Automatic forming folding line pre-pressing control system

Abstract

The utility model discloses an automatic forming folding line prepressing control system which comprises a belt conveyor, two rotating shafts which are located above a conveying belt and are parallel to supporting rollers are further installed on a rack, a plurality of movable frames are movably connected to the two rotating shafts in a sleeved mode, the movable frames are rotationally connected with sliding sleeves through shaft sleeves, and the sliding sleeves are movably connected to the rotating shafts in a sleeved mode. The two rotating shafts are movably sleeved with a plurality of sets of friction wheels and pressing wheels respectively, a steam nozzle located between the friction wheels and the pressing wheels is further installed on the movable frame, and a steam conveying pipe used for being connected with a steam generator is installed on the steam nozzle. The friction wheel is arranged at the position, corresponding to the folding line of the paperboard, of the belt conveyor and used for polishing and cutting off a small amount of paperboard fibers, hot steam is sprayed to the position through the steam nozzle to slightly wet and soften the position, and then the folding line of the paperboard is pre-pressed through extrusion of the pressing wheel, so that the paperboard folding line is formed. And back surface line explosion caused by over-high structural strength of the folding line position during folding is avoided.

Description

Technical Field

[0001] This utility model relates to the field of cardboard box processing technology, specifically to an automatic forming and folding line pre-pressing control system. Background Technology

[0002] When processing cardboard boxes from cardboard, as per the instruction manual... Figure 6 As shown, the shaded area in the cardboard is the cutting area, and the dotted line is the folding line. After cutting out the cutting area, fold along the folding line and then glue or bind to complete the production of the cardboard box.

[0003] Currently, many cardboard boxes on the market are made of corrugated paper. Corrugated paper has at least two outer layers and a corrugated paper layer between them. When folding the cardboard along the fold line during production, the outer cardboard fibers are prone to breakage, resulting in a burst. Extensive observation has revealed a high burst rate when the fold line coincides with the trough of the corrugated paper. Because the fold line is supported by the corrugated paper peaks on both sides, and the lower part of the cardboard corresponding to the fold line is hollow, the fibers at the bottom of the cardboard are particularly prone to breakage, leading to a burst. This problem accounts for a significant proportion of the defect rate in cardboard box production and is a common quality defect that urgently needs improvement. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides an automatic forming and folding line pre-compression control system to solve the problem of line bursting that easily occurs when corrugated cardboard is processed into cartons.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0006] An automatic forming and folding line pre-compression control system includes a belt conveyor. Multiple support rollers supporting the bottom of the conveyor belt are installed on the frame of the belt conveyor. Two rotating shafts located above the conveyor belt and parallel to the support rollers are also installed on the frame. The rotating shaft near the upstream side of the conveyor belt is connected to a drive motor installed on the frame.

[0007] The rotating shaft is a hexagonal shaft, and several movable frames are movably sleeved on both rotating shafts. The movable frames are rotatably connected to the sliding sleeves movably sleeved on the rotating shafts through bushings. The sliding sleeves are adapted to the shape and size of the rotating shafts, and the corresponding locking bolts of the rotating shafts are installed on the sliding sleeves.

[0008] Several sets of friction wheels and pressure wheels are movably sleeved on the two rotating shafts respectively, and the friction wheels are located upstream of the pressure wheels. A steam nozzle located between the friction wheels and the pressure wheels is also installed on the movable frame. A steam delivery pipe for connecting to a steam generator is installed on the steam nozzle.

[0009] The frame is also equipped with guide frames located upstream and downstream of the movable frame for guiding and limiting the cardboard.

[0010] Preferably, several support rollers are equidistantly arranged along the conveyor belt, and the friction wheel, steam nozzle and pressure roller are located at the top center of the conveyor belt, and the positions of the friction wheel, steam nozzle and pressure roller are all corresponding to the support rollers.

[0011] Preferably, the steam nozzle is mounted obliquely on the movable frame via a mounting bracket, and the lower end of the steam nozzle is inclined toward the downstream side of the conveyor belt.

[0012] Preferably, the distance between the lower end of the steam nozzle and the upper surface of the conveyor belt is not less than the distance between the bottom of the friction wheel and the upper surface of the conveyor belt, and the distance between the pressure wheel and the upper surface of the conveyor belt is less than the distance between the friction wheel and the upper surface of the conveyor belt.

[0013] Preferably, the movable frame is provided with a hand groove.

[0014] Preferably, the guide frame includes a guide plate, a connecting screw fixed on the guide plate, and a fixing seat fixed on the frame for mounting the connecting screw.

[0015] Preferably, the connecting screw includes a fixed screw fixed to the guide plate and a movable screw that can be detached and connected via an internal threaded sleeve.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] This invention uses friction wheels installed on a belt conveyor at the fold line of the cardboard to grind and cut a small amount of cardboard fibers. Hot steam is then sprayed onto this location through a steam nozzle to slightly moisten and soften it. Finally, pressure rollers are used to pre-compress the fold line of the cardboard, preventing the back of the cardboard from bursting due to excessive structural strength at the fold line during folding. This protects the carton structure, improves product yield, and solves the problem of bursting lines that easily occur when processing corrugated cardboard into cartons. Attached Figure Description

[0018] Figure 1 This is a top view of the overall structure of this utility model;

[0019] Figure 2 This is a top view of a partial structure at the corresponding position of the movable frame of this utility model;

[0020] Figure 3 This is a schematic diagram of the internal structure of this utility model;

[0021] Figure 4 This is a partial side sectional view of the structure at the corresponding position of the rotating shaft of this utility model;

[0022] Figure 5 This is a top view of the guide frame of this utility model;

[0023] Figure 6 This is a top view of the cardboard of this utility model.

[0024] In the diagram: 1. Belt conveyor; 101. Frame; 102. Conveyor belt; 2. Support roller; 3. Rotating shaft; 4. Drive motor; 5. Movable frame; 501. Hand groove; 6. Sliding sleeve; 7. Bushing; 8. Locking bolt; 9. Friction wheel; 10. Pressure roller; 11. Steam nozzle; 12. Steam conveying pipe; 13. Cardboard; 1301. Folding line; 1302. Cutting area; 14. Guide frame; 1401. Guide plate; 1402. Connecting screw; 14021. Fixed screw; 14022. Internal threaded sleeve; 14023. Movable screw; 1403. Fixed seat; 15. Mounting frame. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] like Figure 1-6 As shown, this utility model provides a technical solution: an automatic forming and folding line pre-compression control system, including a belt conveyor 1, and a guide frame 14 located upstream and downstream of the movable frame 5 for guiding and limiting the cardboard 13. The guide frame 14 includes a guide plate 1401, a connecting screw 1402 fixed on the guide plate 1401, and a fixing seat 1403 fixed on the frame 101 for installing the connecting screw 1402. The connecting screw 1402 includes a fixing screw 14021 fixed on the guide plate 1401 and a movable screw 14023 that can be detached and connected through an internal threaded sleeve 14022.

[0027] Multiple support rollers 2 are installed on the frame 101 of the belt conveyor 1, which support the bottom of the conveyor belt 102. Two rotating shafts 3 are also installed on the frame 101, which are located above the conveyor belt 102 and parallel to the support rollers 2. The rotating shaft 3 near the upstream side of the conveyor belt 102 is connected to the drive motor 4 installed on the frame 101.

[0028] The rotating shaft 3 is a hexagonal shaft. Several movable frames 5 are movably sleeved on both rotating shafts 3. The movable frames 5 are provided with hand grooves 501. The movable frames 5 are rotatably connected to the sliding sleeves 6 movably sleeved on the rotating shafts 3 through the bushings 7. The shape and size of the sliding sleeves 6 are adapted to the rotating shafts 3, and the corresponding locking bolts 8 of the rotating shafts 3 are installed on the sliding sleeves 6.

[0029] Several sets of friction wheels 9 and pressure wheels 10 are movably sleeved on the two rotating shafts 3 respectively, and the friction wheels 9 are located upstream of the pressure wheels 10. A steam nozzle 11 located between the friction wheels 9 and the pressure wheels 10 is also installed on the movable frame 5. A steam delivery pipe 12 for connecting to the steam generator is installed on the steam nozzle 11.

[0030] Several support rollers 2 are equidistantly arranged along the conveyor belt 102. Friction wheel 9, steam nozzle 11 and pressure roller 10 are located at the top center of the conveyor belt 102, and the friction wheel 9, steam nozzle 11 and pressure roller 10 are all corresponding to the positions of the support rollers 2. The steam nozzle 11 is obliquely installed on the movable frame 5 through the mounting frame 15, and the lower end of the steam nozzle 11 is obliquely arranged towards the downstream side of the conveyor belt 102.

[0031] The distance between the lower end of the steam nozzle 11 and the upper surface of the conveyor belt 102 is not less than the distance between the bottom of the friction wheel 9 and the upper surface of the conveyor belt 102, and the distance between the pressure wheel 10 and the upper surface of the conveyor belt 102 is less than the distance between the friction wheel 9 and the upper surface of the conveyor belt 102.

[0032] Working principle:

[0033] When pre-pressing the transverse fold line 1301 of the cardboard 13, the position of the guide frame 14 is adjusted according to the longitudinal width of the cardboard 13 so that it guides and limits the conveying of the cardboard 13. According to the position of the transverse fold line 1301, the position of the movable frame 5 is adjusted by loosening the locking bolt 8 so that the friction wheel 9, the pressure wheel 10 and the steam nozzle 11 correspond to the position of the transverse fold line 1301.

[0034] A small amount of paperboard 13 fibers are cut by the rotation of the friction wheel 9, and hot steam is sprayed onto the position through the steam nozzle 11 to slightly moisten and soften it. Then, the pressure roller 10 is used to squeeze and pre-press the transverse fold line 1301 position of the paperboard 13 to avoid the back of the fold line 1301 position being too strong due to excessive structural strength during folding.

[0035] The pre-pressing method for the longitudinal fold line 1301 of the cardboard 13 is the same as the pre-pressing method for the transverse fold line 1301. Simply rotate the cardboard 13 horizontally by 90°, readjust the position of the guide frame 14 according to the longitudinal width of the cardboard 13 after rotation, readjust the position of the movable frame 5 according to the position of the longitudinal fold line 1301, and then repeat the above steps.

[0036] It should be noted that, in this document, terms such as “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0037] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An automatic forming and folding line pre-compression control system, comprising a belt conveyor (1), characterized in that: The belt conveyor (1) has multiple support rollers (2) mounted on its frame (101) that support the bottom of the conveyor belt (102). The frame (101) also has two rotating shafts (3) located above the conveyor belt (102) and parallel to the support rollers (2). The rotating shaft (3) near the upstream side of the conveyor belt (102) is connected to the drive motor (4) mounted on the frame (101). The rotating shaft (3) is a hexagonal shaft. Several movable frames (5) are movably sleeved on both rotating shafts (3). The movable frames (5) are rotatably connected to the sliding sleeves (6) movably sleeved on the rotating shafts (3) through the bushings (7). The sliding sleeves (6) are adapted to the shape and size of the rotating shafts (3), and the corresponding locking bolts (8) of the rotating shafts (3) are installed on the sliding sleeves (6). Several sets of friction wheels (9) and pressure wheels (10) are movably sleeved on the two rotating shafts (3), and the friction wheels (9) are located upstream of the pressure wheels (10). A steam nozzle (11) located between the friction wheels (9) and the pressure wheels (10) is also installed on the movable frame (5). A steam delivery pipe (12) for connecting to the steam generator is installed on the steam nozzle (11). The frame (101) is also provided with guide frames (14) located upstream and downstream of the movable frame (5) for guiding and limiting the cardboard (13).

2. The automatic forming and folding line pre-pressing control system according to claim 1, characterized in that: Several support rollers (2) are equidistantly arranged along the conveyor belt (102). The friction wheel (9), steam nozzle (11) and pressure roller (10) are located at the top center of the conveyor belt (102), and the friction wheel (9), steam nozzle (11) and pressure roller (10) are all corresponding to the positions of the support rollers (2).

3. The automatic forming and folding line pre-pressing control system according to claim 1, characterized in that: The steam nozzle (11) is mounted obliquely on the movable frame (5) via the mounting bracket (15), and the lower end of the steam nozzle (11) is inclined toward the downstream side of the conveyor belt (102).

4. The automatic forming and folding line pre-pressing control system according to claim 1, characterized in that: The distance between the lower end of the steam nozzle (11) and the upper surface of the conveyor belt (102) is not less than the distance between the bottom of the friction wheel (9) and the upper surface of the conveyor belt (102), and the distance between the pressure wheel (10) and the upper surface of the conveyor belt (102) is less than the distance between the friction wheel (9) and the upper surface of the conveyor belt (102).

5. The automatic forming and folding line pre-pressing control system according to claim 1, characterized in that: The movable frame (5) is provided with a hand groove (501).

6. The automatic forming and folding line pre-pressing control system according to claim 1, characterized in that: The guide frame (14) includes a guide plate (1401), a connecting screw (1402) fixed on the guide plate (1401), and a fixing seat (1403) fixed on the frame (101) for mounting the connecting screw (1402).

7. The automatic forming and folding line pre-pressing control system according to claim 6, characterized in that: The connecting screw (1402) includes a fixed screw (14021) fixed on the guide plate (1401) and a movable screw (14023) that can be detached and connected through an internal threaded sleeve (14022).

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