Hot melting cutting device for plastic bag

Abstract

The utility model provides a hot melting cutting device for a plastic bag, which relates to the technical field of plastic bag production, and comprises a main body and a fixing mechanism, the main body comprises a bottom plate, a pair of door-shaped frames are arranged at the upper end of the bottom plate, a transverse plate is arranged between the pair of door-shaped frames, a retainer is arranged at the bottom end of the transverse plate, and a hydraulic cylinder is arranged at the bottom end of the retainer; the fixing mechanism comprises a base, the base is arranged at the top end of the bottom plate, a two-way lead screw and a sliding rod are rotationally connected to the interior of the base, a pair of moving plates are in threaded connection with the exterior of the two-way lead screw, one end of the sliding rod penetrates through the pair of moving plates, and the other end of the sliding rod penetrates through the pair of moving plates. And rotating discs are rotatably connected to the interiors of the pair of moving plates, a positioning rod is installed on one side of the exterior of one rotating disc, and a clamping block is movably inserted into the positioning rod. According to the plastic bag cutting device, the practicability of the plastic bag cutting device can be effectively improved, and high practical value is achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of plastic bag production, and more specifically, particularly relates to a plastic bag hot-melt cutting device. Background Art

[0002] Plastic bags, also known as plastic bags, are portable packaging materials made from specific polymer materials through processes such as film blowing and extrusion. They are usually made of polyethylene (PE), polypropylene (PP), polyvinyl alcohol (PEVA), polyurethane (TPU), polyamide (PA), etc. Various production equipment are required in the production process of plastic bags. After the raw materials are stirred, heated and molten and formed into a predetermined shape, a cutting device is required to cut and separate the long strips of material.

[0003] Based on the above, the inventors have found the following problems: the existing plastic bag cutting device is not convenient for installing and adjusting plastic bag rollers of different sizes, and it is not convenient to disassemble the empty plastic bag roller after all the material strips wrapped around the outside of the plastic bag roller are cut, thereby reducing the practicality of the cutting device.

[0004] Therefore, in view of this, the existing structure and defects are studied and improved, and a plastic bag hot melt cutting device is provided to achieve a more practical purpose. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a plastic bag hot melt cutting device to solve the problems in the current background technology.

[0006] The purpose and effect of the hot melt cutting device for plastic bags of the utility model are achieved by the following specific technical means:

[0007] The hot-melt cutting device for plastic bags comprises a main body and a fixing mechanism, wherein the main body comprises a bottom plate, a pair of door-shaped frames are installed at the upper end of the bottom plate, a cross plate is installed between the pair of door-shaped frames, a retaining frame is arranged at the bottom end of the cross plate, a hydraulic cylinder is installed at the bottom end of the retaining frame, a connecting plate is installed at the movable end of the hydraulic cylinder, an electric hot cutting knife is inserted into the interior of the connecting plate, the fixing mechanism comprises a base, the base is arranged at the top end of the bottom plate, and the internal rotation of the base is connected with a bidirectional screw rod and a sliding rod, the external thread connection of the bidirectional screw rod is connected with a pair of movable plates, one end of the sliding rod passes through the pair of movable plates and is slidably connected with the pair of movable plates, the internal rotation connection of the pair of movable plates is connected with a turntable, and a positioning rod is installed on the external side of one of the turntables, and a card block is inserted into the internal movement of the positioning rod.

[0008] Furthermore, springs are installed on both sides of the inner wall of the positioning rod close to the clamping block, and the springs are fixedly connected to the clamping block at one end away from the inner wall of the positioning rod.

[0009] Furthermore, one of the movable plates is installed with a fixed plate on the outer side away from the positioning rod, a U-shaped seat is slidably inserted inside the fixed plate, a rotating shaft is rotatably inserted inside the U-shaped seat, and an arc block is installed at one end of the rotating shaft.

[0010] Furthermore, a hydraulic rod is installed on the outer side of the fixed plate, and the movable end of the hydraulic rod is fixedly connected to the U-shaped seat. A second motor is installed on the outer side of the U-shaped seat, and the output end of the second motor is connected to the rotating shaft through a coupling.

[0011] Furthermore, a first motor is installed on one side of the outer side of the base, and the output end of the first motor is transmission-connected to the bidirectional screw rod, and a third motor is installed on the outer side of another movable plate, and the output end of the third motor is transmission-connected to the other turntable.

[0012] Furthermore, a circular hole is formed at the center of the positioning rod, one of the moving plates and one of the rotating disks, and the diameter of the circular hole is larger than the longest diameter of the arc block.

[0013] Furthermore, an electric slide rail is embedded inside the transverse plate, an electric slider is slidably connected to the outside of the electric slide rail, and the bottom end of the electric slider is fixedly connected to the top end of the retaining frame.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] 1. The hot-melt cutting device for plastic bags is used in coordination with a base, a bidirectional screw rod, a sliding rod, a first motor, a movable plate, a positioning rod, a clamping block, a spring, a fixed plate, a hydraulic rod, a U-shaped seat, a second motor, a rotating shaft and an arc block. By setting the first motor, when it is working, it is convenient to make the bidirectional screw rod rotate, so that a pair of movable plates connected by its external threads can realize opposite linear movement under the sliding action of the sliding rod, so that the plastic bag to be cut is clamped between the pair of movable plates. By setting the positioning rod, since the plastic bag is already located between the pair of movable plates at this time, the positioning rod is inserted into the plastic bag. By setting the hydraulic rod, the U-shaped seat is pushed to move on the fixed plate and approach the movable plate with the positioning rod installed, and the arc block on one side of the U-shaped seat is inserted into the inside of the positioning rod through the circular hole. By setting the second motor, the arc block is rotated, so that its protrusion is pressed and fitted with the bottom of the clamping block, so that the clamping block presses the spring and extends outward, and the plastic bag outside the positioning rod is further fixed.

[0016] 2. This kind of hot-melt cutting device for plastic bags is used in coordination with a horizontal plate, an electric slide rail, a hydraulic cylinder and an electric hot cutting knife. By setting an electric slide rail and slidingly connecting an electric slider on its outside, when the electric slide rail and the electric slider are working, it is convenient to realize the lateral movement of the electric hot cutting knife. By setting a hydraulic cylinder, when it is working, it is convenient to push the electric hot cutting knife downward, and then cut different positions of the hollow plastic bag roller. By setting an electric hot cutting knife, the tape is hot-melt cut. The utility model has a simple and reasonable structure, a novel design, and is simple and convenient to operate. It can effectively improve the practicality of the plastic bag cutting device and has a high practical value. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.

[0018] Figure 2 It is a three-dimensional structural schematic diagram of the positioning plate of the utility model.

[0019] Figure 3 It is an exploded three-dimensional structural schematic diagram of a fixing plate and a U-shaped seat of the utility model.

[0020] Figure 4 It is a side section schematic diagram of the positioning rod and the arc block of the utility model.

[0021] In the figure, the corresponding relationship between the component names and the figure numbers is as follows:

[0022] 100, main body; 1001, bottom plate; 1002, door frame; 1003, cross plate; 1004, electric slide rail; 1005, retaining frame; 1006, hydraulic cylinder; 1007, electric thermal cutting knife; 200, fixing mechanism; 2001, base; 2002, two-way screw rod; 2003, slide rod; 2004, first motor; 2005, moving plate; 2006, positioning rod; 2007, block; 2008, spring; 2009, fixing plate; 2010, hydraulic rod; 2011, U-shaped seat; 2012, second motor; 2013, rotating shaft; 2014, arc block; 2015, turntable; 2016, third motor. DETAILED DESCRIPTION

[0023] The following is a further detailed description of the implementation of the present utility model in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present utility model, but cannot be used to limit the scope of the present utility model.

[0024] Example:

[0025] As attached Figure 1 To Attachment Figure 4 As shown:

[0026] The utility model provides a hot-melt cutting device for plastic bags, comprising a main body 100 and a fixing mechanism 200, wherein the main body 100 comprises a bottom plate 1001, a pair of door-shaped frames 1002 are installed at the upper end of the bottom plate 1001, a horizontal plate 1003 is installed between the pair of door-shaped frames 1002, a retaining frame 1005 is arranged at the bottom end of the horizontal plate 1003, a hydraulic cylinder 1006 is installed at the bottom end of the retaining frame 1005, a connecting plate is installed at the movable end of the hydraulic cylinder 1006, an electric heat cutting knife 1007 is inserted in the interior of the connecting plate, and the fixing mechanism 200 comprises a base 2001, and the base 2001 is arranged on the bottom plate The top of the base 2001 is connected to the inner rotation of a bidirectional screw rod 2002 and a sliding rod 2003, the outer thread of the bidirectional screw rod 2002 is connected to a pair of movable plates 2005, one end of the sliding rod 2003 passes through the pair of movable plates 2005, and is slidably connected to the pair of movable plates 2005, the inner rotation of the pair of movable plates 2005 is connected to a turntable 2015, and a positioning rod 2006 is installed on the outer side of one of the turntables 2015, and a block 2007 is movably inserted in the inner part of the positioning rod 2006, and the tape is hot-melt cut by setting an electric thermal cutting knife 1007.

[0027] Among them, springs 2008 are installed on both sides of the inner wall of the positioning rod 2006 close to the block 2007. The spring 2008 is fixedly connected to the block 2007 at one end away from the inner wall of the positioning rod 2006. By setting the spring 2008, when the block 2007 squeezes the spring 2008, it will extend outward. When the squeezing force of the block 2007 on the spring 2008 disappears, it will reset under the action of the elastic force of the spring 2008, thereby realizing the inward contraction of the block 2007.

[0028] Among them, one of the movable plates 2005 is installed with a fixed plate 2009 on the external side away from the positioning rod 2006, and a U-shaped seat 2011 is slidably inserted inside the fixed plate 2009, and a rotating shaft 2013 is rotatably inserted inside the U-shaped seat 2011. An arc block 2014 is installed at one end of the rotating shaft 2013. By setting the arc block 2014, when the raised part of the arc block 2014 abuts against the bottom of the block 2007, the block 2007 squeezes the spring 2008, and then when the recessed part of the arc block 2014 abuts against the bottom of the block 2007, the squeezing force of the block 2007 on the spring 2008 disappears.

[0029] Among them, a hydraulic rod 2010 is installed on the outer side of the fixed plate 2009, and the movable end of the hydraulic rod 2010 is fixedly connected to the U-shaped seat 2011. A second motor 2012 is installed on the outer side of the U-shaped seat 2011. The output end of the second motor 2012 is connected to the rotating shaft 2013 through a coupling transmission. By setting the hydraulic rod 2010, it is convenient to push the U-shaped seat 2011 to move on the fixed plate 2009. By setting the second motor 2012, when it is working, it is convenient to drive the rotating shaft 2013 to rotate, thereby realizing the rotation of the arc block 2014.

[0030] Among them, a first motor 2004 is installed on one side of the outside of the base 2001, and the output end of the first motor 2004 is transmission-connected to the bidirectional screw rod 2002. A third motor 2016 is installed on the outside of another of the movable plates 2005, and the output end of the third motor 2016 is transmission-connected to another of the turntables 2015. By setting the first motor 2004, when it is working, it is convenient to rotate the bidirectional screw rod 2002. By setting the third motor 2016, it is convenient to realize the rotation of the plastic bag roller between a pair of movable plates 2005.

[0031] Among them, circular holes are opened at the center of the positioning rod 2006, one of the movable plates 2005 and one of the turntables 2015. The diameter of the circular hole is larger than the longest diameter of the arc block 2014. By setting the circular hole, it is convenient for the arc block 2014 to be inserted into the positioning rod 2006.

[0032] An electric slide rail 1004 is embedded inside the transverse plate 1003 , and an electric slider is slidably connected to the outside of the electric slide rail 1004 . The bottom end of the electric slider is fixedly connected to the top end of the retaining frame 1005 .

[0033] The specific usage and function of this embodiment are as follows:

[0034] When using this product, first check whether the internal mechanisms of the plastic bag hot melt cutting device are complete. After ensuring that they are complete, first start the first motor 2004 to rotate the bidirectional screw rod 2002, so that the pair of movable plates 2005 connected by their external threads move toward each other under the sliding action of the slide bar 2003, clamp the plastic bag to be cut between the pair of movable plates 2005, and insert the positioning rod 2006 into the hollow plastic bag roller, and start the hydraulic rod 2010 to push the U-shaped seat 2011 to move on the fixed plate 2009 and approach the movable plate 2005 with the positioning rod 2006 installed, insert the arc block 2014 on one side of the U-shaped seat 2011 into the interior of the positioning rod 2006 through the circular hole, and start the second motor 2012 to rotate the arc block 2014, so that when the protrusion thereof abuts against the bottom of the block 2007, the block 2007 squeezes the spring 2008 and extends outward, The plastic bag outside the positioning rod 2006 is further fixed, and the second motor 2012 and the third motor 2016 are started at the same time, and the second motor 2012 and the third motor 2016 have the same rotation frequency. When the third motor 2016 rotates, a pair of turntables 2015 are caused to rotate together under the action of the plastic bag roller connected, so that the positioning rod 2006 installed on one side of one of the turntables 2015 rotates, and at the same time, the rotation of the second motor 2012 drives the arc block 2014 to rotate, so that the protrusion of the arc block 2014 is still pressed and fitted with the bottom end of the block 2007, and then the electric slide rail 1004 and the electric slider, the hydraulic cylinder 1006 and the electric hot cutter 1007 are started, the electric slide rail 1004 and the electric slider make the electric hot cutter 1007 move horizontally, the hydraulic cylinder 1006 makes the electric hot cutter 1007 move downward, and the electric hot cutter 1007 performs hot-melt cutting on the plastic bag.

[0035] The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

Claims

1. Plastic bag hot melt cutting device, characterized by: The invention comprises a main body (100) and a fixing mechanism (200), wherein the main body (100) comprises a bottom plate (1001), a pair of door-shaped frames (1002) are installed at the upper end of the bottom plate (1001), a cross plate (1003) is installed between the pair of door-shaped frames (1002), a retaining frame (1005) is arranged at the bottom end of the cross plate (1003), a hydraulic cylinder (1006) is installed at the bottom end of the retaining frame (1005), a connecting plate is installed at the movable end of the hydraulic cylinder (1006), an electric heat cutting knife (1007) is inserted in the interior of the connecting plate, and the fixing mechanism (200) comprises a base (2001), and the base (2001 ) is arranged at the top of the base plate (1001), and the base (2001) is internally rotatably connected with a bidirectional screw rod (2002) and a sliding rod (2003), the external thread of the bidirectional screw rod (2002) is connected with a pair of movable plates (2005), one end of the sliding rod (2003) passes through the pair of movable plates (2005) and is slidably connected with the pair of movable plates (2005), the internal rotation of the pair of movable plates (2005) is connected with a turntable (2015), and a positioning rod (2006) is installed on one side of the outside of one of the turntables (2015), and a card block (2007) is movably inserted inside the positioning rod (2006).

2. The hot melt cutting device for plastic bags as claimed in claim 1, characterized in that: Springs (2008) are installed on both sides of the inner wall of the positioning rod (2006) close to the block (2007), and the spring (2008) is fixedly connected to the block (2007) at one end away from the inner wall of the positioning rod (2006).

3. The hot melt cutting device for plastic bags as claimed in claim 2, characterized in that: One of the movable plates (2005) is provided with a fixed plate (2009) on the outer side away from the positioning rod (2006); a U-shaped seat (2011) is inserted for sliding inside the fixed plate (2009); a rotating shaft (2013) is inserted for rotation inside the U-shaped seat (2011); and an arc block (2014) is installed at one end of the rotating shaft (2013).

4. The hot melt cutting device for plastic bags as claimed in claim 3, characterized in that: A hydraulic rod (2010) is installed on one side of the exterior of the fixed plate (2009), a movable end of the hydraulic rod (2010) is fixedly connected to the U-shaped seat (2011), a second motor (2012) is installed on one side of the exterior of the U-shaped seat (2011), and an output end of the second motor (2012) is connected to the rotating shaft (2013) via a coupling.

5. The hot melt cutting device for plastic bags as claimed in claim 4, characterized in that: A first motor (2004) is installed on one side of the outside of the base (2001), and the output end of the first motor (2004) is transmission-connected to the bidirectional screw rod (2002). A third motor (2016) is installed on the outside of another of the movable plates (2005), and the output end of the third motor (2016) is transmission-connected to another of the turntables (2015).

6. The hot melt cutting device for plastic bags as claimed in claim 5, characterized in that: A circular hole is provided at the center of the positioning rod (2006), one of the movable plates (2005) and one of the rotating disks (2015), and the diameter of the circular hole is greater than the longest diameter of the arc block (2014).

7. The hot melt cutting device for plastic bags as claimed in claim 1, characterized in that: An electric slide rail (1004) is embedded inside the transverse plate (1003), and an electric slider is slidably connected to the outside of the electric slide rail (1004), and the bottom end of the electric slider is fixedly connected to the top end of the retaining frame (1005).

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