Linear cutting device for injection mold machining

Abstract

The invention relates to the technical field of injection mold machining, in particular to a linear cutting device for injection mold machining, which comprises a moving mechanism for driving a cutting line to move and a positioning mechanism for fixing a to-be-cut mold, the moving mechanism comprises a moving frame, and a line adjusting mechanism and a transverse plate are fixedly connected in the moving frame; the transverse plate moves below the positioning mechanism, the wire adjusting mechanism moves above the positioning mechanism, the wire adjusting mechanism comprises a transverse frame, the transverse frame is fixedly connected to the interior of the moving frame, a tooth disc is rotationally installed in the center of the transverse frame, and a sliding rail is fixedly connected to the tooth disc in a penetrating mode; the injection mold is fixed to the positioning mechanism, the position of the wire pulling wheel is controlled, and the wire pulling wheel pulls the cutting wire, so that the cutting wire is inclined or vertical, is matched with the tooth disc to rotate and can move in the conical shape, the vertical face, the inclined face and the conical face of the positioned injection mold can be cut, the machining range is large, and the applicability is improved.

Description

Technical Field

[0001] The invention relates to the field of injection mold processing, in particular to a wire cutting device for injection mold processing. Background Art

[0002] Injection molding is a molding method that combines injection and molding. The molten plastic material is injected into the injection mold, and the plastic material is poured into every space inside the injection mold. After cooling and molding, the plastic product is formed by demolding. The injection mold is a pre-made mold used for large-scale production of plastic products. When the injection mold is made and processed, it needs to go through processes such as cutting and grinding. Among them, the wire cutting device is a commonly used cutting device. It uses a moving metal wire (molybdenum wire, copper wire or alloy wire) as an electrode wire. The pulse electric spark discharge between the electrode wire and the workpiece generates a high temperature to melt or vaporize the metal, forming a slit, thereby cutting out the parts. The processing method has a precise cutting surface and high cutting efficiency.

[0003] Existing wire cutting devices for injection mold processing, such as the wire cutting machine proposed in patent application number "CN202311226241.3", include machine tools, work tables, tooling, baffles, limiting plates and other structures. The baffle blocks the working fluid from splashing, and the baffle and the limiting plate slide together. A locking assembly for locking the baffle is provided on the limiting plate, which has the effect of improving the safety of the wire cutting machine.

[0004] However, the prior art has defects. Its cutting line is vertically oriented. When the object to be cut is positioned, the object can only be cut vertically. The cutting surface is a vertical surface, and an inclined surface or a conical surface cannot be cut. Objects that require cutting of inclined surfaces or conical surfaces cannot be cut. The processing range is small and the applicability needs to be improved. Therefore, a wire cutting device for injection mold processing is proposed. Summary of the invention

[0005] The object of the present invention is to provide a wire cutting device for injection mold processing to solve the problems raised in the above background technology.

[0006] The purpose of the present invention can be achieved through the following technical solutions: A wire cutting device for processing injection molds, comprising a moving mechanism for driving a cutting wire to move and a positioning mechanism for fixing a mold to be cut, wherein the moving mechanism comprises a moving frame, a wire adjustment mechanism and a horizontal plate are fixedly connected inside the moving frame, the horizontal plate moves below the positioning mechanism, and the wire adjustment mechanism moves above the positioning mechanism; The line adjustment mechanism includes a transverse frame, which is fixed to the inside of the mobile frame. A toothed disc is rotatably installed at the center of the transverse frame. A slide rail is fixedly connected to the toothed disc. One end of the slide rail is located at the center of the toothed disc, and the other end is located at the edge of the toothed disc. A wire pulley is slidably connected to the slide rail. One end of the cutting line passes through the inside of the wire pulley and passes through the center of the top of the mobile frame, and the other end passes through the center of the transverse plate. The cutting line is in a taut state.

[0007] Preferably, a toothed plate is fixedly connected to one side of the pulley, the toothed plate is inserted into the toothed disc, a servo motor 4 is fixedly connected to the upper end of the toothed disc, a driving gear is fixedly connected to the output end of the servo motor 4, and the driving gear is meshed with the toothed plate for transmission; The upper end of the transverse frame is fixedly connected to a servo motor three, and the output end of the servo motor three is fixedly connected to a steering gear. The steering gear rotates inside the transverse frame, and the steering gear is meshed with the teeth of the side wall of the gear wheel for transmission.

[0008] Preferably, a U-shaped frame is fixedly connected to the center of the top of the mobile frame, a sealing frame is fixedly connected to the center of the U-shaped frame, a pressing plate is sealingly and slidably connected inside the sealing frame, one side of the pressing plate is plugged into the sealing frame, and a roller is rotatably installed at one end of the pressing plate located outside the sealing frame; The cutting line passes through one end of the movable frame and the center position of the upper end of the U-shaped frame, and the cutting line is located in the U-shaped frame and is in close contact with the roller. A spring is fixedly connected between the side of the pressure plate away from the roller and the inner wall of the sealing frame. The spring is in a compressed state, and a pressure gauge for detecting the air pressure in the space where the spring is located is fixedly connected to the sealing frame.

[0009] Preferably, the positioning mechanism includes a base, one side of the base is fixedly connected to a transverse electric slide via a connecting plate, the transverse electric slide is parallel to the base, the moving output end of the transverse electric slide is fixedly connected to a vertical electric slide, and the lower end of the movable frame is fixedly connected to the moving output end of the vertical electric slide.

[0010] Preferably, two groups of mutually symmetrical brackets are fixedly connected to the base, and L-shaped plates are fixedly connected to the upper ends of the two groups of brackets. Two groups of supporting clamping mechanisms are installed on the upper ends of the L-shaped plates, and the four groups of supporting clamping mechanisms jointly support and position the cutting mold; The supporting and clamping mechanism includes a corrugated column, which is vertically slidably connected to an L-shaped plate. A servo motor is fixedly connected to the upper end of the L-shaped plate. A vertical gear is fixedly connected to the output end of the servo motor. The vertical gear is meshed with the side wall of the corrugated column for transmission. The vertical gear is used to control the lifting and lowering of the corrugated column. A supporting arm is fixedly connected to the top of the corrugated column. A clamping seat is fixedly connected to the end of the supporting arm. The clamping seat is clamped and matched with the bottom of the side wall of the mold to be cut.

[0011] Preferably, the lower end of the L-shaped plate is fixedly connected to a servo motor 2, the output end of the servo motor 2 is fixedly connected to a transverse gear, the lower end of the L-shaped plate is rotatably mounted with a flat gear, the flat gear and the transverse gear are in the same horizontal plane, and the transverse gear and the flat gear are meshed for transmission; The side wall of the corrugated column is provided with a vertical groove, the width of the vertical groove is smaller than the thickness of the vertical gear, the corrugated column passes through the flat gear, and the corrugated column and the flat gear are coaxial, a protrusion is fixedly connected to the inner wall of the flat gear, the protrusion is located in the vertical groove, and the protrusion and the vertical groove are slidably matched.

[0012] Preferably, both groups of L-shaped plates are provided with sliding grooves, which are located between the two groups of supporting and clamping mechanisms. A notch is provided at one end of the sliding groove away from the base, and the notch is located on the side of the L-shaped plate close to the mold to be cut. The sliding groove and the notch both pass through the bracket, and pre-support mechanisms are slidably connected in both groups of sliding grooves. The pre-support mechanism supports the bottom of the component to be cut, and the pre-support mechanism cooperates with the notch.

[0013] Preferably, the pre-support mechanism includes a sliding seat, which is slidably connected in a slide groove, a threaded column is threadedly connected to the top of the sliding seat, and a support plate is rotatably connected to the upper end of the side wall of the threaded column, and the support plate is used to support the bottom of the mold to be cut.

[0014] Preferably, both groups of slide grooves are slidably connected with sliders, the sliders are located between the sliding seat and the base, and fixing rods are fixedly connected on both sides of the movable frame. The two groups of fixing rods are respectively plug-connected with the two groups of sliders, and the fixing rods are used to drive the sliders to slide.

[0015] Preferably, a water spray mechanism is fixedly connected to the upper end of the transverse frame, a collecting tray is snap-fitted and installed at the bottom of the inner wall of the movable frame, and a non-woven fabric is provided inside the collecting tray to prevent liquid from splashing.

[0016] Beneficial effects of the present invention: 1. The present invention fixes the injection mold on the positioning mechanism, and the cutting line passes through the horizontal plate, the wire pulley, and the top of the movable frame. One end is connected to the wire drum, and the other end is connected to the wire take-up drum. When the wire pulley is coaxial with the toothed disc, the cutting line is in a vertical state, and the movable frame can move to cut the vertical surface of the injection mold. The wire pulley slides in the slide rail to pull the cutting line. At this time, the cutting line is in an inclined state, and the movable frame can move to cut the inclined surface of the injection mold. At this time, the toothed disc rotates, driving the inclined cutting line to rotate around the center of the toothed disc. The cutting line can cut the conical surface of the injection mold. The present device can cut the vertical surface, inclined surface and conical surface of the positioned injection mold, with a large processing range and improved applicability.

[0017] 2. The present invention installs the pre-support mechanism in the slide groove, and the support plates on the two groups of pre-support mechanisms pre-support the mold to be cut, so as to prevent the mold to be cut from being held while adjusting the support clamping mechanism, and facilitates the support clamping mechanism to position the mold to be cut. After positioning, there is no need to spend time removing the pre-support component, and the movement of the mobile frame can be directly controlled. The wire cutting is started, and the movement of the mobile frame will drive the slider to slide through the fixed rod, so that the slider pushes the pre-support component until the pre-support component falls through the notch, and the pre-support component can be taken out, and the pre-support component can be automatically removed by the mobile frame, which is convenient and time-saving. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative work. Figure 1 It is a schematic diagram of the overall front structure of the present invention; Figure 2 It is a schematic diagram of the overall back structure of the present invention; Figure 3 It is a schematic diagram of the structure of the mobile frame of the present invention; Figure 4 It is a schematic diagram of the cross-sectional structure of the mobile frame of the present invention; Figure 5 The present invention Figure 4 A schematic diagram of the structure at A; Figure 6 It is a schematic diagram of the positioning mechanism structure of the present invention; Figure 7 It is a schematic diagram of the bottom structure of the L-shaped plate of the present invention; Figure 8 The present invention Figure 7 A schematic diagram of the structure at B; The reference numerals in the figures are as follows: 1. Horizontal electric slide; 11. Vertical electric slide; 2. Mobile frame; 21. Horizontal board; 22. Fixed rod; 23. Guide wheel; 24. Collecting plate; 25. Non-woven fabric; 3. Base; 31. Bracket; 32. L-shaped plate; 33. Slide; 34. Notch; 35. Slider; 36. Support rod; 4. Corrugated column; 41. Support arm; 42. Card seat; 43. Servo motor 1; 44. Vertical gear; 45. Servo motor 2; 46. Horizontal gear; 47. Flat gear Wheel; 48, vertical groove; 5, mold to be cut; 6, sliding seat; 61, threaded column; 62, support plate; 7, horizontal frame; 71, toothed plate; 72, slide rail; 73, wire pulley; 74, servo motor three; 75, steering gear; 76, toothed plate; 77, servo motor four; 78, driving gear; 8, U-shaped frame; 82, sealing frame; 83, pressure gauge; 84, spring; 85, pressure plate; 86, roller; 9, cutting line; 10, water spray mechanism. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] The invention discloses a wire cutting device for processing an injection mold. The injection mold belongs to the field of industrial products. The wire cutting device for processing the injection mold belongs to the manufacturing of industrial automatic control systems and a machine tool field bus control system. The device is used for wire cutting of the injection mold and has the function of cutting vertical surfaces, inclined surfaces and conical surfaces of the injection mold.

[0021] A wire cutting device for injection mold processing, such as Figure 1-Figure 8 As shown, it includes a moving mechanism for driving the cutting line to move and a positioning mechanism for fixing the cutting mold 5 to be cut. The moving mechanism includes a moving frame 2. The moving frame 2 has a wire adjustment mechanism and a horizontal plate 21 fixed inside. The horizontal plate 21 moves below the positioning mechanism, and the wire adjustment mechanism moves above the positioning mechanism.

[0022] During wire electrospark cutting, the cutting wire is connected to the negative electrode, and the mold 5 to be cut is connected to the positive electrode of the motor. Pulse electric spark discharge occurs between the two, generating high temperature to melt or vaporize the metal to form a cut. Molybdenum wire can be used for the cutting wire.

[0023] The line adjustment mechanism includes a transverse frame 7, which is fixed to the inside of the mobile frame 2. A toothed disc 71 is rotatably installed at the center of the transverse frame 7. A slide rail 72 is fixedly connected to the toothed disc 71. One end of the slide rail 72 is located at the center of the toothed disc 71, and the other end is located at the edge of the toothed disc 71. A wire pulley 73 is slidably connected to the slide rail 72. One end of the cutting line passes through the inside of the wire pulley 73 and passes through the center of the top of the mobile frame 2, and the other end passes through the center of the transverse plate 21. The cutting line is in a taut state.

[0024] The moving mechanism drives the cutting line to move and cuts the mold 5 to be cut fixed in the positioning mechanism. The cutting line passes through the center of the horizontal plate 21, the center of the wire pulley 73, and the center of the top of the moving frame 2 in sequence. The lower end is connected to the wire pay-off drum, and the upper end is connected to the wire take-up drum. The wire pay-off drum and the wire take-up drum are both existing technologies, and are driven to rotate by motors and other equipment to allow the cutting line to be unwound and reeled.

[0025] By fixing the injection mold on the positioning mechanism, when the wire pulling wheel 73 slides to be coaxial with the toothed disk 71, the cutting line is in a vertical state, and the movable frame 2 can move to cut the vertical surface of the injection mold (the horizontal surface only needs to turn the mold 5 to be cut to position, so that the mold 5 to be cut is flipped 90 degrees and then positioned again, and the mold 5 to be cut can be cut at a horizontal plane that is 90 degrees to the vertical surface). When the wire pulling wheel 73 slides in the slide rail 72 to be not coaxial with the toothed disk 71, the wire pulling wheel 73 pulls the cutting line. At this time, the cutting line between the transverse frame 7 and the transverse plate 21 is in an inclined state, and the movable frame 2 can move to cut the inclined surface of the injection mold. When the cutting line is inclined, the toothed disk 71 is controlled to rotate, and the wire pulling wheel 73 drives the inclined cutting line to rotate around the center of the toothed disk 71. The cutting line can cut a conical surface of the injection mold. The present device can cut vertical surfaces, inclined surfaces and conical surfaces of the positioned injection mold, with a large processing range and improved applicability.

[0026] like Figure 1-Figure 5 As shown, a toothed plate 76 is fixedly connected to one side of the pulling wheel 73, and the toothed plate 76 is inserted into the toothed disc 71. A servo motor 77 is fixedly connected to the upper end of the toothed disc 71, and a driving gear 78 is fixedly connected to the output end of the servo motor 77. The driving gear 78 is meshed with the toothed plate 76 for transmission.

[0027] A corresponding rectangular opening is provided at the upper end of the toothed disc 71 above the toothed plate 76, so that the driving gear 78 can mesh with the toothed plate 76 for transmission through the rectangular opening. When the position of the wire pulling wheel 73 needs to be adjusted, the servo motor four 77 drives the toothed plate 76 to slide through the driving gear 78, thereby pushing and pulling the wire pulling wheel 73, so that the wire pulling wheel 73 slides in the slide rail 72, and the servo motor four 77 stops running, and the wire pulling wheel 73 is positioned.

[0028] A servo motor 3 74 is fixedly connected to the upper end of the transverse frame 7 , and a steering gear 75 is fixedly connected to the output end of the servo motor 3 74 . The steering gear 75 rotates inside the transverse frame 7 , and the steering gear 75 meshes with the teeth of the side wall of the gear plate 71 for transmission.

[0029] The servo motor 3 74 controls the steering gear 75 to rotate, and the steering gear 75 meshes with the teeth on the side wall of the gear plate 71 to rotate the gear plate 71.

[0030] Servo motor three 74 and servo motor four 77 both use servo motors of model TF-N20F.

[0031] like Figure 1-Figure 5 As shown, a U-shaped frame 8 is fixedly connected to the top center of the movable frame 2, a sealing frame 82 is fixedly connected to the center of the U-shaped frame 8, a pressure plate 85 is sealingly and slidably connected inside the sealing frame 82, one side of the pressure plate 85 is plugged into the sealing frame 82, and a roller 86 is rotatably installed on one end of the pressure plate 85 located outside the sealing frame 82.

[0032] The cutting line passes through one end of the movable frame 2 and the center position of the upper end of the U-shaped frame 8, and the position of the cutting line inside the U-shaped frame 8 is close to the roller 86. A spring 84 is fixedly connected between the side of the pressure plate 85 away from the roller 86 and the inner wall of the sealing frame 82. The spring 84 is in a compressed state. A pressure gauge 83 for detecting the air pressure in the space where the spring 84 is located is fixedly connected to the sealing frame 82.

[0033] The U-shaped frame 8 is installed upside down in the middle position of the top of the moving frame 2. The cutting line passes through the top of the moving frame 2, the side wall of the roller 86, and the top center of the U-shaped frame 8 in sequence. Since the sealing frame 82 is in the center of the U-shaped frame 8, after the cutting line passes through the roller 86, the shape of the cutting line in the U-shaped frame 8 is greater than the size. The cutting line will squeeze the roller 86, so that the pressure plate 85 squeezes the spring 84, and the barometer detects the air pressure in the space where the spring 84 is located. When the cutting line is overly tight due to tilting, the air pressure detected by the barometer increases, and a signal is transmitted to the external controller, thereby controlling the release of the wire reel. When the cutting line changes from tilted to vertical, resulting in relaxation, the extrusion force of the cutting line on the roller 86 becomes smaller, and the spring 84 pushes the pressure plate 85. The barometer detects the decrease in air pressure, thereby enabling the external controller to control the take-up reel to take up the wire, so that the cutting line is tight.

[0034] like Figure 1-Figure 2 As shown, the positioning mechanism includes a base 3, a transverse electric slide 1 is fixedly connected to one side of the base 3 via a connecting plate, the transverse electric slide 1 is parallel to the base 3, the moving output end of the transverse electric slide 1 is fixedly connected to the vertical electric slide 11, and the lower end of the movable frame 2 is fixedly connected to the moving output end of the vertical electric slide 11.

[0035] The installation angles of the horizontal electric slide 1 and the vertical electric slide 11 are different. Both are in a vertical state. The model is PA1000-ST242-C-SR. The installation position of the horizontal electric slide 1 is fixed, and its mobile output end drives the vertical electric slide 11 to move left and right. The mobile output end of the vertical electric slide 11 drives the mobile frame 2 to move forward and backward. The horizontal electric slide 1 and the vertical electric slide 11 cooperate to allow the mobile frame 2 to move forward and backward, left and right, which is convenient for cutting the mold 5 to be cut by the cutting line.

[0036] In order to increase the moving stability of the mobile frame 2, a support rod 36 can be fixed to the base 3. The support rod is located below the mobile frame 2 to support the mobile frame 2. At the same time, there is a certain distance between the support rod and the vertical electric slide 11 to avoid affecting the movement of the vertical electric slide 11.

[0037] like Figure 1 , Figure 2 , Figure 6 As shown, two groups of mutually symmetrical brackets 31 are fixedly connected to the base 3, and L-shaped plates 32 are fixedly connected to the upper ends of the two groups of brackets 31. Two groups of supporting clamping mechanisms are installed on the upper ends of the L-shaped plates 32. The four groups of supporting clamping mechanisms jointly support and position the cutting mold 5.

[0038] The supporting and clamping mechanism includes a corrugated column 4, which is vertically slidably connected to an L-shaped plate 32. A servo motor 43 is fixedly connected to the upper end of the L-shaped plate 32. A vertical gear 44 is fixedly connected to the output end of the servo motor 43. The vertical gear 44 is meshed with the side wall of the corrugated column 4 for transmission. The vertical gear 44 is used to control the lifting and lowering of the corrugated column 4. A supporting arm 41 is fixedly connected to the top of the corrugated column 4. A clamping seat 42 is fixedly connected to the end of the supporting arm 41. The clamping seat 42 is clamped and matched with the bottom of the side wall of the mold 5 to be cut.

[0039] There are four groups of supporting and clamping mechanisms in total, which clamp and position the mold 5 to be cut at four points, and suspend and position the mold 5 to be cut to prevent the cutting line from being blocked by parts other than the mold.

[0040] The servo motor 43 controls the rotation of the vertical gear 44, and the vertical gear 44 drives the corrugated column 4 to rise and fall. The patterns on the side wall of the bellows are arranged in a linear array. Each group of corrugations is a ring with an isosceles trapezoidal cross-section, which is meshed and connected with the vertical gear 44 to control the lifting and lowering of the support arm 41 and the holder 42, so that the holder 42 can position the mold 5 to be cut at different heights. When the servo motor stops running, the vertical gear 44 does not rotate, the corrugated column 4 is positioned, and cannot be lifted or lowered.

[0041] like Figure 6-Figure 8 As shown, the lower end of the L-shaped plate 32 is fixedly connected to a servo motor 45, the output end of the servo motor 45 is fixedly connected to a transverse gear 46, and the lower end of the L-shaped plate 32 is rotatably mounted with a flat gear 47, the flat gear 47 and the transverse gear 46 are in the same horizontal plane, and the transverse gear 46 and the flat gear 47 are meshed for transmission.

[0042] The side wall of the corrugated column 4 is provided with a vertical groove 48, the width of the vertical groove 48 is smaller than the thickness of the vertical gear 44, the corrugated column 4 passes through the flat gear 47, and the corrugated column 4 and the flat gear 47 are coaxial, a protrusion is fixed to the inner wall of the flat gear 47, the protrusion is located in the vertical groove 48, and the protrusion and the vertical groove 48 are slidably matched.

[0043] When the corrugated column 4 is raised or lowered, the protrusion slides in the vertical groove 48, so the flat gear 47 will not limit the raising or lowering of the corrugated column 4. When the servo motor 2 45 is running, it drives the transverse gear 46 to rotate. The transverse gear 46 engages the transmission flat gear 47. The flat gear 47 drives the corrugated column 4 to rotate through the protrusion and the vertical groove 48, so that the support arm 41 rotates, and the holder 42 can position and support molds of different sizes and shapes.

[0044] The models of the servo motor 1 43 and the servo motor 2 45 are both 110ST-IM06020.

[0045] like Figure 1 , Figure 2 , Figure 6 , Figure 7 As shown, the two groups of L-shaped plates 32 are provided with a slide groove 33, and the slide groove 33 is located between the two groups of supporting and clamping mechanisms. A notch 34 is provided at one end of the slide groove 33 away from the base 3, and the notch 34 is located on the side of the L-shaped plate 32 close to the mold 5 to be cut. The slide groove 33 and the notch 34 both pass through the bracket 31, and the two groups of slide grooves 33 are slidably connected with a pre-support mechanism, which supports the bottom of the component to be cut, and the pre-support mechanism cooperates with the notch 34.

[0046] The pre-support mechanism is installed in the slide groove 33, and the support plates 62 on the two groups of pre-support mechanisms pre-support the mold 5 to be cut to prevent the mold 5 to be cut from being held while the support clamping mechanism is adjusted, so as to facilitate the support clamping mechanism to position the mold 5 to be cut.

[0047] like Figure 1 , Figure 2 , Figure 6 , Figure 7 As shown, the pre-support mechanism includes a sliding seat 6, which is slidably connected in the slide groove 33. A threaded column 61 is threadedly connected to the top of the sliding seat 6. The upper end of the side wall of the threaded column 61 is rotatably connected to a support plate 62, and the support plate 62 is used to support the bottom of the cutting mold 5.

[0048] The sliding seat 6 is installed in the slide groove 33 of the L-shaped plate 32 through the notch 34. The height of the threaded column 61 can be adjusted by rotating the threaded column 61, thereby adjusting the height of the support plate 62. Rotating the support plate 62 can enable the support plate 62 to support different areas. The mold 5 to be cut is placed on two groups of support plates 62 to avoid the operator adjusting the support clamping mechanism while supporting the suspended mold with his hands. The pre-support assembly can support the molds 5 to be cut at different heights.

[0049] like Figure 1 , Figure 2 , Figure 6 , Figure 7 As shown, the two groups of slide grooves 33 are slidably connected with sliders 35, the sliders 35 are located between the sliding seat 6 and the base 3, and the two sides of the mobile frame 2 are fixedly connected with fixed rods 22. The two groups of fixed rods 22 are respectively plug-connected with the two groups of sliders 35, and the fixed rods 22 are used to drive the sliders 35 to slide.

[0050] After the support clamping mechanism positions the mold on the support plate 62, there is no need to spend time removing the pre-support component. The movable frame 2 can be directly controlled to move and the wire cutting can be started. When the movable frame 2 moves, it will drive the slider 35 to slide through the fixed rod 22, so that the slider 35 pushes the pre-support component until the pre-support component falls through the notch 34. The pre-support component can be taken out and automatically removed by the movable frame 2, which is convenient and time-saving.

[0051] Since the fixing rod 22 is plugged into the slider 35 and is slidably connected therebetween, the forward and backward movement of the movable frame 2 will drive the slider 35 to move, while the left and right movement of the movable frame 2 will not drive the slider 35 to move, and the slider 35 will not affect the left and right movement of the movable frame 2.

[0052] like Figure 1-Figure 3 As shown, a water spray mechanism 10 is fixedly connected to the upper end of the transverse frame 7, a collecting tray 24 is clamped and installed at the bottom of the inner wall of the movable frame 2, and a non-woven fabric 25 is provided inside the collecting tray 24 to prevent liquid from splashing.

[0053] The working fluid required for wire cutting is added inside the water spray mechanism 10 and sprayed toward the cutting position through the nozzle for cooling and lubrication. Most of the working fluid will fall into the collecting tray 24 and be collected. The non-woven fabric 25 is installed in the collecting tray 24 with an elastic loop sleeve and a concave center to prevent the working fluid from splashing when it falls into the collecting tray 24.

[0054] The working principle of a wire cutting device for injection mold processing provided by the present invention is as follows: During operation, the injection mold is fixed on the positioning mechanism, and the cutting line passes through the horizontal plate 21, the wire pulley 73, the top of the movable frame 2, the roller 86 and the top of the U-shaped frame 8 in sequence, one end is connected to the wire drum, and the other end is connected to the wire take-up drum. When the wire pulley 73 is coaxial with the toothed disc 71, the cutting line is in a vertical state, and the movable frame 2 can move to cut the vertical surface of the injection mold. The wire pulley 73 slides in the slide rail 72 to pull the cutting line. At this time, the cutting line is in an inclined state, and the movable frame 2 can move to cut the inclined surface of the injection mold. At this time, the toothed disc 71 rotates, driving the inclined cutting line to rotate around the center of the toothed disc 71, and the cutting line can cut the conical surface of the injection mold. The device can cut the vertical surface, inclined surface and conical surface of the positioned injection mold, with a large processing range and improved applicability.

[0055] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, and these changes and improvements all fall within the scope of the present invention to be protected.

Claims

1. A wire cutting device for processing an injection mold, comprising a moving mechanism for driving the cutting wire to move and a positioning mechanism for fixing a mold (5) to be cut, characterized in that: The moving mechanism comprises a moving frame (2), the moving frame (2) having a wire adjustment mechanism and a horizontal plate (21) fixedly connected thereto, the horizontal plate (21) moving below the positioning mechanism, and the wire adjustment mechanism moving above the positioning mechanism; The wire adjustment mechanism comprises a transverse frame (7), the transverse frame (7) being fixedly connected to the inside of the mobile frame (2), a toothed disc (71) being rotatably mounted at the center of the transverse frame (7), a slide rail (72) being fixedly connected and passing through the toothed disc (71), one end of the slide rail (72) being located at the center of the toothed disc (71), and the other end being located at the edge of the toothed disc (71), a wire pulley (73) being slidably connected in the slide rail (72), one end of the cutting wire passing through the inside of the wire pulley (73) and passing through the center of the top of the mobile frame (2), and the other end passing through the center of the transverse plate (21), and the cutting wire is in a taut state.

2. A wire cutting device for injection mold processing according to claim 1, characterized in that: A toothed plate (76) is fixedly connected to one side of the pulley (73), the toothed plate (76) is inserted into the toothed disc (71), a servo motor (77) is fixedly connected to the upper end of the toothed disc (71), a driving gear (78) is fixedly connected to the output end of the servo motor (77), and the driving gear (78) is meshed with the toothed plate (76) for transmission; A servo motor three (74) is fixedly connected to the upper end of the transverse frame (7), and a steering gear (75) is fixedly connected to the output end of the servo motor three (74). The steering gear (75) rotates inside the transverse frame (7), and the steering gear (75) is meshed with teeth on the side wall of the toothed disc (71) for transmission.

3. A wire cutting device for injection mold processing according to claim 2, characterized in that: A U-shaped frame (8) is fixedly connected to the center of the top of the movable frame (2), a sealing frame (82) is fixedly connected to the center of the U-shaped frame (8), a pressing plate (85) is sealingly and slidably connected inside the sealing frame (82), one side of the pressing plate (85) is plugged into the sealing frame (82), and a roller (86) is rotatably mounted on one end of the pressing plate (85) located outside the sealing frame (82); One end of the cutting line passes through the movable frame (2) and passes through the center position of the upper end of the U-shaped frame (8), and the position of the cutting line inside the U-shaped frame (8) is in close contact with the roller (86). A spring (84) is fixedly connected between a side of the pressing plate (85) away from the roller (86) and an inner wall of the sealing frame (82), and the spring (84) is in a compressed state. A pressure gauge (83) for detecting the air pressure in the space where the spring (84) is located is fixedly connected to the sealing frame (82).

4. A wire cutting device for injection mold processing according to claim 1, characterized in that: The positioning mechanism comprises a base (3), one side of the base (3) is fixedly connected to a transverse electric slide (1) via a connecting plate, the transverse electric slide (1) is parallel to the base (3), a moving output end of the transverse electric slide (1) is fixedly connected to a vertical electric slide (11), and the lower end of the moving frame (2) is fixedly connected to the moving output end of the vertical electric slide (11).

5. A wire cutting device for injection mold processing according to claim 4, characterized in that: The base (3) is fixedly connected to two groups of mutually symmetrical brackets (31), the upper ends of the two groups of brackets (31) are fixedly connected to L-shaped plates (32), the upper ends of the L-shaped plates (32) are installed with two groups of supporting clamping mechanisms, and the four groups of supporting clamping mechanisms jointly support and position the cutting mold (5); The supporting and clamping mechanism comprises a corrugated column (4), the corrugated column (4) is vertically slidably connected to the L-shaped plate (32), a servo motor (43) is fixedly connected to the upper end of the L-shaped plate (32), a vertical gear (44) is fixedly connected to the output end of the servo motor (43), the vertical gear (44) is meshed with the side wall of the corrugated column (4) for transmission, the vertical gear (44) is used to control the lifting of the corrugated column (4), a supporting arm (41) is fixedly connected to the top of the corrugated column (4), a clamping seat (42) is fixedly connected to the end of the supporting arm (41), and the clamping seat (42) is clamped and matched with the bottom of the side wall of the mold (5) to be cut.

6. A wire cutting device for injection mold processing according to claim 5, characterized in that: A servo motor 2 (45) is fixedly connected to the lower end of the L-shaped plate (32), a transverse gear (46) is fixedly connected to the output end of the servo motor 2 (45), a spur gear (47) is rotatably mounted on the lower end of the L-shaped plate (32), the spur gear (47) and the transverse gear (46) are located in the same horizontal plane, and the transverse gear (46) and the spur gear (47) are meshed for transmission; The side wall of the corrugated column (4) is provided with a vertical groove (48), the width of the vertical groove (48) is smaller than the thickness of the vertical gear (44), the corrugated column (4) penetrates the flat gear (47), and the corrugated column (4) and the flat gear (47) are coaxial, and a protrusion is fixedly connected to the inner wall of the flat gear (47), the protrusion is located in the vertical groove (48), and the protrusion and the vertical groove (48) are slidably matched.

7. A wire cutting device for injection mold processing according to claim 5, characterized in that: The two groups of L-shaped plates (32) are both provided with a slide groove (33), the slide groove (33) being located between the two groups of supporting and clamping mechanisms, a notch (34) being provided at one end of the slide groove (33) away from the base (3), the notch (34) being located at a side of the L-shaped plate (32) close to the mold (5) to be cut, the slide groove (33) and the notch (34) both pass through the bracket (31), the two groups of slide grooves (33) are both slidably connected with a pre-support mechanism, the pre-support mechanism supports the bottom of the component to be cut, and the pre-support mechanism cooperates with the notch (34).

8. A wire cutting device for injection mold processing according to claim 7, characterized in that: The pre-support mechanism comprises a sliding seat (6), the sliding seat (6) is slidably connected in the sliding groove (33), a threaded column (61) is threadedly connected to the top of the sliding seat (6), and a support plate (62) is rotatably connected to the upper end of the side wall of the threaded column (61), and the support plate (62) is used to support the bottom of the cutting mold (5).

9. A wire cutting device for injection mold processing according to claim 8, characterized in that: Slide blocks (35) are slidably connected in the two groups of slide grooves (33). The slide blocks (35) are located between the slide seat (6) and the base (3). Fixed rods (22) are fixedly connected to both sides of the mobile frame (2). The two groups of fixed rods (22) are plug-connected with the two groups of slide blocks (35) respectively. The fixed rods (22) are used to drive the slide blocks (35) to slide.

10. The wire cutting device for injection mold processing according to claim 3, characterized in that: A water spray mechanism (10) is fixedly connected to the upper end of the transverse frame (7), a collecting tray (24) is clamped and installed at the bottom of the inner wall of the movable frame (2), and a non-woven fabric (25) is provided inside the collecting tray (24) for preventing liquid from splashing.

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