Cutting equipment and cutting method for thermoplastic plastic product after injection molding

Abstract

The invention relates to the technical field of thermoplastic plastic products, and discloses cutting equipment and a cutting method for thermoplastic plastic products after injection molding.The cutting equipment comprises a mounting and placing unit, a transmission unit and a clamping unit, the mounting and placing unit comprises a mounting base, and supporting legs are fixedly mounted on the periphery of the bottom of the mounting base; the four supporting legs are symmetrical in pairs, a workbench is fixedly installed above the installation base, side plates are fixedly installed on the side walls of the workbench, a top plate is fixedly installed above the side plates, cavities are formed in the workbench and the side plates, and a rectangular containing notch is formed in the middle of the upper portion of the workbench. When a first threaded sleeve vertically moves downwards, an L-shaped connecting rod can be driven to vertically move downwards, when the L-shaped connecting rod moves downwards, a swing arm can be driven to pull a mounting bearing, and a rotating rod drives a rotating roller to perform relative movement under the assistance of the inner wall of a rectangular placement notch formed in the workbench; therefore, the clamping device can be located at the optimal clamping position of the thermoplastic plastic plate.

Description

Technical Field

[0001] The invention belongs to the technical field of thermoplastic plastic products, and in particular relates to a cutting device and a cutting method for thermoplastic plastic products after injection molding. Background Art

[0002] In the production of plastic sheets, plastic is continuously extruded from a viscous molten state by an extruder, cooled and formed into sheets by a three-roll calender and a cooling roller, and the large-sized sheets are then cut into several small-sized sheets of the same size by a longitudinal cutter. They are then transported to the operating table, where the operator manually tears off the waste on the left and right longitudinal edges of the sheets, and finally obtains sheets of the specifications required by the customer.

[0003] However, when cutting the two sides of the existing thermoplastic plastic plate, it is mostly necessary to clamp the thermoplastic plastic plate. However, when clamping the thermoplastic plastic plate, it is easy for the position to be cut to be the clamping position, which makes it troublesome to readjust the clamping mechanism.

[0004] In view of this, the present invention is proposed. Summary of the invention

[0005] In order to solve the above technical problems, the basic concept of the technical solution adopted by the present invention is: A thermoplastic plastic product cutting device and cutting method after injection molding, comprising an installation and placement unit, a transmission unit and a clamping unit, wherein the installation and placement unit comprises a mounting base, support legs are fixedly installed around the bottom of the mounting base, and four support legs are symmetrical to each other, a workbench is fixedly installed above the mounting base, side panels are fixedly installed on the side walls of the workbench, and a top panel is fixedly installed above the side panels, cavities are provided in the workbench and the side panels, a rectangular placement slot is provided in the middle of the top of the workbench, a placement slot is provided in the middle of the rectangular placement slot, and a rectangular slot is provided in the middle of the side panels of the side panels, an electric slide rail is provided at the bottom of the top panel, and two symmetrical hydraulic cylinders are provided on the electric slide rail, and mounting frames are provided at the bottoms of the two hydraulic cylinders, and cutting assemblies are provided in the two mounting frames, and the two cutting assemblies are symmetrical to each other; The transmission unit includes a servo motor, which is installed in the inner cavity of the workbench. A first threaded rod is fixedly installed at the output end of the servo motor, and a first threaded sleeve is meshed and installed on the first threaded rod. First sliding mechanisms are arranged on both sides of the first threaded sleeve. A circular mounting cylinder is fixedly installed above the first threaded rod, and four placement cavities distributed in a circumference are opened on the inner wall of the circular mounting cylinder. The four placement cavities are all provided with a second sliding mechanism and a clamping mechanism. A moving mechanism is arranged above the first threaded sleeve, and the other end of the moving mechanism is connected to a positioning plate. A connecting rod is movably passed through the middle of the positioning plate, and a connecting rod is fixedly installed on the upper end of the connecting rod. A second threaded rod, a telescopic rod is fixedly installed on the top of the second threaded rod, a bearing is arranged on the top of the telescopic rod, and the bearing is arranged above the inner cavity of the side plate; a second threaded sleeve is meshedly installed on the second threaded rod, and a third sliding mechanism is arranged on the side wall of the second threaded sleeve; an L-shaped connecting rod is fixedly installed on the bottom of the first threaded sleeve, and two mutually symmetrical swing rods are movably installed on the L-shaped connecting rod, and the two swing rods movably penetrate the placement slots, and the other ends of the two swing rods are movably connected with mounting bearings, and the two mounting bearings are arranged on rotating rods, and rollers are arranged at both ends of the two rotating rods, and the two rollers are fitted and connected to the rectangular placement slots; The clamping unit includes a fixing plate, which is fixedly mounted on the positioning plate and movably passes through the rectangular slot. A fixing block is fixedly mounted on the bottom of the other end of the fixing plate, a limiting plate is fixedly mounted on the bottom of the fixing block, and an extrusion mechanism is arranged above the fixing block.

[0006] As a preferred embodiment of the present invention, the first sliding mechanism includes two first sliding grooves, the two first sliding grooves are respectively opened on the two opposite side walls of the side plate inner cavity, the two first sliding grooves are symmetrical to each other, the two first sliding groove inner cavities are both slidably installed with first sliding rods, the two first sliding rods are symmetrical to each other, and the opposite side walls of the two first sliding rods are fixedly connected to the first threaded sleeve.

[0007] As a preferred embodiment of the present invention, the second sliding mechanism includes a plurality of first guide grooves, each of which is respectively opened on two opposite side walls of a plurality of placement cavities, each of which is symmetrical with each other, each of which is slidably installed with a first guide slider in the inner cavity of each of which, and each of which is symmetrical with each other.

[0008] As a preferred embodiment of the present invention, the clamping mechanism includes multiple first movable plates, each of the two side walls of the first movable plates is fixedly installed with a first guide slider, each of the one side wall of the first movable plates is fixedly connected with a first return spring, the other end of each first return spring is fixedly connected to the inner wall of the placement cavity, and the first movable plates are respectively fixedly connected with a conical plate at one end away from the first return spring, and each of the conical plates is distributed in a circle.

[0009] As a preferred embodiment of the present invention, one end of the connecting rod away from the second threaded rod is fixedly connected to a mounting column, and four snap-in slots distributed in a circumference are formed around the mounting column, and each of the snap-in slots fits with the conical plate respectively.

[0010] As a preferred embodiment of the present invention, the moving mechanism includes four plug-in cylinders and four plug-in rods, the top ends of the four plug-in cylinders are vertically fixed on the positioning plate, the four plug-in cylinders are distributed in a circle, the inner cavities of the four plug-in cylinders are provided with a fourth sliding mechanism, the four plug-in rods are fixedly mounted on the first threaded sleeve, and the four plug-in rods are distributed in a circle, and the four plug-in rods respectively fit with the four plug-in cylinders.

[0011] As a preferred embodiment of the present invention, the fourth sliding mechanism includes a plurality of second guide grooves, each of the second guide grooves is respectively opened on the two side walls opposite to each other in the inner cavity of the plug-in tube, each of the second guide grooves is symmetrical with each other, and a second guide slider is slidably installed in the inner cavity of each second guide groove, each of the second guide sliders is symmetrical with each other, and a second movable plate is fixedly connected to one side wall opposite to each other of the second guide sliders, a second return spring is fixedly connected to the top of each second movable plate, and the other end of the second return spring is fixedly connected to the inner wall of the plug-in tube, and a plug-in rod is fixedly connected to the bottom of each second movable plate.

[0012] As a preferred embodiment of the present invention, the third sliding mechanism includes two second sliding grooves, the two second sliding grooves are respectively opened on the two opposite side walls of the side plate inner cavity, the two second sliding grooves are symmetrical to each other, the two second sliding groove inner cavities are both slidably installed with second sliding rods, the two second sliding rods are symmetrical to each other, and the opposite ends of the two second sliding rods are fixedly connected to the second threaded sleeve.

[0013] As a preferred embodiment of the present invention, the extrusion mechanism includes a tilting block, the two tilting blocks are symmetrical with each other, the two tilting blocks are each provided with a slide rail, the two slide rails are respectively arranged on the side walls of the side plates, the two tilting blocks are each provided with a swing arm, the two swing arms are symmetrical with each other, the other ends of the two swing arms are movably connected with a placement plate, the placement plate movably passes through the rectangular slot, and the other end of the placement plate is fixedly connected to the side wall of the second threaded sleeve.

[0014] A method for cutting a thermoplastic product after injection molding, comprising the following steps: Step 1: First, the staff places the thermoplastic plastic plate on the roller. When the placement is completed, the staff supports the thermoplastic plastic plate and controls the servo motor to run through the controller; Step 2: When the servo motor is running, it will be able to drive the first threaded rod to rotate. When the first threaded rod rotates, it will be able to drive the first threaded sleeve to move vertically downward with the assistance of the first sliding mechanism. When the first threaded sleeve moves vertically downward, the first threaded sleeve will be able to drive the plug-in rod to pull the plug-in cylinder to move downward. When the plug-in cylinder moves downward, it will be able to drive the positioning plate to move vertically downward. When the positioning plate moves vertically downward, it will be able to drive the second threaded rod to move vertically downward with the assistance of the telescopic rod through the connecting rod. When the positioning plate moves vertically downward, it will be able to drive the fixing plate to move vertically downward. When the fixing plate moves vertically downward, it will be able to drive the fixing block and the limiting plate to move vertically downward, and the placed thermoplastic plastic plate can be limited at this time; Step 3: When the first threaded rod rotates, it will be able to drive the circular installation tube to rotate, and when the circular installation tube moves vertically downward, it will be able to drive the installation column to rotate and move vertically downward and rotate with the assistance of the provided clamping slot through the conical plate provided in the inner cavity, and when the installation column moves vertically downward and rotates, it will be able to drive the connecting rod to rotate, and when the connecting rod rotates, it will be able to drive the second threaded rod to rotate, and when the second threaded rod rotates, it will be able to drive the telescopic rod to rotate with the assistance of the bearing; Step 4: When the second threaded rod rotates, it will be able to drive the second threaded sleeve to move vertically upward with the assistance of the third sliding mechanism. When the second threaded sleeve moves vertically upward, it will be able to drive the placement plate to move vertically upward. When the placement plate moves vertically upward, the swing arm will be able to drive the two tilting blocks to move horizontally relative to each other with the assistance of the slide rail, so that the two tilting blocks are always pressed on the fixed block, so that they can always limit the placed thermoplastic plastic plate; Step 5: At the same time, when the first threaded sleeve moves vertically downward, it will be able to drive the L-shaped connecting rod to move vertically downward. When the L-shaped connecting rod moves downward, it will drive the rocker bar to pull the installation bearing; and the rotating rod drives the roller to move relative to the inner wall of the rectangular placement groove opened on the workbench with the assistance of the inner wall, so that it can be in the best clamping position for the thermoplastic plastic plate. At this time, the staff controls the electric slide rail through the controller to drive the hydraulic cylinder to drive the installation frame and the cutting assembly to move to the best position, and then the placed thermoplastic plastic plate can be cut by starting the hydraulic cylinder and the cutting assembly.

[0015] Compared with the prior art, the present invention has the following beneficial effects: When the second threaded rod rotates, the second threaded sleeve will be driven to move vertically upward with the assistance of the second slide groove and the second slide rod in the third sliding mechanism. When the second threaded sleeve moves vertically upward, the placement plate will be driven to move vertically upward. When the placement plate moves vertically upward, the two inclined blocks will be driven by the swing arm to move horizontally relative to each other with the assistance of the slide rail, so that the two inclined blocks are always pressed on the fixed block, so that they can always limit the placed thermoplastic plastic plate; when the first threaded sleeve moves vertically downward, it will be able to drive the L-shaped connecting rod to move vertically downward. When the L-shaped connecting rod moves downward, it will be able to drive the swing arm to pull the installation bearing to drive the rotating roller through the rotating rod to move relative to the inner wall of the rectangular placement groove opened on the workbench, so that it can be in the best clamping position for the thermoplastic plastic plate.

[0016] The specific implementation modes of the present invention are further described in detail below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In the attached picture: Figure 1 It is a three-dimensional schematic diagram of a cutting device and a cutting method for a thermoplastic plastic product after injection molding; Figure 2 A bottom view schematic diagram of a cutting device and a cutting method for a thermoplastic plastic product after injection molding; Figure 3 It is a schematic bottom-up cross-sectional view of a cutting device and a cutting method for a thermoplastic plastic product after injection molding; Figure 4 A schematic diagram of a cutaway side view of a workbench of a thermoplastic plastic product cutting device and a cutting method after injection molding; Figure 5 A schematic diagram of a side view of a workbench of a thermoplastic plastic product cutting device and a cutting method after injection molding; Figure 6A schematic diagram of a circular mounting barrel for a thermoplastic plastic product cutting device and cutting method after injection molding; Figure 7 A schematic diagram of the inner cavity of a workbench of a thermoplastic plastic product cutting device and a cutting method after injection molding; Figure 8 A schematic diagram of a moving mechanism of a cutting device and a cutting method for a thermoplastic plastic product after injection molding; Fig. 9 The present invention is a schematic diagram of a clamping mechanism of a cutting device and a cutting method for a thermoplastic plastic product after injection molding.

[0018] In the figure: 100, installation placement unit; 101, installation base; 1011, support leg; 1012, workbench; 1013, side panel; 1014, top panel; 1015, rectangular placement notch; 1016, rectangular notch; 1017, placement notch; 102, electric slide rail; 1021, hydraulic cylinder; 1022, installation frame; 1023, cutting assembly; 200, transmission unit; 201, servo motor; 2011, first threaded rod; 2012, first threaded sleeve; 2013, L-shaped connecting rod; 2014, swing rod; 2015, roller; 2016, mounting bearing; 2017, rotating rod; 202, first slide groove; 2021, first slide rod; 203, circular mounting cylinder; 2031, first guide slide groove; 2032, first guide slider; 2033, first moving plate; 2034, conical plate; 2035, first return spring ; 2036, mounting column; 2037, snap-in notch; 2038, positioning plate; 2039, connecting rod; 20311, placement cavity; 204, plug-in rod; 2041, plug-in cylinder; 2042, second guide slide groove; 2043, second guide slider; 2044, second movable plate; 2045, second return spring; 205, second threaded rod; 2051, telescopic rod; 2052, bearing; 2053, second threaded sleeve; 2054, second slide groove; 2055, second slide rod; 300, clamping unit; 301, placement plate; 3011, slide rail; 3012, tilting block; 3013, swing arm; 302, fixing plate; 3021, fixing block; 3022, limit plate. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention.

[0020] Embodiment 1:

[0021] like Figures 1 to 9 As shown, a thermoplastic plastic product injection molding post-cutting device and cutting method, including a mounting and placing unit 100, a transmission unit 200 and a clamping unit 300, the mounting and placing unit 100 includes a mounting base 101, the bottom of the mounting base 101 is fixedly installed with support legs 1011, the four support legs 1011 are symmetrical to each other, a workbench 1012 is fixedly installed above the mounting base 101, a side plate 1013 is fixedly installed on the side wall of the workbench 1012, a top plate 1014 is fixedly installed above the side plate 1013, and the workbench 1012 and the side plate 1013 are fixedly installed. A cavity is provided in 013, a rectangular placement slot 1015 is provided in the middle of the workbench 1012, a placement slot 1017 is provided in the middle of the rectangular placement slot 1015, a rectangular slot 1016 is provided in the middle of the side wall of the side plate 1013, an electric slide rail 102 is provided at the bottom of the top plate 1014, and two symmetrical hydraulic cylinders 1021 are provided on the electric slide rail 102, and a mounting frame 1022 is provided at the bottom of the two hydraulic cylinders 1021, and a cutting assembly 1023 is provided in the two mounting frames 1022, and the two cutting assemblies 1023 are symmetrical to each other. A mounting frame 1022 is provided at the bottom of the hydraulic cylinder 1021, and a cutting assembly 1023 is provided in the mounting frame 1022; The transmission unit 200 includes a servo motor 201, which is installed in the inner cavity of the workbench 1012. A first threaded rod 2011 is fixedly installed at the output end of the servo motor 201. A first threaded sleeve 2012 is meshedly installed on the first threaded rod 2011. First sliding mechanisms are arranged on both sides of the first threaded sleeve 2012. A circular mounting cylinder 203 is fixedly installed above the first threaded rod 2011. Four placement cavities 20311 arranged in a circumferential distribution are opened on the inner wall of the circular mounting cylinder 203. The inner cavity of the placement cavity 20311 is provided with a second sliding mechanism and a clamping mechanism, a moving mechanism is provided above the first threaded sleeve 2012, and the other end of the moving mechanism is connected to the positioning plate 2038, a connecting rod 2039 is movably penetrated in the middle of the positioning plate 2038, a second threaded rod 205 is fixedly installed on the upper end of the connecting rod 2039, a telescopic rod 2051 is fixedly installed on the top of the second threaded rod 205, a bearing 2052 is provided on the top of the telescopic rod 2051, and the bearing 2052 is provided in the inner cavity of the side plate 1013 At the top, a second threaded rod 205 is meshedly mounted with a second threaded sleeve 2053, a side wall of the second threaded sleeve 2053 is provided with a third sliding mechanism, an L-shaped connecting rod 2013 is fixedly mounted at the bottom of the first threaded sleeve 2012, two mutually symmetrical swing rods 2014 are movably mounted on the L-shaped connecting rod 2013, the two swing rods 2014 are movably penetrated through the placement slot 1017, the other ends of the two swing rods 2014 are movably connected with mounting bearings 2016, and the two mounting bearings 2016 are provided with rotating Rod 2017, both ends of the two rotating rods 2017 are provided with rollers 2015, and the two rollers 2015 are closely connected to the rectangular placement slot 1015; the clamping unit 300 includes a fixed plate 302, the fixed plate 302 is fixedly installed on the positioning plate 2038, the fixed plate 302 is movable through the rectangular slot 1016, a fixed block 3021 is fixedly installed at the bottom of the other end of the fixed plate 302, a limiting plate 3022 is fixedly installed at the bottom of the fixed block 3021, and an extrusion mechanism is arranged above the fixed block 3021.In this arrangement, when the second threaded rod 205 rotates, it will be able to drive the second threaded sleeve 2053 to move vertically upward with the assistance of the second slide groove 2054 and the second slide rod 2055 in the third sliding mechanism. When the second threaded sleeve 2053 moves vertically upward, it will be able to drive the placement plate 301 to move vertically upward. When the placement plate 301 moves vertically upward, it will be able to drive the two tilting blocks 3012 to move horizontally relative to each other with the assistance of the slide rail 3011 through the swing arm 3013, so that the two tilting blocks 3012 are always pressed on the fixed block 3021, so that they can always limit the placed thermoplastic plastic plate; when the first threaded sleeve 2012 moves vertically downward, it will be able to drive the L-shaped connecting rod 2013 to move vertically downward. When the shaped connecting rod 2013 moves downward, it will drive the swing rod 2014 to pull the installation bearing 2016; and through the rotating rod 2017, the roller 2015 can move relative to the inner wall of the rectangular placement groove 1015 opened at the workbench 1012, so that it can be in the best clamping position for the thermoplastic plastic plate.

[0022] like Figures 3 to 5 As shown, in a specific embodiment, the first sliding mechanism includes two first sliding grooves 202, the two first sliding grooves 202 are respectively opened on the two opposite side walls of the inner cavity of the side plate 1013, the two first sliding grooves 202 are symmetrical to each other, the inner cavities of the two first sliding grooves 202 are both slidably mounted with first sliding rods 2021, the two first sliding rods 2021 are symmetrical to each other, and the opposite side walls of the two first sliding rods 2021 are fixedly connected to the first threaded sleeve 2012. In this configuration, the installation position and components of the first sliding mechanism are determined.

[0023] like Fig. 9 As shown, further, the second sliding mechanism includes a plurality of first guide slots 2031, each of which is respectively provided on two opposite side walls of the inner cavity of the plurality of placement cavities 20311, each of which is symmetrical with each other, each of which is slidably mounted with a first guide slider 2032 in the inner cavity of each first guide slot 2031, and each of which is symmetrical with each other. In this configuration, the installation position and components of the second sliding mechanism are determined.

[0024] like Figures 4 to 7 and Fig. 9As shown, further, the clamping mechanism includes a plurality of first movable plates 2033, both side walls of each first movable plate 2033 are fixedly mounted with first guide sliders 2032, one side wall of each first movable plate 2033 is fixedly connected with a first return spring 2035, the other end of each first return spring 2035 is fixedly connected to the inner wall of the placement cavity 20311, and one end of the first movable plate 2033 away from the first return spring 2035 is fixedly connected with a conical plate 2034, and each conical plate 2034 is distributed in a circle. In this configuration, the installation position and components of the clamping mechanism are determined.

[0025] like Figures 4 to 9 As shown, further, the end of the connecting rod 2039 away from the second threaded rod 205 is fixedly connected with a mounting column 2036, and four circumferentially distributed clamping notches 2037 are provided around the mounting column 2036, and each clamping notch 2037 is respectively matched with the conical plate 2034. In this arrangement, it is ensured that when the first threaded rod 2011 rotates, the circular mounting cylinder 203 can be driven to rotate, and when the circular mounting cylinder 203 moves vertically downward, the conical plate 2034 provided in the inner cavity can drive the mounting column 2036 to rotate and move vertically downward and rotate with the assistance of the clamping notches 2037, when the mounting column 2036 moves vertically downward and rotates, it can drive the connecting rod 2039 to rotate, when the connecting rod 2039 rotates, it can drive the second threaded rod 205 to rotate, and when the second threaded rod 205 rotates, it can drive the telescopic rod 2051 to rotate with the assistance of the bearing 2052.

[0026] Embodiment 2:

[0027] The difference between the above embodiment and this embodiment is that: Figures 4 to 5 and Figure 7 as well as Figure 8 As shown, a thermoplastic plastic product injection molding post-cutting device and cutting method, the moving mechanism includes four plug-in barrels 2041 and four plug-in rods 204, the tops of the four plug-in barrels 2041 are vertically fixed on the positioning plate 2038, the four plug-in barrels 2041 are distributed in a circle, the inner cavities of the four plug-in barrels 2041 are provided with a fourth sliding mechanism, the four plug-in rods 204 are fixedly installed on the first threaded sleeve 2012, and the four plug-in rods 204 are distributed in a circle, and the four plug-in rods 204 are respectively matched with the four plug-in barrels 2041. In this setting, the installation position and components of the moving mechanism are determined.

[0028] like Figures 4 to 5 and Figure 7 as well as Figure 8As shown, in a specific embodiment, the fourth sliding mechanism includes a plurality of second guide slots 2042, each second guide slot 2042 is respectively provided on two opposite side walls of the inner cavity of the plug-in barrel 2041, each second guide slot 2042 is symmetrical with each other, each second guide slot 2042 inner cavity is slidably mounted with a second guide slider 2043, each second guide slider 2043 is symmetrical with each other, a second movable plate 2044 is fixedly connected to one side wall opposite to each other of each second guide slider 2043, a second return spring 2045 is fixedly connected to the top of each second movable plate 2044, and the other end of the second return spring 2045 is fixedly connected to the inner wall of the plug-in barrel 2041, and a plug-in rod 204 is fixedly connected to the bottom of each second movable plate 2044. In this setting, the installation position and components of the fourth sliding mechanism are determined.

[0029] like Figures 3 to 5 As shown, further, the third sliding mechanism includes two second slide grooves 2054, the two second slide grooves 2054 are respectively opened on the two opposite side walls of the inner cavity of the side plate 1013, the two second slide grooves 2054 are symmetrical to each other, the inner cavities of the two second slide grooves 2054 are both slidably mounted with second slide bars 2055, the two second slide bars 2055 are symmetrical to each other, and the opposite ends of the two second slide bars 2055 are fixedly connected to the second threaded sleeve 2053. In this configuration, the installation position and components of the third sliding mechanism are determined.

[0030] like Figures 1 to 5 and Figure 7 As shown, further, the extrusion mechanism includes an inclined block 3012, the two inclined blocks 3012 are symmetrical to each other, the two inclined blocks 3012 are both provided with a slide rail 3011, the two slide rails 3011 are respectively provided on the side walls of the side plate 1013, the two inclined blocks 3012 are both provided with a swing arm 3013, the two swing arms 3013 are symmetrical to each other, the other ends of the two swing arms 3013 are movably connected to a placement plate 301, the placement plate 301 movably penetrates the rectangular notch 1016, and the other end of the placement plate 301 is fixedly connected to the side wall of the second threaded sleeve 2053. In this configuration, the installation position and components of the extrusion mechanism are determined.

[0031] The present invention also discloses a method for cutting a thermoplastic plastic product after injection molding, comprising the following steps: Step 1: First, the staff places the thermoplastic plastic plate on the roller 2015. When the placement is completed, the staff supports the thermoplastic plastic plate and controls the servo motor 201 to operate through the controller; Step 2: When the servo motor 201 is running, it will be able to drive the first threaded rod 2011 to rotate. When the first threaded rod 2011 rotates, it will be able to drive the first threaded sleeve 2012 to move vertically downward with the assistance of the first sliding mechanism. When the first threaded sleeve 2012 moves vertically downward, the first threaded sleeve 2012 will be able to drive the plug-in rod 204 to pull the plug-in cylinder 2041 to move downward. When the plug-in cylinder 2041 moves downward, it will be able to drive the positioning plate 2038 to move vertically downward. When the positioning plate 2038 moves vertically downward, it will be able to drive the second threaded rod 205 to move vertically downward with the assistance of the telescopic rod 2051 through the connecting rod 2039. When the positioning plate 2038 moves vertically downward, it will be able to drive the fixing plate 302 to move vertically downward. When the fixing plate 302 moves vertically downward, it will be able to drive the fixing block 3021 and the limiting plate 3022 to move vertically downward, and the placed thermoplastic plastic plate can be limited at this time; Step 3: When the first threaded rod 2011 rotates, it can drive the circular installation tube 203 to rotate. When the circular installation tube 203 moves vertically downward, it can drive the installation column 2036 to rotate and move vertically downward with the assistance of the provided clamping slot 2037 through the conical plate 2034 provided in the inner cavity. When the installation column 2036 moves vertically downward and rotates, it can drive the connecting rod 2039 to rotate. When the connecting rod 2039 rotates, it can drive the second threaded rod 205 to rotate. When the second threaded rod 205 rotates, it can drive the telescopic rod 2051 to rotate with the assistance of the bearing 2052. Step 4: When the second threaded rod 205 rotates, it will be able to drive the second threaded sleeve 2053 to move vertically upward with the assistance of the third sliding mechanism. When the second threaded sleeve 2053 moves vertically upward, it will be able to drive the placement plate 301 to move vertically upward. When the placement plate 301 moves vertically upward, the swing arm 3013 will drive the two tilting blocks 3012 to move horizontally relative to each other with the assistance of the slide rail 3011, so that the two tilting blocks 3012 are always pressed on the fixed block 3021, so that they can always limit the placed thermoplastic plastic plate; Step 5: At the same time, when the first threaded sleeve 2012 moves vertically downward, it will be able to drive the L-shaped connecting rod 2013 to move vertically downward. When the L-shaped connecting rod 2013 moves downward, it will drive the swing rod 2014 to pull the installation bearing 2016; and the rotating rod 2017 drives the roller 2015 to move relative to the inner wall of the rectangular placement groove 1015 opened at the workbench 1012, so that it can be in the best clamping position for the thermoplastic plastic plate. At this time, the staff controls the electric slide rail 102 through the controller to drive the hydraulic cylinder 1021 to drive the installation frame 1022 and the cutting assembly 1023 to move to the best position, and then the placed thermoplastic plastic plate can be cut by starting the hydraulic cylinder 1021 and the cutting assembly 1023.

Claims

1. A device for cutting thermoplastic products after injection molding, comprising a mounting unit (100), a transmission unit (200) and a clamping unit (300), characterized in that: The mounting and placing unit (100) comprises a mounting base (101), the bottom of the mounting base (101) is fixedly mounted with supporting legs (1011), the four supporting legs (1011) are symmetrical with each other, a workbench (1012) is fixedly mounted above the mounting base (101), a side panel (1013) is fixedly mounted on the side wall of the workbench (1012), a top panel (1014) is fixedly mounted above the side panel (1013), a cavity is formed in the workbench (1012) and the side panel (1013), and a top panel (1014) is formed in the middle of the top of the workbench (1012). A rectangular placement slot (1015), a placement slot (1017) is provided in the middle of the rectangular placement slot (1015), a rectangular slot (1016) is provided in the middle of the side wall of the side plate (1013), an electric slide rail (102) is provided at the bottom of the top plate (1014), and two mutually symmetrical hydraulic cylinders (1021) are provided on the electric slide rail (102), a mounting frame (1022) is provided at the bottom of the two hydraulic cylinders (1021), and cutting assemblies (1023) are provided in the two mounting frames (1022), and the two cutting assemblies (1023) are symmetrical to each other; The transmission unit (200) comprises a servo motor (201), the servo motor (201) being mounted in an inner cavity of a workbench (1012), a first threaded rod (2011) being fixedly mounted on an output end of the servo motor (201), a first threaded sleeve (2012) being meshedly mounted on the first threaded rod (2011), both sides of the first threaded sleeve (2012) being provided with a first sliding mechanism, a circular mounting cylinder (203) being fixedly mounted above the first threaded rod (2011), the circular mounting cylinder (203) being fixedly mounted on the top of the first threaded rod (2011), and the circular mounting cylinder (203) being fixedly mounted on the top of the first threaded rod (2011). The inner wall of the shaped installation cylinder (203) is provided with four placement cavities (20311) distributed in a circumferential manner, and the inner cavities of the four placement cavities (20311) are all provided with a second sliding mechanism and a clamping mechanism, a moving mechanism is provided above the first threaded sleeve (2012), and the other end of the moving mechanism is connected to the positioning plate (2038), a connecting rod (2039) is movably penetrated in the middle of the positioning plate (2038), and a second threaded rod (205) is fixedly installed on the upper end of the connecting rod (2039), and the second A telescopic rod (2051) is fixedly mounted on the top of the threaded rod (205), a bearing (2052) is arranged on the top of the telescopic rod (2051), and the bearing (2052) is arranged above the inner cavity of the side plate (1013); a second threaded sleeve (2053) is meshingly mounted on the second threaded rod (2055), a third sliding mechanism is arranged on the side wall of the second threaded sleeve (2053), an L-shaped connecting rod (2013) is fixedly mounted on the bottom of the first threaded sleeve (2012), and the L-shaped connecting rod ( Two mutually symmetrical swing rods (2014) are movably mounted on the rectangular placement slot (1013), the two swing rods (2014) movably penetrate the placement slot (1017), the other ends of the two swing rods (2014) are movably connected to mounting bearings (2016), the two mounting bearings (2016) are provided with rotating rods (2017), both ends of the two rotating rods (2017) are provided with rollers (2015), and the two rollers (2015) are fitted and connected to the rectangular placement slot (1015); The clamping unit (300) comprises a fixing plate (302), the fixing plate (302) being fixedly mounted on the positioning plate (2038), the fixing plate (302) being movably inserted through the rectangular notch (1016), a fixing block (3021) being fixedly mounted on the bottom of the other end of the fixing plate (302), a limiting plate (3022) being fixedly mounted on the bottom of the fixing block (3021), and a squeezing mechanism being arranged above the fixing block (3021).

2. The device for cutting thermoplastic products after injection molding according to claim 1, characterized in that: The first sliding mechanism comprises two first sliding grooves (202), the two first sliding grooves (202) are respectively arranged on two opposite side walls of the inner cavity of the side plate (1013), the two first sliding grooves (202) are symmetrical to each other, and the inner cavities of the two first sliding grooves (202) are both slidably mounted with first sliding rods (2021), the two first sliding rods (2021) are symmetrical to each other, and one opposite side wall of the two first sliding rods (2021) is fixedly connected to the first threaded sleeve (2012).

3. The device for cutting thermoplastic products after injection molding according to claim 1, characterized in that: The second sliding mechanism comprises a plurality of first guide slots (2031), each of the first guide slots (2031) being respectively arranged on two opposite side walls of the inner cavity of the plurality of placement cavities (20311), each of the first guide slots (2031) being symmetrical with each other, each of the inner cavity of the first guide slots (2031) being slidably mounted with a first guide slider (2032), and each of the first guide sliders (2032) being symmetrical with each other.

4. The device for cutting thermoplastic products after injection molding according to claim 1, characterized in that: The clamping mechanism comprises a plurality of first movable plates (2033), both side walls of each of the first movable plates (2033) being fixedly mounted with first guide sliders (2032), one side wall of each of the first movable plates (2033) being fixedly connected with a first return spring (2035), the other end of each of the first return springs (2035) being fixedly connected to the inner wall of the placement cavity (20311), and one end of each of the first movable plates (2033) away from the first return spring (2035) being fixedly connected with a conical plate (2034), and each of the conical plates (2034) being distributed in a circular pattern.

5. The device for cutting thermoplastic products after injection molding according to claim 4, characterized in that: One end of the connecting rod (2039) away from the second threaded rod (205) is fixedly connected to a mounting column (2036), and four snap-fitting notches (2037) arranged in a circumferential distribution are formed around the mounting column (2036), and each of the snap-fitting notches (2037) fits with the conical plate (2034).

6. The device for cutting thermoplastic products after injection molding according to claim 1, characterized in that: The moving mechanism comprises four plug-in cylinders (2041) and four plug-in rods (204); the top ends of the four plug-in cylinders (2041) are vertically fixed on the positioning plate (2038); the four plug-in cylinders (2041) are distributed in a circle; the inner cavities of the four plug-in cylinders (2041) are provided with a fourth sliding mechanism; the four plug-in rods (204) are fixedly mounted on the first threaded sleeve (2012); the four plug-in rods (204) are distributed in a circle; and the four plug-in rods (204) respectively fit in with the four plug-in cylinders (2041).

7. The device for cutting thermoplastic products after injection molding according to claim 6, characterized in that: The fourth sliding mechanism comprises a plurality of second guide slots (2042), each of the second guide slots (2042) being respectively arranged on two opposite side walls of the inner cavity of the plug-in tube (2041), each of the second guide slots (2042) being symmetrical with each other, a second guide slider (2043) being slidably mounted in the inner cavity of each of the second guide slots (2042), each of the second guide sliders (2043) being symmetrical with each other, a second movable plate (2044) being fixedly connected to one side wall opposite to each other of each of the second guide sliders (2043), a second return spring (2045) being fixedly connected to the top of each of the second movable plates (2044), and the other end of the second return spring (2045) being fixedly connected to the inner wall of the plug-in tube (2041), and a plug-in rod (204) being fixedly connected to the bottom of each of the second movable plates (2044).

8. The device for cutting thermoplastic products after injection molding according to claim 1, characterized in that: The third sliding mechanism comprises two second sliding grooves (2054), the two second sliding grooves (2054) are respectively arranged on opposite side walls of the inner cavity of the side plate (1013), the two second sliding grooves (2054) are symmetrical to each other, the inner cavities of the two second sliding grooves (2054) are both slidably mounted with second sliding rods (2055), the two second sliding rods (2055) are symmetrical to each other, and opposite ends of the two second sliding rods (2055) are fixedly connected to the second threaded sleeve (2053).

9. The device for cutting thermoplastic products after injection molding according to claim 1, characterized in that: The extrusion mechanism comprises an inclined block (3012), the two inclined blocks (3012) are symmetrical to each other, the two inclined blocks (3012) are both provided with a slide rail (3011), the two slide rails (3011) are respectively provided on the side walls of the side plate (1013), the two inclined blocks (3012) are both provided with a swing arm (3013), the two swing arms (3013) are symmetrical to each other, the other ends of the two swing arms (3013) are movably connected to a placement plate (301), the placement plate (301) movably passes through the rectangular notch (1016), and the other end of the placement plate (301) is fixedly connected to the side wall of the second threaded sleeve (2053).

10. A method for cutting a thermoplastic product after injection molding, applied to the cutting device of any one of claims 4, 5 or 9, characterized in that: The steps are as follows: Step 1: First, a worker places a thermoplastic plastic plate on a rotating roller (2015). When the placement is completed, the worker holds the thermoplastic plastic plate while controlling the servo motor (201) to operate through a controller; Step 2: When the servo motor (201) is running, it will be able to drive the first threaded rod (2011) to rotate. When the first threaded rod (2011) rotates, it will be able to drive the first threaded sleeve (2012) to move vertically downward with the assistance of the first sliding mechanism. When the first threaded sleeve (2012) moves vertically downward, the first threaded sleeve (2012) will be able to drive the plug-in rod (204) to pull the plug-in tube (2041) to move downward. When the plug-in tube (2041) moves downward, it will be able to drive the positioning plate (203 8) vertically moving downward. When the positioning plate (2038) moves vertically downward, the second threaded rod (205) can be driven to move vertically downward with the assistance of the telescopic rod (2051) through the connecting rod (2039). When the positioning plate (2038) moves vertically downward, the fixing plate (302) can be driven to move vertically downward. When the fixing plate (302) moves vertically downward, the fixing block (3021) and the limiting plate (3022) can be driven to move vertically downward. At this time, the placed thermoplastic plastic plate can be limited. Step 3: When the first threaded rod (2011) rotates, it can drive the circular installation tube (203) to rotate, and when the circular installation tube (203) moves vertically downward, it can drive the installation column (2036) to rotate and move vertically downward and rotate with the assistance of the provided clamping slot (2037) through the conical plate (2034) provided in the inner cavity, and when the installation column (2036) moves vertically downward and rotates, it can drive the connecting rod (2039) to rotate, and when the connecting rod (2039) rotates, it can drive the second threaded rod (205) to rotate, and when the second threaded rod (205) rotates, it can drive the telescopic rod (2051) to rotate with the assistance of the bearing (2052); Step 4: When the second threaded rod (205) rotates, it can drive the second threaded sleeve (2053) to move vertically upward with the assistance of the third sliding mechanism. When the second threaded sleeve (2053) moves vertically upward, it can drive the placement plate (301) to move vertically upward. When the placement plate (301) moves vertically upward, it can drive the two tilting blocks (3012) to move horizontally relative to each other with the assistance of the slide rail (3011) through the swing arm (3013), so that the two tilting blocks (3012) are always pressed on the fixed block (3021), so that they can always limit the position of the placed thermoplastic plastic plate; Step 5: When the first threaded sleeve (2012) moves vertically downward, it will be able to drive the L-shaped connecting rod (2013) to move vertically downward. When the L-shaped connecting rod (2013) moves downward, it will drive the swing rod (2014) to pull the installation bearing (2016); and the rotating rod (2017) drives the roller (2015) to move relative to the inner wall of the rectangular placement groove (1015) opened at the workbench (1012), so that it can be in the best clamping position of the thermoplastic plastic plate. At this time, the staff controls the electric slide rail (102) through the controller to drive the hydraulic cylinder (1021) to drive the installation frame (1022) and the cutting assembly (1023) to move to the best position, and then the placed thermoplastic plastic plate can be cut by starting the hydraulic cylinder (1021) and the cutting assembly (1023).

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