Punching device

Abstract

The utility model discloses a punching device, which includes: a mounting seat; a punching assembly, which is arranged on the mounting seat and includes a punch and an ejection assembly, the punch has a mounting cavity with an open lower side, the ejection assembly is arranged in the mounting cavity and includes a limiter, an ejector and a first elastic member, the limiter is connected to the punch, the ejector is supported on the limiter and at least a part of the ejector extends to the lower side of the lower end surface of the punch, and the first elastic member is arranged between the ejector and the bottom wall of the mounting cavity; a driving assembly, which is arranged on the mounting seat and located above the punching assembly, and the driving assembly includes an electromagnetic coil and a driving rod, at least a part of the driving rod is a magnetic member, and the electromagnetic coil is arranged outside the driving rod. According to the punching device of the embodiment of the utility model, by arranging an electromagnetic coil on the outer side of the driving rod to drive the driving rod to move, the stability of the sample punching can be improved, and the punching effect of the punch on the sample can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of drug preparation production devices, in particular to a punching device. Background Art

[0002] Films and patches are new drug preparations that use film-forming materials to deliver drugs through mucous membranes and skin. During the production process, the drug needs to be dissolved and then hot-melt extruded or coated with the film-forming material and then dried into a thin layer, which is then cut into a specific shape for packaging and quantitative administration. In related technologies, laboratories mostly use manual punching dies to punch film materials. However, existing manual punching dies require a large external force to act on the punch during use, and the impact force of the punch on the sample is difficult to control, resulting in poor stability of the punch on the sample, which affects the punching effect of the punch on the sample, and there is room for improvement. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, one purpose of the utility model is to provide a punching device, which has high stability in punching samples and can improve the punching effect of samples.

[0004] According to the embodiment of the utility model, the punching device includes: a mounting seat; a stamping assembly, the stamping assembly is arranged on the mounting seat and includes a punch and an ejector assembly, the punch has a mounting cavity open at the lower side, the ejector assembly is arranged in the mounting cavity and includes a limit member, an ejector pin and a first elastic member, the limit member is connected to the punch, the ejector pin is supported on the limit member and at least a portion of the ejector pin extends to the lower side of the lower end surface of the punch, the first elastic member is arranged between the ejector pin and the bottom wall of the mounting cavity; a driving assembly, the driving assembly is arranged on the mounting seat and located above the stamping assembly, the driving assembly includes an electromagnetic coil and a driving rod, at least a portion of the driving rod is a magnetic member, the electromagnetic coil is arranged on the outside of the driving rod, and the electromagnetic coil is suitable for driving the driving rod to move in a power-on state so that the driving rod cooperates with the punch to make the punch and the ejector assembly move.

[0005] According to the punching device of the embodiment of the utility model, a magnetic driving rod is arranged above the punch, and an electromagnetic coil is arranged on the outside of the driving rod, so that the electromagnetic coil can be energized to drive the driving rod to impact the punch, so as to realize the punching of the sample by the punch. On the basis of maintaining a certain magnitude of the current of the electromagnetic coil, the impact force of the driving rod on the punch can be kept constant, thereby improving the stability of the punching of the sample, maintaining a consistent punching thickness when the distance between the punch and the sample is constant, improving the punching effect of the punch on the sample, and facilitating operation. In addition, compared with the solution of using a motor or an external air source to drive the driving rod to move, the structure of the driving assembly can be simplified, and the space utilization rate of the driving assembly can be improved, which is conducive to the miniaturization of the punching device to meet the use requirements of the punching device in a smaller space, and is conducive to expanding the scope of application of the punching device.

[0006] According to some embodiments of the utility model, the driving component also includes: a capacitor and a control knob, the capacitor can be connected to a power supply, the electromagnetic coil is connected to the capacitor and a trigger switch is provided therebetween, and the control knob is used to adjust the charging capacity of the capacitor.

[0007] In some examples, the punching device also includes: a cooling fan and a temperature detection element, the cooling fan is arranged opposite to the electromagnetic coil, the temperature detection element is used to detect the temperature of the electromagnetic coil, and the cooling fan communicates with the temperature detection element to operate when the temperature detection element detects that the temperature of the electromagnetic coil reaches a preset temperature.

[0008] In some examples, the punching device also includes: a relay, which can be connected to a power supply and communicate with the temperature detection component, the cooling fan and the capacitor are respectively connected to the relay, and the relay is configured to connect the capacitor to the power supply when the temperature detection component detects that the temperature of the electromagnetic coil is lower than a preset temperature, and control the cooling fan to operate and disconnect the capacitor from the power supply when the temperature detection component detects that the temperature of the electromagnetic coil reaches a preset temperature.

[0009] In some examples, the drive assembly also includes a shell, which is connected to the mounting base, and the opposite side walls of the shell respectively have heat dissipation ports. A first mounting frame and a second mounting frame located between the opposite side walls and arranged oppositely are provided in the shell, the electromagnetic coil is provided on the first mounting frame, and the cooling fan is provided on the second mounting frame.

[0010] According to some embodiments of the utility model, the driving rod includes a magnetic rod and a push rod, the magnetic rod is a magnetic component and at least a portion of it is arranged on a side of the electromagnetic coil away from the stamping assembly, at least a portion of the push rod is located in the electromagnetic coil and connected to the magnetic rod, and the push rod is suitable for cooperating with the punch so that the punch can punch and cut the sample.

[0011] According to some embodiments of the utility model, a limiting boss is provided at the upper end of the driving rod, and a second elastic member is provided between the limiting boss and the electromagnetic coil, wherein the second elastic member is suitable for compressing and storing energy when the electromagnetic coil drives the driving rod to move.

[0012] According to some embodiments of the utility model, the stamping assembly also includes: a sleeve, the punch includes a matching portion and a tool head portion, the bottom of the sleeve has a limiting flange, the middle portion of the limiting flange defines an avoidance opening, the matching portion is movably arranged on the sleeve and a third elastic member is provided between the matching portion and the limiting flange, the tool head portion is located outside the sleeve and connected to the matching portion, and the matching portion defines the installation cavity.

[0013] In some examples, the mounting base includes: a base plate, a pillar and a support base, the pillar is arranged on the base plate, the support base is arranged on the pillar and spaced apart from the base plate, the support base has a limiting ring, and the stamping assembly also includes: a sleeve and an adjusting member, the driving assembly is arranged on the sleeve and abuts against the sleeve, the punch is arranged in the sleeve, the sleeve is suitable for passing through the limiting ring, and the adjusting member is connected to the sleeve for adjusting the distance between the sleeve and the base plate.

[0014] In some examples, the adjusting member includes: a fourth elastic member, a connecting rod and an operating rod, the side wall of the sleeve has a limit block, the fourth elastic member is located on the side of the limit block away from the driving assembly, the two ends of the fourth elastic member are respectively matched with the limit block and the limit ring, one end of the connecting rod is rotatably connected to the support seat, one end of the operating rod is rotatably connected to the other end of the connecting rod, and the middle part of the operating rod is rotatably connected to the sleeve.

[0015] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0017] Figure 1It is a schematic structural diagram of a punching device according to some embodiments of the utility model;

[0018] Figure 2 is a cross-sectional view of a punching device according to some embodiments of the utility model at a certain viewing angle;

[0019] Figure 3 is a cross-sectional view of the punching device according to some embodiments of the utility model at another viewing angle;

[0020] Figure 4 yes Figure 3 A magnified view of the structure in the middle;

[0021] Figure 5 is a schematic diagram of the structure of a drive assembly according to some embodiments of the utility model;

[0022] Figure 6 is an exploded view of a drive assembly according to some embodiments of the present utility model;

[0023] Figure 7 is a schematic diagram of the structure of a stamping assembly according to some embodiments of the utility model;

[0024] Figure 8 is an exploded view of a stamping assembly according to some embodiments of the utility model;

[0025] Fig. 9 It is a schematic diagram of the structure of the cutter head according to some embodiments of the utility model;

[0026] Fig.10 is a schematic diagram of the structure of a mounting base according to some embodiments of the utility model;

[0027] Fig.11 is a circuit diagram of a punching device according to some embodiments of the utility model.

[0028] Reference numerals:

[0029] Punching device 100,

[0030] Mounting seat 10, bottom plate 11, pillar 12, support seat 13, limiting ring 131, pad 14, mounting cover 15,

[0031] Stamping assembly 20, punch 21, matching portion 211, mounting cavity 2111, mounting protrusion 2112, cutter head 212, mounting groove 2121, limiting groove 2122, third elastic member 213, ejection assembly 22, first elastic member 221, limiting member 222, ejector pin 223, sleeve 23, limiting flange 231, avoidance opening 2311, limiting block 232, adjusting member 24, connecting rod 241, operating rod 242, fourth elastic member 243,

[0032] Driving assembly 30, electromagnetic coil 31, driving rod 32, magnetic rod 321, limiting boss 3211, second elastic member 322, top rod 323, capacitor 33, control knob 34, trigger switch 35, housing 36, first mounting bracket 361, second mounting bracket 362, heat dissipation port 363, bus switch 37,

[0033] Cooling fan 40 , temperature detection element 41 , relay 42 , power supply 43 . DETAILED DESCRIPTION

[0034] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0035] In the description of the present utility model, it is necessary to understand that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, features defined as "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0036] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0037] Reference below Figure 1-Figure 11 A punching device 100 according to an embodiment of the present invention is described.

[0038] like Figure 1-Figure 11As shown, the punching device 100 according to the embodiment of the utility model includes: a mounting seat 10, a punching assembly 20 and a driving assembly 30, the punching assembly 20 is arranged on the mounting seat 10, and the punching assembly 20 includes a punch 21 and an ejection assembly 22, the punch 21 has a mounting cavity 2111, and the lower side of the mounting cavity 2111 (such as Figure 8 The lower side (as shown) is open, and the ejection assembly 22 is arranged in the installation cavity 2111.

[0039] The ejector assembly 22 includes a stopper 222, an ejector pin 223 and a first elastic member 221. The stopper 222 is connected to the punch 21, the ejector pin 223 is supported on the stopper 222, and at least a portion of the ejector pin 223 extends to the lower side of the lower end surface of the punch 21 (such as Figure 4 The first elastic member 221 is disposed between the ejector pin 223 and the bottom wall of the mounting cavity 2111, so that the ejector pin 223 can contact the sample before the punch 21 punches the sample, and the ejector pin 223 can move upward relative to the punch 21 when the punch 21 punches the sample (as shown in the figure). Figure 2 bottom-up direction as shown) activities.

[0040] At the same time, the first elastic member 221 can be elastically deformed and store energy, and then when the punch 21 completes punching the sample and moves upward, the first elastic member 221 can release energy and restore the deformation to drive the ejector pin 223 to move downward relative to the punch 21 (such as Figure 2 The movement from top to bottom as shown in the figure can realize the automatic ejection of the sample, which can avoid the operator to repeatedly disassemble the punch 21 to take out the sample, facilitate the operation, and help to improve the safety of the operation; it can be understood that the first elastic member 221 can be a spring or a wave spring, which has strong elastic deformation ability and low cost.

[0041] The driving assembly 30 is disposed on the mounting base 10, and the driving assembly 30 is located above the stamping assembly 20 (eg Figure 1 As shown above, the driving assembly 30 includes an electromagnetic coil 31 and a driving rod 32. At least a portion of the driving rod 32 is a magnetic member. The electromagnetic coil 31 is arranged on the outside of the driving rod 32. The electromagnetic coil 31 can drive the driving rod 32 to move when powered on, so that the driving rod 32 cooperates with the punch 21, that is, the electromagnetic coil 31 can drive the driving rod 32 to impact the punch 21, so that the punch 21 and the ejection assembly 22 can move, so that the punching of the sample can be realized, and the automatic ejection of the sample can be realized after the punch 21 impacts the sample.

[0042] Among them, the force exerted by the driving rod 32 on the punch 21 is determined by the current of the electromagnetic coil 31, and on the basis of maintaining the magnitude of the current of the electromagnetic coil 31 constant, the impact force of the driving rod 32 on the punch 21 is constant, so that when the distance between the punch 21 and the sample is constant, the punching thickness of the sample punched by the punch 21 for multiple times can be guaranteed to be consistent, so that the punching stability is good, and the punching effect of the punch 21 on the sample can be improved; further, by adjusting the magnitude of the current of the electromagnetic coil 31, the impact force can be adjusted, which is conducive to the punching of samples of different thicknesses by the punch 21, and is conducive to the punching of samples of different hardnesses by the punch 21, and is easy to operate.

[0043] According to the punching device 100 of the embodiment of the utility model, a magnetic driving rod 32 is arranged above the punch 21, and an electromagnetic coil 31 is arranged on the outside of the driving rod 32, so that the electromagnetic coil 31 can be energized to drive the driving rod 32 to impact the punch 21, so as to realize the punching of the sample by the punch 21. On the basis of maintaining a certain magnitude of the current of the electromagnetic coil 31, the impact force of the driving rod 32 on the punch 21 can be kept constant, thereby improving the stability of the punching of the sample, maintaining a consistent punching thickness when the distance between the punch 21 and the sample is constant, improving the punching effect of the punch 21 on the sample, and facilitating operation; in addition, compared with the solution of using a motor or an external air source to drive the driving rod 32 to move, the structure of the driving component 30 can be simplified, and the space utilization rate of the driving component 30 can be improved, which is conducive to the miniaturization of the punching device 100, so as to meet the use requirements of the punching device 100 in a smaller space, and is conducive to expanding the scope of application of the punching device 100.

[0044] like Figure 1 and Fig.11 As shown, according to some embodiments of the utility model, the drive component 30 also includes: a capacitor 33 and a control knob 34, the capacitor 33 can be connected to a power supply 43, the electromagnetic coil 31 is connected to the capacitor 33, and a trigger switch 35 is arranged between the electromagnetic coil 31 and the capacitor 33, when the trigger switch 35 is disconnected, the power supply 43 can discharge the capacitor 33 to realize the charging of the capacitor 33, when the trigger switch 35 is closed, the capacitor 33 can discharge the electromagnetic coil 31 to realize the power-on of the electromagnetic coil 31; the control knob 34 can be arranged between the capacitor 33 and the power supply 43, the control knob 34 can include a knob and a sliding rheostat, by rotating the knob, the resistance of the sliding rheostat can be adjusted to realize the adjustment of the charging capacity of the capacitor 33.

[0045] It should be noted that the power supply 43 can be arranged in the punching device 100, and the power supply 43 can be a battery. The battery can be detachably arranged in the punching device 100 to facilitate battery replacement; or, the punching device 100 can be provided with a charging port, and the battery can be electrically connected to an external power supply through the charging port to realize charging of the built-in power supply 43 of the punching device 100, which is convenient for operation; of course, the power supply 43 can be arranged outside the punching device 100, and the punching device 100 is provided with a charging port, and the power supply 43 (battery) is electrically connected to the circuit inside the punching device 100 through the charging port, which can improve the safety of the use of the punching device 100.

[0046] like Figure 5 and Fig.11 As shown, in some examples, a bus switch 37 is provided between the relay 42 and the power supply 43. When the bus switch 37 is disconnected, the punching device 100 is powered off and stops working. When the bus switch 37 is closed, the punching device 100 is powered on, and then the operator can operate the punching device 100 to work, which can play a protective role for the punching device 100. For example, when the punching device 100 stops working, the operator can press the bus switch 37 to disconnect the bus switch 37 to prevent the punching device 100 from being powered on and damaged when there is no one to manage it.

[0047] like Figure 2 , Figure 6 and Fig.11 As shown, in some examples, the punching device 100 also includes: a cooling fan 40 and a temperature detection component 41. The cooling fan 40 is arranged relative to the electromagnetic coil 31, which is beneficial to increase the ventilation volume near the electromagnetic coil 31 and improve the heat dissipation effect of the electromagnetic coil 31; the temperature detection component 41 can detect the temperature of the electromagnetic coil 31, and the cooling fan 40 communicates with the temperature detection component 41, so that the cooling fan 40 can work when the temperature detection component 41 detects that the temperature of the electromagnetic coil 31 reaches a preset temperature.

[0048] Among them, the temperature detection part 41 can be a temperature sensitive switch, the temperature sensitive switch and the cooling fan 40 are electrically connected to the power supply 43 respectively, and the temperature sensitive switch is located near the electromagnetic coil 31. When the temperature of the electromagnetic coil 31 reaches a preset temperature, the temperature sensitive switch is disconnected by heat to trigger the cooling fan 40 to work, which can realize automatic heat dissipation of the electromagnetic coil 31, which is beneficial to improve the working effect of the electromagnetic coil 31, improve the stability of the driving rod 32 impacting the punch 21, improve the punching effect of the sample, and at the same time help to improve the safety of the entire punching process.

[0049] like Fig.11As shown, in some examples, the punching device 100 also includes: a relay 42, the relay 42 can be connected to a power supply 43, and the relay 42 communicates with the temperature detection component 41, the cooling fan 40 and the capacitor 33 are respectively connected to the relay 42, when the temperature detection component 41 detects that the temperature of the electromagnetic coil 31 is lower than the preset temperature, the relay 42 can control the capacitor 33 to be electrically connected to the power supply 43 to realize the charging of the capacitor 33, and at the same time the relay 42 can disconnect the electrical connection between the cooling fan 40 and the power supply 43.

[0050] When the temperature detection element 41 detects that the temperature of the electromagnetic coil 31 reaches a preset temperature, the relay 42 can control the cooling fan 40 to be electrically connected to the power supply 43, so that the cooling fan 40 can work to dissipate the heat of the electromagnetic coil 31. At the same time, the relay 42 can disconnect the electrical connection between the capacitor 33 and the power supply 43, thereby preventing the capacitor 33 from charging and discharging, thereby protecting the entire punching device 100.

[0051] like Figure 5 and Figure 6 As shown, in some examples, the drive assembly 30 also includes a shell 36, which is connected to the mounting base 10, and the opposite side walls of the shell 36 respectively have heat dissipation ports 363. A first mounting frame 361 and a second mounting frame 362 are arranged in the shell 36, and the first mounting frame 361 and the second mounting frame 362 are arranged relatively to each other, and the first mounting frame 361 and the second mounting frame 362 are respectively located between the opposite side walls in the shell 36. The electromagnetic coil 31 is arranged in the first mounting frame 361, which can protect the electromagnetic coil 31 and help improve the working stability of the electromagnetic coil 31. The cooling fan 40 is arranged in the second mounting frame 362, which can protect the cooling fan 40 and help improve the working stability of the cooling fan 40.

[0052] It can be understood that the first mounting frame 361 and the second mounting frame 362 respectively have a chamber, and the chamber is oriented to opposite sides (such as Figure 5 The front and rear sides (as shown) are open to form an open opening, and the open opening is opposite to the heat dissipation port 363. The electromagnetic coil 31 and the heat dissipation fan 40 are both installed in the chamber. When the heat dissipation fan 40 works, air can fully flow through the electromagnetic coil 31 to improve the heat dissipation effect of the electromagnetic coil 31.

[0053] like Figure 5 and Figure 6 As shown, in some examples, the bus switch 37 can be a button, and the button and the control knob 34 can be respectively arranged on the housing 36 to facilitate the operation of the operator.

[0054] like Figure 2 , Figure 3 and Figure 6As shown, according to some embodiments of the present invention, the driving rod 32 includes a magnetic rod 321 and a push rod 323, the magnetic rod 321 is a magnetic member, and at least a portion of the magnetic rod 321 is arranged on a side of the electromagnetic coil 31 away from the stamping assembly 20 (such as Figure 6 The electromagnetic coil 31 can exert a downward force on the magnetic rod 321 after being energized (as shown in the upper side). Figure 6 The electromagnetic force of the push rod 323 (from top to bottom as shown) is used to drive the magnetic rod 321 to move downward. At least a portion of the push rod 323 is located in the electromagnetic coil 31, and the push rod 323 is connected to the magnetic rod 321. The magnetic rod 321 can drive the push rod 323 to move downward, and the push rod 323 can cooperate with the punch 21, that is, the push rod 323 can impact the punch 21, so that the punch 21 cuts the sample.

[0055] It should be noted that a portion of the magnetic rod 321 can be set on the upper side of the electromagnetic coil 31, so that another portion of the magnetic rod 321 can extend into the electromagnetic coil 31 when the electromagnetic coil 31 is not energized, which is beneficial to shorten the distance between the push rod 323 and the punch 21, and further beneficial to shorten the response time of the punching device 100 and facilitate operation.

[0056] Of course, the entire magnetic rod 321 can be set on the upper side of the electromagnetic coil 31, which can increase the electromagnetic force generated by the electromagnetic coil 31 on the magnetic rod 321 after being energized, thereby improving the punching effect on the sample; in addition, at least a portion of the push rod 323 is located in the electromagnetic coil 31, which can extend the length of the entire driving rod 32, and ensure that the driving rod 32 is in contact with the punch 21 after the electromagnetic coil 31 is energized, thereby improving the stability of the impact on the punch 21 and the stability of the sample punching.

[0057] like Figure 2 , Figure 3 and Figure 6 As shown, according to some embodiments of the present invention, the upper end of the driving rod 32 (such as Figure 2 A limiting boss 3211 is provided at the upper end (as shown), and a second elastic member 322 is provided between the limiting boss 3211 and the electromagnetic coil 31, wherein one end of the second elastic member 322 abuts against the lower end surface of the limiting boss 3211, and the other end of the second elastic member 322 abuts against the first mounting frame 361.

[0058] When the electromagnetic coil 31 drives the driving rod 32 to move downward, the second elastic member 322 is compressed to store energy, and after the driving rod 32 impacts the punch 21, the second elastic member 322 releases energy and extends to drive the driving rod 32 to move upward and reset, so that the punching device 100 continues to punch the sample; it can be understood that the second elastic member 322 can be a spring, which has strong elastic deformation ability and low cost.

[0059] like Figure 1 , Figure 4, Figure 7 and Figure 8 As shown, according to some embodiments of the present utility model, the stamping assembly 20 further includes: a sleeve 23, the punch 21 includes a matching portion 211 and a cutter head 212, the bottom of the sleeve 23 has a limiting flange 231, the middle of the limiting flange 231 defines an avoidance opening 2311, the matching portion 211 is arranged on the sleeve 23, and the matching portion 211 can move relative to the sleeve 23, that is, a part of the matching portion 211 can pass through the avoidance opening 2311 and extend to the lower side of the limiting flange 231 (such as Figure 8 The cutter head 212 is located outside the sleeve 23, and the cutter head 212 is connected to the matching portion 211, that is, the cutter head 212 is located on the lower side of the limiting flange 231, which is convenient for punching the sample.

[0060] A third elastic member 213 is arranged between the mating portion 211 and the limiting flange 231. When the cutter head 212 punches the sample, the third elastic member 213 undergoes elastic deformation and stores energy, which can attenuate the vibration of the punching device 100, which is beneficial to improving the stability of the sample punching, and the third elastic member 213 can release energy and restore deformation to reset the cutter head 212; it can be understood that the third elastic member 213 can be a wave spring or a spring, which has a strong elastic deformation ability and low cost.

[0061] The lower end of the matching portion 211 (such as Figure 8 The lower end (shown in FIG. 1 ) defines a mounting cavity 2111, and the lower side (shown in FIG. 1 ) of the mounting cavity 2111 Figure 8 The lower side (as shown) is open, which is convenient for the installation of the ejector assembly 22 and is conducive to the ejector pin 223 passing through the cutter head 212 to contact the sample, which can prevent the ejector assembly 22 from interfering with the punch 21, and further ensure that the ejector assembly 22 automatically ejects the sample after the punch 21 cuts the sample, which is convenient for operation.

[0062] like Figure 4 and Figure 8 As shown, in some examples, the stopper 222 of the ejection assembly 22 can be threadedly connected to the matching portion 211 of the punch 21, which can improve the stability of the connection between the ejection assembly 22 and the punch 21 and facilitate disassembly and assembly.

[0063] like Figure 8 and Fig. 9 As shown, in some examples, the outer side wall of the portion of the matching portion 211 located outside the sleeve 23 has a mounting protrusion 2112, and one end of the cutter head 212 close to the matching portion 211 (such as Fig. 9 The inner side wall of the upper end (as shown in FIG. 1 ) has a mounting groove 2121 and a limiting groove 2122, the mounting groove 2121 is connected to the limiting groove 2122, and the side of the mounting groove 2121 close to the matching portion 211 (as shown in FIG. Fig. 9The upper side as shown is open to form a mounting gap, and the cutter head portion 212 and the matching portion 211 are close to each other, so that the mounting protrusion 2112 can enter the mounting groove 2121 through the mounting gap, thereby realizing the positioning of the cutter head portion 212.

[0064] After the mounting protrusion 2112 enters the mounting groove 2121, the cutter head portion 212 and the matching portion 211 can rotate relative to each other, so that the mounting protrusion 2112 enters the limiting groove 2122 from the mounting groove 2121, and the side wall of the limiting groove 2122 can abut against the mounting protrusion 2112, thereby limiting the mounting protrusion 2112, improving the stability of the connection between the cutter head portion 212 and the matching portion 211, reducing the probability of the cutter head portion 212 and the matching portion 211 being separated, and facilitating the disassembly and assembly of the punch 21.

[0065] like Figure 1 and Fig.10 As shown, in some examples, the mounting base 10 includes: a base plate 11, a pillar 12 and a support base 13, the pillar 12 is arranged on the base plate 11, the support base 13 is arranged on the pillar 12, and the support base 13 and the base plate 11 are arranged at an interval, so that there can be a certain interval between the punch 21 and the base plate 11, which is convenient for placing the sample, and the support base 13 can slide relative to the pillar 12, so that the distance between the punch 21 and the base plate 11 can be adjusted, and the punch 21 can be used to punch samples of different thicknesses and samples of different hardnesses.

[0066] The support seat 13 has a limiting ring 131, and the stamping assembly 20 also includes: a sleeve 23 and an adjusting member 24. The driving assembly 30 is arranged on the sleeve 23, and the driving assembly 30 can abut against the sleeve 23. The punch 21 is arranged in the sleeve 23, so that the driving rod 32 in the driving assembly 30 can impact the punch 21 in the sleeve 23. The sleeve 23 can be penetrated by a limiting ring 131 to achieve the limitation of the sleeve 23, which can improve the stability of the punch 21 in punching the sample.

[0067] The adjusting member 24 is connected to the sleeve 23, and the adjusting member 24 can adjust the distance between the sleeve 23 and the bottom plate 11, thereby adjusting the distance between the punch 21 and the bottom plate 11, which can reduce the probability of the punch 21 accidentally injuring the operator when the operator takes and places the sample, thereby improving the safety of the operation.

[0068] like Figure 1 and Figure 3As shown, in some examples, the adjusting member 24 includes: a fourth elastic member 243, a connecting rod 241 and an operating rod 242, the support seat 13 can have two limiting rings 131, and the side wall of the sleeve 23 has a limiting block 232, the limiting block 232 is located between the two limiting rings 131, and the two limiting rings 131 can respectively abut against the limiting blocks 232 to achieve the limitation of the sleeve 23, preventing the sleeve 23 from passing through the limiting ring 131 to disengage from the support seat 13, which can improve the working stability of the punching device 100.

[0069] The fourth elastic member 243 is located on the side of the limiting block 232 away from the driving assembly 30 (eg Figure 3 As shown in the lower side, the two ends of the fourth elastic member 243 cooperate with the limit block 232 and the limit ring 131 respectively, and the operator can operate the adjustment member 24 to make the sleeve 23 move downward, so that the fourth elastic member 243 is compressed to store energy, and after the operator stops operating the adjustment member 24, the fourth elastic member 243 releases energy and extends to drive the sleeve 23 to move upward and reset, so as to facilitate the operator's next operation; it can be understood that the fourth elastic member 243 can be a spring, which has strong elastic deformation ability and low cost.

[0070] One end of the connecting rod 241 is rotatably connected to the support seat 13, one end of the operating rod 242 is rotatably connected to the other end of the connecting rod 241, and the middle part of the operating rod 242 is rotatably connected to the sleeve 23. Then, the operator grasps the operating rod 242 and presses the operating rod 242 downward to drive the sleeve 23 to move downward relative to the support seat 13. Based on the certain height of the support seat 13, the distance between the punch head 21 and the base plate 11 can be adjusted, which is convenient for the operator to take and place samples.

[0071] It is understandable that the operator can operate the operating rod 242 to press the sleeve 23 downward until the blade head 212 contacts the sample and then punches the sample, which can prevent the operator's fingers from extending between the blade head 212 and the sample, thereby improving the safety of the operation.

[0072] In some examples, a crank may be provided on the support seat 13, and a connecting rod may be provided between the crank and the sleeve 23, and the two ends of the connecting rod are respectively connected to the crank and the sleeve 23, so that the distance between the punch head 21 and the base plate 11 can be adjusted by rotating the crank; of course, a gear may be provided on the support seat 13, and a rack may be provided on the sleeve 23, and the gear and the rack are meshed, so that the distance between the punch head 21 and the base plate 11 can be adjusted by rotating the gear.

[0073] like Figure 1 and Fig.10 As shown, in some examples, the trigger switch 35 can be set on the base plate 11 to facilitate the operator to trigger it.

[0074] like Figure 1 and Fig.10 As shown, in some examples, the mounting base 10 also includes: a pad 14 and a mounting cover 15, the pad 14 is arranged on the base plate 11, and the pad 14 can be detachably connected to the base plate 11 for easy replacement, and the sample can be placed on the pad 14 to prevent the punch 21 from punching the base plate 11, thereby extending the service life of the base plate 11 by replacing the pad 14, and reducing the maintenance cost of the punching device 100.

[0075] The mounting cover 15 is disposed on the pillar 12 , and the mounting cover 15 is located above the support seat 13 , and the mounting cover 15 and the support seat 13 are spaced apart. The housing 36 of the driving assembly 30 can be connected to the mounting cover 15 to realize the installation of the driving assembly 30 , which is beneficial to improving the working stability of the punching device 100 .

[0076] In some examples, the sleeve 23 may include multiple cylinders, and the multiple cylinders may be threadedly connected in sequence to form a complete sleeve 23 for easy disassembly and assembly. The limit block 232 is set on one of the cylinders, and then the sleeve 23 can be taken in and out by disassembling the multiple cylinders, which is easy to operate.

[0077] In some examples, the sample may be a drug preparation such as a film and a patch. During the production process, the drug is dissolved and mixed with the film-forming material through hot melt extrusion or coating, and then dried to form a thin layer. The punching device 100 punches the thin layer through the punch 21, and the thin layer can be cut into a specific shape, which is beneficial for packaging the drug and facilitating quantitative administration.

[0078] Other structures and operations of the punching device 100 according to the embodiment of the utility model are known to those skilled in the art and will not be described in detail here. In the description of the utility model, "first feature" and "second feature" may include one or more of these features. Among them, the up-down direction, left-right direction and front-back direction are based on the up-down direction, left-right direction and front-back direction shown in the figure.

[0079] In the description of the present utility model, unless otherwise clearly specified and limited, a first feature "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature "above", "above" and "above" a second feature include that the first feature is directly above and obliquely above the second feature, or simply means that the first feature is higher in level than the second feature.

[0080] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0081] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A punching device, characterized in that: include: Mounting seat; A punch assembly, the punch assembly is arranged on the mounting seat and includes a punch and an ejector assembly, the punch has a mounting cavity with an open lower side, the ejector assembly is arranged in the mounting cavity and includes a limiter, an ejector pin and a first elastic member, the limiter is connected to the punch, the ejector pin is supported on the limiter and at least a portion of the ejector pin extends to the lower side of the lower end surface of the punch, and the first elastic member is arranged between the ejector pin and the bottom wall of the mounting cavity; A driving assembly, wherein the driving assembly is arranged on the mounting seat and is located above the stamping assembly, the driving assembly includes an electromagnetic coil and a driving rod, at least a portion of the driving rod is a magnetic member, the electromagnetic coil is arranged on the outside of the driving rod, and the electromagnetic coil is suitable for driving the driving rod to move when powered on so that the driving rod cooperates with the punch to move the punch and the ejection assembly.

2. The punching device according to claim 1, characterized in that: The driving component also includes: a capacitor and a control knob, the capacitor can be connected to a power supply, the electromagnetic coil is connected to the capacitor with a trigger switch provided therebetween, and the control knob is used to adjust the charging capacity of the capacitor.

3. The punching device according to claim 2, characterized in that: Also includes: A heat dissipation fan and a temperature detection component, wherein the heat dissipation fan is arranged opposite to the electromagnetic coil, the temperature detection component is used to detect the temperature of the electromagnetic coil, and the heat dissipation fan communicates with the temperature detection component to operate when the temperature detection component detects that the temperature of the electromagnetic coil reaches a preset temperature.

4. The punching device according to claim 3, characterized in that: Also includes: A relay, the relay can be connected to a power supply and communicate with the temperature detection component, the cooling fan and the capacitor are connected to the relay respectively, and the relay is configured to connect the capacitor to the power supply when the temperature detection component detects that the temperature of the electromagnetic coil is lower than a preset temperature, and control the cooling fan to operate and disconnect the capacitor from the power supply when the temperature detection component detects that the temperature of the electromagnetic coil reaches a preset temperature.

5. The punching device according to claim 3, characterized in that: The drive assembly also includes a shell, which is connected to the mounting seat. The opposite side walls of the shell have heat dissipation ports respectively. The shell is provided with a first mounting frame and a second mounting frame located between the opposite side walls and arranged oppositely. The electromagnetic coil is provided on the first mounting frame, and the heat dissipation fan is provided on the second mounting frame.

6. The punching device according to claim 1, characterized in that: The driving rod includes a magnetic rod and a push rod. The magnetic rod is a magnetic part and at least a portion of it is arranged on a side of the electromagnetic coil away from the stamping assembly. At least a portion of the push rod is located in the electromagnetic coil and connected to the magnetic rod. The push rod is suitable for cooperating with the punch so that the punch can punch and cut the sample.

7. The punching device according to claim 1, characterized in that: A limiting boss is disposed at the upper end of the driving rod, and a second elastic member is disposed between the limiting boss and the electromagnetic coil, wherein the second elastic member is suitable for compressing and storing energy when the electromagnetic coil drives the driving rod to move.

8. The punching device according to claim 1, characterized in that: The stamping assembly also includes: a sleeve, the punch includes a matching portion and a tool head portion, the bottom of the sleeve has a limiting flange, the middle portion of the limiting flange defines an avoidance opening, the matching portion is movably arranged on the sleeve and a third elastic member is provided between the matching portion and the limiting flange, the tool head portion is located outside the sleeve and connected to the matching portion, and the matching portion defines the installation cavity.

9. The punching device according to any one of claims 1 to 8, characterized in that: The mounting seat includes: a base plate, a pillar and a support seat, the pillar is arranged on the base plate, the support seat is arranged on the pillar and is spaced apart from the base plate, the support seat has a limiting ring, and the stamping assembly also includes: a sleeve and an adjusting member, the driving assembly is arranged on the sleeve and abuts against the sleeve, the punch is arranged in the sleeve, the sleeve is suitable for passing through the limiting ring, and the adjusting member is connected to the sleeve for adjusting the distance between the sleeve and the base plate.

10. The punching device according to claim 9, characterized in that: The adjusting member comprises: a fourth elastic member, a connecting rod and an operating rod. The side wall of the sleeve has a limit block. The fourth elastic member is located on a side of the limit block away from the driving assembly. Both ends of the fourth elastic member cooperate with the limit block and the limit ring respectively. One end of the connecting rod is rotatably connected to the supporting seat, one end of the operating rod is rotatably connected to the other end of the connecting rod, and the middle part of the operating rod is rotatably connected to the sleeve.

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