One-way material pushing mechanism for long and narrow space

Abstract

The utility model discloses a kind of long and narrow space one-way poking mechanism, including sectional material support, belt wheel mechanism, poking assembly, and poking assembly includes driving assembly and driven assembly, driving assembly and driven assembly are connected by poking rod, bracing bar, belt wheel mechanism is all or partially installed in sectional material support, poking assembly is installed in sectional material support, driving assembly in the poking assembly in belt wheel mechanism is driven, driven assembly, poking rod, bracing bar moves in sectional material support, and reversing component is respectively installed in sectional material support on the different direction of the moving path of poking assembly, by reversing component and poking assembly cooperation, triggering belt wheel mechanism drives poking assembly reversing, poking rod can be converted from prostrate state to vertical state or from vertical state to prostrate state in reversing process.The utility model is stable, speed adjustable, reliable in structure, and long distance one-way repeated poking can be realized in relatively narrow space.

Description

Technical Field

[0001] This utility model relates to the field of material feeding mechanisms, specifically a narrow-space unidirectional material feeding mechanism. Background Technology

[0002] One-way feeding mechanisms are used for unidirectional material feeding and are widely used in automated devices. Currently, most systems on the market use cylinders, rotary chains, or similar structures to achieve this unidirectional feeding function.

[0003] However, due to space constraints in some devices, it is necessary to achieve long-distance repeated material feeding within a relatively confined space, which is difficult to achieve with these structural designs. The technical problem this invention aims to solve is how to design a mechanism that provides stable material feeding, adjustable speed, reliable structure, and the ability to achieve long-distance repeated unidirectional material feeding within a relatively confined space. Utility Model Content

[0004] This invention provides a unidirectional feeding mechanism for narrow spaces, which solves the problem that existing unidirectional feeding mechanisms are unable to achieve long-distance repeated unidirectional feeding in narrow spaces.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A narrow-space unidirectional feeding mechanism, characterized in that it comprises: The profile bracket (1) is hollow inside, and a sliding opening is provided on one side of the profile bracket (1) parallel to its own long side. The sliding opening is parallel to the long side of the profile bracket (1). The pulley mechanism has its transmission belt wholly or partially located inside the profile bracket (1). The transmission direction of the pulley mechanism is parallel to the long side of the profile bracket (1), and the projection of the sliding end of the profile bracket (1) into the interior of the profile bracket (1) is located between the two belt bodies of the transmission belt. The material feeding assembly includes an active component (100) and a driven component (200); the material feeding assembly is movably installed inside the profile bracket (1) and located between the two sides of the conveyor belt in the pulley mechanism; the active component (100) and the driven component (200) in the material feeding assembly are arranged side by side between the two sides of the conveyor belt. The active component (100) is located on the side of the conveyor belt opposite to the driven component (200), which is in close contact with the inner side of the belt body on one side. There is a gap between the side of the driven component (200) opposite to the active component (100) and the other side of the conveyor belt. The active component (100) has one-way forks at both ends in the moving direction, and the driven component (200) has pull blocks at both ends in the moving direction. The one-way forks at each end of the active component (100) exceed the pull blocks at the corresponding ends of the driven component (200) in the same moving direction. The active component (100) includes a feeding rod (13), one end of which is rotatably connected to the side of the active component (100) facing the driven component (200). The rotation center line of one end of the feeding rod (13) is perpendicular to the conveyor belt. The conveying direction of the belt, and the material-pulling rod (13) can be rotated to the other end protruding from the sliding opening of the profile bracket (1); the driven component (200) includes a support rod (14), one end of which is rotatably connected to the side of the driven component (200) facing the driving component (100), the rotation center line of one end of the support rod (14) is perpendicular to the conveying direction of the conveying belt, and the other end of the support rod (14) is rotatably connected to the rod body of the material-pulling rod (13), the rotation center line of the other end of the support rod (14) is perpendicular to the conveying direction of the conveying belt; and, the rotation connection position of one end of the material-pulling rod (13) on the side of the driving component (100) facing the driven component (200) is offset from the rotation connection position of one end of the support rod (14) on the side of the driven component (200) facing the driving component (100); It also includes two sets of reversing components with the same structure. The two sets of reversing components are respectively installed on the other side of the profile bracket (1) opposite to the side of the profile bracket (1) where the slide is located, and the two sets of reversing components are respectively located on the moving paths of the material feeding component in different moving directions. Each reversing assembly includes a pivot seat fixed to the other side of the profile bracket (1). A cam pivot is rotatably mounted on top of each pivot seat. Each cam pivot is located inside the profile bracket (1) and between the two belt bodies of the conveyor belt. The axial direction of each cam pivot is parallel to the transmission direction of the conveyor belt. A spring is connected between one end of the axial direction of each cam pivot and the corresponding pivot seat. Each cam pivot has a cam structure, which is used to work in cooperation with the pull block at the corresponding end of the driven assembly (200) and the one-way stop fork at the corresponding end of the active assembly (100). A motion detection switch is also installed on each pivot seat. Each motion detection switch is located inside the profile bracket (1) and between the two belt bodies of the conveyor belt. Each motion detection switch is used to work in cooperation with the one-way stop fork at the corresponding end of the active assembly (100).

[0006] Furthermore, the profile bracket (1) has openings at both ends along its long side, with one end of the opening being covered by a rear sealing plate (6). In the pulley mechanism, the drive pulley (5) is fixed, and the driven pulley (10) and driven wheel shaft (9) are located inside the profile bracket (1) and close to the rear end plate (6). The driven wheel shaft (9) and the rear end plate (6) are connected by adjusting bolts. The distance between the rear end plate (6) and the driven wheel shaft (9) can be adjusted by adjusting bolts, thereby adjusting the tension of the transmission belt between the drive pulley (5) and the driven pulley (10).

[0007] Furthermore, a first permanent magnet (106) is fixed on the side of the active component (100) facing the driven component (200), and a second permanent magnet (206) is fixed on the side of the driven component (200) facing the active component (100). The magnetic surfaces of the first permanent magnet (106) and the second permanent magnet (206) are arranged opposite each other.

[0008] Furthermore, the active component (100) also includes an active end slider seat plate (101) and a belt fastener (105). The active end slider seat plate (101) and the belt fastener (105) are arranged opposite to each other and connected as a whole. The two ends of the active end slider seat plate (101) in the moving direction are respectively set as the one-way stop forks. Among them, one side of the belt fixing member (105) is closely attached to the inner side of the conveyor belt, the side of the active end slider seat plate (101) facing away from the belt fixing member (105) is facing the driven component (200), and one end of the feeding rod (13) is rotatably connected to the side of the active end slider seat plate (101) facing the driven component (200).

[0009] Furthermore, in the active component (100), a number of active guide pins are fixedly connected between the active end slider seat plate (101) and the belt fastener (105), and the active end slider seat plate (101) and the belt fastener (105) are connected as a whole through the number of active guide pins. The axial direction of each active guide pin is perpendicular to the transmission direction of the conveyor belt. One of the active guide pins is a long active guide pin (104). One end of the long active guide pin (104) passes through the active end slider seat plate (101) and extends to the side of the active end slider seat plate (101) facing the driven component (200). One end of the feed rod (13) is rotatably connected to the protruding end of the long active guide pin (104) through a hole.

[0010] Furthermore, each active guide pin is rotatably mounted with an active guide wheel, and an active guide wheel rail is also fixed inside the profile bracket (1) at the position between the two belt bodies of the conveyor belt. The active guide wheel rail extends along the transmission direction of the conveyor belt, and the active guide wheel is rotatably mounted on the active guide wheel rail.

[0011] Furthermore, the driven component (200) also includes a driven end slider seat plate (201) and a stop block (205). The driven end slider seat plate (201) and the stop block (205) are arranged opposite to each other and connected as a whole. The two ends of the driven end slider seat plate (201) in the moving direction are respectively set as the pulling blocks. There is a gap between one side of the stop block (205) and the other side of the conveyor belt. The side of the driven end slider seat plate (201) facing away from the stop block (205) faces the active component (100). One end of the support rod (14) is rotatably connected to the side of the driven end slider seat plate (201) facing the active component (100).

[0012] Furthermore, in the driven assembly (200), a plurality of driven guide pins are fixedly connected between the driven end slider seat plate (201) and the stop block (205), and the driven end slider seat plate (201) and the stop block (205) are connected as a whole through the plurality of driven guide pins; The axial direction of each driven guide pin is perpendicular to the transmission direction of the conveyor belt. One of the driven guide pins is a long driven guide pin (204). One end of the long driven guide pin (204) passes through the driven end slider seat plate (201) and extends to the side of the driven end slider seat plate (201) facing the driving component (100). One end of the support rod (14) is rotatably connected to the protruding end of the long driven guide pin (204) through a hole.

[0013] Furthermore, each driven guide pin is rotatably mounted with a driven guide wheel, and a driven guide wheel rail is also fixed inside the profile bracket (1) at the position between the two belt bodies of the conveyor belt. The driven guide wheel rail extends along the transmission direction of the conveyor belt, and the driven guide wheel is rotatably mounted on the driven guide wheel rail.

[0014] Compared with the prior art, the advantages of this utility model are: This invention features stable material feeding, adjustable speed, and reliable structure, enabling long-distance, repeated unidirectional material feeding within a relatively narrow space.

[0015] The material-shifting component of this invention can be arranged inside the profile support of the C-shaped profile structure. It has a compact structure and can be used in extremely narrow spaces.

[0016] In this invention, the uprighting and lowering of the material-feeding rod of the material-feeding assembly are achieved by using a relatively movable active component, a driven component, and a hinged material-feeding rod and support rod, resulting in a simple and reliable structure. The active and driven components have a compact structure, providing reliable and smooth guidance. Utilizing the principle of like poles repulsion between the first and second permanent magnets, the material-feeding rod can be quickly switched between upright and lowered states. Furthermore, it is less affected by external interference during operation, exhibiting high reliability and a long service life.

[0017] In this invention, the two reversing components use a cam shaft with a two-cam structure and a spring to switch the vertical and horizontal states of the material-pulling rod. The same motor drives the pulley mechanism, which can achieve the switching between the vertical and horizontal states of the material-pulling rod. The structure is compact, reliable, and low in cost. Furthermore, the reversing components are modularly designed and can be installed and fixed at any position on the profile bracket as needed, making the material-pulling stroke adjustable.

[0018] In this invention, the tension of the conveyor belt in the belt conveyor mechanism can be achieved by using adjusting bolts, resulting in a simple and compact structure. Attached Figure Description

[0019] Figure 1 This is an isometric schematic diagram of an embodiment of this utility model.

[0020] Figure 2 This is a front view of an embodiment of this utility model.

[0021] Figure 3 This is a top view of an embodiment of the present invention.

[0022] Figure 4 This is a C-C view of an embodiment of this utility model.

[0023] Figure 5 This is a cross-sectional view of an embodiment of this utility model.

[0024] Figure 6 This is a cross-sectional view of embodiment BB of this utility model.

[0025] Figure 7 This is a cross-sectional view of the feeding assembly in an embodiment of this utility model.

[0026] Figure 8 This is a schematic diagram of the active component in an embodiment of this utility model.

[0027] Figure 9 This is a schematic diagram of the driven component in an embodiment of this utility model.

[0028] Figure 10a This is an isometric schematic diagram of the rear commutation assembly in an embodiment of this utility model.

[0029] Figure 10b This is a front view of the rear reversing component in an embodiment of this utility model.

[0030] Figure 10c This is a side view of the rear reversing component in an embodiment of this utility model.

[0031] Figure 10d This is a top view of the rear reversing assembly in an embodiment of this utility model. Detailed Implementation

[0032] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0033] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 As shown, this embodiment discloses a narrow space unidirectional material feeding mechanism, including a profile support 1 with a C-shaped profile structure, a pulley mechanism, a material feeding assembly, and a reversing assembly.

[0034] In this embodiment, the profile bracket 1 is hollow inside, and its long side extends horizontally in the front-to-back direction. The front and rear ends of the profile bracket 1 are respectively set as openings, and a rear sealing plate 6 is fixedly installed at the rear opening. A sliding opening is provided on the upper side of the profile bracket 1, which extends horizontally in the front-to-back direction, and the front and rear ends of the sliding opening are respectively located on the front and rear sides of the upper side of the profile bracket 1.

[0035] The pulley mechanism can be a belt transmission mechanism, a sprocket transmission mechanism, or other pulley transmission mechanisms. The pulley mechanism includes a drive pulley 5, a driven pulley 10, and a transmission belt 12. One end of the transmission belt 12 is fitted onto the drive pulley 5, and the other end of the transmission belt 12 is fitted onto the driven pulley 10.

[0036] In the pulley mechanism, the driving pulley 5 and the driven pulley 10 are both vertical in axis, and are distributed front and rear. A rolling bearing is coaxially mounted in the center hole of the driven pulley 10, and a driven wheel shaft 9 is coaxially and rotatably mounted through the rolling bearing. The driven pulley 10, the rolling bearing, and the driven wheel shaft 9 are integrally arranged inside the profile bracket 1 on the rear side near the rear cover 6. A first driven pulley positioning washer 11-1 is provided between the upper inner side of the profile bracket 1 and the upper wheel surface of the driven pulley 10, and a second driven pulley positioning washer 11-2 is provided between the lower inner side of the profile bracket 1 and the lower wheel surface of the driven pulley 10. The first driven pulley positioning washer 11-1 and the second driven pulley positioning washer 11-2 are respectively fitted onto the corresponding protruding sections of the driven pulley shaft 9 that pass through the rolling bearing, and the driven pulley 10 is separated from the upper and lower inner sides of the profile bracket 1 by the first driven pulley positioning washer 11-1 and the second driven pulley positioning washer 11-2.

[0037] The drive pulley 5 in the pulley mechanism is located outside the front opening of the profile support 1. Therefore, the transmission belt 12 in the pulley mechanism is partially located inside the profile support 1. The two sides of the transmission belt 12 in the pulley mechanism are opposite each other, that is, both sides are parallel to the left and right sides of the profile support 1. Furthermore, the projection of the sliding end of the profile support 1 into the interior of the profile support 1 is located between the left and right sides of the transmission belt 12.

[0038] A reducer base plate 3 is provided below the drive pulley 5. A servo motor and a reducer 4 are installed at the bottom of the reducer base plate 3. The output shaft of the servo motor is coaxially connected to the input shaft of the reducer 4. The output shaft of the reducer 4 passes upward through the reducer base plate 3 and is coaxially connected to the drive pulley 5 in the pulley mechanism. The reducer base plate 3 and the drive pulley 5 are fixed in position.

[0039] The rear end plate 6 of the profile bracket 1 is spirally connected to a first adjusting bolt 7-1 and a second adjusting bolt 7-2 along the front-to-back horizontal direction. The first adjusting bolt 7-1 is spirally connected to the through section of the driven wheel shaft 9 located above the rolling bearing, and the second adjusting bolt 7-2 is spirally connected to the through section of the driven wheel shaft 9 located below the rolling bearing. Furthermore, the rear end plate 6 is tightly fitted with a first perforated round nut 8-1 and a second perforated round nut 8-2. The first perforated round nut 8-1 is screwed onto the first adjusting bolt 7-1, and the second perforated round nut 8-2 is screwed onto the second adjusting bolt 7-2. The connection is achieved through the first adjusting bolt 7-1 and the second adjusting bolt 7-2, and the first adjusting bolt 7-1 and the second adjusting bolt 7-2 are locked together by the first perforated round nut 8-1 and the second adjusting bolt 7-2 respectively, thus realizing a detachable and fixed connection between the rear end plate 6 and the driven wheel shaft 9.

[0040] In this embodiment, the servo motor drives the drive pulley 5 in the pulley mechanism to rotate through the reducer 4, thereby causing the transmission belt 12 to move. During the movement of the transmission belt 12, the driven pulley 10 rotates passively. Since the drive pulley 5 and the driven pulley 10 are distributed front and back, the transmission direction of the transmission belt 12 in the pulley mechanism is the front and back horizontal direction.

[0041] When it is necessary to adjust the tension of the transmission belt 12 in the pulley mechanism, loosen the first perforated round nut 8-1 and the second perforated round nut 8-2, and rotate the first adjusting bolt 7-1 and the second adjusting bolt 7-2. This adjusts the distance between the rear sealing plate 6 and the driven wheel shaft 9, that is, the distance between the rear sealing plate 6 and the driven pulley 10, and further adjusts the distance between the driven pulley 10 and the drive pulley 5, thereby achieving the adjustment of the tension of the transmission belt 12.

[0042] It should be noted that although this embodiment is illustrated by taking the drive pulley 5 of the pulley mechanism as being located outside the front of the profile support 1, in actual use, the drive pulley 5 can also be located inside the profile support 1. Thus, the entire pulley mechanism is located inside the profile support 1. In this case, by adjusting the installation position of the servo motor and the reducer 4, the above-mentioned functions of working of the pulley mechanism and adjusting the tension of the transmission belt can also be achieved.

[0043] like Figure 7 As shown, the feeding assembly in this embodiment includes an active assembly 100 and a driven assembly 200.

[0044] The material feeding assembly is integrally mounted inside the profile bracket 1 and located between the left and right sides of the conveyor belt in the pulley mechanism. The driving component 100 and the driven component 200 in the material feeding assembly are arranged side-by-side, left and right, between the left and right sides of the conveyor belt. The driving component 100 is closer to the left side of the conveyor belt, and the driven component 200 is closer to the right side. The left side of the driving component 100 is flush against the inner surface of the left side of the conveyor belt, and the right side of the driving component 100 is opposite to the left side of the driven component 200. There is a gap between the right side of the driven component 200 and the right side of the conveyor belt.

[0045] Specifically, in this embodiment, such as Figure 8 As shown, the active component 100 includes an active end slider seat plate 101, a belt fastener 105, a first active guide wheel pin 103-1, a second active guide wheel pin 103-2, a long active guide wheel pin 104 serving as a third active guide wheel pin, a first active guide wheel 102-1, a second active guide wheel 102-2, a third active guide wheel 102-3, and a feeding rod 13.

[0046] The belt fastener 105 and the drive-end slider seat plate 101 are arranged side by side on the left and right. The left side of the belt fastener 105 is close to the inner side of the left side of the conveyor belt 12, and the belt fastener 105 is connected and fixed to the conveyor belt 12 by a belt pressure plate. The right side of the belt fastener 105 is opposite to the left side of the drive-end slider seat plate 101, and the right side of the drive-end slider seat plate 101 is opposite to the left side of the driven assembly 200. The upper part of the front end of the drive-end slider seat plate 101 is cut off to form an L-shaped front one-way stop fork 108, and the upper part of the rear end of the drive-end slider seat plate 101 is cut off to form an L-shaped rear one-way stop fork 107. A first permanent magnet 106 is fixed to the rear right side of the drive-end slider seat plate 101 facing the driven assembly 200. When the conveyor belt in the pulley mechanism moves, the drive assembly 100 can move forward or backward as a whole.

[0047] The first drive guide pin 103-1, the second drive guide pin 103-2, and the long drive guide pin 104 (which serves as the third drive guide pin) are all horizontally aligned. The first drive guide pin 103-1, the second drive guide pin 103-2, and the long drive guide pin 104 are fixed between the right side of the belt fastener 105 and the left side of the drive end slider seat plate 101. These three pins are distributed along the front-to-back direction, with the second drive guide pin 103-2 located between the first drive guide pin 103-1 and the long drive guide pin 104. The horizontal plane containing the central axis of the second drive guide pin 103-2 is higher than the horizontal plane containing the central axes of the first drive guide pin 103-1 and the long drive guide pin 104, while the horizontal planes containing the central axes of the first drive guide pin 103-1 and the long drive guide pin 104 are the same. The belt fastener 105 and the active end slider seat plate 101 are fixedly connected as a whole by the first active guide pin 103-1, the second active guide pin 103-2, and the long active guide pin 104.

[0048] The first drive guide wheel 102-1 is rotatably mounted on the first drive guide wheel pin 103-1 through the central wheel hole. The second drive guide wheel 102-2 is rotatably mounted on the second drive guide wheel pin 103-2 through the central wheel hole. The third drive guide wheel 102-3 is rotatably mounted on the long drive guide wheel pin 104 through the central wheel hole. Each drive guide wheel and its corresponding drive guide wheel pin are in a clearance fit to ensure that each drive guide wheel can rotate freely on its corresponding drive guide wheel pin. Since the horizontal plane containing the central axis of the second drive guide wheel pin 103-2 is higher than the horizontal plane containing the central axes of the first drive guide wheel pin 103-1 and the long drive guide wheel pin 104, the center position of the second drive guide wheel 102-2 is vertically offset from the center positions of the first drive guide wheel 102-1 and the third drive guide wheel 102-3.

[0049] Located between the left and right sides of the conveyor belt and corresponding to the position of the active component 100, the profile bracket 1 has an upper active guide wheel rail 2-1 fixed on its upper side and a lower active guide wheel rail 2-2 fixed on its lower side. Both the upper and lower active guide wheel rails 2-1 and 2-2 extend horizontally along the conveying direction of the conveyor belt 12. The second active guide wheel 102-2 is rotatably mounted on the upper active guide wheel rail 2-1, while the first and third active guide wheels 102-1 and 102-3 are rotatably mounted on the lower active guide wheel rail 2-2.

[0050] The right end of the long active guide pin 104, which serves as the third active guide pin, passes through the active end slider seat plate 101 to the right and extends beyond the right side of the active end slider seat plate 101 facing the driven component 200. One end of the push rod 13 is coaxially rotatably connected to the protruding end of the long active guide pin 104 through a hole. Thus, the push rod 13 can rotate between the right side of the active end slider seat plate 101 and the left side of the driven component 200, and the other end of the push rod 13 can rotate downward to make the push rod 13 lie down, and the other end of the push rod 13 can rotate upward to be in an upright state and pass through the sliding hole on the upper side of the profile bracket 1.

[0051] In this embodiment, as Figure 9 As shown, the driven assembly 200 includes a driven end slider seat plate 201, a stop block 205, a first driven guide pin 203-1, a long driven guide pin 204 serving as a second driven guide pin, a third driven guide pin 203-2, a first driven guide wheel 202-1, a second driven guide wheel 202-2, a third driven guide wheel 202-3, and a support rod 14.

[0052] The driven end slider base plate 201 and the stop block 205 are arranged side by side on the left and right. The right side of the stop block 205 faces the inner side of the right side of the conveyor belt 12, and there is a gap between the right side of the stop block 205 and the inner side of the right side of the conveyor belt 12. In addition, the front and rear ends of the stop block 205 are tilted to prevent collision and interference between the stop block 205 and the right side of the conveyor belt 12 during operation. The left side of the stop block 205 is opposite to the right side of the driven end slider base plate 201, and the left side of the driven end slider base plate 201 is opposite to the right side of the driving component 100. That is, the left side of the driven end slider base plate 201 is opposite to the right side of the driving end slider base plate 101.

[0053] The driven end slider base plate 201 has an L-shaped portion formed by cutting off a portion from its upper front end, and a groove is provided on the upper side of the horizontal section of the L-shaped portion at the front end, thereby forming a front pull block 208; the driven end slider base plate 201 has an L-shaped portion formed by cutting off a portion from its upper rear end, and a groove is provided on the upper side of the horizontal section of the L-shaped portion at the rear end, thereby forming a rear pull block 207. Furthermore, the front one-way stop fork 108 of the driving component 100 extends forward beyond the front pull block 208 of the driven component 200, and the rear one-way stop fork 107 of the driving component 100 extends backward beyond the rear pull block 207 of the driven component 200. A second permanent magnet 206 is fixed to the driven end slider base plate 201 at a position facing the left rear of the driving component 100, and the magnetically similar surfaces of the second permanent magnet 206 and the first permanent magnet 106 are arranged opposite each other.

[0054] The first driven guide pin 203-1, the long driven guide pin 204 (serving as the second driven guide pin), and the third driven guide pin 203-2 are all horizontally oriented. The first driven guide pin 203-1, the long driven guide pin 204 (serving as the second driven guide pin), and the third driven guide pin 203-2 are respectively fixed between the right side of the driven end slider seat plate 201 and the left side of the stop block 205. The first driven guide pin 203-1, the long driven guide pin 204 (serving as the second driven guide pin), and the third driven guide pin 203-2 are distributed along the front-to-back direction, with the long driven guide pin 204 located between the first driven guide pin 203-1 and the third driven guide pin 203-2. The horizontal plane containing the central axis of the long driven guide pin 204 is higher than the horizontal plane containing the central axes of the first driven guide pin 203-1 and the third driven guide pin 203-2, while the horizontal planes containing the central axes of the first driven guide pin 203-1 and the third driven guide pin 203-2 are the same. The first driven guide pin 203-1, the long driven guide pin 204, and the third driven guide pin 203-2 securely connect the stop block 205 and the driven end slider seat plate 201.

[0055] The first driven guide wheel 202-1 is rotatably mounted on the first driven guide wheel pin 203-1 through the central wheel hole. The second driven guide wheel 202-2 is rotatably mounted on the long driven guide wheel pin 204, which serves as the second driven guide wheel pin, through the central wheel hole. The third driven guide wheel 202-3 is rotatably mounted on the third driven guide wheel pin 203-2 through the central wheel hole. Each driven guide wheel and its corresponding driven guide wheel pin are in a clearance fit to ensure that each driven guide wheel can rotate freely on its corresponding driven guide wheel pin. Since the horizontal plane containing the central axis of the long driven guide wheel pin 204 is higher than the horizontal plane containing the central axes of the first and third driven guide wheel pins 203-1 and 203-2, the center position of the second driven guide wheel 202-2, located in the middle, is vertically offset from the center positions of the first and third driven guide wheels 202-1 and 202-3.

[0056] Located between the left and right sides of the conveyor belt and corresponding to the position of the driven assembly 200, the profile bracket 1 has an upper driven guide rail 2-3 fixed on its upper side and a lower driven guide rail 2-4 fixed on its lower side. Both the upper and lower driven guide rails 2-3 and 2-4 extend horizontally along the conveying direction of the conveyor belt 12. The second driven guide wheel 202-2 is rotatably mounted on the upper driven guide rail 2-3, while the first and third driven guide wheels 202-1 and 202-3 are rotatably mounted on the lower driven guide rail 2-4.

[0057] The left end of the long driven guide pin 204, which serves as the second driven guide pin, passes through the driven end slider seat plate 201 to the left and extends beyond the left side of the driven end slider seat plate 201 facing the driving component 100. One end of the support rod 14 is coaxially rotatably connected to the protruding end of the long driven guide pin 204 through a hole, and the other end of the support rod 14 is rotatably connected to the rod body of the feed lever 13 through a horizontally oriented shaft. Thus, the support rod 14 can rotate between the left side of the driven end slider seat plate 201 and the right side of the driving component 100 (i.e., the right side of the driving end slider seat plate 101). When the conveyor belt in the pulley mechanism moves, it causes the driving component 100 to move forward or backward as a whole. In turn, the driving component 100 can drive the driven component 200 to move through the linkage mechanism composed of the feed lever 13 and the support rod 14.

[0058] In this embodiment, in the initial state of the feeding assembly, the first active guide pin 103-1, the second active guide pin 103-2, and the long active guide pin 104 (which serves as the third active guide pin) in the active assembly 100 correspond one-to-one with the center positions of the first driven guide pin 203-1, the long driven guide pin 204 (which serves as the second driven guide pin), and the third driven guide pin 203-2 in the driven assembly 200. Therefore, in the initial state of the feeding assembly in this embodiment, the rotating connection position of the feeding rod 13 of the active assembly 100 on the right side of the active assembly 100 towards the driven assembly 200, i.e., on the right side of the active end slider seat plate 101, is offset from the rotating connection position of the support rod 14 on the left side of the driven assembly 200 towards the active assembly 100, i.e., on the left side of the driven end slider seat plate 201. Furthermore, in the initial state of the feeding assembly in this embodiment, both the feeding rod 13 and the support rod 14 are in a folded state. When the feeding rod 13 rotates to the upright state, it can drive the support rod 14 to rotate in an inclined posture.

[0059] In this embodiment, there are two sets of reversing components: a front reversing component 400 and a rear reversing component 300. The front reversing component 400 is installed at the front of the lower side of the profile bracket 1, and the rear reversing component 300 is installed at the rear of the lower side of the profile bracket 1. The front reversing component 400 and the rear reversing component 300 have identical structures and are mirror images of each other. This embodiment uses the rear reversing component 300 as an example to describe the structure of the reversing components.

[0060] like Figure 10a , Figure 10b , Figure 10c , Figure 10dAs shown, the rear reversing assembly 300 includes a shaft seat 301, which is fixed in a square slot at the rear of the lower side of the profile bracket 1. Two side plates are fixed to the shaft seat 301, symmetrically arranged, and extend upwards to the rear of the left and right sides of the conveyor belt 12. Shaft bearings 303 are coaxially mounted on each side plate through horizontally axial through holes, with the left and right side bearings 303 being coaxial. A cam shaft 302 is located between the two side plates, with its axis horizontally oriented. The cam shaft 302 is positioned above the shaft seat 301 and rotatably mounted on the shaft bearings 303 of the two side plates. The left and right ends of the cam shaft 302 pass through the corresponding side bearings 303 to form protruding ends. The cam shaft 302 has a cam structure that rotates integrally with the cam shaft 302.

[0061] A spring 306 is provided between the axial protruding end of the cam shaft 302 of the rear reversing assembly 300 and the corresponding position of the shaft seat 301. One end of the spring 306 is fixedly connected to the corresponding axial end of the cam shaft 302 by a first spring pin 304, and the other end of the spring 306 is fixedly connected to the corresponding position on the shaft seat 301 by a first spring pin 305. When the cam shaft 302 is stationary, the spring 306 is vertical. When the cam shaft 302 rotates, the spring 306 is stretched and deformed. When the cam shaft 302 is stationary, the cam structure is in a natural drooping state.

[0062] A motion detection switch is provided on the shaft seat 301 of the rear reversing assembly 300, located behind the two side plates. The motion detection switch is a slotted photoelectric switch 307.

[0063] In the rear reversing assembly 300, the space between the cam shaft 302 segment and the shaft seat 301 between the two side plates, and the slot of the slotted photoelectric switch 307, are all located on the moving path of the material feeding assembly as it moves backward. The cam structure on the cam shaft 302 works in conjunction with the rear pull block 207 of the driven component 200 and the rear one-way stop fork 107 of the driving component in the material feeding assembly. The slotted photoelectric switch 307 works in conjunction with the rear one-way stop fork 107 of the driving component 100 in the material feeding assembly.

[0064] The front reversing assembly 400 and the rear reversing assembly 300 have the same structure and are mirror images of each other; that is, the slotted photoelectric switch of the front reversing assembly is located in front of the two side plates. Similarly, in the front reversing assembly 400, the space between the cam shaft segment and the shaft seat between the two side plates, and the slot of the slotted photoelectric switch, are all located on the forward movement path of the feeding assembly. Furthermore, the cam structure on the cam shaft in the front reversing assembly 400 is used to work in conjunction with the front pull block 208 of the driven assembly 200 and the rear one-way stop fork 108 of the driving assembly in the feeding assembly, and the slotted photoelectric switch is used to work in conjunction with the front one-way stop fork 108 of the driving assembly 100 in the feeding assembly.

[0065] The working process of this embodiment is as follows: (1) In the initial state, the feeding rod 13 and the support rod 14 are both in the inverted state. At this time, the output shaft of the servo motor and the reducer 4 rotates clockwise, and drives the active component 100 in the feeding assembly to move backward through the pulley mechanism. The active component drags the driven component 200 to move backward together through the feeding rod 13 and the support rod 14 in the inverted state.

[0066] (2) When the active component 100 and the driven component 200 move backward as a whole until the rear one-way fork 107 of the active component 100 passes behind the cam shaft 302 in the reversing component 300 and the rear pull block 207 in the driven component 200 passes behind the cam shaft 302 in the reversing component 300, the cam structure on the cam shaft 302 engages in the groove of the rear pull block 207. Thus, the driven component 200 drives the cam shaft 302 to rotate via the cam structure. Due to the tension of the spring 306, the cam structure of the cam shaft 302 remains in contact with the groove of the rear pull block 207. Simultaneously, the cam structure of the cam shaft 302 presses against the rear one-way fork 107 of the active component 100.

[0067] Furthermore, since the rear one-way fork 107 of the active component 100 extends rearward beyond the rear pull block 207 of the driven component 200, the rear one-way fork 107 of the active component 100 enters the slotted photoelectric switch 307 of the rear reversing component 300, causing the slotted photoelectric switch 307 to generate a signal.

[0068] (3) When the slotted photoelectric switch 307 generates a signal, the external controller receives the signal and outputs a steering control signal to the servo motor. At this time, the output shaft of the servo motor and the reducer 4 rotates in the opposite direction and drives the active wheel group 100 to move forward in the opposite direction through the pulley mechanism.

[0069] At this time, because the rear one-way fork 107 in the driving assembly 100 interacts with the cam structure of the cam shaft 302 in the rear reversing assembly 300, the rear one-way fork 107 of the driving assembly 100 prevents the cam structure and cam shaft 302 in the rear reversing assembly 300 from rotating in the opposite direction. Furthermore, because the cam structure of the cam shaft 302 in the rear reversing assembly 300 is engaged in the groove of the rear pull block 207 of the driven assembly 200, and because the cam shaft 302 and cam structure are blocked by the rear one-way fork 107 and cannot rotate, the rear pull block 207 is prevented from moving forward in the opposite direction with the driving wheel assembly 100. That is, at this time, the driven assembly 200 cannot move forward in the opposite direction, while the driving assembly 100 can move forward independently.

[0070] (4) When the active component 100 continues to move forward until the rear one-way fork 107 of the active component 100 passes the cam structure of the cam shaft 302 in the rear reversing component 300, the push rod 13 of the active component 100 is in or about to be in the vertical state, and due to the structural obstruction between the push rod 13 and the support rod 14 of the driven component 200, the push rod 13 will not swing excessively at the corresponding angle.

[0071] When the driving component 100 moves forward until the rear one-way fork 107 is completely disengaged from the cam structure of the cam shaft 302 in the rear reversing component 300, the rear fork 107 of the driving component 100 no longer prevents the cam shaft 302 and cam structure in the rear reversing component 300 from rotating in the opposite direction. Therefore, the rear pull block 207 of the driven component 200 can move forward in the opposite direction. At this time, the driving component 100 drives the driven component 200 to move forward in the opposite direction through the feed lever 13 and the support rod 14, which are already in or about to be in the upright position, until the groove of the rear pull block 207 of the driven component 200 is completely disengaged from the cam structure of the cam shaft 302 in the rear reversing component 300.

[0072] During the process of the material guide bar 13 changing from a folded to an upright state through the interaction of the rear one-way stop fork 107 of the active component 100, the rear pull block 207 of the driven component 200, and the rear reversing component 300, the first permanent magnet 106 embedded on the active component 100 and the second permanent magnet 206 embedded on the driven component 200 are constantly in a repulsive relationship. This allows the material guide bar 13 to quickly switch between the folded and upright states, and the material guide bar 13 will not be in an unpositioned state. In addition, during the movement of the material guide bar, it is not easy for external interference to cause the material guide bar 13 to erroneously fold down or stand upright.

[0073] Finally, the feeding rod 13 is converted to an upright state and passes through the sliding opening on the side of the profile bracket 1. As the active component 100 and the driven component 200 in the feeding assembly move forward as a whole, the upright feeding rod 13 also moves forward, thereby realizing forward unidirectional feeding.

[0074] (5) The active component 100 drags the driven component 200 to continue moving forward. The material pusher 13 drives the material to move with the material pusher until it reaches the front reversing component 400 at the front of the profile bracket 1. Since the structure of the front reversing component 400 is a mirror structure of the rear reversing component 300, its working principle and steps are similar to the above steps (2)-(4). The material pusher 13 is brought back to the lying state through the front reversing component 400.

[0075] (6) Repeat steps (1)-(5) to achieve cyclic unidirectional material feeding.

[0076] This utility model provides a unidirectional material feeding mechanism for narrow spaces, solving the problem of achieving unidirectional material feeding in narrow and compact spaces. The main structure support (guide rail support 1) is made of profile or extruded aluminum profile, which has good structural rigidity, high straightness of guide rail installation, and low cost. The two sets of three roller structures minimize or even eliminate the gap between the rollers and the guide rail, resulting in higher operational stability and independence from gravity, enabling unidirectional material feeding at any angle. Two permanent magnets are fixed to the driving wheel set 100 and the driven wheel set 200 respectively. Utilizing the principle of like poles repulsion, the feeding rod can be in either a folded or upright position, reducing the likelihood of incorrect folding or uprighting during operation and ensuring high reliability of unidirectional operation. The front end reversing component 300 and the rear end reversing component 400, arranged at the front and rear, use a spring and camshaft structure to achieve rapid reversing, ensuring structural reliability and simplifying the control process by using the same driving power. This mechanism is compact, reliable in operation, and applicable to various unidirectional material feeding scenarios.

[0077] The preferred embodiments of this utility model have been described in detail above with reference to the accompanying drawings. These embodiments are merely descriptions of preferred embodiments and are not intended to limit the concept and scope of this utility model. The various specific technical features described in the above embodiments can be combined in any suitable manner without contradiction. Such combinations, as long as they do not violate the spirit of this utility model, should also be considered as part of this disclosure. To avoid unnecessary repetition, this utility model will not further describe all possible combinations.

[0078] This utility model is not limited to the specific details of the above embodiments. Within the scope of the technical concept of this utility model and without departing from the design idea of ​​this utility model, all modifications and improvements made by those skilled in the art to the technical solution of this utility model should fall within the protection scope of this utility model. The technical content for which protection is sought in this utility model has been fully recorded in the claims.

Claims

1. A unidirectional feeding mechanism for a narrow space, characterized in that, include: The profile bracket (1) is hollow inside, and a sliding opening is provided on one side of the profile bracket (1) parallel to its own long side. The sliding opening is parallel to the long side of the profile bracket (1). The pulley mechanism has its transmission belt wholly or partially located inside the profile bracket (1). The transmission direction of the pulley mechanism is parallel to the long side of the profile bracket (1), and the projection of the sliding end of the profile bracket (1) into the interior of the profile bracket (1) is located between the two belt bodies of the transmission belt. The material feeding assembly includes an active component (100) and a driven component (200); the material feeding assembly is movably installed inside the profile bracket (1) and located between the two sides of the conveyor belt in the pulley mechanism; the active component (100) and the driven component (200) in the material feeding assembly are arranged side by side between the two sides of the conveyor belt. The active component (100) is located on the side of the conveyor belt opposite to the driven component (200), which is in close contact with the inner side of the belt body on one side. There is a gap between the side of the driven component (200) opposite to the active component (100) and the other side of the conveyor belt. The active component (100) has one-way forks at both ends in the moving direction, and the driven component (200) has pull blocks at both ends in the moving direction. The one-way forks at each end of the active component (100) exceed the pull blocks at the corresponding ends of the driven component (200) in the same moving direction. The active component (100) includes a feeding rod (13), one end of which is rotatably connected to the side of the active component (100) facing the driven component (200). The rotation center line of one end of the feeding rod (13) is perpendicular to the conveyor belt. The conveying direction of the belt, and the material-pulling rod (13) can be rotated to the other end protruding from the sliding opening of the profile bracket (1); the driven component (200) includes a support rod (14), one end of which is rotatably connected to the side of the driven component (200) facing the driving component (100), the rotation center line of one end of the support rod (14) is perpendicular to the conveying direction of the conveying belt, and the other end of the support rod (14) is rotatably connected to the rod body of the material-pulling rod (13), the rotation center line of the other end of the support rod (14) is perpendicular to the conveying direction of the conveying belt; and, the rotation connection position of one end of the material-pulling rod (13) on the side of the driving component (100) facing the driven component (200) is offset from the rotation connection position of one end of the support rod (14) on the side of the driven component (200) facing the driving component (100); It also includes two sets of reversing components with the same structure. The two sets of reversing components are respectively installed on the other side of the profile bracket (1) opposite to the side of the profile bracket (1) where the slide is located, and the two sets of reversing components are respectively located on the moving paths of the material feeding component in different moving directions. Each reversing assembly includes a pivot seat fixed to the other side of the profile bracket (1). A cam pivot is rotatably mounted on top of each pivot seat. Each cam pivot is located inside the profile bracket (1) and between the two belt bodies of the conveyor belt. The axial direction of each cam pivot is parallel to the transmission direction of the conveyor belt. A spring is connected between one end of the axial direction of each cam pivot and the corresponding pivot seat. Each cam pivot has a cam structure, which is used to work in cooperation with the pull block at the corresponding end of the driven assembly (200) and the one-way stop fork at the corresponding end of the active assembly (100). A motion detection switch is also installed on each pivot seat. Each motion detection switch is located inside the profile bracket (1) and between the two belt bodies of the conveyor belt. Each motion detection switch is used to work in cooperation with the one-way stop fork at the corresponding end of the active assembly (100).

2. The narrow-space unidirectional feeding mechanism according to claim 1, characterized in that, The profile bracket (1) has two openings at its long side, and one of the openings is covered by a rear sealing plate (6). In the pulley mechanism, the drive pulley (5) is fixed, and the driven pulley (10) and driven wheel shaft (9) are located inside the profile bracket (1) and close to the rear end plate (6). The driven wheel shaft (9) and the rear end plate (6) are connected by adjusting bolts. The distance between the rear end plate (6) and the driven wheel shaft (9) can be adjusted by adjusting bolts, thereby adjusting the tension of the transmission belt between the drive pulley (5) and the driven pulley (10).

3. The narrow-space unidirectional feeding mechanism according to claim 1, characterized in that, The active component (100) has a first permanent magnet (106) fixed on the side facing the driven component (200), and the driven component (200) has a second permanent magnet (206) fixed on the side facing the active component (100). The magnetic surfaces of the first permanent magnet (106) and the second permanent magnet (206) are arranged opposite each other.

4. A narrow-space unidirectional feeding mechanism according to claim 1 or 3, characterized in that, The active component (100) also includes an active end slider seat plate (101) and a belt fastener (105). The active end slider seat plate (101) and the belt fastener (105) are arranged opposite to each other and connected as a whole. The two ends of the active end slider seat plate (101) in the moving direction are respectively set as the one-way stop forks. Among them, one side of the belt fixing member (105) is closely attached to the inner side of the conveyor belt, the side of the active end slider seat plate (101) facing away from the belt fixing member (105) is facing the driven component (200), and one end of the feeding rod (13) is rotatably connected to the side of the active end slider seat plate (101) facing the driven component (200).

5. A narrow-space unidirectional feeding mechanism according to claim 4, characterized in that, In the active component (100), a number of active guide pins are fixedly connected between the active end slider seat plate (101) and the belt fastener (105), and the active end slider seat plate (101) and the belt fastener (105) are connected as a whole through the number of active guide pins; The axial direction of each active guide pin is perpendicular to the transmission direction of the conveyor belt. One of the active guide pins is a long active guide pin (104). One end of the long active guide pin (104) passes through the active end slider seat plate (101) and extends to the side of the active end slider seat plate (101) facing the driven component (200). One end of the feed rod (13) is rotatably connected to the protruding end of the long active guide pin (104) through a hole.

6. A narrow-space unidirectional feeding mechanism according to claim 5, characterized in that, Each active guide pin is rotatably mounted with an active guide wheel. The active guide wheel rail is also fixed inside the profile bracket (1) at the position between the two belt bodies of the conveyor belt. The active guide wheel rail extends along the transmission direction of the conveyor belt, and the active guide wheel is rotatably mounted on the active guide wheel rail.

7. A narrow-space unidirectional feeding mechanism according to claim 1 or 3, characterized in that, The driven component (200) further includes a driven end slider seat plate (201) and a stop block (205). The driven end slider seat plate (201) and the stop block (205) are arranged opposite to each other and connected as a whole. The two ends of the driven end slider seat plate (201) in the moving direction are respectively set as the pulling blocks. There is a gap between one side of the stop block (205) and the other side of the conveyor belt. The side of the driven end slider seat plate (201) facing away from the stop block (205) faces the active component (100). One end of the support rod (14) is rotatably connected to the side of the driven end slider seat plate (201) facing the active component (100).

8. A narrow-space unidirectional feeding mechanism according to claim 7, characterized in that, In the driven assembly (200), a number of driven guide pins are fixedly connected between the driven end slider seat plate (201) and the stop block (205), and the driven end slider seat plate (201) and the stop block (205) are connected as a whole through the number of driven guide pins; The axial direction of each driven guide pin is perpendicular to the transmission direction of the conveyor belt. One of the driven guide pins is a long driven guide pin (204). One end of the long driven guide pin (204) passes through the driven end slider seat plate (201) and extends to the side of the driven end slider seat plate (201) facing the driving component (100). One end of the support rod (14) is rotatably connected to the protruding end of the long driven guide pin (204) through a hole.

9. A narrow-space unidirectional feeding mechanism according to claim 8, characterized in that, Each driven guide pin is rotatably mounted with a driven guide wheel. Inside the profile bracket (1), between the two belt bodies of the conveyor belt, a driven guide wheel rail is also fixed. The driven guide wheel rail extends along the transmission direction of the conveyor belt, and the driven guide wheel is rotatably mounted on the driven guide wheel rail.

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