CN114261188A

CN114261188A - Test device for heating mechanism of cup baking machine

Info

Publication number: CN114261188A
Application number: CN202210085085.2A
Authority: CN
Inventors: 严若红; 戴智特; 刘敬言; 雷宝生
Original assignee: Dongguan Guixiang Insulation Material Co Ltd
Current assignee: Dongguan Guixiang Insulation Material Co Ltd
Priority date: 2022-01-25
Filing date: 2022-01-25
Publication date: 2022-04-01

Abstract

The invention relates to the field of heat transfer printing, in particular to a testing device for a heating mechanism of a cup baking machine, which comprises a shell, an operation panel and a control circuit, wherein the front surface of the shell is provided with the operation panel, the left side of the operation panel is provided with a digital display current voltmeter, and a voltage adjusting knob is arranged below the digital display current voltmeter; a plurality of groups of temperature control heating modules are sequentially arranged on the right side of the digital display current voltmeter on the operation panel, and each group of temperature control heating modules comprises a temperature control and measurement digital display meter, a protective tube and a switch button; the upper surface of the shell is provided with a group of wiring terminals corresponding to each group of temperature control heating modules, and the wiring terminals are connected with the heating mechanism of the cup baking machine through wires. By the testing device, a plurality of cup roasting machine heating mechanisms can be tested at the same time, and the testing efficiency is high; the heating mechanism can be used for testing the heating mechanisms of the cup baking machines with different rated voltages, and has the advantages of strong applicability, low equipment cost and high equipment utilization rate.

Description

Test device for heating mechanism of cup baking machine

Technical Field

The invention relates to the field of thermal transfer printing, in particular to a testing device for a heating mechanism of a cup baking machine.

Background

The heating mechanism is the most important mechanism in the cup roasting machine; the quality and the service life of the heating mechanism directly influence the quality and the service life of the cup baking machine; therefore, before the cup baking machine is delivered to a customer, it is necessary to test the heating mechanism of the cup baking machine so as to ensure that the heating mechanism does not have the undesirable phenomena of blackening, bubbling and the like. At present, a testing device for a heating mechanism of a cup baking machine can only be used for testing the heating mechanism of the cup baking machine with a certain rated voltage, for example, the rated voltage is 220V; however, the rated voltages of the cup roasting machines exported to other countries are different, such as 110V, 127V, 230V, 240V, etc.; if the heating mechanisms of the cup roasting machine with different rated voltages are required to be tested, different testing devices are required to be configured according to different rated voltages, or high-power transformers with different grades are configured according to different rated voltages, so that the defects of high equipment cost, low equipment utilization rate, large workshop occupied area and the like are caused. Moreover, the existing testing device can only test one product at a time, and the testing efficiency is low.

Disclosure of Invention

The invention provides a testing device for a heating mechanism of a cup baking machine, which aims to overcome the defects of high equipment cost, low equipment utilization rate, large workshop occupied area, low testing efficiency and the like of the conventional testing device.

In order to solve the technical problems, the invention adopts the following technical scheme:

the utility model provides a roast cup machine heating mechanism's testing arrangement, includes casing, operating panel and control circuit, its characterized in that: the front surface of the shell is provided with the operation panel, the left side of the operation panel is provided with a digital display current voltmeter, and a voltage adjusting knob is arranged below the digital display current voltmeter; a plurality of groups of temperature control heating modules are sequentially arranged on the operation panel and positioned on the right side of the digital display current voltmeter, and each group of temperature control heating modules comprises a temperature control and measurement digital display meter, a protective tube and a switch button; the upper surface of the shell is provided with a group of wiring terminals corresponding to each group of temperature control heating modules, and the wiring terminals are connected with the heating mechanism of the cup baking machine through wires.

Furthermore, the control circuit comprises a solid-state control voltage stabilizing circuit, a solid-state control adjusting circuit, a plurality of solid-state voltage regulating modules, a voltage and current testing circuit and a plurality of temperature acquisition control modules; the number of the solid-state pressure regulating modules and the number of the temperature acquisition control modules are respectively equal to the number of the temperature control heating modules.

Furthermore, the input end of the solid-state control voltage stabilizing circuit is connected with a mains supply; the output end of the solid-state control voltage stabilizing circuit is connected with the input end of the solid-state control adjusting circuit; the output end of the solid-state control adjusting circuit is respectively connected with the first input ends of the plurality of solid-state voltage regulating modules; second input ends of the solid-state voltage regulating modules are respectively connected with mains supply; the output end of one of the solid-state voltage regulating modules is connected with the third end of one of the temperature acquisition control modules through the voltage and current testing circuit; the output ends of the rest of the solid-state voltage regulating modules are respectively and directly connected with the third ends of the rest of the temperature acquisition control modules; the first ends and the second ends of the plurality of temperature acquisition control modules are connected with a mains supply; the fifth end and the sixth end of the plurality of temperature acquisition control modules are respectively connected with the plurality of cup baking machine heating mechanisms and used for inputting the temperature data of each cup baking machine heating mechanism into the corresponding temperature acquisition control module; and the fourth ends of the plurality of temperature acquisition control modules are respectively connected with the plurality of cup roasting machine heating mechanisms and are used for controlling the heating state of each cup roasting machine heating mechanism.

Further, the solid-state control voltage stabilizing circuit comprises a transformer, a bridge rectifier, a three-terminal regulator, a fuse FU, a first electrolytic capacitor C1 and a second electrolytic capacitor C2; the two ends of a primary coil of the transformer are connected with a mains supply, the two ends of a secondary coil of the transformer are respectively connected with two alternating current input ends of the bridge rectifier, one direct current output end of the bridge rectifier is respectively connected with one end of a first electrolytic capacitor C1 and one end of a fuse FU, the other direct current output end of the bridge rectifier is respectively connected with the other end of the first electrolytic capacitor C1, the adjusting end of the three-terminal voltage stabilizer and one end of a second electrolytic capacitor C2, the other end of the fuse FU is connected with the input end of the three-terminal voltage stabilizer, and the output end of the three-terminal voltage stabilizer is connected with the other end of the second electrolytic capacitor C2.

Further, the solid-state control adjusting circuit comprises an adjustable resistor W and a plurality of current-limiting resistors; the number of the current limiting resistors is equal to that of the solid voltage regulating modules; one end of the adjustable resistor W is respectively connected with one end of the plurality of current-limiting resistors, and the plurality of current-limiting resistors are arranged in parallel; the other ends of the current-limiting resistors are respectively connected with the input ends of the solid-state voltage regulating modules.

Furthermore, the number of the solid-state pressure regulating module, the number of the temperature acquisition control module, the number of the temperature control heating module and the number of the current limiting resistors are all 6.

Furthermore, the voltage and current test circuit comprises a digital display current voltmeter and a current expander, one end of the current expander is connected with the output end of one of the solid-state voltage regulating modules, and the other end of the current expander is connected with the digital display current voltmeter.

The invention has the following beneficial effects:

1. the test device is provided with a plurality of groups of temperature control heating modules, and can test a plurality of heating mechanisms of the cup roasting machine with the same rated voltage at the same time, so that the test efficiency is greatly improved;

2. the testing device can adjust the output voltage according to the rated voltage of the heating mechanism of the cup roasting machine, one testing device can test the heating mechanisms of the cup roasting machine with different rated voltages, and the testing device has strong applicability, low equipment cost and high equipment utilization rate;

3. the control circuit is provided with the solid-state control voltage stabilizing circuit, the solid-state control adjusting circuit and the solid-state voltage adjusting module, so that stable and adjustable voltage is guaranteed to be provided for the heating mechanism of the cup roasting machine;

4. a voltage and current test circuit is arranged between one of the solid voltage regulating modules and one of the temperature acquisition control modules to detect the current and voltage supplied to the heating mechanism of the cup roasting machine, so that the requirement of rated voltage of the heating mechanism of the cup roasting machine is met; and the digital display current voltmeter is adopted, so that the identification by an operator is facilitated;

5. the temperature acquisition control module has the functions of temperature acquisition and temperature setting, and when the temperature of the heating mechanism of the cup baking machine reaches the set temperature, the temperature acquisition control module can immediately stop supplying power to the heating mechanism of the cup baking machine, so that the automatic control of the test process is realized, and the heating mechanism of the cup baking machine is prevented from being damaged due to overhigh temperature.

Drawings

FIG. 1 is a schematic structural diagram of a testing device of a heating mechanism of a cup roaster according to the present invention.

FIG. 2 is a functional block diagram of a control circuit of the testing device of the heating mechanism of the cup roaster according to the present invention.

FIG. 3 is a circuit diagram of a control circuit of the testing device of the heating mechanism of the cup roaster according to the present invention.

FIG. 4 is a circuit diagram of a solid state control voltage regulator circuit of the testing device of the cup roaster heating mechanism according to the present invention.

FIG. 5 is a circuit configuration diagram of a voltage and current test circuit of the test device of the heating mechanism of the cup roaster of the present invention,

FIG. 6 is a circuit diagram of a temperature acquisition control module of the testing device of the heating mechanism of the cup roaster according to the present invention.

Description of reference numerals:

1-a shell; 2-a wiring terminal; 3-an operation panel; 4-digital display current voltmeter; 5-voltage adjusting knob; 6-temperature control heating module; 61-temperature control and temperature measurement digital display meter; 62-a protective tube; 63-switch button; 100-solid state control voltage stabilizing circuit; 101-a transformer; 102-a bridge rectifier; 103-a three-terminal regulator; 200-a solid state control regulation circuit; 300-a solid state voltage regulation module; 400-voltage and current test circuit; 401-a current spreader; 500-temperature acquisition control module.

Detailed Description

In order to facilitate understanding of those skilled in the art, the present invention will be further described with reference to the following examples and drawings, which are not intended to limit the present invention.

As shown in fig. 1, the testing device for the heating mechanism of the cup roasting machine provided by the invention comprises a shell 1, an operation panel 3 and a control circuit, wherein the operation panel 3 is arranged on the front surface of the shell 1, a digital display current voltmeter 4 is arranged on the left side of the operation panel 3, and a voltage adjusting knob 5 is arranged below the digital display current voltmeter 4; a plurality of groups of temperature control heating modules 6 are sequentially arranged on the right side of the digital display current voltmeter 4 on the operation panel 3, and each group of temperature control heating modules 6 comprises a temperature control and temperature measurement digital display meter 61, a protective tube 62 and a switch button 63; the upper surface of the shell 1 is provided with a group of wiring terminals 2 corresponding to each group of temperature control heating modules 6, and the wiring terminals 2 are connected with the heating mechanism of the cup baking machine through wires.

In practical application, each cup roasting machine heating mechanism is provided with an ntc temperature sensor and a heating film, wherein the ntc temperature sensor is used for detecting the temperature of the cup roasting machine heating mechanism, and the heating film is used for heating; when the cup baking machine is tested, a plurality of cup baking machine heating mechanisms with the same rated voltage are respectively connected with a plurality of groups of wiring terminals 2 of the testing device through wires, 4 wiring terminals 2 are arranged in each group, two wiring terminals 2 are connected with ntc temperature sensors in the cup baking machine heating mechanisms, and the other two wiring terminals 2 are connected with heating films in the cup baking machine heating mechanisms; the testing device is electrified, the switch button 63 corresponding to the heating mechanism of the cup roasting machine is turned on, and the voltage value in the digital display current voltmeter 4 is enabled to be in accordance with the rated voltage of the heating mechanism of the cup roasting machine by adjusting the voltage adjusting knob 5; and the multiple groups of temperature control heating modules 6 can simultaneously test a plurality of heating mechanisms of the cup roasting machine with the same rated voltage, thereby greatly improving the test efficiency.

As shown in fig. 2-3, in the present embodiment, the control circuit includes a solid-state control voltage stabilizing circuit 100, a solid-state control adjusting circuit 200, a plurality of solid-state voltage regulating modules 300, a voltage and current testing circuit 400, and a plurality of temperature acquisition control modules 500; the number of the solid-state pressure regulating modules 300 and the number of the temperature acquisition control modules 500 are respectively equal to the number of the temperature control heating modules 6.

In practical application, the solid-state control voltage stabilizing circuit 100 is arranged to output alternating current in commercial power as stable direct current; the solid state control adjusting circuit 200 is arranged to adjust the magnitude of the output direct current voltage; the size of alternating voltage input into each cup roasting machine heating mechanism is controlled by arranging a plurality of solid-state voltage regulating modules 300; the voltage and current test circuit 400 is arranged to measure the voltage input into the heating mechanism of the cup baking machine, so that the voltage is ensured to be consistent with the rated voltage of the heating mechanism of the cup baking machine; through setting up a plurality of temperature acquisition control module 500 in order to set for and gather the temperature of every roast cup machine heating mechanism, when the temperature of roast cup machine heating mechanism reaches the settlement temperature, temperature acquisition control module can stop immediately for roast cup machine heating mechanism power supply.

As shown in fig. 2 to 6, in the present embodiment, an input end of the solid-state control voltage stabilizing circuit 100 is connected to the mains; the output end of the solid-state control voltage stabilizing circuit 100 is connected with the input end of the solid-state control adjusting circuit 200; the output end of the solid-state control adjusting circuit 200 is respectively connected with the first input ends of the plurality of solid-state voltage regulating modules 300; second input ends of the solid-state voltage regulating modules 300 are respectively connected with mains supply; the output end of one of the solid-state voltage regulating modules 300 is connected with the third end of one of the temperature acquisition control modules 500 through the voltage and current testing circuit; the output ends of the rest of the solid-state voltage regulating modules 300 are respectively and directly connected with the third ends of the rest of the temperature acquisition control modules 500; the first ends and the second ends of the plurality of temperature acquisition control modules 500 are connected with the mains supply; the fifth end and the sixth end of the plurality of temperature acquisition control modules 500 are respectively connected with ntc temperature sensors in the plurality of cup baking machine heating mechanisms, and are used for inputting the temperature data of each cup baking machine heating mechanism into the corresponding temperature acquisition control module 500; the fourth ends of the plurality of temperature acquisition control modules 500 are respectively connected with the plurality of cup baking machine heating mechanisms and are used for controlling the heating state of each cup baking machine heating mechanism.

In practical application, the solid-state control voltage stabilizing circuit 100 is arranged to convert alternating current in a mains supply into stable direct current, the stable direct current is input into the solid-state control adjusting circuit 200, the magnitude of the output direct current voltage is adjusted by the solid-state control adjusting circuit 200, the stable direct current voltage with proper magnitude is input into the first input ends of the solid-state voltage adjusting modules 300 respectively, the mains supply is input into the second input ends of the solid-state voltage adjusting modules 300 respectively, the solid-state voltage adjusting modules 300 are internally provided with a control circuit, and the magnitude of the alternating current voltage output from the output ends of the solid-state voltage adjusting modules 300 is controlled by adjusting the magnitude of the direct current voltage input from the first input ends; in order to ensure that the alternating voltage output from the output end of each solid-state voltage regulating module 300 is consistent with the rated voltage of the heating mechanism of the cup roasting machine, a voltage and current testing circuit 400 is required to be arranged to measure the magnitude of the alternating voltage output from the output end of each solid-state voltage regulating module 300, and because the magnitude of the alternating voltage output from the output end of each solid-state voltage regulating module 300 is the same, in order to reduce the cost, the voltage and current testing circuit 400 is only required to be arranged between the output end of one solid-state voltage regulating module 300 and the third end of one temperature acquisition control module 500; the output ends of the other solid-state voltage regulating modules 300 are respectively and directly connected with the third ends of the other temperature acquisition control modules 500; the first ends and the second ends of the plurality of temperature acquisition control modules 500 are connected with the mains supply and used for supplying power to the temperature acquisition control modules 500; the fifth end and the sixth end of the plurality of temperature acquisition control modules 500 are respectively connected with ntc temperature sensors in the plurality of cup baking machine heating mechanisms, and are used for inputting the temperature data of each cup baking machine heating mechanism into the corresponding temperature acquisition control module 500; the fourth ends of the plurality of temperature acquisition control modules 500 are respectively connected with the heating films in the heating mechanisms of the cup baking machines and are used for controlling the heating state of each heating mechanism of the cup baking machines; set for the temperature that roast cup machine heating mechanism needs to heat to in temperature acquisition control module 500, when temperature acquisition control module 500 gathered roast cup machine heating mechanism's temperature is less than the settlement temperature, the fourth end of temperature acquisition control module 500 supplies power for the heating film in roast cup machine heating mechanism, when temperature acquisition control module 500 gathered roast cup machine heating mechanism's temperature reached the settlement temperature, the fourth end of temperature acquisition control module 500 stops immediately and supplies power for the heating film in roast cup machine heating mechanism, prevent that roast cup machine heating mechanism from damaging because of the high temperature.

As shown in fig. 4, in the present embodiment, the solid-state control voltage stabilizing circuit 100 includes a transformer 101, a bridge rectifier 102, a three-terminal regulator 103, a fuse FU, a first electrolytic capacitor C1, and a second electrolytic capacitor C2; two ends of a primary coil of the transformer 101 are connected with a mains supply, two ends of a secondary coil of the transformer 101 are respectively connected with two alternating current input ends of the bridge rectifier 102, one direct current output end of the bridge rectifier 102 is respectively connected with one end of the first electrolytic capacitor C1 and one end of the fuse FU, the other direct current output end of the bridge rectifier 102 is respectively connected with the other end of the first electrolytic capacitor C1, the adjusting end of the three-terminal voltage stabilizer 103 and one end of the second electrolytic capacitor C2, the other end of the fuse FU is connected with the input end of the three-terminal voltage stabilizer 103, and the output end of the three-terminal voltage stabilizer 103 is connected with the other end of the second electrolytic capacitor C2. In practical application, after the alternating current in the mains supply is reduced through the transformer 101, the reduced alternating current is converted into direct current through the bridge rectifier 102, and then the direct current is stabilized through the three-terminal regulator 103; the voltage stabilizing circuit 100 is controlled by the solid state to output a stable direct current.

As shown in fig. 3, in the present embodiment, the solid-state control adjustment circuit 200 includes an adjustable resistor W and a plurality of current-limiting resistors; the number of the current limiting resistors is equal to that of the solid-state voltage regulating modules 300; one end of the adjustable resistor W is respectively connected with one end of the plurality of current-limiting resistors, and the plurality of current-limiting resistors are arranged in parallel; the other ends of the current-limiting resistors are respectively connected with the input ends of the solid-state voltage regulating modules 300. In practical application, the adjustable resistor W is adjusted according to the rated voltage of the heating mechanism of the cup baking machine to adjust the magnitude of the direct current voltage output by the solid state control adjusting circuit 200, so as to adjust the magnitude of the alternating current voltage output by the solid state voltage adjusting module 300; between one end of the adjustable resistor W and the input end of each solid-state voltage regulating module 300, a current limiting resistor is respectively connected, a plurality of current limiting resistors are arranged in parallel, and the solid-state voltage regulating module 300 is prevented from being damaged due to overlarge direct current input into the solid-state voltage regulating module 300 through the current limiting resistors.

As shown in fig. 1 to 6, in this embodiment, the number of the solid-state voltage regulating module 300, the number of the temperature collecting and controlling module 500, the number of the temperature controlling and heating module 6, and the number of the current limiting resistors are all 6. The current limiting resistors are R1, R2, R3, R4, R5 and R6 respectively. In practical application, the measuring device can simultaneously test 6 heating mechanisms of the cup baking machine with the same rated voltage, and the testing efficiency is improved.

As shown in fig. 5, in this embodiment, the voltage and current testing circuit 400 includes the digital display current voltmeter 4 and a current expander 401, one end of the current expander 401 is connected to an output end of one of the solid-state voltage regulating modules 300, and the other end of the current expander 401 is connected to the digital display current voltmeter 4. In practical application, the current expander 401 is arranged, so that the measurement range of the digital display current voltmeter 4 can be expanded, and the test range of the test device is improved.

All the technical features in the embodiment can be freely combined according to actual needs.

The above-mentioned embodiments only express a plurality of embodiments of the present invention, and the description thereof is more specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. The utility model provides a roast cup machine heating mechanism's testing arrangement, includes casing (1), operating panel (3) and control circuit, its characterized in that: the front surface of the shell (1) is provided with the operation panel (3), the left side of the operation panel (3) is provided with a digital display current voltmeter (4), and a voltage adjusting knob (5) is arranged below the digital display current voltmeter (4); a plurality of groups of temperature control heating modules (6) are sequentially arranged on the right side of the digital display current voltmeter (4) on the operation panel (3), and each group of temperature control heating modules (6) comprises a temperature control and temperature measurement digital display meter (61), a protective tube (62) and a switch button (63); the upper surface of the shell (1) is provided with a group of wiring terminals (2) corresponding to each group of temperature control heating modules (6), and the wiring terminals (2) are connected with the heating mechanism of the cup baking machine through wires.

2. The testing device for the heating mechanism of the cup roasting machine according to claim 1, wherein: the control circuit comprises a solid-state control voltage stabilizing circuit (100), a solid-state control adjusting circuit (200), a plurality of solid-state voltage regulating modules (300), a voltage and current testing circuit (400) and a plurality of temperature acquisition control modules (500); the number of the solid-state pressure regulating modules (300) and the number of the temperature acquisition control modules (500) are respectively equal to the number of the temperature control heating modules (6).

3. The testing device for the heating mechanism of the cup roasting machine according to claim 2, wherein: the input end of the solid-state control voltage stabilizing circuit (100) is connected with mains supply; the output end of the solid-state control voltage stabilizing circuit (100) is connected with the input end of the solid-state control adjusting circuit (200); the output end of the solid-state control adjusting circuit (200) is respectively connected with the first input ends of the solid-state voltage regulating modules (300); second input ends of the solid-state voltage regulating modules (300) are respectively connected with mains supply; the output end of one of the solid-state voltage regulating modules (300) is connected with the third end of one of the temperature acquisition control modules (500) through the voltage and current testing circuit; the output ends of the rest of the solid-state voltage regulating modules (300) are respectively and directly connected with the third ends of the rest of the temperature acquisition control modules (500); the first ends and the second ends of the plurality of temperature acquisition control modules (500) are connected with a mains supply; the fifth end and the sixth end of the plurality of temperature acquisition control modules (500) are respectively connected with the plurality of cup baking machine heating mechanisms and used for inputting the temperature data of each cup baking machine heating mechanism into the corresponding temperature acquisition control module (500); and the fourth ends of the plurality of temperature acquisition control modules (500) are respectively connected with the plurality of heating mechanisms of the cup roasting machine and are used for controlling the heating state of each heating mechanism of the cup roasting machine.

4. The testing device for the heating mechanism of the cup roasting machine according to claim 3, wherein: the solid-state control voltage stabilizing circuit (100) comprises a transformer (101), a bridge rectifier (102), a three-terminal regulator (103), a fuse FU, a first electrolytic capacitor C1 and a second electrolytic capacitor C2; two ends of a primary coil of the transformer (101) are connected with a mains supply, two ends of a secondary coil of the transformer (101) are respectively connected with two alternating current input ends of the bridge rectifier (102), one direct current output end of the bridge rectifier (102) is respectively connected with one end of a first electrolytic capacitor C1 and one end of a fuse FU, the other direct current output end of the bridge rectifier (102) is respectively connected with the other end of the first electrolytic capacitor C1, a regulating end of the three-terminal voltage stabilizer (103) and one end of a second electrolytic capacitor C2, the other end of the fuse FU is connected with an input end of the three-terminal voltage stabilizer (103), and an output end of the three-terminal voltage stabilizer (103) is connected with the other end of the second electrolytic capacitor C2.

5. The testing device for the heating mechanism of the cup roasting machine according to claim 4, wherein: the solid-state control adjusting circuit (200) comprises an adjustable resistor W and a plurality of current limiting resistors; the number of the current limiting resistors is equal to that of the solid-state voltage regulating modules (300); one end of the adjustable resistor W is respectively connected with one end of the plurality of current-limiting resistors, and the plurality of current-limiting resistors are arranged in parallel; the other ends of the current-limiting resistors are respectively connected with the input ends of the solid-state voltage regulating modules (300).

6. The testing device for the heating mechanism of the cup roasting machine according to claim 5, wherein: the solid-state pressure regulating module (300), the temperature acquisition control module (500), the temperature control heating module (6) and the current limiting resistors are all 6 in number.

7. The testing device for the heating mechanism of the cup roasting machine according to claim 5 or 6, wherein: the voltage and current testing circuit (400) comprises a digital display current voltmeter (4) and a current expander (401), one end of the current expander (401) is connected with one of the output ends of the solid voltage regulating modules (300), and the other end of the current expander (401) is connected with the digital display current voltmeter (4).