One-way electric drive stopper

Abstract

The utility model discloses a one-way electric drive stopper, and relates to the technical field of stoppers. The device comprises a rack and an electric drive mechanism, the rack comprises a frame A and a frame B, hollow spaces are formed in the frame A and the frame B and are communicated together to form a space C, and the electric drive mechanism is installed on the frame A; the connecting rod mechanism comprises first connecting rods and second connecting rods, the at least one first connecting rod and the at least one second connecting rod intersect to form a herringbone shape, and the at least one second connecting rod is indirectly connected with the pulling seat; and the blocking mechanism comprises a blocking sliding block and a blocking head, and the blocking sliding block is connected with the blocking head. According to the utility model, the hinge pin and the hole in the connecting rod mechanism are connected, and the two connecting rods in the connecting rod mechanism are arranged in a relative proportion, so that the stability of stopping the tray is improved, a complex pneumatic system is replaced, the non-return and stopping functions are integrated, the structure is stable, the noise is low, and the use cost is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of stopper, specifically to one -way electric drive stopper. BACKGROUND

[0002] The stopper used in the market at present generally has two kinds of pneumatic stopper and electric drive stopper, the pneumatic stopper takes pneumatic system as power source, the pneumatic system usually includes complex and expensive original element unit such as air compressor, filter, regardless of whether the pneumatic stopper works, the pneumatic system always keeps working state, therefore, using the pneumatic stopper has higher use cost, and the noise is big in the process of air release.

[0003] The electric drive stopper generally sets up damping piece, and the damping piece can absorb the kinetic energy generated in the process that the tray moves from high speed to instant stop, so as to achieve the purpose of stable stop of the tray, reduce the impact on the tray and materials, and reduce the noise.

[0004] Chinese utility model patent CN109552866B discloses a kind of electromagnet cam one-way material stopper, by using electromagnet, electromagnet is also used electric energy as power source, replace complex pneumatic system, wherein, high position A in cam mechanism, low position B and swing block structure simplify the overall composition of stopper, in-place hook increases the in-place retention of stopper, and integrates check and material blocking function, simplifies installation time efficiency.

[0005] But the disadvantages of this utility model patent are: the dead point of the high pair of the three contacts of the high position A of cam mechanism and the pin shaft of blocking block mechanism is not stable connection mode, just touch together, when blocking, the perpendicularity of the vertical direction of swing block mechanism is very high, if swing block mechanism is slightly biased, then the position of dead point will be moved forward or backward, it is not enough to provide support force to the blocking mechanism above, therefore, one-way electric drive stopper is proposed to solve the above problems. UTILITY MODEL CONTENTS

[0006] The utility model aims at: for solving the dead point of the high pair of the three contacts of the high position A of cam mechanism and the pin shaft of blocking block mechanism in Chinese utility model patent CN109552866B a kind of electromagnet cam one-way material stopper is not stable enough, when blocking, swing block mechanism is slightly biased, it is not enough to provide support force to the blocking mechanism above, and using pneumatic stopper, it has higher use cost, and the noise is big in the process of air release, the utility model provides a kind of one-way electric drive stopper.

[0007] The utility model discloses the following technical solutions in order to realize the above-mentioned purposes:

[0008] The application discloses a one-way electric drive blocking stopper, which comprises a rack and an electric drive mechanism, the rack comprises an A frame and a B frame, the A frame and the B frame are internally hollowed and are connected to form a C space, and the electric drive mechanism is installed on the A frame; a connecting rod mechanism and a pulling seat, the connecting rod mechanism comprises first connecting rods and second connecting rods, at least one first connecting rod and at least one second connecting rod intersect to form a herringbone, and at least one second connecting rod is indirectly connected with the pulling seat; and a blocking mechanism, the blocking mechanism comprises a blocking slider and a blocking head, the blocking slider is connected with the blocking head, the blocking slider drives the blocking head to slide in the direction of an X axis, and the blocking mechanism, the connecting rod mechanism and the pulling seat are all installed in the C space.

[0009] Further, the at least one first connecting rod and the at least one second connecting rod are connected through a second hinge pin, and the length ratio between the first connecting rod and the second connecting rod is (2.5-3):(3.5-4).

[0010] Further, the connecting rod mechanism further comprises a first hinge pin, a plurality of second hinge pins and a third hinge pin, the at least one first connecting rod is connected with the A frame through the first hinge pin, the at least one first connecting rod and the at least one second connecting rod are connected through the second hinge pin, the at least one second connecting rod is connected with the pulling seat through the third hinge pin, one end of the at least one first connecting rod rotates around the first hinge pin, the other end rotates around one of the second hinge pins, one end of the at least one second connecting rod rotates around the third hinge pin, and the other end rotates around one of the second hinge pins.

[0011] Further, the blocking mechanism further comprises a sliding pin shaft and a translation seat, the sliding pin shaft and the translation seat are fixedly connected, the pulling seat is provided with a plurality of through holes and a plurality of translation grooves, the sliding pin shaft passes through the at least one through hole and slides in the at least one through hole in the direction of the X axis, and the translation seat slides in the at least one translation groove, and a damper is installed on the translation seat.

[0012] Further, the application further comprises a check mechanism, the check mechanism comprises a check block, a torsional spring and a check hinge pin, and the check block is installed on the B frame through the check hinge pin.

[0013] Further, the application further comprises a locking mechanism, the locking mechanism comprises a locking hook and a first pin, the locking hook is connected to the pulling seat, the first pin is connected to the translation seat, one end of the locking hook is provided with a notch, and the inner wall of the notch is abutted against the surface of the first pin.

[0014] Further, the locking mechanism further comprises a locking hinge pin and a locking block pin, the locking hook is installed on the pulling seat through the locking hinge pin, the locking hook rotates around the locking hinge pin as the center, the locking block pin is installed on the B frame, and the locking block pin blocks the locking hook from continuing to abut against the first pin under the action of gravity.

[0015] Further, the locking mechanism further comprises a second pin and a magnetic switch, the magnetic switch is installed on the B frame, the second pin is connected to the translation seat, and the magnetic switch senses that the position of the second pin is in place when the blocking slider slides to abut against the inner wall of the pulling seat.

[0016] Further, the A frame is provided with a release unlocking rod, the release unlocking rod abuts against the surface of the first connecting rod, and the release unlocking rod translates in the direction of the Y axis.

[0017] Further, one side of the A frame is provided with a base, the electric drive mechanism is connected with a push rod, one end of the push rod away from the electric drive mechanism is connected with a connecting cross rod, and the connecting cross rod is installed on the first connecting rod.

[0018] The utility model discloses the beneficial effect is as follows: the utility model discloses the hinge pin and the hole connection in connecting rod mechanism, and the relative proportion of two connecting rods in connecting rod mechanism is set, improves the stability when stopping the tray, replaces the complex pneumatic system, and the check and stop function are integrated, and the structure is stable, and the noise is little, and the use cost is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is the three-dimensional structure schematic diagram of the utility model;

[0020] Figure 2 It is the structure schematic diagram of the blocking slider in the utility model; Figure 1

[0021] Figure 3 It is the structure schematic diagram of the check block in the utility model; Figure 1

[0022] Figure 4 It is the front view schematic diagram of the inside of the utility model;

[0023] Figure 5 It is the sectional structure schematic diagram of the utility model;

[0024] Figure 6 It is the standby state schematic diagram of the utility model;

[0025] Figure 7 It is the three-dimensional structure schematic diagram of another embodiment of the utility model;

[0026] Figure 8 ​​It is another embodiment of the utility model's plan view structure schematic diagram.

[0027] Reference signs: 1, rack; 2, electric drive mechanism; 21, push rod; 22, connecting cross bar; 3, connecting rod mechanism; 31, first connecting rod; 32, second connecting rod; 33, first hinge pin; 34, second hinge pin; 35, third hinge pin; 4, pulling seat; 5, blocking mechanism; 51, blocking slider; 52, blocking head; 53, sliding pin shaft; 54, translation seat; 6, check mechanism; 61, check block; 62, check hinge pin; 63, torsional spring; 7, locking mechanism; 71, locking hook; 72, first pin; 73, second pin; 74, locking hinge pin; 75, locking stop pin; 8, release unlocking rod; 9, damper; 101, base. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be described clearly and completely below in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. The components of the embodiments of the utility model described and shown in the drawings can be arranged and designed in various different configurations.

[0029] Therefore, the following detailed description of the embodiments of the utility model provided in the drawings is not intended to limit the scope of the claimed utility model, but only represents selected embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the utility model.

[0030] It should be noted that: similar signs and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings. In addition, the terms "first", "second" and the like are only used to distinguish description, and cannot be understood as indicating or implying relative importance.

[0031] In the description of the embodiments of the utility model, it should be noted that the orientation or position relationship indicated by the terms "inner", "outer", "upper" and the like is based on the orientation or position relationship shown in the drawings, or the orientation or position relationship commonly placed when the utility model product is used, which is only for the convenience of describing the utility model and simplifying the description, and cannot be understood as indicating or implying that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, therefore, it cannot be understood as a limitation on the utility model.

[0032] The application discloses a one-way electric drive blocking stopper, which comprises a rack 1 and an electric drive mechanism 2, the rack 1 comprises an A frame and a B frame, the A frame and the B frame are internally hollowed and are communicated to form a C space, and the electric drive mechanism 2 is installed on the A frame; a connecting rod mechanism 3 and a pulling seat 4, the connecting rod mechanism 3 comprises a first connecting rod 31 and a second connecting rod 32, at least one first connecting rod 31 and at least one second connecting rod 32 are intersected to form a herringbone, and at least one second connecting rod 32 is indirectly connected with the pulling seat 4; a blocking mechanism 5, the blocking mechanism 5 comprises a blocking slider 51 and a blocking head 52, the blocking slider 51 is connected with the blocking head 52, the blocking slider 51 drives the blocking head 52 to slide in the direction of an X axis, and the blocking mechanism 5, the connecting rod mechanism 3 and the pulling seat 4 are all installed in the C space.

[0033] As shown in Figure 2 , at least one first connecting rod 31 and at least one second connecting rod 32 are connected through a second hinge pin 34, and the length ratio between the first connecting rod 31 and the second connecting rod 32 is (2.5-3):(3.5-4).

[0034] As shown in Figure 2 , the connecting rod mechanism 3 further comprises a first hinge pin 33, a plurality of second hinge pins 34 and a third hinge pin 35, at least one first connecting rod 31 is connected with the A frame through the first hinge pin 33, at least one first connecting rod 31 and at least one second connecting rod 32 are connected through the second hinge pin 34, at least one second connecting rod 32 is connected with the pulling seat 4 through the third hinge pin 35, one end of at least one first connecting rod 31 rotates around the first hinge pin 33, the other end rotates around one of the second hinge pins 34, one end of at least one second connecting rod 32 rotates around the third hinge pin 35, and the other end rotates around one of the second hinge pins 34.

[0035] As shown in Figure 1 , the blocking mechanism 5 further comprises a sliding pin shaft 53 and a translation seat 54, the sliding pin shaft 53 and the translation seat 54 are fixedly connected, the pulling seat 4 is provided with a plurality of through holes and a plurality of translation grooves, the sliding pin shaft 53 passes through at least one through hole and slides in the at least one through hole in the direction of the X axis, and the translation seat 54 slides in at least one translation groove, a damper 9 is installed on the translation seat 54, the blocking head 52 is impacted to drive the blocking slider 51, the sliding pin shaft 53 and the translation seat 54 to slide, and at the same time, the damper 9 is compressed to absorb kinetic energy generated in the process that a tray moves to stop, when the stroke of the damper 9 approaches full stroke, the kinetic energy of the tray is just completely absorbed by the damper 9, so that the tray stops at a designated accurate position.

[0036] As shown in Figure 3As shown, it also includes a check mechanism 6, which includes a check block 61, a torsion spring 63 and a check hinge pin 62. The check block 61 is installed on the B frame through the check hinge pin 62. When the check block 61 is not forced downward, the elastic force of the torsion spring 63 makes one end of the check block 61 tilt up to block the reverse movement of the tray. The reason for the reverse movement is that the force of the damper 9 rebounds when the damping force of the damper 9 is not properly adjusted, or the damper 9 rebounds after being used for a long time, or the damper 9 is tired or fails, which is prone to rebound.

[0037] As shown, Figure 4 As shown, it also includes a locking mechanism 7, which includes a locking hook 71 and a first pin 72. The locking hook 71 is connected to the pulling seat 4, and the first pin 72 is connected to the translation seat 54. One end of the locking hook 71 is provided with a notch, and the inner wall of the notch is abutted against the surface of the first pin 72. The locking hook 71 is J-shaped or I-shaped. When the pulling seat 4 is hit into place by the tray, it is stopped and released before it is released. The first pin 72 is abutted against the locking hook 71 to stop the pulling seat 4 from automatically returning to its original position. It is applied to the situation where the tray needs to be jacked up.

[0038] As shown, Figure 2 , Figure 4 As shown, the locking mechanism 7 also includes a locking hinge pin 74 and a locking stop pin 75. The locking hook 71 is installed on the pulling seat 4 through the locking hinge pin 74, and the locking hook 71 rotates around the locking hinge pin 74 as the center. The locking stop pin 75 is installed on the B frame, and the locking stop pin 75 blocks the locking hook 71 from continuing to abut against the first pin 72 due to the influence of gravity.

[0039] As shown, Figure 1 , Figure 4 As shown, the locking mechanism 7 also includes a second pin 73 and a magnetic switch, which is not labeled and installed on the B frame. The second pin 73 is connected to the translation seat 54, and the magnetic switch senses the position of the second pin 73 when the blocking block 51 is blocked from sliding against the inner wall of the pulling seat 4.

[0040] As shown, Figure 4 As shown, the A frame is provided with a release unlocking rod 8, which is abutted against the surface of the first connecting rod 31. The release unlocking rod 8 translates in the direction of the Y axis, and the release unlocking rod 8 blocks the first connecting rod 31. When the second connecting rod 32 is pulled to the position after displacement by the second hinge pin 34, it is kept in the position after displacement, so that the blocking head 52 is always in the state of not abutting against the tray. When the roller and the stopper are not powered, it is convenient to move the tray and debug other equipment or stations.

[0041] As shown, Figure 5 , Figure 7As shown, a base 101 is installed on one side of frame A, and the electric drive mechanism 2 is connected to push rod 21. The end of push rod 21 away from the electric drive mechanism 2 is connected to a connecting crossbar 22, which is installed on the first connecting rod 31.

[0042] Example: The entire workflow of this organization, in sequence, can be divided into the following five states:

[0043] 1. Standby state; 2. Stop state; 3. Release state; 4. Reset state; 5. Forced release state.

[0044] The five working states are explained in detail below:

[0045] 1. Standby state: When the stop device is in standby state, such as Figure 6 As shown, at this time, the electric drive mechanism 2 is de-energized and retracts, the first link 31 and the second link 32 of the linkage mechanism 3 are in a vertical state and remain in the same straight line, the pull seat 4 is in a horizontal support position perpendicular to the second link 32, the blocking slider 51 is in a standby retracted state, the check block 61 in the check mechanism 6 is in a free state with one end raised, the locking hook 71 is in a free flat state under the action of gravity, and the piston rod of the damper 9 is in a free extended state.

[0046] 2. Stopping state: When the pallet's impact block strikes the blocking head 52, it is in the stopping state, such as... Figure 2 As shown, at this time, the electric drive mechanism 2 is de-energized and retracts, the first link 31 and the second link 32 of the linkage mechanism 3 are in a vertical state, the pull seat 4 is in a horizontal and perpendicular support position to the second link 32, the blocking slider 51 is in the extended state after impact, and the check mechanism 6 is in a free-lifting state after being pressed down by the tray block to prevent the tray from moving in the opposite direction. When the blocking slider 51 is in the extended state, it drives the first pin 72 and the second pin 73 to move away from the locking hook 71, while the locking hook 71 falls freely under the action of gravity and hooks the first pin 72; in addition, the working... After the stop position is engaged, other actions may occur: when the pallet needs to be lifted in the workstation, the pallet block disengages from the blocking head 52, and the locking hook 71 hooks the first pin 72, so that the blocking slider 51 and the blocking head 52 are locked in this state. Due to the disengagement of the pallet block, it will not rebound back to the standby state under the reaction force of the damper 9 after being compressed. When the pallet needs to be lowered in the workstation, the blocking head 52 is still in the stop position. The blocking head 52 is still in the stop position, leaving space for the pallet block to fall back, avoiding interference that could cause the pallet to tip over. The piston rod of the damper 9 is in the compressed position.

[0047] 3. Release Status: When the pallet needs to be released, it is in the release status, such as... Figure 4 , Figure 5As shown, at this time, the electric drive mechanism 2 is powered to extend the push rod 21, which pushes the connecting crossbar 22, so that the first connecting rod 31 rotates around the first hinge pin 33 by a certain angle, with the angle ranging from 10 to 45 degrees, allowing the first connecting rod 31 and the second connecting rod 32 to form a side-down herringbone shape, and at the same time, the tension is transmitted to the pulling seat 4 through the third hinge pin 35, so that the pulling seat 4 is lowered under the action of the tension, allowing the blocking slider 51 and the blocking head 52 to be lowered, and at the same time, the height of the check mechanism 6 is also lowered, and the highest point of the check block 61 is lower than the lower surface of the tray striker, at this time, the tray striker is released and can continue to move forward.

[0048] 4, Reset state: when the tray striker needs to hit the next cycle, it is in the reset state, as shown in Figure 6 At this time, the electric drive mechanism 2 is powered off; the torsional spring 63 has a retraction force, allowing one end of the check block 61 to be freely raised, the push rod 21 pulls back the connecting crossbar 22, driving the first connecting rod 31 and the second connecting rod 32 to return to the vertical state, and at the same time, the force is transmitted to the pulling seat 4 through the third hinge pin 35, so that the pulling seat 4 returns to the horizontal standby state, in preparation for the next impact cycle.

[0049] At the same time, the locking hook 71 is separated from the first pin 72 under the action of the locking stop pin 75, unlocking the blocking slider 51, the blocking head 52, and the check mechanism 6, and then, the blocking slider 51, the blocking head 52, the sliding pin 53, and the translation seat 54 are automatically retracted to the position in the standby state under the action of the damper 9 after being compressed, and the piston rod of the damper 9 is extended, in preparation for the next impact cycle.

[0050] 5, Forced release state: when the roller and the stopper are not powered, it is convenient to move the tray, debug other equipment or stations, as shown in Figure 4 When the release unlocking rod 8 is not inserted into the side of the first connecting rod 31, it is in a free release state, and when the release unlocking rod 8 is forcibly inserted into the side of the first connecting rod 31 and abuts against the surface of the first connecting rod 31, it stops the first connecting rod 31, the second connecting rod 32, the third hinge pin 35, the pulling seat 4, and the torsional spring 63 from being reset, and is always in a release state, at this time, the tray can flow freely on the roller.

[0051] Another embodiment, as shown in Figure 7 , Figure 8 The stopper in this embodiment is a light load stopper, with a stop weight ranging from 80 kg to 300 kg, while the stop weight of the previous embodiment ranges from 300 kg to 600 kg. The structural parts in this embodiment are basically the same, but the shape of the base 101 is different. The base 101 is butterfly-shaped or H-shaped, and the four corners have fixed holes.

[0052] The basic principle, main characteristics and advantages of the present application are shown and described above. It should be understood by those skilled in the art that the present application is not limited by the above embodiments, and various changes and improvements can be made to the present application without departing from the spirit and scope of the present application. These changes and improvements are all within the scope of the present application. The scope of protection required by the present application is defined by the appended claims and their equivalents.

Claims

1. A unidirectional electric drive stop device, characterized in that: include The frame (1) and the electric drive mechanism (2) are provided. The frame (1) includes a frame A and a frame B. The interior of the frame A and the frame B has a hollow space and they are connected together to form a space C. The electric drive mechanism (2) is installed on the frame A. The linkage mechanism (3) and the pull seat (4) include a first link (31) and a second link (32), at least one first link (31) and at least one second link (32) intersect in a herringbone shape, and at least one second link (32) is indirectly connected to the pull seat (4); The blocking mechanism (5) includes a blocking slider (51) and a blocking head (52). The blocking slider (51) is connected to the blocking head (52). The blocking slider (51) drives the blocking head (52) to slide in the direction of the X-axis. The blocking mechanism (5), the linkage mechanism (3) and the pull seat (4) are all installed in the C space.

2. The unidirectional electric drive stop device according to claim 1, characterized in that, At least one first link (31) and at least one second link (32) are connected by a second hinge pin (34), and the length ratio between the first link (31) and the second link (32) is (2.5-3):(3.5-4).

3. The unidirectional electric drive stop device according to claim 1, characterized in that, The linkage mechanism (3) further includes a first hinge pin (33), a plurality of second hinge pins (34) and a third hinge pin (35). At least one first link (31) is connected to frame A through the first hinge pin (33). At least one first link (31) and at least one second link (32) are connected through the second hinge pins (34). At least one second link (32) is connected to the pull seat (4) through the third hinge pin (35). One end of at least one first link (31) rotates around the first hinge pin (33) and the other end rotates around one of the second hinge pins (34). One end of at least one second link (32) rotates around the third hinge pin (35) and the other end rotates around one of the second hinge pins (34).

4. The unidirectional electric drive stop device according to claim 1, characterized in that, The blocking mechanism (5) further includes a sliding pin (53) and a translation seat (54). The sliding pin (53) and the translation seat (54) are fixedly connected. The pull seat (4) has several through holes and several translation slots. The sliding pin (53) passes through at least one through hole and slides in at least one through hole in the X-axis direction. The translation seat (54) slides in at least one translation slot. A damper (9) is installed on the translation seat (54).

5. The unidirectional electric drive stop device according to claim 1, characterized in that: It also includes a check mechanism (6), which includes a check block (61), a torsion spring (63) and a check hinge pin (62), wherein the check block (61) is mounted on the B frame via the check hinge pin (62).

6. The unidirectional electric drive stop device according to claim 1, characterized in that: It also includes a locking mechanism (7), which includes a locking hook (71) and a first pin (72). The locking hook (71) is connected to the pull seat (4), and the first pin (72) is connected to the translation seat (54). One end of the locking hook (71) is provided with a notch, and the inner wall of the notch abuts against the surface of the first pin (72).

7. The unidirectional electric drive stop device according to claim 6, characterized in that: The locking mechanism (7) further includes a locking hinge pin (74) and a locking stop pin (75). The locking hook (71) is mounted on the pull seat (4) via the locking hinge pin (74). The locking hook (71) rotates around the locking hinge pin (74). The locking stop pin (75) is mounted on the B frame. The locking stop pin (75) prevents the locking hook (71) from continuing to abut against the first pin (72) due to gravity.

8. The unidirectional electric drive stop device according to claim 6, characterized in that: The locking mechanism (7) also includes a second pin (73) and a magnetic switch. The magnetic switch is mounted on the B frame. The second pin (73) is connected to the translation seat (54). When the blocking slider (51) slides to abut against the inner wall of the pull seat (4), its magnetic switch senses that the second pin (73) is in position.

9. The unidirectional electric drive stop device according to claim 1, characterized in that: A release unlocking lever (8) is installed on frame A. The release unlocking lever (8) abuts against the surface of the first connecting rod (31). The release unlocking lever (8) translates in the direction of the Y axis.

10. The unidirectional electric drive stop device according to claim 1, characterized in that: A base (101) is installed on one side of frame A. The electric drive mechanism (2) is connected to push rod (21). The end of push rod (21) away from electric drive mechanism (2) is connected to connecting crossbar (22). The connecting crossbar (22) is installed on first connecting rod (31).

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