Novel valve port bag valve port waste hot cutting mechanism

Abstract

The utility model discloses a novel valve bag valve mouth waste hot cutting mechanism relates to bag making equipment technical field, it includes the support seat of installation on the frame, and the support seat has the hot knife that can be used for cutting, a rotating shaft of fixed with a plurality of cams is horizontally arranged on the support seat, and the hot knife is connected with the cam sleeve of the cam outside sleeve, when the bag body after the mouth is dragged to the cutter seat of support seat and is set by the removal bag component, the rotating shaft can be driven to rotate by motor, to make the hot knife under the cooperation of cam and cam sleeve and descend and cut the front end of bag body. Compared with the prior art, the design can realize the quick lifting of hot knife through the cooperation of motor drive cam and cam sleeve, thereby improving the cutting efficiency of bag body.

Description

Technical Field

[0001] This utility model relates to a heat-cutting mechanism, and more particularly to a novel heat-cutting mechanism for waste material from the valve opening of a valve bag, belonging to the technical field of bag-making equipment. Background Technology

[0002] Valve bags are packaging bags used for packaging special materials such as chemical powders and fertilizers. As shown in the patent with publication number "CN212288951U", the manufacturing process of valve bags requires the use of a folding plate to fold a slanted fold on one side of the bag opening, and at the same time, the excess part at the front end is cut off before the bag opening can be sealed. In order to improve the processing efficiency of valve bags, the applicant has also designed a new type of valve bag valve opening waste heat cutting mechanism and filed the following application. Utility Model Content

[0003] To address the shortcomings of the existing technology, this utility model provides a novel valve pocket valve port waste heat cutting mechanism.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a novel hot-cutting mechanism for valve bag valve opening waste, including a support seat mounted on a frame, the support seat having a hot knife for cutting; a rotating shaft with several cams fixed on it is arranged horizontally on the support seat, the hot knife is connected to a cam sleeve sleeved on the outside of the cam, when the bag body after folding is dragged to the knife holder on the support seat by the bag transfer assembly, the rotating shaft can be driven to rotate by a motor, so that the hot knife moves down with the help of the cam and the cam sleeve to cut the front end of the bag body.

[0005] Preferably, the support base is slidably provided with a lifting seat via a slide rail and a slider, and the lifting seat is connected to the cam sleeve and the hot knife by connecting rods provided on its upper and lower sides respectively.

[0006] Preferably, the cam sleeve is hinged to the connecting rod with a hinge joint on the top of the lifting seat via a connecting arm with a first fisheye buckle at its bottom.

[0007] Preferably, the lifting seat is also equipped with an upper pressure roller, which can move down with the lifting seat to clamp the front end of the bag together with the lower pressure roller provided at the front end of the support seat and the cut-off part of the bag outward.

[0008] Preferably, the upper pressure roller is connected to guide rods at both ends by second fisheye buckles. The guide rods slide into the guide sleeves fixed on the front mounting plate of the lifting seat, and the top of the guide rods has a retaining ring that can abut against the guide sleeves.

[0009] Preferably, the upper pressure roller is equipped with a plurality of pressure rollers forming a rough surface, which together with the lower pressure roller clamp the front end of the bag body.

[0010] Preferably, an opening groove is formed on one side of the support base, through which the front end of the bag to be cut can pass.

[0011] Preferably, the bag transfer assembly has two sets of synchronous belts that fit together, and the two sets of synchronous belts can jointly clamp the tail of the bag to drag and move the bag.

[0012] Preferably, the bag transfer assembly further includes a pressure block on the frame, which allows the timing belts to abut against the pressure block when the tail of the bag is clamped between the two timing belts.

[0013] This utility model has at least the following advantages: 1. By using a motor-driven cam and cam sleeve, the hot knife can be raised and lowered quickly, thereby improving the cutting efficiency of the bag. 2. The cam sleeve and the lifting seat are hinged together by a fisheye buckle and a hinge joint, which can prevent the cam sleeve from interfering with the lifting seat when it rotates. 3. The front end of the bag is held by upper and lower pressure rollers so that the hot knife can perform a stable cutting action. Attached Figure Description

[0014] Figure 1 This is an installation diagram of this utility model.

[0015] Figure 2 yes Figure 1 Enlarged diagram of point A in the middle.

[0016] Figure 3 yes Figure 1 A top view diagram.

[0017] Figure 4 This is a schematic diagram of the structure of this utility model.

[0018] Figure 5 yes Figure 4 A diagram of the back side.

[0019] Figure 6 This is a schematic diagram of the bag transfer assembly.

[0020] In the diagram, 1-frame; 101-folding plate; 102-pallet; 2-support seat; 201-opening slot; 202-slide rail; 203-rotating shaft; 204-cam; 205-cam sleeve; 206-connecting arm; 216-first fisheye buckle; 207-motor; 3-bag transfer assembly; 4-lifting seat; 401-slider; 402-connecting rod; 412-hinge joint; 403-mounting plate; 404-guide sleeve; 5-hot knife; 6-knife holder; 7-upper pressure roller; 701-guide rod; 711-second fisheye buckle; 721-retaining ring; 702-pressure roller; 8-lower pressure roller; 9-bag transfer assembly; 901-synchronous belt; 902-pressure block seat; 912-pressure block. Detailed Implementation

[0021] 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.

[0022] like Figures 1-6 As shown: A novel valve bag valve opening waste hot cutting mechanism includes a support base 2, which is mounted on a frame 1. The support base 2 is adjacent to the folding mechanism of the frame 1 used to fold the bag body. After the bag head is folded by a rotatable folding plate 101 (the rest of the bag making machine is not described in detail here), the bag transfer assembly 9 can drag the bag body. At this time, the bag head will pass through an opening groove 201 formed on the side of the support base 2 and enter the support base 2. The hot knife 5 set on the support base 2 can move downward to cut the front end of the bag body.

[0023] Furthermore, slide rails 202 are fixed to the left and right inner walls of the support base 2, and a lifting seat 4 is mounted on the slide rails 202 with sliders 401 on both sides of itself. At the same time, a rotatable shaft 203 is horizontally mounted on the top of the support base 2. A cam 204, which is eccentrically fixed on the shaft 203, is rotatably sleeved with a cam sleeve 205 on its outer side. The connecting arm 206 at the bottom of the cam sleeve 205 is hinged to the connecting rod 402 with a hinge joint 412 on the top of the lifting seat 4 through a first fisheye buckle 216. When the shaft 203 is driven to rotate by the motor 207, the movable cooperation between the cam 204 and the cam sleeve 205 allows the lifting seat 4 to move up and down in the support base 2 accordingly. The hot knife 5, which is mounted on the bottom of the lifting seat 4 with another connecting rod 402, can thus move closer to or away from the bag body to perform the corresponding cutting action.

[0024] Specifically, the support base 2 has a knife holder 6 fixed on its bottom rear side corresponding to the hot knife 5. The top surface of the knife holder 6 is close to the opening slot 201 on the side of the support base 2. When the bag is dragged to the support base 2 by the bag transfer assembly 9, most of it is placed on the tray 102 of the frame 1, and the head to be cut is located on the knife holder 6.

[0025] Furthermore, if the bag head is not fixed during cutting, the bag may shift or deviate, affecting the cutting effect. Therefore, in this design, the support 2 is also equipped with a set of pressure rollers to clamp the front end of the bag. Figures 4-5As shown, the group of pressure rollers includes an upper pressure roller 7 and a lower pressure roller 8. The lower pressure roller 7 is directly installed on the lower side of the support base 2 and is located in front of the aforementioned knife holder 6. The upper pressure roller 7 has guide rods 701 connected to both ends of itself through second fisheye buckles 711. The guide rods 701 slide through the guide sleeves 404 fixed on the front mounting plate 403 of the aforementioned lifting base 4. The retaining rings 721 installed at the top of the guide rods 701 can abut against the guide sleeves 404 to prevent the upper pressure roller 7 from separating from the lifting base 4. When the lifting base 4 moves the hot knife 5 downward, the upper pressure roller 7 can also move downward synchronously, thereby clamping the bag head with the lower pressure roller 8 through several pressure rollers 702 with rough surfaces. After the hot knife 5 completes the cutting action, the lower pressure roller 8 can rotate under the drive of the driving element (not shown in the figure) to discharge the cut waste material outward.

[0026] Furthermore, several sets of the bag-moving assembly 9 used for dragging the bag body are arranged in parallel on the rear side of the frame 1. The bag-moving assembly 9 includes two sets of synchronous belts 901 arranged vertically and attached to each other. The tail of the bag body is clamped by the two sets of synchronous belts 901. When the synchronous belts 901 are running, the bag body can be dragged to the cutter holder 6 to wait for cutting, and after cutting, it can be dragged to the next station for other processes.

[0027] Specifically, since the two sets of synchronous belts 901 need to clamp the bag body in order to drag it, a pressure block seat 902 with several pressure blocks 912 is also provided on the frame 1. The pressure block seat 902 is located in the upper set of synchronous belts 901. The pressure blocks 912 have a certain gap with the lower side of the synchronous belt 901. When the bag body is clamped between the two sets of synchronous belts 901, the upper synchronous belt 901 will move upward slightly, thereby abutting against the pressure blocks 912. The pressure blocks 912 can thus restrict the synchronous belts 901 from clamping the bag body in the opposite direction, so that the bag body can be dragged and moved.

[0028] The operation of this design is roughly as follows: First, the bag body is dragged to the support base after the folding is completed at the previous station; second, the motor drives the cam to rotate, causing the hot knife and the upper pressure roller to move down synchronously; third, the upper and lower pressure rollers press down on the head of the bag body together, and the hot knife cuts it; next, the lower pressure roller is driven to rotate to discharge the cut waste material; finally, the hot knife and the upper pressure roller return to their original positions, and the bag body is dragged to the next station.

[0029] It is understood that this utility model has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. Furthermore, under the teachings of this utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of this utility model.

Claims

1. A novel valve bag valve port waste hot cutting mechanism, comprising a support base (2) mounted on a frame (1), the support base (2) having a hot blade (5) for cutting, characterized in that: A rotating shaft (203) with several cams (204) fixed on it is horizontally arranged on the support base (2). The hot knife (5) is connected to the cam sleeve (205) sleeved on the outside of the cam (204). When the bag body after folding is dragged to the knife holder (6) set on the support base (2) by the bag transfer assembly (9), the rotating shaft (203) can be driven to rotate by the motor (207) so that the hot knife (5) moves down to cut the front end of the bag body with the help of the cooperation of the cam (204) and the cam sleeve (205).

2. The novel valve bag valve port waste heat cutting mechanism as described in claim 1, characterized in that: The support base (2) is slidably provided with a lifting seat (4) via a slide rail (202) and a slider (401). The lifting seat (4) is connected to the cam sleeve (205) and the hot knife (5) respectively by the connecting rods (402) set on its upper and lower sides.

3. The novel valve bag valve port waste heat cutting mechanism as described in claim 2, characterized in that: The cam sleeve (205) is hinged to the connecting rod (402) with a hinge joint (412) on the top of the lifting seat (4) via a connecting arm (206) having a first fisheye buckle (216) at its bottom.

4. A novel valve bag valve port waste heat cutting mechanism as described in claim 2, characterized in that: The lifting seat (4) is also equipped with an upper pressure roller (7). The upper pressure roller (7) can move down with the lifting seat (4) to clamp the front end of the bag together with the lower pressure roller (8) provided at the front end of the support seat (2) and the knife seat (6). The lower pressure roller (8) can rotate to send the cut-off part of the bag outward.

5. A novel valve bag valve port waste heat cutting mechanism as described in claim 4, characterized in that: The upper pressure roller (7) has guide rods (701) connected to both ends by second fisheye buckles (711). The guide rods (701) slide into the guide sleeves (404) fixed on the front mounting plate (403) of the lifting seat (4). The top of the guide rods (701) has a retaining ring (721) that can abut against the guide sleeves (404).

6. A novel valve pocket valve port waste heat cutting mechanism as described in claim 4, characterized in that: The upper pressure roller (7) is equipped with several pressure rollers (702) that form a rough surface, which together with the lower pressure roller (8) clamp the front end of the bag body.

7. A novel valve bag valve port waste heat cutting mechanism as described in claim 4, characterized in that: An opening groove (201) is formed on one side of the support (2), through which the front end of the bag to be cut can pass.

8. A novel valve bag valve port waste heat cutting mechanism as described in any one of claims 1-7, characterized in that: The bag transfer assembly (9) has two sets of synchronous belts (901) that fit together, and the two sets of synchronous belts (901) can jointly clamp the tail of the bag to drag the bag.

9. A novel valve bag valve port waste heat cutting mechanism as described in claim 8, characterized in that: The bag transfer assembly (9) also includes a pressure block (912) on the frame (1), which allows the timing belt (901) to abut against the pressure block (912) when the tail of the bag is clamped between the two sets of timing belts (901).

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