Automatic paper bag edge folding device

Abstract

The application discloses a kind of paper bag automatic edge folding device, belongs to the technical field of edge folding device.A kind of paper bag automatic edge folding device, including machine body, the machine body one end is equipped with feeding mechanism, the machine body is fixedly connected with first connecting frame away from feeding mechanism one end, the first connecting frame top is successively equipped with second edge folding mechanism, first edge folding mechanism, transmission roller and pressing mechanism, the second edge folding mechanism is located close to machine body one end, the first connecting frame inner wall top is fixedly connected with connecting plate, the connecting plate is below transmission roller and pressing mechanism, the first edge folding mechanism and second edge folding mechanism are mirror image settings, the first edge folding mechanism includes second connecting frame and edge folding component.The application effectively solves the problem that the existing paper bag edge folding device has excessive tension at one end of paper plastic bag when edge folding, which causes paper plastic bag to wrinkle, affects the edge folding effect, and is not convenient for edge folding of paper bags of different sizes and specifications, and the device has poor applicability.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of folding device, in particular to a kind of paper bag automatic folding device. BACKGROUND

[0002] There are many varieties of paper bags, many varieties of paper materials, and many styles, such as wax paper bags, fertilizer bags, film-coated paper bags, paper-plastic bags, etc. Among them, paper-plastic bags, also known as three-in-one composite paper bags, are made of plastic and kraft paper. The plastic layer is made of PP polypropylene as the base material, and the kraft paper is made of exquisite composite special kraft paper. The two are bonded by hot film coating of molten plastic. The kraft paper film cloth is formed into a bag, and then processed and sewn into a three-in-one paper-plastic bag, commonly used for packaging solid particle chemical raw materials.

[0003] During production, the side of the paper-plastic bag needs to be folded, which requires the paper bag seal to be folded. When folding the paper-plastic bag, the end of the paper-plastic bag may be wrinkled due to excessive tension, affecting the folding effect. In addition, the existing paper bag automatic folding device is not convenient for folding paper bags of different sizes and specifications, and the device has poor applicability. SUMMARY

[0004] The purpose of the present application is to solve the problem of excessive tension at one end of the paper-plastic bag during folding, which causes wrinkles in the paper-plastic bag, affecting the folding effect, and the inconvenience of folding paper bags of different sizes and specifications, and the poor applicability of the device.

[0005] To achieve the above purpose, the present application adopts the following technical scheme:

[0006] A paper bag automatic folding device, comprising a machine body, a feeding mechanism is installed at one end of the machine body, a first connecting frame is fixedly connected at the end of the machine body away from the feeding mechanism, a second folding mechanism, a first folding mechanism, a transmission roller and a pressing mechanism are installed in sequence at the top of the first connecting frame, the second folding mechanism is located near the end of the machine body, a connecting plate is fixedly connected to the top of the inner wall of the first connecting frame, the connecting plate is located below the transmission roller and the pressing mechanism, and the first folding mechanism and the second folding mechanism are mirror image arranged.

[0007] The first folding mechanism comprises a second connecting frame and a folding assembly, the folding assembly is located on the side of the second connecting frame away from the second folding mechanism, the second connecting frame is fixedly connected to the top of the first connecting frame, the bottom of the second connecting frame is fixedly connected with a second motor and a third motor, the output end of the second motor is fixedly connected with a second ball screw, the moving end of the second ball screw is fixedly connected with a first guide arm, the bottom of the first guide arm near the third motor is fixedly connected with a first connecting arm, a first guide disc is rotatably installed on the first connecting arm, and the first guide disc is inclinedly arranged.

[0008] The output end of the third motor is fixedly connected with a third ball screw, the moving end of the third ball screw is fixedly connected with a second guide arm, the bottom of the second guide arm near the first guide disc is fixedly connected with a second connecting arm, a second guide disc is rotatably installed on the second connecting arm, and the second guide disc is inclinedly arranged.

[0009] The folding assembly comprises a fixed plate, the fixed plate is fixedly connected to the side of the first connecting frame, the top of the fixed plate is fixedly connected with a hydraulic cylinder, the telescopic end of the hydraulic cylinder is fixedly connected with a fixed arm, and a pressing disc is rotatably installed on the end of the fixed arm away from the hydraulic cylinder.

[0010] Preferably, the feeding mechanism comprises a mounting frame, the mounting frame is fixedly connected to the machine body, first motors are fixedly connected to the two sides of the mounting frame, first ball screws are fixedly connected to the output ends of the first motors, clamping arms are fixedly connected to the moving ends of the first ball screws, a mounting roller is installed between the two clamping arms, and a tensioning roller is installed on the top of the mounting frame.

[0011] Preferably, the pressing mechanism comprises two mounting seats, first connecting rods are rotatably installed on the two mounting seats, second connecting rods are rotatably installed on the top of the first connecting rods, electric telescopic rods are rotatably installed on the end of the second connecting rods away from the first connecting rods, rotating seats are rotatably installed on the end of the electric telescopic rods away from the second connecting rods, and the two rotating seats are rotatably installed on the top of the two mounting seats.

[0012] Preferably, a connecting shaft is fixedly connected between the two first connecting rods, a plurality of pressing assemblies are installed on the connecting shaft, and the plurality of pressing assemblies are equidistantly distributed on the connecting shaft.

[0013] Preferably, the pressing assembly comprises a fixed block, the fixed block is installed on the connecting shaft through bolts, a protective cover and a pressing wheel are installed on one side of the fixed block, the protective cover is fixedly connected to the top of the fixed block, the protective cover is rotatably installed on the fixed block, and the pressing wheel is located below the protective cover.

[0014] Compared with the prior art, the paper bag automatic edge folding device has the following beneficial effects:

[0015] 1. The present application is provided by the cooperation of the feeding mechanism, the first edge folding mechanism and the second edge folding mechanism, etc. The paper roll on the installation roller is clamped, which facilitates clamping of paper rolls of different specifications, making the paper roll rotate more stably in subsequent edge folding. When folding the edge, the second motor and the third motor are controlled to work, the second motor and the third motor output ends rotate to drive the first guide arm and the second guide arm on the moving end of the second ball screw and the third ball screw to move, the first guide arm and the second guide arm move to drive the first connecting arm and the second connecting arm to move, so that the first guide disc and the second guide disc are adjusted in position, and the second edge folding mechanism is the same, which facilitates edge folding treatment of paper bags of different specifications.

[0016] 2. The present application is provided by the cooperation of the pressing mechanism and the transmission roller, etc. When the paper bag with folded edge enters the transmission roller, it is pressed by the transmission roller, and then enters the pressing mechanism. The electric telescopic rod on the pressing mechanism works, the telescopic end of the electric telescopic rod drives the second connecting rod and the first connecting rod on the second connecting rod to rotate, the first connecting rod drives the connecting shaft and the pressing assembly on the connecting shaft to rotate, which facilitates adjusting the pressure on the paper bag, avoids excessive tension on one end of the paper plastic bag during edge folding, and causes the paper plastic bag to wrinkle, affecting the edge folding effect. BRIEF DESCRIPTION OF DRAWINGS

[0017] Fig. 1 The present application provides a kind of overall structure schematic diagram of paper bag automatic edge folding device;

[0018] Fig. 2 The present application provides a kind of feeding mechanism structure schematic diagram of paper bag automatic edge folding device;

[0019] Fig. 3 The present application provides a kind of first edge folding mechanism structure schematic diagram of paper bag automatic edge folding device;

[0020] Fig. 4 The present application provides a kind of edge folding assembly structure schematic diagram of paper bag automatic edge folding device;

[0021] Fig. 5 The present application provides a kind of pressing mechanism structure schematic diagram of paper bag automatic edge folding device;

[0022] Fig. 6 The present application provides a kind of pressing assembly structure schematic diagram of paper bag automatic edge folding device.

[0023] Figure number explanation: 1, body; 2, feeding mechanism; 201, mounting bracket; 202, first motor; 203, first ball screw; 204, clamping arm; 205, mounting roller; 206, tensioning roller; 3, first connecting bracket; 301, connecting plate; 4, first flanging mechanism; 401, second connecting bracket; 402, second motor; 403, second ball screw; 404, first guide arm; 405, first connecting arm; 4051, first guide disc; 406, third motor; 407, third ball screw; 408, second guide arm; 409, second connecting arm; 4091, second guide disc; 410, flanging assembly; 4101, fixed plate; 4102, hydraulic cylinder; 4103, fixed arm; 4104, pressing disc; 5, transmission roller; 6, pressing mechanism; 601, mounting seat; 602, first connecting rod; 603, second connecting rod; 604, electric telescopic rod; 605, rotating seat; 606, connecting shaft; 607, pressing assembly; 6071, fixed block; 6072, protective cover; 6073, pressing wheel; 7, second flanging mechanism. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, not all the embodiments.

[0025] Embodiment 1:

[0026] Please refer to Figs. 1-3 A paper bag automatic flanging device, including body 1, the body 1 one end is installed with feeding mechanism 2, the body 1 is fixedly connected with first connecting bracket 3 away from feeding mechanism 2 one end, first connecting bracket 3 top is installed with second flanging mechanism 7, first flanging mechanism 4, transmission roller 5 and pressing mechanism 6 in proper order, second flanging mechanism 7 is located close to body 1 one end, connecting roller is installed between second flanging mechanism 7 and body 1, and the height of connecting roller is higher than that of transmission roller 5, the top of the inner wall of first connecting bracket 3 is fixedly connected with connecting plate 301, connecting plate 301 is located below transmission roller 5 and pressing mechanism 6, first flanging mechanism 4 and second flanging mechanism 7 are mirror image setting;

[0027] The first folding mechanism 4 comprises a second connecting frame 401 and a folding assembly 410. The folding assembly 410 is located on the side of the second connecting frame 401 away from the second folding mechanism 7. The second connecting frame 401 is fixedly connected to the top of the first connecting frame 3. The bottom of the second connecting frame 401 is fixedly connected with a second motor 402 and a third motor 406. The output end of the second motor 402 is fixedly connected with a second ball screw 403. The moving end of the second ball screw 403 is fixedly connected with a first guide arm 404. The bottom of the side of the first guide arm 404 close to the third motor 406 is fixedly connected with a first connecting arm 405. The first connecting arm 405 is rotatably installed with a first guide disc 4051. The first guide disc 4051 is inclinedly arranged.

[0028] The output end of the third motor 406 is fixedly connected with a third ball screw 407. The moving end of the third ball screw 407 is fixedly connected with a second guide arm 408. The bottom of the side of the second guide arm 408 close to the first guide disc 4051 is fixedly connected with a second connecting arm 409. The second connecting arm 409 is rotatably installed with a second guide disc 4091. The second guide disc 4091 is inclinedly arranged. The inclination angle of the second guide disc 4091 and the first guide disc 4051 is complementary.

[0029] The folding assembly 410 comprises a fixed plate 4101. The fixed plate 4101 is fixedly connected to the side of the first connecting frame 3. The top of the fixed plate 4101 is fixedly connected with a hydraulic cylinder 4102. The extending end of the hydraulic cylinder 4102 is fixedly connected with a fixed arm 4103. The end of the fixed arm 4103 away from the hydraulic cylinder 4102 is rotatably installed with a pressing disc 4104. The pressing disc 4104 is inclinedly arranged. The inclination of the pressing disc 4104 is between 10° and 30°.

[0030] The feeding mechanism 2 comprises a mounting frame 201. The mounting frame 201 is fixedly connected to the machine body 1. The two sides of the mounting frame 201 are fixedly connected with a first motor 202. The output end of the first motor 202 is fixedly connected with a first ball screw 203. The moving end of the first ball screw 203 is fixedly connected with a clamping arm 204. The two clamping arms 204 are installed with a mounting roller 205. The top of the mounting frame 201 is installed with a tensioning roller 206.

[0031] In use, the user installs the paper roll with the required folding edge on the installation roller 205, moves the clamping arm 204 on the moving end of the first ball screw 203 through the operation of the first motor 202, clamps the paper roll on the installation roller 205, facilitates clamping of paper rolls of different specifications, makes the paper roll rotate more stably in subsequent edge folding, and then the paper roll passes through the inside of the body 1, the top of the connecting roller, the second edge folding mechanism 7 and the first edge folding mechanism 4 in sequence, wherein when passing through the first edge folding mechanism 4, between the first guide disc 4051 and the second guide disc 4091, the second edge folding mechanism 7 is the same as the first edge folding mechanism 4, and then passes through the bottom of the pressing disc 4104, and then enters the transmission roller 5 and the pressing mechanism 6.

[0032] In the edge folding process, the second motor 402 and the third motor 406 are controlled to work, the first guide arm 404 and the second guide arm 408 on the moving end of the second ball screw 403 and the third ball screw 407 are moved respectively by the output end of the second motor 402 and the third motor 406, the first guide arm 404 and the second guide arm 408 are moved to drive the first connecting arm 405 and the second connecting arm 409 to move respectively, so that the first guide disc 4051 and the second guide disc 4091 are adjusted in position, and the second edge folding mechanism 7 is the same, which is convenient for edge folding treatment of paper bags of different specifications, and then the transmission roller 5 works to convey, when the paper sheet enters the body 1, the paper sheet is raised to a certain height through the connecting roller, one side of the paper sheet is guided and rotated through the first guide disc 4051 and the second guide disc 4091, and the paper sheet is pressed and guided through the pressing disc 4104, and the other side of the paper sheet is processed through the second edge folding mechanism 7, and then the transmission roller 5 and the pressing mechanism 6 are used to press the edge of the folded paper bag.

[0033] Embodiment 2:

[0034] Please refer to Figs. 3-6 , which is different from embodiment 1;

[0035] The pressing mechanism 6 comprises two mounting seats 601, a first connecting rod 602 is rotatably installed on each of the two mounting seats 601, a second connecting rod 603 is rotatably installed on the top of each of the first connecting rods 602, an electric telescopic rod 604 is rotatably installed on the end of each of the second connecting rods 603 away from the first connecting rod 602, a rotating seat 605 is rotatably installed on the end of each of the two electric telescopic rods 604 away from the second connecting rod 603, and the two rotating seats 605 are rotatably installed on the top of the two mounting seats 601 respectively.

[0036] A connecting shaft 606 is fixedly connected between the two first connecting rods 602, a plurality of pressing assemblies 607 are installed on the connecting shaft 606, and the plurality of pressing assemblies 607 are equidistantly distributed on the connecting shaft 606, which facilitates adjusting the number of pressing assemblies 607 for paper bags of different specifications.

[0037] The pressing assembly 607 comprises a fixing block 6071 which is mounted on the connecting shaft 606 through bolts, and a protective cover 6072 and a pressing wheel 6073 are mounted on one side of the fixing block 6071, the protective cover 6072 is fixedly connected to the top of the fixing block 6071, the protective cover 6072 is rotatably mounted on the fixing block 6071, and the pressing wheel 6073 is located below the protective cover 6072.

[0038] When the paper bag with folded edges enters the transmission roller 5, the transmission roller 5 is pressed, and then enters the pressing mechanism 6, and the electric telescopic rod 604 on the pressing mechanism 6 works, the telescopic end of the electric telescopic rod 604 drives the second connecting rod 603 and the first connecting rod 602 on the second connecting rod 603 to rotate, the first connecting rod 602 drives the connecting shaft 606 and the pressing assembly 607 on the connecting shaft 606 to rotate, so as to adjust the pressure on the paper bag, avoid that the paper plastic bag has too much tension at one end when the edge is folded, and cause the paper plastic bag to wrinkle, and affect the folding effect.

[0039] The above is only the preferred embodiment of the present application, and the protection scope of the present application is not limited to the above-mentioned embodiments, and any technical scheme falling within the concept of the present application shall fall within the protection scope of the present application. It should be noted that for ordinary skilled persons in the art, some improvements and decorations without departing from the principle of the present application shall also be considered as the protection scope of the present application.

[0040] In the description of the present application, it should be understood that the terms "upper", "lower", "left", "right" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, a particular orientation and operation, therefore, it cannot be understood as a limitation on the present application. In addition, "first", "second" is only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include one or more features. In the description of the present application, unless otherwise specified, the meaning of "multiple" is two or more.

[0041] In the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounting", "connecting", "connecting" and the like should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication between two elements. For ordinary skilled persons in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0042] The above has been described in detail one embodiment of the present application, but the content is only the preferred embodiment of the present application, cannot be considered for limiting the scope of the present application. Any equivalent changes and improvements made in the scope of the present application, should still belong to the scope of the present application.

Claims

1. An automatic paper bag folding device, comprising a body (1), characterized in that: The machine body (1) is equipped with a feeding mechanism (2) at one end. The machine body (1) is fixedly connected to a first connecting frame (3) at the end away from the feeding mechanism (2). The first connecting frame (3) is sequentially equipped with a second folding mechanism (7), a first folding mechanism (4), a transmission roller (5), and a pressing mechanism (6). The second folding mechanism (7) is located at the end close to the machine body (1). A connecting plate (301) is fixedly connected to the top of the inner wall of the first connecting frame (3). The connecting plate (301) is located below the transmission roller (5) and the pressing mechanism (6). The first folding mechanism (4) and the second folding mechanism (7) are mirror images of each other. The first folding mechanism (4) includes a second connecting frame (401) and a folding assembly (410). The folding assembly (410) is located on the side of the second connecting frame (401) away from the second folding mechanism (7). The second connecting frame (401) is fixedly connected to the top of the first connecting frame (3). A second motor (402) and a third motor (406) are fixedly connected to the bottom of the second connecting frame (401). A second ball screw (403) is fixedly connected to the output end of the second motor (402). A first guide arm (404) is fixedly connected to the moving end of the second ball screw (403). A first connecting arm (405) is fixedly connected to the bottom of the first guide arm (404) near the third motor (406). A first guide disk (4051) is rotatably mounted on the first connecting arm (405). The first guide disk (4051) is inclined. A third ball screw (407) is fixedly connected to the output end of the third motor (406). A second guide arm (408) is fixedly connected to the moving end of the third ball screw (407). A second connecting arm (409) is fixedly connected to the bottom of the second guide arm (408) near the first guide disk (4051). A second guide disk (4091) is rotatably mounted on the second connecting arm (409). The second guide disk (4091) is inclined, and the inclination angles of the second guide disk (4091) and the first guide disk (4051) are complementary. The folding assembly (410) includes a fixing plate (4101), which is fixedly connected to the side of the first connecting frame (3). A hydraulic cylinder (4102) is fixedly connected to the top of the fixing plate (4101). A fixing arm (4103) is fixedly connected to the telescopic end of the hydraulic cylinder (4102). A pressing plate (4104) is rotatably installed on the end of the fixing arm (4103) away from the hydraulic cylinder (4102). The pressing plate (4104) is inclined.

2. The automatic paper bag folding device according to claim 1, characterized in that: The feeding mechanism (2) includes a mounting frame (201), which is fixedly connected to the machine body (1). A first motor (202) is fixedly connected to both sides of the mounting frame (201). A first ball screw (203) is fixedly connected to the output end of the first motor (202). A clamping arm (204) is fixedly connected to the moving end of the first ball screw (203). An installation roller (205) is installed between the two clamping arms (204). A tension roller (206) is installed on the top of the mounting frame (201).

3. The automatic paper bag folding device according to claim 1, characterized in that: The clamping mechanism (6) includes two mounting seats (601), on which a first connecting rod (602) is rotatably mounted. A second connecting rod (603) is rotatably mounted on the top of each of the first connecting rods (602). An electric telescopic rod (604) is rotatably mounted on the end of each of the second connecting rods (603) away from the first connecting rod (602). A rotating seat (605) is rotatably mounted on the end of each of the two electric telescopic rods (604) away from the second connecting rod (603). The two rotating seats (605) are respectively rotatably mounted on the top of the two mounting seats (601).

4. The automatic paper bag folding device according to claim 3, characterized in that: A connecting shaft (606) is fixedly connected between the two first connecting rods (602). Multiple clamping components (607) are installed on the connecting shaft (606) and are equidistantly distributed on the connecting shaft (606).

5. The automatic paper bag folding device according to claim 4, characterized in that: The clamping assembly (607) includes a fixing block (6071), which is bolted to the connecting shaft (606). A protective cover (6072) and a clamping wheel (6073) are installed on one side of the fixing block (6071). The protective cover (6072) is fixedly connected to the top of the fixing block (6071) and is rotatably mounted on the fixing block (6071). The clamping wheel (6073) is located below the protective cover (6072).

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