Carrying equipment and control method

Abstract

The invention relates to carrying equipment and a control method. The carrying equipment comprises a first transmission mechanism, a carrying piece, a blocking piece, a detection piece and a control assembly. The first transmission mechanism is provided with a first transmission piece extending in the first direction. The carrying part is movably connected to the first transmission part in a matched mode and can be controlled to move in the first direction relative to the first transmission mechanism. The blocking piece is connected to the carrying piece in a matched mode. The detection part is connected to the carrying part in a matched mode and used for detecting the relative position relation between the carrying part and the first transmission mechanism in real time. The control assembly is in communication connection with the detection piece and the blocking piece and is configured to control the blocking piece to block displacement of the carrying piece when the carrying piece is located at the first position relative to the first transmission mechanism. And through mutual cooperation of the blocking piece, the detection piece and the control assembly, the damage condition of the first transmission piece can be responded in time, the carrying piece is prevented from falling off, and therefore the safety of the equipment is effectively improved.

Description

Technical Field

[0001] The present application relates to the technical field of transport equipment, and in particular to a transport equipment and a control method. Background Art

[0002] At present, from the perspective of market development, the products of injection molding machines are widely used in various manufacturing and maintenance fields, and these electronic devices are widely used in energy storage power systems, electric vehicles and other fields. Therefore, the demand for handling equipment used to carry and pick up injection molding machines and to realize the inlay of injection molded parts is also constantly increasing.

[0003] In the prior art, the handling equipment includes a first transmission mechanism and a handling member. The first transmission mechanism is provided with a first transmission member extending along a first direction. The handling member is movably connected to the first transmission member and can be controlled to move relative to the first transmission mechanism along the first direction. In this way, the handling equipment can have a wide operating range, which is conducive to improving production efficiency.

[0004] In the structure of the first transmission member, a conveyor belt is usually used in conjunction with a conveyor wheel to move the transport member. However, the conveyor belt is affected by many factors such as the material, and its service life is limited. When the transport member is being injected and the product is taken out, it will be subjected to greater tension than ordinary no-load operation, which will cause the conveyor belt to age, crack or even break, and then cause the transport member to fall off, posing a greater safety hazard. Summary of the invention

[0005] Based on this, it is necessary to provide a handling device and a control method for solving the above problems.

[0006] A handling device, comprising:

[0007] A first transmission mechanism, on which a first transmission member extending along a first direction is provided;

[0008] A transporting member, movably connected to the first transmission member and capable of being controlled to move relative to the first transmission mechanism along the first direction;

[0009] A blocking member, connected to the transport member;

[0010] a detection member, connected to the transport member and used for detecting the relative position relationship between the transport member and the first transmission member in real time; and

[0011] A control component is in communication with the detection component and the blocking component, and the control component is configured to control the blocking component to block the displacement of the transporting component when the transporting component is in a first position relative to the first transmission mechanism.

[0012] In one embodiment, the control assembly includes a connector, a relay and a controller, the controller is electrically connected to the connector, the relay is connected to the connector by contact closure, the relay is connected to the controller by communication, and the controller is connected to the blocking member by communication;

[0013] Wherein, the connecting member is connected to the transport member, and the connecting member is configured to be disconnected from the contacts of the relay and the controller when the transport member is in a first position relative to the first transmission mechanism; the relay is configured to send an alarm signal to the controller after the connecting member is disconnected from the contacts; and the controller is configured to control the blocking member to block the displacement of the transport member after receiving the alarm signal.

[0014] In one embodiment, the first transmission member includes a transmission wheel, a driving wheel and a conveyor belt, the conveyor belt is connected between the transmission wheel and the driving wheel, and the transport member is connected to the conveyor belt; the transmission wheel and the driving wheel cooperate with each other to drive the transmission belt.

[0015] In one embodiment, a first driving member is further included, wherein the first driving member is connected to the driving wheel and is used to drive the driving wheel to rotate.

[0016] In one embodiment, the second transmission mechanism is provided with a second transmission member extending along a second direction, and the first transmission mechanism is movably coupled to the second transmission member and can be controlled to move relative to the second transmission mechanism along the second direction.

[0017] In one embodiment, a second driving member is further included, wherein the second driving member is connected to the first transmission member and is used to drive the first transmission member to drive the second transmission mechanism to move relative to the first transmission mechanism along the first direction.

[0018] A control method, used for the handling device in the above embodiment, characterized in that the control method comprises:

[0019] Acquiring the relative position relationship between the transport member and the first transmission member in real time;

[0020] The blocking member is controlled to open and close according to the relative position relationship between the transport member and the first transmission member.

[0021] In one embodiment, the controlling the opening and closing of the blocking member according to the relative position relationship between the transport member and the first transmission member specifically includes:

[0022] If it is determined that the transporting member is in the first position relative to the first transmission mechanism, the blocking member is controlled to start to block the displacement of the transporting member.

[0023] In one embodiment, before the step of controlling the blocking member to block the displacement of the transport member, the control method further includes:

[0024] The control connector is disconnected from the contacts of the relay and the controller, and the relay generates an alarm signal;

[0025] The alarm signal is sent to the controller, and the controller is caused to generate a control instruction, wherein the control instruction is used to control the blocking member to block the displacement of the transport member.

[0026] In one embodiment, the controlling the opening and closing of the blocking member according to the relative position relationship between the transport member and the first transmission member specifically includes:

[0027] If it is determined that the transporting member is at the second position relative to the first transmission member, the blocking member is controlled to be closed.

[0028] The above-mentioned handling equipment and control method, the handling equipment includes a first transmission mechanism, a handling member, a blocking member, a detection member, and a control component. The first transmission mechanism is provided with a first transmission member extending in a first direction. The handling member is movably connected to the first transmission member and can be controlled to move relative to the first transmission mechanism in a first direction. The blocking member is connected to the handling member. The detection member is connected to the handling member and is used to detect the relative position relationship between the handling member and the first transmission mechanism in real time. The control component is connected to the detection member and the blocking member in communication, and the control component is configured to control the blocking member to block the displacement of the handling member when the handling member is in a first position relative to the first transmission mechanism. In the actual process of the handling equipment, by controlling the first transmission member to drive the handling member in the first direction relative to the first transmission mechanism, the operating range of the handling member can be effectively expanded, which is conducive to improving production efficiency. At the same time, the detection member can detect the relative position relationship between the handling member and the first transmission member in real time, and when the detection member detects that the handling member is in a first position relative to the first transmission mechanism, the detection result will be sent to the control component. Further, the control component will block the displacement of the handling member according to the detection result. In this way, through the cooperation among the blocking member, the detection member and the control component, it is possible to respond to the damage of the first transmission member in a timely manner and prevent the transport member from falling, thereby effectively improving the safety of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the structure of the handling equipment in this application.

[0030] Figure 2 for Figure 1 The figure is a schematic flow chart of a control method of a transport device in one embodiment.

[0031] Figure 3 for Figure 1 The figure is a schematic flow chart of a control method of a handling device in another embodiment.

[0032] Figure 4 for Figure 1 The figure is a flow chart of a control method of a transport device in yet another embodiment.

[0033] Figure 5 for Figure 1 The figure is a schematic flow chart of a control method of a transport device in another embodiment.

[0034] Reference numerals

[0035] Handling equipment 100;

[0036] First transmission mechanism 10; first transmission member 101; transmission wheel 102; driving wheel 103; conveyor belt 104;

[0037] Second transmission mechanism 11; second transmission member 111;

[0038] The transport member 12 ; the blocking member 13 ; the detecting member 14 ; the first driving member 15 ; and the second driving member 16 . DETAILED DESCRIPTION

[0039] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0040] In the description of the present application, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0041] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, if the term "plurality" appears, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0042] In this application, unless otherwise clearly specified and limited, if the terms "installed", "connected", "connected", "fixed" and the like appear, these terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0043] In the present application, unless otherwise clearly specified and limited, if there is a description that a first feature is "above" or "below" a second feature, etc., or similar descriptions appear, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0044] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are for illustrative purposes only and do not represent the only implementation method.

[0045] At present, from the perspective of market development, the products of injection molding machines are widely used in various manufacturing and maintenance fields, and these electronic devices are widely used in energy storage power systems, electric vehicles and other fields. Therefore, the demand for handling equipment used to carry and pick up injection molding machines and to realize the inlay of injection molded parts is also constantly increasing.

[0046] In the prior art, the handling equipment includes a first transmission mechanism and a handling member. The first transmission mechanism is provided with a first transmission member extending along a first direction. The handling member is movably connected to the first transmission member and can be controlled to move relative to the first transmission mechanism along the first direction. In this way, the handling equipment can have a wide operating range, which is conducive to improving production efficiency.

[0047] In the structure of the first transmission member, a conveyor belt is usually used in conjunction with a conveyor wheel to move the transport member. However, the conveyor belt is affected by many factors such as the material, and its service life is limited. When the transport member is being injected and the product is taken out, it will be subjected to greater tension than ordinary no-load operation, which will cause the conveyor belt to age, crack or even break, and then cause the transport member to fall off, posing a greater safety hazard.

[0048] Based on the above considerations, in order to solve the above problems, please refer to Figure 1 One or more embodiments of the present application provide a transport device 100, which can respond to damage to the first transmission member 101 in a timely manner and prevent the transport member 12 from falling by setting a blocking member 13, a detection member 14 and a control component, thereby effectively improving the safety of the equipment.

[0049] Specifically, the transport device 100 includes a first transmission mechanism 10, a transport member 12, a blocking member 13, a detection member 14 and a control component. The first transmission mechanism 10 is provided with a first transmission member 101 extending along a first direction. The transport member 12 is movably connected to the first transmission member 101 and can be controlled to move relative to the first transmission mechanism 10 along a first direction. The blocking member 13 is connected to the transport member 12. The detection member 14 is connected to the transport member 12 and is used to detect the relative position relationship between the transport member 12 and the first transmission mechanism 10 in real time. The control component is in communication connection with the detection member 14 and the blocking member 13, and the control component is configured to control the blocking member 13 to block the displacement of the transport member 12 when the transport member 12 is in the first position relative to the first transmission mechanism 10.

[0050] In the present application, the first position refers to the position of the transport member 12 relative to the first transmission mechanism 10 when the first transmission member 101 is damaged, causing the transport member 12 to be separated from the first transmission member 101 and fall off. Correspondingly, when the first transmission member 101 operates normally and the transport member 12 is stably assembled on the first transmission member 101, the transport member 12 has a second position set relative to the first transmission mechanism 10.

[0051] It is understandable that in the actual process of the handling device 100, by controlling the first transmission member 101 to drive the handling member 12 along the first direction relative to the first transmission mechanism 10, the operating range of the handling member 12 can be effectively expanded, which is conducive to improving production efficiency. At the same time, the detection member 14 can detect the relative position relationship between the handling member 12 and the first transmission member 101 in real time, and when the detection member 14 detects that the handling member 12 is in the first position relative to the first transmission mechanism 10, the detection result will be sent to the control component. Further, the control component will block the displacement of the handling member 12 by the blocking member 13 according to the detection result. In this way, through the cooperation of the blocking member 13, the detection member 14 and the control component, it is possible to respond to the damage of the first transmission member 101 in a timely manner and prevent the handling member 12 from falling, thereby effectively improving the safety of the equipment.

[0052] In some embodiments, see Figure 1 The control component includes a connector, a relay and a controller. The controller is electrically connected to the connector. The contacts of the relay and the connector are closed. The relay is communicatively connected to the controller. The controller is communicatively connected to the blocking member 13.

[0053] The connecting member is connected to the transport member 12, and the connecting member is configured to be disconnected from the contacts of the relay and the controller when the transport member 12 is in the first position relative to the first transmission mechanism 10. The relay is configured to send an alarm signal to the controller after the connecting member is disconnected from the contacts. The controller is configured to control the blocking member 13 to block the displacement of the transport member 12 after receiving the alarm signal.

[0054] Furthermore, for ease of understanding, the situation in which the first transmission member 101 is damaged, causing the transport member 12 to detach from the first transmission member 101 and fall off, is defined as a fault state of the transport equipment 100; correspondingly, the situation in which the first transmission member 101 operates normally and the transport member 12 is stably assembled on the first transmission member 101 is defined as a normal state of the transport equipment 100.

[0055] In this way, when the handling equipment 100 is in a normal state, the connector, relay and controller are interconnected, the current output by the controller can flow normally in the connector, the relay is energized, and the relay will not send an alarm signal to the controller.

[0056] When the handling device 100 is in a faulty state, the handling member 12 is separated from the first transmission member 101 and falls, and the connecting member is disconnected from the contacts of the relay and the controller, the relay is immediately powered off, the contacts of the relay are immediately restored to conduction, and an alarm signal is sent to the controller. After receiving the alarm signal, the controller controls the blocking member 13 to block the displacement of the handling member 12. In this way, it is possible to respond to the damage of the first transmission member 101 in a timely manner and prevent the handling member 12 from falling, thereby effectively improving the safety of the equipment.

[0057] In some embodiments, see Figure 1 The first transmission member 101 includes a transmission wheel 102, a driving wheel 103 and a conveyor belt 104. The conveyor belt 104 is connected between the transmission wheel 102 and the driving wheel 103, and the transport member 12 is connected to the conveyor belt 104. In the actual process of the transport device 100, the transmission wheel 102 and the driving wheel 103 cooperate with each other to drive the transmission belt, and the transmission belt further drives the transport member 12 to move synchronously, thereby effectively expanding the operating range of the transport member 12 and improving production efficiency.

[0058] In some embodiments, see Figure 1 The transport device 100 further includes a first driving member 15 , which is connected to the driving wheel 103 and is used to drive the driving wheel 103 to rotate.

[0059] In some embodiments, see Figure 1 The second transmission mechanism 11 is provided with a second transmission member 111 extending along the second direction. The first transmission mechanism 10 is movably connected to the second transmission member 111 and can be controlled to move relative to the second transmission mechanism 11 along the second direction.

[0060] In the present application, for ease of understanding, the first direction is defined as the direction of gravity, and the second direction is defined as the horizontal direction perpendicular to the direction of gravity. Thus, taking the XYZ axis spatial coordinate system as an example, the first direction may correspond to the Z axis direction, and the second direction may correspond to either the X or Y axis direction. The present application takes the second direction as the X axis direction as an example for writing embodiments.

[0061] It can be understood that by controlling the transport member 12 to move in the second direction relative to the second moving mechanism, the Z-axis coordinate of the transport member 12 in the XYZ-axis space coordinate system is changed. Correspondingly, by controlling the first moving mechanism to move in the first direction relative to the second moving mechanism, the transport member 12 connected to the first moving guide rail can be synchronously moved in the second direction relative to the second moving mechanism under the drive of the first moving mechanism, thereby changing the X-axis coordinate of the transport member 12 in the XYZ-axis space coordinate system. In this way, the first transmission member 101 and the second transmission member 111 can realize the movement of the transport member 12 to any position in two different directions. Correspondingly, the user can control the transport member 12 to move to a specific position according to actual needs, so that the transport member 12 can accurately pick up the material, which effectively improves the production accuracy.

[0062] In some embodiments, see Figure 1 The handling device 100 further includes a second driving member 16 , which is connected to the first transmission member 101 and is used to drive the first transmission member 101 to drive the second transmission mechanism 11 to move relative to the first transmission mechanism 10 along the first direction.

[0063] See also Figure 2 In one or more embodiments of the present application, a control method is further provided. The control method is used for the transport device 100 in the aforementioned embodiment. The control method includes:

[0064] S10: acquiring the relative position relationship between the transporting member 12 and the first transmission member 101 in real time.

[0065] S20 : ​​controlling the blocking member 13 to open or close according to the relative position relationship between the transport member 12 and the first transmission member 101 .

[0066] It is understandable that in the actual process of the handling device 100, the first transmission member 101 may be damaged due to various factors such as service life, material fatigue or overload. Therefore, by obtaining the relative position relationship between the handling member 12 and the first transmission member 101 in real time, it is possible to timely reflect whether the first transmission member 101 is damaged, so as to control the opening and closing of the blocking member 13, and timely prevent the handling member 12 from falling off due to the damage of the first transmission member 101, and further avoid the occurrence of safety hazards, thereby effectively improving the safety of the equipment.

[0067] In some embodiments, see Figure 3 The method of controlling the opening and closing of the blocking member 13 according to the relative position relationship between the transport member 12 and the first transmission member 101 specifically includes:

[0068] S201 : If it is determined that the transporting member 12 is at the first position relative to the first transmission mechanism 10 , the blocking member 13 is controlled to start to block the displacement of the transporting member 12 .

[0069] It is understandable that when the detection member 14 detects that the transport member 12 is in the first position relative to the first transmission mechanism 10, the detection result will be sent to the control component. Further, the control component will block the displacement of the transport member 12 by the blocking member 13 according to the detection result. In this way, through the cooperation of the blocking member 13, the detection member 14 and the control component, it is possible to respond to the damage of the first transmission member 101 in a timely manner and block the transport member 12 from falling, thereby effectively improving the safety of the equipment.

[0070] In some embodiments, see Figure 4 Before the step of controlling the blocking member 13 to block the displacement of the transporting member 12, the control method further comprises:

[0071] S202: The control connector is disconnected from the contacts of the relay and the controller, and the relay generates an alarm signal.

[0072] S203 : sending an alarm signal to the controller, and causing the controller to generate a control instruction, wherein the control instruction is used to control the blocking member 13 to block the displacement of the transporting member 12 .

[0073] It is understandable that when it is determined that the transport member 12 is in the first position relative to the first transmission mechanism 10, that is, it is determined that the transport device 100 is in a faulty state, and the transport member 12 is separated from the first transmission member 101 and falls, the connector will be disconnected from the contacts of the relay and the controller, the relay will be powered off immediately, the contacts of the relay will immediately resume conduction, and an alarm signal will be sent to the controller. After receiving the alarm signal, the controller controls the blocking member 13 to block the displacement of the transport member 12. In this way, it is possible to respond to the damage of the first transmission member 101 in a timely manner and prevent the transport member 12 from falling, thereby effectively improving the safety of the equipment.

[0074] In some embodiments, see Figure 5 Controlling the opening and closing of the blocking member 13 according to the relative position relationship between the transport member 12 and the first transmission member 101 specifically includes:

[0075] S204: If it is determined that the transporting member 12 is at the second position relative to the first transmission member 101, the blocking member 13 is controlled to be closed.

[0076] It can be understood that when it is determined that the transport member 12 is in the second position relative to the first transmission member 101, that is, it is determined that the transport equipment 100 is in a normal state, the connecting member, the relay and the controller are interconnected, the current output by the controller can flow normally in the connecting member, the relay is in an energized state, and the relay will not send an alarm signal to the controller.

[0077] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0078] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. A handling device, characterized in that: include: A first transmission mechanism, on which a first transmission member extending along a first direction is provided; A transporting member, movably connected to the first transmission member and capable of being controlled to move relative to the first transmission mechanism along the first direction; A blocking member, connected to the transport member; A detection member, connected to the transport member and used for detecting the relative position relationship between the transport member and the first transmission member in real time; as well as A control component is in communication with the detection component and the blocking component, and the control component is configured to control the blocking component to block the displacement of the transporting component when the transporting component is in a first position relative to the first transmission mechanism.

2. The handling equipment according to claim 1, characterized in that: The control assembly includes a connector, a relay and a controller, wherein the controller is electrically connected to the connector, the relay is connected to the connector by contact closure, the relay is connected to the controller by communication, and the controller is connected to the blocking member by communication; Wherein, the connecting member is connected to the transport member, and the connecting member is configured to be disconnected from the contacts of the relay and the controller when the transport member is in a first position relative to the first transmission mechanism; the relay is configured to send an alarm signal to the controller after the connecting member is disconnected from the contacts; and the controller is configured to control the blocking member to block the displacement of the transport member after receiving the alarm signal.

3. The handling equipment according to claim 1, characterized in that: The first transmission member includes a transmission wheel, a driving wheel and a conveyor belt. The conveyor belt is connected between the transmission wheel and the driving wheel, and the transport member is matched on the conveyor belt. The transmission wheel and the driving wheel cooperate with each other to drive the transmission belt.

4. The handling equipment according to claim 3, characterized in that: It also includes a first driving member, which is connected to the driving wheel and is used to drive the driving wheel to rotate.

5. The handling equipment according to claim 1, characterized in that: The second transmission mechanism is provided with a second transmission member extending along a second direction, and the first transmission mechanism is movably connected to the second transmission member and can be controlled to move relative to the second transmission mechanism along the second direction.

6. The handling equipment according to claim 5, characterized in that: It also includes a second driving member, which is connected to the first transmission member and is used to drive the first transmission member to drive the second transmission mechanism to move relative to the first transmission mechanism along the first direction.

7. A control method for a handling device as claimed in any one of claims 1 to 6, characterized in that: The control method comprises: Acquiring the relative position relationship between the transport member and the first transmission member in real time; The blocking member is controlled to open and close according to the relative position relationship between the transport member and the first transmission member.

8. The control method according to claim 7, characterized in that: The controlling of the opening and closing of the blocking member according to the relative position relationship between the transport member and the first transmission member specifically includes: If it is determined that the transporting member is in the first position relative to the first transmission mechanism, the blocking member is controlled to start to block the displacement of the transporting member.

9. The control method according to claim 8, characterized in that: Before the step of controlling the blocking member to block the displacement of the transport member, the control method further comprises: The control connector is disconnected from the contacts of the relay and the controller, and the relay generates an alarm signal; The alarm signal is sent to the controller, and the controller is caused to generate a control instruction, wherein the control instruction is used to control the blocking member to block the displacement of the transport member.

10. The control method according to claim 7, characterized in that: The controlling the opening and closing of the blocking member according to the relative position relationship between the transport member and the first transmission member specifically includes: If it is determined that the transporting member is at the second position relative to the first transmission member, the blocking member is controlled to be closed.

Images