Medicinal powder weighing and packaging system

Abstract

The utility model discloses a medicine powder weighing and packaging system which comprises a weighing device, a material bag holding device, a feeding device and a distributing device. A material bag used for packaging medicine powder is placed on the weighing device. The material bag enclasping device comprises an air expansion ring and an air expansion ring fixing disc, the feeding device is sleeved with the air expansion ring fixing disc, and the air expansion ring is installed on the air expansion ring fixing disc; a bag opening of the material bag is arranged on the feeding device in a sleeving mode, gas is introduced into the gas expansion ring to generate expansion, and the material bag is tightly held on the feeding device. The material distributing device is mounted in the feeding device and comprises a large material distributing valve for coarse feeding and a small material distributing valve for fine feeding. The packaging and weighing accuracy is improved, a material bag does not need to be manually supported, medicine powder packaging is facilitated, and the medicine powder packaging efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of weighing and packaging equipment, in particular to a medicine powder weighing and packaging system. Background Art

[0002] After the preparation of the powder, it needs to be packaged. Since the powder is a medicine, the weight needs to be precisely controlled during packaging. The existing weighing and packaging equipment has a large weighing precision error and cannot achieve high-precision weighing. Moreover, when the existing weighing and packaging equipment uses the material bag for loading, it generally requires manual bag support, which has low packaging efficiency and is prone to contamination of the powder. Utility Model Content

[0003] In order to solve the above technical problems, the purpose of the utility model is to provide a medicine powder weighing and packaging system, which can realize automatic bag support and achieve higher weighing accuracy.

[0004] In order to achieve the above technical objectives and the above technical effects, the present invention is implemented through the following technical solutions:

[0005] A medicine powder weighing and packaging system, comprising a weighing device, a bag holding device, a feeding device and a material dividing device;

[0006] The material bag used for packaging the medicine powder is placed on the weighing device;

[0007] The material bag holding device comprises an inflatable ring and an inflatable ring fixing plate, wherein the inflatable ring fixing plate is sleeved outside the feeding device, and the inflatable ring is installed on the inflatable ring fixing plate; the bag opening of the material bag is sleeved on the feeding device, and the inflatable ring expands when gas is introduced into the inflatable ring, thereby holding the material bag tightly on the feeding device;

[0008] The material distribution device is installed in the feeding device, and the material distribution device includes a large material distribution valve for coarse feeding and a small material distribution valve for fine feeding.

[0009] Furthermore, the medicine powder weighing and packaging system also includes a control device, which is connected to the weighing device and the material distribution device through signals. The operation of the weighing device and the material distribution device is controlled by the control device.

[0010] Furthermore, the powder weighing and packaging system also includes a support frame, the weighing device is installed on the bottom of the support frame, the air ring fixing plate in the bag clamping device is fixed on the support frame, and the feeding device is fixed on the upper part of the support frame.

[0011] Furthermore, the feeding device is a segmented structure, which includes a lower feeding cylinder, a feeding hopper, an upper feeding cylinder and an upper splicing cylinder which are arranged in sequence from bottom to top.

[0012] Furthermore, the air expansion ring fixing plate includes an upper plate, a bottom ring and a vertical ring. The vertical ring is arranged on the lower side of the center opening of the upper plate, and the bottom ring is arranged on the lower side of the vertical ring. The upper plate, the vertical ring and the bottom ring cooperate to form an installation groove, and the air expansion ring is installed in the installation groove.

[0013] Furthermore, the large dispensing valve and the small dispensing valve are assembled together, wherein the large dispensing valve has an assembly hole at its center, and the small dispensing valve is assembled in the assembly hole of the large dispensing valve.

[0014] Furthermore, the large dispensing valve is connected to the first motor, and the small dispensing valve is connected to the second motor.

[0015] Furthermore, the feeding device is provided with a nitrogen interface for introducing nitrogen.

[0016] Furthermore, the weighing device is provided with a material bag barrel, and the material bag is placed in the material bag barrel.

[0017] The beneficial effects of the utility model are:

[0018] The utility model uses an inflatable ring to automatically hold the bag mouth of the material bag tightly to the feeding device, without the need for manual support of the material bag, which facilitates the packaging of the powder and improves the efficiency of the powder packaging. Moreover, the bag mouth of the material bag is tightly held with the feeding device, so that the bag mouth is in a closed state during the filling process, and the powder will not be polluted by the external environment and affected by air oxidation.

[0019] The utility model performs coarse feeding through a large material dividing valve and performs fine feeding through a small material dividing valve, thereby being able to control the packaging weight more accurately.

[0020] The utility model also accurately controls the weighing and loading processes through the control device, which can improve the accuracy and efficiency of package weighing, realize package weighing in a shorter time, and realize the flexibility of package weighing. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of a medicine powder weighing and packaging system according to an embodiment of the utility model.

[0022] Figure 2 It is a structural schematic diagram of the medicine powder weighing and packaging system from another perspective of an embodiment of the utility model.

[0023] Figure 3 It is a structural schematic diagram of a bag clamping device in a medicine powder weighing and packaging system according to an embodiment of the utility model.

[0024] Figure 4 It is a structural schematic diagram of a material dividing device in a medicine powder weighing and packaging system according to an embodiment of the utility model.

[0025] In the figure, 1: weighing device; 2: material bag holding device, 21: air expansion ring, 22: air expansion ring fixing plate, 221: upper plate, 222: bottom ring, 223: vertical ring; 3: feeding device, 31: lower feeding cylinder, 32: feeding hopper, 33: upper feeding cylinder, 34: upper splicing cylinder, 35: nitrogen interface; 4: distributing device, 41; large distributing valve, 411: extending shaft, 42: small distributing valve, 421: connecting shaft; 5: control device; 6: electric cabinet; 7: material bag barrel; 8: supporting frame. DETAILED DESCRIPTION

[0026] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present invention.

[0027] like Figures 1 to 4 The medicine powder weighing and packaging system shown comprises a weighing device 1, a bag clamping device 2, a feeding device 3 and a dividing device 4.

[0028] The powder weighing and packaging system also includes a support frame 8; the weighing device 1 is installed on the bottom of the support frame 8; the bag clamping device 2 includes an inflatable ring 21 and an inflatable ring fixing plate 22, the inflatable ring fixing plate 22 is fixed on the support frame 8, and the feeding device 3 is fixed on the upper part of the support frame 8.

[0029] The weighing device 1 is provided with a bag barrel 7 , in which a bag for packaging medicine powder is placed.

[0030] The feeding device 3 has a feeding channel, and is a segmented structure, including a lower feeding cylinder 31, a feeding hopper 32, an upper feeding cylinder 33 and an upper splicing cylinder 34 connected sequentially from bottom to top. The feeding hopper 32 is a conical structure for easy feeding. The upper splicing cylinder 34 includes a plurality of splicing sections, which are spliced ​​together by clamps or screws.

[0031] The bag holding device 2 includes an inflatable ring 21 and an inflatable ring fixing plate 22. The inflatable ring fixing plate 22 is sleeved outside the feeding device 3, specifically, sleeved at the tube mouth of the lower feeding tube 31 of the feeding device 3; the inflatable ring fixing plate 22 includes an upper plate 221, a bottom ring 222 and a vertical ring 223, the vertical ring 223 is arranged on the lower side of the center opening of the upper plate 221, the bottom ring 222 is arranged on the lower side of the vertical ring 223, the upper plate 221, the vertical ring 223 and the bottom ring 222 cooperate to form an installation groove, and the inflatable ring 21 is installed in the installation groove of the inflatable ring fixing plate 22. The bag opening of the material bag is sleeved on the tube opening of the lower feed tube 31 of the feeding device 3. The gas expansion ring 21 has a gas interface, which can be connected to an air intake pipeline and an air release pipeline. An air intake valve can be set on the air intake pipeline, and an air release valve can be set on the air release pipeline. The gas expansion ring can be connected to an external gas supply device through the air intake valve. After the gas is introduced, the gas expansion ring 21 expands to hold the material bag tightly to the feeding device 3.

[0032] The distributing device 4 is installed in the feeding device 3, specifically, it is installed in the upper splicing tube 34 of the feeding device 3. More specifically, the distributing device 3 is installed in the two splicing sections at the bottom of the upper splicing tube 34. The distributing device 4 includes a large distributing valve 41 for coarse feeding and a small distributing valve 42 for fine feeding. The large distributing valve 41 is assembled with the small distributing valve 42, wherein the center of the large distributing valve 41 has an assembly hole, and the small distributing valve 42 is assembled in the assembly hole of the large distributing valve 41. More specifically, the valve body of the large distributing valve 41 is a disc structure, which also has an extended shaft 411 extending from the feeding device, and the first motor is connected to the large distributing valve 41 through the extended shaft 411 to drive the large distributing valve 41 to rotate. The valve body of the small distributing valve 42 includes a plurality of valve plates, and the plurality of valve plates are combined into a spherical valve body structure. The small dispensing valve 42 also has a connecting shaft 421, which passes through the large dispensing valve 41 and the outer wall of the feeding device 3 and is connected to the second motor; the second motor drives the small dispensing valve 42 to rotate.

[0033] The feeding device 3 is provided with a nitrogen interface 35 for introducing nitrogen; specifically, the nitrogen interface 35 is arranged on the upper feeding cylinder 33. When packaging the powder, the nitrogen is filled to ensure that the powder is in an inert atmosphere to prevent the powder from being oxidized.

[0034] The powder weighing and packaging system also includes a control device 5 and an electric cabinet 6; the control device 6 is connected to the weighing device 1 and the material distribution device 4 through signals. Specifically, the control device 6 includes a touch screen and a PLC; through the control device, the operation of the weighing device and the material distribution device can be controlled, and the weight of the powder can be displayed in real time. In addition, the control device 6 can also control the air intake and air discharge of the inflation ring 21 by controlling the air intake valve and the air discharge valve. With the control device 5, the standard weight of the package can be preset.

[0035] During operation, the material bag is placed in the material bag barrel 7 on the weighing device 1, and the bag mouth of the material bag is put on the lower feeding port of the feeding device 3; the material belt clamping device 2 is started, and the gas is introduced into the inflation ring 21 to expand and clamp the bag mouth to the feeding device 3; then, nitrogen is filled into the feeding device 3; the material is loaded through the feeding device 3, first the large dispensing valve 41 is rotated and opened for coarse feeding, and the powder enters the material bag after passing through the feeding device 3, and when the touch screen of the control device 5 shows that the weight of the powder is close to the preset powder packaging standard weight, the large dispensing valve 41 stops rotating and closes, and the small dispensing valve 42 is rotated and opened for fine feeding; after the powder packaging weight reaches the standard, the small dispensing valve 42 is closed; the inflation ring 21 releases gas, and the material bag containing the powder is manually taken away.

[0036] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A medicine powder weighing and packaging system, characterized in that: It includes a weighing device, a bag holding device, a feeding device and a material dividing device; The material bag used for packaging the medicine powder is placed on the weighing device; The material bag holding device comprises an inflatable ring and an inflatable ring fixing plate, wherein the inflatable ring fixing plate is sleeved outside the feeding device, and the inflatable ring is installed on the inflatable ring fixing plate; the bag opening of the material bag is sleeved on the feeding device, and the inflatable ring expands when gas is introduced into the inflatable ring, thereby holding the material bag tightly on the feeding device; The material distribution device is installed in the feeding device, and the material distribution device includes a large material distribution valve for coarse feeding and a small material distribution valve for fine feeding.

2. A medicine powder weighing and packaging system according to claim 1, characterized in that: It also includes a control device, which is connected to the weighing device and the material distribution device through signals.

3. A medicine powder weighing and packaging system according to claim 1, characterized in that: It also includes a support frame, the weighing device is installed on the bottom of the support frame, the air ring fixing plate in the bag holding device is fixed on the support frame, and the feeding device is fixed on the upper part of the support frame.

4. A medicine powder weighing and packaging system according to claim 1, characterized in that: The feeding device is a segmented structure, which includes a lower feeding cylinder, a feeding hopper, an upper feeding cylinder and an upper splicing cylinder which are arranged in sequence from bottom to top.

5. A medicine powder weighing and packaging system according to claim 1, characterized in that: The air expansion ring fixing plate includes an upper plate, a bottom ring and a vertical ring. The vertical ring is arranged on the lower side of the center opening of the upper plate, and the bottom ring is arranged on the lower side of the vertical ring. The upper plate, the vertical ring and the bottom ring cooperate to form an installation groove, and the air expansion ring is installed in the installation groove.

6. A medicine powder weighing and packaging system according to claim 1, characterized in that: The large dosing valve is assembled with the small dosing valve, wherein the large dosing valve has an assembly hole at its center, and the small dosing valve is assembled in the assembly hole of the large dosing valve.

7. A medicine powder weighing and packaging system according to claim 1, characterized in that: The large dispensing valve is connected to the first motor, and the small dispensing valve is connected to the second motor.

8. A medicine powder weighing and packaging system according to claim 1, characterized in that: The feeding device is provided with a nitrogen interface for introducing nitrogen.

9. A medicine powder weighing and packaging system according to claim 1, characterized in that: The weighing device is provided with a material bag barrel, and the material bag is placed in the material bag barrel.

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