Plastic product sprue cutting device

Abstract

The invention relates to the technical field of plastic pouring gate cutting, in particular to a plastic product pouring gate cutting device. The technical problems that an existing pouring gate cutting device cannot well fix a plastic reel, the plastic reel is prone to displacement in the pouring gate cutting process, and the pouring gate cutting quality of the plastic reel is low are solved. A plastic product sprue cutting device comprises a shell, a multi-stage sleeve hydraulic cylinder is arranged in the shell, a mounting frame is arranged on a first telescopic rod of the multi-stage sleeve hydraulic cylinder, and an ultrasonic cutter is arranged on a second telescopic rod of the multi-stage sleeve hydraulic cylinder. In the moving process of the guide rod, the two clamping blocks in each set can be driven to move in the direction away from each other, the clamping blocks can stretch out of the rotating frame, rubber pads on the clamping blocks can make contact with a machined part, the machined part can be clamped by the clamping blocks, in this way, the position of the machined part can be fixed in the cutting process, and the machining efficiency is improved. And displacement of the machined part in the cutting process is avoided, so that the cutting quality is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of plastic gate cutting, and particularly relates to a plastic product gate cutting device. BACKGROUND

[0002] Raw material tape (also known as raw rubber tape or uncured rubber tape) is a sealing material commonly used in pipeline and threaded connection to prevent gas or liquid leakage. It is made of polytetrafluoroethylene (PTFE) material, and thus has the characteristics of high temperature resistance, corrosion resistance, pressure resistance, etc. In the production process of the raw material tape, the manufacturer usually winds the raw material tape on a plastic reel to realize the packaging of the raw material tape. The plastic reel used to wind the raw material tape is usually processed and produced by injection molding, and the plastic reel is separated from the injection gate after injection molding.

[0003] The existing gate cutting device usually separates the gate from the plastic reel by using an ultrasonic cutter. However, the existing gate cutting device lacks good fixation of the plastic reel during cutting, and the plastic reel is prone to displacement during gate cutting, resulting in low quality of plastic reel gate cutting. SUMMARY

[0004] In order to overcome the shortcomings of the existing gate cutting device, which lacks good fixation of the plastic reel, the plastic reel is prone to displacement during gate cutting, and the quality of the plastic reel gate cutting is low, the present application provides a plastic product gate cutting device which can fix the workpiece in position during cutting to avoid displacement of the workpiece during cutting and improve the cutting quality.

[0005] Technical scheme: A plastic product gate cutting device comprises a housing, a multi-stage sleeve hydraulic cylinder is arranged in the housing, a mounting frame is arranged on a first telescopic rod of the multi-stage sleeve hydraulic cylinder, an ultrasonic cutter is arranged on a second telescopic rod of the multi-stage sleeve hydraulic cylinder, two lifting rods are slidably connected to the mounting frame, a pressure spring one is connected between each of the two lifting rods and the mounting frame, a placing plate is rotatably connected to the housing, three pressure springs two are connected between the placing plate and the housing, two limiting rods are arranged on the housing, and a workpiece is placed on the placing plate.

[0006] In one embodiment, a collecting groove is formed in the housing.

[0007] In one of the embodiments, a rotating mechanism is further included, which comprises a rotating frame rotatably connected between the two lifting rods, torsion springs connected between the two lifting rods and the rotating frame, two driving gears provided on the rotating frame, two driving teeth provided on the mounting frame, two jacks provided on the edges of the placing board, two column gears provided on the edges of the placing board to enable the placing board to rotate about the long side edges thereof, and two sliding teeth rotatably connected in the shell.

[0008] In one of the embodiments, a plurality of protruding portions are provided on the rotating frame.

[0009] In one of the embodiments, a clamping mechanism is further included, which comprises clamping blocks, a plurality of groups of clamping blocks slidably connected to the rotating frame, two clamping blocks in each group, a guide rod slidably connected in the rotating frame, a plurality of sliding grooves provided on the guide rod, the clamping blocks in each group being clamped to the guide rod, a plurality of reset springs I connected between the guide rod and the rotating frame, a top block slidably connected to each of the two telescopic rods, a plurality of pressing rods provided on the mounting frame, two tension springs I connected between each of the two top blocks and the two lifting rods, and a rubber pad provided on each of the clamping blocks.

[0010] In one of the embodiments, the top block is provided with a ring-shaped portion, which is tapered.

[0011] In one of the embodiments, a fixing mechanism is further included, which comprises a guide frame provided on the second telescopic rod of the multi-stage sleeve hydraulic cylinder, a fixing plate slidably connected in the shell, a plurality of clamping grooves formed in the fixing plate, and a plurality of tension springs II connected between the fixing plate and the shell.

[0012] In one of the embodiments, a positioning mechanism is further included, which comprises protruding blocks, a protruding block provided on each of the two lifting rods, the two protruding blocks being slidably connected to the shell, two clamping rods slidably connected to the shell, reset springs II connected between the two clamping rods and the shell, two guide plates provided on each of the two clamping rods, two positioning rods slidably connected to the shell, and the two positioning rods being clamped to the four guide plates.

[0013] In one of the embodiments, a fastening tooth rod is further included, two fastening tooth rods provided on the second telescopic rod of the multi-stage sleeve hydraulic cylinder, two fastening screws threadedly connected to the mounting frame, and a fastening gear provided on each of the two fastening screws.

[0014] The present application has the following advantages: 1, the extrusion rod will first contact and extrude the top block, and the top block will move towards the driving gear under the extrusion, the tension spring will be stretched, and the top block will extrude the guide rod during movement, the guide rod will extend into the rotating frame under the extrusion, the return spring will be compressed, and the guide rod will drive the two clamping blocks of each group to move away from each other during movement, the clamping blocks will extend out of the rotating frame, and the rubber pad on the clamping blocks will contact the workpiece, so that the clamping blocks can clamp the workpiece, and through this way, the workpiece can be fixed in position during cutting, avoiding displacement of the workpiece during cutting, thereby improving the cutting quality.

[0015] 2, the guide plate will extrude the positioning rod during movement, so that the two positioning rods will move towards each other, and the clamping rod and the positioning rod will push the workpiece to move to the specified position of the placing plate during movement, so that the workpiece is better aligned with the rotating frame, through this way, the workpiece can be quickly moved to the processing position, thereby improving the work efficiency.

[0016] 3, the guide frame will contact the fixed plate during movement, the guide frame will extrude the fixed plate, so that the fixed plate will move towards the workpiece, the tension spring II will be stretched, so that the workpiece will be clamped into the clamping groove of the fixed plate, thereby further fixing the workpiece on the rotating frame, through this way, the fixing effect of the workpiece is further strengthened, thereby further improving the cutting quality. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the present application.

[0018] Figure 2 It is a schematic diagram of the three-dimensional structure of the present application.

[0019] Figure 3 It is a schematic diagram of the cross-sectional three-dimensional structure of the present application.

[0020] Figure 4 It is a schematic diagram of the cross-sectional three-dimensional structure of the present application.

[0021] Figure 5 It is a schematic diagram of the cross-sectional three-dimensional structure of the present application. Figure 4 It is an enlarged schematic diagram of the three-dimensional structure of the present application.

[0022] Figure 6 It is a schematic diagram of the three-dimensional structure of the present application.

[0023] Figure 7 It is a schematic diagram of the three-dimensional structure of the present application.

[0024] Figure 8It is a sectional view of the clamping mechanism of the application.

[0025] Figure 9 It is a sectional view of the clamping mechanism of the application.

[0026] Figure 10 It is a sectional view of the clamping mechanism of the application.

[0027] Figure 11 It is a sectional view of the clamping mechanism of the application.

[0028] Figure 12 It is a sectional view of the clamping mechanism of the application.

[0029] Figure 13 It is a sectional view of the clamping mechanism of the application.

[0030] Figure 14 It is a sectional view of the clamping mechanism of the application. Figure 4 It is a sectional view of the clamping mechanism of the application.

[0031] In the figure: 1: shell, 2: multi-stage sleeve hydraulic cylinder, 3: mounting frame, 4: ultrasonic cutter, 5: lifting rod, 6: pressure spring one, 7: placement of the board, 8: pressure spring two, 9: limit rod, 10: workpiece, 111: rotating frame, 112: torsion spring, 113: drive gear, 114: drive gear, 115: top rod, 116: column gear, 117: sliding gear, 121: clamp block, 122: guide rod, 123: reset spring one, 124: top block, 125: extrusion rod, 126: tension spring one, 127: rubber pad, 131: guide frame, 132: fixed plate, 133: tension spring two, 141: protruding block, 142: clamping rod, 143: reset spring two, 144: guide plate, 145: positioning rod, 15: fastening gear, 16: fastening screw, 17: fastening gear. DETAILED DESCRIPTION

[0032] The application will be further described in detail below in conjunction with the drawings and specific embodiments, but the protection scope and application scope of the application are not limited.

[0033] Example 1: A plastic product sprue cutting device, such as Figures 1-8As shown, including the shell 1, the shell 1 is provided with a plurality of sleeve hydraulic cylinder 2, the first telescopic rod of the sleeve hydraulic cylinder 2 is provided with a mounting bracket 3, the second telescopic rod of the sleeve hydraulic cylinder 2 is provided with an ultrasonic cutter 4, the mounting bracket 3 is slidably connected with two lifting rods 5, the two lifting rods 5 and the mounting bracket 3 are connected with a pressure spring 6, the shell 1 is rotatably connected with a placing plate 7, the placing plate 7 and the shell 1 are connected with three pressure springs 8, the shell 1 is provided with two limiting rods 9, and the placing plate 7 is placed with a processing piece 10.

[0034] The shell 1 is provided with a collecting groove.

[0035] It also includes a rotating mechanism, the mounting bracket 3 is provided with a rotating mechanism, the rotating mechanism is used for overturning the processing piece 10, and the rotating mechanism includes a rotating frame 111, the rotating frame 111 is rotatably connected between the two lifting rods 5, the two lifting rods 5 and the rotating frame 111 are connected with torsion springs 112, the rotating frame 111 is provided with two drive gears 113, the mounting bracket 3 is provided with two drive tooth rods 114 and two top rods 115, the edges of the placing plate 7 are provided with two column gears 116, so that the placing plate 7 can rotate around the long side, and the shell 1 is slidably connected with two sliding tooth rods 117.

[0036] The rotating frame 111 is provided with a plurality of convex portions.

[0037] It also includes a clamping mechanism, the mounting bracket 3 is provided with a clamping mechanism, the clamping mechanism is used for fixing the processing piece 10, and the clamping mechanism includes a clamping block 121, a plurality of groups of clamping blocks 121 are slidably connected on the rotating frame 111, each group has two clamping blocks 121, a guide rod 122 is slidably connected in the rotating frame 111, the guide rod 122 is provided with a plurality of sliding grooves, each group of clamping blocks 121 is clamped with the guide rod 122, a plurality of reset springs 123 are connected between the guide rod 122 and the rotating frame 111, a top block 124 is slidably connected on the two telescopic rods, a plurality of extrusion rods 125 are arranged on the mounting bracket 3, two tension springs 126 are connected between the two top blocks 124 and the two lifting rods 5, respectively, and a rubber pad 127 is arranged on each clamping block 121.

[0038] The top block 124 is provided with an annular portion, and the annular portion is tapered.

[0039] At the beginning, the user will put the injection molding finished workpiece 10 with gate on the placing plate 7, the side of the workpiece 10 with gate is attached to the placing plate 7, after the user puts the workpiece 10 on the designated position of the placing plate 7, the user controls the first telescopic rod of the multi-stage sleeve hydraulic cylinder 2 to elongate, the first telescopic rod of the multi-stage sleeve hydraulic cylinder 2 will drive the mounting frame 3, the ultrasonic cutter 4, the lifting rod 5 and the rotating frame 111 to move together to the direction close to the workpiece 10, the protruding part on the rotating frame 111 will extend into the round hole of the workpiece 10, the lifting rod 5 will extend into the mounting frame 3 after continuing to move and contacting the limiting rod 9, the compression spring one 6 is compressed, the mounting frame 3 continues to move to drive the driving gear rod 114, the extrusion rod 125 and the jacking rod 115 to move together, the extrusion rod 125 will first contact and extrude the top block 124, the top block 124 will move to the direction close to the driving gear 113 after being extruded, the tension spring one 126 is stretched, the top block 124 will extrude the guide rod 122 during the movement, the guide rod 122 will extend into the rotating frame 111 after being extruded, the reset spring one 123 is compressed, the guide rod 122 will drive two clamping blocks 121 of each group to move to the direction away from each other during the movement, the clamping block 121 will extend out of the rotating frame 111, the rubber pad 127 on the clamping block 121 will contact the workpiece 10, so that the clamping block 121 will clamp the workpiece 10, after the clamping block 121 clamps the workpiece 10, the lifting rod 5 continues to move, the extrusion of the extrusion rod 125 to the top block 124 is no longer increased, the jacking rod 115 continues to move to extend into the shell 1, the jacking rod 115 will extrude the sliding gear rod 117 after extending into the shell 1, so that the sliding gear rod 117 will move to the direction away from the jacking rod 115, the sliding gear rod 117 is engaged with the column gear 116, the rotation of the column gear 116 will drive the placing plate 7 to rotate, so that the placing plate 7 will rotate to the direction away from the workpiece 10, the compression spring one 6 is compressed, since the workpiece 10 is clamped by the clamping block 121, the placing plate 7 will be separated from the workpiece 10 during the rotation, so that the workpiece 10 is suspended, after the placing plate 7 rotates to contact the shell 1, the extrusion force of the jacking rod 115 to the sliding gear rod 117 is no longer increased, then, the driving gear rod 114 continues to move to engage with the driving gear 113, the rotation of the driving gear 113 will drive the rotating frame 111 to rotate 180 degrees, the torsion spring 112 is twisted, the rotation of the rotating frame 111 will drive the workpiece 10 to rotate together, so that the side of the workpiece 10 with gate faces the ultrasonic cutter 4, after the driving gear 113 rotates 180 degrees, the first telescopic rod of the multi-stage sleeve hydraulic cylinder 2 stops elongating, then, the user controls the second telescopic rod of the multi-stage sleeve hydraulic cylinder 2 to elongate, the second telescopic rod of the multi-stage sleeve hydraulic cylinder 2 will drive the ultrasonic cutter 4 to move to the direction close to the workpiece 10, the head of the ultrasonic cutter 4 contacts the workpiece 10, then the user starts the ultrasonic cutter 4, the ultrasonic cutter 4 will cut off the gate on the workpiece 10, so that the workpiece 10 completes the gate cutting,After the cutting is completed, the sprue cut off falls on the placing plate 7 and slides into the collecting groove of the shell 1. After the cutting is completed, the user controls the second telescopic rod of the multi-stage sleeve hydraulic cylinder 2 to retract, which drives the ultrasonic cutter 4 to reset. After the ultrasonic cutter 4 is reset, the user controls the first telescopic rod of the multi-stage sleeve hydraulic cylinder 2 to retract and reset. The first telescopic rod of the multi-stage sleeve hydraulic cylinder 2 resets, which drives the mounting frame 3 to reset. The mounting frame 3 resets, which drives the extrusion rod 125, the top rod 115 and the driving gear rod 114 to reset. The driving gear rod 114 resets, which drives the driving gear 113 to reset. The driving gear 113 resets, which drives the rotating frame 111 to reset. The torsion spring 112 resets. The top rod 115 resets and the sliding gear rod 117 is disengaged. The pressure spring one 6 resets, which drives the placing plate 7 to reset. The placing plate 7 resets, which drives the column gear 116 to reset. The column gear 116 resets, which drives the sliding gear rod 117 to reset. The extrusion rod 125 resets and the top block 124 is disengaged. The tension spring one 126 resets, which drives the top block 124 to reset. The top block 124 resets and no longer extrudes the guide rod 122. The reset spring one 123 resets, which drives the guide rod 122 to reset. The guide rod 122 resets, which drives the clamping block 121 to reset, so that the clamping block 121 and the workpiece 10 are disengaged. The workpiece 10 falls on the placing plate 7. After the pressure spring one 6 resets, the mounting clamp continues to reset, which drives the lifting rod 5 to reset. The lifting rod 5 resets, which drives the rotating frame 111 to reset. After the first telescopic rod of the multi-stage sleeve hydraulic cylinder 2 resets, the user turns off the multi-stage sleeve hydraulic cylinder 2. The user takes away the cut workpiece 10 and the sprue to continue the next cutting process. In this way, the workpiece 10 can be fixed in position during the cutting process, avoiding displacement of the workpiece 10 during the cutting process, thereby improving the cutting quality.

[0040] Example 2: Based on example 1, as shown in Figures 9-13 It further includes a fixing mechanism. The fixing mechanism is arranged in the shell 1 and is used to further fix the workpiece 10. The fixing mechanism includes a guide frame 131. The guide frame 131 is arranged on the second telescopic rod of the multi-stage sleeve hydraulic cylinder 2. A fixing plate 132 is slidably connected in the shell 1. A plurality of clamping grooves are formed in the fixing plate 132. A plurality of tension springs two 133 are connected between the fixing plate 132 and the shell 1.

[0041] It further includes a positioning mechanism. The positioning mechanism is arranged in the shell 1 and is used to correct the position of the workpiece 10. The positioning mechanism includes a protruding block 141. The protruding block 141 is arranged on each of the two lifting rods 5. The protruding block 141 is slidably connected with the shell 1. Two clamping rods 142 are slidably connected with the shell 1. A reset spring two 143 is connected between each of the clamping rods 142 and the shell 1. Two guide plates 144 are arranged on each of the clamping rods 142. Two positioning rods 145 are slidably connected with the shell 1. The positioning rods 145 are respectively clamped with the four guide plates 144.

[0042] Further comprising the fastening tooth rod 15, two fastening tooth rods 15 are arranged on the second telescopic rod of the multi-stage sleeve hydraulic cylinder 2, two fastening screw rods 16 are arranged on the mounting frame 3 through threaded connection, and two fastening tooth gears 17 are arranged on the two fastening screw rods 16.

[0043] In the moving process of the lifting rod 5 to the direction close to the limiting rod 9, the lifting rod 5 drives the protruding block 141 to move together, the protruding rod is pressed in the moving process, so that the two clamping rods 142 move to the direction close to each other, the reset spring two 143 is compressed, the clamping rod 142 drives the guide plate 144 to move together in the moving process, the guide plate 144 is pressed in the moving process, so that the two positioning rods 145 move to the direction close to each other, the clamping rod 142 and the positioning rod 145 drive the workpiece 10 to move to the specified position of the placing plate 7 in the moving process, so that the workpiece 10 is better aligned with the rotating frame 111, in this way, the workpiece 10 can be quickly moved to the machining position, so as to improve the work efficiency, the protruding block 141 is reset, the protruding block 141 is reset and the clamping rod 142 is separated, the reset spring two 143 resets the clamping rod 142, the guide plate 144 and the positioning rod 145, in the elongation process of the second telescopic rod of the multi-stage sleeve hydraulic cylinder 2, the second telescopic rod of the multi-stage sleeve hydraulic cylinder 2 drives the guide frame 131 and the fastening tooth rod 15 to move together to the direction close to the workpiece 10, the guide frame 131 is in contact with the fixed plate 132 in the moving process, the guide frame 131 presses the fixed plate 132, so that the fixed plate 132 moves to the direction close to the workpiece 10, the tension spring two 133 is stretched, so that the workpiece 10 is clamped into the clamping groove of the fixed plate 132, so as to further fix the workpiece 10 on the rotating frame 111, in this way, the fixing effect of the workpiece 10 is further strengthened, so as to further improve the cutting quality, the fastening tooth rod 15 is in mesh with the fastening tooth gear 17 in the moving process, the fastening tooth gear 17 rotates to drive the fastening screw rod 16 to rotate, the fastening screw rod 16 is screwed into the mounting frame 3, so that the lifting rod 5 is locked, after the fastening tooth rod 15 is separated from the fastening tooth gear 17, the ultrasonic cutter 4 contacts the workpiece 10, after the cutting is completed, the second telescopic rod of the multi-stage sleeve hydraulic cylinder 2 resets the fastening tooth rod 15 and the guide frame 131, the fastening tooth rod 15 drives the fastening tooth gear 17 to flip and reset, the fastening tooth gear 17 resets the fastening screw rod 16, the guide frame 131 is separated from the fixed plate 132, and the tension spring two 133 resets the fixed plate 132.

[0044] The above only describes the preferred embodiments of the present application and is not used to limit the present application, any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A gate cutting device for plastic products, characterized in that, It includes an outer shell (1), a multi-stage sleeve hydraulic cylinder (2) is provided inside the outer shell (1), a mounting bracket (3) is provided on the first telescopic rod of the multi-stage sleeve hydraulic cylinder (2), an ultrasonic cutter (4) is provided on the second telescopic rod of the multi-stage sleeve hydraulic cylinder (2), two lifting rods (5) are slidably connected on the mounting bracket (3), and a pressure spring (6) is connected between the two lifting rods (5) and the mounting bracket (3), a placement plate (7) is rotatably connected on the outer shell (1), three pressure springs (8) are connected between the placement plate (7) and the outer shell (1), two limit rods (9) are provided on the outer shell (1), and a workpiece (10) is placed on the placement plate (7).

2. The plastic product gate cutting device as described in claim 1, characterized in that, The outer shell (1) has a collection groove.

3. The plastic product gate cutting device as described in claim 1, characterized in that, It also includes a rotating mechanism, which includes a rotating frame (111), a rotating frame (111) rotatably connected between two lifting rods (5), a torsion spring (112) connected between the two lifting rods (5) and the rotating frame (111), two drive gears (113) on the rotating frame (111), two drive racks (114) and two push rods (115) on the mounting frame (3), two spur gears (116) on both sides of the edge of the placement tray (7), so that the placement tray (7) can rotate with its long side as the axis, and two sliding racks (117) are slidably connected inside the outer shell (1).

4. The plastic product gate cutting device as described in claim 3, characterized in that, The rotating frame (111) has several protrusions.

5. A plastic product gate cutting device as described in claim 3, characterized in that, It also includes a clamping mechanism, which includes clamping blocks (121). Several sets of clamping blocks (121) are slidably connected on the rotating frame (111), with two clamping blocks (121) in each set. A guide rod (122) is slidably connected inside the rotating frame (111). Several sliding grooves are provided on the guide rod (122). Each set of clamping blocks (121) is engaged with the guide rod (122). Several reset springs (123) are connected between the guide rod (122) and the rotating frame (111). Top blocks (124) are slidably connected on both telescopic rods. Several extrusion rods (125) are provided on the mounting frame (3). Two tension springs (126) are connected between the two top blocks (124) and the two lifting rods (5). A rubber pad (127) is provided on each clamping block (121).

6. The plastic product gate cutting device as described in claim 5, characterized in that, The top block (124) has an annular portion, which is cone-shaped.

7. The plastic product gate cutting device as described in claim 5, characterized in that, It also includes a fixing mechanism, which includes a guide frame (131), a guide frame (131) on the second telescopic rod of the multi-stage sleeve hydraulic cylinder (2), a fixing plate (132) slidingly connected inside the outer shell (1), a number of slots on the fixing plate (132), and a number of tension springs (133) connecting the fixing plate (132) and the outer shell (1).

8. A plastic product gate cutting device as described in claim 7, characterized in that, It also includes a positioning mechanism, which includes a protrusion (141). Both lifting rods (5) are provided with protrusions (141). Both protrusions (141) are slidably connected to the outer shell (1). Two clamping rods (142) are slidably connected to the outer shell (1). A reset spring (143) is connected between the two clamping rods (142) and the outer shell (1). Two guide plates (144) are provided on both clamping rods (142). Two positioning rods (145) are slidably connected to the outer shell (1). The two positioning rods (145) are respectively engaged with the four guide plates (144).

9. A plastic product gate cutting device as described in claim 8, characterized in that, It also includes a fastening rack (15), and two fastening racks (15) are provided on the second telescopic rod of the multi-stage sleeve hydraulic cylinder (2). Two fastening screws (16) are connected to the mounting bracket (3) by threads, and fastening gears (17) are provided on both fastening screws (16).

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