TWI757725B - Belt Conveyor for Automatically Adjusting Belt Tension - Google Patents

Abstract

A material belt conveying device for automatically adjusting the tension of material belts, comprising: a material belt receiving unit has a first driving member and a first driving wheel, the first driving wheel train is used to receive the material belt; the material belt output unit has a second driving member and a second driving wheel, the second driving wheel train is used to output the material tape; the first sliding rail unit has a first sliding rail, a first sliding block and a first elastic member, and the first auxiliary unit is arranged on the first sliding block; The first detection unit has a first detection element and a second detection element; the control chip detects the position of the first auxiliary unit according to the first detection element and the second detection element to control the first and second driving rotation of the piece.

Description

Belt conveying device that automatically adjusts the tension of the belt

The present invention relates to the technology of material belt conveying, in particular to a material belt conveying device for automatically adjusting the tension of the material belt.

Please refer to the Republic of China Patent No. M318613, which is a conveying and positioning device for a material belt. The driving wheel group (2) clamps and pulls the material belt (1) nested in the driven pin wheel (3), and is driven by the driving wheel set (2). The lower roller (22) outputs the material belt (1), and then the upper roller (21) presses the material belt (1) to form a clamping material belt (1) with the lower roller (22) to ensure that the material belt (1) is flat Effect.

However, the above-mentioned device cannot adjust the speed of the lower roller to output the material belt in real time. When an error occurs during the conveying of the material belt, the rotation speed of the lower roller cannot be adjusted immediately, and the unevenness of the material belt may still occur.

The main purpose of the present invention is to provide a material belt conveying device that automatically adjusts the tension of the material belt, which can monitor and adjust the conveying speed of the material belt in real time, so as to keep the material belt in conveyance flat.

In order to achieve the above-mentioned purpose, the present invention provides a material belt conveying device for automatically adjusting the tension force of the material belt, which includes a base; and a first driving wheel, the first driving wheel is connected to the first driving member and is subject to the Drive, the first driving wheel train is used for receiving a material belt, and the position where the first driving wheel receives the material belt is defined as a receiving part; a material belt output unit is arranged on the base, and the material belt is output The unit has a second driving member and a second driving wheel, the second driving wheel is connected to and driven by the second driving member, the second driving wheel train is used for outputting the material belt, and defines the second driving wheel The position of outputting the material belt is an output part; a first auxiliary unit is arranged on the base, the first auxiliary unit has a first contact part, and the position of the first contact part is higher than the second driving wheel the output part, the first auxiliary unit is pressed against the material belt with the first contact part; a first slide rail unit is set on the base, the first slide rail unit has a first slide rail, a first slide rail unit A slider and a first elastic member, the first slider is slidably arranged on the first slider, the first auxiliary unit is arranged on the first slider, the first elastic member is pressed against the For the first slider, when the first auxiliary unit is subjected to different pressures from the material belt, the first auxiliary unit moves with the first slider to at least a first position, a second position or a third position ; A first detection unit, set on the base, the first detection unit has a first detection piece and a second detection piece, the first detection piece and the second detection piece are used to detect the position of the first auxiliary unit; and a control chip, electrically connected to the first detection element, the second detection element, the first driving element and the second driving element, so as to receive the first detection element The detection signal of the detection element and the second detection element further controls the rotation of the first and second driving elements; wherein, when the first auxiliary unit is located at the first position, it is detected by the first detection element detected and not detected by the second detecting element, the control chip controls the rotational speed of the first driving element to be greater than the rotational speed of the second driving element; when the first auxiliary unit is located at the second position, it is simultaneously detected by the control chip. The first detecting element and the second detecting element detect, or are not detected by the first detecting element and the second detecting element at the same time, and the control chip controls the first driving element and the second detecting element The rotational speed of the two driving elements is the same; when the first auxiliary unit is located at the third position, it is detected by the second detection element and not detected by the first detection element, and the control chip controls the first auxiliary unit The rotational speed of the driving member is smaller than the rotational speed of the second driving member.

Therefore, the present invention provides a material belt conveying device for automatically adjusting the tension of the material belt, which can monitor and adjust the conveying speed of the material belt in real time, so as to keep the material belt in conveyance flat.

10: Material belt conveyor

11: Pedestal

21: Tape receiving unit

23: The first drive

25: First drive wheel

251: Receiving Department

31: Tape output unit

33: Second drive

35: Second drive wheel

351: Output part

41: First Auxiliary Unit

43: The first contact part

51: Second Auxiliary Unit

53: Second contact part

61: Third Auxiliary Unit

63: The third contact part

71: The first slide rail unit

73: The first slide

75: First Slider

751: First stop

753: Second stop

77: First elastic piece

81: The first detection unit

83: The first detection piece

85: Second detection piece

87: The third detection piece

91: Control chip

95: drive pin wheel

96: The third drive

97: Needle wheel

971: Guide Needle

100: material belt

101: Positioning hole

D1: The first predetermined distance

D2: The second predetermined distance

D3: The third predetermined distance

D4: Fourth predetermined distance

P1: First pressure

P2: Second pressure

P3: Third pressure

P4: Fourth pressure

S1: First position

S2: Second position

S3: Third position

S4: Fourth position

10': material belt conveyor

11': Pedestal

23': The first drive

25': 1st drive wheel

33': Second drive

35': 2nd drive wheel

51': Second Auxiliary Unit

53': second contact part

61’: Third Auxiliary Unit

62': Fourth Auxiliary Unit

64': Fourth Contact

72': Second slide rail unit

74': Second rail

76': Second Slider

761’: Third stop

763’: Fourth stop

78': Second elastic piece

82': The second detection unit

84': Fourth detection piece

86’: Fifth detection piece

88': sixth detection piece

91': control chip

96': 3rd drive

97': pin wheel

100': tape

D5': The fifth predetermined distance

D6': sixth predetermined distance

D7': seventh predetermined distance

D8': Eighth predetermined distance

P5': Fifth pressure

P6': sixth pressure

P7': seventh pressure

P8': Eighth pressure

S5': Fifth position

S6': sixth position

S7': seventh position

S8': Eighth position

FIG. 1 is a perspective view of the first preferred embodiment of the present invention.

FIG. 2 is another perspective view of the first preferred embodiment of the present invention, showing the state behind the base.

FIG. 3 is a partial enlarged view of the first preferred embodiment of the present invention.

FIG. 4 is another partial enlarged view of the first preferred embodiment of the present invention.

5 is a schematic diagram of the first action of the first preferred embodiment of the present invention, showing that the first auxiliary unit is located at the first position.

6 is a schematic diagram of the second action of the first preferred embodiment of the present invention, showing that the first auxiliary unit is located at the second position.

FIG. 7 is a schematic diagram of the third action of the first preferred embodiment of the present invention, showing that the first auxiliary unit is located at the third position.

8 is a schematic diagram of the fourth action of the first preferred embodiment of the present invention, showing that the first auxiliary unit is located at the fourth position.

FIG. 9 is a block diagram of the first preferred embodiment of the present invention.

FIG. 10 is a perspective view of the second preferred embodiment of the present invention.

FIG. 11 is a partial enlarged view of the second preferred embodiment of the present invention.

12 is a schematic diagram of the first action of the second preferred embodiment of the present invention, showing that the third auxiliary unit is located at the fifth position.

13 is a schematic diagram of the second action of the second preferred embodiment of the present invention, showing that the third auxiliary unit is located at the sixth position.

14 is a schematic diagram of the third action of the second preferred embodiment of the present invention, showing that the third auxiliary unit is located at the seventh position.

15 is a schematic diagram of the fourth action of the second preferred embodiment of the present invention, showing that the third auxiliary unit is located at the eighth position.

FIG. 16 is a block diagram of the second preferred embodiment of the present invention.

In order to describe the technical features of the present invention in detail, the following preferred embodiments are given and described in conjunction with the drawings as follows, wherein: the first preferred embodiment of the present invention is shown in FIGS. The preferred embodiment provides a material belt conveying device 10 for automatically adjusting the tension of the material belt, which is mainly composed of a base 11, a material belt receiving unit 21, a material belt output unit 31, a first auxiliary unit 41, and a second material belt. The auxiliary unit 51 , a third auxiliary unit 61 , a first slide rail unit 71 , a first detection unit 81 and a control chip 91 are composed. As shown in FIG. 2 , the tape receiving unit 21 is located in the The base 11 and the tape receiving unit 21 have a first driving member 23 and a first driving wheel 25 . The first driving wheel 25 is connected to and driven by the first driving member 23 . The first driving wheel 25 It is used for receiving a material belt 100 , and defines the position where the first driving wheel 25 receives the material belt 100 as a receiving portion 251 .

The material tape output unit 31 is disposed on the base 11 , the material tape output unit 31 has a second driving member 33 and a second driving wheel 35 , the second driving wheel 35 is connected to the second driving member 33 and is driven by the second driving member 33 . drive The second driving wheel 35 is used for outputting the material tape 100 , and the position where the second driving wheel 35 outputs the material tape 100 is defined as an output portion 351 .

The first auxiliary unit 41 is disposed on the base 11 , the first auxiliary unit 41 has a first contact portion 43 , and the position of the first contact portion 43 is higher than the output portion 351 of the second driving wheel 35 . The first auxiliary unit 41 abuts the material tape 100 with the first contact portion 43 .

The second auxiliary unit 51 is disposed on the base 11 , the second auxiliary unit 51 has a second contact portion 53 , and the position of the second contact portion 53 is lower than the first contact portion 43 . The second auxiliary unit 51 is pressed against the material strip 100 by the second contact portion 53 . In actual implementation, if there is no requirement to press the material tape 100, the second auxiliary unit 51 can be omitted, so the second auxiliary unit 51 is not an essential element to achieve the present invention.

The third auxiliary unit 61 is disposed on the base 11 , the third auxiliary unit 61 has a third contact portion 63 , and the position of the third contact portion 63 is higher than the receiving portion 251 of the second driving wheel 35 . The third auxiliary unit 61 abuts the material tape 100 with the third contact portion 63 . In actual implementation, if there is no requirement to support the material tape 100, the third auxiliary unit 63 can be omitted, so the third auxiliary unit 63 is not an essential element to achieve the present invention.

In the first preferred embodiment, the first auxiliary unit 41 , the second auxiliary unit 51 and the third auxiliary unit 61 are implemented with rollers. An arc-shaped plate is used as the implementation, or other structures (such as cylindrical rods with smooth surface) that are not easy to generate excessive resistance to the material strip 100 are implemented as the implementation. Therefore, the first auxiliary unit 41, the second auxiliary unit 51 and the The implementation of the third auxiliary unit 61 is not limited to the present preferred embodiment.

In the first preferred embodiment, the first auxiliary unit 41 is located between the material tape receiving unit 21 and the material tape output unit 31, and the second auxiliary unit 51 is located between the first auxiliary unit 41 and the material tape output unit 31. Between the tape receiving units 21, the third auxiliary unit 61 is located between the second auxiliary unit 51 and the material tape receiving unit 21, but not limited thereto.

As shown in FIGS. 2-3 , the first sliding rail unit 71 is disposed on the base 11 , and the first sliding rail unit 71 has a first sliding rail 73 , a first sliding block 75 and a first elastic member 77 . , the first sliding block 75 is slidably disposed on the first sliding rail 73, and the first sliding block 75 is provided with the first auxiliary unit 41, and the first elastic member 77 is pressed against the first sliding Block 75 , as shown in FIGS. 5-7 , when the first auxiliary unit 41 is subjected to different pressures from the material belt 100 , the first auxiliary unit 41 moves with the first slider 75 to at least a first position S1 , A second position S2 or a third position S3.

As shown in FIGS. 3 , 5 and 7 , the first detection unit 81 is disposed on the base 11 , and the first detection unit 81 has a first detection element 83 and a second detection element 85 . A detecting element 83 and the second detecting element 85 are used for detecting the position of the first auxiliary unit 41 .

As shown in FIG. 9 , the control chip 91 is electrically connected to the first detection element 83 , the second detection element 85 , the first driving element 23 and the second driving element 33 to receive the first detection element The detection signals of the component 83 and the second detection component 85 are used to control the rotation of the first and second driving components 23 and 33 .

Among them, as shown in FIGS. 2, 6 and 9, when the first auxiliary unit 41 is located at the second position S2, it is simultaneously detected by the first detection element 83 and the second detection element 85, and is detected by the first detection element 83 and the second detection element 85 at the same time. The control chip 91 determines that the state is normal, and the control chip 91 controls the speed difference (ΔS) between the rotational speed of the first driving element 23 driving the first driving wheel 25 and the rotational speed of the second driving element 33 driving the second driving wheel 35 (the aforementioned speed difference refers to the rotation speed of the first driving wheel 25 minus the rotation speed of the second driving wheel 35 ); as shown in FIGS. 2 , 5 and 9 , when the first auxiliary unit 41 is located at the first position S1, which is detected by the first detecting element 83 and not detected by the second detecting element 85, is judged to be abnormal by the control chip 91, which controls the first driving wheel 25 The speed difference between the rotational speed and the rotational speed of the second driving wheel 35 increases (increases as a positive value); as shown in Figures 2, 7 and 9 As shown, when the first auxiliary unit 41 is located at the third position S3, it is detected by the second detecting element 85, and is not detected by the first detecting element 83, and is determined by the control chip 91 as a When the state is abnormal, the control chip 91 controls the speed difference between the rotational speed of the first driving wheel 25 and the rotational speed of the second driving wheel 35 to decrease (a positive decrease, not a negative decrease).

In actual implementation, to increase the speed difference between the rotational speed of the first driving wheel 25 and the rotational speed of the second driving wheel 35 , the control chip 91 can drive the first driving wheel 25 by controlling the first driving member 23 . The rotation speed is increased and the rotation speed of the second driving wheel 35 is controlled to remain unchanged, or it can be achieved by controlling the rotation speed of the first driving wheel 25 to remain unchanged and controlling the second driving member 33 to drive the second driving wheel 35. The rotation speed is reduced, or it can be achieved by controlling the first driving member 23 to drive the rotation speed of the first driving wheel 25 to increase, and controlling the second driving member 33 to drive the rotation speed of the second driving wheel 35 to decrease.

In actual implementation, to reduce the speed difference between the first driving wheel 25 and the second driving wheel 35 , the control chip 91 can control the first driving member 23 to drive the rotation speed of the first driving wheel 25 to decrease , and control the rotation speed of the second driving wheel 35 to be constant, or it can be achieved by controlling the first driving member 23 to drive the rotation speed of the first driving wheel 25 to be constant, and controlling the second driving member 33 to drive the first driving wheel 25. This is achieved by increasing the rotational speed of the two driving wheels 35 , or by controlling the first driving member 23 to drive the rotational speed of the first driving wheel 25 to decrease, and controlling the second driving member 33 to drive the rotational speed of the second driving wheel 35 to increase to achieve.

In actual implementation (not shown in the figure), the first auxiliary unit 41 is located at the second position S2, or it may not be detected by the first detection element 83 and the second detection element 85 at the same time. The control chip 91 determines that the state is normal, and the control chip 91 controls the speed difference between the first driving member 23 to drive the first driving wheel 25 and the second driving member 33 to drive the second driving wheel 35 to remain unchanged. .

Thereby, according to the technical features of the first slide rail unit 71 , the first detection unit 81 and the control chip 91 , the conveying condition of the material tape 100 can be monitored in real time, and the abnormal condition of the material belt 100 can be monitored in real time according to the abnormal condition of the material belt 100 The rotational speeds of the first driving member 23 and the second driving member 33 are adjusted to keep the material belt 100 being conveyed flat.

In actual implementation (not shown in the figure), the first sliding rail unit 71 and the first detection unit 81 can also be used for the third auxiliary unit 61 , which is arranged on the first auxiliary unit 61 by the third auxiliary unit 61 . The sliding block 75, instead of the first auxiliary unit 41, is provided on the first sliding block 75, and also has the effect of monitoring and adjusting the material strip 100 in real time.

In the first preferred embodiment, as shown in FIGS. 2 , 4 and 9 , it further includes a driving pin wheel 95 , which is arranged on the base 11 , and the driving pin wheel 95 has a third driving member 96 and a pin wheel 97. The third driving member 96 is electrically connected to the control chip 91, the control chip 91 controls the rotational speed of the third driving member 96, and the pin wheel 97 is located between the first auxiliary unit 41 and the third auxiliary unit Between 61 and 61 , the pin wheel 97 is connected to and driven by the third driving member 96 . The wheel surface of the pin wheel 97 has a plurality of guide pins 971 extending radially outward for passing through the material belt 100 There are a plurality of positioning holes 101 to improve the positioning accuracy of the material strip 100 . However, in actual implementation, if there is no requirement to improve the positioning accuracy of the material belt 100, the setting of the driving pin wheel 95 can be omitted, so the driving pin wheel 95 is not a necessary condition of the present invention.

In the first preferred embodiment, as shown in FIGS. 2 , 8 and 9 , the first auxiliary unit 41 moves to a fourth position S4 along with the first slider 75 ; the first detection unit 81 further has A third detection element 87, the third detection element 87 detects the position of the first auxiliary unit 41, and the control chip 91 is electrically connected to the third detection element 87 to receive the third detection When the first auxiliary unit 41 is located at the fourth position S4, it is detected by the third detecting element 87, and the control chip 91 controls the first, second and third driving elements 23. , 33, 96 to stop the operation to avoid the first auxiliary unit of the material belt 100 The first auxiliary unit 41 is damaged due to excessive pressure applied to 41 . However, in actual implementation, if there is no need for the control chip 91 to control the first, second and third driving members 23, 33, 96 to stop running, the first auxiliary unit 41 can be omitted to be accompanied by the first auxiliary unit 41. The technical feature of the slider 75 moving to the fourth position S4 is that the technical feature is not a necessary condition to achieve the present invention.

In the first preferred embodiment, as shown in FIGS. 3, 5-7, the first slider 75 is provided with a first blocking piece 751 and a second blocking piece 753, the first blocking piece 751 and the second blocking piece 751 The blocking pieces 753 extend from the first sliding block 75 and are located on two opposite sides of the first sliding rail 73 respectively; the first, second and third detecting elements 83 , 85 and 87 are light sensors, but Not limited to this; the first and second detecting elements 83 and 85 are located on opposite sides of the first sliding rail 73 , and the third detecting element 87 and the second detecting element 85 are located on the opposite sides of the first sliding rail 73 . On the same side; thus, the first blocking piece 751 is used to trigger the first detection piece 83 , and the second blocking piece 753 is used to trigger the second detection piece 85 and the third detection piece 87 . In actual implementation, the first blocking piece 751 , the second blocking piece 753 , the first detecting piece 83 , the second detecting piece 85 and the third detecting piece 87 can be changed according to requirements. Therefore, the arrangement of the blocking pieces 751 , 753 and the detecting elements 83 , 85 , 87 is not limited to the first preferred embodiment.

The structure of the first preferred embodiment of the present invention is described above, and the following describes the use state of the first preferred embodiment of the present invention.

During the normal operation of the present invention, as shown in FIGS. 2 , 6 and 9 , the material belt 100 is stretched and flattened, and the material belt 100 applies a second pressure P2 to the first auxiliary unit 41 . The elastic member 77 is compressed by the second pressure P2 by a first predetermined distance D1, the first auxiliary unit 41 is located at the second position S2 along with the first sliding block 75, and the first detection member 83 and the The second detection element 85 detects the first auxiliary unit 41 at the same time, and the control chip 91 receives the detection of the first auxiliary unit 41 detected by the first detection element 83 and the second detection element 85 The measurement signal is to judge that the conveying device 10 of the material belt 100 operates normally.

When the present invention operates abnormally, there are mainly three situations: the first situation is that the tension between the pin wheel 97 and the first auxiliary unit 41 is insufficient to cause the material belt 100 to be uneven. As shown in FIGS. 2 and 5 , the The material belt 100 applies a first pressure P1 to the first auxiliary unit 41, and the first elastic member 77 is compressed by the first pressure P1 to a second predetermined distance D2. The first auxiliary unit 41 follows the first pressure P1. The first slider 75 moves to the first position S1 , and the first detection element 83 detects the first auxiliary unit 41 and is not detected by the second detection element 85 , and the control chip 91 only detects the first auxiliary unit 41 . After receiving the detection signal that the first detection element 83 detects the first auxiliary unit 41, it is determined that the conveying pressure of the material belt 100 between the pin wheel 97 and the first auxiliary unit 41 is too low, and the control chip The system 91 controls and increases the rotational speed of the first driving wheel 25 and the needle wheel 97, so that the speed difference between the first driving wheel 25, the needle wheel 97 and the second driving wheel 35 is increased, so that the material belt 100 is subjected to the speed difference. The tension is increased until the pressure of the material tape 100 on the first auxiliary unit 41 rises back to the second pressure P2, the first auxiliary unit 41 moves to the second position S2 (the state in FIG. 6 ), and the control wafer 91 That is, after confirming that the conveying device 10 of the material belt 100 operates normally, the control wafer 91 stops adjusting the speed difference between the first driving wheel 25 and the pin wheel 97 and the second driving wheel 35 .

The second situation is that when the tension of the material belt 100 between the pin wheel 97 and the first auxiliary unit 41 is too large, as shown in FIGS. With a third pressure P3, the first elastic member 77 is compressed a third predetermined distance D3 by the third pressure P3, and the first auxiliary unit 41 moves to the third position S3 along with the first slider 75 , and only the second detection element 85 detects the first auxiliary unit 41 , the control chip 91 only receives the detection signal that the second detection element 85 detects the first auxiliary unit 41 , The control chip 91 determines that the conveying pressure of the material belt 100 between the pin wheel 97 and the first auxiliary unit 41 is too high, and the control wafer 91 controls to reduce the rotational speed of the first driving wheel 25 and the pin wheel 97 so that the The speed difference between the rotation speed of the first driving wheel 25 and the needle wheel 97 and the speed of the second driving wheel 35 is reduced, so that the pulling force on the material belt 100 is reduced until the material belt 100 presses the first auxiliary unit 41 When the force is reduced to the second pressure P2, the first auxiliary unit 41 moves to the second position S2 (as shown in FIG. 6 ), the control chip 91 confirms that the conveyor 10 of the material belt 100 operates normally, and the control chip 91 Stop adjusting the speed difference between the first driving wheel 25 and the needle wheel 97 and the second driving wheel 35 .

The third situation also occurs when the tension of the material belt 100 between the needle wheel 97 and the first auxiliary unit 41 is too large. As shown in FIGS. 2 , 8 and 9 , the material belt 100 is connected to the first auxiliary unit. 41 exerts a fourth pressure P4, the first elastic member 77 is compressed by a fourth predetermined distance D4 by the fourth pressure P4, and the first auxiliary unit 41 moves with the first slider 75 in the fourth At the position S4, the fourth detecting element 84 detects the first auxiliary unit 41, the control chip 91 receives a detection signal that the third detecting element 87 detects the first auxiliary unit 41, and the The control chip 91 determines that the conveying pressure of the material belt 100 between the pin wheel 97 and the first auxiliary unit 41 is too high, and the control wafer 91 controls the first driving wheel 25 , the second driving wheel 35 and the pin wheel 97 to stop the operation, so as to avoid excessive and abnormal pressure for conveying the material belt 100, which may cause damage to the material belt conveying device 10.

Accordingly, the present invention provides a material belt conveying device that automatically adjusts the tension of the material belt. With the technical features of the first slide rail unit, the first detection unit and the control chip, the conveying condition of the material belt can be monitored in real time, and the According to the abnormal condition of the material belt, the rotation speed of the first driving wheel, the second driving wheel and the needle wheel is adjusted in real time to keep the material belt in conveying flat.

The second preferred embodiment of the present invention provides a material belt conveying device 10' for automatically adjusting the tension of the material belt, which is basically the same as that of the first preferred embodiment described above, except that as shown in Figures 10-14, It further includes a second slide rail unit 72' and a second detection unit 82'; the second slide rail unit 72' is disposed on the base 11', and the second slide rail unit 72' has a second slide rail 74', a second sliding block 76' and a second elastic member 78', the second sliding block 76' is movably arranged on the second sliding rail 74', and the third auxiliary unit 61' is arranged on the The second sliding block 76' moves with the second sliding block 76', The second elastic member 78' is pressed against the second sliding block 76'. As shown in Figs. 12-14, when the third auxiliary unit 61' is subjected to different pressures from the material belt 100', the third The auxiliary unit 61' moves with the second slider 76' to at least a fifth position S5', a sixth position S6' or a seventh position S7'.

The second detection unit 82' is disposed on the base 11', the second detection unit 82' has a fourth detection element 84' and a fifth detection element 86', the fourth detection element 84' and the fifth detecting element 86' are used for detecting the position of the third auxiliary unit 61'.

As shown in FIG. 16 , the control chip 91 ′ is electrically connected to the fourth detection element 84 ′ and the fifth detection element 86 ′, so as to receive the fourth detection element 84 ′ and the fifth detection element The detection signal of 86' is used to control the rotation of the first driving member 23' and the third driving member 96'.

12-14 and FIG. 16 , when the third auxiliary unit 61 ′ is located at the sixth position S6 ′, it is simultaneously detected by the fourth detecting element 84 ′ and the fifth detecting element 86 ′ The measurement (as shown in FIG. 13 ) is judged as normal by the control chip 91 ′, and the control chip 91 ′ controls the rotation speed of the first driving member 23 ′ to drive the first driving wheel 25 ′, the second driving member The speed difference between the rotational speed of the second driving wheel 35' driven by 33' and the rotational speed of the needle wheel 97' driven by the third driving member 96' remains unchanged (the aforementioned speed difference refers to the rotational speed of the first driving wheel 25' minus the The rotational speed of the second driving wheel 35', and the rotational speed of the needle wheel 97' minus the rotational speed of the second driving wheel 35'); when the third auxiliary unit 61' is located at the fifth position S5', it is The detection by the four detecting elements 84' (as shown in FIG. 12) is determined by the control chip 91' as abnormal state, and the control chip 91' controls the second driving wheel 35', the pin wheel 97' and the The speed difference of the first driving wheel 25' increases (increases as a positive value); when the third auxiliary unit 61' is located at the seventh position S7', it is detected by the fifth detecting element 86', and is not detected by the fifth detecting element 86'. The fourth detecting element 84' detects (as shown in FIG. 14), and is judged as abnormal state by the control chip 91', and the control chip 91' controls the second driving wheel 35' and the pin wheel 97' and the The speed difference of the first drive wheel 25' is reduced (positive reduction, not negative reduction).

In actual implementation, to increase the speed difference between the second driving wheel 35', the pin wheel 97' and the first driving wheel 25', the control chip 91' can control the second and third driving elements by 33', 96', respectively driving the rotation speed of the second driving wheel 35' and the pin wheel 97' to increase, and controlling the rotation speed of the first driving member 23' to drive the first driving wheel 25' to remain unchanged, or By controlling the second and third driving members 33', 96' to drive the second driving wheel 35', the rotation speed of the needle wheel 97' is constant, and controlling the first driving member 23' to drive the first driving wheel 25', or by controlling the second and third driving members 33', 96' to drive the second driving wheel 35' and the pin wheel 97' respectively, and control to drive the first driving wheel 25' of rev reduction to achieve.

In actual implementation, to reduce the speed difference between the second driving wheel 35', the pin wheel 97' and the first driving wheel 25', the control chip 91' can control the second and third driving members by 33', 96', respectively driving the second driving wheel 35', the rotation speed of the pin wheel 97' to decrease, and controlling the first driving member 23' to drive the rotation speed of the first driving wheel 25' to remain unchanged, or By controlling the second driving member 33' and the third driving member 96', the rotational speed of the second driving wheel 35' and the pin wheel 97' can be driven to remain unchanged, and the first driving member 23' can be controlled to drive The rotation speed of the first driving wheel 25' is reduced, or it can be achieved by controlling the second driving member 33' and the third driving member 96' to drive the second driving wheel 35' and the pin wheel 97' respectively. The rotational speed is increased, and the rotational speed of the first driving member 23' to drive the first driving wheel 25' is controlled to decrease.

In actual implementation (not shown in the figure), when the third auxiliary unit 61' is located at the sixth position S6', the fourth detection element 84' and the fifth detection element 86' may not be used at the same time. Detection, the control chip 91' also controls the speed difference of the first driving wheel 25', the second driving wheel 35' and the pin wheel 97' to remain unchanged.

In the second preferred embodiment, as shown in Figures 15-16, the third auxiliary unit 61' moves to an eighth position S8' along with the second slider 76'; the second detection unit 82' Further, there is a sixth detecting element 88', the sixth detecting element 88' detects the position of the third auxiliary unit 61', and the control chip 91' is electrically The sixth detection element 88' is connected to receive the detection signal of the sixth detection element 88'; when the third auxiliary unit 61' is located at the eighth position S8', it is detected by the sixth detection element 88. 'Detection, the control chip 91' controls the first, second and third driving elements 23', 33', 96' to stop running, so as to prevent the tape 100' from applying the third auxiliary unit 61' Excessive pressure will cause damage to the third auxiliary unit 61 ′. However, in actual implementation, if there is no requirement for the control chip 91' to control the first, second and third driving members 23', 33', 96' to stop running, the third auxiliary unit 61' can be omitted It is a technical feature of moving to the eighth position S8' with the second sliding block 76', so this technical feature is not a necessary condition for achieving the present invention.

In the second preferred embodiment, as shown in FIGS. 10 , 11 and 15 , it further includes a fourth auxiliary unit 62 ′, which is arranged on the base 11 ′ and located between the second auxiliary unit 51 ′ and the third auxiliary unit 62 ′. Between the auxiliary units 61 ′, the fourth auxiliary unit 62 ′ has a fourth contact portion 64 ′, and the position of the fourth contact portion 64 ′ is lower than the second contact portion 53 ′. 'Located at the eighth position S8', the material tape 100' is separated from the second contact portion 53' of the second auxiliary unit 51', and the fourth auxiliary unit 62' is pressed against the fourth contact portion 64' The material belt 100 ′ is used to prevent the material belt 100 ′ from exerting excessive pressure on the third auxiliary unit 61 ′, thereby causing damage to the third auxiliary unit 61 ′. However, in actual implementation, since the third auxiliary unit 61' is located at the eighth position S8', the control chip 91' controls the first, second and third driving elements 23', 33', 96 'stop running, so the fourth auxiliary unit 61' can also be omitted, so the fourth auxiliary unit 61' is not a necessary condition of the present invention.

In the second preferred embodiment, the fourth auxiliary unit 61 ′ is implemented by a roller. In actual implementation, it can also be implemented by a plate with a smooth surface and an arc shape, or other difficult The material strip 100' is implemented as a structure (such as a cylindrical rod with a smooth surface) that generates excessive resistance, so the implementation of the fourth auxiliary unit 61' is not limited to the second preferred embodiment.

As shown in FIGS. 12-15 , in the second preferred embodiment, the second slider 76 ′ is provided with a third blocking piece 761 ′ and a fourth blocking piece 763 ′. The third blocking piece 761 ′ and the The fourth blocking piece 763' extends from the second sliding block 76' and is located on two opposite sides of the second sliding rail 74' respectively; the fourth, fifth and sixth detectors 84', 86', 88 ' is a light sensor, but not limited thereto; the fourth and fifth detection elements 84', 86' are located on opposite sides of the second sliding rail 74', and the sixth detection element 88 ' is located on the same side as the fifth detection piece 86'; thereby, the third blocking piece 761' is used to trigger the fourth detection piece 84', and the fourth blocking piece 763' is used to trigger the first detection piece 84'. The fifth detection element 86' and the sixth detection element 88'. In actual implementation, the third blocking piece 761 ′, the fourth blocking piece 763 ′, the fourth detecting piece 84 ′, the fifth detecting piece 86 ′ and the sixth detecting piece 84 ′ can be changed according to requirements. The position of the detection piece 88', the arrangement of the blocking pieces 761', 763' and the detection pieces 84', 86', 88' is not limited to the second preferred embodiment.

The structure of the second preferred embodiment of the present invention is described above, and the following describes the use state of the second preferred embodiment of the present invention.

During the normal operation of the present invention, the material belt 100' is stretched and flattened. As shown in Figures 13 and 16, the material belt 100' applies a sixth pressure P6' to the third auxiliary unit 61'. The two elastic members 78' are compressed by the sixth pressure P6' by a fifth predetermined distance D5', the third auxiliary unit 61' is located at the sixth position S6' along with the second sliding block 76', and the first The fifth detection element 86' and the sixth detection element 88' detect the third auxiliary unit 61' simultaneously, and the control chip 91' receives the fourth detection element 84' and the fifth detection element 86' detects the detection signal of the third auxiliary unit 61', and the control chip 91' judges that the material belt conveying device 10' operates normally.

When the present invention operates abnormally, there are mainly three situations: the first situation is that the insufficient tension between the pin wheel 97' and the third auxiliary unit 61' causes the material belt 100' to be uneven, as shown in Figures 12 and 16 , the material belt 100' is compressed by a sixth predetermined pressure by applying a fifth pressure P5' to the third auxiliary unit 61' Distance D6', the third auxiliary unit 61' moves to the fifth position S5' along with the second slider 76', and the fourth detecting element 84' detects the third auxiliary unit 61', and not detected by the fifth detection element 86', the control chip 91' only receives the detection signal that the fourth detection element 84' detects the third auxiliary unit 61', that is, determines the pin wheel The conveying pressure of the material belt 100' between 97' and the third auxiliary unit 61' is too low, the control chip 91' controls the rotation speed of the second driving member 33' and the third driving member 96' to elevate, so that the The speed difference between the second driving wheel 35 ′ and the needle wheel 97 ′ and the first driving wheel 25 ′ increases, so that the pulling force on the material belt 100 ′ is increased until the material belt 100 ′ has the third auxiliary unit 61 . ' pressure rises back to the sixth pressure P6' (as shown in FIG. 13 ), the control wafer 91 ′ confirms that the belt conveying device 10 ′ operates normally, and the control wafer 91 ′ stops controlling and increasing the second driving wheel 35 ' and the speed difference between the needle wheel 97' and the first driving wheel 25'.

In the second case, when the tension force of the material belt 100' between the needle wheel 97' and the third auxiliary unit 61' is too large, the material belt 100' exerts a seventh pressure on the third auxiliary unit 61' P7', as shown in Figures 14 and 16, the second elastic member 78' is compressed by the seventh pressure P7' by a seventh predetermined distance D7', and the third auxiliary unit 61' follows the second slider 76' moves to the seventh position S7', and the fifth detection element 86' detects the third auxiliary unit 61' and is not detected by the fourth detection element 84', the control chip 91 ' is received by the fifth detection element 86' to detect the detection signal of the third auxiliary unit 61', and the control chip 91' determines the connection between the pin wheel 97' and the third auxiliary unit 61'. If the conveying pressure of the material belt 100' is too high, the control chip 91' controls to reduce the rotation speed of the second driving wheel 35' and the pin wheel 97', so that the second driving wheel 35' and the pin wheel 97' are connected with the first driving wheel 35' and the pin wheel 97'. The speed difference of the driving wheel 25' is reduced, so that the pulling force on the material belt 100' is reduced until the pressure of the material belt 100' on the third auxiliary unit 61' is reduced to the sixth pressure P6', the third auxiliary When the unit 61' is located at the sixth position S6' (as shown in FIG. 13), the control chip 91' confirms that the belt conveying device 10' operates normally, and the control chip 91' stops controlling and reduces the second driving wheel 35', the speed difference between the needle wheel 97' and the first driving wheel 25'.

The third situation also occurs when the pulling force of the material belt 100' between the pin wheel 97' and the first auxiliary unit 41' is too large. As shown in Figures 15 and 16, the material belt 100' is connected to the third The auxiliary unit 61' applies an eighth pressure P8', and the second elastic member 78' is compressed by the eighth pressure P8' by an eighth predetermined distance D8', and the third auxiliary unit 61' follows the second pressure P8'. The slider 76' moves to the eighth position S8', the sixth detection element 88' detects the third auxiliary unit 61', and the control chip 91' receives the detection of the sixth detection element 88'. When the detection signal of the third auxiliary unit 61' is detected, the control chip 91' determines that the pressure of the material belt 100' between the pin wheel 97' and the third auxiliary unit 61' is too high, and the control chip 91' The system controls the first driving member 23', the second driving member 33' and the third driving member 96' to stop running, so as to avoid excessive and abnormal pressure for conveying the material belt 100', thereby causing the material belt conveying device 10' damage.

Accordingly, the present invention provides a material belt conveying device that automatically adjusts the tension of the material belt. With the technical features of the second slide rail unit, the second detection unit and the control chip, the conveying condition of the material belt can be monitored in real time, and the The rotational speed of the first driving member, the second driving member and the third driving member is adjusted in real time according to the conveying condition of the material belt, so as to keep the material belt in conveying flat.

The remaining structures and functions of the second preferred embodiment are the same as those of the first preferred embodiment, so they will not be repeated.

10: Material belt conveyor

11: Pedestal

21: Tape receiving unit

23: The first drive

25: First drive wheel

251: Receiving Department

31: Tape output unit

33: Second drive

35: Second drive wheel

351: Output part

41: First Auxiliary Unit

43: The first contact part

51: Second Auxiliary Unit

53: Second contact part

61: Third Auxiliary Unit

63: The third contact part

73: The first slide

77: First elastic piece

95: drive pin wheel

96: The third drive

97: Needle wheel

100: material belt

Claims (11)

A material belt conveying device for automatically adjusting the tension force of the material belt, comprising: a base; Connected to and driven by the first driving member, the driving wheel train is used for receiving a material belt, and the position where the driving wheel receives the material belt is defined as a receiving part; a material belt output unit is arranged on the base , the material belt output unit has a second driving member and a driven wheel, the driven wheel is connected to the second driving member and driven by it, the driven wheel train is used to output the material belt, and defines the driven wheel to output the material The position of the belt is an output part; a first auxiliary unit is set on the base, the first auxiliary unit has a first contact part, the position of the first contact part is higher than the output part of the driven wheel, the The first auxiliary unit pushes against the material belt with the first contact part; a first sliding rail unit is arranged on the base, and the first sliding rail unit has a first sliding rail, a first sliding block and a a first elastic piece, the first sliding block is slidably arranged on the first sliding rail, the first auxiliary unit is arranged on the first sliding piece, the first elastic piece is pressed against the first sliding piece , when the first auxiliary unit is subjected to different pressures from the material belt, the first auxiliary unit moves with the first slider to at least a first position, a second position or a third position; a first detection a detection unit, set on the base, the first detection unit has a first detection element and a second detection element, the first detection element and the second detection element are used for detecting the first detection element The position of an auxiliary unit; a second auxiliary unit, set on the base, the second auxiliary unit has a second contact portion, the position of the second contact portion is lower than the first contact portion, the second auxiliary unit The unit is pressed against the material strip with the second contact portion; A third auxiliary unit is set on the base, the third auxiliary unit has a third contact part, the position of the third contact part is higher than the receiving part of the driven wheel, the third auxiliary unit is based on the first Three contact parts abut the material strip; a control chip is electrically connected to the first detecting element, the second detecting element, the first driving element and the second driving element, so as to receive the first detecting element and the detection signal of the second detection piece, so as to control the rotation of the first and second driving pieces; and a driving pin wheel, set on the base, the driving pin wheel has a third driving piece and a pin wheel, the third driving part is electrically connected to the control chip, the control chip controls the rotation speed of the third driving part, the pin wheel is connected to and driven by the third driving part, the wheel surface of the pin wheel has A plurality of guide pins extending radially outward are used to pass through a plurality of positioning holes of the material tape; wherein, the first auxiliary unit is located between the material tape receiving unit and the material tape output unit, and the second auxiliary unit The unit is located between the first auxiliary unit and the material tape receiving unit, and the third auxiliary unit is located between the second auxiliary unit and the material tape receiving unit; wherein, when the first auxiliary unit is located at the first position, is detected by the first detecting element and not detected by the second detecting element; when the first auxiliary unit is located at the second position, it is simultaneously detected by the first detecting element and the second detecting element Detected by the first detection component and the second detection component at the same time, that is, when the first auxiliary unit is relatively large in size, it is detected by the first detection component and the second detection component at the same time. When detected by the two detection elements, it can be determined that the first auxiliary unit is located at the second position, and when the first auxiliary unit is relatively small, there will also be the first detection element and the second auxiliary unit. None of the detecting elements detect the condition of the first auxiliary unit, and it is also determined that the first auxiliary unit is at the second position; when the first auxiliary unit is at the third position, it is detected by the second detected by the first detection device and not detected by the first detection device. The material belt conveying device for automatically adjusting the tension of the material belt according to claim 1, wherein: the first sliding block is provided with a first blocking piece and a second blocking piece, and the first blocking piece and the second blocking piece are It extends from the first sliding block and is located on two opposite sides of the first sliding rail, respectively. The material belt conveying device for automatically adjusting material belt tension according to claim 1, wherein: the first auxiliary unit moves to a fourth position along with the first sliding block; the first detection unit further has a third a detection element, the third detection element is used for detecting the position of the first auxiliary unit, the control chip is electrically connected to the third detection element, so as to receive the detection signal of the third detection element, When the first auxiliary unit is located at the fourth position, it is detected by the third detecting element. The material belt conveying device for automatically adjusting material belt tension as described in claim 3, wherein: the first and second detection elements are located on opposite sides of the first slide rail, and the third detection element is connected to The second detection element is located on the same side. The material belt conveying device for automatically adjusting the material belt tension as described in claim 3, wherein: the first, second and third detection elements are light sensors. The material belt conveying device for automatically adjusting the tension of the material belt according to claim 1, further comprising: a second sliding rail unit and a second detecting unit; the second sliding rail unit is arranged on the base, the first sliding rail unit is The two sliding rail units have a second sliding rail, a second sliding block and a second elastic member, the second sliding block is movably arranged on the second sliding rail, and the third auxiliary unit is arranged on the first sliding rail. Two sliders, the second elastic member is pressed against the second slider, when the third auxiliary unit is subjected to different pressures from the material belt, the third auxiliary unit moves with the second slider at least one a fifth position, a sixth position or a seventh position; the second detection unit is set on the base, the second detection unit has a fourth detection part and a fifth detection part, the first detection unit The fourth detection element and the fifth detection element are used to detect the position of the third auxiliary unit; the control chip is electrically connected to the fourth detection element and the fifth detection element to receive the fourth detection element The detection piece and the fifth detection piece the detection signal, and then control the rotation of the first driving member and the third driving member; when the third auxiliary unit is at the fifth position, it is detected by the fourth detection member; when the third auxiliary unit is located at the fifth position Located in the sixth position, it is detected by the fourth detection element and the fifth detection element at the same time, or is not detected by the fourth detection element and the fifth detection element at the same time; when the third detection element The auxiliary unit is located at the seventh position and is detected by the fifth detecting element and not detected by the fourth detecting element. The material belt conveying device for automatically adjusting the tension of the material belt according to claim 6, wherein: the second sliding block is provided with a third blocking piece and a fourth blocking piece, and the third blocking piece and the fourth blocking piece are It extends from the second sliding block and is located on two opposite sides of the second sliding rail, respectively. The material belt conveying device for automatically adjusting material belt tension as claimed in claim 6, wherein: the third auxiliary unit moves to an eighth position along with the second sliding block; the second detection unit further has a first Six detection elements, the sixth detection element detects the position of the third auxiliary unit, and the control chip is electrically connected to the sixth detection element to receive the detection signal of the sixth detection element; when The third auxiliary unit is located at the eighth position and is detected by the sixth detecting element. The material belt conveying device for automatically adjusting material belt tension as claimed in claim 6, wherein: the fourth and fifth detection elements are located on opposite sides of the second sliding rail, and the sixth detection element is connected to The fifth detection element is located on the same side. The material belt conveying device for automatically adjusting the material belt tension according to claim 6, wherein: the fourth, fifth and sixth detecting elements are light sensors. The material belt conveying device for automatically adjusting material belt tension as described in claim 6, further comprising a fourth auxiliary unit disposed on the base and located between the second auxiliary unit and the third auxiliary unit, The fourth auxiliary unit has a fourth contact portion, and the position of the fourth contact portion is lower than the The second contact part, when the third auxiliary unit is located at the eighth position, the material strip is separated from the second contact part of the second auxiliary unit, and the fourth auxiliary unit is pressed against the material strip with the fourth contact part .

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