CN210102168U - Adhesive tape sealing detection system for product production line and product production line - Google Patents

Abstract

The utility model provides a sticky tape involution detecting system and product production line for product production line relates to the product and detects technical field, and detecting system includes: the adhesive tape conveying detection device is electrically connected with the box sealing machine and used for detecting whether the one-way wheel of the box sealing adhesive tape conveying device rotates in the adhesive tape sealing operation after the box sealing machine finishes the adhesive tape sealing operation on products, and controlling the box sealing machine to operate or stop based on a detection result. The utility model discloses a detecting system and product production line can detect the product and whether appear the sticky tape and leak the condition of pasting when passing through the case sealer, and when the product appeared the sticky tape through the case sealer and leaked and glue, control case sealer shut down and can send the alarm, can guarantee that the product through the case sealer can not appear the sticky tape and leak the condition of gluing, have the reliability height, and the precision is high, simple structure, and advantages such as economical and practical have effectively reduced quality risk and market complaint.

Description

Adhesive tape sealing detection system for product production line and product production line

Technical Field

The utility model relates to a product detection technology field especially relates to a sticky tape involution detecting system and product production line for product production line.

Background

Currently, tape sealing of products is done automatically by equipment in the product line. For example, in a dairy product production line, the packaging box needs to be sealed by a box sealing machine through adhesive tapes. The installed adhesive tape is firstly directionally transmitted to the rubber wheel through the one-way wheel of the box sealing adhesive tape conveying device, and when the packing box passes through the adhesive tape machine, the rubber wheel firstly contacts the rubber wheel, and the rubber wheel tightly adheres the adhesive tape to the packing box. And the packing box is pulled along with the continuous advance of the packing box, the adhesive tape can be tightly stuck on the box under the extrusion of the rubber wheel, the adhesive tape is cut off when the packing box passes through the cutter, and the tail end of the packing box can be well stuck by the extrusion of the rear rubber wheel. In the production process, the packing box needs to be sealed by the adhesive tape through a box sealing machine, and the sealed packing box can enter the next procedure. The following situations can occur in the sealing process of the box sealing machine: 1. the sealing adhesive tape of the packaging box is not stuck due to the breakage of the adhesive tape; 2. in the production process, the situation that the adhesive tape is used up and a new adhesive tape is not added in time can occur. Both of these conditions of glue can cause the packaging box without the sealing tape to flow into the warehouse and the market, which can cause product quality problems.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model aims to solve a technical problem to provide a sticky tape involution detecting system and product manufacturing line for product manufacturing line.

According to an aspect of the utility model, a sticky tape involution detecting system for product production line is provided, include: the adhesive tape conveying detection device is electrically connected with the case sealer and used for detecting whether a one-way wheel of the case sealer adhesive tape conveying device rotates in the adhesive tape sealing operation or not after the case sealer finishes the adhesive tape sealing operation on products, and controlling the case sealer to operate or stop based on a detection result; the adhesive tape is wound on the one-way wheel and conveyed by the rotation of the one-way wheel.

Optionally, the tape transport detection device includes: the one-way wheel detection unit is used for detecting whether the one-way wheel rotates or not; the first photoelectric detection unit is arranged at an outlet of the box sealing machine and used for detecting the products output from the box sealing machine; and the control circuit unit is electrically connected with the one-way wheel detection unit and the first photoelectric detection unit and is used for controlling the power supply loop of the box sealing machine to be switched on or switched off based on the detection results of the one-way wheel detection unit and the first photoelectric detection unit.

Optionally, the control circuit unit includes: the first control circuit is used for controlling the state of a first relay in a power supply loop of the carton sealing machine; the first control circuit is provided with a second relay, and when the second relay is disconnected, the first relay is disconnected and a power supply loop of the carton sealing machine is disconnected; the second control circuit is electrically connected with the one-way wheel detection unit and the first photoelectric detection unit and is used for controlling the state of the second relay; and under the condition that the one-way wheel detection unit detects that the one-way wheel does not rotate and the first photoelectric detection unit detects the product, the second relay is controlled to be in an off state through the second control circuit.

Optionally, the one-way wheel detecting unit includes: a proximity switch and an induction sheet; the induction sheet is arranged on the one-way wheel, and the proximity switches are arranged on the periphery of the one-way wheel.

Optionally, the number of the one-way wheels is two; the one-way wheel detecting unit includes: four proximity switches and four induction sheets; wherein, two induction sheets are arranged on each one-way wheel at intervals, and two proximity switches are arranged on the periphery of each one-way wheel.

Optionally, the first photoelectric switching unit comprises: a first photoelectric switch and a first light reflecting plate; the first photoelectric switch and the first light reflection plate are respectively positioned on two sides of a transmission device of the box sealing machine.

Optionally, a third relay and a fourth relay connected in series are provided in the second control circuit; wherein the second control circuit controls the second relay to be in an on state in a state in which the third relay and the fourth relay are both in an on state; the first photoelectric detection device is electrically connected with the third relay through a first relay circuit and used for controlling the third relay to be switched on and off; the one-way wheel detection unit is electrically connected with the fourth relay through a second relay circuit and used for controlling the connection and disconnection of the fourth relay.

Optionally, a plurality of fifth relays connected in series are provided in the second relay circuit; wherein, under the condition that all the fifth relays are switched on, the fourth relays are controlled to be switched on by the second relay circuit; the proximity switches are respectively connected with the corresponding fifth relays through third relay circuits and are used for controlling the connection and disconnection of the fifth relays.

Optionally, a second photoelectric detection unit, arranged downstream of the first photoelectric detection unit with respect to the conveying direction of the products, for detecting the products output from the box sealing machine; the second photoelectric detection unit is connected with the fifth relay through a reset control circuit, and the fifth relay is controlled to be in a disconnected state through the reset control circuit when the second photoelectric detection unit detects that the product is in the product state.

Optionally, the second photo-detection unit comprises: a second photoelectric switch and a second light reflecting plate; the second photoelectric switch and the second light reflection plate are respectively positioned on two sides of the transmission device of the box sealing machine.

Optionally, the alarm device is electrically connected to the tape transport detection device and configured to send an alarm signal when the tape transport detection device detects that the one-way wheel does not rotate.

According to the utility model discloses an on the other hand provides a product production line, include: a tape closure detection system for use in a product manufacturing line as described above.

Optionally, the product line comprises: dairy product production line.

The utility model discloses a sticky tape involution detecting system and product production line for product production line, through the sticky tape transport detection device after the case sealer accomplishes the sticky tape involution operation to the product, detect the case sealer sticky tape transport device's one-way wheel whether rotate and control case sealer operation or stop in the sticky tape involution operation; when the product passes through the box sealing machine and the adhesive tape is leaked and stuck, controlling the box sealing machine to stop running and sending an alarm; the adhesive tape leakage and sticking prevention device can guarantee that products passing through the carton sealing machine cannot have the adhesive tape leakage and sticking condition, has the advantages of being high in reliability, high in precision, simple in structure, economical, practical and the like, effectively reduces quality risks and market complaints, and is high in automation degree.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without inventive laboriousness.

Fig. 1 is a block schematic diagram of one embodiment of a tape closure detection system for a product line according to the present invention;

fig. 2 is a schematic view of an alarm device of one embodiment of a tape closure detection system for a product line according to the present invention;

fig. 3 is a block diagram of a tape transport detection device in an embodiment of a tape closure detection system for a product line according to the present invention;

fig. 4 is a block schematic diagram of a control circuit unit in an embodiment of a tape closure detection system for a product line according to the present invention;

fig. 5 is a schematic top view of an installation of one embodiment of a tape closure detection system for a product line according to the present disclosure;

fig. 6 is a schematic view of a one-way wheel detection unit of one embodiment of a tape closure detection system for a product line according to the present disclosure;

fig. 7 is a schematic diagram of a second control circuit of one embodiment of a tape closure detection system for a product line according to the present disclosure;

fig. 8 is a schematic installation front view of one embodiment of a tape closure detection system for a product line according to the present invention;

fig. 9 is a schematic view of the installation of a first and second photodetecting unit according to an embodiment of the present invention of a tape sealing detection system for a product production line;

fig. 10 is a schematic diagram of a second relay circuit of one embodiment of a tape closure detection system for a product line according to the present disclosure;

fig. 11 is a schematic circuit diagram of a reset to a relay according to one embodiment of the tape closure detection system for a product line of the present disclosure;

fig. 12 is a schematic circuit diagram of another embodiment of a tape closure detection system for a product manufacturing line according to the present invention.

Detailed Description

The present invention now will be described more fully hereinafter with reference to the accompanying drawings, in which exemplary embodiments of the invention are shown. The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention. The technical solution of the present invention is described in many ways with reference to the drawings and the embodiments.

Hereinafter, "first", "second", etc. are only descriptive differences and have no other special meanings.

As shown in fig. 1, the utility model provides a sticky tape involution detecting system for product production line, including sticky tape transport detection device 1 and case sealer 2. The adhesive tape conveying detection device 1 is electrically connected with the case sealer 2, detects whether a one-way wheel of the case sealer adhesive tape conveying device rotates in the adhesive tape sealing operation after the case sealer 2 completes the adhesive tape sealing operation on products, and controls the case sealer 2 to operate or stop based on a detection result. The adhesive tape is wound on the one-way wheel and conveyed by the rotation of the one-way wheel. The product can be a packing box and the like.

As shown in fig. 2, the alarm device 3 is electrically connected to the tape transport detection device 1, and sends an alarm signal when the tape transport detection device detects that the one-way wheel does not rotate after the carton sealing machine 2 completes the tape sealing operation on the product. The alarm device 3 may be various, for example, the alarm device 3 may be a speaker, a control panel, an indicator light, etc., and the alarm signal may be an alarm signal such as sound, light, text, etc.

The adhesive tape sealing detection system in the embodiment can detect whether the adhesive tape is leaked or not when a product (such as a packaging box and the like) passes through the box sealing machine, and when the adhesive tape is leaked or stuck when the product passes through the box sealing machine, the box sealing machine is controlled to stop running and an alarm can be sent to remind an operator of timely processing; the adhesive tape leakage prevention device can ensure that the adhesive tape leakage prevention device does not leak the adhesive tape in the products passing through the box sealing machine, and has the advantages of high reliability, simple structure, economy, practicality and the like.

In one embodiment, the tape conveyance detecting device 1 can be implemented in various ways. As shown in fig. 3, the tape conveyance detecting apparatus 1 includes: a one-way wheel detecting unit 11, a first photo detecting unit 12 and a control circuit unit 13. The one-way wheel detecting unit 11 detects whether the one-way wheel rotates. The first photodetecting unit 12 is provided at the outlet of the box sealing machine 2, and detects the product output from the box sealing machine 2. The control circuit unit 13 is electrically connected with the one-way wheel detection unit 11 and the first photoelectric detection unit 12, and is used for controlling the power supply loop of the carton sealing machine 2 to be switched on or off based on the detection results of the one-way wheel detection unit 11 and the first photoelectric detection unit 12.

The control circuit unit 13 may have various implementations. As shown in fig. 4, the control circuit unit 13 includes: a first control circuit 131 and a second control circuit 133. The first control circuit 131 controls the state of the first relay 22 in the power supply circuit 21 of the box sealing machine, and the first control circuit 131 is provided with a second relay 132. In the state where the second relay 132 is turned off, the first relay 22 is turned off and the power supply circuit 21 of the box sealing machine is turned off, and the operation of the packing machine is stopped.

The second control circuit 133 is electrically connected to the one-way wheel detecting unit 11 and the first photodetecting unit 12, and controls the state of the second relay 132. In a state where the one-way wheel detecting unit 11 detects that the one-way wheel does not rotate and the first photodetecting unit 12 detects the product, the second relay 132 is controlled to be in an off state by the second control circuit 133. The first control circuit 131 and the second control circuit 133 may have various specific implementations.

In one embodiment, the one-way wheel detecting unit includes: proximity switches and sensor pads. The induction sheet is arranged on the one-way wheel, and the proximity switches are arranged on the periphery of the one-way wheel. The proximity switch is a position switch that can be operated without mechanical direct contact with a moving part, and when the proximity switch senses a sensing piece, the switching action can be realized without mechanical contact and any pressure application. The approach switch is a switch type sensor, which has the characteristics of a travel switch and a microswitch, and has inductance type, capacitance type, Hall type, alternating current type, direct current type and the like.

As shown in fig. 5, the number of the one-way wheels 02 of the box sealing tape conveying apparatus may be two, etc. The one-way wheel detecting unit includes: the four-direction wheel drive type touch screen comprises four proximity switches and four sensing pieces, wherein two sensing pieces 103 and 105 are arranged on each one-direction wheel 02 at intervals, and two proximity switches 101 and 104 are arranged on the periphery of each one-direction wheel 02.

As shown in fig. 6, two photoelectric switching units, a first photoelectric switching unit 21 and a second photoelectric switching unit 22, may be provided. The first photoelectric switching unit 21 includes: the first photoelectric switch 211 and the first light reflection plate 212 are respectively positioned at two sides of the transmission device of the box sealing machine. The conveying device can be various, such as a conveying chain device, a conveying belt device and the like. The photoelectric switch is a short name of a photoelectric proximity switch, and detects the existence of an object by utilizing the shielding or reflection of the detected object to a light beam and connecting a circuit through a synchronous circuit. The photoelectric switch may be of a diffusion type, a correlation type, a mirror reflection type, a groove type, or the like.

The second photodetecting unit 22 is disposed downstream of the first photodetecting unit 21 with respect to the conveying direction of the product, and detects the product output from the box sealer. The second photodetecting unit 22 includes: the second photoelectric switch 221 and the second light reflecting plate 222 are respectively located on two sides of the transmission device of the box sealing machine.

In one embodiment, as shown in fig. 7 and 8, box sealer 01 includes: the automatic carton sealing machine comprises a conveying chain 09, a one-way wheel 02, a one-way wheel 04, a frame 07, a carton sealing machine core 05, an adhesive tape disc 06, an upper belt and drive 011, an upper belt and drive frame 08, a conveying belt and drive 013 and a lower belt and drive 014. Four proximity switches are arranged, including a proximity switch 101, a proximity switch 102 and the like; four sensing pieces are arranged, including a sensing piece 106 and the like; a first photodetecting unit 21 and a second photodetecting unit 22 are provided.

The mounted adhesive tape 03 is directionally transferred to the rubber wheel through the one-way wheel 02 and the one-way wheel 04, and when the product 010 passes through the adhesive tape machine, the rubber wheel is contacted, and the rubber wheel tightly adheres the adhesive tape 03 to the product 010. Two proximity switches are respectively arranged on the one-way wheel 02 and the one-way wheel 04 which are positioned at two sides, a first photoelectric detection unit 21 and a second photoelectric detection unit 22 are arranged at an outlet of the case sealer, and are associated with a motor control loop of the packaging machine and combined with an alarm device, so that the adhesive tape leakage of a product can be effectively monitored.

In one embodiment, as shown in fig. 9, a third relay 134 and a fourth relay 135 are provided in series in the second control circuit 133. In a state where the third relay 134 and the fourth relay 135 are both on, the second control circuit 133 controls the second relay 132 to be on.

The first photodetecting device 12 is electrically connected to the third relay 134 through the first relay circuit 136, and is used to control the on and off of the third relay 134. The one-way wheel detecting unit 1 is electrically connected to the fourth relay 135 through a second relay circuit 137 for controlling on and off of the fourth relay 135. The first relay circuit 136 and the second relay circuit 137 may have various implementations.

In one embodiment, as shown in fig. 10, a plurality of fifth relays connected in series, for example, four fifth relays 141, 142, 143, and 144 are provided in the second relay circuit 137, and the fourth relay 135 is controlled to be in an on state by the second relay circuit 137 in a state where all of the four fifth relays 141, 142, 143, and 144 are on. The four proximity switches 101, 102, 103, and 104 are connected to the corresponding fifth relays 141, 142, 143, and 144 through four third relay circuits 146, 147, 148, and 149, respectively, for controlling the on and off of the fifth relays 141, 142, 143, and 144.

The fifth relays 141, 142, 143, 144 may be various relays, for example, time relays. The time relay is a relay in which an output circuit generates a jump change (or contact action) after a specified accurate time elapses after an input action signal is added (or removed). When the proximity switch senses the induction sheet, the fifth relay is controlled to be powered on. And timing is started after the fifth relay is powered on, and if the proximity switch does not sense the induction sheet during timing of the fifth relay, the time relay is powered off. The timer time of the fifth relay may be set to 0.2, 0.3 seconds, etc.

As shown in fig. 11, the second photodetecting unit 22 is connected to the fifth relays 141, 142, 143, 144 through the reset control circuit 151, and the fifth relays 141, 142, 143, 144 are controlled to be in the off state by the reset control circuit 151 in a state where the second photodetecting unit 22 detects a product. The third relay circuits 146, 147, 148, 149 and the reset control circuit 151 may be implemented in various ways.

In one embodiment, two induction sheets are respectively installed on the one-way wheels on two sides of the carton sealing machine, two proximity switches are respectively installed at the periphery of the one-way wheels, the two proximity switches correspond to the induction sheets respectively, and when the induction sheets rotate to the position aligned with the proximity switches, the distance between the induction sheets and the proximity switches is 0.5MM, so that the induction sheets are ensured to be in the induction range of the proximity switches.

When the induction sheet is opposite to the proximity switch, the proximity switch is switched on. When the proximity switches on the two sides are switched on alternately, the two one-way wheels are proved to rotate, and the adhesive tape is pasted on a product through the one-way wheels. When one of the two proximity switches on one side is stopped or one of the two proximity switches on one side is normally closed, the one-way wheel on the side stops rotating, the adhesive tape stops adhering the packaging box, and the adhesive tape is leaked on the side of the packaging box.

The first photoelectric switch unit and the second photoelectric switch unit are installed at the outlet of the carton sealing machine, the distance between the first photoelectric switch unit and the second photoelectric switch unit is larger than the width of a product, and the products are guaranteed to be sequentially connected when passing through. The first photoelectric switch unit is an alarm starting photoelectric switch, and the second photoelectric switch unit is a reset photoelectric switch unit. When the product stuck with the adhesive tape passes through the first photoelectric switch unit, the alarm function cannot be started. When the product which is not pasted with the adhesive tape passes through, the alarm function is started, and the box sealing machine stops running. When the product passes through the second photoelectric switch unit, the proximity switch of the one-way wheel is restored to the initial state, and the next detection period is started.

As shown in fig. 12, a first relay KM is provided in a power supply circuit of the box sealing machine, a control circuit is provided to control on/off of the first relay KM, and a second relay K11 is provided in the control circuit. The setting control circuit controls the switching on and off of the K11. The first photoelectric switch is B2, the corresponding third relay is K2, and the first photoelectric switch B2 is electrically connected with the third relay K2 through a corresponding relay circuit. The second photoelectric switch is B3, and the corresponding relay is K3.

The proximity switches arranged on the peripheries of the two side one-way wheels are respectively 4Ba, 4Bb, 5Ba and 5Bb, the corresponding fifth relays are respectively 4Ka, 4Kb, 5Ka and 5Kb, and the proximity switches 4Ba, 4Bb, 5Ba and 5Bb are respectively connected with the corresponding 4Ka, 4Kb, 5Ka and 5Kb through the corresponding relay circuits.

The box sealing machine is started by pressing a starting button SB1 which is a stop switch. The packing box enters a box sealing machine, the one-way wheel rotates, and the proximity switches 4Ba, 4Bb, 5Ba and 5Bb are sequentially connected. The fifth relays K6, K7, K8 and K9 are connected in series to realize self-locking by electrically connecting the corresponding relay circuits with the fourth relay K10. The second photoelectric detection unit is connected with the fifth relays K6, K7, K8 and K9 through corresponding reset control circuits, and the power connection states of the four fifth relays can be controlled by K3.

The normal open points of the four fifth relays K6, K7, K8 and K9 are connected in series and then connected into the fourth relay K10, when the adhesive tape is well adhered, the normal open points of the four fifth relays K6, K7, K8 and K9 are closed, the fourth relay K10 is electrified, the normal close point of the fourth relay K10 is disconnected, the second relay K11 is not electrified, the normal close point is closed, the first relay KM is electrified, and the carton sealing machine continues to operate. The alarm is not powered on and does not give an alarm.

When the packing box has the adhesive leakage tape, the one-way wheel stops rotating, at least one of the proximity switches 4Ba, 4Bb, 5Ba and 5Bb is not switched on, at least one of the four fifth relays K6, K7, K8 and K9 is not powered, the normally open point of the fifth relay cannot be closed, and the fourth relay K10 is not powered. When the packing box passes through first photoelectric switch, third relay K2 gets electricity, and second relay K11 can get electricity, and its normal close point is relayed, and first relay KM does not get electricity, and case sealer stop work, and second relay K11 is normally opened some closure simultaneously, and the alarm gets electricity, begins to report to the police, reminds the operative employee in time to handle.

In one embodiment, the present invention provides a product manufacturing line including a tape closure detection system for a product manufacturing line as in any of the above embodiments. The product line can be various, such as a dairy product line and the like.

In the adhesive tape sealing detection system for a product production line and the product production line in the embodiment, after the adhesive tape sealing operation is completed on a product by the case sealer, the adhesive tape conveying detection device detects whether the one-way wheel of the case sealer adhesive tape conveying device rotates in the adhesive tape sealing operation and controls the case sealer to operate or stop; the condition that the adhesive tape is leaked and stuck when the product passes through the box sealing machine can be detected, and when the adhesive tape is leaked and stuck when the product passes through the box sealing machine, the box sealing machine is controlled to stop running and an alarm can be sent to remind an operator to process in time; the adhesive tape leakage and sticking prevention device has the advantages of being high in reliability, high in precision, simple in structure, economical, practical and the like, effectively reducing quality risks and market complaints, being high in automation degree, capable of reducing human resources and reducing production cost.

The method and system of the present invention may be implemented in a number of ways. For example, the methods and systems of the present invention may be implemented by software, hardware, firmware, or any combination of software, hardware, and firmware. The above-described order for the steps of the method is for illustrative purposes only, and the steps of the method of the present invention are not limited to the order specifically described above unless specifically stated otherwise. Furthermore, in some embodiments, the present invention may also be embodied as programs recorded in a recording medium, the programs including machine readable instructions for implementing a method according to the present invention. Thus, the present invention also covers a recording medium storing a program for executing the method according to the present invention.

The description of the present invention has been presented for purposes of illustration and description, and is not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to practitioners skilled in this art. The embodiment was chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.

Claims (13)

1. A tape closure detection system for a product manufacturing line, comprising:

the adhesive tape conveying detection device is electrically connected with the case sealer and used for detecting whether a one-way wheel of the case sealer adhesive tape conveying device rotates in the adhesive tape sealing operation or not after the case sealer finishes the adhesive tape sealing operation on products, and controlling the case sealer to operate or stop based on a detection result; the adhesive tape is wound on the one-way wheel and conveyed by the rotation of the one-way wheel.

2. The system of claim 1,

the tape transport detection device includes:

the one-way wheel detection unit is used for detecting whether the one-way wheel rotates or not;

the first photoelectric detection unit is arranged at an outlet of the box sealing machine and used for detecting the products output from the box sealing machine;

and the control circuit unit is electrically connected with the one-way wheel detection unit and the first photoelectric detection unit and is used for controlling the power supply loop of the box sealing machine to be switched on or switched off based on the detection results of the one-way wheel detection unit and the first photoelectric detection unit.

3. The system of claim 2,

the control circuit unit includes:

the first control circuit is used for controlling the state of a first relay in a power supply loop of the carton sealing machine; the first control circuit is internally provided with a second relay, and when the second relay is disconnected, the first relay is disconnected and a power supply loop of the carton sealing machine is disconnected;

the second control circuit is electrically connected with the one-way wheel detection unit and the first photoelectric detection unit and is used for controlling the state of the second relay; and under the condition that the one-way wheel detection unit detects that the one-way wheel does not rotate and the first photoelectric detection unit detects the product, the second relay is controlled to be in an off state through the second control circuit.

4. The system of claim 3,

the one-way wheel detecting unit includes: a proximity switch and an induction sheet;

the induction sheet is arranged on the one-way wheel, and the proximity switches are arranged on the periphery of the one-way wheel.

5. The system of claim 4,

the number of the one-way wheels is two; the one-way wheel detecting unit includes: four proximity switches and four induction sheets; wherein, two induction sheets are arranged on each one-way wheel at intervals, and two proximity switches are arranged on the periphery of each one-way wheel.

6. The system of claim 4, comprising:

a first opto-electronic switching unit comprising: a first photoelectric switch and a first light reflecting plate;

the first photoelectric switch and the first light reflection plate are respectively positioned on two sides of a transmission device of the box sealing machine.

7. The system of claim 6,

a third relay and a fourth relay which are connected in series are arranged in the second control circuit; wherein the second control circuit controls the second relay to be in an on state in a state in which the third relay and the fourth relay are both in an on state;

the first photoelectric detection device is electrically connected with the third relay through a first relay circuit and used for controlling the third relay to be switched on and off; the one-way wheel detection unit is electrically connected with the fourth relay through a second relay circuit and used for controlling the connection and disconnection of the fourth relay.

8. The system of claim 7,

a plurality of fifth relays connected in series are provided in the second relay circuit; wherein, under the condition that all the fifth relays are switched on, the fourth relays are controlled to be switched on by the second relay circuit;

the proximity switches are respectively connected with the corresponding fifth relays through third relay circuits and are used for controlling the connection and disconnection of the fifth relays.

9. The system of claim 8, further comprising:

a second photodetecting unit disposed downstream of the first photodetecting unit with respect to a conveying direction of the product, for detecting the product output from the box sealing machine;

the second photoelectric detection unit is connected with the fifth relay through a reset control circuit, and the fifth relay is controlled to be in a disconnected state through the reset control circuit when the second photoelectric detection unit detects that the product is in the product state.

10. The system of claim 9,

the second photodetecting unit includes: a second photoelectric switch and a second light reflecting plate;

the second photoelectric switch and the second light reflection plate are respectively positioned on two sides of the transmission device of the box sealing machine.

11. The system of any one of claims 1 to 10, comprising:

and the alarm device is electrically connected with the rubber belt conveying detection device and is used for sending an alarm signal when the rubber belt conveying detection device detects that the one-way wheel does not rotate.

12. A product line, comprising:

the tape closure detection system of any one of claims 1 to 11 for use in a product line.

13. The product manufacturing line of claim 12,

the product production line comprises: dairy product production line.

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