Limiting device, control method thereof and transmission equipment

Abstract

The invention discloses a limiting device, a control method thereof and conveying equipment, and relates to the technical field of limiting devices.The limiting device is characterized in that limiting stations are formed on a conveying assembly line, the conveying direction of the conveying assembly line is defined as the first direction, and the limiting device comprises a limiting mechanism, a guiding mechanism and a driving mechanism; the driving mechanism is used for driving the limiting mechanism to do telescopic motion, so that the limiting mechanism has an extending state and a retracting state; a first limiting structure and a second limiting structure of the limiting mechanism are oppositely arranged in a spaced mode in the first direction and are used for being stopped on the two opposite sides of the carrier in the first direction when the limiting mechanism is in an extending state. A third limiting structure of the limiting mechanism and the guide mechanism are oppositely arranged in a spaced mode in the second direction, and the third limiting structure and the guide mechanism are used for being stopped on the two opposite sides of the carrier in the second direction when the limiting mechanism is in the stretching-out state; according to the technical scheme, the limiting stability of the carrier can be improved.

Description

Technical Field

[0001] The present invention relates to the technical field of limit devices, and in particular to a limit device and a control method and transmission equipment thereof. Background Art

[0002] In the related art, a baffle structure is usually provided in the transmission line. Specifically, when the carrier moves along the transmission direction of the transmission line, the baffle structure is used to extend toward the front of the carrier to stop the carrier from continuing to be transmitted on the transmission line, so that the carrier can be intercepted at a specific position on the transmission line, so as to facilitate the steps of loading and grabbing the carrier. At present, in order to ensure the smooth movement of the carrier, the left and right sides of the carrier usually have no substantial contact with the transmission line. Therefore, when the baffle structure intercepts the carrier, the carrier usually only has its front end contacted and limited by the baffle structure, and the carrier cannot be accurately limited, which makes the carrier at risk of displacement and tipping. Summary of the invention

[0003] The main purpose of the present invention is to provide a limiting device and a control method thereof, and a transmission device, aiming to improve the limiting stability of a carrier.

[0004] To achieve the above-mentioned purpose, the limiting device proposed in the present invention is applied to a transmission line, the transmission line is used to transmit a carrier, a limiting position is formed on the transmission line, and the transmission direction of the transmission line is defined as a first direction. The limiting device includes:

[0005] A limiting mechanism, the limiting mechanism is arranged at one side of the limiting station, the limiting mechanism comprises a first limiting structure and a second limiting structure arranged adjacent to the limiting station, the first limiting structure and the second limiting structure both extend along the second direction perpendicular to the first direction, and are arranged relatively spaced apart in the first direction, the limiting mechanism further comprises a third limiting structure, the third limiting structure is arranged between the first limiting structure and the second limiting structure, and extends along the first direction;

[0006] A guide mechanism, wherein the guide mechanism is disposed on a side of the limiting station away from the limiting mechanism, the guide mechanism extends along the first direction, and is disposed relatively spaced apart from the third limiting structure in the second direction; and

[0007] A driving mechanism, the driving mechanism is in driving connection with the limiting mechanism, and is used to drive the limiting mechanism to telescopically move toward or away from the limiting station, so that the limiting mechanism has an extended state and a retracted state;

[0008] When the limiting mechanism is in the extended state, the first limiting structure and the second limiting structure are used to stop at opposite sides of the carrier in the first direction respectively, and the third limiting structure and the guiding mechanism are used to stop at opposite sides of the carrier in the second direction respectively.

[0009] In one embodiment, the limiting mechanism further includes a connecting plate, which is disposed on one side of the limiting station and is transmission-connected to the driving mechanism, and is used for telescopic movement toward or away from the limiting station under the drive of the driving mechanism;

[0010] The first limiting structure, the second limiting structure and the third limiting structure are respectively arranged on the connecting plate, and all protrude from the connecting plate toward the limiting station.

[0011] In one embodiment, the first limiting structure includes a first limiting portion, the second limiting structure includes a second limiting portion, and the first limiting portion and the second limiting portion both protrude from a side of the connecting plate facing the limiting station;

[0012] The length of the first limiting portion in the second direction is set to D1, and the length of the second limiting portion in the second direction is set to D2, wherein D1>D2.

[0013] In one embodiment, a side of the second limiting portion facing the first limiting portion has a limiting surface, the limiting surface extends in a direction from the connecting plate to the guide mechanism, and is inclined in a direction away from the first limiting structure.

[0014] In one embodiment, one end of the third limiting structure facing the guide mechanism is elastically telescopically arranged in the second direction for elastically contacting with the carrier.

[0015] In one embodiment, the third limiting structure includes:

[0016] a pressing plate, the pressing plate being disposed on one side surface of the connecting plate and enclosing with the connecting plate to form a telescopic channel, the telescopic channel extending along the second direction; and

[0017] A top block is elastically and telescopically mounted on the telescopic channel through an elastic member, and at least a portion of the top block protrudes from a side of the connecting plate facing the limit station for elastically contacting the carrier.

[0018] In one embodiment, one of the pressing plate and the top block is provided with a limiting groove, and the limiting groove is extended along the length direction of the telescopic channel, and the other of the pressing plate and the top block is provided with a limiting block, and the limiting block is slidably passed through the limiting groove.

[0019] In one embodiment, the connecting plate is provided with a rack, and the driving mechanism comprises:

[0020] a drive member, comprising a rotatably disposed output shaft; and

[0021] A gear, which is sleeved on the output shaft and meshes with the rack for transmission;

[0022] The gear is used to drive the rack to drive the connecting plate to move telescopically toward or away from the limiting position when the gear is driven by the output shaft to rotate forward or reverse.

[0023] In one embodiment, the limiting mechanism further includes a guide rail, which is disposed on one side of the connecting plate, extends along the second direction, and is slidably connected to the connecting plate.

[0024] In one embodiment, the position limiting device further comprises a material arrival detection mechanism, which is used to detect whether there is a carrier on the position limiting station;

[0025] And / or, the limiting device further includes an in-place detection mechanism, and the in-place detection mechanism is used to detect whether the limiting mechanism moves to a preset position.

[0026] The present invention also proposes a control method based on the limit device as described above, comprising the following steps:

[0027] Controlling the first limiting structure to extend toward the limiting station, so that the first limiting structure enters the limiting station to intercept the carrier;

[0028] When the first limiting structure intercepts the carrier, controlling the second limiting structure to enter the limiting position so that the limiting device limits the carrier along the first direction;

[0029] The third limiting structure is controlled to enter the limiting position to drive the carrier to move along the second direction toward the guiding mechanism, so that the limiting device limits the carrier along the second direction.

[0030] The present invention further provides a transmission device, comprising a transmission line and a position limiting device as described in any one of the above, wherein the transmission direction of the transmission line is defined as a first direction, and the position limiting device comprises:

[0031] A limiting mechanism, the limiting mechanism is arranged at one side of the limiting station, the limiting mechanism comprises a first limiting structure and a second limiting structure arranged adjacent to the limiting station, the first limiting structure and the second limiting structure both extend along the second direction perpendicular to the first direction, and are arranged relatively spaced apart in the first direction, the limiting mechanism further comprises a third limiting structure, the third limiting structure is arranged between the first limiting structure and the second limiting structure, and extends along the first direction;

[0032] A guide mechanism, wherein the guide mechanism is disposed on a side of the limiting station away from the limiting mechanism, the guide mechanism extends along the first direction, and is disposed relatively spaced apart from the third limiting structure in the second direction; and

[0033] A driving mechanism, the driving mechanism is in driving connection with the limiting mechanism, and is used to drive the limiting mechanism to telescopically move toward or away from the limiting station, so that the limiting mechanism has an extended state and a retracted state;

[0034] When the limiting mechanism is in the extended state, the first limiting structure and the second limiting structure are used to stop at opposite sides of the carrier in the first direction respectively, and the third limiting structure and the guiding mechanism are used to stop at opposite sides of the carrier in the second direction respectively.

[0035] The limiting device of the technical solution of the present invention comprises a limiting mechanism, a guiding mechanism and a driving mechanism, wherein the limiting structure and the guiding mechanism are arranged on opposite sides of the limiting station along the second direction, and the driving mechanism is used to drive the limiting structure to move toward or away from the guiding mechanism, so that the limiting structure has an extended state and a retracted state. Wherein, the limiting mechanism comprises a first limiting structure and a second limiting structure arranged relatively spaced in the first direction, and when the limiting structure is in the extended state, the first limiting structure and the second limiting structure can be stopped at opposite sides of the carrier in the first direction respectively. The limiting mechanism also comprises a third limiting structure arranged between the first limiting structure and the second limiting structure, and by setting the third limiting structure and making the third limiting structure and the guiding mechanism relatively arranged along the second direction, when the limiting structure is in the extended state, the third limiting structure and the guiding mechanism can be stopped at opposite sides of the carrier in the first direction respectively. In this way, when the limiting mechanism is in the extended state, the limiting mechanism and the guiding mechanism can cooperate to realize the abutment limiting of the circumferential side of the carrier, and then the limiting stability of the carrier can be improved by limiting the circumferential direction of the carrier. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0037] Figure 1 A schematic diagram of the structure of an embodiment of a transmission pipeline provided by the present invention;

[0038] Figure 2 for Figure 1 A partial enlarged view of the middle A;

[0039] Figure 3 for Figure 1 Partial structural diagram of the transmission pipeline in the figure;

[0040] Figure 4 for Figure 1 A schematic diagram of the structure of the limit mechanism of the transmission line;

[0041] Figure 5 for Figure 1 Exploded structural diagram of the limit mechanism of the transmission line;

[0042] Figure 6 for Figure 1 A structural schematic diagram of the limiting mechanism of the transmission line from another perspective;

[0043] Figure 7 The figure is a flow chart of a control method of a limit device.

[0044] Description of Figure Numbers:

[0045] 1000. Transmission equipment;

[0046] 100, limit device; 10, limit mechanism; 11, first limit structure; 111, first limit part; 12, second limit structure; 121, second limit part; 121a, limit surface; 13, third limit structure; 131, pressure plate; 131a, limit block; 132, top block; 132a, first connection part; 132b, second connection part; 132c, limit groove; 14, connection plate; 141, rack; 15, guide rail; 20, guide mechanism; 30, drive mechanism; 31, drive member; 32, gear; 40, detection mechanism; 50, in-place detection mechanism; 51, induction switch; 52, induction sheet;

[0047] 200. Carrier; 300. Transmission line.

[0048] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0049] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0050] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0051] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or solutions that satisfy both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0052] In the related art, a baffle structure is usually provided in the transmission line. Specifically, when the carrier is transported along the transmission direction of the transmission line, the baffle structure is used to extend toward the front of the carrier to stop the carrier from continuing to be transported on the transmission line, so that the carrier can be intercepted at a specific position on the transmission line, so as to facilitate the steps of loading and grabbing the carrier. At present, in order to ensure the smooth movement of the carrier, the left and right sides of the carrier usually have no substantial contact with the transmission line. Therefore, when the baffle structure intercepts the carrier, the carrier usually only has its front end contacted and limited by the baffle structure, and the carrier cannot be accurately limited, which makes the carrier at risk of displacement and tipping.

[0053] The present invention provides a limiting device 100 .

[0054] See also Figures 1 to 6In one embodiment of the present invention, the position limiting device 100 is applied to a transmission line 300, the transmission line 300 is used to transmit the carrier 200, a position limiting station is formed on the transmission line 300, and the transmission direction of the transmission line 300 is defined as a first direction. The position limiting device 100 includes:

[0055] A limiting mechanism 10, the limiting mechanism 10 is arranged at one side of the limiting station, the limiting mechanism 10 includes a first limiting structure 11 and a second limiting structure 12 arranged adjacent to the limiting station, the first limiting structure 11 and the second limiting structure 12 both extend along the second direction perpendicular to the first direction, and are arranged relatively spaced in the first direction, the limiting mechanism 10 also includes a third limiting structure 13, the third limiting structure 13 is arranged between the first limiting structure 11 and the second limiting structure 12, and extends along the first direction;

[0056] A guide mechanism 20, wherein the guide mechanism 20 is disposed on a side of the limiting station away from the limiting mechanism 10, the guide mechanism 20 extends along the first direction, and is spaced apart from the third limiting structure 13 in the second direction; and

[0057] A driving mechanism 30, wherein the driving mechanism 30 is in transmission connection with the limiting mechanism 10 and is used to drive the limiting mechanism 10 to telescopically move toward or away from the limiting station, so that the limiting mechanism 10 has an extended state and a retracted state;

[0058] When the limiting mechanism 10 is in the extended state, the first limiting structure 11 and the second limiting structure 12 are used to stop at opposite sides of the carrier 200 in the first direction, respectively, and the third limiting structure 13 and the guiding mechanism 20 are used to stop at opposite sides of the carrier 200 in the second direction, respectively.

[0059] Specifically, the first limiting structure 11, the second limiting structure 12 and the third limiting structure 13 are all movably arranged relative to the limiting station, so as to have a movable stroke extending to the limiting station. Among them, the side of the first limiting structure 11 facing the second limiting structure 12 can be set as a plane, or can be set as a curved surface with a guiding function, or can be set in a shape similar to the front side of the carrier 200, so as to cooperate with the carrier 200 for limiting. Similarly, the side of the second limiting structure 12 facing the first limiting structure 11 can be set as a plane, a curved surface, or a shape similar to the rear side of the carrier 200, and the two side surfaces of the third limiting structure 13 and the guide mechanism 20 in the second direction can be set as a plane, a curved surface, or respectively set in a shape similar to the left and right sides of the carrier 200, which will not be repeated here.

[0060] In some embodiments, the drive mechanism 30 may be provided with a drive member 31, which can simultaneously drive the first limiting structure 11, the second limiting structure 12, and the third limiting structure 13 to telescopically move toward or away from the limiting station; such a configuration can achieve a one-to-many drive design, which is beneficial to reducing the occupied volume of the drive structure and can reduce the energy consumption of the drive mechanism 30 to a certain extent. Alternatively, the drive mechanism 30 may also be provided with three drive members 31, which are respectively connected to the first limiting structure 11, the second limiting structure 12, and the third limiting structure 13 in transmission, so as to respectively drive the first limiting structure 11, the second limiting structure 12, and the third limiting structure 13 to telescopically move toward or away from the limiting station; such a configuration can achieve a many-to-many drive design, which is beneficial to improving the movement flexibility of each limiting structure in the limiting mechanism 10. Of course, the technical solution of the present invention is not limited thereto. For example, the first limiting structure 11 and the second limiting structure 12 may also be transmission-connected to the same driving member 31, and the third limiting structure 13 may be transmission-connected to another driving member 31. In this way, the first limiting structure 11 and the second limiting structure 12 may be moved simultaneously to contact and limit the carrier 200 transferred to the limiting station in the first direction, and then the third limiting structure 13 cooperates with the guide mechanism 20 to contact and limit the carrier 200 in the second direction. The specific implementation method may be set according to actual needs and is not limited here.

[0061] Furthermore, the driving member 31 of the driving mechanism 30 can be configured as a linear driving mechanism such as a telescopic cylinder, a screw driving mechanism, etc., so that the first limiting structure 11, the second limiting structure 12 or the third limiting structure 13 can be extended into or out of the limiting position by translation. Alternatively, the driving member 31 of the driving mechanism 30 can also be configured as a rotary driving mechanism such as a rotary motor, so that the first limiting structure 11, the second limiting structure 12 or the third limiting structure 13 can be extended into or out of the limiting position by rotation. Of course, the driving mechanism 30 can also include a linear driving mechanism and a rotary driving mechanism at the same time, which is not limited here.

[0062] It should be noted that, by making the first limiting structure 11 and the second limiting structure 12 movable relative to the limiting station, the first limiting structure 11 and the second limiting structure 12 can be extended toward the limiting station to achieve the stop limit of the carrier 200 on the opposite sides in the first direction. By making the third limiting structure 13 movable relative to the limiting station, so that the third limiting structure 13 can move toward or away from the guide mechanism 20, the guide mechanism 20 can be cooperated to achieve the stop limit of the carrier 200 on the opposite sides in the second direction.

[0063] Furthermore, the guide mechanism 20 can be stationary relative to the limiting station, and when the third limiting structure 13 is extended toward the limiting station under the drive mechanism 30, the distance between the guide mechanism 20 and the third limiting structure 13 in the second direction is shortened, so that they can be clamped on the opposite sides of the carrier 200 in the second direction. In this way, the guide mechanism 20 does not need to be additionally provided with a driving structure, and can also cooperate with the third limiting structure 13 to achieve the limiting function of the carrier 200.

[0064] In some embodiments, the guide mechanism 20 can also be retractably arranged relative to the limiting station. When the third limiting structure 13 is extended toward the limiting station under the drive of the driving mechanism 30, the guide mechanism 20 can also be extended toward the limiting station, so that the distance between the third limiting structure 13 and the guide mechanism 20 in the second direction can be shortened by the opposite movement of the third limiting structure 13 and the guide mechanism 20 in the second direction, so that the two can be clamped on the opposite sides of the carrier 200 in the second direction. In this way, not only can the limiting function of the carrier 200 be realized, but also the carrier 200 can be controlled to be limited to different positions in the second direction by adjusting the movement stroke of the guide mechanism 20 and the third limiting structure 13. After the carrier 200 is limited in the second direction by the opposite movement of the third limiting structure 13 and the guide mechanism 20, and the carrier 200 is loaded and other steps are completed, the distance between the third limiting structure 13 and the guide mechanism 20 in the second direction is increased by controlling the opposite movement of the third limiting structure 13 and the guide mechanism 20 in the second direction, so that the two can be separated from the opposite sides of the carrier 200 in the second direction at the same time, so that the carrier 200 can be released.

[0065] The limiting device 100 of the technical solution of the present invention comprises a limiting mechanism 10, a guiding mechanism 20 and a driving mechanism 30, wherein the limiting mechanism and the guiding mechanism are arranged at opposite sides of the limiting station along the second direction, and the driving mechanism 30 is used to drive the limiting mechanism to move toward or away from the guiding mechanism 20, so that the limiting structure has an extended state and a retracted state. The limiting mechanism 10 comprises a first limiting structure 11 and a second limiting structure 12 arranged relatively spaced apart in the first direction, and when the limiting structure is in the extended state, the first limiting structure 11 and the second limiting structure 12 can be stopped at opposite sides of the carrier 200 in the first direction respectively. The limiting mechanism 10 also comprises a third limiting structure 13 arranged between the first limiting structure 11 and the second limiting structure 12, and by setting the third limiting structure 13 and making the third limiting structure 13 and the guiding mechanism 20 relatively arranged along the second direction, when the limiting structure is in the extended state, the third limiting structure 13 and the guiding mechanism 20 can be stopped at opposite sides of the carrier 200 in the second direction respectively. With such arrangement, when the limiting mechanism 10 is in the extended state, the limiting mechanism 10 and the guiding mechanism 20 can cooperate to achieve abutment limiting of the circumferential side of the carrier 200 , thereby improving the limiting stability of the carrier 200 by limiting the circumferential direction of the carrier 200 .

[0066] See also Figures 2 to 6 In an embodiment of the present invention, the limiting mechanism 10 further includes a connecting plate 14, which is disposed at one side of the limiting station and is transmission-connected to the driving mechanism 30, and is used for telescopic movement toward or away from the limiting station under the drive of the driving mechanism 30;

[0067] The first limiting structure 11 , the second limiting structure 12 , and the third limiting structure 13 are respectively disposed on the connecting plate 14 , and all protrude from the connecting plate 14 toward the limiting station.

[0068] With such arrangement, the installation base of the first limiting structure 11, the second limiting structure 12 and the third limiting structure 13 can be formed by the connecting plate 14, so that the first limiting structure 11, the second limiting structure 12 and the third limiting structure 13 can form a whole through the connecting plate 14, and move synchronously toward or away from the limiting station under the drive of the driving mechanism 30.

[0069] For further information, see Figures 4 to 6 In an embodiment of the present invention, the first limiting structure 11 includes a first limiting portion 111, and the second limiting structure 12 includes a second limiting portion 121, and the first limiting portion 111 and the second limiting portion 121 both protrude from a side of the connecting plate 14 facing the limiting station;

[0070] The length of the first limiting portion 111 in the second direction is set to D1, and the length of the second limiting portion 121 in the second direction is set to D2, wherein D1>D2.

[0071] In such a configuration, since the first limiting portion 111 and the second limiting portion 121 are respectively effective limiting portions of the first limiting structure 11 and the second limiting structure 12, and the length of the first limiting portion 111 in the second direction is greater than that of the second limiting portion 121, when the first limiting portion 111 and the second limiting portion 121 are synchronously extended toward the limiting position under the drive of the driving mechanism 30, the first limiting portion 111 can enter the limiting position before the second limiting portion 121.

[0072] Specifically, it is defined that when the limiting mechanism 10 moves from the retracted state toward the extended state, it has an initial position, a first extended position and a second extended position sequentially arranged on its active stroke. When the limiting mechanism 10 is in the initial position, the first limiting structure 11 and the second limiting structure 12 are both located outside the limiting station. At this time, the carrier 200 can be normally transported along its transmission direction on the transmission line 300 to pass through the limiting station smoothly; when the limiting mechanism 10 is in the first extended position, the first limiting structure 11 enters the limiting station, and the second limiting structure 12 is located outside the limiting station. At this time, only the first limiting structure 11 can play a contact limiting role on the carrier 200. The carrier 200 can first pass from the side of the second limiting structure 12 on the transmission line 300, and then stop on the first limiting structure 11, so that the carrier 200 can smoothly enter and be intercepted at the limiting station; when the limiting mechanism 10 is in the second extended position, at this time, the first limiting structure 11 and the second limiting structure 12 both enter the limiting station, and can respectively perform contact limiting on the opposite sides of the carrier 200 in the first direction.

[0073] See also Figures 4 to 6 In an embodiment of the present invention, the second limiting portion 121 has a limiting surface 121a on the side facing the first limiting portion 111, and the limiting surface 121a extends in the direction from the connecting plate 14 to the guide mechanism 20, and is inclined in a direction away from the first limiting structure 11.

[0074] Among them, the limiting surface 121a can have the function of limiting and guiding. In the process of the second limiting structure 12 extending toward the limiting station, the limiting surface 121a can first enter the limiting station. If the carrier 200 in the limiting station is tilted to a certain extent at this time, it can abut against the limiting surface 121a, and the movement of the limiting surface 121a can restore the carrier 200 to the correct position, so as to ensure the limiting effect of the limiting mechanism 10 on the carrier 200 in the first direction.

[0075] See also Figures 4 to 6In an embodiment of the present invention, one end of the third limiting structure 13 facing the guiding mechanism 20 is elastically telescopically arranged in the second direction, so as to elastically abut against the carrier 200 .

[0076] Such a configuration can avoid hard contact between the third limiting mechanism 10 and the carrier 200 when extending, thereby reducing the risk of motor overload and loss of step of the driving mechanism 30 and achieving full gapless contact with the carrier 200 to achieve precise positioning effect.

[0077] See also Figures 4 to 6 In an embodiment of the present invention, the third limiting structure 13 includes:

[0078] a pressing plate 131, wherein the pressing plate 131 is disposed on one side surface of the connecting plate 14 and is enclosed with the connecting plate 14 to form a telescopic channel, wherein the telescopic channel extends along the second direction; and

[0079] The top block 132 is elastically and telescopically mounted on the telescopic channel through an elastic member. At least a portion of the top block 132 protrudes from a side of the connecting plate 14 facing the limiting station, and is used for elastically abutting against the carrier 200 .

[0080] Among them, by arranging a pressing plate 131 on the connecting plate 14 to press and fix the top block 132, the telescopic channel formed by the pressing plate 131 and the connecting plate 14 can be used to guide and limit the top block 132. The telescopic channel formed by the pressing plate 131 and the connecting plate 14 can be set to be through-connected at both ends, or only one end facing the limiting position can be through-connected, which is not limited here. In order to reduce the manufacturing cost of the third limiting structure 13, a spring can be selected as the elastic member.

[0081] In some embodiments, the top block 132 includes a first connection portion 132a and a second connection portion 132b connected in sequence in the second direction, the second connection portion 132b can be elastically and telescopically installed in the telescopic channel, and the side of the first connection portion 132a away from the second connection portion 132b is used to cooperate with the guide mechanism 20 to collaboratively achieve the limiting of the opposite sides of the carrier 200 in the second direction. Specifically, the cross-sectional area of ​​the first connection portion 132a is larger than the cross-sectional area of ​​the telescopic channel, on the one hand, the first connection portion 132a can be stopped outside the telescopic channel to achieve the function of the retraction stroke of the limiting top block 132, and on the other hand, it can ensure that there is a sufficient contact area between the first connection portion 132a and the carrier 200, so that the third limiting structure 13 can abut and limit the carrier 200.

[0082] Further, on the basis that the cross-sectional area of ​​the first connection part 132a is larger than the cross-sectional area of ​​the telescopic channel, at least part of the first connection part 132a can be arranged opposite to the side of the connection plate 14, and the elastic member can be sandwiched between the first connection part 132a and the connection plate 14, so that the first connection part 132a and the connection plate 14 can be elastically connected through the elastic member to realize the elastic telescopic design of the top block 132. Among them, a mounting hole can be set on the side of the first connection part 132a facing the connection plate 14, and the end of the elastic member can be limited in the mounting hole, so that the elastic member can be installed by the top block 132, thereby improving the installation stability of the elastic member; a mounting hole can also be set on the side of the connection plate 14 facing the first connection part 132a, so that the elastic member can be installed by the connection plate 14. Of course, the connecting plate 14 and the first connecting portion 132a may be respectively provided with a first mounting hole and a second mounting hole, and the first mounting hole and the second mounting hole may be arranged relative to each other, and the two ends of the elastic member may be respectively limited at the first mounting hole and the second mounting hole, so that the elastic member can be jointly limited by the connecting plate 14 and the first connecting portion 132a, thereby facilitating further improving the installation stability of the elastic member.

[0083] Of course, the technical solution of the present invention is not limited to this. In another feasible implementation, the second connection part 132b can also be connected to the elastic member. For example, the telescopic channel formed by the pressing plate 131 and the connecting plate 14 can be set only at one end facing the limit position, and the elastic member is accommodated in the telescopic channel and located at the end of the second connection part 132b away from the first connection part. In this way, the two ends of the elastic member can be respectively abutted against the end wall of the telescopic channel and the end of the second connection part 132b, thereby realizing the elastic telescopic design of the top block 132. The specific implementation method can be set according to actual needs and is not limited here.

[0084] See also Figures 4 to 6 In an embodiment of the present invention, one of the pressing plate 131 and the top block 132 is provided with a limiting groove 132c, and the limiting groove 132c is extended along the length direction of the telescopic channel, and the other of the pressing plate 131 and the top block 132 is provided with a limiting block 131a, and the limiting block 131a is slidably passed through the limiting groove 132c.

[0085] With such arrangement, when the pressing plate 131 and the top block 132 move relative to each other, the limiting groove 132c can guide the limiting block 131a, thereby improving the movement stability between the pressing plate 131 and the top block 132. On this basis, the travel of the top block 132 can be limited by limiting the length of the limiting groove 132c.

[0086] Further, in a feasible implementation, the top block 132 is provided with a limiting groove 132c, and the pressure plate 131 is provided with a limiting block 131a toward the top block 132, and the limiting block 131a can be set as a screw, which can be passed through the limiting groove 132c and threadedly connected to the connecting plate 14. Such a configuration can improve the connection stability between the top block 132 and the connecting plate 14.

[0087] See also Figures 3 to 6 In an embodiment of the present invention, the connecting plate 14 is provided with a rack 141, and the driving mechanism 30 includes:

[0088] A driving member 31, comprising a rotatably arranged output shaft; and

[0089] A gear 32, wherein the gear 32 is sleeved on the output shaft and meshes with the rack 141 for transmission;

[0090] The gear 32 is used to drive the rack 141 to drive the connecting plate 14 to move telescopically toward or away from the limiting position when the gear 32 is driven by the output shaft to rotate forward or reverse.

[0091] The driving member 31 can be configured as a rotary motor, whose output shaft is arranged adjacent to the connecting plate 14 and can be rotatably arranged around the first direction. By arranging a gear 32 on the output shaft of the driving member 31, and arranging a rack 141 extending along the second direction on the connecting plate 14, and making the gear 32 and the rack 141 mesh, when the driving shaft drives the gear 32 to rotate forward around the first direction, the rack 141 can drive the connecting plate 14 to extend toward the limit station along the first direction, so as to drive the limit mechanism 10 to move to the extended state; and when the driving shaft drives the gear 32 to rotate in the opposite direction around the first direction, the rack 141 can drive the connecting plate 14 to retract away from the limit station along the first direction, so as to drive the limit mechanism 10 to move to the retracted state. The driving method is not limited to motor drive, and can also be cylinder or electric push rod drive, etc., which are directly fixed to the connecting plate 14 to drive the connecting plate 14 to extend or retract.

[0092] For further information, see Figure 4 and Figure 5 In an embodiment of the present invention, the limiting mechanism 10 further includes a guide rail 15, which is disposed on one side of the connecting plate 14, extends along the second direction, and is slidably connected to the connecting plate 14. In this way, the motion stability of the limiting mechanism 10 can be improved by the guiding effect of the guide rail 15 on the connecting plate 14. The guiding method is not limited to the guide rail, and can also be a guide groove or a linear bearing.

[0093] See also Figures 2 to 5In an embodiment of the present invention, the limiting device 100 further includes a material arrival detection mechanism 40, and the material arrival detection mechanism 40 is used to detect whether there is a carrier 200 on the limiting station.

[0094] With such configuration, the limiting device 100 can control the movement state of the limiting mechanism 10 according to whether there is a carrier 200 in the limiting position, so as to better cooperate with the carrier 200 in limiting.

[0095] Specifically, when the limiting mechanism 10 is in the first extended position, the first limiting structure 11 enters the limiting position, and the second limiting structure 12 is located outside the limiting position. At this time, only the first limiting structure 11 can play a contact limiting role on the carrier 200. The carrier 200 can first pass from the side of the second limiting structure 12 on the transmission line 300, and then stop on the first limiting structure 11, so that the carrier 200 can smoothly enter and be intercepted at the limiting position. On this basis, when the material arrival detection mechanism 40 detects that there is a carrier 200 intercepted by the first limiting structure 11 at the limiting position, the limiting device 100 can control the limiting mechanism 10 to move from the first extended position to the second extended position, so as to further move to the extended state, thereby completing the complete contact limiting of the opposite sides of the carrier 200 in the first direction.

[0096] Among them, the material arrival detection mechanism 40 can realize material arrival detection by non-contact detection. For example, in some embodiments, the material arrival detection mechanism 40 can be set as a photoelectric detector or a photographing detection mechanism, which can be specifically set adjacent to the first limiting structure 11 and set relative to the limiting station, and a detection end is set toward the limiting station, so as to timely detect the interception of the carrier 200 by the first limiting structure 11. Alternatively, the material arrival detection mechanism 40 can also realize material arrival detection by contact detection. For example, in some embodiments, the material arrival detection mechanism 40 can be set as a pressure sensor, which can be specifically set on the first limiting part 111 of the first limiting structure 11, and is used to contact the carrier 200 when the first limiting structure 11 intercepts the carrier 200, so as to realize material arrival detection. The specific implementation method can be set according to actual needs and is not limited here.

[0097] In the embodiment of the present invention, the position limiting device 100 further includes an in-position detection mechanism 50, and the in-position detection mechanism 50 is used to detect whether the position limiting mechanism 10 moves to a preset position. Such a configuration can facilitate the detection of the movement state of the position limiting mechanism 10.

[0098] In some embodiments, the in-position detection mechanism 50 can be configured as a sensing switch 51 and a sensing sheet 52. The sensing sheet 52 is connected to the connecting plate 14 of the limiting mechanism 10 and is used to move synchronously with the limiting mechanism 10. The sensing switch 51 is located on the moving path of the sensing sheet 52 and is used to be triggered by the sensing sheet 52 when the sensing sheet 52 moves to its sensing position. Specifically, only one sensing switch 51 can be provided to detect whether the limiting mechanism 10 is in an extended state or a retracted state; two sensing switches 51 can also be provided to detect whether the limiting mechanism 10 is in an extended state and a retracted state respectively; further, when the limiting mechanism 10 moves from a retracted state to an extended state and has an initial position, a first extended position and a second extended position sequentially set on its active stroke, three sensing switches 51 can be provided, and each sensing switch 51 corresponds to a position setting.

[0099] See also Figure 7 The present invention further proposes a control method for a limit device 100. The specific structure of the limit device 100 refers to the above embodiment. Since the control method of the limit device 100 adopts all the technical solutions of all the above embodiments, it at least has all the beneficial effects brought by the technical solutions of the above embodiments, which will not be described one by one here.

[0100] The control method of the limiting device 100 includes the following steps:

[0101] S10 , controlling the first limiting structure 11 to extend toward the limiting station, so that the first limiting structure 11 enters the limiting station to intercept the carrier 200 .

[0102] S20, when the first limiting structure 11 intercepts the carrier 200, controlling the second limiting structure 12 to enter the limiting position, so that the limiting device 100 limits the carrier 200 along the first direction;

[0103] S30, controlling the third limiting structure 13 to enter the limiting position to drive the carrier 200 to move along the second direction toward the guide mechanism 20, so that the limiting device 100 limits the carrier 200 along the second direction.

[0104] In this embodiment, the first limiting structure 11 needs to enter the limiting position before the second limiting structure 12. At this time, the second limiting structure 12 can release the carrier 200, while the first limiting structure 11 can intercept the carrier 200, so that the carrier 200 can smoothly enter the limiting position and be intercepted in the limiting position. It should be noted that the carrier 200 can be intercepted by allowing at least part of the first limiting structure 11 to enter the limiting position. By controlling the driving mechanism 30, the movement stroke of the first limiting structure 11 can be controlled.

[0105] In some embodiments, the first limiting structure 11 and the second limiting structure 12 can be driven respectively by different driving members 31 in the driving mechanism 30, that is, when the first limiting structure 11 extends toward the limiting station, the second limiting structure 12 can remain stationary. On this basis, after the first limiting portion 111 of the first limiting structure 11 completely enters the limiting station, the second limiting structure 12 can be driven to extend toward the limiting station. Alternatively, after part of the first limiting structure 11 enters the limiting station to preliminarily intercept the carrier 200, the first limiting structure 11 can be driven to further move toward the limiting station, and at the same time, the second limiting station also extends toward the limiting station, which is conducive to shortening the time for the first limiting structure 11 and the second limiting structure 12 to completely complete the limiting of the carrier 200, thereby improving the limiting efficiency.

[0106] Of course, the technical solution of the present invention is not limited thereto. In some embodiments, the first limiting structure 11 and the second limiting structure 12 may also be driven simultaneously by the same driving member 31 in the driving mechanism 30. On this basis, the length of the first limiting portion 111 of the first limiting structure 11 in the second direction needs to be greater than the length of the second limiting structure 12 in the second direction, so that when the first limiting structure 11 and the second limiting structure 12 move synchronously, the first limiting structure 11 can enter the limiting position before the second limiting structure 12.

[0107] Furthermore, after the first limiting structure 11 enters the limiting position before the second limiting structure 12, the carrier 200 can be directly intercepted when the carrier 200 exists in the limiting position, so as to initially limit the carrier 200 in the limiting position. When the first limiting structure 11 intercepts the carrier 200, the second limiting structure 12 is controlled to enter the limiting position, so as to avoid the second limiting structure 12 entering the limiting position when the carrier 200 has not completely entered the limiting position, thereby causing the carrier 200 to fail to enter the limiting position normally.

[0108] Furthermore, after the first limiting structure 11 and the second limiting structure 12 both enter the limiting station to complete the contact limiting of the carrier 200 on opposite sides in the first direction, the third limiting structure 13 extends toward the limiting station to perform contact limiting on the carrier 200 in the second direction, thereby avoiding the position of the carrier 200 in the first direction from being offset when moving along the second direction, thereby achieving a better limiting effect.

[0109] The present invention also proposes a transmission device 1000, including a transmission pipeline 300 and a limiting device 100. The specific structure of the limiting device 100 refers to the above-mentioned embodiment. Since the transmission pipeline 300 adopts all the technical solutions of all the above-mentioned embodiments, it has at least all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, which will not be described one by one here.

[0110] The above description is only an exemplary embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the technical concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A position limiting device, applied to a transmission line, wherein the transmission line is used to transmit a carrier, and a position limiting station is formed on the transmission line, characterized in that: The transmission direction of the transmission pipeline is defined as a first direction, and the limiting device includes: A limiting mechanism, the limiting mechanism is arranged at one side of the limiting station, the limiting mechanism comprises a first limiting structure and a second limiting structure arranged adjacent to the limiting station, the first limiting structure and the second limiting structure both extend along the second direction perpendicular to the first direction, and are arranged relatively spaced apart in the first direction, the limiting mechanism further comprises a third limiting structure, the third limiting structure is arranged between the first limiting structure and the second limiting structure, and extends along the first direction; A guide mechanism, wherein the guide mechanism is disposed on a side of the limiting station away from the limiting mechanism, the guide mechanism extends along the first direction, and is spaced apart from the third limiting structure in the second direction; and A driving mechanism, the driving mechanism is in driving connection with the limiting mechanism, and is used to drive the limiting mechanism to telescopically move toward or away from the limiting station, so that the limiting mechanism has an extended state and a retracted state; When the limiting mechanism is in the extended state, the first limiting structure and the second limiting structure are used to stop at opposite sides of the carrier in the first direction respectively, and the third limiting structure and the guiding mechanism are used to stop at opposite sides of the carrier in the second direction respectively.

2. The limiting device according to claim 1, characterized in that: The limiting mechanism further includes a connecting plate, which is disposed at one side of the limiting station and is transmission-connected to the driving mechanism, and is used for telescopic movement toward or away from the limiting station under the drive of the driving mechanism; The first limiting structure, the second limiting structure and the third limiting structure are respectively arranged on the connecting plate, and all protrude from the connecting plate toward the limiting station.

3. The limiting device according to claim 2, characterized in that: The first limiting structure includes a first limiting portion, and the second limiting structure includes a second limiting portion, and the first limiting portion and the second limiting portion both protrude from a side of the connecting plate facing the limiting station; The length of the first limiting portion in the second direction is set to D1, and the length of the second limiting portion in the second direction is set to D2, wherein D1>D2.

4. The limiting device according to claim 3, characterized in that: The second limiting portion has a limiting surface on one side facing the first limiting portion. The limiting surface extends in a direction from the connecting plate to the guide mechanism and is inclined in a direction away from the first limiting structure.

5. The limiting device according to claim 2, characterized in that: One end of the third limiting structure facing the guide mechanism is elastically telescopically arranged in the second direction, and is used for elastically abutting against the carrier.

6. The limiting device according to claim 5, characterized in that: The third limiting structure comprises: a pressing plate, the pressing plate being disposed on a side surface of the connecting plate and enclosing with the connecting plate to form a telescopic channel, the telescopic channel extending along the second direction; and A top block is elastically and telescopically mounted on the telescopic channel through an elastic member, and at least a portion of the top block protrudes from a side of the connecting plate facing the limit station for elastically contacting the carrier.

7. The limiting device according to claim 6, characterized in that: One of the pressing plate and the top block is provided with a limiting groove, and the limiting groove is extended along the length direction of the telescopic channel. The other of the pressing plate and the top block is provided with a limiting block, and the limiting block is slidably penetrated through the limiting groove.

8. The limiting device according to claim 2, characterized in that: The connecting plate is provided with a rack, and the driving mechanism comprises: a drive member, comprising a rotatably disposed output shaft; and A gear, which is sleeved on the output shaft and meshes with the rack for transmission; The gear is used to drive the rack to drive the connecting plate to move telescopically toward or away from the limiting position when the gear is driven by the output shaft to rotate forward or reverse.

9. The limiting device according to claim 2, characterized in that: The limiting mechanism further includes a guide rail, which is arranged on one side of the connecting plate, extends along the second direction, and is slidably connected to the connecting plate.

10. The limiting device according to claims 1 to 9, characterized in that: The position limiting device further comprises a material arrival detection mechanism, and the material arrival detection mechanism is used to detect whether there is a carrier on the position limiting station; And / or, the limiting device further includes an in-place detection mechanism, and the in-place detection mechanism is used to detect whether the limiting mechanism moves to a preset position.

11. A control method based on the limit device according to any one of claims 1 to 10, characterized in that: The steps of the control method include: Controlling the first limiting structure to extend toward the limiting position so that the first limiting structure enters the limiting position; When the first limiting structure intercepts the carrier, controlling the second limiting structure to enter the limiting position so that the limiting device limits the carrier along the first direction; The third limiting structure is controlled to enter the limiting position to drive the carrier to move along the second direction toward the guiding mechanism, so that the limiting device limits the carrier along the second direction.

12. A transmission device, characterized in that: It comprises a transmission line and a limiting device as claimed in any one of claims 1 to 10, wherein the limiting device is arranged on the transmission line.

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