Automatic packaging device for guide rails

Abstract

The utility model is applicable to the technical field of drawer slide rail processing equipment, and provides an automatic guide rail packaging device which comprises two main frames and a main feeding assembly, and a central feeding mechanism is fixedly connected between the two main frames; through use of the gathering assembly, machined drawer sliding rails are placed on the main feeding assembly, the main feeding assembly and the auxiliary assembly are used in cooperation to convey the drawer sliding rails to the main table top, under pushing of the auxiliary assembly, the first drawer sliding rail falls onto the center feeding mechanism, and when the second drawer sliding rail falls, the second drawer sliding rail falls onto the center feeding mechanism. The gathering assembly is started to drive the rotating ram, so that the second drawer sliding rail is turned over and coincides with the first drawer sliding rail, the guide rails are turned over and adjusted according to the internal structure of the drawer guide rails, the guide rails are matched to be grouped, a user can conveniently distinguish the assembly direction and installation, and in the transportation process, the assembly efficiency is improved. And the stability of the guide rail groups which are matched with each other is relatively high.

Description

TECHNICAL FIELD

[0001] The utility model belongs to drawer slide rail processing equipment technical field especially relates to a guide rail automation packaging device. BACKGROUND

[0002] Drawer slide rail is fixed on the cabinet of furniture, and is a hardware connecting component for the drawer or cabinet plate of furniture to move in and out. The slide rail is suitable for the drawer connection of wooden or steel furniture such as cabinet, furniture, briefcase and bathroom cabinet.

[0003] In the existing drawer slide rail processing, two groups of drawer guide rail products need to be overlapped and aligned, and then packaged in the overlapped state to form a complete product. The internal structures of the two groups of drawer guide rails under different designs are different, and the assembly direction needs to be adjusted according to the internal structures of the two groups of drawer guide rails. The overall operation is relatively complex, and the operation efficiency is low by using mechanical arm and mechanical claw.

[0004] In order to solve the above problems, therefore, it is necessary to provide a guide rail automation packaging device. CONTENT OF THE UTILITY MODEL

[0005] The utility model provides a guide rail automation packaging device, which aims at solving the problems in the existing drawer slide rail processing, such as the need to overlap and align two groups of drawer guide rail products, then package in the overlapped state to form a complete product, the internal structures of the two groups of drawer guide rails under different designs are different, the assembly direction needs to be adjusted according to the internal structures of the two groups of drawer guide rails, the overall operation is relatively complex, and the operation efficiency is low by using mechanical arm and mechanical claw.

[0006] The utility model is realized in this way, a guide rail automation packaging device, including main frame and main feeding assembly, the number of main frame is two, and the center feeding mechanism is fixedly connected between two main frames, the outer wall of main frame is fixedly connected with auxiliary assembly, the outer wall of main frame is fixedly connected with packaging mechanism, the outer wall of main frame is fixedly connected with pick material assembly, the outer wall of main frame is fixedly connected with rear feeding mechanism, main table is set between two main frames,

[0007] The packaging mechanism comprises a side support, the outer wall of the side support is fixedly connected with an upper winding mechanism and a lower winding mechanism, the outer wall of the side support is fixedly connected with an upper guide rod and a lower guide rod, and the outer wall of the side support is fixedly connected with a packaging mechanism. Through the setting of the packaging mechanism, the auxiliary assembly, the material picking assembly, the center feeding mechanism, the rear feeding mechanism and the main feeding assembly are used in cooperation, in use, first, the packaging film is placed between the two upper winding mechanisms, and the packaging film is placed between the two lower winding mechanisms, the two packaging films are pulled apart by the upper winding mechanism and the lower winding mechanism, and are horizontally arranged on the rear feeding mechanism, so as to be ready for the subsequent feeding of the drawer slide rail between the two packaging films after the drawer slide rail is assembled, so as to cooperate with the packaging mechanism to timely wrap and package the two sides of the drawer slide rail, without the need for position adjustment for packaging again, the processed drawer slide rail is placed on the main feeding assembly, is conveyed to the main table top through the cooperation of the main feeding assembly and the auxiliary assembly, and falls to the center feeding mechanism under the pushing of the auxiliary assembly, when the second drawer slide rail falls, the material picking assembly is started to drive the rotating picking rod, so that the second drawer slide rail is turned over and coincides with the first drawer slide rail, so as to adjust and turn the guide rail according to the internal structure of the drawer guide rail, so as to realize the cooperation of the guide rails to form a group, so that the user can distinguish the assembly direction and installation, the mutually cooperating guide rail group has relatively high stability during transportation, the center feeding mechanism is started to convey to the rear feeding mechanism, at this time, the coincided drawer slide rail group falls on the lower packaging film horizontally arranged above the rear feeding mechanism, the position of the packaging mechanism is adjusted and used for packaging, the rear feeding mechanism is started to convey the packaged drawer slide rail group outward, and the packaging is completed.

[0008] Preferably, the packaging mechanism comprises an upper mounting frame and a lower mounting frame fixedly arranged on the side support, the outer wall of the upper mounting frame and the lower mounting frame is fixedly connected with a plurality of large adjusting hydraulic rods, one end of the large adjusting hydraulic rod is fixedly connected with an intermediate frame and a lower heating seat respectively, the bottom of the intermediate frame is fixedly connected with a small adjusting hydraulic rod, and the bottom of the small adjusting hydraulic rod is fixedly connected with an upper heating seat.

[0009] Preferably, the number of the packaging mechanism is two, and the two packaging mechanisms are symmetrically arranged on the two sides of the rear feeding mechanism; through the setting of the packaging mechanism, in use, the large adjusting hydraulic rod is started and controlled to adjust the position of the lower heating seat and the intermediate frame, so that the lower heating seat and the upper heating seat are on the outer side of the vertical direction of the drawer slide rail group on the rear feeding mechanism, the upper heating seat is adjusted downward, so that the upper heating seat and the lower heating seat are coincided, the electric resistance wire in the upper heating seat and the lower heating seat is started, so as to realize the uniform heating and packaging of the outer wall in opposite directions, and avoid the packaging defects caused by uneven heating on one side.

[0010] Preferably, the upper winding mechanism and the lower winding mechanism each comprises a connecting bracket, the inner wall of the connecting bracket movably connected with a winding shaft, the outer wall of the connecting bracket fixedly connected with a small motor, the output shaft of the small motor fixedly connected with a transmission disc through a shaft coupling, and the outer wall of the transmission disc is in abutting connection with the outer wall of the winding shaft; through the arrangement of the upper winding mechanism and the lower winding mechanism, the packaging film is installed on the winding shafts in the two lower winding mechanisms and the winding shafts in the two upper winding mechanisms, and the small motor is controlled to drive the transmission disc to rotate, so as to drive the winding shaft to rotate, and then the packaging film on the winding shaft is wound and unwound, the film tensioning and winding can be realized, so that the films on both sides are in a tensioned state, and the wrinkling during packaging is avoided, and the heating and packaging operation is affected.

[0011] Preferably, the auxiliary assembly comprises a horizontal hydraulic cylinder fixedly arranged on the outer wall of the main frame, one end of the horizontal hydraulic cylinder is fixedly connected with a feeding frame, and one end of the inner wall of the feeding frame is in abutting connection with the outer wall of the main table top; through the arrangement of the auxiliary assembly, the drawer slide rails on the main feeding assembly can be conveyed to the main table top.

[0012] Preferably, the material picking assembly comprises a transmission motor fixedly arranged on the outer wall of the main frame, the output shaft of the transmission motor is fixedly connected with a rotating roller through a shaft coupling, and the outer wall of the rotating roller is fixedly connected with a plurality of picking rods; through the arrangement of the material picking assembly, in use, when the second drawer slide rail is falling, the material picking assembly is started to drive the rotating picking rod, so that the second drawer slide rail is turned over and coincides with the first drawer slide rail, so as to adjust the guide rails according to the internal structure of the drawer guide rails, so as to realize the cooperation of the guide rails to form a group, so that the user can distinguish the assembly direction and installation, and the stability of the mutually cooperating guide rail group is relatively high during transportation.

[0013] Preferably, the main feeding assembly comprises a front end base, the inner wall of the front end base is fixedly connected with a plug-in bracket, the top of the plug-in bracket is fixedly connected with two conveying belts, and the center feeding mechanism and the rear feeding mechanism mainly comprise an external bracket and an internal small transmission belt.

[0014] Compared with the prior art, the embodiments of the present application have the following beneficial effects:

[0015] Through the setting of the packaging mechanism, and cooperating with the auxiliary assembly, the material picking assembly, the center feeding mechanism, the rear feeding mechanism and the main feeding assembly, in use, the packaging film is placed between the two upper winding mechanisms, the packaging film is placed between the two lower winding mechanisms, the two packaging films are pulled apart by the upper winding mechanism and the lower winding mechanism and are transversely arranged on the rear feeding mechanism, so as to be ready for the subsequent drawer slide rail to be sent into the two packaging films after being assembled, so as to cooperate with the sealing mechanism to timely wrap and seal the two sides of the drawer slide rail, without position adjustment for sealing again, the drawer slide rail after processing is placed on the main feeding assembly, is conveyed to the main table top through the cooperation of the main feeding assembly and the auxiliary assembly, and under the pushing of the auxiliary assembly, the first drawer slide rail falls on the center feeding mechanism, when the second drawer slide rail falls, the material picking assembly is started to drive the rotating picking rod, so that the second drawer slide rail is turned over and coincides with the first drawer slide rail, so as to adjust and adjust the guide rail according to the internal structure of the drawer guide rail, so as to realize the cooperation of the guide rails to form a group, so that the user can distinguish the assembly direction and installation, in transportation, the stability of the mutually cooperating guide rail group is relatively high, the center feeding mechanism is started to convey to the rear feeding mechanism, at this time, the coincided drawer slide rail group falls on the lower packaging film horizontally pulled above the rear feeding mechanism, the position of the sealing mechanism is adjusted and sealed, the rear feeding mechanism is started to convey the packaged drawer slide rail group outward, the packaging is completed, the operation is simple, the whole process is smooth, and the packaging efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0016] Fig. 1 is the front view of the utility model;

[0017] Fig. 2 is the structural schematic view of the packaging mechanism of the utility model;

[0018] Fig. 3 is the structural schematic view of the sealing mechanism of the utility model;

[0019] Fig. 4 is the structural schematic view of the auxiliary assembly of the utility model;

[0020] Fig. 5 is the structural schematic view of the material picking assembly of the utility model;

[0021] Fig. 6 is the structural schematic view of the main feeding assembly of the utility model.

[0022] As shown in the figure, 1, main frame; 2, packaging mechanism; 201, side support; 202, upper guide rod; 203, upper winding mechanism; 204, sealing mechanism; 2041, upper mounting frame; 2042, large adjusting hydraulic rod; 2043, upper heating seat; 2044, small adjusting hydraulic rod; 2045, middle frame; 2046, lower mounting frame; 2047, lower heating seat; 205, lower guide rod; 206, lower winding mechanism; 3, auxiliary assembly; 301, transverse hydraulic cylinder; 302, feeding frame; 4, material picking assembly; 401, transmission motor; 402, rotating roller; 403, picking rod; 5, main feeding assembly; 501, front end base; 502, conveying belt; 6, center feeding mechanism; 7, rear feeding mechanism; 8, main table top. DETAILED DESCRIPTION

[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used in the description herein is for describing particular embodiments only and is not intended to be limiting of the application; the present application will be described with reference to the drawings described above and the specification below and will be apparent from the descriptions contained herein and understood by one skilled in the art. The terminology used in the description herein is for describing particular embodiments only and is not intended to be limiting of the application. The singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprises," "comprising," "includes," and "including" and any variations thereof herein are intended to cover a non-exclusive inclusion. The terms "first," "second," and "third" and any variations thereof are used to distinguish one element from another and are not intended to be limiting of the scope of the application.

[0024] Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are they necessarily mutually exclusive of one another. It is expressly understood that the embodiments described herein are merely examples from among a great variety of embodiments that can be claimed or encompassed.

[0025] The utility model embodiment provides a guide rail automation packaging device, such as Figs. 1-6 As shown in the figure, 1, main frame; 2, packaging mechanism; 201, side support; 202, upper guide rod; 203, upper winding mechanism; 204, sealing mechanism; 2041, upper mounting frame; 2042, large adjusting hydraulic rod; 2043, upper heating seat; 2044, small adjusting hydraulic rod; 2045, middle frame; 2046, lower mounting frame; 2047, lower heating seat; 205, lower guide rod; 206, lower winding mechanism; 3, auxiliary assembly; 301, transverse hydraulic cylinder; 302, feeding frame; 4, material picking assembly; 401, transmission motor; 402, rotating roller; 403, picking rod; 5, main feeding assembly; 501, front end base; 502, conveying belt; 6, center feeding mechanism; 7, rear feeding mechanism; 8, main table top.

[0026] Among them, the packaging mechanism 2 includes the side support 201, the outer wall of the side support 201 is fixedly connected with the upper winding mechanism 203 and the lower winding mechanism 206, the outer wall of the side support 201 is fixedly connected with the upper guide rod 202 and the lower guide rod 205, and the outer wall of the side support 201 is fixedly connected with the sealing mechanism 204.

[0027] The packaging mechanism 204 comprises an upper mounting frame 2041 and a lower mounting frame 2046 fixedly arranged on the side support 201, and the outer walls of the upper mounting frame 2041 and the lower mounting frame 2046 are fixedly connected with a plurality of large adjusting hydraulic rods 2042, one end of the large adjusting hydraulic rods 2042 is fixedly connected with an intermediate frame 2045 and a lower heating seat 2047 respectively, the bottom of the intermediate frame 2045 is fixedly connected with a small adjusting hydraulic rod 2044, and the bottom of the small adjusting hydraulic rod 2044 is fixedly connected with an upper heating seat 2043;

[0028] The number of the packaging mechanism 204 is two, and the two packaging mechanisms 204 are symmetrically arranged on the two sides of the rear feeding mechanism 7.

[0029] The upper winding mechanism 203 and the lower winding mechanism 206 each comprise a connecting support, the inner wall of the connecting support is movably connected with a winding shaft, and the outer wall of the connecting support is fixedly connected with a small motor, the output shaft of the small motor is fixedly connected with a transmission disc through a shaft coupling, and the outer wall of the transmission disc is in abutting connection with the outer wall of the winding shaft.

[0030] The auxiliary assembly 3 comprises a transverse hydraulic cylinder 301 fixedly arranged on the outer wall of the main frame 1, one end of the transverse hydraulic cylinder 301 is fixedly connected with a feeding support 302, and the inner wall of one end of the feeding support 302 is in abutting connection with the outer wall of the main table top 8.

[0031] The main feeding assembly 5 comprises a front end base 501, the inner wall of the front end base 501 is fixedly connected with a plug-in support, the top of the plug-in support is fixedly connected with two conveying belts 502, and the center feeding mechanism 6 and the rear feeding mechanism 7 mainly comprise an external support and an internal small transmission belt.

[0032] It should be noted that, in the existing drawer slide rail processing, two groups of drawer guide rails need to be overlapped and aligned, and then packaged in the overlapped state to form a complete product. The internal structures of the two groups of drawer guide rails are different under different designs, and the assembly direction needs to be adjusted according to the internal structures of the two groups of drawer guide rails and the guide rails. The overall operation is relatively complex, and the operation efficiency is low by using a mechanical arm and a mechanical claw.

[0033] Specifically, in the present embodiment, the present scheme is mainly realized by the arrangement of the packaging mechanism 2, and in cooperation with the auxiliary assembly 3, the material picking assembly 4, the center feeding mechanism 6, the rear feeding mechanism 7 and the main feeding assembly 5. In use, first, the packaging film is placed between the two upper winding mechanisms 203 and the packaging film is placed between the two lower winding mechanisms 206. The two packaging films are pulled apart by the upper winding mechanism 203 and the lower winding mechanism 206, and are arranged transversely on the rear feeding mechanism 7, so as to be ready for subsequent feeding of the assembled drawer slide rail between the two packaging films, so as to cooperate with the sealing mechanism 204 to timely wrap and seal the two sides of the drawer slide rail. There is no need for repositioning of the sealing position. The processed drawer slide rail is placed on the main feeding assembly 5, and is conveyed to the main table top 8 by cooperation of the main feeding assembly 5 and the auxiliary assembly 3. Under the pushing of the auxiliary assembly 3, the first drawer slide rail falls onto the center feeding mechanism 6. When the second drawer slide rail is falling, the material picking assembly 4 is started to drive the rotating picking rod 403, so as to turn over the second drawer slide rail and coincide with the first drawer slide rail, so as to realize turning and adjusting the guide rail according to the internal structure of the drawer guide rail, so as to realize cooperation between the guide rails to form a group, so as to enable the user to distinguish the assembly direction and installation. In transportation, the stability of the mutually cooperating guide rail group is relatively high. The center feeding mechanism 6 is started to convey to the rear feeding mechanism 7. At this time, the coincided drawer slide rail group falls onto the lower packaging film horizontally pulled above the rear feeding mechanism 7. The large adjusting hydraulic rod 2042 is started and controlled to adjust the position of the lower heating seat 2047 and the intermediate frame 2045, so that the lower heating seat 2047 and the upper heating seat 2043 are located on the outside of the vertical direction of the drawer slide rail group on the rear feeding mechanism 7. The upper heating seat 2043 is adjusted downwardly. The lower heating seat 2047 and the upper heating seat 2043 are coincided. The electric resistance wire in the upper heating seat 2043 and the lower heating seat 2047 is started. The sealing operation is realized. The rear feeding mechanism 7 is started to convey the packaged drawer slide rail group outwardly. The packaging is completed. The operation is simple. The overall process is smooth. The packaging efficiency is improved.

[0034] In the present embodiment, by the arrangement of the sealing mechanism 204, in use, the large adjusting hydraulic rod 2042 is started and controlled to adjust the position of the lower heating seat 2047 and the intermediate frame 2045, so that the lower heating seat 2047 and the upper heating seat 2043 are located on the outside of the vertical direction of the drawer slide rail group on the rear feeding mechanism 7. The upper heating seat 2043 is adjusted downwardly. The lower heating seat 2047 and the upper heating seat 2043 are coincided. The electric resistance wire in the upper heating seat 2043 and the lower heating seat 2047 is started. The sealing operation is realized.

[0035] In the embodiment, the packaging film is installed on the winding shafts of the two lower winding mechanisms 206 and the winding shafts of the two upper winding mechanisms 203 respectively through the arrangement of the upper winding mechanism 203 and the lower winding mechanism 206, and the rotation of the transmission disc is driven by the small motor to rotate the winding shafts, thereby realizing the winding and unwinding of the packaging film on the winding shafts.

[0036] In the embodiment, the drawer slide rails on the main feeding assembly 5 can be transported into the main table top 8 through the arrangement of the auxiliary assembly 3.

[0037] As shown in the further preferred embodiment of the utility model, Figs. 1-6 The material picking assembly 4 comprises a transmission motor 401 fixedly arranged on the outer wall of the main frame 1, a rotating roller 402 fixedly connected with the output shaft of the transmission motor 401 through a shaft coupling, and a plurality of picking rods 403 fixedly connected with the outer wall of the rotating roller 402.

[0038] In the embodiment, when the second drawer slide rail is falling, the material picking assembly 4 is started to drive the rotating picking rod 403, so that the second drawer slide rail is turned over and coincides with the first drawer slide rail, thereby achieving the turning and adjustment of the drawer guide rails according to the internal structure of the drawer guide rails, and the cooperation of the guide rails to facilitate the user to distinguish the assembly direction and installation.

[0039] It should be noted that, for the foregoing embodiments, in order to simply describe, they are all expressed as a series of action combinations, but those skilled in the art should know that the utility model is not limited by the described action sequence, because according to the utility model, certain steps can be performed in other sequences or simultaneously. Secondly, those skilled in the art should know that the embodiments described in the specification all belong to preferred embodiments, and the actions and modules involved are not necessarily necessary for the utility model.

[0040] In several embodiments provided by the present application, it should be understood that the disclosed device can be implemented by other ways. For example, the device embodiments described above are only illustrative, for example, the division of the above units, actual implementation can have another division mode, for example, a plurality of units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the coupling or communication connection between the displayed or discussed ones can be through some interfaces, indirect coupling or communication connection between devices or units, which can be electrical or other forms.

[0041] The units described as separate components above can or can not be physically separate, and the components displayed as units can or can not be physical units, i.e., can be located in one place, or can be distributed to multiple network units. Part or all of the units can be selected to achieve the purpose of the embodiment scheme according to actual needs.

[0042] The above embodiments are only used to illustrate the technical solutions of the present application, and not to limit the protection scope of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, not all the embodiments. Based on these embodiments, all other embodiments obtained by those skilled in the art without creative labor belong to the scope to be protected by the present application. Although the present application has been described in detail with reference to the above embodiments, those skilled in the art can still combine, add or delete or make other adjustments to the features in each embodiment of the present application according to the circumstances without creative labor, so as to obtain different other technical solutions which do not deviate from the concept of the present application in essence, and these technical solutions also belong to the scope to be protected by the present application.

Claims

1. A rail automated packaging apparatus, characterized by, Including the main frame (1) and main feeding assembly (5): the number of the main frame (1) is two, and the two main frames (1) are fixedly connected with the center feeding mechanism (6), the outer wall of the main frame (1) is fixedly connected with the auxiliary assembly (3), the outer wall of the main frame (1) is fixedly connected with the packaging mechanism (2), the outer wall of the main frame (1) is fixedly connected with the material picking assembly (4), the outer wall of the main frame (1) is fixedly connected with the rear feeding mechanism (7), and the two main frames (1) are provided with the main table top (8); Wherein, the packaging mechanism (2) includes a side support (201), the outer wall of the side support (201) is fixedly connected with an upper winding mechanism (203) and a lower winding mechanism (206), the outer wall of the side support (201) is fixedly connected with an upper guide rod (202) and a lower guide rod (205), and the outer wall of the side support (201) is fixedly connected with a sealing mechanism (204).

2. A rail automated packaging apparatus as claimed in claim 1, wherein, The sealing mechanism (204) includes an upper mounting bracket (2041) and a lower mounting bracket (2046) fixedly arranged on the side support (201), the outer wall of the upper mounting bracket (2041) and the lower mounting bracket (2046) is fixedly connected with a plurality of large adjusting hydraulic rods (2042), one end of the large adjusting hydraulic rod (2042) is fixedly connected with an intermediate bracket (2045) and a lower heating seat (2047) respectively, the bottom of the intermediate bracket (2045) is fixedly connected with a small adjusting hydraulic rod (2044), and the bottom of the small adjusting hydraulic rod (2044) is fixedly connected with an upper heating seat (2043).

3. A rail automated packaging apparatus as claimed in claim 1, wherein, The number of the sealing mechanism (204) is two, and the two sealing mechanisms (204) are symmetrically arranged on the two sides of the rear feeding mechanism (7).

4. A rail automated packaging apparatus as claimed in claim 1, wherein, The upper winding mechanism (203) and the lower winding mechanism (206) both include a connecting support, the inner wall of the connecting support is movably connected with a winding shaft, the outer wall of the connecting support is fixedly connected with a small motor, the output shaft of the small motor is fixedly connected with a transmission disc through a shaft coupling, and the outer wall of the transmission disc is connected with the outer wall of the winding shaft.

5. A rail automated packaging apparatus as claimed in claim 1, wherein, The auxiliary assembly (3) includes a horizontal hydraulic cylinder (301) fixedly arranged on the outer wall of the main frame (1), one end of the horizontal hydraulic cylinder (301) is fixedly connected with a feeding frame (302), and the inner wall of one end of the feeding frame (302) is connected with the outer wall of the main table top (8).

6. A rail automated packaging apparatus as claimed in claim 1, wherein, The material picking assembly (4) includes a transmission motor (401) fixedly arranged on the outer wall of the main frame (1), the output shaft of the transmission motor (401) is fixedly connected with a rotating roller (402) through a shaft coupling, and the outer wall of the rotating roller (402) is fixedly connected with a plurality of picking rods (403).

7. A rail automated packaging apparatus as claimed in claim 1, wherein, The main feeding assembly (5) includes a front end base (501), the inner wall of the front end base (501) is fixedly connected with a plug-in frame, the top of the plug-in frame is fixedly connected with two conveying belts (502), and the center feeding mechanism (6) and the rear feeding mechanism (7) are mainly composed of an external support and an internal small transmission belt.

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