Convenient-to-install thermal plastic packaging shearing mechanism for screw plastic packaging machine

Abstract

The utility model discloses a convenient-to-install thermoplastic packaging shearing mechanism for screw plastic packaging machine, which comprises a base plate, a first cylinder, a clamping mechanism and a heating plate, the first cylinder is arranged on one side of the base plate, the clamping mechanism comprises a left clamping seat and a right clamping seat which are arranged in parallel, a piston rod of the first cylinder penetrates through the base plate and then is connected with an adjusting plate, and the left clamping seat and the right clamping seat are connected with the heating plate. The front end of the adjusting plate is connected with the rear portion of the left clamping base, a heating plate is arranged in front of the left clamping base, two first guide rods located on the two sides of the left clamping base are further arranged at the front end of the adjusting plate, a positioning plate is connected between the ends, away from the left clamping base, of the two first guide rods, and a second air cylinder is fixed to the outer side of the positioning plate. A piston rod of the second air cylinder penetrates through the positioning plate and then is connected with a cutter, the right clamping base is fixed to the face, facing the base plate, of the positioning plate, a cutter edge of the cutter is inserted into the right clamping base, and the second air cylinder is arranged to work and can stretch out of the face, facing the heating plate, of the right clamping base. By means of the structure, it can be guaranteed that packaging bags subjected to plastic packaging are cut more accurately.

Description

Technical Field

[0001] This utility model relates to the technical field of screw packaging equipment, specifically a heat-sealing and cutting mechanism for a screw sealing machine that is easy to install. Background Technology

[0002] Screw packaging machines are machines that can automatically sort, count, and package products with regular shapes such as screws and nuts. Their functional structure mainly consists of a hopper, chassis, PLC control system, fiber optic counting system, pneumatic device, plastic sealing and other supporting components.

[0003] Existing screw packaging equipment typically involves two steps in sealing the packaging bags: horizontal sealing and vertical sealing. The most common method is vertical sealing, as illustrated in patent application number 201721875834.2, which discloses an automatic screw packaging machine. This structure includes a base plate, a fourth drive motor, and a clamping mechanism. The fourth drive motor is connected to the base plate via the clamping mechanism. However, after sealing, this structure uses heat fusion to cut the seal, which can easily lead to uneven cuts. Alternatively, a shearing mechanism located outside the sealing mechanism can be used to cut the sealed packaging bag. In this case, the subsequent installation of the shearing mechanism needs to ensure alignment with the packaging bag's conveying trajectory; otherwise, misalignment during shearing can easily occur. This results in relatively high requirements for the installation of the subsequent shearing mechanism. Therefore, both methods have their own problems and require improvement. Utility Model Content

[0004] The purpose of this utility model is to provide a heat-sealing cutting mechanism for a screw sealing machine that is easy to install, in order to solve the problems mentioned in the background art, such as the incomplete cutting of existing packaging bag sealing or the use of external cutting mechanisms, which result in high installation requirements.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a heat-sealing cutting mechanism for a screw sealing machine that is easy to install, comprising a base plate, a first cylinder, a clamping mechanism, and a heating plate. The first cylinder is disposed on one side of the base plate. The clamping mechanism includes two parallel left clamping seats and a right clamping seat. The piston rod of the first cylinder passes through the base plate and is connected to an adjusting plate. The front end of the adjusting plate is connected to the rear of the left clamping seat. The heating plate is disposed in front of the left clamping seat. The front end of the adjusting plate is also provided with two guide rods located on both sides of the left clamping seat. A positioning plate is connected between the ends of the two guide rods away from the left clamping seat. The positioning plate is parallel to the base plate. A second cylinder is fixed to the outside of the positioning plate. The piston rod of the second cylinder passes through the positioning plate and is connected to a cutter. The right clamping seat is fixed on the side of the positioning plate facing the base plate. The blade of the cutter is inserted into the right clamping seat and the second cylinder is configured to extend out of the right clamping seat facing the heating plate when the second cylinder is in operation.

[0006] Preferably, for ease of installation, the side of the positioning plate facing the base plate is provided with two spaced guide rods, and the right clamping seat is connected between the ends of the two guide rods away from the positioning plate.

[0007] Preferably, to facilitate the disassembly of the cutter later, the cutter is provided with two U-shaped openings, and a cutter holder is connected to the piston rod of the second cylinder. Two screw holes are provided on the top of the cutter holder, and a locking screw passing through the U-shaped opening is threaded into each screw hole.

[0008] Preferably, to prevent surface wear when the guide rod moves, the adjusting plate is provided with a sleeve that fits over the guide rod.

[0009] Preferably, to facilitate the later installation of this device onto a screw packaging equipment, a fixed base plate is also included. The side of the base plate away from the left clamping seat is provided with two connecting rods located on both sides of the first cylinder. A mounting plate is connected between the ends of the two connecting rods away from the base plate. The fixed base plate is provided with two mounting through holes. The mounting plate is provided with two spaced connecting blocks. Each connecting block is provided with two longitudinally distributed waist-shaped through holes. A locking screw that is threadedly connected to the fixed base plate is inserted into each waist-shaped through hole.

[0010] To achieve a heat insulation effect, a heat insulation plate is provided between the adjusting plate and the left clamping seat, and the heat insulation plate is connected to the adjusting plate through two connecting columns.

[0011] Furthermore, the heating plate is embedded in the left clamping seat.

[0012] The beneficial effects of this utility model are: This structure combines the cutter and the right clamping seat together, so that once the cutter is installed, the cutting accuracy is higher. It will not have the problem of the existing external cutting mechanism not being installed properly and affecting the cutting accuracy in the later stage. Moreover, compared with the external cutting mechanism, the installation of this structure is relatively convenient. At the same time, compared with simply using heat to cut the plastic seal, the cut of this structure is neater. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of a heat-sealing shearing mechanism for a screw sealing machine that is easy to install, as shown in Embodiment 1. Figure 1 ;

[0014] Figure 2 for Figure 1 Enlarged view of point A;

[0015] Figure 3 This is a schematic diagram of the structure of a heat-sealing cutting mechanism for a screw sealing machine that is easy to install, as shown in Embodiment 1, when the locking screw is separated from other components.

[0016] In the diagram: 1. Base plate; 2. First cylinder; 3. Heating plate; 4. Left clamping seat; 5. Guide rod 1; 6. Sleeve 801; 7. Positioning plate; 8. Second cylinder; 9. Adjusting plate; 10. Cutting knife; 11. Right clamping seat; 12. Sliding groove; 13. Guide rod 2; 14. U-shaped opening; 15. Knife holder; 16. Screw hole; 17. Locking screw 1; 18. Connecting rod; 19. Mounting plate; 20. Fixed base plate; 21. Mounting through hole; 22. Connecting block; 23. Waist-shaped through hole; 24. Locking screw 2; 25. Heat insulation plate; 26. Connecting column. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0018] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0019] Example 1

[0020] Please see Figures 1-3This embodiment discloses a heat-sealing shearing mechanism for a screw sealing machine that is easy to install. It includes a base plate 1, a first cylinder 2, a clamping mechanism, and a heating plate 3. The first cylinder 2 is disposed on one side of the base plate 1. The clamping mechanism includes two parallel left clamping seats 4 and a right clamping seat 10. The piston rod of the first cylinder 2 passes through the base plate 1 and is connected to an adjusting plate 8. The front end of the adjusting plate 8 is connected to the rear of the left clamping seat 4. The heating plate 3 is disposed in front of the left clamping seat 4 and is embedded within the left clamping seat 4. The front end of the adjusting plate 8 is also provided with two guide rods 5 located on both sides of the left clamping seat 4. To prevent surface wear of the guide rods 5 during movement, the adjusting plate 8... A sleeve 801 is provided around the guide rod 5. A positioning plate 6 is connected between the ends of the two guide rods 5 away from the left clamping seat 4. The positioning plate 6 is arranged parallel to the base plate 1. A second cylinder 7 is fixed to the outside of the positioning plate 6. The piston rod of the second cylinder 7 passes through the positioning plate 6 and is connected to a cutter 9. The right clamping seat 10 is fixed on the side of the positioning plate 6 facing the base plate 1. For easy installation, two spaced guide rods 11 are provided on the side of the positioning plate 6 facing the base plate 1. The right clamping seat 10 is connected between the ends of the two guide rods 11 away from the positioning plate 6. The blade of the cutter 9 is inserted into the right clamping seat 10 and the second cylinder 7 is set to extend out of the right clamping seat 10 facing the heating plate 3.

[0021] Preferably, to facilitate the later disassembly of the cutter 9, the cutter 9 is provided with two U-shaped openings 12. The piston rod of the second cylinder 7 is connected to a cutter holder 13. Two screw holes 14 are provided on the top of the cutter holder 13. Each screw hole 14 is threaded with a locking screw 15 that passes through the U-shaped opening 12. Later, by loosening the locking screw 15, the cutter 9 can be removed from the cutter holder 13 to replace the cutter 9, which is convenient for users and avoids the inability to cut packaging bags due to the blade of the cutter 9 becoming dull.

[0022] Preferably, to facilitate the later installation of this device onto the screw packaging equipment, a fixed base plate 18 is also included. Two connecting rods 16 located on both sides of the first cylinder 2 are provided on the side of the base plate 1 away from the left clamping seat 4. A mounting plate 17 is connected between the ends of the two connecting rods 16 away from the base plate 1. The fixed base plate 18 has two mounting through holes 19. The mounting plate 17 has two spaced connecting blocks 20. Each connecting block 20 has two longitudinally distributed oblong through holes 21. A locking screw 22, threadedly connected to the fixed base plate 18, is inserted into each oblong through hole 21. With this structure, the fixed base plate 18 is fixed to the screw packaging equipment using the mounting through holes 19 and screws. Then, the locking screw 22 passes through the corresponding oblong through hole 21 and is threadedly connected to the corresponding threaded hole on the fixed base plate 18 to fix the device. Furthermore, the oblong through holes 21 allow for appropriate adjustment of the device's installation height, further facilitating user operation.

[0023] To achieve heat insulation, a heat insulation plate 23 is provided between the adjusting plate 8 and the left clamping seat 4. By adding the heat insulation plate 23, heat is prevented from being conducted to the cylinder. The heat insulation plate 23 is connected to the adjusting plate 8 through two connecting columns 24.

[0024] In this structure, a sliding groove 101 is opened on the right clamping seat 10, and the sliding groove 101 extends through the entire right clamping seat 10. The cutter 9 is then inserted into the sliding groove 101 and can move horizontally along the sliding groove 101 under the action of the second cylinder 7. When the cutter 9 moves close to the heating plate 3 and slowly abuts against the left clamping seat 4, the sealed packaging bag can be cut. Then, when the left clamping seat 4 is reset with the first cylinder 2 and separates from the right clamping seat 10, the cut packaging bag falls from below into the discharge port, realizing the discharge of the sealed screw. Therefore, by combining the cutter 9 and the right clamping seat 10 together through this structure, the cutting accuracy is higher once the cutter 9 is installed. It will not have the problem of the existing external cutting mechanism not being installed properly and affecting the cutting accuracy in the later stage. Moreover, compared with the external cutting mechanism, the installation of this structure is relatively convenient. At the same time, compared with simply using heat to cut the plastic seal, the cut of this structure is cleaner.

[0025] The specific working principle of this structure is as follows: This device is installed on the screw packaging equipment and works in conjunction with the automatic film-pulling mechanism of the screw packaging equipment. The film-pulling mechanism pulls the packaging bag into the clamp between the left clamp 4 and the right clamp 10. The bottom of the packaging bag in the clamp between the left clamp 4 and the right clamp 10 is then sealed. After sealing, the feeding mechanism on the screw packaging equipment puts the screw into the packaging bag in the clamp between the left clamp 4 and the right clamp 10. Then, as the film-pulling mechanism continues to pull down to the position, the first cylinder 2 is driven to work, moving the left clamp 4 closer to the right clamp 10 until it closes with the right clamp 10. Then, the heating plate 3 is used to heat seal the packaging bag. After sealing, the second cylinder 7 is driven to work, moving the cutter 9 horizontally. When it slowly approaches the heating plate 3 and comes into contact with the left clamp 4, the sealed packaging bag can be cut and unloaded. Then, the first cylinder 2 is driven to reset and separate from the right clamp 10. Under the action of gravity, the unloading is achieved.

[0026] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A heat-sealing cutting mechanism for a screw sealing machine that is easy to install, comprising a base plate (1), a first cylinder (2), a clamping mechanism, and a heating plate (3), characterized in that: The first cylinder (2) is provided on one side of the substrate (1). The clamping mechanism includes two parallel left clamping seats (4) and right clamping seats (10). The piston rod of the first cylinder (2) passes through the substrate (1) and is connected to an adjusting plate (8). The front end of the adjusting plate (8) is connected to the rear of the left clamping seat (4). The heating plate (3) is provided in front of the left clamping seat (4). The front end of the adjusting plate (8) is also provided with two guide rods (5) located on both sides of the left clamping seat (4). The two guide rods (5) are far from... A positioning plate (6) is connected to one end of the left clamping seat (4). The positioning plate (6) is arranged parallel to the base plate (1). A second cylinder (7) is fixed on the outside of the positioning plate (6). The piston rod of the second cylinder (7) passes through the positioning plate (6) and is connected to a cutter (9). The right clamping seat (10) is fixed on the side of the positioning plate (6) facing the base plate (1). The blade of the cutter (9) is inserted into the right clamping seat (10) and the second cylinder (7) is set to work so that it can extend out of the right clamping seat (10) facing the heating plate (3).

2. The easily installable thermoplastic sealing shearing mechanism for a screw sealing machine according to claim 1, characterized in that: The positioning plate (6) has two spaced guide rods (11) on the side facing the base plate (1), and the right clamping seat (10) is connected between the ends of the two guide rods (11) away from the positioning plate (6).

3. A heat-sealing and shearing mechanism for a screw sealing machine that is easy to install, as described in claim 1 or 2, characterized in that: The cutter (9) is provided with two U-shaped openings (12), and the piston rod of the second cylinder (7) is connected to a cutter holder (13). The cutter holder (13) is provided with two screw holes (14) above it, and each screw hole (14) is threaded with a locking screw (15) that passes through the U-shaped opening (12).

4. A heat-sealing cutting mechanism for a screw sealing machine that is easy to install, as described in claim 1 or 2, characterized in that: The adjusting plate (8) is provided with a sleeve (801) that is fitted over the guide rod (5).

5. A heat-sealing and shearing mechanism for a screw sealing machine that is easy to install, as described in claim 1 or 2, characterized in that: Two connecting rods (16) located on both sides of the first cylinder (2) are provided on the side of the substrate (1) away from the left clamping seat (4). A mounting plate (17) is connected between the ends of the two connecting rods (16) away from the substrate (1).

6. The easily installable thermoplastic sealing shearing mechanism for a screw sealing machine according to claim 5, characterized in that: It also includes a fixed base plate (18), which has two mounting through holes (19). The mounting plate (17) has two spaced connecting blocks (20). Each connecting block (20) has two longitudinally distributed waist-shaped through holes (21). Each waist-shaped through hole (21) is fitted with a locking screw (22) that is threadedly connected to the fixed base plate (18).

7. A heat-sealing cutting mechanism for a screw sealing machine that is easy to install, as described in claim 1 or 2, characterized in that: A heat insulation plate (23) is provided between the adjusting plate (8) and the left clamping seat (4), and the heat insulation plate (23) is connected to the adjusting plate (8) through two connecting columns (24).

8. A heat-sealing cutting mechanism for a screw sealing machine that is easy to install, as described in claim 1 or 2, characterized in that: The heating plate (3) is embedded in the left clamping seat (4).

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