CN113290940A

CN113290940A - High-strength high-toughness heat-sealing bottom-pasting bag folding and mouth-pasting device

Info

Publication number: CN113290940A
Application number: CN202110533164.0A
Authority: CN
Inventors: 朱国平; 夏春雷; 黎泽洋; 吕灿; 曾辉
Original assignee: Zhejiang Imeric Environmental Protection Technology Co ltd
Current assignee: Zhejiang Imeric Environmental Protection Technology Co ltd
Priority date: 2021-05-17
Filing date: 2021-05-17
Publication date: 2021-08-24
Anticipated expiration: 2041-05-17
Also published as: CN113290940B

Abstract

The invention relates to a high-strength high-toughness heat-sealing bottom-pasting bag folding and opening-pasting device which comprises a folding station and a bottom-pasting station which are sequentially arranged, wherein the folding station is provided with a folding device, the folding device comprises a turnover component, a corner component and a blowing component, the turnover component comprises two groups of turnover mechanisms which are symmetrically arranged up and down and rotate and form a woven bag accommodating space, and the turnover mechanisms are used for opening and closing bag openings of woven bags; after the angle folding assembly extends to the intersection of the two turning mechanisms, the angle folding assembly moves outwards and is matched with the turning mechanisms to smooth out the positions of the transverse folding wings on the two sides of the pocket opening and press the wrap angle of the pocket opening; the blowing assembly is arranged on the contact surface of the bevel assembly and the woven bag; the folding assembly is easy to take out of the wrap angle part when being pulled out, so that the bottom pasting deviation is caused.

Description

High-strength high-toughness heat-sealing bottom-pasting bag folding and mouth-pasting device

Technical Field

The invention relates to the field of packaging machinery, in particular to a high-strength high-toughness folding and pasting device for a heat-sealing bottom pasting bag.

Background

At present, valve bags are widely used for packaging and transporting materials, and after the valve bags are processed and formed by processing equipment, one port of the valve bags needs to be folded to form a valve port structure. In the prior art, a valve bag is folded manually by a processing person, and the bottom is pasted after the processing person folds the valve bag. From the above, the valve bag in the prior art is folded manually, which results in low processing efficiency of the valve bag.

The invention patent with Chinese patent application number CN201110097795.9 discloses a valve bag folding and forming device and a valve bag folding method. Valve bag fold forming device includes: the device comprises a support, a positioning flanging device and a slotting tool device, wherein the positioning flanging device is symmetrically arranged on the support from top to bottom; the positioning flanging device comprises a first rotating driving device, a second rotating driving device, a first rotating frame, a second rotating frame, a rotating device and a plugboard, wherein the first rotating frame is hinged on the support, the second rotating frame is hinged on the first rotating frame, the rotating device is fixedly arranged on the second rotating frame, the plugboard is fixedly arranged on a rotating shaft of the rotating device, the first rotating driving device is respectively connected with the first rotating frame and the support, and the second rotating driving device is respectively connected with the first rotating frame and the second rotating frame; the slotting tool device comprises a slotting tool and a telescopic cylinder which are fixedly arranged together, the telescopic cylinder is fixedly arranged on the support, and the slotting tool faces the positioning flanging device. The valve bag is automatically folded through the valve bag folding and forming device, and the machining efficiency of the valve bag is improved.

However, in the using process of the device, after the slotting tool is matched with the inserting plate to complete folding, the folded wrapping corners are easy to take out due to the existence of friction force in the drawing-out process of the slotting tool, and the final bottom pasting effect is further influenced.

Disclosure of Invention

Aiming at the problems, the invention provides a high-strength high-toughness bottom bag folding and pasting device, which is characterized in that a bag opening is opened through a turnover assembly, a corner wrapping part is pressed by a corner folding assembly, the bag opening is folded by the turnover assembly, and the corner folding assembly is pulled out and simultaneously an air blowing assembly enables the corner folding assembly and a contact surface of a woven bag to generate air flow, so that the corner folding assembly and the woven bag can be smoothly separated, and the technical problem that the bottom pasting is deviated due to the fact that the corner wrapping part is easy to be taken out when the folding assembly is pulled out in the prior art is solved.

In order to achieve the purpose, the invention provides the following technical scheme:

a high-strength high-toughness heat-sealing bottom-pasting bag folding and opening-pasting device comprises a folding station and a bottom-pasting station which are sequentially arranged, and is characterized in that the folding station is provided with a folding device, the folding device comprises a turnover assembly, the turnover assembly comprises two groups of turnover mechanisms which are vertically symmetrically arranged in a rotating mode and form a woven bag accommodating space, and the turnover mechanisms are used for opening and closing bag openings of woven bags;

the angle folding assembly extends to the intersection of the two turnover mechanisms, moves outwards and is matched with the turnover mechanisms to smooth out the positions of the transverse folding wings on the two sides of the pocket opening and press the corner wrapping position of the pocket opening; and

the air blowing assembly is arranged on the contact surface of the corner folding assembly and the woven bag; the turnover mechanism folds the bag opening, and the air blowing assembly blows air to separate the bevel assembly from the woven bag.

As an improvement, the turnover mechanism comprises a mounting frame;

the rotating plate is rotatably arranged on the mounting rack;

the driving unit a is installed on the mounting frame and drives the rotating plate to rotate; and

and the adsorption unit is provided with an adsorption component, the adsorption component is arranged on the rotating plate, and the outline of the adsorption component is arranged to be an isosceles trapezoid.

As an improvement, the turnover mechanism further comprises a washboard which is transversely arranged at the free end of the rotating plate in a sliding manner; and

and the driving unit b is arranged on the rotating plate and drives the washboard to reciprocate.

As an improvement, the maximum included angle between the two groups of rotating plates is 180 degrees.

As an improvement, the overturning assembly further comprises a clamping mechanism, and the clamping mechanism is arranged at a feed inlet of the woven bag accommodating space.

As an improvement, the clamping mechanism comprises a bearing table, and the bearing table is used for bearing the woven bag;

the pressing plate is arranged in a vertically sliding mode and matched with the bearing table to fix the woven bag; and

and the driving unit c is erected on the mounting frame and drives the pressing plate to move up and down.

As an improvement, the angle folding assembly comprises a transverse moving frame, and the transverse moving frame is over against the woven bag accommodating space; and

the scraper blade, it is two sets of the scraper blade elasticity is rotated and is installed the setting of sideslip frame, and is two sets of the scraper blade longitudinal symmetry sets up and with the rotor plate corresponds the setting.

The scraper blade is improved to comprise a scraping unit, the scraping unit is positioned at the free end of the scraper blade, and the scraping unit can be arranged in a mode of abutting against the rotating plate and moves towards the free end of the rotating plate; and

and the contact unit is arranged adjacent to the scraping unit and can be attached to the rotating plate.

As an improvement, the air blowing assembly comprises air outlet holes, a plurality of groups of the air outlet holes are distributed in the scraping unit and the contact unit, and the air outlet holes are communicated with external air supply equipment through pipelines; and

the control assembly is correspondingly arranged in the air outlet hole and used for controlling the opening and closing of the air outlet hole, and the scraping unit and the control assembly at the contact unit are arranged in opposite directions.

As a refinement, the control assembly includes a baffle;

the moving column is slidably arranged at the axis of the partition plate in a penetrating manner;

the through holes are formed in the partition plates in a plurality of groups;

the two groups of mounting plates are coaxially fixed at two ends of the moving column respectively, and can cover a plurality of groups of through holes simultaneously; and

the utility model provides a spacing pole, a plurality of groups spacing pole fixed mounting be in on the baffle and with the mounting panel can contradict the setting, the length of spacing pole is less than the length of removal post.

The invention has the beneficial effects that:

(1) in the folding process of the rotating plate, the scraping plate rotates along with the rotating plate and pushes out the containing space of the woven bag, the air outlet hole in the contact unit is used for discharging air, and the air is diffused outwards to enable the scraping plate to be in contact with the woven bag, so that the scraping plate is prevented from bringing out a corner wrapping area, and the yield is greatly improved;

(2) when the scraping unit of the scraper presses and smoothes the transverse folding wing and the wrap angle part, the air outlet hole at the position of the scraping unit sucks air, so that dust and impurities at the wrap angle part and the transverse folding wing can be adsorbed, and the firmness of subsequent bottom sticking is ensured;

(3) the maximum value of the included angle of the two groups of rotating plates is 180 degrees, so that the included angle is automatically folded and formed when the rotating plates drive the bag opening to be unfolded, the bag opening is fully unfolded, the folding efficiency is improved, and the folding phenomenon at the included angle is avoided.

In conclusion, the folding device has the advantages of simple structure, ingenious design, high folding efficiency, good folding effect and the like, and is particularly suitable for folding the bag opening of the valve bag.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the overall structure of the folding device;

FIG. 3 is a first view illustrating the structure of the valve bag;

FIG. 4 is a schematic view of the valve bag structure of FIG. two;

FIG. 5 is a schematic view of the turnover mechanism;

FIG. 6 is a view showing a state of folding the pocket opening by the turnover mechanism;

FIG. 7 is a schematic view of a squeegee configuration;

FIG. 8 is a diagram showing the operation state of the scraping unit;

FIG. 9 is a diagram illustrating an operation state of the contact unit;

FIG. 10 is an enlarged view taken at A in FIG. 9;

FIG. 11 is a schematic structural diagram of a control assembly;

FIG. 12 is a sectional structural view of the scraping unit;

fig. 13 is a sectional structural view of the contact unit.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the equipment or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

Examples

As shown in fig. 1 and 2, the high-strength high-toughness heat-sealing bottom-bag folding and opening-pasting device comprises a folding station i and a bottom-pasting station ii which are sequentially arranged, wherein a folding device 1 is arranged at the folding station i, the folding device 1 comprises a turnover assembly 11, the turnover assembly 11 comprises two groups of turnover mechanisms 111 which are symmetrically arranged up and down and rotate to form a woven bag accommodating space 110, and the turnover mechanisms 111 are used for opening and closing the bag openings of woven bags;

the corner folding assembly 12 extends to the intersection of the two groups of turnover mechanisms 111, and then the corner folding assembly 12 moves outwards and is matched with the turnover mechanisms 111 to smooth out the positions of the cross-folded wings at two sides of the pocket opening and press the corner wrapping position of the pocket opening; and

the air blowing assembly 13 is arranged on the contact surface of the corner folding assembly 12 and the woven bag; the turnover mechanism 111 closes the bag opening, and the air blowing assembly 13 blows air to separate the corner folding assembly 12 from the woven bag.

As shown in fig. 3 and 4, the valve bag 10 is produced by first opening and folding both ends of a sheet 100 into a hexagon, wherein a triangular region symmetrical to the left and right in the hexagon is called a wrap angle 101, and a rectangular portion symmetrical to the top and bottom in the hexagon is a lateral flap 103; the dividing line of the hexagonal middle rectangular part is a folding central line 104; secondly, sticking a valve opening strip 105 at one end of the cylinder; then, the outer sides of the two groups of transverse flaps 103 are folded inwards towards the folding central line 104, are oppositely and crosswise folded, and are slightly overlapped to form a rectangular bag bottom; finally, a rectangular covering sheet 106 is stuck to the bottom of the bag, and the bottom or the mouth of the bag is closed; the first step is completed at the folding station I, and the second step is completed at the bottom pasting station II.

Further, as shown in fig. 5 and 6, the turnover mechanism 111 includes a mounting rack 1111;

the rotating plate 1112 is rotatably mounted on the mounting rack 1111;

a driving unit a1113, the driving unit a1113 being mounted on the mounting bracket 1111, the driving unit a1113 driving the rotating plate 1112 to rotate; and

and an adsorption unit 1114, wherein the adsorption component 1114 is arranged on the rotating plate 1112, and the outline of the adsorption component 1114 is arranged to be an isosceles trapezoid.

Furthermore, the turnover mechanism 111 further comprises a washboard 1115, and the washboard 1115 is transversely and slidably arranged at the free end of the rotating plate 1112; and

a driving unit b1116, wherein the driving unit b1116 is mounted on the rotating plate 1112, and the driving unit b1116 drives the washboard 1115 to reciprocate.

Still further, the angle between the two sets of rotating plates 1112 is at maximum 180 °.

It should be noted that, the two sets of the rotating plates 1112 rotate to form an included angle of 180 °, and the horizontal flaps 103 are folded to form the wrap angle 101 automatically because the suction units 1114 are arranged as trapezoidal areas.

It should be further noted that, because the sheet 100 is formed by hot cutting, the bag mouth is easily adhered to the bag mouth, so that the bag mouth is difficult to open, the two sets of rubbing boards 1115 rub the bag mouth before the rotation of the rotation board 1112, so that the bag mouth is opened more smoothly, and the rubbing boards 1115 are also provided with the adsorption units 1114.

It is worth mentioning that the driving unit a1113 and the driving unit b1116 are both cylinder driving devices.

Further, as shown in fig. 2, the turnover assembly 11 further includes a clamping mechanism 112, and the clamping mechanism 112 is disposed at the feeding port of the woven bag accommodating space 110.

Further, the clamping mechanism 112 includes a carrying platform 1121, and the carrying platform 1121 is used for carrying woven bags;

the pressing plate 1122 is arranged in a vertically sliding mode, and the pressing plate 1122 is matched with the bearing platform 1121 to fix the woven bag; and

a driving unit c1123, wherein the driving unit c1123 is mounted on the mounting bracket 1111, and the driving unit c1123 drives the pressing plate 1122 to move up and down.

After the sheet 100 is conveyed to the woven bag accommodating space 110, the driving unit c1123 drives the pressing plate 1122 to move downwards, and the sheet 100 is fixed by matching with the bearing table 1121.

It is worth mentioning that the driving unit c1123 is a cylinder driving apparatus.

Further, as shown in fig. 7 to 10, the corner folding assembly 12 includes a transverse moving frame 121, and the transverse moving frame 121 faces the woven bag accommodating space 110; and

the two groups of scraping plates 122 are elastically and rotatably arranged on the transverse moving frame 121, and the two groups of scraping plates 122 are vertically and symmetrically arranged and are arranged corresponding to the rotating plate 1112.

Furthermore, the scraper 122 includes a scraping unit 1221, the scraping unit 1221 is located at a free end of the scraper 122, and the scraping unit 1221 and the rotating plate 1112 can be disposed in an abutting manner and move towards the free end of the rotating plate 1112; and

and a contact unit 1222, wherein the contact unit 1222 is disposed adjacent to the scraping unit 1221, and the contact unit 1222 and the rotating plate 1112 can be attached to each other.

The traverse frame 121 is driven by an external power device.

It should be further noted that when the two groups of the scraping plates 122 do not enter the woven bag accommodating space 110, the two groups of the scraping plates 122 are attached to each other, at this time, the scraping unit 1221 is a front end surface of the scraping plate 122 in the advancing direction, and the contact unit 1221 is a contact surface of the two groups of the scraping plates 122.

It is important to note that the two groups of scraping units 1221 abut against the rotating plates 1112 and are respectively located on two sides of the folding center line 104, then the traverse frame 121 continues to move forward, the two groups of scraping units 1221 move away from each other, the traverse wing 103 is flattened and the wrap angle 101 is pressed at the same time, so that the folding position of the wrap angle 101 is pressed to form a crease, then after the scraping unit 1221 finishes scraping, the scraping plates 122 are attached to the rotating plates 1112, that is, the contact units 1222 and the rotating plates 1112 clamp the traverse wing 103 and the wrap angle 101, and finally the two groups of rotating plates 1112 are folded, and the scraping plates 122 rotate along with the folding unit.

Further, as shown in fig. 7, 12 and 13, the air blowing assembly 13 includes air outlets 131, a plurality of sets of the air outlets 131 are distributed on the scraping unit 1221 and the contact unit 1222, and a plurality of sets of the air outlets 131 are communicated with an external air supply device through a pipeline; and

the control assembly 132 is correspondingly arranged in the air outlet 131, the control assembly 132 is used for controlling the opening and closing of the air outlet 131, and the scraping unit 1221 and the control assembly 132 at the contact unit 1222 are arranged in opposite directions.

When the scraping unit 1221 presses the lateral flap 103 and the wrap angle 101, an external air supply device sucks air, the air outlet 131 of the scraping unit 1221 is in an open state by the control unit 132, the air outlet 131 of the contact unit 1222 is in a closed state, and the air outlet 131 of the scraping unit 1221 adsorbs foreign dust adhering to the lateral flap 103 and the wrap angle 101.

More specifically, the rotating plate 1112 rotates, the scraping plate 122 rotates along with the rotating plate, an external air supply device supplies air, at this time, the air outlet 131 at the scraping unit 1221 is in a closed state, the air outlet 131 at the contact unit 1222 is in an open state, the scraping plate 122 is completely separated from the lateral flap 103 and the wrap angle 101 under the action of the air, and the rotating plate 1112 does not carry the wrap angle 101 when leaving the woven bag accommodating area 110.

It is worth mentioning that the axis of the air outlet 131 of the contact unit 1222 is inclined to the plane of the contact unit 1222, so that the lateral flap 103 can be stroked down when the air outlet 131 is exhausted.

Further, as shown in fig. 11, the control assembly 132 includes a partition 1321;

a moving post 1322, wherein the moving post 1322 is slidably disposed through the axis of the partition 1321;

through holes 1323, several groups of said through holes 1323 are opened in said baffle 1321;

the two sets of the mounting plates 1332 are coaxially fixed at two ends of the moving column 1322 respectively, and the mounting plate 1323 can cover a plurality of sets of the through holes 1323 simultaneously; and

a plurality of sets of limiting rods 1325, the limiting rods 1325 are fixedly installed on the partition plate 1321 and can be abutted against the mounting plate 1324, and the length of the limiting rods 1325 is smaller than that of the movable column 1322.

When the mounting plate 1324 covers the through hole 1323, the air outlet 131 is in a closed state; when the mounting plate 1324 abuts against the limiting rod 1325, the air outlet 131 is in an open state.

Working process

The sheet 100 is fed into the woven bag accommodating space 110, then the clamping mechanism 112 clamps the sheet 100, then the two sets of turnover mechanisms 111 cooperate with the corresponding suction units 1114 to open the pockets of the sheet 100, the cornerite 101 is automatically folded and formed, the scraping unit 1221 smoothes out the lateral flaps 103 and presses the cornerite 101 until the contact units 1222 and the lateral flaps 103 contact, then the rotating plate 1112 rotates, and the air blowing assembly 13 at the contact unit 1222 blows air, so that the lateral flaps 103 and the contact units 1222 can be rapidly separated.

Claims

1. The folding and opening-pasting device for the high-strength high-toughness heat-sealing bottom-pasting bag comprises a folding station (I) and a bottom-pasting station (II) which are sequentially arranged, and is characterized in that the folding station (I) is provided with a folding device (1), the folding device (1) comprises a turnover assembly (11), the turnover assembly (11) comprises two groups of turnover mechanisms (111) which are symmetrically arranged up and down and rotate to form a woven bag accommodating space (110), and the turnover mechanisms (111) are used for opening and closing the opening of the woven bag;

the corner folding assembly (12) extends to the intersection of the two turning mechanisms (111), and then the corner folding assembly (12) moves outwards and is matched with the turning mechanisms (111) to smooth the positions of the cross-folding wings at two sides of the pocket opening and press the corner wrapping position of the pocket opening; and

the blowing assembly (13) is arranged on the contact surface of the corner folding assembly (12) and the woven bag; the bag opening is folded by the turnover mechanism (111), and the air blowing assembly (13) blows air to enable the bevel assembly (12) to be separated from the woven bag.

2. A high-strength high-toughness heat-seal bottom-bag folding and pasting device as claimed in claim 1, wherein said turnover mechanism (111) comprises a mounting rack (1111);

a rotating plate (1112), wherein the rotating plate (1112) is rotatably mounted on the mounting rack (1111);

a driving unit a (1113), the driving unit a (1113) being mounted on the mounting bracket (1111), the driving unit a (1113) driving the rotating plate (1112) to rotate; and

and the adsorption unit (1114), the adsorption component (1114) is arranged on the rotating plate (1112) and the outline of the adsorption component (1114) is arranged to be isosceles trapezoid.

3. A high-strength high-toughness heat-seal bottom-bag folding and pasting device as claimed in claim 2, wherein said turnover mechanism (111) further comprises a rubbing plate (1115), and said rubbing plate (1115) is transversely slidably disposed at the free end of said rotating plate (1112); and

a driving unit b (1116), wherein the driving unit b (1116) is installed on the rotating plate (1112), and the driving unit b (1116) drives the washboard (1115) to reciprocate.

4. A high strength and high toughness heat seal bottom bag folding paste mouth device according to claim 2, characterized in that the included angle between two sets of said rotating plates (1112) is 180 ° at the maximum.

5. A high-strength high-toughness heat-seal bottom-bag folding and pasting device as claimed in claim 1, wherein said overturning assembly (11) further comprises a clamping mechanism (112), and said clamping mechanism (112) is arranged at a feed inlet of said woven bag accommodating space (110).

6. A high-strength high-toughness heat-seal bottom-bag folding and pasting device as claimed in claim 5, wherein said clamping mechanism (112) comprises a bearing platform (1121), said bearing platform (1121) is used for bearing woven bags;

the pressing plate (1122) is arranged in a vertically sliding mode, and the pressing plate (1122) is matched with the bearing platform (1121) to fix the woven bag; and

the driving unit c (1123), the driving unit c (1123) is arranged on the mounting rack (1111), and the driving unit c (1123) drives the pressing plate (1122) to move up and down.

7. A high-strength high-toughness heat-seal bottom-bag folding and pasting device as claimed in claim 2, wherein said angle folding assembly (12) comprises a cross-moving frame (121), said cross-moving frame (121) is opposite to said woven bag accommodating space (110); and

the scraper blades (122) are installed in a mode that the scraper blades (122) elastically rotate, the transverse moving frame (121) is arranged, and the scraper blades (122) are arranged in a vertically symmetrical mode and correspond to the rotating plate (1112).

8. A high-strength high-toughness heat-seal bottom-bag folding and pasting device as claimed in claim 7, wherein said scraping plate (122) comprises a scraping unit (1221), said scraping unit (1221) is located at the free end of said scraping plate (122), and said scraping unit (1221) is arranged to interfere with said rotating plate (1112) and move towards the free end of said rotating plate (1112); and

and a contact unit (1222), wherein the contact unit (1222) is arranged adjacent to the scraping unit (1221), and the contact unit (1222) and the rotating plate (1112) can be arranged in a fit manner.

9. A high-strength high-toughness heat-seal bottom bag folding and pasting device as claimed in claim 8, wherein said blowing assembly (13) comprises air outlets (131), a plurality of groups of said air outlets (131) are distributed in said scraping unit (1221) and said contact unit (1222), and a plurality of groups of said air outlets (131) are communicated with an external air supply device through pipelines; and

the control assembly (132), the control assembly (132) is correspondingly arranged in the air outlet (131), the control assembly (132) is used for controlling the opening and closing of the air outlet (131), and the scraping unit (1221) and the control assembly (132) at the contact unit (1222) are arranged in the opposite direction.

10. A high strength and high toughness heat seal bottom bag folding and pasting device as claimed in claim 9, wherein said control unit (132) comprises a partition (1321);

a moving column (1322), wherein the moving column (1322) is slidably arranged at the axis of the partition plate (1321);

through holes (1323), wherein a plurality of groups of through holes (1323) are formed in the partition plate (1321);

the two groups of mounting plates (1332) are coaxially fixed at two ends of the moving column (1322) respectively, and the mounting plate (1323) can cover a plurality of groups of through holes (1323) simultaneously; and

the limiting rod (1325), a plurality of sets of limiting rod (1325) fixed mounting be in on baffle (1321) and with mounting panel (1324) can contradict the setting, the length of limiting rod (1325) is less than the length of removal post (1322).