Alarm mechanism for belt clamping of edge sealing belt

Abstract

The utility model discloses an edge sealing belt clamping alarm mechanism, which comprises a one-way belt feeding wheel, a belt clamping alarm device, a belt clamping alarm device, a belt clamping alarm device, a belt clamping alarm device, a belt clamping alarm device, a belt clamping alarm device, a belt clamping alarm device and a belt clamping alarm device, the photoelectric switch is provided with a transmitting end and a receiving end which are oppositely arranged at an interval; the sensing part is installed at the end of the one-way belt conveying wheel and can synchronously rotate along with the one-way belt conveying wheel, a sensing part is arranged on the sensing part, and the sensing part is matched with the optoelectronic switch in the process that the sensing part rotates along with the one-way belt conveying wheel. The problem that the laser of a traditional laser edge bonding machine irradiates an edge bonding belt for a long time to cause fire disasters is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of edge banding machines, in particular to an edge banding band jamming alarm mechanism. Background Art

[0002] For laser edge banding machines, when the edge banding is stuck due to some reason in the belt feeding mechanism, the laser will continue to irradiate one position of the edge banding. Over time, the edge banding will ignite and cause a fire. When there is no edge banding in the belt feeding mechanism, the laser edge banding machine will continue to put the board in and the laser will still emit light. On the one hand, this wastes energy, and on the other hand, the laser will irradiate the pressing wheel and reflect light to the belt or wheel of the conveying mechanism. Therefore, when there is no edge banding in the belt feeding mechanism, a signal needs to be given to the edge banding machine to prompt the operator to add edge banding.

[0003] In order to avoid tape jams in the tape feeding mechanism and fires caused by laser irradiation, some laser edge banding machines on the market have adopted the measure of installing a thermal sensor on the laser head to sense the temperature at the laser irradiation point. When the temperature reaches a certain level, an alarm will be issued and laser irradiation will be stopped. However, the disadvantage of this measure is that the cost is too high. Utility Model Content

[0004] In view of the defects of the above prior art, the utility model provides an edge banding tape jam alarm mechanism to solve the problem of fire caused by long-term irradiation of the edge banding tape by the laser of the traditional laser edge banding machine.

[0005] The utility model is implemented by the following technical solutions:

[0006] An edge band jam alarm mechanism, comprising:

[0007] A one-way tape feed wheel is configured to be closely disposed with the edge band so as to drive the one-way tape feed wheel to rotate when the edge band moves;

[0008] A photoelectric switch having a transmitting end and a receiving end that are relatively spaced apart;

[0009] The induction member is installed at the end of the one-way tape feeding wheel and can rotate synchronously with the one-way tape feeding wheel. The induction member is provided with a sensing part. When the induction member rotates with the one-way tape feeding wheel, the sensing part cooperates with the photoelectric switch.

[0010] Furthermore, the sensing element is in the shape of a circular ring sheet, and a plurality of teeth are evenly arranged along the circumferential direction on the outer edge of the sensing element, the teeth form the sensing part, and the teeth extend into the gap between the transmitting end and the receiving end so that the light of the photoelectric switch is blocked or transparent to generate a signal.

[0011] Furthermore, there is static friction between the one-way tape feed wheel and the edge banding tape, and the static friction drives the one-way tape feed wheel to rotate.

[0012] Furthermore, a one-way needle bearing is installed inside the one-way tape feed wheel for causing the one-way tape feed wheel to rotate in one direction.

[0013] Furthermore, it also includes an adjustment component, which is used to provide a thrust to force the one-way tape feed wheel to be close to the edge banding tape.

[0014] Furthermore, the adjusting assembly includes a rocker arm, a fixed column, an adjusting piece, a fixed block and an elastic piece, one end of the rocker arm is rotatably connected to the end of the fixed column, the other end of the rocker arm is connected to the end of the one-way tape feed wheel, one end of the fixed block is connected to the fixed column, a through hole is provided on the fixed block, a fastening hole is provided on the rocker arm corresponding to the position of the through hole, the elastic piece is located between the fixed block and the rocker arm, the adjusting piece passes through the through hole and the elastic piece in sequence and then cooperates with the fastening hole on the rocker arm, and the elastic piece is used to provide a thrust that causes the rocker arm to swing with the fixed column as the rotation center, so as to cause the one-way tape feed wheel to be close to the edge banding belt by means of the thrust.

[0015] Furthermore, the fastening hole has an internal thread, and the adjusting member has an external thread matching the internal thread.

[0016] Furthermore, it also includes an optical axis, a screw, an upper bearing, a lower bearing and a sleeve. The other end of the swing rod is provided with a screw hole. The upper bearing, the lower bearing and the optical axis are all located inside the one-way tape feed wheel. The screw passes through the lower bearing, the optical axis, the upper bearing and the sleeve in sequence and then matches with the screw hole of the swing rod. One end of the sleeve extends into the one-way tape feed wheel, and the other end of the sleeve extends out of the one-way tape feed wheel. The sensor is sleeved outside the sleeve. Furthermore, it also includes a mounting seat, which is fixedly connected to the swing rod, and the photoelectric switch is mounted on the mounting seat.

[0017] Furthermore, an alarm is also included, and the alarm is electrically connected to the photoelectric switch.

[0018] Compared with the prior art, the beneficial effects of the present invention include at least:

[0019] In the utility model, when the edge band moves, the one-way belt feeding wheel is driven to rotate. At this time, the induction element rotates synchronously with the one-way belt feeding wheel, so that the induction part of the induction element will repeatedly block the signal of the photoelectric switch, so that the signal of the photoelectric switch maintains a certain frequency of connection and disconnection, and the belt feeding mechanism operates normally; when the belt feeding mechanism is stuck due to some reasons, the edge band no longer moves, or the edge band has been used up and the operator has not found it, the induction element will not rotate, the photoelectric switch signal will continue to be connected or disconnected, and the photoelectric switch will emit an alarm signal to timely remind the operator to perform corresponding operations. The alarm mechanism only coordinates the one-way belt feeding wheel, the induction element and the photoelectric switch to automatically transmit the signal of "whether the edge band is stuck when the belt feeding mechanism is operating" to the operator. It has a simple structure and low cost, so that the edge banding machine can be more intelligently controlled. It has the characteristics of simple structure and low cost, and solves the problem of fire caused by long-term laser irradiation of the edge band of the traditional laser edge banding machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of an edge band jamming alarm mechanism provided by an embodiment of the utility model;

[0021] Figure 2 It is an assembly diagram of an edge band jamming alarm mechanism and an adjustment component provided by an embodiment of the utility model;

[0022] Figure 3 for Figure 2 Cross-sectional view of the structure;

[0023] Figure 4 for Figure 2 Exploded view of the structure;

[0024] Figure 5 This is a schematic diagram of an edge banding jam alarm mechanism according to an embodiment of the utility model installed on an edge banding machine;

[0025] Figure 6 A schematic diagram of edge banding transmission according to an embodiment of the utility model;

[0026] Figure 7 This is one of the schematic diagrams of the tape feeding mechanism of an embodiment of the utility model;

[0027] Figure 8 This is a second schematic diagram of the tape feeding mechanism of an embodiment of the utility model;

[0028] In the figure: 1, one-way tape pulley; 101, optical axis; 102, screw; 103, upper bearing; 104, lower bearing; 105, one-way needle bearing; 106, sleeve; 2, induction element; 201, teeth; 3, photoelectric switch; 301, transmitting end; 302, receiving end; 4, adjustment component; 41, swing rod; 410, fastening hole; 42, fixing column; 43, adjustment element; 44, fixing block; 440, through hole; 45. Elastic member; 46. Mounting seat; 5. Edge banding support plate; 6. Tape feeding panel; 7. Cutting cylinder; 8. Cutting cylinder seat; 9. Driven wheel seat; 10. Tape feeding driven wheel; 11. Guide block; 12. Tape feeding driving wheel; 13. Transmission shaft; 14. Cutting knife; 15. Edge banding; 16. Fixed shaft; 17. Adjustable handle; 18. Pressure rod adjustment block; 19. First pressure rod; 20. Support plate; 21. Second pressure rod. DETAILED DESCRIPTION

[0029] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be implemented in a variety of forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided to make the present invention more comprehensive and complete and to fully convey the concepts of example embodiments to those skilled in the art. The same reference numerals in the figures represent the same or similar structures, and thus their repeated description will be omitted.

[0030] The words expressing positions and directions described in the present utility model are all explained by taking the drawings as examples, but they can be changed as needed, and all the changes are included in the protection scope of the present utility model.

[0031] like Figure 1-8 As shown, the utility model provides an edge band jamming alarm mechanism, comprising:

[0032] A one-way tape feed wheel 1, which is configured to be closely disposed with the edge banding 15, so as to drive the one-way tape feed wheel 1 to rotate when the edge banding 15 moves;

[0033] The photoelectric switch 3 has a transmitting end 301 and a receiving end 302 which are arranged relatively spaced apart;

[0034] The sensing member 2 is installed at the end of the one-way tape feed wheel 1 and can rotate synchronously with the one-way tape feed wheel 1. The sensing member 2 is provided with a sensing part. When the sensing member 2 rotates with the one-way tape feed wheel 1, the sensing part cooperates with the photoelectric switch 3.

[0035] In the utility model, when the edge band 15 moves, the one-way tape feed wheel 1 is driven to rotate. At this time, the induction element 2 rotates synchronously with the one-way tape feed wheel 1, so that the induction part of the induction element 2 will repeatedly block the signal of the photoelectric switch 3, so that the signal of the photoelectric switch 3 maintains a certain frequency of connection and disconnection, and the tape feeding mechanism operates normally; when the tape feeding mechanism is stuck due to some reasons, the edge band 15 no longer moves, or the edge band 15 has been used up and the operator has not found it, the induction element 2 will not rotate, the photoelectric switch 3 signal will continue to be connected or disconnected, and the photoelectric switch 3 will emit an alarm signal to remind the operator to perform corresponding operations in time. The alarm mechanism only coordinates the one-way tape feed wheel 1, the induction element 2 and the photoelectric switch 3 to automatically transmit the signal of "whether the edge band 15 is stuck when the tape feeding mechanism is operating" to the operator, so that the edge banding machine can be controlled more intelligently, and the problem of fire caused by long-term laser irradiation of the edge band 15 by the traditional laser edge banding machine is solved.

[0036] Compared with the solution on the market that uses a thermal sensor to prevent the laser from irradiating the edge banding tape 15 for a long time, the tape alarm mechanism of the utility model can achieve this function and is more economical and simple; when the edge banding tape 15 is used up, but the plate is not stopped, the laser of the laser edge banding machine will directly irradiate the parts of the edge banding machine, resulting in laser reflection, which may cause damage to some parts of the laser edge banding machine. The mechanism can also well avoid this situation.

[0037] As a preferred embodiment, the sensing element 2 is in the shape of a circular ring sheet, and a plurality of teeth 201 are evenly arranged along the circumferential direction on the outer edge of the sensing element 2, and the teeth 201 form the sensing part, and the teeth 201 extend into the gap between the transmitting end 301 and the receiving end 302 so that the light of the photoelectric switch 3 is blocked or transparent to generate a signal.

[0038] When the one-way tape feeding wheel 1 rotates, the teeth 201 of the induction element 2 pass through the gap between the transmitting end 301 and the receiving end 302 of the photoelectric switch 3. Since the light of the photoelectric switch 3 is blocked / permeable by the teeth 201, the photoelectric switch 3 starts to operate and generates a signal. The running state of the edge banding 15 can be identified by the signal.

[0039] As a preferred embodiment, there is static friction between the one-way tape feed wheel 1 and the edge band 15, and the static friction drives the one-way tape feed wheel 1 to rotate. In this embodiment, since the one-way tape feed wheel 1 is in close contact with the edge band 15, when the edge band 15 moves, due to the static friction, the one-way tape feed wheel 1 can be driven to rotate, and then the induction member 2 is synchronously driven to rotate.

[0040] As a preferred embodiment, a one-way needle roller bearing 105 is installed inside the one-way tape feeding wheel 1 to promote the one-way rotation of the one-way tape feeding wheel 1. Through the arrangement of the one-way needle roller bearing 105, the one-way tape feeding wheel 1 can only rotate in one direction. When the tape feeding mechanism is not working, the edge banding 15 can be prevented from moving in the opposite direction, thereby preventing the edge banding 15 from falling due to operator error.

[0041] As a preferred embodiment, an adjustment component 4 is further included, and the adjustment component 4 is used to provide a thrust to force the one-way tape feed wheel 1 to be close to the edge band 15. The one-way tape feed wheel 1 can adjust the pressing force of the edge band 15 through the adjustment component 4, so as to ensure that when the thickness of the edge band 15 changes, the one-way tape feed wheel 1 is always close to the edge band 15.

[0042] As a preferred embodiment, the adjusting assembly 4 includes a swing rod 41, a fixed column 42, an adjusting member 43, a fixed block 44 and an elastic member 45, one end of the swing rod 41 is rotatably connected to the end of the fixed column 42, the other end of the swing rod 41 is connected to the end of the one-way tape feed wheel 1, one end of the fixed block 44 is connected to the fixed column 42, a through hole 440 is provided on the fixed block 44, the swing rod 41 is provided with a fastening hole 410 at a position corresponding to the through hole 440, the elastic member 45 is located between the fixed block 44 and the swing rod 41, the adjusting member 43 passes through the through hole 440 and the elastic member 45 in sequence and then cooperates with the fastening hole 410 on the swing rod 41, the elastic member 45 is used to provide a thrust for causing the swing rod 41 to swing with the fixed column 42 as the rotation center, so as to cause the one-way tape feed wheel 1 to be close to the edge banding 15 by the thrust.

[0043] When the thickness of the edge band 15 changes, the gap between the one-way tape feeding wheel 1 and the edge band supporting plate 5 can be adjusted by the adjusting component 4, so that the one-way tape feeding wheel 1 can be close to the edge band 15; the specific operation is as follows: an external force is applied to the adjusting member 43, and the adjusting member 43 squeezes the elastic member 45 under the action of the external force, and the elastic member 45 is compressed. Under the action of the elastic member 45, the swing rod 41 slightly rotates a certain angle with the fixed column 42 as the rotation center, and then drives the one-way tape feeding wheel 1 to swing. At this time, the gap between the one-way tape feeding wheel 1 and the edge band supporting plate 5 will also change accordingly. The gap between the one-way tape feeding wheel 1 and the edge band supporting plate 5 is adjusted by the adjusting member 43, and the compression amount of the elastic member 45 also changes. Therefore, the pressure of the one-way tape feeding wheel 1 on the edge band 15 will be different, which is convenient to adjust to a just appropriate pressure to make the one-way tape feeding wheel 1 close to the edge band 15, and adapt to edge bands 15 of different thicknesses, and has strong adaptability.

[0044] As a preferred embodiment, the fastening hole 410 has an internal thread, and the adjusting member 43 has an external thread matched with the internal thread. Since the adjusting member 43 and the swing rod 41 are threadedly matched, the elastic member 45 can be compressed by rotating the adjusting member 43, which has the advantages of simple structure and simple operation.

[0045] As a preferred embodiment, it further includes an optical axis 101, a screw 102, an upper bearing 103, a lower bearing 104, and a sleeve 106. The other end of the swing rod 41 is provided with a screw hole. The upper bearing 103, the lower bearing 104 and the optical axis 101 are all located inside the one-way tape feeding wheel 1. The screw 102 passes through the lower bearing 104, the optical axis 101, the upper bearing 103, and the sleeve 106 in sequence and then matches with the screw hole of the swing rod 41. One end of the sleeve 106 extends into the one-way tape feeding wheel 1, and the other end of the sleeve 106 extends out of the one-way tape feeding wheel 1. The sensor 2 is sleeved outside the sleeve 106. Through the arrangement of the screw 102, the upper bearing 103, the lower bearing 104, the optical axis 101 and the sleeve 106, the one-way tape feeding wheel 1 can rotate with the screw 102 as the axis. The sensor 2 is sleeved outside the sleeve 106 so that it can rotate synchronously with the one-way tape feeding wheel 1.

[0046] As a preferred embodiment, a mounting seat 46 is further included. The mounting seat 46 is fixedly connected to the swing rod 41 , and the photoelectric switch 3 is mounted on the mounting seat 46 .

[0047] As a preferred embodiment, an alarm is further included, and the alarm is electrically connected to the photoelectric switch 3. By connecting the alarm to the photoelectric switch, when the signal of the photoelectric switch 3 is continuously in a connected or disconnected state, the photoelectric switch transmits an alarm signal to the alarm, and the alarm receives the alarm signal and gives an alarm, thereby reminding the operator.

[0048] In order to understand the working principle of the alarm mechanism on the edge banding machine, this embodiment provides the specific structure of the belt feeding mechanism of the edge banding machine. Figure 4-7The tape feeding mechanism includes an edge banding plate 5, a tape feeding panel 6, a cutting cylinder 7, a cutting cylinder seat 8, a driven wheel seat 9, a tape feeding driven wheel 10, a guide block 11, a tape feeding driving wheel 12, a transmission shaft 13, a cutting knife 14, an edge banding 15, a fixed shaft 16, an adjustable handle 17, a pressure rod adjustment block 18, a first pressure rod 19, a support plate 20 and a second pressure rod 21. The edge banding plate 5, the cutting cylinder seat 8 and the driven wheel seat 9 are all fixedly connected to the tape feeding panel 6, and the cutting cylinder 7 is fixedly connected to the cutting cylinder seat 8. The output shaft of the cutting cylinder 7 is fixedly connected to the cutting knife 14. The advance and retreat of the output shaft of the cutting cylinder 7 can drive the cutting knife 14 to move forward and backward along the wall of the cutting cylinder seat 8. The driven wheel seat 9 is connected to the tape feeding driven wheel 10. The tape feeding driven wheel 10 can rotate freely around the central axis. The tape feeding driving wheel 12 is installed on the side of the tape feeding panel 6 and is placed opposite to the driven wheel. When the edge banding 15 passes by, the driving wheel presses the edge banding 15 under the action of the cylinder, thereby driving the edge banding 15 to be transported forward, and the tape feeding driving wheel 12 can also rotate freely around the central axis. The transmission shaft 13 is indirectly connected to the tape feeding driving wheel 12. The rotation of the transmission shaft 13 can drive the tape feeding driving wheel 12 to rotate, and one end of the transmission shaft 13 is connected to the motor (not shown in the figure). When the motor rotates, it can drive the transmission shaft 13 and the tape feeding driving wheel 12 to rotate. The first pressure rod 19 is fixedly connected to the pressure rod adjustment block 18. After the fixed shaft 16 passes through the pressure rod adjustment block 18, it is locked on the pressure rod adjustment block 18 by the adjustable handle 17. The fixed shaft 16 is fixedly connected to the tape feeding panel 6. The support plate 20 is fixed on the cutting cylinder seat 8. The second pressure rod 21 passes through the support plate 20 and is locked on the support plate 20 by the adjustable handle 17. The first pressure rod 19 and the second pressure rod 21 are used to limit the edge banding 15 so that the edge banding 15 will not shake up and down or move when it moves on the tape feeding panel 6. By loosening the adjustable handle 17, the distance between the first pressure rod 19, the second pressure rod 21 and the tape feeding panel 6 can be adjusted to adapt to edge bands 15 of different widths.

[0049] The working principle of the belt feeding mechanism is as follows Figure 5 As shown in the figure, the edge banding 15 passes through the gap between the one-way tape feeding wheel 1 and the edge banding plate 5, the gap between the tape feeding driving wheel 12 and the tape feeding driven wheel 10, and the gap between the cutting cylinder seat 8 and the guide block 11. When the motor rotates, the tape feeding driving wheel 12 drives the edge banding 15 to move as shown in the figure. Figure 5The edge band 15 moves in the direction shown. When the conveyed edge band 15 reaches the specified length, the output shaft of the cutting cylinder 7 drives the cutting knife 14 to advance and cut the edge band 15. When the tape jam alarm mechanism is installed on the tape feeding panel 6, when the tape feeding mechanism is working, the tape feeding driving wheel 12 drives the edge band 15 to move. Due to the static friction between the edge band 15 and the one-way tape feeding wheel 1, the one-way tape feeding wheel 1 rotates, and the sensor 2 rotates with the one-way tape feeding wheel 1. The sensor 2 repeatedly blocks the signal of the photoelectric switch 3, so that the signal of the photoelectric switch 3 maintains a certain frequency of connection and disconnection. At this time, the tape feeding mechanism operates normally. When the tape feeding mechanism is jammed for some reason, the edge band 15 no longer moves, or the edge band 15 has been used up and the operator has not discovered it, the sensor 2 will not rotate, the signal of the photoelectric switch 3 will continue to be connected or disconnected, and the photoelectric switch 3 will emit an alarm signal.

[0050] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations on the present invention. A person skilled in the art may change, modify, substitute and modify the above embodiments within the scope of the invention without departing from the principles and purpose of the present invention. All such changes should fall within the scope of protection of the claims of the present invention.

Claims

1. An edge band jam alarm mechanism, characterized in that: include: A one-way tape feed wheel (1) is configured to be closely disposed with the edge band (15) so as to drive the one-way tape feed wheel (1) to rotate when the edge band (15) moves; A photoelectric switch (3) having a transmitting end (301) and a receiving end (302) arranged relatively spaced apart; The sensing member (2) is mounted on the end of the one-way tape feed wheel (1) and can rotate synchronously with the one-way tape feed wheel (1). The sensing member (2) is provided with a sensing part. When the sensing member (2) rotates following the one-way tape feed wheel (1), the sensing part cooperates with the photoelectric switch (3).

2. The edge band jam alarm mechanism according to claim 1, characterized in that: The sensing element (2) is in the shape of a circular ring sheet, and a plurality of teeth (201) are evenly arranged on the outer edge of the sensing element (2) along the circumferential direction, the teeth (201) forming the sensing portion, and the teeth (201) extend into the gap between the transmitting end (301) and the receiving end (302) so that the light of the photoelectric switch (3) is blocked or passed through to generate a signal.

3. The edge band jam alarm mechanism according to claim 1, characterized in that: There is static friction between the one-way tape feed wheel (1) and the edge banding belt (15), and the static friction drives the one-way tape feed wheel (1) to rotate.

4. The edge band jam alarm mechanism according to claim 1, characterized in that: A one-way needle roller bearing (105) is installed inside the one-way tape feeding wheel (1) for causing the one-way tape feeding wheel (1) to rotate in one direction.

5. The edge band jam alarm mechanism according to claim 1, characterized in that: It also comprises an adjusting component (4), wherein the adjusting component (4) is used to provide a thrust for causing the one-way tape feed wheel (1) to be closely attached to the edge banding tape (15).

6. The edge band jam alarm mechanism according to claim 5, characterized in that: The adjusting assembly (4) comprises a swing rod (41), a fixed column (42), an adjusting member (43), a fixed block (44) and an elastic member (45); one end of the swing rod (41) is rotatably connected to the end of the fixed column (42); the other end of the swing rod (41) is connected to the end of the one-way tape feed wheel (1); one end of the fixed block (44) is connected to the fixed column (42); a through hole (440) is provided on the fixed block (44); the position of the swing rod (41) corresponding to the through hole (440) is A fastening hole (410) is provided, the elastic member (45) is located between the fixed block (44) and the swing rod (41), the adjusting member (43) passes through the through hole (440) and the elastic member (45) in sequence and then matches with the fastening hole (410) on the swing rod (41), the elastic member (45) is used to provide a thrust for causing the swing rod (41) to swing with the fixed column (42) as the rotation center, so as to cause the one-way tape feeding wheel (1) to be in close contact with the edge banding tape (15) by means of the thrust.

7. The edge band jam alarm mechanism according to claim 6, characterized in that: The fastening hole (410) has an internal thread, and the adjusting member (43) has an external thread matching the internal thread.

8. The edge band jam alarm mechanism according to claim 6, characterized in that: It also includes an optical axis (101), a screw (102), an upper bearing (103), a lower bearing (104) and a sleeve (106); the other end of the swing rod (41) is provided with a screw hole; the upper bearing (103), the lower bearing (104) and the optical axis (101) are all located inside the one-way tape feed wheel (1); the screw (102) passes through the lower bearing (104), the optical axis (101), the upper bearing (103) and the sleeve (106) in sequence and then cooperates with the screw hole of the swing rod (41); one end of the sleeve (106) extends into the one-way tape feed wheel (1), and the other end of the sleeve (106) extends out of the one-way tape feed wheel (1); the induction component (2) is sleeved outside the sleeve (106).

9. The edge band jam alarm mechanism according to claim 6, characterized in that: It also includes a mounting seat (46), the mounting seat (46) is fixedly connected to the swing rod (41), and the photoelectric switch (3) is mounted on the mounting seat (46).

10. The edge band jam alarm mechanism according to claim 1, characterized in that: It also comprises an alarm, which is electrically connected to the photoelectric switch (3).

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