High-pressure resetting device and cooling system for sealing device of filter stick forming machine

Abstract

The utility model relates to the technical field of filter stick forming machines, and discloses a high-pressure reset device and a cooling system for a sealing device of a filter stick forming machine. The first switching circuit is used for outputting a disconnection signal and a connection signal to the second switching circuit; the second switching circuit is powered off after receiving the disconnection signal and powered on after receiving the connection signal, and controls the external equipment to be in a corresponding operation state; the first switch circuit comprises a high-voltage automatic reset switch and a reset circuit, and the high-voltage automatic reset switch and the reset circuit are arranged in a spaced mode. According to the utility model, the high-pressure automatic reset switch and the reset circuit are arranged at an interval, so that the reset circuit can be conveniently fixed at a position where the operation is convenient, for example, when the high-pressure reset device is applied to a cooling device of a sealing device of a filter stick forming machine, the reset operation can be carried out without moving the cooling device out of the filter stick forming machine; the cooling device can be protected, so that the service life of the cooling device is prolonged, and the safety of the cooling device is improved.

Description

Technical Field

[0001] This utility model relates to the field of filter rod forming machine technology, specifically to a high-pressure reset device and a cooling system for a filter rod forming machine sealer. Background Technology

[0002] Cigarette filters are formed by rolling cellulose acetate tows into a circle using a cigarette rolling pin and then wrapping them inside a forming paper coated with sealing adhesive. A filter rod forming machine is specifically designed for producing cigarette filters, and its sealing device is used to cure the sealing adhesive on the forming paper. Specifically, the sealing device uses a cooling device to cool its contents with cold water, thereby rapidly cooling and curing the sealing adhesive. To save space, the cooling device is fixed in the space below the filter rod output roller inside the filter rod forming machine.

[0003] The cooling system includes a heat absorption circuit, a heat conduction circuit, and a heat dissipation circuit. If the cooling water in the heat dissipation circuit is not turned on in time, the condenser in the heat conduction circuit will not be able to dissipate heat in time, leading to excessively high refrigerant pressure at the compressor output. To protect the cooling system, a high-pressure protection switch is installed on the pipeline between the compressor and the condenser. When the refrigerant pressure is too high, the high-pressure protection switch automatically closes and stops the cooling system. After the cooling water is turned on, manually pressing the reset button on the high-pressure protection switch will resume operation of the cooling system.

[0004] However, since the reset button is located inside the filter rod forming machine, if the cooling water is not turned on in time, the entire cooling device needs to be moved outside the filter rod forming machine for operation. Because the internal piping of the cooling device is complex and varied, moving the cooling device outside the filter rod forming machine will not only damage the cooling device but also create safety risks. Utility Model Content

[0005] In view of this, the present invention provides a high-pressure reset device and a cooling system for the sealer of a filter rod forming machine, so as to solve the problem that the existing integrated design of the reset button and the high-pressure protection switch makes it inconvenient to manually press the reset button.

[0006] In a first aspect, this utility model provides a high-voltage reset device, comprising:

[0007] First switching circuit and second switching circuit;

[0008] Wherein, the first terminal of the first switching circuit is connected to the first power supply voltage, and the second terminal is connected to the second power supply voltage. The first switching circuit is used to output a disconnect signal to the second switching circuit when the pressure value is higher than the preset pressure threshold. The first switching circuit is also used to output a conduction signal to the second switching circuit after receiving a reset signal.

[0009] The first terminal of the second switching circuit is connected to the first power supply voltage, and the second terminal is connected to the second power supply voltage. The second switching circuit is used to cut off power when receiving the disconnect signal and output a first control signal, and to be powered on when receiving the conduction signal and output a second control signal. The first control signal and the second control signal are used to control the external device to be in the corresponding operating state.

[0010] The first switching circuit includes a high-voltage automatic reset switch and a reset circuit, wherein the high-voltage automatic reset switch and the reset circuit are separated by a preset distance.

[0011] Beneficial effects: By setting the high-voltage automatic reset switch and the reset circuit at intervals, it is easier to fix the reset circuit in a more convenient operating position. For example, when the high-voltage reset device is applied to the cooling device of the filter rod forming machine sealer, the reset operation can be performed without moving the cooling device outside the filter rod forming machine, which can protect the cooling device and improve its service life and safety.

[0012] In one optional implementation, the first switching circuit includes:

[0013] The third switching circuit has the first terminal of the high-voltage automatic reset switch connected to the first power supply voltage, the second terminal of the high-voltage automatic reset switch connected to the first terminal of the third switching circuit and the first terminal of the reset circuit, the second terminal of the third switching circuit connected to the second power supply voltage, the second terminal of the reset circuit connected to the first power supply voltage, and the third switching circuit disconnected and output a disconnect signal to the second switching circuit.

[0014] Beneficial effects: By setting up a third switching circuit, it is possible to output disconnect and conduction signals to the second switching circuit, thereby controlling the external device to be in the corresponding operating state.

[0015] In one optional implementation, the third switching circuit includes:

[0016] The coil of the first relay, the first end of the coil of the first relay is connected to the second end of the high-voltage automatic reset switch, and the second end of the coil of the first relay is connected to the second power supply voltage.

[0017] In one optional implementation, the reset circuit includes:

[0018] A reset switch, wherein the first terminal of the reset switch is connected to the first power supply voltage;

[0019] The normally open switch of the first relay has its first terminal connected to the second terminal of the reset switch, and the second terminal of the normally open switch of the first relay is connected to the first terminal of the third switch circuit.

[0020] In one optional implementation, the second switching circuit includes:

[0021] The normally closed switch of the first relay, the first terminal of the normally closed switch of the first relay is connected to the first power supply voltage;

[0022] The coil of the second relay has its first end connected to the second end of the normally closed switch of the first relay, and its second end connected to the second power supply voltage.

[0023] In one optional embodiment, the high-voltage reset device includes:

[0024] An alarm circuit, wherein the second terminal of the alarm circuit is connected to the second power supply voltage;

[0025] After the normally closed switch of the first relay is opened, the second terminal of the normally closed switch of the first relay is connected to the first terminal of the alarm circuit.

[0026] Beneficial effects: By setting up an alarm circuit, operators can be alerted when the pressure of external equipment is too high, so that the fault can be checked and eliminated as soon as possible, and damage to the external equipment can be avoided.

[0027] In one optional implementation, the alarm circuit includes:

[0028] Indicator light.

[0029] Secondly, this utility model also provides a cooling system for a sealer of a filter rod forming machine, comprising:

[0030] case;

[0031] An external device, wherein the external device is a cooling assembly, and the cooling assembly is fixed inside the housing;

[0032] In the aforementioned high-voltage reset device, the reset circuit is fixed to the outer wall of the housing.

[0033] Beneficial effects: Since the cooling system used for the filter rod forming machine sealer includes a high-pressure reset device, it has the same effect as the high-pressure reset device, which will not be elaborated here.

[0034] In one alternative implementation, the cooling assembly includes:

[0035] The compressor has a high-pressure automatic reset switch fixed at its outlet.

[0036] Beneficial effects: By fixing the high-pressure automatic reset switch at the compressor outlet, the pressure value of the refrigerant in the cooling components can be accurately obtained, thus enabling timely handling.

[0037] In one alternative implementation, the cooling assembly includes:

[0038] A control component, on which the second switching circuit is fixed.

[0039] Beneficial effect: By fixing the second switching circuit to the control component, maintenance is facilitated. Attached Figure Description

[0040] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0041] Figure 1 A circuit diagram (I) of a high-voltage reset device according to an embodiment of this utility model;

[0042] Figure 2 for Figure 1 The circuit diagram (II) of a high-voltage reset device is shown.

[0043] Figure 3 for Figure 1 The circuit diagram of a high-voltage reset device is shown in Figure 3.

[0044] Figure 4 for Figure 1 The circuit diagram of a high-voltage reset device is shown in Figure 4.

[0045] Figure 5 for Figure 1 The circuit diagram of a high-voltage reset device is shown in Figure 5.

[0046] Figure 6 for Figure 1 The diagram shown is a structural schematic of the high-voltage reset device under normal conditions.

[0047] Figure 7 for Figure 1 The diagram shows the structure of the high-voltage reset device under high-voltage conditions.

[0048] Explanation of reference numerals in the attached figures:

[0049] 1. High-voltage automatic reset switch; 2. Coil of the first relay; 3. Reset switch; 4. Normally open switch of the first relay; 5. Normally closed switch of the first relay; 6. Coil of the second relay; 7. Indicator light. Detailed Implementation

[0050] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0051] The following is combined with Figures 1 to 2 The following describes embodiments of the present invention.

[0052] According to an embodiment of the present invention, a high-voltage reset device is provided, comprising: a first switching circuit and a second switching circuit.

[0053] like Figure 1 As shown, in one embodiment, the first terminal of the first switching circuit is connected to a first power supply voltage, and the second terminal is connected to a second power supply voltage. The first switching circuit is used to output a disconnect signal to the second switching circuit when the pressure value is higher than a preset pressure threshold. The first switching circuit is also used to output a conduction signal to the second switching circuit after receiving a reset signal. The first terminal of the second switching circuit is connected to the first power supply voltage, and the second terminal is connected to the second power supply voltage. The second switching circuit is used to de-energize when receiving a disconnect signal and output a first control signal, and to energize when receiving a conduction signal and output a second control signal. The first control signal and the second control signal are used to control the external device to be in the corresponding operating state.

[0054] Specifically, the first switching circuit includes a high-voltage automatic reset switch 1 and a reset circuit. The high-voltage automatic reset switch 1 and the reset circuit are set at a preset distance apart, which makes it easier to fix the reset circuit in a more convenient operating position. For example, when the high-voltage reset device is applied to the cooling device of the filter rod forming machine sealer, the reset operation can be performed without moving the cooling device out of the filter rod forming machine, which can protect the cooling device and improve the service life and safety of the cooling device.

[0055] Specifically, the first switching circuit and the second switching circuit mainly involve the following two states:

[0056] (1) When the high voltage alarm occurs, the first switch circuit outputs a disconnect signal to the second switch circuit. The disconnect signal controls the second switch circuit to lose power. The loss of power of the second switch circuit will cause the external equipment to implement the corresponding protection mechanism.

[0057] When a high-voltage alarm occurs, the high-voltage automatic reset switch 1 automatically closes after receiving the alarm command. At this time, the first switch circuit is in the first state, which causes the second switch circuit to lose power.

[0058] (2) When a reset is required, the first switch circuit outputs a conduction signal to the second switch circuit. The conduction signal controls the second switch circuit to be energized, and the energization of the second switch circuit will enable the external device to operate normally.

[0059] When a reset is required, the reset circuit is closed, and the first switch circuit is in the second state, which energizes the second switch circuit.

[0060] In one embodiment, the first supply voltage is 24V and the second supply voltage is 0V. As an alternative implementation, the first supply voltage can also be 36V or 48V; no further restrictions are imposed here.

[0061] like Figure 2 As shown, in one embodiment, the first switching circuit includes a third switching circuit. The first terminal of the high-voltage automatic reset switch 1 is connected to a first power supply voltage. The second terminal of the high-voltage automatic reset switch 1 is connected to the first terminal of the third switching circuit and the first terminal of the reset circuit. The second terminal of the third switching circuit is connected to a second power supply voltage. The second terminal of the reset circuit is connected to the first power supply voltage. The third switching circuit is disconnected and outputs a disconnect signal to the second switching circuit. Specifically, the third switching circuit includes a coil 2 of a first relay. The first terminal of the coil 2 of the first relay is connected to the second terminal of the high-voltage automatic reset switch 1, and the second terminal of the coil 2 of the first relay is connected to the second power supply voltage. By setting the third switching circuit, disconnect and conduction signals can be output to the second switching circuit, thereby controlling the external device to be in the corresponding operating state.

[0062] like Figure 3 As shown, in one embodiment, the reset circuit includes: a reset switch 3, the first end of which is connected to a first power supply voltage; a normally open switch 4 of a first relay, the first end of which is connected to the second end of the reset switch 3, and the second end of which is connected to the first end of a third switch circuit.

[0063] like Figure 4 As shown, in one embodiment, the second switching circuit includes: a normally closed switch 5 of a first relay, the first end of which is connected to a first power supply voltage; and a coil 6 of a second relay, the first end of which is connected to the second end of the normally closed switch 5 of the first relay, and the second end of the coil 6 of the second relay is connected to a second power supply voltage.

[0064] Optionally, the high-voltage automatic reset switch 1 and the reset switch 3 can be in an interlocked state, that is, when the pressure is over-pressurized, the high-voltage automatic reset switch 1 is closed and the reset switch 3 is opened at the same time; when a reset is required, the reset switch 3 is closed and the high-voltage automatic reset switch 1 is opened at the same time.

[0065] like Figure 5 As shown, in one embodiment, the high-pressure reset device includes: an alarm circuit, the second terminal of which is connected to a second power supply voltage; after the normally closed switch 5 of the first relay is opened, the second terminal of the normally closed switch 5 of the first relay is connected to the first terminal of the alarm circuit. Specifically, the alarm circuit includes: an indicator light 7. By setting up the alarm circuit, when the pressure of the external equipment is too high, the operator can be alerted to check and troubleshoot the fault as soon as possible, thus avoiding damage to the external equipment. As an alternative implementation, the alarm circuit may also include other warning structures such as a speaker; no further limitations are imposed here.

[0066] According to an embodiment of the present invention, another aspect provides a cooling system for a filter rod forming machine sealer, comprising: a housing; an external device, the external device being a cooling assembly fixed inside the housing; and the aforementioned high-pressure reset device, wherein a reset circuit is fixed to the outer wall of the housing.

[0067] In one embodiment, the cooling assembly includes a compressor, with a high-pressure automatic reset switch 1 fixed at the compressor outlet. By fixing the high-pressure automatic reset switch 1 at the compressor outlet, the pressure value of the refrigerant in the cooling assembly can be accurately obtained, allowing for timely processing. Alternatively, the high-pressure automatic reset switch 1 can be fixed near the condenser inlet; no further limitations are imposed here.

[0068] In one embodiment, the cooling assembly includes a control component on which a second switching circuit is fixed. Further, a third switching circuit is also fixed to the control component. Fixing the second switching circuit to the control component facilitates maintenance. As an alternative implementation, the second and third switching circuits can also be fixed to other locations on the cooling assembly or its housing; no further limitations are imposed here.

[0069] like Figures 6-7 As shown, in one embodiment, the working principle of the cooling system for the sealer of the filter rod forming machine is as follows:

[0070] (1) When the pressure value of the high-pressure automatic reset switch 1 is higher than the preset pressure threshold, the high-pressure automatic reset switch 1 closes, the coil 2 of the first relay is energized, which drives the normally open switch 4 of the first relay to close. At the same time, the normally closed switch 5 of the first relay is disconnected from the coil 6 of the second relay and connected to the indicator light 7. That is, after the normally closed switch 5 of the first relay is disconnected, it is connected to the indicator light 7. At this time, the coil 6 of the second relay is de-energized, the indicator light 7 is energized and alarms are triggered, and the cooling component stops operating.

[0071] (2) When the pressure value of the high-pressure automatic reset switch 1 is lower than the preset pressure threshold, press the reset switch 3, the reset switch 3 closes, the high-pressure automatic reset switch 1 opens, thereby de-energizing the coil 2 of the first relay and disconnecting the normally open switch 4 of the first relay. At the same time, the normally closed switch 5 of the first relay is connected to the coil 6 of the second relay, the coil 6 of the second relay is energized, and the cooling component resumes operation.

[0072] Although embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. A high-voltage reset device, characterized in that, include: First switching circuit and second switching circuit; Wherein, the first terminal of the first switching circuit is connected to the first power supply voltage, and the second terminal is connected to the second power supply voltage. The first switching circuit is used to output a disconnect signal to the second switching circuit when the pressure value is higher than the preset pressure threshold. The first switching circuit is also used to output a conduction signal to the second switching circuit after receiving a reset signal. The first terminal of the second switching circuit is connected to the first power supply voltage, and the second terminal is connected to the second power supply voltage. The second switching circuit is used to cut off power when receiving the disconnect signal and output a first control signal, and to be powered on when receiving the conduction signal and output a second control signal. The first control signal and the second control signal are used to control the external device to be in the corresponding operating state. The first switching circuit includes a high-voltage automatic reset switch (1) and a reset circuit, wherein the high-voltage automatic reset switch (1) and the reset circuit are separated by a preset distance.

2. The high-voltage reset device according to claim 1, characterized in that, The first switching circuit includes: The third switching circuit has the first terminal of the high-voltage automatic reset switch (1) connected to the first power supply voltage, the second terminal of the high-voltage automatic reset switch (1) connected to the first terminal of the third switching circuit and the first terminal of the reset circuit, the second terminal of the third switching circuit connected to the second power supply voltage, the second terminal of the reset circuit connected to the first power supply voltage, and the third switching circuit disconnected and output a disconnect signal to the second switching circuit.

3. The high-voltage reset device according to claim 2, characterized in that, The third switching circuit includes: The coil (2) of the first relay, the first end of the coil (2) of the first relay is connected to the second end of the high voltage automatic reset switch (1), and the second end of the coil (2) of the first relay is connected to the second power supply voltage.

4. The high-voltage reset device according to claim 3, characterized in that, The reset circuit includes: A reset switch (3), the first end of which is connected to the first power supply voltage; The normally open switch (4) of the first relay is connected to the second end of the reset switch (3), and the second end of the normally open switch (4) of the first relay is connected to the first end of the third switch circuit.

5. The high-voltage reset device according to claim 3, characterized in that, The second switching circuit includes: The normally closed switch (5) of the first relay is connected to the first power supply voltage at its first terminal. The coil (6) of the second relay, the first end of the coil (6) of the second relay is connected to the second end of the normally closed switch (5) of the first relay, and the second end of the coil (6) of the second relay is connected to the second power supply voltage.

6. The high-voltage reset device according to claim 5, characterized in that, The high-voltage reset device includes: An alarm circuit, wherein the second terminal of the alarm circuit is connected to the second power supply voltage; After the normally closed switch (5) of the first relay is opened, the second end of the normally closed switch (5) of the first relay is connected to the first end of the alarm circuit.

7. The high-voltage reset device according to claim 6, characterized in that, The alarm circuit includes: Indicator light (7).

8. A cooling system for a sealer in a filter rod forming machine, characterized in that, include: case; An external device, wherein the external device is a cooling assembly, and the cooling assembly is fixed inside the housing; The high-voltage reset device according to any one of claims 1 to 7, wherein the reset circuit is fixed to the outer side wall of the housing.

9. The cooling system for the sealer of a filter rod forming machine according to claim 8, characterized in that, The cooling assembly includes: The compressor has the high-pressure automatic reset switch (1) fixed at its outlet.

10. The cooling system for the sealer of a filter rod forming machine according to claim 8, characterized in that, The cooling assembly includes: A control component, on which the second switching circuit is fixed.

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