper strip 1021 passes through a series of tension rollers (not shown in the figure) and the second driven roller 22 before being wound around the second driving roller 21.

[0041] The top surface of the operating table 23 has a guide groove 231 for the paper tape 1021 to pass through. The guide groove 231 is provided with lifting pressure plates 241 on both sides along the width direction, which are driven to move up and down by pressure plate cylinders / oil cylinders 24.

[0042] When the pressing mechanism 6 needs to pick up a sheet of paper 102 from the paper tape 1021 on the operating table 23, the second drive roller 21 stops, and the two lifting pressure plates 241 fall down to press down on both sides of the paper tape 1021. The pressing mechanism 6 descends to absorb a sheet of paper 102, and then the pressing mechanism 6 moves up, and the sheet of paper 102 is sucked by the pressing mechanism 6 and detached from the paper tape 1021 below, and is carried away by the pressing mechanism 6. The lifting pressure plates 241 rise again, and the second drive roller 21 can operate to move the next sheet of paper 102 to the predetermined station on the operating table 23.

[0043] The lifting base 3 is arranged on the path of the bottom paper conveying mechanism 1, and the lifting base 3 is driven to move up and down by the base cylinder / oil cylinder 31.

[0044] Under normal conditions, the lifting base 3 is in a lowered state, a certain distance away from the lower opening of the fixed sleeve 4. When it is necessary to make the plaster patch 100, the first active roller 11 stops, the lifting base 3 rises, and moves the bottom paper 101 above it upwards to seal the lower opening of the fixed sleeve 4.

[0045] After the plaster patch 100 is made, the lifting base 3 descends, the first active roller 11 operates to move the next section of the base paper 101 to the bottom of the fixed sleeve 4, and then the first active roller 11 stops.

[0046] The first active roller 11 and the second active roller 21 can be driven by a stepper motor or a servo motor for easy control.

[0047] The electrical components in this invention can be centrally controlled by a control system, which can be a computer, etc., and will not be described in detail here.

[0048] The fixed sleeve 4 is fixedly installed above the lifting base 3 using brackets or the like, which is the work station for making plaster patches 100.

[0049] The injection tube 5 is used to inject the plaster agent 103 into the fixed sleeve 4. The injection tube 5 can be driven by a drive mechanism to enter and exit the fixed sleeve 4 from the upper end, or a through hole can be opened in the side wall of the fixed sleeve 4 for the injection tube 5 to enter and exit. The injection tube 5 is connected to the mixing cylinder 9 through the pipe 91. The plaster agent 103 is stirred in the mixing cylinder 9. A metering pump 92 is configured on the pipe 91 to deliver a metered amount of plaster agent 103 into the injection tube 5. Both the mixing cylinder 9 and the plaster agent 103 can be designed with heat preservation, such as being covered with an insulation layer, to slow down the solidification of the plaster agent 103.

[0050] After the lifting base 3 rises and, carrying the bottom paper 101 above it, seals the lower opening of the fixing sleeve 4, the end of the injection tube 5 extends into the fixing sleeve 4. The metering pump 92 is activated, and the injection tube 5 injects a metered amount of plaster 103 into the fixing sleeve 4. Then, the tube 5 withdraws from the fixing sleeve 4 to avoid affecting the descent of the pressure plate mechanism 6. The plaster 103 lands on the bottom paper 101 at the lower opening of the fixing sleeve 4, approximately in the middle of the bottom paper 101. Figure 12 As shown, the plaster agent 103 is thicker in the middle and thinner at the edges at this time.

[0051] The pressing plate mechanism 6 is driven to move by the pressing plate drive mechanism 8. It can pick up the face paper 102 from the face paper conveying mechanism 2, then move it directly above the fixed sleeve 4, and then move it down into the fixed sleeve 4 to press the face paper 102 onto the bottom paper 101, wrapping the plaster agent 103 and flattening the plaster agent 103.

[0052] Air pump 7 is a dual-function air pump, capable of both suction and delivery of air. Air pump 7 is connected to pressure plate mechanism 6 via air pipe 71.

[0053] The air pump 7 is used on one hand to draw or suck air from the pressure plate mechanism 6 so that the pressure plate mechanism 6 can adhere to the face paper 102. On the other hand, the air pump 7 is used to supply / blow air to the pressure plate mechanism 6 to help the face paper 102 detach from the pressure plate mechanism 6.

[0054] The bottom surface of the pressure plate mechanism 6 is a paper pick-and-place pressure plate 623, which is equipped with multiple ventilation holes 623a. When the air pump 7 draws in air, the paper pick-and-place pressure plate 623 can pick up / absorb the paper 102. When the air pump 7 delivers air, the paper pick-and-place pressure plate 623 can release the paper 102.

[0055] Telescopic pins 64 are provided around the perimeter of the paper-taking and placing pressure plate 623. The telescopic pins 64 can be annular pins adapted to the perimeter of the paper-taking and placing pressure plate 623. The annular pins can be integrally designed or composed of multiple plate-shaped pins. The telescopic pins 64 can be driven by a pin-driving mechanism, such as a hydraulic cylinder or a pneumatic cylinder, or by an elastic element, such as a spring or a spring sheet. The telescopic pins 64 are used to press down and seal the perimeter of the paper 102 and restrict the flow boundary of the plaster agent 103.

[0056] like Figures 19-20 As shown, when the tissue paper pick-up and drop-off plate 623 picks up the tissue paper 102, most of the middle part of the tissue paper 102 is attached to the bottom surface of the tissue paper pick-up and drop-off plate 623, while its four edges are held in place by the telescopic top pin 64, and the four edges of the tissue paper 102 are lower than its middle part. When moving towards the base paper 101, the middle concave part of the tissue paper 102 is just wrapped around the plaster agent 103, and the four edges of the tissue paper 102 are closer to the base paper 101, so that it can be pressed onto the base paper 101 earlier, thereby sealing the four edges of the tissue paper 102.

[0057] As the pressing plate mechanism 6 continues to press down, the telescopic top pin 64 begins to retract under the reaction force, and the paper-taking and placing pressure plate 623 will be closer to the bottom paper 101, thereby pressing the plaster 103 thinner and flatter, and the edges of the plaster 103 are restricted, naturally forming the desired shape.

[0058] Telescopic cutters 65 are also provided around the perimeter of the paper feeding and dispensing pressure plate 623. The telescopic cutters 65 can pass through the telescopic top pin 64 or be positioned outside the telescopic top pin 64. The telescopic cutters 65 can be annular cutters adapted to the perimeter of the paper feeding and dispensing pressure plate 623. The annular cutter can be a single integrated design or composed of multiple separate cutters. The telescopic cutters 65 can be driven by a cutter driving mechanism, such as a hydraulic cylinder or pneumatic cylinder, or by an elastic element, such as a spring or spring sheet.

[0059] like Figures 21-22 As shown, after the face paper 102 is pressed down into place, the thickness of the middle of the plaster 103 is roughly the same as the thickness of the edge. Then, the lower blade 651 of the telescopic cutter 65 is used to cut along the four edges of the face paper 102 and downwards. After the cutting is completed, the plaster patch 100 is made.

[0060] Air pump 7 starts blowing or delivering air into pressure plate mechanism 6. The air blows downward through multiple ventilation holes 623a, thereby assisting in separating the face paper 102 from the face paper pick-and-place pressure plate 623.

[0061] Then, the lifting base 3 lowers with the plaster 100, and the bottom paper conveying mechanism 1 pulls or tractions the bottom paper 101 to continue moving, and the plaster 100 is moved away by the moving bottom paper 101. If needed, a worker can be assigned to pick up the cut plaster 100 near the lifting base 3. If full automation is required, a robotic arm can be assigned near the lifting base 3 to automatically pick up the cut plaster 100.

[0062] Therefore, the plaster production equipment provided by the present invention can produce plaster 100 with only one station, which simplifies the equipment structure and manufacturing process, and can reduce or avoid contamination of plaster agent 103. In addition, the flow boundary of plaster agent 103 can be restricted during the production process, so that plaster agent 103 is arranged in a reasonable area and can be formed in one step, further simplifying the process and avoiding material waste.

[0063] In one embodiment, such as Figures 23-27 As shown, the telescopic top pin 64 includes an inner top pin 641 and an outer top pin 642. The inner top pin 641 is used to limit the boundaries that the plaster agent 103 can reach, and the outer top pin 642 is used to press down the four edges of the face paper 102.

[0064] The telescopic cutter 65 slides through the outer top pin 642 so that the lower blade 651 of the telescopic cutter 65 lands on the indentation of the paper 102 on the outer top pin 642.

[0065] In this embodiment, the telescopic top pin 64 is divided into an inner top pin 641 and an outer top pin 642. The outer top pin 642 is located at the periphery of the face paper 102 and is used to press down the periphery of the face paper 102. The inner top pin 641 is located inside the outer top pin 642 and is used to limit the boundary that the plaster agent 103 can reach. There is basically no plaster agent 103 between the outer top pin 642 and the inner top pin 641. The portion of the face paper 102 between the outer top pin 642 and the inner top pin 641 is directly attached to the backing paper 101. After tearing off the face paper 102, a sufficient adhesive area for the backing paper 101 can be left.

[0066] In this embodiment, the outer top pin 642 has a top pin channel 642a for the telescopic cutter 65 to pass through. The telescopic cutter 65 slides through the outer top pin 642 so that the lower end of the telescopic cutter lands on the indentation of the outer top pin 642 on the face paper 102. Due to the pressing action of the outer top pin 642 on the face paper 102, the face paper 102 and the back paper 101 are most firmly bonded at the indentation, making it easier to cut the back paper 101 from the indentation.

[0067] After the telescopic cutter 65 cuts the backing paper 101 along the indentation of the outer top pin 642 on the front paper 102, a certain annular gap will exist between the four edges of the cut backing paper 101 and the plaster 103. This annular gap is approximately the distance between the outer top pin 642 and the inner top pin 641, for example, between 50mm and 2cm. When the user tears off the front paper 102, the annular gap between the backing paper 101 and the plaster 103 is used to adhere to the skin.

[0068] In one embodiment, such as Figure 10 , Figures 17-22 As shown, the pressure plate mechanism 6 includes an upper pressure plate seat 61, a lower pressure plate seat 62 slidably connected to the upper pressure plate seat 61, and a first elastic element 63 connected between the lower pressure plate seat 62 and the upper pressure plate seat 61.

[0069] The upper pressure plate seat 61 is provided with a central air duct 611, and the lower pressure plate seat 62 is provided with an air cavity 622 that communicates with the central air duct 611. The paper taking and putting pressure plate 623 is located at the bottom of the air cavity 622.

[0070] When the first elastic element 63 is compressed and the lower pressure plate 62 and the upper pressure plate 61 move closer to each other, the paper-taking and placing pressure plate 623 provides cushioning while flattening the plaster medicine 103 below.

[0071] In this embodiment, the pressure plate mechanism 6 includes an upper pressure plate seat 61, a lower pressure plate seat 62, and a first elastic element 63.

[0072] The upper pressure plate seat 61 is connected to the pressure plate drive mechanism 8. The lower pressure plate seat 62 is slidably connected to the upper pressure plate seat 61, and the two can slide relative to each other. The first elastic element 63 can be a spring, sheet, etc., which is connected between the lower pressure plate seat 62 and the upper pressure plate seat 61 to support the lower pressure plate seat 62 relative to the upper pressure plate seat 61.

[0073] The upper seat of the pressure plate 61 is provided with a central air duct 611, and one end of the air pipe 71 is connected to the central air duct 611.

[0074] The lower seat 62 of the pressure plate is provided with an air cavity 622. The side of the air cavity 622 is surrounded by the side wall 621 of the lower seat. The top of the air cavity 622 is connected to the central air duct 611. The paper taking and putting pressure plate 623 is located at the bottom of the air cavity 622. The ventilation hole 623a is connected to the air cavity 622. The air pump 7 can draw air from the ventilation hole 623a, or supply or blow air to the ventilation hole 623a.

[0075] like Figure 19 As shown, the pressing plate mechanism 6 descends along arrow F, and the face paper 102 on the bottom surface of the face paper taking and placing pressing plate 623 begins to press onto the plaster agent 103 in the middle of the bottom paper 101.

[0076] like Figure 20 As shown, the pressing mechanism 6 continues to descend along arrow F. The paper-taking and placing pressing plate 623 carries the paper 102 and presses down the plaster agent 103, pressing the plaster agent 103 outwards or flattening it. At this time, the plaster agent 103 has become relatively flat compared to before, but its edges have not yet reached the boundary, and there is still a gap 103a between it and the edges of the paper 102.

[0077] Since the plaster agent 103 has become relatively thin at this time, the distance between the paper-taking and placing pressure plate 623 and the lifting base 3 is already close. If the plaster agent 103 is pressed down further, the reaction force of the lifting base 3 and the pressure of the paper-taking and placing pressure plate 623 will both act on the plaster agent 103 without buffering. As a result, the plaster agent 103 will move faster in all directions and may break through the constraint of the elastic top pin 64 and overflow.

[0078] like Figure 21 As shown, during the process of continuing to move the pressure plate mechanism 6 downward, the reaction force of the lifting base 3 will overcome the force of the first elastic element 63, and the first elastic element 63 will be compressed. The lower pressure plate seat 62 moves upward relative to the upper pressure plate seat 61 along arrow J, providing a certain buffer for flattening the plaster 103. The four edges of the plaster 103 can reach the limited position of the inner top pin 641 relatively slowly without overflowing.

[0079] To improve accuracy, several position sensors can be pre-installed on the wall of the fixed sleeve 4. The position sensors are matched with the preset thickness of the plaster 103 at each stage to monitor the downward position of the pressure plate mechanism 6. In the final pressing step, the pressing speed of the pressure plate mechanism 6 can be reduced.

[0080] In one embodiment, such as Figure 10 , Figures 17-22 As shown, the upper part of the pressure plate 61 is provided with a ventilation opening 612 that connects the central air duct 611 and the air cavity 622, and the middle part of the air cavity 622 is provided with an upwardly extending wedge-shaped plug 624.

[0081] When the first elastic element 63 is in its initial state, the wedge-shaped plug 624 leaves the vent 612 and uses suction to adsorb the tissue paper 102 onto the bottom surface of the tissue paper pick-up and drop plate 623.

[0082] When the first elastic element 63 is compressed by a preset distance, the wedge-shaped plug 624 is inserted into the vent 612 and a preset gap 612a is reserved, allowing a small amount of air to blow into the air cavity 622 to help the face paper 102 detach from the face paper pick-and-place pressure plate 623.

[0083] In this embodiment, in order to prevent the air blown out of the ventilation hole 623a from being too strong when the auxiliary paper 102 is detached from the paper pick-up and drop plate 623, which would cause the paper 102 to detach too quickly and break, the present invention uses a wedge-shaped plug 624 to block part of the ventilation opening 612 to reduce the amount of air entering the air cavity 622.

[0084] Specifically, a vent 612 is provided in the middle of the pressure plate seat 61, which connects the central air duct 611 and the air cavity 622. The vent 612 is preferably a cylindrical through hole. A wedge-shaped plug 624 extending upward is provided in the middle of the air cavity 622. The cross-section of the wedge-shaped plug 624 is wider at the bottom and narrower at the top. The upper end of the wedge-shaped plug 624 is smaller than the size of the vent 612. After the upper end of the wedge-shaped plug 624 is inserted into the vent 612, a preset gap 612a is formed between the upper periphery of the wedge-shaped plug 624 and the wall surface of the vent 612. This preset gap 612a allows a small amount of air to blow into the air cavity 622 and then blow towards the ventilation hole 623a to help the face paper 102 detach from the face paper pick-up and drop plate 623.

[0085] Under normal conditions, the first elastic element 63 props the lower pressure plate 62 apart from the upper pressure plate 61, and the wedge-shaped plug 624 moves away from the vent 612. When the air pump 7 draws air from the pressure plate mechanism 6, the vent 612 is fully open to ensure that more air can be drawn from the vent 623a from the bottom surface of the paper 102 adsorbed onto the paper tamper plate 623.

[0086] When the first elastic element 63 is compressed by a preset distance, such as Figure 21 As shown, the upper end of the wedge-shaped plug 624 is inserted into the vent 612. The preset distance at which the first elastic element 63 is compressed can be limited by existing limiting structures, which will not be described in detail here.

[0087] like Figure 21 As shown, a preset gap 612a is formed between the upper periphery of the wedge-shaped plug 624 and the wall of the vent 612.

[0088] like Figure 22 As shown, when the air pump 7 blows or delivers air, a large amount of gas enters the central air duct 611 along arrow K, and a small amount of gas enters the air chamber 622 along arrow K1 through the preset gap 612a, and then disperses to each ventilation hole 623a, blowing the face paper 102 downward along arrow K2, so that the face paper 102 can be slowly separated from the face paper pick-and-place plate 623, avoiding the face paper 102 from breaking during the separation process.

[0089] In one embodiment, such as Figure 10 , Figures 17-22As shown, the lower side wall 621 of the pressure plate lower seat 62 is provided with a side wall cavity 621a, and the telescopic cutter 65 is slidably installed in the side wall cavity 621a and can extend from the bottom of the side wall cavity 621a.

[0090] The side wall cavity 621a can communicate with the central air duct 611 and / or the vent 612.

[0091] Before the first elastic element 63 is compressed a predetermined distance, the side wall cavity 621a is disconnected from the central air duct 611 and / or the vent 612.

[0092] When the first elastic element 63 is compressed by a preset distance, the side wall cavity 621a is connected to the central air duct 611 and / or the vent 612, and a large amount of air enters the side wall cavity 621a to press down the telescopic cutter 65.

[0093] In this embodiment, the excess air volume from the air pump 7 during blowing / supplying is used to press down the telescopic cutter 65, so as to make full use of the air volume and also reduce the drive mechanism of the telescopic cutter 65.

[0094] Specifically, the lower seat side wall 621 is provided with a side wall cavity 621a, the bottom of which has an opening for the telescopic cutter 65 to pass through downwards, and a sealing ring is provided in the opening to prevent air leakage.

[0095] The telescopic cutter 65 is installed in the side wall cavity 621a and can slide up and down in the side wall cavity 621a. The telescopic cutter 65 is actuated by a third elastic element 653, which drives the telescopic cutter 65 to move upward so that its lower end blade 651 is retracted in the side wall cavity 621a or in the opening at its bottom.

[0096] The side wall cavity 621a can be connected to the central air duct 611 and / or the vent 612 through a connecting channel, and a valve can be installed in the connecting channel to control its opening and closing, thereby controlling whether air is supplied to the side wall cavity 621a.

[0097] In the initial state, the first elastic element 63 props the lower pressure plate 62 apart from the upper pressure plate 61. Before the first elastic element 63 is compressed a preset distance, the side wall cavity 621a is disconnected from the central air duct 611 and / or the vent 612. When the air pump 7 draws in or exhausts air, it only draws in air from the vent 623a to hold the tissue paper 102 in place.

[0098] like Figures 21-22As shown, when the first elastic element 63 is compressed by a preset distance, the side wall cavity 621a is connected to the central air duct 611 and / or vent 612. The air pump 7 delivers or blows air, and a large amount of air enters the side wall cavity 621a, overcoming the force of the third elastic element 653. The air pressure is used to press down the telescopic cutter 65, causing the lower blade 651 to quickly extend downward to cut the face paper 102 and the back paper 101. The air pressure can be set according to the needs of cutting the face paper 102 and the back paper 101.

[0099] In one embodiment, such as Figure 10 , Figures 17-22 As shown, the upper pressure plate seat 61 is provided with a branch air duct 613 that communicates with the central air duct 611 and / or the ventilation port 612. The air outlet 613a of the branch air duct 613 is located on the outer surface of the upper side wall 614 of the upper pressure plate seat 61.

[0100] The lower seat sidewall 621 is slidably connected to the outside of the upper seat sidewall 614.

[0101] The inner surface of the lower seat side wall 621 is provided with a cavity opening 621b that can communicate with the air outlet 613a of the air duct.

[0102] Before the first elastic element 63 is compressed by a predetermined distance, the cavity opening 621b separates from the air duct outlet 613a, and the air duct outlet 613a is sealed by the inner surface of the lower seat side wall 621.

[0103] When the first elastic element 63 is compressed by a preset distance, the cavity opening 621b is connected to the air outlet 613a of the air duct.

[0104] In this embodiment, by designing the branch air duct 613, the opening and closing of the pressure plate lower seat 62 can be automatically controlled according to its up and down movement, eliminating the need to set up a separate valve.

[0105] Specifically, the pressure plate upper seat 61 has downwardly extending upper seat sidewalls 614 around its perimeter, and a lower seat sidewall 621 is slidably connected to the outside of the upper seat sidewall 614. A cavity is provided in the upper seat sidewall 614 and / or the lower seat sidewall 621 for mounting a first elastic element 63. The first elastic element 63 is connected between the upper seat sidewall 614 and the lower seat sidewall 621.

[0106] The upper pressure plate seat 61 is provided with a laterally extending branch air duct 613. The air inlet of the branch air duct 613 is connected to the central air duct 611 and / or the ventilation port 612, preferably connected to the ventilation port 612. The air outlet 613a of the branch air duct 613 is located on the outer surface of the side wall 614 of the upper pressure plate seat.

[0107] The inner surface of the lower seat side wall 621 is provided with a cavity opening 621b, which is the air inlet of the side wall cavity 621a, and can be connected or disconnected from the air outlet 613a of the air duct as the lower seat side wall 621 slides up and down.

[0108] like Figures 17-20 As shown, in the initial state, the first elastic element 63 expands the lower pressure plate seat 62 relative to the upper pressure plate seat 61. Before the first elastic element 63 is compressed by a preset distance, the cavity opening 621b leaves the air duct outlet 613a, and the cavity opening 621b is below the air duct outlet 613a. At this time, the air duct outlet 613a is sealed by the inner surface of the lower seat side wall 621, and the cavity opening 621b is sealed by the outer surface of the upper seat side wall 614.

[0109] like Figures 21-22 As shown, when the pressure plate lower seat 62 slides upward a preset distance, that is, when the first elastic element 63 is compressed a preset distance, the cavity opening 621b moves upward along with the lower seat side wall 621 and connects with the air duct outlet 613a. When the air pump 7 blows or delivers air, most of the gas enters the branch air duct 613 and moves along arrow K3, and then enters the side wall cavity 621a and moves along arrow K4, thereby pressing down the telescopic cutter 65.

[0110] In one embodiment, such as Figures 23-27 As shown, the cavity wall of the sidewall cavity 621a is provided with an upper limit plate 621c and a lower limit plate 621d.

[0111] The outer top pin 642 of the telescopic top pin 64 is slidably disposed in the side wall cavity 621a, and the outer top pin 642 has a top pin channel 642a for the telescopic cutter 65 to pass through.

[0112] The upper end of the outer top pin 642 is connected to a top pin end plate 642b, which is slidably mounted between the lower limit plate 621d and the upper limit plate 621c. A second elastic element 642c is connected between the top pin end plate 642b and the bottom of the side wall cavity 621a.

[0113] The upper end of the telescopic cutter 65 is connected to a cutter end plate 652, which is slidably mounted between the top pin end plate 642b and the upper limit plate 621c. A third elastic element 653 is connected between the top pin end plate 642b and the cutter end plate 652.

[0114] The lower end of the telescopic cutter 65 is inserted into the top pin channel 642a. When the top pin end plate 642b rests on the lower limit plate 621d and the third elastic element 653 is compressed, the lower blade 651 can extend out from the lower end of the top pin channel 642a.

[0115] In this embodiment, the outer top pin 642 is also fitted in the side wall cavity 621a, which has a top pin channel 642a for the telescopic cutter 65 to pass through, so that its lower blade 651 falls on the indentation of the outer top pin 642 on the paper 102.

[0116] Specifically, the side wall cavity 621a is provided with an upper limit plate 621c and a lower limit plate 621d, which are fixedly connected to the cavity wall of the side wall cavity 621a.

[0117] The upper end of the outer top pin 642 is connected to a top pin end plate 642b, which is assembled between the lower limit plate 621d and the upper limit plate 621c. A second elastic element 642c is connected between the top pin end plate 642b and the bottom of the side wall cavity 621a, for driving the outer top pin 642 to extend downward. Figure 24 As shown, under normal conditions, the top pin end plate 642b is blocked by the lower limit plate 621d, indicating that the outer top pin 642 has extended to its maximum length.

[0118] The upper end of the telescopic cutter 65 is connected to a cutter end plate 652, which is positioned above the top pin end plate 642b and below the upper limit plate 621c. A third elastic element 653 is connected between the top pin end plate 642b and the cutter end plate 652 to drive the telescopic cutter 65 to retract upwards. Figure 24 As shown, under normal conditions, the third elastic element 653 supports the cutter end plate 652 upwards so that the lower blade 651 is housed in the top pin channel 642a.

[0119] like Figures 25-26 As shown, when the outer top pin 642 is retracted upwards, the telescopic cutter 65 retracts upwards synchronously with the outer top pin 642 until the cutter end plate 652 is restricted by the upper limit plate 621c. During this process, the lower blade 651 of the cutter end plate 652 remains contained within the top pin channel 642a.

[0120] like Figure 27 As shown, when air is supplied or blown into the side wall cavity 621a, under the action of air pressure, the cutter end plate 652 overcomes the force of the third elastic element 653 and moves downward, while simultaneously causing the top pin end plate 642b to move downward. When the outer top pin 642 is held stationary, the telescopic cutter 65 continues to move downward, so that the lower blade 651 extends from the lower end of the top pin channel 642a, thereby cutting the face paper 102 and the back paper 101. Figure 27 The image only shows a part of the process of the lower blade 651 cutting into the base paper 101, and does not mean that the lower blade 651 will not cut the base paper 101.

[0121] When the outer top pin 642 is held in place, it can be that the lower end of the outer top pin 642 is held in place, and the top pin end plate 642b is a distance away from the lower limit plate 621d, or the top pin end plate 642b falls on the lower limit plate 621d.

[0122] In one embodiment, such as Figure 24 As shown, a mounting groove is provided at the bottom of the side wall cavity 621a on the lower seat side wall 621. The inner top pin 641 is slidably installed in the mounting groove and can extend from the lower end of the mounting groove. An upper end plate 642 is connected to the upper end of the inner top pin 641. A fourth elastic element 643 is connected between the upper end plate 642 and the bottom wall of the mounting groove for driving the inner top pin 641 to extend downward.

[0123] In one embodiment, such as Figure 8 and Figures 11-13 As shown, the injection pipe 5 includes a horizontal material pipe 51 and a vertical material pipe 52 connected to the outlet end of the horizontal material pipe 51.

[0124] The horizontal feed tube 51 can slide through the wall of the fixed sleeve 4, and the vertical feed tube 52 is inside the fixed sleeve 4 and extends downward.

[0125] A material tube drive mechanism 53 is connected between the wall of the fixed sleeve 4 and the transverse material tube 51, which is used to drive the transverse material tube 51 to extend and retract relative to the fixed sleeve 4.

[0126] The inner surface of the fixed sleeve 4 is provided with a clearance groove 41.

[0127] When the injection tube 5 is in working condition, the tube drive mechanism 53 drives the horizontal tube 51 to move the vertical tube 52 to the center of the fixed sleeve 4.

[0128] When the injection tube 5 is not in operation, the tube drive mechanism 53 pulls the horizontal tube 51 and drives the vertical tube 52 to move into the clearance groove 41.

[0129] In this embodiment, the injection tube 5 is L-shaped and includes a horizontal tube 51 and a vertical tube 52. The horizontal tube 51 passes through the wall of the fixed sleeve 4 and is slidable. A sealing ring is provided between the horizontal tube 51 and the hole wall to achieve a seal. The vertical tube 52 is located inside the fixed sleeve 4 and extends downward for injecting the plaster agent 103 downward.

[0130] The inner surface of the fixed sleeve 4 is provided with a relief groove 41 to accommodate the vertical material tube 52 so as not to affect the sliding of the pressure plate mechanism 6 in the fixed sleeve 4.

[0131] A material tube drive mechanism 53, such as a piston, is provided on the outside of the fixed sleeve 4. It is used to drive the horizontal material tube 51 to extend and retract relative to the fixed sleeve 4, thereby driving the vertical material tube 52 to extend to the central area of ​​the fixed sleeve 4, or driving the vertical material tube 52 into the clearance groove 41.

[0132] like Figure 11 As shown, after the lifting base 3 lifts up carrying the bottom paper 101 to block the lower opening of the fixed sleeve 4, the material tube drive mechanism 53 pushes the horizontal material tube 51, so that the vertical material tube 52 extends to the center area of ​​the fixed sleeve 4.

[0133] like Figure 12 As shown, the horizontal feed tube 51 begins to inject material along arrow D, and the plaster agent 103 drips from the vertical feed tube 52, thus landing in the central area of ​​the base paper 101, which is thicker in the middle and thinner around the edges.

[0134] like Figure 13 As shown, before the pressure plate drive mechanism 8 drives the pressure plate mechanism 6 to press down into the fixed sleeve 4, the material tube drive mechanism 53 pulls the horizontal material tube 51, so that the vertical material tube 52 enters the clearance groove 41.

[0135] like Figures 14-15 As shown, the pressure plate drive mechanism 8 drives the pressure plate mechanism 6 to press down into the fixed sleeve 4 along arrow F, and pass through the clearance groove 41.

[0136] In one embodiment, such as Figure 5 and Figure 9 As shown, the pressure plate drive mechanism 8 includes a suspended turntable 81, a drive motor 82 for driving the turntable 81 to rotate, and a piston 83 for driving the lifting and lowering operation of the pressure plate mechanism 6.

[0137] Multiple pressure plate mechanisms 6 are evenly distributed below the turntable 81, and each pressure plate mechanism 6 is connected to the turntable 81 through a piston 83.

[0138] The pressing mechanism 6 can pass above the paper conveying mechanism 2 and the fixed sleeve 4 as the turntable 81 rotates.

[0139] In this embodiment, the pressure plate drive mechanism 8 includes a suspended turntable 81, a drive motor 82, and a piston 83, etc.

[0140] The turntable 81 is suspended below the fixed structure via the pivot shaft 84. The fixed structure can be a hoisting bracket, a top adjustment tool, etc.

[0141] A drive motor 82 is used to drive the turntable 81 to rotate. The drive motor 82 can be a servo motor or a stepper motor for easy control. The drive motor 82 is mounted on one side of the pivot shaft 84 and connected to the pivot shaft 84 via a transmission gear set. The driving gear 86 of the transmission gear set is mounted on the motor shaft of the drive motor 82, and the driven gear 85 of the transmission gear set is mounted on the pivot shaft 84; the two mesh together for transmission. The radius of the driving gear 86 is smaller than the radius of the driven gear 85, thus serving a speed reduction function.

[0142] Multiple pressure plate mechanisms 6 are evenly distributed below the turntable 81. An air pump 7 is installed on the top surface of the turntable 81, and each pressure plate mechanism 6 is equipped with one air pump 7. Each pressure plate mechanism 6 is matched with a piston 83, which can be either a pneumatic cylinder or a hydraulic cylinder.

[0143] The cylinder of piston 83 is mounted on the top surface of turntable 81, and its piston rod extends upward. A guide sleeve 7 is disposed inside each piston rod, passing through turntable 81. The upper end of the piston rod is connected to the upper end of the guide sleeve 7 via a connecting rod, and the lower end of the guide sleeve 7 is connected to the pressure plate mechanism 6, specifically to the upper pressure plate seat 61. The central hole of the guide sleeve 7 communicates with the central air duct 611. Air pipe 71 can pass through the central hole of the guide sleeve 7 to connect to the central air duct 611, or it can be directly connected to the upper end of the guide sleeve 7 to achieve ventilation.

[0144] Normally, the piston rod of piston 83 pushes upward, positioning the pressure plate mechanism 6 above the fixed sleeve 4. The turntable 81 is driven to rotate, allowing the pressure plate mechanism 6 to rotate above the operating table 23. Then, the piston rod of piston 83 descends, and the pressure plate mechanism 6 rests on the operating table 23. The air pump 7 activates, drawing air, and the pressure plate mechanism 6 uses the tissue paper pick-and-place plate 623 to pick up a sheet of tissue paper 102. The piston rod of piston 83 then rises, lifting the pressure plate mechanism 6 away from the operating table 23. The turntable 81 continues to rotate until the pressure plate mechanism 6 rotates above the fixed sleeve 4. Then, the piston rod of piston 83 descends, pressing the pressure plate mechanism 6 into the fixed sleeve 4.

[0145] The lifting range or distance of the piston rod at each stage can be controlled according to a preset size and monitored by a position sensor. This is existing technology and will not be elaborated here.

[0146] The operating table 23 and the fixed sleeve 4 are arranged on opposite sides of the pivot shaft 84. Two sets of pressing mechanisms 6 are arranged at the bottom of the turntable 81, facing each other, with the transverse line between them parallel to a diameter of the turntable 81. Thus, when one set of pressing mechanisms 6 is above the fixed sleeve 4, the other set of pressing mechanisms 6 is above the operating table 23. When the first set of pressing mechanisms 6 is pressing down on the fixed sleeve 4, the second set of pressing mechanisms 6 can absorb the face paper 102 on the operating table 23 for subsequent operations.

[0147] Combination Figures 1-27 As shown, an embodiment of the present invention provides a method for producing medicated plasters, which uses the medicated plaster production equipment described in any of the foregoing technical embodiments, and includes the following steps: S1: The lifting base 3 lifts up carrying the bottom paper 101 and seals the lower opening of the fixing sleeve 4.

[0148] S2: A predetermined amount of plaster agent 103 is conveyed into the fixed sleeve 4 using the injection tube 5, and the plaster agent 103 falls onto the bottom paper 101 below.

[0149] S3: The pressure plate drive mechanism 8 drives the pressure plate mechanism 6 to move to the face paper conveying mechanism 2, the fan 7 starts the ventilation operation, and the face paper pick-up and drop plate 623 adsorbs and picks up a face paper 102.

[0150] S4: The pressure plate drive mechanism 8 drives the pressure plate mechanism 6 to move above the fixed sleeve 4.

[0151] S5: The pressure plate drive mechanism 8 drives the pressure plate mechanism 6 to move downward into place in the fixed sleeve 4, and the face paper 102 presses on the plaster medicine 103 below.

[0152] The four edges of the face paper 102 are pressed tightly against the bottom paper 101 below by the telescopic top pin 64.

[0153] When the telescopic top pin 64 is compressed into place, the lower blade 651 of the telescopic cutter 65 falls on the periphery of the face paper 102 and cuts downwards.

[0154] S6: The blower 7 starts to supply air, and the face paper 102 is separated from the face paper pick-and-place plate 623.

[0155] S7: The pressure plate drive mechanism 8 drives the pressure plate mechanism 6 to rise away from the fixed sleeve 4, and the lifting base 3 carries the completed plaster 100 down to reset.

[0156] S8: 100 plasters have been made.

[0157] Therefore, the present invention provides a method for producing plaster patches, which can produce plaster patches 100 in one workstation, simplifying the equipment structure and manufacturing process, and reducing or avoiding contamination of plaster agent 103. In addition, the flow boundary of plaster agent 103 can be restricted during the production process, so that plaster agent 103 is arranged in a reasonable area and can be formed in one step, further simplifying the process and avoiding material waste.

[0158] The production method for manufacturing plaster 100 using plaster production equipment is as follows: like Figure 11As shown, the lifting base 3 rises upward along arrow C, causing the bottom paper 102 to seal the lower opening of the fixed sleeve 4. The injection tube 5 is driven by the tube drive mechanism 53, causing its vertical tube 52 to move to the center of the fixed sleeve 4.

[0159] like Figure 12 As shown, the metering pump 92 is turned on, and the plaster agent 103 is delivered to the injection pipe 5 along the arrow D. The plaster agent 103 falls onto the bottom paper 101 below through the vertical material pipe 52, and is thick in the middle and thin around the edges.

[0160] like Figure 5 and Figure 13 As shown, the pressure plate drive mechanism 8 drives the turntable 81 to rotate, and the pressure plate mechanism 6 rotates to above the operating table 23 of the face paper conveying mechanism 2, at which point the turntable 81 stops rotating. The piston 83 drives the pressure plate mechanism 6 to descend onto the operating table 23. The fan 7 starts the ventilation operation, and a face paper 102 is picked up by the face paper pick-up and drop plate 623. The piston 83 drives the pressure plate mechanism 6 to rise and leave the operating table 23.

[0161] Turntable 81 continues to rotate, driving the pressure plate mechanism 6 to rotate directly above the fixed sleeve 4.

[0162] The material tube drive mechanism 53 pulls the injection tube 5 along arrow E, causing the vertical material tube 52 to move into the clearance groove 41.

[0163] like Figures 14-15 and Figures 18-21 As shown, piston 83 drives pressure plate mechanism 6 to move down along arrow F and enter fixed sleeve 4, gradually pressing the face paper 102 onto the plaster agent 103, which is thicker in the middle and thinner around the edges. At this time, since the face paper 102 has fallen onto the plaster agent 103, the fan 7 can be stopped, or it can remain on. The plaster agent 103 is quite viscous and is not significantly affected by suction. The edges of the face paper 102 are pressed downward by the telescopic top pin 64, thus contacting the bottom paper 101 first and being pressed tightly by the telescopic top pin 64. The concave part in the middle of the face paper 102 just covers the plaster agent 103, which is thicker in the middle and thinner around the edges.

[0164] As the pressure plate mechanism 6 continues to press down, the telescopic top pin 64 is retracted upwards, gradually reducing the distance between the face paper loading / unloading pressure plate 623 and the back paper 101. This flattens and thins the plaster 103, which is thicker in the middle and thinner around the edges, while its edges are restricted by the telescopic top pin 64. Specifically, the inner top pin 641 restricts the edges of the plaster 103, while the outer top pin 642 presses down on the edges of the face paper 102.

[0165] After the plaster agent 103 is flattened, the telescopic cutter 65 extends downwards, and its lower blade 651 falls on the periphery of the face paper 102 and cuts the back paper 101 downwards, thus completing the production of a plaster patch 100.

[0166] like Figure 16 As shown, after the plaster patch 100 is made, the pressure plate drive mechanism 8 lifts the pressure plate mechanism 6 along arrow G, and the vertical feed tube 52 remains in the clearance groove 41. The lifting base 3 descends along arrow H, and the base paper 101 is pulled along arrow I to prepare for the production of the next plaster patch 100.

[0167] As needed, the above technical solutions can be combined to achieve the best technical effect.

[0168] The above are merely the principles and preferred embodiments of the present invention. It should be noted that, for those skilled in the art, several other modifications can be made based on the principles of the present invention, and these modifications should also be considered within the scope of protection of the present invention.

Claims

1. A plaster production equipment, characterized in that, It includes a base paper conveying mechanism, a face paper conveying mechanism, a lifting base for supporting the base paper to be processed, a fixed sleeve suspended directly above the lifting base, an injection tube for conveying plaster medicine into the fixed sleeve, a pressure plate mechanism for picking up and putting in the face paper, and an air pump and pressure plate drive mechanism connected to the pressure plate mechanism. When the injection tube delivers the plaster to the fixed sleeve, the lifting base lifts up carrying the bottom paper and blocks the lower opening of the fixed sleeve; The pressure plate drive mechanism can drive the pressure plate mechanism to switch positions between the fixed sleeve and the paper feeding mechanism, and can drive the pressure plate mechanism to lift and lower within the fixed sleeve. The bottom surface of the pressure plate mechanism is provided with a paper picking and placing pressure plate. The paper picking and placing pressure plate is provided with a plurality of ventilation holes that communicate with the air pump at intervals. The air pump is used to draw or deliver air to achieve adsorption or release of paper. The paper feeding and dispensing pressure plate is equipped with telescopic top pins and telescopic cutters around its four edges; When the pressure plate mechanism descends into position in the fixed sleeve, the face paper presses onto the plaster medicine below, and the four edges of the face paper are pressed tightly against the bottom paper below by the telescopic top pin; When the telescopic top pin is compressed into place, the lower blade of the telescopic cutter falls on the periphery of the face paper and cuts downwards.

2. The plaster production equipment according to claim 1, characterized in that, The telescopic top pin includes an inner top pin and an outer top pin. The inner top pin is used to limit the boundaries that the plaster agent can reach, and the outer top pin is used to press down the four edges of the face paper. The telescopic cutter slides through the outer top pin so that the lower edge of the telescopic cutter lands on the indentation of the outer top pin on the face paper.

3. The plaster production equipment according to claim 1 or 2, characterized in that, The pressure plate mechanism includes an upper pressure plate seat, a lower pressure plate seat slidably connected to the upper pressure plate seat, and a first elastic element connected between the lower pressure plate seat and the upper pressure plate seat; The upper pressure plate is provided with a central air duct, and the lower pressure plate is provided with an air cavity communicating with the central air duct. The paper feeding and dispensing pressure plate is located at the bottom of the air cavity. When the first elastic element is compressed and the lower and upper pressure plates move closer to each other, the paper-taking and placing pressure plate provides cushioning while flattening the plaster medicine below.

4. The plaster production equipment according to claim 3, characterized in that, The upper part of the pressure plate is provided with a ventilation opening in the middle, which connects the central air duct and the air cavity, and the middle part of the air cavity is provided with an upwardly extending wedge-shaped plug. When the first elastic element is in its initial state, the wedge-shaped plug moves away from the vent and uses suction to adsorb the face paper onto the bottom surface of the face paper pick-up and drop pressure plate. When the first elastic element is compressed by a preset distance, the wedge-shaped plug is inserted into the vent and a preset gap is left, allowing a small amount of air to blow into the air cavity to help the face paper detach from the face paper pick-and-place pressure plate.

5. The plaster production equipment according to claim 4, characterized in that, The lower seat of the pressure plate has a side wall cavity in its lower seat side wall, and the telescopic cutter is slidably installed in the side wall cavity and can extend from the bottom of the side wall cavity; The sidewall cavity can communicate with the central air duct and / or the ventilation opening; Before the first elastic element is compressed by a predetermined distance, the sidewall cavity is disconnected from the central air duct and / or the vent. When the first elastic element is compressed by a preset distance, the side wall cavity is connected to the central air duct and / or the vent, and a large amount of air enters the side wall cavity to press down the telescopic cutter.

6. The plaster production equipment according to claim 5, characterized in that, The upper pressure plate seat is provided with a branch air duct that communicates with the central air duct and / or the ventilation port, and the air outlet of the branch air duct is located on the outer surface of the upper side wall of the upper pressure plate seat. The lower seat sidewall is slidably connected to the outside of the upper seat sidewall; The inner surface of the lower seat sidewall is provided with a cavity opening that can communicate with the air outlet of the air duct. Before the first elastic element is compressed by a preset distance, the cavity opening is separated from the air duct outlet, and the air duct outlet is sealed by the inner surface of the lower seat sidewall. When the first elastic element is compressed by a preset distance, the cavity opening connects with the air outlet of the air duct.

7. The plaster production equipment according to claim 5, characterized in that, The cavity wall of the sidewall cavity is provided with an upper limit plate and a lower limit plate; The outer top pin of the telescopic top pin is slidably disposed in the side wall cavity, and the outer top pin has a top pin channel for the telescopic cutter to pass through. The upper end of the outer top pin is connected to a top pin end plate, which is slidably mounted between the lower limit plate and the upper limit plate. A second elastic element is connected between the top pin end plate and the bottom of the side wall cavity. The upper end of the telescopic cutter is connected to a cutter end plate, which is slidably mounted between the top pin end plate and the upper limit plate. A third elastic element is connected between the top pin end plate and the cutter end plate. The lower end of the telescopic cutter is inserted into the top pin channel. When the top pin end plate rests on the lower limit plate and the third elastic element is compressed, the lower blade can extend from the lower end of the top pin channel.

8. The plaster production equipment according to claim 1, characterized in that, The injection pipe includes a horizontal injection pipe and a vertical injection pipe connected to the outlet end of the horizontal injection pipe; The transverse feed tube can slide through the wall of the fixed sleeve, and the vertical feed tube is located inside the fixed sleeve and extends downward; A material tube drive mechanism is connected between the wall of the fixed sleeve and the transverse material tube, which is used to drive the transverse material tube to extend and retract relative to the fixed sleeve. The inner surface of the fixing sleeve is provided with a clearance groove; When the injection tube is in working condition, the tube drive mechanism drives the horizontal tube to move the vertical tube to the center of the fixed sleeve; When the injection tube is in a non-working state, the tube drive mechanism pulls the horizontal tube, causing the vertical tube to move into the clearance groove.

9. The plaster production equipment according to claim 1, characterized in that, The pressure plate drive mechanism includes a suspended turntable, a drive motor for driving the turntable to rotate, and a piston for driving the lifting and lowering operation of the pressure plate mechanism. Multiple sets of pressure plate mechanisms are evenly distributed below the turntable, and each set of pressure plate mechanisms is connected to the turntable through a set of pistons; The pressure plate mechanism can pass above the paper feeding mechanism and the fixed sleeve as the turntable rotates.

10. A method for producing a medicated plaster, characterized in that, The plaster production equipment according to any one of claims 1-9 includes the following steps: S1: The lifting base lifts up the bottom paper and blocks the lower opening of the fixing sleeve; S2: A predetermined amount of plaster is delivered into the fixed sleeve using the injection tube, and the plaster falls onto the base paper below; S3: The pressure plate driving mechanism drives the pressure plate mechanism to move to the face paper conveying mechanism, the fan starts the ventilation operation, and the face paper pick-up and drop plate picks up a face paper. S4: The pressure plate driving mechanism drives the pressure plate mechanism to move above the fixed sleeve; S5: The pressure plate driving mechanism drives the pressure plate mechanism to move downward into place in the fixed sleeve, and the face paper presses on the plaster medicine below; The four edges of the face paper are pressed tightly against the bottom paper below by the telescopic top pin; When the telescopic top pin is compressed into place, the lower blade of the telescopic cutter falls on the periphery of the face paper and cuts downwards; S6: The fan starts to supply air, and the face paper is separated from the face paper pick-and-place plate; S7: The pressure plate drive mechanism drives the pressure plate mechanism to rise away from the fixed sleeve, and the lifting base carries the completed plaster down to reset; S8: A plaster has been made.

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