Counting control switch and method of operating the same

Abstract

The present application relates to the technical field of character matrix printing equipment, and discloses a counting control switch and an operating method thereof.The counting control switch comprises a switch main body, a symbol disc and a knob, the symbol disc is uniformly provided with a plurality of symbols along the circumference thereof, each symbol corresponds to a printing division, the plurality of symbols on the symbol disc are completely same as the printing symbols on the character wheel of a printing mechanism, and the knob has a first position and a second position;the knob is configured to rotate in a first direction and rotate from the first position to the second position relative to the symbol disc, rotate in a second direction and drive the symbol disc to jointly rotate from the second position to the first position, so that the symbol disc rotates by one printing division, and the character wheel rotates by one printing division correspondingly.The counting control switch provided by the present application can know the to-be-printed symbol on the character wheel through the pointing direction of the knob indicating end, is clear and intuitive, and can reduce the overall size of the counting control switch, facilitate production and installation, compared with the prior art.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of character matrix printing equipment, and particularly relates to a counting control switch and an operating method thereof. BACKGROUND

[0002] In the processing of some sheet metal parts, a printing mechanism of a stamping die is usually used to print on the sheet metal parts. A plurality of printing character matrices are arranged on the circumferential surface of a character wheel of the printing mechanism. The printing character matrices are provided with symbols to be printed, such as numbers or letters.

[0003] The knob control switch is a common adjusting and controlling mechanism of many mechanical devices and is also common on the printing mechanism. In the prior art, the control switch on the printing mechanism usually consists of two grades of 'on' and 'off'. The control switch is rotated from 'off' to 'on' and then from 'on' to 'off' to control the rotation of the character wheel by one symbol. However, when the order of the symbols to be printed on the sheet metal part is different from that of the symbols on the character wheel, the symbol printed each time needs to be manually recorded to facilitate the rotation of the control switch to the symbol to be printed next time. Otherwise, the current symbol needs to be checked in the die each time, which greatly increases the workload.

[0004] In addition, the prior art also provides a control switch. The panel of the control switch is marked with a plurality of symbols. The symbols are the same in style and order as the symbols on the character wheel. One end of the control switch can point to any symbol. However, the control switch can only be rotated in one direction. The rotation of the control switch by one degree is 'on', and the rotation of the control switch by the second degree is 'off', which controls the rotation of the character wheel by one symbol. If the character wheel has 10 symbols, 20 degrees need to be marked on the panel. One symbol is marked at each interval. The first degree of the control switch points to the blank degree, and the second degree of the control switch points to the corresponding symbol, so that the symbol printed in the die can be known. However, the overall size of the control switch is relatively large, which is not convenient for installation and use, and the practicability is poor.

[0005] Therefore, it is urgent to provide a counting control switch and an operating method thereof to solve the above problems. SUMMARY

[0006] According to one aspect of the present application, the purpose of the present application is to provide a counting control switch. When used, the pointing direction of the knob can know the symbol to be printed on the current character wheel, which is clear and intuitive, and the size is relatively small, which is convenient for production and installation.

[0007] To achieve the above purpose, the present application realizes the following technical scheme:

[0008] The application discloses a counting control switch applied to a marking mechanism, which comprises a switch main body, a symbol disc and a knob. The symbol disc is arranged on the switch main body, and a plurality of symbols are uniformly arranged on the symbol disc along the circumferential direction of the symbol disc. Each symbol corresponds to a marking degree, and the symbols on the symbol disc are completely same as the marking symbols on a character wheel of the marking mechanism. The knob is rotationally arranged on the switch main body and has a first position and a second position. An indicating end of the knob can point to the corresponding symbol on the symbol disc.

[0009] The knob is configured to rotate in a first direction and rotate from the first position to the second position relative to the symbol disc, then rotate in a second direction and drive the symbol disc to rotate back from the second position to the first position together, so that the symbol disc rotates at least one marking degree, and the character wheel rotates at least one marking degree correspondingly. The first direction and the second direction are opposite.

[0010] As an optional solution, the knob comprises a knob body and an elastic plunger arranged on the knob body.

[0011] A plurality of insertion holes are uniformly arranged on the surface of the symbol disc along the circumferential direction of the symbol disc. The insertion holes are arranged one by one corresponding to the symbols on the symbol disc. The elastic plunger can be selectively inserted into the corresponding insertion hole.

[0012] As an optional solution, the elastic plunger comprises:

[0013] A barrel is fixed to the knob body. An accommodating hole extending along the axial direction of the barrel and penetrating through one end of the barrel is arranged in the barrel.

[0014] A plunger body is arranged in the accommodating hole. One end of the plunger body is arranged in the accommodating hole, and the other end of the plunger body extends out of the barrel.

[0015] An elastic member is arranged in the accommodating hole. One end of the elastic member is connected with the barrel, and the other end of the elastic member is connected with the plunger body. The plunger body can be selectively inserted into the corresponding insertion hole.

[0016] As an optional solution, an arc slide is arranged between two adjacent insertion holes. The slope surface of the arc slide is configured as an inclined slope surface. The inclined slope surface is arranged from low to high along the first direction.

[0017] As an optional solution, the symbol disc comprises a symbol disc body and a gear disc connected coaxially, the symbols are arranged on the front surface of the symbol disc body, the gear disc is arranged on the back surface of the symbol disc body, the periphery of the gear disc is formed with a plurality of gear teeth, the slot is formed between two adjacent gear teeth, and the gear teeth are inclined towards the first direction so that the slot is also inclined towards the first direction.

[0018] The edge of the switch body is provided with a spring sheet which can be selectively inserted into the corresponding slot.

[0019] As an optional solution, the switch body comprises a base and a mounting disc fixed on the base, the symbol disc is arranged on the mounting disc, and the knob is rotationally connected with the base.

[0020] As an optional solution, the mounting disc is formed with a receiving groove, and the symbol disc is arranged in the receiving groove.

[0021] As an optional solution, a connecting column is formed at the center of the base, the connecting column sequentially penetrates the mounting disc and the symbol disc, a threaded hole is formed in the connecting column, an installation hole is formed at the center of the knob, a fastener sequentially penetrates the installation hole and the threaded hole to connect the knob with the base, and the knob can rotate around the fastener.

[0022] As an optional solution, the count control switch further comprises a panel which is buckled on the switch body and covers the symbol disc, a notch is formed in the panel, and the symbol in the first position of the symbol disc can be exposed from the notch.

[0023] According to another aspect of the present application, the purpose of the present application is to also provide a count control switch two-equal operation method, by operating the above technical control switch, the dial can be rotated by one printing division, the pointing direction of the knob can know the symbol to be printed on the current dial, which is clear and intuitive, and the size is smaller.

[0024] To achieve the above purpose, the present application realizes the following technical solutions:

[0025] The operation method of the count control switch is used for operating the count control switch according to any one of the above technical solutions, and the specific steps include:

[0026] Step S1: rotating the knob in the first direction so that the knob is rotated from the first position to the second position relative to the symbol disc;

[0027] Step S2: rotating the knob along the second direction to make the knob drive the symbol disc to jointly rotate from the second position to the first position, at this time, the symbol disc rotates one engraved degree, corresponding to control the dial to rotate one engraved degree.

[0028] The present application has the following advantages:

[0029] The counting control switch provided by the present application is used as follows: first, rotate the knob along the first direction to make it rotate from the first position to the second position relative to the symbol disc, at this time, the indicating end of the knob points to a symbol, and the counting control switch is in the "on" state; then, rotate the knob along the second direction to make it drive the symbol disc to jointly rotate from the second position to the first position, at this time, the indicating end of the knob still points to the symbol, and the counting control switch is in the "off" state; only two rotations are needed to make the symbol disc rotate one engraved degree, i.e., the symbol disc jumps one symbol; one on and one off correspond to control the dial to rotate one engraved degree. Since the symbols on the symbol disc are completely the same as the engraved symbols on the dial, the pointing direction of the indicating end of the knob can indicate the symbol to be engraved on the dial, which is clear and intuitive; the counting control switch can achieve the switching function and counting function; only two rotations of the knob make the symbol disc rotate one engraved degree, which can reduce the size of the symbol disc, thereby reducing the overall size of the counting control switch, facilitating production and installation, and improving the practicability. BRIEF DESCRIPTION OF DRAWINGS

[0030] In order to more clearly and easily illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed in the following embodiment or prior art description will be briefly introduced, and the following drawings are some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0031] Figure 1 is a structural schematic diagram of the counting control switch provided by the embodiment of the present application;

[0032] Figure 2 is an exploded view of the counting control switch provided by the embodiment of the present application;

[0033] Figure 3 is a structural schematic diagram of the counting control switch after the panel is hidden provided by the embodiment of the present application;

[0034] Figure 4 is an operation flowchart of the counting control switch provided by the embodiment of the present application;

[0035] Figure 5 is an axial sectional view of the elastic plunger provided by the embodiment of the present application;

[0036] Figure 6 is an exploded view of the mounting disc and the symbol disc provided by the embodiment of the present application;

[0037] Figure 7 is a matching schematic view of the symbol disc and the spring provided by the embodiment of the present application.

[0038] In the figure:

[0039] 1, switch main body; 11, base; 111, connecting column; 12, mounting disc; 121, accommodating groove; 13, spring;

[0040] 2, symbol disc; 21, symbol disc body; 211, symbol; 212, jack; 213, circular arc landslide; 22, gear disc; 221, gear tooth; 222, insertion slot;

[0041] 3, knob; 31, knob body; 311, mounting hole; 32, elastic plunger; 321, barrel; 322, plunger body; 323, elastic member; 324, accommodating hole; 33, indicating end;

[0042] 4, fastener;

[0043] 5, panel; 51, notch; 52, arc-shaped hole. DETAILED DESCRIPTION

[0044] The present application will be further described below in conjunction with the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the present application, but not to limit the present application. In addition, it should be noted that, for the convenience of description, only the parts related to the present application are shown in the drawings, but not all the structures.

[0045] In the description of the present application, unless otherwise explicitly specified and limited, the terms "connected", "connected", "fixed" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0046] In the present application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature can include that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the first feature "on", "above" and "over" the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the first feature is higher in horizontal height than the second feature. The first feature "under", "below" and "under" the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the first feature is lower in horizontal height than the second feature.

[0047] In the description of the present embodiment, the terms "upper", "lower", "left", "right" and the like orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first" and "second" are only used to distinguish in description and have no special meaning.

[0048] As Figure 1 shown, the present embodiment provides a counting control switch applied to a marking mechanism (not shown) of a stamping die, wherein the stamping die is mainly used for stamping processing of automobile sheet metal parts, and the marking mechanism is a core part of the stamping die. The marking mechanism mainly includes a workbench, a wheel, a driving module, a control module and the above-mentioned counting control switch. The wheel is rotatably arranged on the workbench, the wheel is connected to the output end of the driving module, the counting control switch can be embedded on the workbench, the counting control switch and the driving module are electrically connected with the control module, the counting control switch can control the driving module to act through the control module, so as to drive the driving module to drive the wheel to rotate. It should be noted that the driving module can be a combination of a motor and a gear, the gear is engaged with the wheel for transmission, or a combination of a cylinder and a rack and pinion, or a motor directly drives a rotating shaft, the rotating shaft drives the wheel to rotate, any of the above driving modes can be used, which is not specifically limited here.

[0049] Specifically, as Figure 2 and Figure 3As shown, the counting control switch provided by the embodiment comprises a switch body 1, a symbol disc 2 and a knob 3. The switch body 1 can be embedded on a workbench of a marking mechanism. The symbol disc 2 is arranged on the switch body 1. A plurality of symbols 211 are uniformly arranged on the symbol disc 2 along the circumferential direction. Each symbol 211 corresponds to a marking degree. The plurality of symbols 211 on the symbol disc 2 are completely same as the marking symbols on a wheel of the marking mechanism. Here, the same means that the style and sequence of the symbols 211 are same. The knob 3 is rotationally arranged on the switch body 1 and has a first position and a second position. An indicating end 33 of the knob 3 can point to a corresponding symbol 211 on the symbol disc 2. The knob 3 is configured to rotate in a first direction and rotate from the first position to the second position relative to the symbol disc 2, rotate in a second direction and drive the symbol disc 2 to jointly rotate from the second position to the first position, so as to rotate the symbol disc 2 by one marking degree, and correspondingly control the wheel to rotate by one marking degree. The first direction and the second direction are opposite.

[0050] Reference Figure 4 For the convenience of description, the first direction is defined as the clockwise direction, the second direction is defined as the counterclockwise direction, and the symbols 211 on the symbol disc 2 are arranged as twelve, which are numbers 1 to 9 and letters X, Y and Z. The operation process of the counting control switch will be described below by taking the switching of symbols "1" and "2" as an example. Figure 4 a, the knob 3 is in the first position, i.e., points to the position of "1". In use, the knob 3 is first rotated in the clockwise direction by an angle of 30°, so as to rotate from the first position to the second position relative to the symbol disc 2, i.e., the symbol disc 2 is stationary, and the knob 3 is switched from the position of pointing to "1" to the position of pointing to "2", as shown in Figure 4 b, at this time, the counting control switch is in the "on" state. The knob 3 is further rotated in the counterclockwise direction by an angle of 30°, and drives the symbol disc 2 to jointly rotate from the second position to the first position, i.e., the symbol disc 2 rotates together with the knob 3 in the counterclockwise direction to the first position. At this time, the knob 3 still points to the position of "2", as shown in Figure 4 c, the counting control switch is in the "off" state. In this way, the symbol disc 2 rotates by one marking degree. The on-off signal makes the control module control the driving module to act, and the driving module correspondingly controls the wheel to rotate by one marking degree. At this time, the symbol to be marked on the wheel is "2". If the symbol is not the symbol to be marked on the sheet metal part, the knob 3 is continuously rotated in the clockwise direction and the counterclockwise direction, and the rotation is repeated until the symbol 211 at the first position is the symbol to be marked on the sheet metal part. Then, the corresponding switch on the stamping die is controlled to perform the stamping operation.

[0051] It can be understood that the control module is prior art, and any control module and electrical connection mode capable of achieving the above functions can be adopted in the embodiment, and details are not described herein. In addition, it should be noted that the above description is only an example, and in other embodiments, the symbols 211 on the symbol disc 2 can also be other numbers, letters or symbols, the rotation angle of the knob 3 can be adaptively adjusted according to the number of symbols 211, and the first direction and the second direction can also be interchanged, which is not limited herein.

[0052] Since the plurality of symbols 211 on the symbol disc 2 are completely same as the engraved symbols on the dial of the engraving mechanism, the pointing of the indicating end 33 of the knob 3 at the first position can know the symbol to be engraved on the current dial, which is clear and intuitive, and convenient to operate, so that the counting control switch can achieve both switching and counting functions. By rotating the knob 3 twice, the symbol disc 2 only rotates one engraved degree, and compared with the prior art, the plurality of symbols 211 on the symbol disc 2 are more compact, so that the size of the symbol disc 2 can be reduced, thereby reducing the overall size of the counting control switch, facilitating production and installation, and improving practicability.

[0053] Further, as shown in Figure 2 , the switch body 1 comprises a base 11 and a mounting disc 12 fixed on the base 11, and the base 11 and the mounting disc 12 are coaxially locked by screws. The mounting disc 12 is a square structure, the symbol disc 2 is a circular structure, the symbol disc 2 is coaxially arranged on the mounting disc 12, and the knob 3 is rotationally connected with the base 11 and coaxially arranged with the symbol disc 2. Preferably, a receiving groove 121 matching the shape of the symbol disc 2 is formed in the mounting disc 12, and the symbol disc 2 is received in the receiving groove 121. First, the receiving groove 121 can position the placement position of the symbol disc 2 to facilitate the placement of the symbol disc 2 during installation. Second, the structure is more compact and the thickness is reduced.

[0054] Further, as shown in Figure 2 and Figure 3 , the knob 3 comprises a knob body 31 and an elastic plunger 32 arranged on the knob body 31. The outer wall of the elastic plunger 32 is formed with external threads, and one end of the knob body 31 is provided with a threaded hole. The elastic plunger 32 is threadedly connected in the threaded hole, which is stable in connection and convenient to disassemble and assemble. The surface of the symbol disc 2 is uniformly provided with a plurality of insertion holes 212 along the circumference thereof. The plurality of insertion holes 212 are arranged one by one corresponding to the symbols 211 on the symbol disc 2, i.e., the insertion holes 212 are located directly below the corresponding symbols 211, and the insertion holes 212 are located on the rotation path of the elastic plunger 32, and the elastic plunger 32 can be selectively inserted into the corresponding insertion hole 212.

[0055] For example, referring to Figure 3When the knob body 31 is located at the first position, the end of the elastic plunger 32 is inserted into the insertion hole 212 below the symbol 211 indicated by the indicating end 33, and when the knob body 31 is rotated from the first position to the second position, the symbol plate 2 is fixed, and as the knob body 31 is rotated, the end of the elastic plunger 32 is elastically deformed and moved out of the insertion hole 212 below the symbol 211 at the first position. When the knob body 31 is rotated to the second position, the end of the elastic plunger 32 is inserted into the insertion hole 212 below the symbol 211 indicated by the indicating end 33 at the second position, and at this time, the elastic plunger 32 can drive the symbol plate 2 to rotate in the second direction through the insertion hole 212. Through the cooperation of the elastic plunger 32 and the insertion hole 212, in the rotation process in the first direction, the elastic plunger 32 can be assisted to rotate by a corresponding angle, and it is ensured that each rotation will not be insufficient or excessive, and in the rotation process in the second direction, the insertion hole 212 can limit the elastic plunger 32 to form a limiting effect, so that the knob body 31 can drive the symbol plate 2 to rotate together in the second direction.

[0056] Preferably, as shown in Figure 3 and Figure 6 , an arc slide 213 is arranged between the two adjacent insertion holes 212, and the arc slide 213 is also located on the rotation path of the elastic plunger 32. The slope surface of the arc slide 213 is configured as an inclined slope surface, and in the axial direction of the symbol plate 2 and from the back surface to the front surface (the surface provided with the symbol 211) of the symbol plate 2, the inclined slope surface is arranged from low to high in the first direction, that is, in the axial direction from the back surface to the front surface of the symbol plate 2, the slope surface of the arc slide 213 is a slope surface from low to high, and one end is in communication with the previous insertion hole 212, and the other end is in abutment with the next insertion hole 212. Through this arrangement, in the rotation process in the first direction, the arc slide 213 can guide the elastic plunger 32 to form a guiding effect, so that the elastic plunger 32 can reduce resistance during rotation, thereby making it more convenient to switch the elastic plunger 32 from one insertion hole 212 to another insertion hole 212.

[0057] Specifically, as shown in Figure 5As shown, the elastic plunger 32 comprises a cylinder 321, a plunger body 322 and an elastic member 323, the cylinder 321 is threadedly connected to the knob body 31, the cylinder 321 is internally provided with an accommodating hole 324 extending along the axial direction and penetrating through one end of the cylinder 321, one end of the plunger body 322 is arranged in the accommodating hole 324 and the other end extends out of the cylinder 321; the elastic member 323 is arranged in the accommodating hole 324, one end of the elastic member 323 is connected to the cylinder 321 and the other end is connected to the plunger body 322, and the plunger body 322 can be selectively inserted into the corresponding insertion hole 212. During the rotation of the knob body 31 from the first position to the second position, the plunger body 322 is in sliding cooperation with the circular arc slide 213, and as the height of the circular arc slide 213 gradually increases, the plunger body 322 gradually retracts into the accommodating hole 324, and when the knob body 31 is rotated to the second position, under the elastic restoring force of the elastic member 323, the plunger body 322 is ejected into the insertion hole 212 corresponding to the second position. Preferably, the elastic member 323 is a spring.

[0058] Further, in combination with Figure 6 and Figure 7 , the symbol plate 2 comprises a symbol plate body 21 and a gear plate 22 coaxially connected, a plurality of symbols 211 are arranged on the front surface of the symbol plate body 21, the gear plate 22 is arranged on the back surface of the symbol plate body 21, the gear plate 22 and the symbol plate body 21 can be directly integrally formed or separately manufactured and then fixedly connected together, the periphery of the gear plate 22 is formed with a plurality of gear teeth 221, an insertion slot 222 is formed between two adjacent gear teeth 221, the insertion slot 222 is inclined towards the first direction, the edge of the mounting plate 12 is provided with an elastic sheet 13, and the elastic sheet 13 can be selectively inserted into the corresponding insertion slot 222.

[0059] Exemplarily, Figure 7The first direction in the figure is counterclockwise, and the second direction is clockwise. When the knob body 31 is rotated from the first position to the second position, the elastic sheet 13 is clamped into the corresponding slot 222, thereby limiting the rotation of the symbol disc 2 in the first direction and preventing the symbol disc 2 from rotating together with the knob 3 when the knob 3 rotates in the first direction. When the knob 3 rotates in the second direction, the slot 222 faces the first direction, so that the elastic sheet 13 cannot limit the symbol disc 2 during rotation in the second direction, thereby enabling the knob 3 to drive the symbol disc 2 to rotate together in the second direction. When the symbol disc 2 rotates in the second direction by one engraved degree, the elastic sheet 13 can slide along the upper end surface of the corresponding tooth 221 and be deformed until it is clamped into the next slot 222 and is reset. The elastic sheet 13 is clamped into the clamping groove on the top of the mounting disc 12, and the end of the elastic sheet 13 is inclined downward at a certain angle, thereby achieving better limiting effect. The tooth 221 is inclined toward the first direction, and the upper end surface of the tooth 221 is a circular arc surface bent toward the axis of the gear disc 22, thereby enabling the elastic sheet 13 to smoothly slide along the upper end surface of the tooth 221 when the symbol disc 2 rotates in the second direction.

[0060] Further, as shown in Figure 2 In order to realize the rotatable connection between the knob 3 and the base 11, a connecting column 111 is formed at the center of the base 11, the connecting column 111 penetrates the mounting disc 12 and the symbol disc 2 in sequence, a threaded hole (not shown in the figure) is formed in the connecting column 111, a mounting hole 311 is formed at the center of the knob 3, the mounting hole 311 is a light hole, a fastener 4 penetrates the mounting hole 311 and the threaded hole in sequence, and the head of the fastener 4 can abut against the stepped surface of the side wall of the mounting hole 311 to connect the knob 3 to the base 11, but the fastener 4 does not lock the knob 3, thereby enabling the knob 3 to rotate around the fastener 4. The fastener 4 can be a bolt or a lock, which is stable in connection and convenient to disassemble and assemble.

[0061] Preferably, as shown in Figure 1 and Figure 2 The counting control switch further includes a panel 5, which is buckled on the mounting disc 12 of the switch body 1 and locked by a screw, and can cover the symbol disc 2 to protect the symbol disc 2. A notch 51 is formed in the panel 5, and the symbol 211 at the first position on the symbol disc 2 can be exposed from the notch 51, so that the symbol to be engraved on the current dial can be seen from the notch 51, which is clear and intuitive. An arc-shaped hole 52 is formed in the panel 5 corresponding to the position of the elastic plunger 32 to form an avoidance for the elastic plunger 32, so that the elastic plunger 32 can penetrate the arc-shaped hole 52 and be inserted into the insertion hole 212 on the symbol disc 2.

[0062] The embodiment also provides an operation method of the counting control switch, which is used for operating the counting control switch, and the specific steps include:

[0063] Step S1: rotating the knob 3 in a first direction to make the knob 3 rotate relative to the symbol plate 2 from a first position to a second position;

[0064] Step S2: rotating the knob 3 in a second direction to make the knob 3 drive the symbol plate 2 to rotate together from the second position to the first position, at this time the symbol plate 2 rotates one engraved degree, corresponding to the control wheel rotating one engraved degree.

[0065] By performing the above operation steps, the symbol plate 2 can rotate one engraved degree, and the knob 3 is rotated twice to realize one opening and one closing signal, the control module receives the signal to control the driving module to act, and the driving module controls the control wheel to rotate one engraved degree. Since the symbols 211 on the symbol plate 2 are completely the same as the engraved symbols on the control wheel of the engraving mechanism, the pointing of the indicating end 33 of the knob 3 at the first position can know the to-be-engraved symbol on the control wheel, which is clear and intuitive, and convenient to operate. The counting control switch can achieve the opening and closing effect and counting, and the symbol plate 2 only rotates one engraved degree by rotating the knob 3 twice, and the symbols 211 on the symbol plate 2 are more compact relative to the prior art, so that the size of the symbol plate 2 can be reduced, thereby reducing the overall size of the counting control switch, facilitating production and installation, and improving the practicability.

[0066] Obviously, the above embodiments of the present application are only examples for clearly illustrating the present application, and are not intended to limit the implementation modes of the present application. Based on the above description, other different forms of changes or variations can be made by those skilled in the art. Here, all the implementation modes are not required or can not be exhausted. Any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the claims of the present application.

Claims

1. A counting control switch, applied to an engraving mechanism, characterized in that, The counting control switch includes a switch body (1), a symbol disk (2), and a knob (3). The symbol disk (2) is disposed on the switch body (1). A number of symbols (211) are evenly arranged on the symbol disk (2) along its circumference. Each symbol (211) corresponds to a marking division. The symbols (211) on the symbol disk (2) are exactly the same as the marking symbols on the character wheel of the marking mechanism. The knob (3) is rotatably disposed on the switch body (1) and has a first position and a second position. The indicator end (33) of the knob (3) can point to the corresponding symbol (211) on the symbol disk (2). The knob (3) is configured to first rotate along the first direction and rotate relative to the symbol disk (2) from the first position to the second position, and then rotate along the second direction and drive the symbol disk (2) to rotate back from the second position to the first position, so that the symbol disk (2) rotates by one engraving division, correspondingly controlling the character wheel to rotate by one engraving division, with the first direction and the second direction being opposite; The knob (3) includes a knob body (31) and an elastic plunger (32) disposed on the knob body (31). The surface of the symbol disk (2) is uniformly provided with a plurality of insertion holes (212) along its circumference. The plurality of insertion holes (212) are provided in a one-to-one correspondence with the symbols (211) on the symbol disk (2). The elastic plunger (32) can be selectively inserted into the corresponding insertion hole (212). The resilient plunger (32) includes: The cylindrical body (321) is fixed on the knob body (31), and the cylindrical body (321) has a receiving hole (324) extending along its axial direction and penetrating one end. A plunger body (322), one end of which passes through the receiving hole (324) and the other end extends out of the cylinder (321); An elastic element (323) is disposed in the receiving hole (324), and one end of the elastic element (323) is connected to the cylinder (321), and the other end is connected to the plunger body (322). The plunger body (322) can be selectively inserted into the corresponding insertion hole (212). An arc-shaped landslide (213) is provided between two adjacent insertion holes (212). The slope of the arc-shaped landslide (213) is an inclined slope, which is set from low to high along the first direction. The counting control switch also includes a panel (5), which is attached to the switch body (1) and covers the symbol disk (2). The panel (5) has a notch (51) and the symbol (211) at the first position on the symbol disk (2) can be exposed through the notch (51).

2. The counting control switch according to claim 1, characterized in that, The symbol disk (2) includes a symbol disk body (21) and a gear disk (22) coaxially connected. A plurality of symbols (211) are disposed on the front side of the symbol disk body (21), and the gear disk (22) is disposed on the back side of the symbol disk body (21). A plurality of gear teeth (221) are formed on the periphery of the gear disk (22), and a slot (222) is formed between two adjacent gear teeth (221). The slot (222) is inclined toward the first direction. The edge of the switch body (1) is provided with a spring (13), which can be selectively inserted into the corresponding slot (222).

3. The counting control switch according to any one of claims 1-2, characterized in that, The switch body (1) includes a base (11) and a mounting plate (12) fixed on the base (11). The symbol plate (2) is disposed on the mounting plate (12), and the knob (3) is rotatably connected to the base (11).

4. The counting control switch according to claim 3, characterized in that, The mounting plate (12) has a receiving groove (121) formed therein, and the symbol plate (2) is housed in the receiving groove (121).

5. The counting control switch according to claim 3, characterized in that, A connecting post (111) is formed at the center of the base (11). The connecting post (111) passes through the mounting plate (12) and the symbol plate (2) in sequence. A threaded hole (112) is provided on the connecting post (111). A mounting hole (311) is provided at the center of the knob (3). A fastener (4) passes through the mounting hole (311) and the threaded hole (112) in sequence to connect the knob (3) to the base (11). The knob (3) can rotate around the fastener (4).

6. A method for operating a counting control switch, used to operate the counting control switch as described in any one of claims 1-5, characterized in that, The specific steps include: Step S1: Rotate the knob (3) along the first direction so that the knob (3) relative to the symbol disk (2) rotates from the first position to the second position; Step S2: Rotate the knob (3) along the second direction so that the knob (3) drives the symbol disk (2) to rotate from the second position back to the first position. At this time, the symbol disk (2) rotates one engraving division, correspondingly controlling the character wheel to rotate one engraving division.

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