Soft capsule skin mechanical property testing equipment

Abstract

The utility model belongs to the technical field of soft capsule skin performance testing, and particularly relates to soft capsule skin mechanical performance testing equipment which comprises a supporting testing frame, a lead screw is rotatably installed between the inner walls of the left side and the right side of the supporting testing frame, and a limiting rod is fixedly installed between the inner walls of the left side and the right side of the supporting testing frame. A rotary knob is fixedly installed on the outer side of one end of the lead screw, a sliding block is installed on the outer side of the lead screw in a threaded mode, and the sliding block is installed on the outer side of the limiting rod in a sliding mode. According to the device, the pressing control block can be pressed to drive the clamping block to be separated from the inner side of the connecting rod, the first spring can drive the connecting rod and the capsule clamping frame above the connecting rod to be popped out, only the connecting rod needs to slide into the inner side of the fixing frame when the device is installed, and one side of the clamping block is arc-shaped, so that the device is convenient to install.

Description

Technical Field

[0001] The utility model relates to the technical field of soft capsule shell performance testing, in particular to a soft capsule shell mechanical performance testing device. Background Art

[0002] Soft capsules are a type of dosage form consisting of a solution, suspension, emulsion, or semisolid encapsulated by a capsule shell. They are widely used in health supplements and pharmaceuticals. Soft capsules are manufactured by compression and drop-forming methods. The capsule shell exhibits gelling properties and plasticity, enabling the soft capsule to be encapsulated when heated to its melting point. After drying, it regains its rigidity. The compression method places higher demands on the capsule shell than the drop-forming method. During storage, the capsule shell seams are most susceptible to changes due to factors such as moisture migration, the contents, ambient temperature and humidity, and aging of the rubber shell. These changes can lead to thinning and even pinhole-like leakage. The mechanical strength of the capsule shell provides structural support for the soft capsule after molding. A high-quality capsule shell can mitigate the adverse effects of temperature, humidity, and the contents on the soft capsule.

[0003] Currently, most soft capsules for health supplements and pharmaceuticals are made from gelatin. Gelatin is a hydrophilic protein formed by the incomplete degradation of collagen in connective tissues such as animal skin and bone, and its sources are complex. Using gelatin from different manufacturers, even with the same cooking process, product uniformity can fluctuate, resulting in varying soft capsule quality characteristics. Different contents can also require different capsule shell formation requirements.

[0004] In the production of soft capsules, the formulation, preparation process, and performance of the soft capsule shell play a decisive role in the quality of the finished soft capsule. Currently, when controlling the quality of the prepared pellets, parameters such as the dynamic viscosity of the glue, the moisture content of the glue, the thickness of the capsule shell, and the difference in the amount of pellets are often used as process indicators. Different glue formulations, such as the use of different plasticizers, can result in different capsule shell strengths, which will cause changes in the operating parameters of the pill making machine when the pellets are formed. During the pelleting or shelf life storage period, if the soft capsule shell leaks, sticks, disintegrates, or exceeds the limit, it is unqualified. This requires adding a dimension such as capsule shell strength to provide a basis for soft capsule quality analysis and formulation process parameters;

[0005] Publication No. CN 113447356 B discloses a device for testing the mechanical properties of soft capsule skins. The device comprises placing a skin with a humidity of 32-48% in an environment at 20-22°C and a relative humidity of 35±5% for 20-60 minutes, cutting the skin into strips to obtain a sample to be tested; firmly clamping the sample between the ends of a clamp, with the longitudinal axis of the sample aligning with the center lines of the clamps at both ends, keeping the skin horizontal, recording the initial length L0 of the marking line, and pulling the sample at a constant speed of 250-350 mm / min. When the sample breaks, the pulling is stopped and the length L of the marking line at that position is recorded. The breaking elongation = (L-L0) / L0*100%.

[0006] When it is used, in the prior art, after the soft capsule skin clamping test is completed, the staff needs to manually clean the clamping device, and the soft capsule skin is placed on the clamping device and adheres to the top of the clamping device, which makes it difficult for the staff to quickly test more soft capsule skins and prolongs the working time; therefore, we propose a soft capsule skin mechanical property testing device. Utility Model Content

[0007] The purpose of the utility model is to provide a soft capsule shell mechanical property testing device to solve the existing problems.

[0008] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0009] A soft capsule skin mechanical property testing device comprises a support test frame, a screw is rotatably installed between the left and right inner walls of the support test frame, a limit rod is fixedly installed between the left and right inner walls of the support test frame, a knob is fixedly installed on the outside of one end of the screw, a sliding block is threadedly installed on the outside of the screw, the sliding block is slidably installed on the outside of the limit rod, a fixed frame is fixedly installed on the top of the sliding block, the fixed frame on the right is fixedly installed on the top of the support test frame, a capsule clamping frame is arranged above the fixed frame, connecting rods are fixedly installed on the front and back sides of the bottom of the capsule clamping frame, a first spring is fixedly installed on the bottom of the connecting rod, a disassembly and assembly component is arranged above the fixed frame, and a clamping component is arranged above the capsule clamping frame.

[0010] As a further improvement of the above scheme, the disassembly and assembly assembly includes a fixed plate, a second spring, a clamping block and a pressing control block. The fixed plate is fixedly installed on the inner side of the fixed frame, the second spring is fixedly installed on the front and rear sides of the fixed plate, the clamping block is fixedly installed on the outside of one end of the second spring, and the pressing control block is fixedly installed on one side of the clamping block.

[0011] As a further improvement of the above scheme, the clamping assembly includes a threaded rod, a sliding rod, a control handle, a limit block and a clamping plate. The threaded rod is threadedly installed on the top of the capsule clamping frame, the sliding rod is slidably installed on the front and rear sides of the top of the threaded rod, the control handle is fixedly installed on the top of the threaded rod, the limit block is fixedly installed on the top of the sliding rod, the clamping plate is fixedly installed on the bottom of the sliding rod, and the clamping plate is rotatably installed on the bottom of the threaded rod.

[0012] As a further improvement of the above solution, an insertion slot is provided on the top of the fixing frame, and the connecting rod fits in the insertion slot.

[0013] As a further improvement of the above solution, a slot is provided on one side of the connecting rod, and the clamping block is engaged with the slot.

[0014] As a further improvement of the above solution, sliding grooves are provided on the front and rear sides of the fixing frame, and the pressing control block is slidably installed on the inner side of the sliding grooves.

[0015] As a further improvement of the above solution, a sliding groove is provided on the top of the support test frame, the sliding block is slidably installed on the inner side of the sliding groove, and a scale groove is provided on the front side of the support test frame.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] (1) The utility model provides a device for testing the mechanical properties of a soft capsule skin. By providing a disassembly assembly component, the device can easily make the soft capsule skin adhere to the upper part of the capsule clamping frame when the soft capsule skin is pulled for testing. The device can press the pressing control block to drive the clamping block to detach from the inner side of the connecting rod, so that the first spring can drive the connecting rod and the upper capsule clamping frame to pop out. When installing the device, it is only necessary to slide the connecting rod into the inner side of the fixing frame. One side of the clamping block is arc-shaped, making the device more convenient to install.

[0018] (2) The utility model provides a device for testing the mechanical properties of a soft capsule skin. The soft capsule skin is placed in the middle of a capsule clamping frame and a clamping plate by means of a clamping assembly. The control handle drives the threaded rod to rotate, so that the threaded rod can drive the clamping plate to move its position after the rotation, so that the clamping plate can clamp and fix the soft capsule skin. The control knob drives the screw rod to rotate, so that the screw rod can drive the sliding block and the upper fixed frame to move their position after the rotation. A scale groove is provided on the front side of the support test frame, so that the device is more convenient and quick to operate during the detection process. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0020] Figure 1 This is a schematic diagram of the three-dimensional structure of a soft capsule skin mechanical properties testing device proposed in the utility model;

[0021] Figure 2 This is a partial three-dimensional structural diagram of a soft capsule skin mechanical properties testing device proposed in the present invention;

[0022] Figure 3 This is a partial three-dimensional structural diagram of a soft capsule skin mechanical properties testing device proposed in the present invention;

[0023] Figure 4 The present invention provides a schematic diagram of a partial three-dimensional structure of a soft capsule capsule mechanical properties testing device.

[0024] In the figure: 1. Support test frame; 2. Screw rod; 3. Limit rod; 4. Knob; 5. Sliding block; 6. Fixed frame; 7. Capsule clamping frame; 8. Connecting rod; 9. First spring; 10. Fixed plate; 11. Second spring; 12. Block; 13. Press control block; 14. Threaded rod; 15. Sliding rod; 16. Control handle; 17. Limit block; 18. Clamping plate. DETAILED DESCRIPTION

[0025] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] refer to Figure 1-4, a soft capsule skin mechanical property testing equipment, including a supporting test frame 1, a screw rod 2 is rotatably installed between the left and right inner walls of the supporting test frame 1, a limit rod 3 is fixedly installed between the left and right inner walls of the supporting test frame 1, a knob 4 is fixedly installed on the outside of one end of the screw rod 2, a sliding block 5 is threadedly installed on the outside of the screw rod 2, the sliding block 5 is slidably installed on the outside of the limit rod 3, a fixing frame 6 is fixedly installed on the top of the sliding block 5, and the right fixing frame 6 is fixedly installed on the top of the supporting test frame 1, and a capsule clamping frame 7 is arranged above the fixing frame 6, and connecting rods 8 are fixedly installed on the front and back sides of the bottom of the capsule clamping frame 7, and the connecting rods 8 can slide into the inner side of the fixing frame 6, so that the capsule clamping frame 7 is disassembled and assembled more conveniently and quickly, so that the device can be faster when testing multiple capsules, and the capsule clamping frame 7 is disassembled and cleaned more conveniently and quickly.

[0027] A first spring 9 is fixedly installed at the bottom of the connecting rod 8, a disassembly and assembly component is provided above the fixed frame 6, and a clamping component is provided above the capsule clamping frame 7; in this embodiment, the disassembly and assembly component includes a fixed plate 10, a second spring 11, a clamping block 12 and a pressing control block 13, the fixed plate 10 is fixedly installed on the inner side of the fixed frame 6, the second spring 11 is fixedly installed on the front and rear sides of the fixed plate 10, the clamping block 12 is fixedly installed on the outside of one end of the second spring 11, and the pressing control block 13 is fixedly installed on one side of the clamping block 12.

[0028] In this embodiment, the clamping assembly includes a threaded rod 14, a sliding rod 15, a control handle 16, a limit block 17 and a clamping plate 18. The threaded rod 14 is threadedly installed on the top of the capsule clamping frame 7, and the sliding rod 15 is slidably installed on the front and rear sides of the top of the threaded rod 14. The control handle 16 is fixedly installed on the top of the threaded rod 14, so that the control handle 16 can drive the sliding rod 15 to rotate after rotation, so that the sliding rod 15 can drive the clamping plate 18 to clamp the capsule through threaded cooperation after rotation; the limit block 17 is fixedly installed on the top of the sliding rod 15, the clamping plate 18 is fixedly installed on the bottom of the sliding rod 15, and the clamping plate 18 is rotatably installed on the bottom of the threaded rod 14; in this embodiment, an insertion groove is provided at the top of the fixed frame 6, and the connecting rod 8 is fitted with the insertion groove.

[0029] In this embodiment, a card slot is provided on one side of the connecting rod 8, and the card block 12 engages with the card slot; in this embodiment, sliding grooves are provided on the front and rear sides of the fixing frame 6, and the pressing control block 13 is slidably installed on the inner side of the sliding groove; the sliding groove facilitates the pressing control block 13 to slide, so that the pressing control block 13 can control the card block 12 to move, so that the card block 12 can lock the connecting rod 8. In this embodiment, a sliding groove is provided on the top of the support test frame 1, and the sliding block 5 is slidably installed on the inner side of the sliding groove. A scale groove is provided on the front side of the support test frame 1.

[0030] The implementation principle of a soft capsule skin mechanical property testing device in the embodiment of the present application is as follows: when the device is pulling the soft capsule skin for testing, it is easy to make it adhere to the upper part of the capsule clamping frame 7, and the device can press the pressing control block 13 to drive the clamping block 12 to detach from the inner side of the connecting rod 8, so that the first spring 9 can drive the connecting rod 8 and the upper capsule clamping frame 7 to pop out, and when installing the device, it is only necessary to slide the connecting rod 8 into the inner side of the fixing frame 6. One side of the clamping block 12 is arc-shaped, which makes the device easier to install; The soft capsule skin is placed in the middle of the capsule clamping frame 7 and the clamping plate 18. The control handle 16 drives the threaded rod 14 to rotate, so that the threaded rod 14 can drive the clamping plate 18 to move its position after rotation, so that the clamping plate 18 can clamp and fix the soft capsule skin. The control knob 4 drives the screw rod 2 to rotate, so that the screw rod 2 can drive the sliding block 5 and the upper fixed frame 6 to move their position after rotation. A scale groove is provided on the front side of the support test frame 1, so that the device is more convenient and quick to operate during the detection process.

[0031] Throughout this specification, references to terms such as "one embodiment," "example," or "specific example" indicate that a specific feature, structure, material, or characteristic described in conjunction with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0032] The above describes in detail the soft capsule skin mechanical property testing equipment provided by the present invention. Specific examples are used herein to illustrate the principles and implementation methods of the present invention. The description of the above examples is intended only to facilitate understanding of the method and core concept of the present invention. It should be noted that, without departing from the principles of the present invention, a number of improvements and modifications may be made to the present invention, and such improvements and modifications fall within the scope of protection of the claims of the present invention.

Claims

1. A soft capsule capsule mechanical properties testing device, characterized in that: include: A support test frame (1) is provided, wherein a screw rod (2) is rotatably installed between the left and right inner walls of the support test frame (1), a limit rod (3) is fixedly installed between the left and right inner walls of the support test frame (1), a knob (4) is fixedly installed on the outer side of one end of the screw rod (2), a sliding block (5) is threadedly installed on the outer side of the screw rod (2), the sliding block (5) is slidably installed on the outer side of the limit rod (3), a fixed frame (6) is fixedly installed on the top of the sliding block (5), the fixed frame (6) on the right is fixedly installed on the top of the support test frame (1), a capsule clamping frame (7) is provided above the fixed frame (6), a connecting rod (8) is fixedly installed on the front and rear sides of the bottom of the capsule clamping frame (7), a first spring (9) is fixedly installed on the bottom of the connecting rod (8), a disassembly assembly is provided above the fixed frame (6), and a clamping assembly is provided above the capsule clamping frame (7).

2. A soft capsule skin mechanical properties testing device according to claim 1, characterized in that: The disassembly and assembly assembly comprises a fixed plate (10), a second spring (11), a clamping block (12) and a pressing control block (13); the fixed plate (10) is fixedly mounted on the inner side of the fixed frame (6); the second spring (11) is fixedly mounted on the front and rear sides of the fixed plate (10); the clamping block (12) is fixedly mounted on the outer side of one end of the second spring (11); and the pressing control block (13) is fixedly mounted on one side of the clamping block (12).

3. A soft capsule skin mechanical properties testing device according to claim 1, characterized in that: The clamping assembly includes a threaded rod (14), a slide rod (15), a control handle (16), a limit block (17) and a clamping plate (18), wherein the threaded rod (14) is threadedly mounted on the top of the capsule clamping frame (7), the slide rod (15) is slidably mounted on the front and rear sides of the top of the threaded rod (14), the control handle (16) is fixedly mounted on the top of the threaded rod (14), the limit block (17) is fixedly mounted on the top of the slide rod (15), the clamping plate (18) is fixedly mounted on the bottom of the slide rod (15), and the clamping plate (18) is rotatably mounted on the bottom of the threaded rod (14).

4. A soft capsule skin mechanical properties testing device according to claim 1, characterized in that: An insertion slot is provided on the top of the fixing frame (6), and the connecting rod (8) fits in the insertion slot.

5. A soft capsule skin mechanical properties testing device according to claim 2, characterized in that: A clamping slot is provided on one side of the connecting rod (8), and the clamping block (12) is engaged with the clamping slot.

6. A soft capsule skin mechanical properties testing device according to claim 2, characterized in that: Slide grooves are provided on the front and rear sides of the fixing frame (6), and the pressing control block (13) is slidably mounted on the inner side of the slide grooves.

7. A soft capsule skin mechanical properties testing device according to claim 1, characterized in that: A sliding groove is provided on the top of the support test frame (1), the sliding block (5) is slidably mounted on the inner side of the sliding groove, and a scale groove is provided on the front side of the support test frame (1).

Images