Feeding and filling device of osmotic pump tablet perforating machine

Abstract

The utility model provides a feeding and filling device of an osmotic pump tablet perforating machine, which comprises a conveying mechanism, a feeding hopper and a filling mechanism, the conveying mechanism is provided with a plurality of carriers which are arranged along an annular conveying contour and are used for conveying the carriers to circulate along the annular conveying contour, a plurality of material grooves used for being filled with tablets are formed in the carrier in an array mode, the feeding hopper is used for storing the tablets and automatically feeding the tablets to the filling mechanism according to the filling requirement, and the filling mechanism is arranged on the conveying mechanism and located below the feeding hopper and used for filling the tablets into the material grooves of the carrier in a one-to-one correspondence mode. The feeding hopper is adopted for feeding, the structure is simple, operation is easy and convenient, vibration to equipment can be reduced, stability and punching accuracy of the equipment can be improved, filling and arranging of a plurality of tablets can be completed at a time, production efficiency is improved, and high-speed, continuous, stable and batch production can be achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of pharmaceutical equipment, in particular to a feeding and filling device of an osmotic pump tablet punching machine. Background Art

[0002] Osmotic pump tablets are a type of sustained-release tablet preparation with a semipermeable membrane on the surface. Usually, micropores are punched on the semipermeable membrane. After the preparation is taken, the water in the liquid can pass through the semipermeable membrane into the inner core of the preparation. The propellant in the inner core of the preparation absorbs the water and begins to expand to produce a pumping effect - pressure. At the same time, the preparation begins to dissolve. The increase in pressure forces the dissolved drug to slowly release through the micropores punched on the semipermeable membrane and diffuse into the human body, achieving the purpose of stable and controlled release of the drug. Therefore, the release micropores on the semipermeable membrane are crucial to the release quality of osmotic pump preparations.

[0003] The traditional drilling method is to use mechanical drilling, which has low processing accuracy and efficiency, and is prone to tablet damage, making it impossible to achieve large-scale processing. Carbon dioxide lasers are mostly used in the fields of medical treatment, material processing, industrial manufacturing, etc., especially in packaging coding and medical beauty applications. Utilizing the characteristics of carbon dioxide lasers, holes can be punched in the coating layer of controlled-release preparations, which has high processing efficiency, processing accuracy and stability, ensuring the consistency of drug processing.

[0004] Existing laser punching machines usually use a vibrating doser, vibrating disk, and turntable to discharge, sort, and load tablets, and then transport them to the laser puncher for punching. This loading and sorting method has the following disadvantages: 1. In the actual production process, the vibrating doser and vibrating disk are prone to wear of the tablets, affecting the stability of the tablet release rate, and causing the laser puncher to produce micro-movements, affecting the efficiency and accuracy of laser punching; 2. The use of a turntable for sorting and loading is prone to jamming, with a high failure rate, and only one tablet can enter the turntable trough at a time, which is inefficient and cannot achieve high-speed mass production. Utility Model Content

[0005] The utility model aims to provide a feeding and filling device for an osmotic pump sheet punching machine to overcome the deficiencies in the prior art.

[0006] In order to solve the above technical problems, the technical solution of the utility model is: a feeding and filling device of an osmotic pump tablet punching machine, comprising a conveying mechanism, a loading hopper, and a filling mechanism, the conveying mechanism is provided with a plurality of carriers loaded with tablets arranged along an annular conveying profile, which are used to convey the carriers to circulate along the annular conveying profile, the carriers are provided with a plurality of material troughs arranged in an array for filling tablets, the upper hopper is used for storing materials and automatically loading materials to the filling mechanism according to filling requirements, the filling mechanism is arranged on the conveying mechanism, below the upper hopper, and the filling mechanism is used to fill the tablets one by one into the material troughs of the carriers.

[0007] Furthermore, in the feeding and filling device of the above-mentioned osmotic pump tablet punching machine, the conveying mechanism is a chain-plate type ring-shaped conveying chain, and the ring-shaped conveying chain is inclined upward along the conveying direction, including an inclined straight conveying section and arc sections arranged at both ends of the straight conveying section, and the filling mechanism is arranged along the upper straight conveying section, so that the gravity direction of the tablets in the carrier is opposite to the conveying traction direction.

[0008] Furthermore, in the above-mentioned loading and filling device of the osmotic pump sheet punching machine, the carrier includes a carrier seat and a carrier plate, the carrier seat is connected to the chain links on the circular conveyor chain in a one-to-one correspondence, the carrier plate is plugged into the carrier seat, the material trough is arranged at one end of the carrier plate away from the carrier seat, and one end of the carrier plate where the material trough is arranged extends to the outside of the circular conveyor chain.

[0009] Furthermore, in the feeding and filling device of the above-mentioned osmotic pump tablet punching machine, the upper hopper is assembled from three sections of upper, middle and lower hopper bodies, wherein the lower end of the inner part of the middle hopper body is provided with a valve plate driven by a motor, the hopper body above the valve plate is a tablet storage area, and the bottom of the upper hopper is provided with a discharge pipe inclined toward the filling mechanism. Preferably, a material shortage sensor is provided in the feeding port, and when there is a shortage of material, the material shortage sensor sends a signal to the control system to prompt the feeding.

[0010] Furthermore, the feeding and filling device of the above-mentioned osmotic pump tablet punching machine, the filling mechanism includes a filling hopper, a baffle group, and a brush. The filling hopper is U-shaped, and its opening direction is a discharge port arranged along the conveying direction. The discharge port of the filling hopper is provided with a brush. The brush is used to sweep the tablets stacked on the carrier into the filling hopper and smooth the tablets on the carrier so that the tablets are placed in the trough. The baffle group is arranged below the filling hopper, including a plurality of transparent baffles, and the plurality of baffles cover the side of the filling hopper except the discharge port. The baffle group covers the trough area of ​​the carrier plate where the trough is arranged to ensure the filling rate of the tablets on the carrier plate.

[0011] Furthermore, in the feeding and filling device of the above-mentioned osmotic pump sheet punching machine, the filling hopper outlet is also provided with a material baffle plate, and the material baffle plate is arranged along an outer side surface of the brush and tilted toward the inside of the filling hopper.

[0012] Furthermore, in the feeding and filling device of the above-mentioned osmotic pump sheet punching machine, the material baffle plate is movably connected to the filling hopper, the filling hopper outlet is provided with a connecting rod fixed on the filling hopper, the connecting rod is clamped with a plurality of clamping blocks, the clamping blocks are fixed on the material baffle plate and rotatably connected to the connecting rod.

[0013] Furthermore, in the feeding and filling device of the above-mentioned osmotic pump sheet punching machine, a material level sensor is provided in the filling hopper, and the material level sensor is electrically connected to the motor driving the upper hopper valve plate, and the upper hopper automatically feeds material to the filling mechanism according to the filling demand fed back by the material level sensor.

[0014] Furthermore, the feeding and filling device of the above-mentioned osmotic pump tablet punching machine, the filling mechanism also includes a second brush and a pressure roller arranged in sequence along the conveying direction, the second brush and the pressure roller are both located downstream of the first brush, the second brush is used for smoothing the tablets twice, and the pressure roller is used for smoothing the tablets three times to push the upright tablets into the material trough, the first brush and the second brush are arranged on the baffle group, and are rotatably connected to the baffle group through a driving mechanism.

[0015] Furthermore, in the feeding and filling device of the above-mentioned osmotic pump sheet punching machine, an electrostatic eliminator is also provided between the second brush and the pressure roller.

[0016] Compared with the prior art, the utility model has the following beneficial effects: the utility model adopts a loading hopper valve plate to discharge and load materials, does not require vibration or sorting of loading materials, has a simple structure, is easy to operate, can reduce vibration to the equipment, improves the stability of the equipment and the accuracy of punching, and can minimize the wear on the tablets; and the conveying mechanism conveys upward along the conveying direction, which can not only improve the filling rate of the tablets on the carrier, but also ensure the consistency of the punching position and improve the punching accuracy; in addition, through the cooperation between the filling mechanism and the conveying mechanism, the filling is smooth, and the phenomenon of material jamming is not easy to occur, and the filling and sorting of multiple tablets can be completed at one time, which greatly improves the production efficiency and can produce at high speed, continuously, stably and in batches. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 The structure diagram of the feeding and filling device of the osmotic pump sheet punching machine of the utility model is shown as follows Figure 1 ;

[0019] Figure 2 The structure diagram of the feeding and filling device of the osmotic pump sheet punching machine of the utility model is shown as follows Figure 2 ;

[0020] Figure 3 It is a partial schematic diagram of the feeding and filling device of the osmotic pump sheet punching machine of the utility model;

[0021] In the figure: 1, conveying mechanism; 11, carrier; 111, carrier seat; 112, carrier plate; 12, ring conveying chain; 121, linear conveying section; 122, arc section;

[0022] 2. Upper hopper; 21. Discharge pipe;

[0023] 3. Filling mechanism; 31. Filling bucket; 32. Baffle group; 33. Brush 1; 34. Brush 2; 35. Pressing roller; 36. Static eliminator; 37. Baffle plate; 371. Connecting rod; 372. Clamp block; 38. Dust hood. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] Example 1

[0026] like Figure 1-3 As shown, a feeding and filling device of an osmotic pump tablet punching machine includes a conveying mechanism 1, a hopper 2, and a filling mechanism 3. The conveying mechanism 1 is provided with a plurality of carriers 11 for loading tablets arranged along an annular conveying profile, which are used to convey the carriers 11 to circulate along the annular conveying profile. The carriers 11 are provided with a plurality of troughs arranged in an array for filling tablets. The hopper 2 is used for storing materials and automatically loading materials to the filling mechanism 3 according to filling requirements. The filling mechanism 3 is arranged on the conveying mechanism 1 and is located below the hopper 2. The filling mechanism 3 is used to fill the tablets one by one into the troughs of the carriers 11.

[0027] In the above structure, if Figure 1-2 As shown, the conveying mechanism 1 is a chain plate type annular conveying chain 12, and the annular conveying chain 12 is arranged obliquely upward along the conveying direction, including an inclined linear conveying section 121 and arc sections 122 arranged at both ends of the linear conveying section. The filling mechanism 3 is arranged along the upper linear conveying section 121, so that the gravity direction of the tablets in the carrier 11 is opposite to the conveying traction direction. Through this arrangement, the stacked tablets can automatically move downward and fall into the lower end of the filling hopper 31, thereby improving the filling rate of the tablets on the carrier 11. Moreover, since there is a gap between the tablets and the trough, after the tablets are filled, it is uncertain which side of the trough the gap between the tablets and the horizontally arranged carrier trough is located, which will affect the punching accuracy. The inclined setting of the conveying mechanism 1 allows the carrier 11 to be inclined, so that the tablets can abut against the lower side of the trough, and the maximum gap between all tablets and the trough is on the upper side, thereby ensuring the consistency of the punching position and improving the punching accuracy.

[0028] Among them, Figure 1 , 3As shown, the carrier 11 includes a carrier seat 111 and a carrier plate 112. The carrier seat 111 is connected to the chain links on the circular conveyor chain 12 in a one-to-one correspondence. The carrier plate 112 is plugged into the carrier seat 111. The material trough is provided at one end of the carrier plate 112 away from the carrier seat 111, and one end of the carrier plate 112 where the material trough is provided extends to the outside of the circular conveyor chain 12, which can facilitate the cooperation between the filling mechanism 3 and the carrier 11; and through the cooperation between the carrier plate 112 and the circular conveyor chain 12, the filling of multiple tablets can be completed at one time, which greatly improves the efficiency of filling and sorting materials.

[0029] The utility model adopts a loading hopper 2 for loading materials, does not require vibration loading, can reduce vibration to the equipment, improve the stability of the equipment and the accuracy of punching, and the conveying mechanism 1 conveys upward along the conveying direction, which can not only improve the filling rate of the tablets on the carrier 11, but also ensure the consistency of the punching position and improve the punching accuracy; in addition, through the cooperation of the carrier 11 with the filling mechanism 3 and the annular conveying chain 12, the filling is smooth and the material is not easy to be stuck, and the filling and sorting of multiple tablets can be completed at one time, which greatly improves the production efficiency and can be produced at a high speed, continuously, stably and in batches.

[0030] Example 2

[0031] Based on the structure of the first embodiment, Figure 1 , 2 As shown, the upper hopper 2 is assembled from three sections of upper, middle and lower hopper bodies. The upper hopper 2 is set as a split structure, which is convenient for disassembly, assembly, cleaning and maintenance. The lower end of the inner part of the middle hopper of the upper hopper 2 is provided with a valve plate driven by a motor. The hopper body above the valve plate is a tablet storage area. The bottom of the upper hopper 2 is provided with a discharge pipe 21 inclined toward the filling mechanism 3. A material shortage sensor is provided in the feeding port 2. When there is a shortage of material, the material shortage sensor sends a signal to the control system to prompt the feeding. The upper hopper 2 uses a valve plate to discharge the material, does not require sorting, has a simple structure, is easy to operate, does not use vibration feeding, can minimize the wear on the tablets, and can reduce the vibration of the equipment, improve the stability of the equipment and the accuracy of punching.

[0032] like Figure 1-3 As shown, the filling mechanism 3 includes a filling hopper 31, a baffle group 32, and a brush 33. The filling hopper 31 is U-shaped, and its opening direction is a discharge port arranged along the conveying direction. The discharge port of the filling hopper 31 is provided with a brush 33, and the brush 33 is used to sweep the tablets stacked on the carrier 11 into the filling hopper 31, and smooth the tablets on the carrier 11 so that the tablets are placed in the material trough; the baffle group 32 is arranged below the filling hopper 31, and includes a plurality of transparent baffles, and the plurality of baffles cover the side of the filling hopper 31 except the discharge port. The transparent baffle group 32 can facilitate manual observation of the situation in the filling hopper 31, and the baffle group 32 covers the material trough area where the material trough is arranged on the carrier 112, which can block the material and prevent the tablets from leaking out.

[0033] In the above structure, if Figure 3 As shown, the discharge port of the filling hopper 31 is also provided with a baffle plate 37, and the baffle plate 37 is arranged along the outer side of the brush 1 33 and tilted toward the inside of the filling hopper 31. In order to ensure that the tablets entering the filling hopper 31 do not jump out of the filling hopper 31, the baffle plate 37 is movably connected with the filling hopper 31. Specifically, the discharge port of the filling hopper 31 is provided with a connecting rod 371 fixed on the filling hopper 31, and a plurality of clamping blocks 372 are clamped on the connecting rod 371. The clamping blocks 372 are fixed on the baffle plate 37 and rotatably connected to the connecting rod 371. By adjusting the angle of the clamping blocks 372, the angle of the baffle plate 37 can be adjusted to ensure that the tablets do not jump out of the filling hopper 31.

[0034] The filling hopper 31 is also provided with a material level sensor, which is electrically connected to the motor driving the valve plate of the upper hopper 2. The upper hopper 2 automatically feeds the material to the filling mechanism 3 according to the filling demand fed back by the material level sensor. The material level sensor controls the amount of tablets in the filling hopper 31 and the conveying speed of the conveying mechanism 2 to maximize the tablet filling rate. In addition, Figure 1-2 As shown, a dust hood 38 is provided below the filling hopper 31 and below the carrier 11 . The upper opening of the dust hood 38 covers the bottom opening of the filling hopper 31 to absorb dust, tablet debris, etc.

[0035] In addition, if Figure 1-3 As shown, the filler mechanism 3 also includes a brush 2 34 and a pressure roller 35 arranged in sequence along the conveying direction. The brush 2 34 and the pressure roller 35 are both located downstream of the brush 1 33. The brush 2 34 is used to smooth the tablets twice, and the pressure roller 35 is used to smooth the tablets three times to push the erected tablets into the material trough. The pressure roller 35 is rotatably connected to the conveying mechanism 1 through a support rod, so that the tablets are placed in a horizontal state in the material trough of the carrier 11, so that the side to be punched faces the laser; the brush 1 33 and the brush 2 34 are arranged on the baffle group 32, and are driven and connected to the baffle group 32 by a driving mechanism (not shown in the figure). The driving mechanism of this embodiment is a belt transmission structure driven by a servo motor. An electrostatic eliminator 36 is also arranged between the brush 2 34 and the pressure roller 35, which can eliminate the static electricity between the brush and the pressure roller to avoid adhesion affecting the smoothing effect.

[0036] The working principle of the filling mechanism is as follows: during filling, the carrier 11 takes away a part of the tablets when passing under the filling hopper 31, and the tablets stacked on the carrier plate 112 are swept into the filling hopper 31 by the brush 1 33 when they exit the discharge port, and the others are smoothed once and placed in the material trough of the carrier plate 112, and then smoothed twice or three times by the brush 2 34 and the pressure roller 35. The tablets are basically filled into the material trough of the carrier in the correct posture, with a high filling rate and accurate filling position, and each filling can complete the filling and sorting of multiple tablets, thereby improving the punching efficiency.

[0037] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0038] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A feeding and filling device for an osmotic pump sheet punching machine, characterized in that: It includes a conveying mechanism, an upper hopper, and a filling mechanism. The conveying mechanism is provided with a plurality of carriers loaded with tablets arranged along a circular conveying profile, which are used to convey the carriers to circulate along the circular conveying profile. The carrier is provided with a plurality of material troughs arranged in an array for filling tablets. The upper hopper is used to store materials and automatically load materials to the filling mechanism according to filling requirements. The filling mechanism is arranged on the conveying mechanism and is located below the upper hopper. The filling mechanism is used to fill the tablets one by one into the material troughs of the carriers.

2. The feeding and filling device of the osmotic pump sheet punching machine according to claim 1, characterized in that: The conveying mechanism is a chain-plate type ring-shaped conveying chain, which is arranged obliquely upward along the conveying direction, including an inclined straight conveying section and arc sections arranged at both ends of the straight conveying section. The filling mechanism is arranged along the upper straight conveying section, so that the gravity direction of the tablets in the carrier is opposite to the conveying traction direction.

3. The feeding and filling device of the osmotic pump sheet punching machine according to claim 2, characterized in that: The carrier includes a carrier seat and a carrier plate. The carrier seat is connected to the chain links on the circular conveyor chain in a one-to-one correspondence. The carrier plate is plugged into the carrier seat. The material trough is arranged at one end of the carrier plate away from the carrier seat, and one end of the carrier plate where the material trough is arranged extends to the outside of the circular conveyor chain.

4. The feeding and filling device of the osmotic pump sheet punching machine according to claim 1, characterized in that: The upper hopper is assembled from three sections, namely, upper, middle and lower hopper bodies. A valve plate driven by a motor is provided at the lower end of the middle hopper body. The hopper body above the valve plate is a tablet storage area. A discharge pipe inclined toward the filling mechanism is provided at the bottom of the upper hopper.

5. The feeding and filling device of the osmotic pump sheet punching machine according to claim 1 or 4, characterized in that: The filling mechanism includes a filling hopper, a baffle group, and a brush. The filling hopper is U-shaped, and its opening direction is a discharge port arranged along the conveying direction. The discharge port of the filling hopper is provided with a brush. The brush is used to sweep the tablets stacked on the carrier into the filling hopper and smooth the tablets on the carrier so that the tablets are placed in the material trough; the baffle group is arranged below the filling hopper, including multiple transparent baffles, and the multiple baffles cover the sides of the filling hopper except the discharge port.

6. The feeding and filling device of the osmotic pump sheet punching machine according to claim 5, characterized in that: The filling hopper outlet is also provided with a material baffle plate, which is arranged along an outer side surface of the brush and tilted toward the inside of the filling hopper.

7. The feeding and filling device of the osmotic pump sheet punching machine according to claim 6, characterized in that: The material baffle plate is movably connected to the filling hopper, and a connecting rod fixed on the filling hopper is provided at a material outlet of the filling hopper. A plurality of clamping blocks are clamped on the connecting rod, and the clamping blocks are fixed on the material baffle plate and rotatably connected to the connecting rod.

8. The feeding and filling device of the osmotic pump sheet punching machine according to claim 5, characterized in that: A material level sensor is provided in the filling hopper, and the material level sensor is electrically connected to a motor driving a valve plate of the upper hopper. The upper hopper automatically feeds material to the filling mechanism according to the filling demand fed back by the material level sensor.

9. The feeding and filling device of the osmotic pump sheet punching machine according to claim 5, characterized in that: The filling mechanism also includes a second brush and a pressure roller which are arranged in sequence along the conveying direction. The second brush and the pressure roller are both located downstream of the first brush. The second brush is used for smoothing the tablets twice, and the pressure roller is used for smoothing the tablets three times to push the erected tablets into the material trough. The first brush and the second brush are arranged on the baffle group and are rotatably connected to the baffle group through a driving mechanism.

10. The feeding and filling device of the osmotic pump sheet punching machine according to claim 9, characterized in that: A static eliminator is also arranged between the second brush and the pressure roller.

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