Non-contact safety interlocking device for ZJ112 cutter guard door

Abstract

The utility model relates to the technical field of tobacco processing equipment, in particular to a non-contact safety interlocking device for a ZJ112 cutter protective door. The non-contact type safety interlocking device comprises the electromagnetic induction type limiting safety switch, the adjustable support, the limiting block, the buffering mechanism, the air cylinder assembly and the transmission limiting mechanism, non-contact type safety interlocking is achieved, and the problems of abrasion and faults of a traditional mechanical contact type interlocking device and the problems of maintenance difficulty, potential safety hazards and the like caused by the abrasion and the faults are solved. The device is convenient to adjust and install, the service life of equipment is effectively prolonged, and the safety risk is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to tobacco processing equipment technical field, concretely relates to a non -contact safety interlock device for ZJ112 cutter door. BACKGROUND

[0002] ZJ112 cutter is an important component in cigarette rolling machine, which is used to cut the cylindrical tobacco rod into a certain length of cigarette. According to the safety production requirements, only when the ZJ112 cutter door is completely closed and locked in place, the cutter can be activated for cutting operation.

[0003] The traditional ZJ112 cutter door adopts mechanical contact safety interlock device. When the ZJ112 cutter door is opened, the key is pulled out of the interlock switch by the driving mechanism driven by the air cylinder, at this time the safety circuit is disconnected, and the cutter cannot be activated. When the ZJ112 cutter door is closed, the key is inserted back into the interlock switch under the driving of the driving mechanism, at this time the safety circuit is reconnected, and the cutter returns to the state of being activated. The mechanical contact safety interlock device realizes buffering through air spring to avoid the hard impact of ZJ112 cutter door on ZJ112 cutter door base (see Figure 1 — Figure 5 )。

[0004] However, due to the large force of the air cylinder and the limitation of air spring buffering, the interlock switch is deformed and damaged by the impact of the key and its connected driving mechanism during long-term use, resulting in that the ZJ112 cutter door cannot be normally opened or closed. In addition, due to the damage of the interlock switch, the state detection of the ZJ112 cutter door is abnormal, even if the ZJ112 cutter door is not closed correctly, the cutter can be mistakenly started, which may cause serious production accidents. This not only affects the normal production, increases the maintenance cost and time, but also has great safety hidden danger.

[0005] In addition, the mechanical contact safety interlock device also faces many challenges in daily maintenance. Due to the loosening of the fastening bolt, the deformation of the interlock switch bracket, the wear of the interlock switch and other reasons, the cooperation between the key and the interlock switch often appears bad. Especially when closing the ZJ112 cutter door, the key may not be able to be smoothly inserted into the interlock switch, resulting in that the ZJ112 cutter cannot be normally operated. When adjusting, the maintenance personnel need to spend a lot of time to recalibrate the deformed bracket and accurately adjust the cooperation degree of the key and the interlock switch. This process not only has great operation difficulty, but also is low in efficiency, which further prolongs the downtime of the equipment.

[0006] Therefore, in view of the problems existing in the traditional mechanical contact safety interlock device, it is necessary to develop a more stable and reliable safety interlock device to improve the operation efficiency and safety of the equipment. The utility model discloses a content

[0007] In view of the working need and existing problem in the prior art, the inventor has made the thinking and innovation, and the purpose is to provide a non-contact safety interlocking device for ZJ112 cutter guard door, which is used to replace and solve the problems of the original mechanical contact safety interlocking device, such as easy damage, high failure rate, poor safety and stability and the like.

[0008] In order to solve the above problems and achieve the above purpose, the utility model adopts the following technical scheme:

[0009] A non-contact safety interlocking device for ZJ112 cutter guard door, including control system, ZJ112 cutter guard plate (A), ZJ112 cutter guard plate (A) is fixedly connected on ZJ112 cutter base (C), ZJ112 cutter guard plate (A) is fixedly connected with connecting block (A1), and connecting block (A1) has connecting window (A2);ZJ112 cutter guard door (B) is connected on ZJ112 cutter guard plate (A);ZJ112 cutter base (C) is the main support structure of ZJ112 cutter;It further includes:

[0010] Electromagnetic induction type limit safety switch (1), the electromagnetic induction type limit safety switch (1) includes execution unit (11) and detection unit (12), wherein detection unit (12) is connected control system;

[0011] Adjustable support (2), the adjustable support (2) is detachably connected on the adjustable support mounting plate (62) of connecting piece (6) by bolt;

[0012] Transmission limiting mechanism (3), the transmission limiting mechanism (3) is connected on the one side of coaxial connecting piece (61) of connecting piece (6), and is connected with ZJ112 cutter guard door (B);

[0013] Buffer mechanism (5), the transmission limiting mechanism (3) is connected on the other side of coaxial connecting piece (61) of connecting piece (6), and is fixedly connected with ZJ112 cutter base (C);

[0014] Cylinder assembly (4), one end of the cylinder assembly (4) is connected with transmission limiting mechanism (3), and the other end is fixedly connected with ZJ112 cutter guard plate (A) bottom and ZJ112 cutter base (C) through cylinder mounting seat (44), and the cylinder assembly (4) is composed of cylinder (41), adjustable throttle valve (42), cylinder connecting head (43) and cylinder mounting seat (44);

[0015] Connecting piece (6), the connecting piece (6) includes:

[0016] Coaxial connector (61), the coaxial connector (61) is fixedly connected to the connecting block (A1) of the cutter guard (A), one side is connected with the transmission limiting mechanism (3), and the other side is connected with the buffer mechanism (5);

[0017] Adjustable support mounting plate (62), the adjustable support mounting plate (62) is fixedly connected to the coaxial connector (61);

[0018] Limiting block (7), the limiting block (7) is used for limiting the upper and lower limit of the action of the transmission limiting mechanism (3) and the ZJ112 cutter guard door (B), and it comprises:

[0019] Upper limiting block (71), the upper limiting block (71) is two, and is fixedly connected to the two sides of the connecting window (A2) of the connecting block (A1),

[0020] Lower limiting block (72), the lower limiting block (72) is connected above the air cylinder (41) and below the air cylinder connecting head (43).

[0021] As a preferred scheme of the utility model, the adjustable support (2) comprises:

[0022] U-shaped support (21), the U-shaped support (21) is detachably connected with the execution unit (11) of the electromagnetic induction type safety limit switch (1) through the first locking block (211) and bolt, and is detachably connected with the adjustable support mounting plate (62) through the second locking block (212) and bolt, the U-shaped support (21) is in whole "U" shape structure, and there are two groups of four waist-shaped holes on the upper surface;

[0023] L-shaped support (22), the L-shaped support (22) is detachably connected with the detection unit (12) of the electromagnetic induction type safety limit switch (1) through the third locking block (221) and bolt, and is detachably connected with the transmission limiting mechanism (3) through the fourth locking block (222) and bolt, the L-shaped support (22) is in whole "L" shape structure, and there are two groups of four waist-shaped holes on the upper surface.

[0024] As a preferred scheme of the utility model, the transmission limiting mechanism (3) comprises:

[0025] Connecting plate (31), one end of the connecting plate (31) is detachably connected with the rotating block (32) through bolt, and the other end is detachably connected with the L-shaped support (22) of the adjustable support (2) through the fourth locking block (222) and bolt.

[0026] Rotating block (32), one end of the rotating block (32) is connected with the air cylinder connecting head (43) and can rotate on the air cylinder connecting head (43), and the other end is connected with the buffer mechanism (5) through the coaxial connector (61);

[0027] A limiting rod (33) is connected to the rotating block (32) through an adjusting nut, the extending amount of the limiting rod (33) up and down can be adjusted through the adjusting nut, and the limiting rod (33) is composed of a round rod and two cylindrical limiting heads fixedly connected at two ends of the round rod.

[0028] A door protection connecting rod (34) is rotatably connected to the rotating block (32) at one end and rotatably connected to a ZJ112 cutter door protection (B) at the other end.

[0029] As a preferred scheme of the utility model, the buffer mechanism (5) comprises:

[0030] A gas spring mounting seat (51) is fixedly connected to the ZJ112 cutter base (C);

[0031] A gas spring (52) is connected to the gas spring mounting seat (51) at one end and connected to a gas spring connecting head (53) at the other end;

[0032] The gas spring connecting head (53) is connected to the gas spring (52) at one end and connected to a transmission connecting rod (54) at the other end;

[0033] The transmission connecting rod (54) is connected to the gas spring connecting head (53) at one end and rotatable on the gas spring connecting head (53), and connected to the transmission limiting mechanism (3) through a coaxial connecting piece (61) at the other end.

[0034] As a preferred scheme of the utility model, the rotating block (32) and the transmission connecting rod (54) are connected through the coaxial connecting piece (61) and can make coaxial rotary motion.

[0035] The working principle of the utility model mainly comprises:

[0036] 1. Initial state:

[0037] When the ZJ112 cutter door protection (B) is in the closed state, the execution unit (11) and the detection unit (12) of the electromagnetic induction type limiting safety switch (1) are in the normal induction working distance, at this time, the safety circuit is communicated, and the cutter can be normally activated for cutting operation.

[0038] 2. Open the door protection:

[0039] When the ZJ112 cutter door (B) is opened, the control system controls the cylinder (41) of the cylinder assembly (4) to act, and the rotating block (32) of the transmission limiting mechanism (3) is pushed to rotate through the cylinder connecting head (43), and the cutter door connecting rod (34) connected therewith drives the ZJ112 cutter door (B) to open. When the upper limiting head of the limiting rod (33) reaches any upper limiting block (71) fixedly connected beside the connecting window (A2), the cutter door (B) reaches the limit opening state, and the action stops.

[0040] During the opening of the ZJ112 cutter door (B), the distance between the execution unit (11) of the electromagnetic induction type limiting safety switch (1) and the detection unit (12) driven by the transmission limiting mechanism (3) gradually increases until it exceeds the normal induction working distance, at which time the safety circuit is disconnected, and the cutter cannot be activated.

[0041] 3. Close the door:

[0042] When the ZJ112 cutter door (B) is closed, the control system controls the cylinder (41) of the cylinder assembly (4) to act reversely, and the rotating block (32) of the transmission limiting mechanism (3) is pulled to rotate through the cylinder connecting head (43), and the cutter door connecting rod (34) connected therewith drives the ZJ112 cutter door (B) to close. When the lower limiting head of the limiting rod (33) reaches the lower limiting block (72) located above the cylinder (41) and below the cylinder connecting head (43), the cutter door (B) reaches the limit closing state, and the action stops.

[0043] When the ZJ112 cutter door (B) is completely closed and locked in place, the execution unit (11) of the electromagnetic induction type limiting safety switch (1) driven by the transmission limiting mechanism (3) returns to the initial position, and the detection unit (12) re-induces the execution unit (11), at which time the safety circuit is connected, and the cutter can be activated for cutting operation.

[0044] 4. Buffering process:

[0045] The transmission connecting rod (54) of the buffering mechanism (5) is connected with the rotating block (32) of the transmission limiting mechanism (3) through the coaxial connecting piece (61) and can make coaxial rotary motion.

[0046] The gas spring (52) of the buffering mechanism (5) is connected with the transmission limiting mechanism (3) through the gas spring connecting head (53) and the transmission connecting rod (54).

[0047] When the ZJ112 cutter door (B) is opened, the cylinder assembly (4) drives the transmission limiting mechanism (3) to rotate upward at the same time, and drives the buffering mechanism (5) to also rotate upward, at which time the gas spring (52) is stretched and enters the buffering preparation state.

[0048] When the ZJ112 cutter guard (B) is closed, the cylinder assembly (4) drives the transmission limiting mechanism (3) to rotate downward, at this time, the air spring (52) of the buffer mechanism (5) coaxially connected with the transmission limiting mechanism (3) provides a reverse force to the transmission limiting mechanism (3), so as to slow down the falling speed of the transmission limiting mechanism (3) and the closing speed of the ZJ112 cutter guard (B) connected with the transmission limiting mechanism (3), avoid hard hitting the ZJ112 cutter base (C), and prolong the service life of the equipment.

[0049] 5. Safety interlocking and device adjustment:

[0050] The electromagnetic induction type limiting safety switch (1) judges the state of the guard by the relative position between the execution unit (11) and the detection unit (12). When the distance between the execution unit (11) and the detection unit (12) exceeds the normal induction working distance, at this time, the safety circuit is disconnected, that is, the ZJ112 cutter guard (B) is not completely closed or locked in place, and the cutter cannot be activated.

[0051] The normal induction working distance between the execution unit (11) and the detection unit (12) has a range, and there is an optimal working position according to the characteristics of the product, so it needs to be debugged and adjusted. And by adjusting the up and down extension amount of the limiting rod (33) of the transmission limiting mechanism (3), the limit position of the ZJ112 cutter guard (B) opening and closing also changes the position of the electromagnetic induction type limiting safety switch (1) connected with the transmission limiting mechanism (3) and the adjustable support (2), so further adjustment and debugging are needed. The adjustable support (2) should be able to meet the adjustment requirements of multiple dimensions.

[0052] The adjustable support (2) can adjust the respective positions of the execution unit (11) and the detection unit (12) of the electromagnetic induction type limiting safety switch (1) and the distance therebetween through the U-shaped support (21), the L-shaped support (22) and the waist-shaped holes thereof, so as to ensure the accuracy and reliability of the safety interlocking.

[0053] The beneficial effects of the utility model are as follows:

[0054] 1. The utility model improves the stability and safety of equipment operation:

[0055] The utility model realizes non-contact safety detection through the electromagnetic induction type limiting safety switch, avoids the problems of switch and support wear, deformation and failure caused by long-time use of traditional mechanical contact interlocking devices, and improves the stability of equipment operation. The electromagnetic induction type limiting safety switch has the characteristics of high precision and high sensitivity, can accurately judge the state of the guard, ensure that the cutter cannot be activated when the guard is not completely closed or locked in place, effectively prevent production accidents, and improve the safety of equipment operation.

[0056] 2. The utility model discloses convenient adjustment:

[0057] Through the structure design of the U-shaped support and the L-shaped support of the adjustable support and the waist-shaped hole, cooperate locking block, the operator can easily and accurately adjust the position of the execution unit and the detection unit of the electromagnetic induction type limit safety switch and the working distance between the two, when the limit rod is adjusted, the position of the electromagnetic induction type limit safety switch changes, can be further adjusted through the adjustable support, this design not only simplifies the debugging process of safety interlock, but also improves the convenience of adjustment.

[0058] 3. The utility model discloses improve the service life of equipment, reduce maintenance cost and time:

[0059] Because the non-contact safety interlock mode reduces the wear and tear and failure of mechanical parts, maintenance personnel do not need to frequently replace damaged parts and carry out complex calibration work, thereby improving the service life of equipment, reducing maintenance cost and time.

[0060] The design of the buffer mechanism effectively reduces the impact force when the door is closed, avoids the damage and wear of the equipment caused by excessive impact force, further improves the service life of the equipment, and reduces the maintenance cost and time. BRIEF DESCRIPTION OF DRAWINGS

[0061] Figure 1 It is the structure diagram when ZJ112 cutter door is closed;

[0062] Figure 2 It is the installation position diagram of safety interlock device;

[0063] Figure 3 It is the structure diagram when ZJ112 cutter door is opened;

[0064] Figure 4 It is one of the working state diagram of original mechanical contact type interlock device;

[0065] Figure 5 It is the second working state diagram of original mechanical contact type interlock device;

[0066] Figure 6 It is the whole three-dimensional structure diagram of the utility model non-contact safety interlock device and ZJ112 cutter door when ZJ112 cutter door is opened;

[0067] Figure 7 It is the working state diagram of the utility model non-contact safety interlock device;

[0068] Figure 8 It is the whole three-dimensional structure diagram of the utility model non-contact safety interlock device;

[0069] Figure 9 is a side view of the non-contact safety interlocking device of the utility model;

[0070] Figure 10 is a local structure schematic view of the non-contact safety interlocking device of the utility model;

[0071] Figure 11 is one of the schematic views of the electromagnetic induction type limit safety switch through the adjustable support adjustment;

[0072] Figure 12 is the three-dimensional structure schematic view of the electromagnetic induction type limit safety switch and the adjustable support;

[0073] Figure 13 is the second schematic view of the electromagnetic induction type limit safety switch through the adjustable support adjustment;

[0074] Figure 14 is the three-dimensional assembly drawing of the electromagnetic induction type limit safety switch and the adjustable support;

[0075] In the figure, the reference numeral is: 1 - electromagnetic induction type limit safety switch, 11 - execution unit, 12 - detection unit;2 - adjustable support, 21 - U-shaped support, 211 - first locking block, 212 - second locking block, 22 - L-shaped support, 221 - third locking block, 222 - fourth locking block;3 - transmission limiting mechanism, 31 - connecting plate, 32 - rotating block, 33 - limiting rod, 34 - door protection connecting rod;4 - cylinder assembly, 41 - cylinder, 42 - adjustable throttle valve, 43 - cylinder connecting head, 44 - cylinder mounting seat;5 - buffer mechanism, 51 - gas spring mounting seat, 52 - gas spring, 53 - gas spring connecting head, 54 - transmission connecting rod;6 - connecting piece, 61 - coaxial connecting piece, 62 - adjustable support mounting plate;7 - limiting block, 71 - upper limiting block, 72 - lower limiting block;A - ZJ112 cutter protection plate, A1 - connecting block, A2 - connecting window;B - ZJ112 cutter door;C - ZJ112 cutter base;D1 - key, D2 - interlocking switch;I - distance between execution unit and detection unit. DETAILED DESCRIPTION

[0076] To make the purpose, technical scheme and advantages of the utility model patent more clear and explicit, the utility model patent is further explained in detail below by referring to the drawings and specific examples;It should be understood that these descriptions are only exemplary, and are not intended to limit the scope of the utility model patent;In addition, in the following description, the description of the known structure and technology is omitted to avoid unnecessary confusion of the concept of the utility model patent.

[0077] Example 1

[0078] In this embodiment, the electromagnetic induction type safety switch 1 is selected from PILZ electromagnetic induction type safety switch, and the sensing distance I between the execution unit 11 and the detection unit 12 is 0-8mm, wherein I=4mm is the optimal working distance. The remaining required parts are prefabricated and assembled in the factory.

[0079] As shown in Figure 1 — Figure 14 A non-contact safety interlocking device for ZJ112 cutter guard door, comprising a control system, a ZJ112 cutter guard plate A fixedly connected to a ZJ112 cutter base C, a connecting block A1 fixedly connected to the ZJ112 cutter guard plate A, and a connecting window A2 on the connecting block A1; a ZJ112 cutter guard door B connected to the ZJ112 cutter guard plate A; a ZJ112 cutter base C which is the main support structure of the ZJ112 cutter; it further comprises:

[0080] An electromagnetic induction type safety switch 1 comprising an execution unit 11 and a detection unit 12, wherein the detection unit 12 is connected to the control system;

[0081] An adjustable support 2 detachably connected to the adjustable support mounting plate 62 of the connecting piece 6 by bolts;

[0082] A transmission limiting mechanism 3 connected to one side of the coaxial connecting piece 61 of the connecting piece 6 and connected with the ZJ112 cutter guard door B;

[0083] A buffer mechanism 5 connected to the other side of the coaxial connecting piece 61 of the connecting piece 6 and fixedly connected with the ZJ112 cutter base C;

[0084] A cylinder assembly 4 connected at one end with the transmission limiting mechanism 3 and at the other end with the ZJ112 cutter guard plate A bottom and the ZJ112 cutter base C through the cylinder mounting seat 44, which is composed of a cylinder 41, an adjustable throttle valve 42, a cylinder connecting head 43, and a cylinder mounting seat 44;

[0085] A connecting piece 6 comprising:

[0086] A coaxial connecting piece 61 fixedly connected to the connecting block A1 of the cutter guard plate A, one side of which is connected with the transmission limiting mechanism 3 and the other side of which is connected with the buffer mechanism 5;

[0087] An adjustable support mounting plate 62 fixedly connected to the coaxial connecting piece 61;

[0088] Limiting block 7, for limiting the up and down movement of the transmission limiting mechanism 3, ZJ112 cutter guard B, it includes:

[0089] Upper limiting block 71, two in total, fixedly connected to the two sides of the connecting window A2 on the connecting block A1,

[0090] Lower limiting block 72, connected above the air cylinder 41 and below the air cylinder connecting head 43.

[0091] Further, as shown in Figure 10 — Figure 14 The adjustable support 2 includes:

[0092] U-shaped support 21, detachably connected to the execution unit 11 of the electromagnetic induction type limiting safety switch 1 through the first locking block 211 and the bolt, and detachably connected to the adjustable support mounting plate 62 through the second locking block 212 and the bolt, the U-shaped support 21 is in the overall "U" shape structure, and has two groups of four waist-shaped holes on the upper surface;

[0093] L-shaped support 22, detachably connected to the detection unit 12 of the electromagnetic induction type limiting safety switch 1 through the third locking block 221 and the bolt, and detachably connected to the transmission limiting mechanism 3 through the fourth locking block 222 and the bolt, the L-shaped support 22 is in the overall "L" shape structure, and has two groups of four waist-shaped holes on the upper surface;

[0094] Further, as shown in Figure 3 、 Figure 7 、 Figure 8 The transmission limiting mechanism 3 includes:

[0095] Connecting plate 31, one end of the connecting plate 31 is detachably connected to the rotating block 32 through the bolt, and the other end is detachably connected to the L-shaped support 22 of the adjustable support 2 through the fourth locking block 222 and the bolt.

[0096] Rotating block 32, one end of the rotating block 32 is connected to the air cylinder connecting head 43 and can rotate on the air cylinder connecting head 43, and the other end is connected to the buffer mechanism 5 through the coaxial connecting piece 61;

[0097] Limiting rod 33, the limiting rod 33 is connected to the rotating block 32 through the adjusting nut, the up and down extension amount of the limiting rod 33 can be adjusted through the adjusting nut, and the limiting rod 33 is composed of a circular rod fixedly connected to two cylindrical limiting heads at both ends.

[0098] Guard connecting rod 34, one end of the guard connecting rod 34 is connected to the rotating block 32 and can rotate, and the other end is connected to the ZJ112 cutter guard B and can rotate;

[0099] Further, as shown in Figure 6 、 Figure 7 、 Figure 9 , the buffer mechanism 5 comprises:

[0100] The air spring mounting seat 51 is fixedly connected to the ZJ112 cutter base C;

[0101] The air spring 52 is connected at one end to the air spring mounting seat 51 and at the other end to the air spring connecting head 53;

[0102] The air spring connecting head 53 is connected at one end to the air spring 52 and at the other end to the transmission connecting rod 54;

[0103] The transmission connecting rod 54 is connected at one end to the air spring connecting head 53 and rotatable on the air spring connecting head 53 and at the other end is connected through the coaxial connecting piece 61 to the transmission limiting mechanism 3;

[0104] Further, as shown in Figure 7 , the rotating block 32 is connected through the coaxial connecting piece 61 to the transmission connecting rod 54 and can do coaxial rotary motion.

[0105] In summary, the specific use process of the utility model is:

[0106] First, all components except the electromagnetic induction type limiting safety switch 1 and the adjustable support 2 are assembled as shown in Figure 1 — Figure 9 , and then the initial limit position of the ZJ112 cutter door B opening and closing is set by adjusting the up and down extension amount of the limiting rod 33.

[0107] Further, the cutter door B is manually opened, and then as shown in Figure 10 — Figure 14 , the U-shaped support 21 is connected and fixed on the adjustable support mounting plate 62 without interference with other components through the waist-shaped hole and the second locking block 212 and the fourth locking block 222 on the adjustable support 2, the L-shaped support 22 is connected and fixed on the transmission limiting mechanism 3, and the execution unit 11 and the detection unit 12 are respectively connected and fixed on the L-shaped support 22 and the U-shaped support 21 through the waist-shaped hole and the third locking block 221 and the first locking block 211 on the adjustable support 2, and the detection unit 12 is connected to the control system.

[0108] Further, as shown in Figure 10 — Figure 14Further adjustment is made by repeatedly closing and opening the cutter guard B through the device knob, the positions of the execution unit 11 and the detection unit 12 are observed, and the adjustable support 2 is continuously adjusted until the execution unit 11 and the detection unit 12 are on the same vertical line and the distance between them is the optimal working distance I = 4 mm. If the measurement still does not reach the optimal working distance after adjustment, the upper and lower extension amounts of the limiting rod 33 are appropriately adjusted under the condition that the cutter guard B is reasonably opened and closed, and the above steps are repeated to reach the optimal working distance.

[0109] Further, as shown in Figure 3 , Figure 6 , Figure 7 shown, when the ZJ112 cutter guard B is opened, the control system controls the cylinder 41 of the cylinder assembly 4 to act, and the rotating block 32 of the transmission limiting mechanism 3 is pushed to rotate through the cylinder connecting head 43, and the guard connecting rod 34 connected thereto drives the ZJ112 cutter guard B to open. When the upper limiting head of the limiting rod 33 reaches any upper limiting block 71 fixedly connected beside the connecting window A2, the cutter guard B reaches the limit opening state, and the action stops. During the opening of the ZJ112 cutter guard B, the distance between the execution unit 11 and the detection unit 12 of the electromagnetic induction type limiting safety switch 1 gradually increases under the driving of the transmission limiting mechanism 3, until it exceeds the normal induction working distance, at which time the safety circuit is disconnected, and the cutter cannot be activated.

[0110] When the ZJ112 cutter guard B is opened, the cylinder assembly 4 drives the transmission limiting mechanism 3 to rotate upward at the same time, and drives the buffer mechanism 5 to also rotate upward, at which time the air spring 52 is stretched and enters the buffer preparation state.

[0111] Further, as shown in Figure 1 , Figure 2 , Figure 7 , Figure 8 , Figure 9 shown, when the ZJ112 cutter guard B is opened, the control system controls the cylinder 41 of the cylinder assembly 4 to act in reverse, and the rotating block 32 of the transmission limiting mechanism 3 is pulled to rotate through the cylinder connecting head 43, and the guard connecting rod 34 connected thereto drives the ZJ112 cutter guard B to close. When the lower limiting head of the limiting rod 33 reaches the lower limiting block 72 located above the cylinder 41 and below the cylinder connecting head 43, the cutter guard B reaches the limit closing state, and the action stops. When the ZJ112 cutter guard B is completely closed and locked in place, the execution unit 11 of the electromagnetic induction type limiting safety switch 1 returns to the initial position under the driving of the transmission limiting mechanism 3, and the detection unit 12 re-induces the execution unit 11, at which time the safety circuit is connected, and the cutter can be activated for cutting operation.

[0112] When the ZJ112 cutter guard B is closed, the cylinder assembly 4 drives the transmission limiting mechanism 3 to rotate downward, at this time, the air spring 52 of the buffer mechanism 5 coaxially connected with the transmission limiting mechanism 3 provides a reverse force to the transmission limiting mechanism 3, slows down the falling speed of the transmission limiting mechanism 3 and the closing speed of the ZJ112 cutter guard B connected therewith, avoids hard hitting the ZJ112 cutter base C, and prolongs the service life of the equipment.

[0113] Finally, it should be understood that the above specific embodiments of the present application are only used for illustrative or explanatory purposes of the principles of the present application, and do not constitute a limitation on the present application. Therefore, any modification, equivalent replacement, improvement, etc. made without departing from the spirit and scope of the present application shall be included in the protection scope of the present application. In addition, the appended claims of the present application are intended to cover all changes and modifications falling within the scope and boundary of the appended claims, or the equivalent forms of such scope and boundary.

Claims

1. A non-contact safety interlocking device for ZJ112 cutter guard door, comprising a control system, a ZJ112 cutter guard plate (A) fixedly connected to a ZJ112 cutter base (C), a connecting block (A1) fixedly connected to the ZJ112 cutter guard plate (A), and a connecting window (A2) on the connecting block (A1); a ZJ112 cutter guard door (B) connected to the ZJ112 cutter guard plate (A); and a ZJ112 cutter base (C) as a main support structure of the ZJ112 cutter; characterized in that, It also includes: Electromagnetic induction type limit safety switch (1), the electromagnetic induction type limit safety switch (1) includes execution unit (11) and detection unit (12), wherein detection unit (12) is connected to control system; Adjustable support (2), the adjustable support (2) is detachably connected to the adjustable support mounting plate (62) of the connecting piece (6) by bolts; Transmission limiting mechanism (3), the transmission limiting mechanism (3) is connected to one side of the coaxial connecting piece (61) of the connecting piece (6), and is connected with ZJ112 cutter guard door (B); Buffer mechanism (5), the transmission limiting mechanism (3) is connected to the other side of the coaxial connecting piece (61) of the connecting piece (6), and is fixedly connected with ZJ112 cutter base (C); Cylinder assembly (4), one end of the cylinder assembly (4) is connected with the transmission limiting mechanism (3), and the other end is fixedly connected with the bottom of ZJ112 cutter guard plate (A) and ZJ112 cutter base (C) through cylinder mounting seat (44), the cylinder assembly (4) is composed of cylinder (41), adjustable throttle valve (42), cylinder connector (43) and cylinder mounting seat (44); Connecting piece (6), the connecting piece (6) includes: Coaxial connecting piece (61), the coaxial connecting piece (61) is fixedly connected to the connecting block (A1) of the cutter guard plate (A), one side is connected with the transmission limiting mechanism (3), and the other side is connected with the buffer mechanism (5); Adjustable support mounting plate (62), the adjustable support mounting plate (62) is fixedly connected to the coaxial connecting piece (61); Limiting block (7), the limiting block (7) is used for limiting the up and down movement of the transmission limiting mechanism (3) and ZJ112 cutter guard door (B), and it includes: Upper limiting block (71), the upper limiting block (71) is two, and is fixedly connected to the two sides of the connecting window (A2) of the connecting block (A1), Lower limiting block (72), the lower limiting block (72) is connected above the cylinder (41) and below the cylinder connector (43).

2. A non-contact safety interlock device for ZJ112 cutter guard door according to claim 1, characterized in that, The adjustable support (2) includes: U-shaped support (21), the U-shaped support (21) is detachably connected with the execution unit (11) of the electromagnetic induction type limit safety switch (1) through the first locking block (211) and the bolt, and is detachably connected with the adjustable support mounting plate (62) through the second locking block (212) and the bolt, the U-shaped support (21) is in the shape of "U", and has two groups of four waist-shaped holes on the upper surface; L-shaped support (22), the L-shaped support (22) is detachably connected with the detection unit (12) of the electromagnetic induction type limit safety switch (1) through the third locking block (221) and the bolt, and is detachably connected with the transmission limiting mechanism (3) through the fourth locking block (222) and the bolt, the L-shaped support (22) is in the shape of "L", and has two groups of four waist-shaped holes on the upper surface.

3. A non-contact safety interlock device for ZJ112 cutter guard door according to claim 1, characterized in that, The transmission limiting mechanism (3) includes: The connecting plate (31) is detachably connected with the rotating block (32) through a bolt at one end and detachably connected with the L-shaped support (22) of the adjustable support (2) through the fourth locking block (222) and a bolt at the other end. The rotating block (32) is connected with the cylinder connecting head (43) at one end and can rotate on the cylinder connecting head (43), and is connected with the buffering mechanism (5) through the coaxial connecting piece (61) at the other end. The limiting rod (33) is connected with the rotating block (32) through an adjusting nut and can adjust the extending amount of the limiting rod (33) up and down through the adjusting nut, and the limiting rod (33) is composed of a round rod fixedly connected with two cylindrical limiting heads at two ends. The door protection connecting rod (34) is connected with the rotating block (32) at one end and can rotate, and is connected with the ZJ112 cutter door protection (B) at the other end and can rotate.

4. A non-contact safety interlock device for ZJ112 cutter guard door according to claim 1, characterized in that, The buffering mechanism (5) comprises: The gas spring mounting seat (51) is fixedly connected with the ZJ112 cutter base (C). The gas spring (52) is connected with the gas spring mounting seat (51) at one end and connected with the gas spring connecting head (53) at the other end. The gas spring connecting head (53) is connected with the gas spring (52) at one end and connected with the transmission connecting rod (54) at the other end. The transmission connecting rod (54) is connected with the gas spring connecting head (53) at one end and can rotate on the gas spring connecting head (53), and is connected with the transmission limiting mechanism (3) through the coaxial connecting piece (61) at the other end.

5. A non-contact safety interlock device for ZJ112 cutter guard door according to claim 3, characterized in that, The rotating block (32) and the transmission connecting rod (54) are connected through the coaxial connecting piece (61) and can make coaxial rotary motion.

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