A PIN cutting machine for injection molding header products

Abstract

The present invention discloses a PIN cutting machine for injection molding Header products. The PIN cutting machine includes a frame, a product table, an upper pressing die set and a cutting knife die set; the table panel of the frame is connected to a fixed base, and the front side of the main wall panel of the frame is connected to a plurality of upper pressing dies that move vertically in a straight line; the product seat of the product table is connected to the middle of the fixed base, and a plurality of longitudinally penetrating PIN cutting grooves are formed on the upper surface of the product seat, and the middle of each PIN cutting groove is a product cavity, and a horizontally arranged fixed knife fixture is provided in the product cavity; a pressing rod is threadedly connected to the main pressing block of the upper pressing die set, and the lower end of the pressing rod is located below the main pressing block; the moving knife seat of the cutting knife die set reciprocates longitudinally on the upper surface of the fixed base, and a plurality of cutting knives are installed at the front end of the moving knife seat, each cutting knife is directly opposite to a PIN cutting groove, and a side pressing block is attached above each cutting knife. The present invention has the effects of high-precision and all-round positioning of products, automatic punching, fast speed, high efficiency and high yield rate.

Description

Technical Field

[0001] The invention relates to a processing device for mobile phone parts, in particular to a PIN cutting machine for injection-molded Header products. Background Art

[0002] Among mobile phone components, Header products are mass-produced by casting and injection molding, and then the PIN pins of Header products are cut off manually. Currently, workers cut them manually, which has the following defects: slow speed, low efficiency, no product positioning, and difficult to control the cutting position. At the same time, manual cutting relies solely on the workers' technical level, and the human factor deviation is large. The force cannot be controlled, which can easily damage the PIN pins or other parts, resulting in a poor yield rate. Summary of the invention

[0003] In order to solve one or more of the above problems, the present invention provides a PIN cutting machine for injection molded Header products.

[0004] According to one aspect of the present invention, a PIN cutting machine for injection-molded Header products comprises a frame, a product table, an upper pressing die set and a cutting die set;

[0005] The frame includes a horizontally placed table panel and a vertically arranged main wall panel, the main wall panel is vertically connected to the top of the table panel, the table panel is connected to a fixed base, a waste receiving box is arranged under the table panel, and a plurality of upper pressing die sets for vertical linear motion are connected to the front side of the main wall panel;

[0006] The product table includes a transversely arranged product seat, which is connected to the middle of the fixed base. A plurality of longitudinally penetrating PIN cutting grooves are formed on the upper surface of the product seat. The middle of the PIN cutting grooves vertically extends downward to form a blanking hole. The middle of each PIN cutting groove is a product cavity. A transversely arranged fixed knife fixture is arranged in the product cavity. The Header product is placed in the product cavity, and the PIN feet of the Header product fit the two sides of the fixed knife fixture.

[0007] The upper pressing die set includes a main pressing block that can be lifted up and down, a first spring is arranged on the upper end of the main pressing block, a pressing rod is threadedly connected to the main pressing block, the lower end of the pressing rod is located below the main pressing block, the pressing rod presses against the lower top of the Header product, and the main pressing block presses against the higher top of the Header product;

[0008] The cutter module includes a movable knife seat located on one side of the product seat. The movable knife seat reciprocates longitudinally on the upper surface of the fixed base. A number of cutters are installed at the front end of the movable knife seat. Each cutter faces a PIN cutting groove. A side pressure block is fitted above each cutter. The side pressure block can slide longitudinally under the action of the second spring, and laterally fit and press the top of the punching end of the Header product in advance.

[0009] In some embodiments, the product platform further includes a left limit seat and a right limit seat; the left limit seat and the right limit seat are longitudinally arranged and respectively connected to both sides of each PIN cutting groove, and the middle of both sides of each PIN cutting groove extends horizontally to form a fixed knife groove, and both ends of the fixed knife fixture are respectively connected to a fixed knife groove.

[0010] The upper surface of the fixed knife fixture fits the lower end contour of the Header product; the positioning groove on the upper surface of the fixed knife fixture corresponds to the lower convex end of the Header product; the left positioning cavity on the inner side of the left limit seat matches the left end contour of the Header product, and the left inner cavity of the left positioning cavity matches the left convex part of the Header product; the right positioning cavity on the inner side of the right limit seat matches the right end contour of the Header product, and the side baffle at the outer end of the right positioning cavity fits the right front convex part of the Header product.

[0011] In some embodiments, the left and right sides of the fixed base extend upward to form side guide plates, the side guide plates are in contact with the side surfaces of the movable knife seat, and an upper limit plate is threadedly connected to the upper surface of the side guide plate, and the lower surface of the upper limit plate is in contact with the upper surface of the movable knife seat;

[0012] A through first guide groove is formed on the lower surface of the product seat, and a first guide column is fixed on the lower surface of the front end of the movable knife seat, and the first guide column and the first guide groove are matched.

[0013] In some embodiments, a longitudinal positioning groove is provided on the upper surface of the product seat on both sides of each PIN cutting groove, a left positioning foot is provided at the lower end of the left limit seat, and a right positioning foot is provided at the lower end of the right limit seat, and the positioning groove cooperates with the left positioning foot and the right positioning foot respectively.

[0014] In some embodiments, the upper pressing die set further comprises a pressing cylinder; a main block is fixed at the telescopic end of the pressing cylinder; the main block is provided with a first vertical hole and a second vertical hole, an upper step hole with a large diameter is formed at the upper end of the first vertical hole, a sealing cover is fixed at the upper end of the upper step hole, and the sealing cover is attached to the upper end of the first spring.

[0015] One end of the main pressure block is threaded to fix the pressure rod and the other end is threadedly connected to the lower end of a second guide column. The upper end of the second guide column is provided with a large-diameter positioning end ring. The upper end surface of the positioning end ring fits the lower end of the first spring. The positioning end ring can slide in the upper step hole, the second guide column slides in the first vertical hole, and the upper end of the pressure rod slides in the second vertical hole.

[0016] In some embodiments, an adjusting nut is threadedly connected to the pressure rod, and the lower surface of the adjusting nut fits the upper surface of the main pressure block; the pressure rod and the main pressure block are made of polyurethane material or nylon material.

[0017] In some embodiments, the cutting module further comprises a longitudinal cylinder, the output end of which is connected to the rear end of the moving knife seat.

[0018] Several pressure seats are threadedly connected to the front end of the movable knife seat, and a second guide groove is provided at the front end of the lower surface of the pressure seat, and the rear end of the second guide groove extends to both sides to form a limit groove; a guide section with the same vertical cross-section as the second guide groove is provided in the middle of the side pressure block, and the rear end of the side pressure block extends to one side to form a limit end, the guide section is located in the second guide groove, and the limit end is located in the limit groove, and a second spring is provided between the rear side surface of the side pressure block and the rear wall of the second guide groove.

[0019] In some embodiments, a positioning blind hole is provided at the center of the rear side surface of the side pressure block, and the front end of the second spring is located in the positioning blind hole.

[0020] In some embodiments, a front mounting groove is further provided at the front end of the movable knife seat, and an anti-collision block is threadedly connected to the front mounting groove, and the front side of the anti-collision block exceeds the movable knife seat; the anti-collision block is a rubber block; and a stepped through hole is installed on the front side of the anti-collision block.

[0021] In some embodiments, a cleaning hole is further provided on the movable knife seat, and a plurality of inclined and staggered cleaning channels are provided on the lower surface of the movable knife seat, and the cleaning channels are connected to the cleaning hole; the cleaning hole can be installed with a pneumatic dust removal or oil spray cleaning device. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A three-dimensional schematic diagram of a PIN cutting machine for an injection-molded header product according to one embodiment of the present invention;

[0023] Figure 2 for Figure 1 The three-dimensional schematic diagram of the Header product shown;

[0024] Figure 3 for Figure 1 A three-dimensional schematic diagram of the rack shown;

[0025] Figure 4 for Figure 1 A three-dimensional schematic diagram of the product platform shown;

[0026] Figure 5 for Figure 4 A partial enlarged schematic diagram of the product platform shown;

[0027] Figure 6 for Figure 5 A three-dimensional schematic diagram of the product seat shown;

[0028] Figure 7 for Figure 5 A three-dimensional schematic diagram of the fixed knife fixture shown;

[0029] Figure 8 for Figure 1 A three-dimensional schematic diagram of the upper pressing die set shown;

[0030] Fig. 9 for Figure 1 A schematic cross-sectional view of the upper die assembly shown;

[0031] Fig.10 for Figure 1 A three-dimensional schematic diagram of the cutter module shown;

[0032] Fig.11 for Fig.10 A schematic top view of the cutter module shown;

[0033] Fig.12 for Fig.11 A-A cross-sectional schematic diagram of the cutting die assembly shown;

[0034] Fig.13 for Fig.12 A three-dimensional schematic diagram of the cutter shown;

[0035] Fig.14 for Fig.12 A three-dimensional schematic diagram of the side pressure block shown;

[0036] Fig.15 for Fig.12 A three-dimensional schematic diagram of the pressure bearing seat shown;

[0037] Header product 00, PIN pin 001, low top 002, high top 003, punching end 004, lower convex end 005, left convex part 006, right front convex part 007;

[0038] Frame 01, fixed base 010, first through hole 0101, table panel 011, second through hole 0111, main wall panel 012, first oblong hole 0121, first positioning groove 0122, side guide plate 013, upper limit plate 014, vertical wall plate 015, bottom plate 016, side connecting plate 017, right angle seat 018;

[0039] Product table 02, product seat 021, PIN cutting groove 0211, blanking hole 0212, fixed knife groove 0213, first guide groove 0214, positioning groove 0215, fixed knife fixture 022, inner support 0221, positioning groove 0222, left limit seat 023, left positioning cavity 0231, left inner cavity 0232, left positioning foot 0233, right limit seat 024, right positioning cavity 0241, side baffle 0242, right positioning foot 0243, product cavity 025;

[0040] Upper pressing die set 03, pressing cylinder 030, main pressing block 031, threaded blind hole 0311, threaded through hole 0312, pin hole 0313, first spring 032, pressing rod 033, main block 034, first vertical hole 0341, second vertical hole 0342, upper step hole 0343, positioning plate 0345, ear plate 0346, second guide column 035, positioning end ring 0351, cut surface 0352, adjusting nut 036, sealing cover 037,

[0041] Cutter module 04, longitudinal cylinder 1, movable knife seat 2, knife groove 20, front mounting groove 21, positioning groove 22, cleaning hole 23, cleaning channel 24, cutter 3, cutting end 30, cutting edge 31, pressure seat 4, second guide groove 41, limit groove 42, reinforcement block 43, side pressure block 5, guide section 51, limit end 52, side pressure head 53, positioning blind hole 54, second spring 6, connecting screw 7, anti-collision block 8, stepped through hole 81, first guide column 9, waste box 05. DETAILED DESCRIPTION

[0042] The present invention will be further described in detail below with reference to the accompanying drawings. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to directions in the accompanying drawings, and the words "inner" and "outer" refer to directions toward or away from the geometric center of a specific component, respectively.

[0043] Figures 1 to 15 A PIN cutting machine for injection-molded header products according to an embodiment of the present invention is schematically shown. As shown in the figure, the device includes a frame 01, a product table 02, an upper pressing die set 03 and a cutting die set 04;

[0044] The frame 01 includes a horizontally placed table panel 011 and a vertically arranged main wall panel 012. The main wall panel 012 is vertically connected to the top of the table panel 011. The table panel 011 is connected to a fixed base 010. A waste receiving box 05 is provided below the table panel 011. The front side of the main wall panel 012 is connected to a plurality of upper pressing mold groups 03 that move vertically and linearly.

[0045] The product platform 02 includes a transversely arranged product seat 021, which is connected to the middle of the fixed base 010. A plurality of longitudinally penetrating PIN cutting grooves 0211 are formed on the upper surface of the product seat 021. A blanking hole 0212 is formed by vertically extending downward in the middle of each PIN cutting groove 0211. A product cavity 025 is formed in the middle of each PIN cutting groove 0211. A transversely arranged fixed knife fixture 022 is arranged in the product cavity 025. The Header product 00 is placed in the product cavity 025, and the PIN pins 001 of the Header product 00 fit the two side surfaces of the fixed knife fixture 022.

[0046] The upper pressing module 03 includes a main pressing block 031 that can be lifted up and down. A first spring 032 is provided at the upper end of the main pressing block 031. A pressing rod 033 is threadedly connected to the main pressing block 031. The lower end of the pressing rod 033 is located below the main pressing block 031. The pressing rod 033 presses against the lower top 002 of the Header product 00, and the main pressing block 031 presses against the upper top 003 of the Header product 00.

[0047] The cutting knife module 04 includes a movable knife seat 2 located on one side of the product seat 021. The movable knife seat 2 reciprocates longitudinally on the upper surface of the fixed base 010. A plurality of cutters 3 are installed at the front end of the movable knife seat 2. Each cutter 3 faces a cutting PIN groove 0211. A side pressure block 5 is fitted above each cutter 3. The side pressure block 5 can slide longitudinally under the action of the second spring 6, and fit and press the punching end 004 of the positioning Header product 00 in advance.

[0048] The cutter 3 continues to punch forward the punching end 004 , and the PIN pin 001 is cut off and enters the waste receiving box 05 through the blanking hole 0212 , the first through hole 0101 of the fixed base 010 , and the second through hole 0111 of the table panel 011 .

[0049] The device uses multiple product cavities 025 of the product table 02 to fix the four sides of multiple Header products 00 at the same time, and the fixed knife fixture 022 positions and fixes the inner side and lower surface of the two PIN feet 001. The pressure rod 033 of the upper pressure module 03 and the main pressure block 031 position and press the front and rear ends of the upper surface of the Header product 00, thereby realizing all-round six-surface positioning and pressing of the Header product 00, with high product positioning accuracy and constant cutting point. The cutting knife module 04 uses a moving knife seat 2 to concentrate multiple cutters 3 for simultaneous punching, and the side pressure block 5 performs buffer positioning, and the cut material directly enters the waste box 05 below, realizing high-precision positioning and automated punching. The beneficial effects are as follows: first, the automatic punching and cutting avoids the error caused by human factors, and the speed is fast, the efficiency is high, the positioning is carried out with high precision in all aspects, the product position accuracy is high, the cutting point is constant, there is no deviation caused by human factors, the size of the product after cutting is easy to guarantee, and the yield rate is high; second, the product is positioned quickly and with high precision in all aspects, and no manual support is required during cutting, which avoids the phenomenon of product displacement and can effectively protect the hands and products; third, the pressing device adopts the first spring 032 to realize elastic pressing, with soft action and good positioning effect, which can effectively prevent the phenomenon of up and down jumping, and the main pressing block 031 and the pressing rod 033 are set at the high top of the front and rear of the Header product 00 03. The lower top end 002 is pressed at the same time, and the first spring 032 can buffer and adjust the non-parallelism of the pressure rod 033 and the main pressure block 031, and can adjust the relative size of the two PIN feet, while protecting the product; fourthly, the movable knife seat 2 can concentrate multiple cutters 3 and process multiple parts at the same time. At the same time, the overall structure has better shock resistance and more stable movement; each cutter 3 uses a side pressure block 5 to first press and position the top of the punching end 004 of the Header product 00, avoiding the phenomenon of displacement during cutting, and avoiding changes in the cutting position caused by product bending or other deformation, avoiding the problem of unstable cutting point, thereby achieving high-precision cutting.

[0050] Among them, the side pressure block 5 extends out under the action of the second spring 6 to press the product in advance, and the cutter 3 continues to move forward to cut off the PIN foot 001. At this time, the side pressure block 5 does not move, and the second spring 6 is compressed. When the cutter 3 retreats, the side pressure block 5 does not change its position under the action of the second spring 6, and the side pressure block 5 does not immediately separate from the pressing point. When the cutter 3 separates from the product, the side pressure block 5 separates from the pressing point again. Therefore, the side pressure block 5 turns the entire cutting process into an elastic and soft pressing process, positioning before cutting to maintain a good cutting position, maintaining pressure during cutting to avoid movement of the cutting position, and continuing to press after cutting to avoid the cutting point returning to its original position and damage to the returned cutter 3, thereby achieving a high-precision cutting process.

[0051] The lower frame is a rectangular frame formed by vertically connecting the table panel 011, the vertical wall panel 015 and the bottom panel 016.

[0052] The table panel 011 is provided with a plurality of second through holes 0111 which are opposite to the blanking holes 0212 in the upper and lower directions, and the waste receiving box 05 is located at the lower side of the second through holes 0111;

[0053] Both sides of the main wall panel 012 are connected to both sides of the table panel 011 through a side connecting plate 017 respectively.

[0054] The main wall plate 012 is provided with a plurality of first oblong holes 0121, and a flow regulating valve of a press cylinder 030 is installed in the first oblong hole 0121. The beneficial effect is that the arrangement can transfer the air pipe to the rear side of the main wall plate 012, away from the working area.

[0055] A first positioning groove 0122 is respectively provided on both sides of the rear side of the main wall plate 012, and the upper end of the side connecting plate 017 is installed in the first positioning groove 0122.

[0056] Preferably, the product platform 02 further includes a left limit seat 023 and a right limit seat 024; a first through hole 0101 is provided in the middle of the fixed base 010 and is directly opposite to the blanking hole 0212; the beneficial effect is that this arrangement achieves good installation positioning.

[0057] The left limit seat 023 and the right limit seat 024 are longitudinally arranged and respectively connected to both sides of each PIN cutting groove 0211, and the fixed knife fixture 022, the left limit seat 023 and the right limit seat 024 surround and form a product cavity 025;

[0058] The middle of each PIN cutting groove 0211 extends transversely to form a fixed knife groove 0213, and the two ends of the fixed knife fixture 022 are respectively connected to a fixed knife groove 0213.

[0059] The middle of the fixed knife fixture 022 is an inner support 0221, and the width of the inner support is the same as the inner width of the PIN foot 001.

[0060] The upper surface of the fixed knife fixture 022 fits the lower end contour of the Header product 00; the positioning groove 0222 on the upper surface of the fixed knife fixture 022 corresponds to the lower convex end 005 of the Header product 00;

[0061] A left positioning cavity 0231 is provided on the inner side of the left limit seat 023. The left positioning cavity 0231 matches with the left end contour of the Header product 00. Two inner ear plates extend vertically from the middle of the left positioning cavity 0231. The inner ear plates surround and form a left inner cavity 0232. The left inner cavity 0231 matches with the left convex portion 006 of the Header product 00.

[0062] The inner side surface of the right limit seat 024 is provided with a right positioning cavity 0241, which matches the right end contour of the Header product 00. The outer end of the right positioning cavity 0241 also extends vertically inward to form a side baffle 0242, which fits the inner side surface of the right front protrusion 007 of the Header product 00.

[0063] The Header product 00 is placed in the product cavity 025, and the two sides of the inner support 0221 are respectively fitted with the inner sides of the two PIN feet 001, the upper surface of the fixed knife fixture 022 is positioned to fit the lower end of the Header product 00, and the lower convex end 005 enters the positioning groove 0222; the left positioning cavity 40 is positioned to fit the left side, left front side and left rear side of the Header product 00; the left inner cavity 0232 is positioned to fit the left convex part 006; the right positioning cavity 50 is positioned to fit the right side, right front side and middle rear side of the Header product 00; the side baffle 02422 fits the inner side of the right front convex part 007; the upper pressing module 03 is started, the pressing rod 033 presses the lower top 002 of the Header product 00, and the main pressing block 031 presses the high top 003 of the Header product 00; thereby, the Header product 00 is accurately and firmly positioned in four directions, providing a good foundation for accurately punching the PIN feet 001. The beneficial effects are: the product can be quickly positioned, the position of the product can be kept constant after multiple installations, the cutting point can be kept constant, and no manual support is required during cutting, thus avoiding displacement, effectively protecting the hands and the product, and the product size can be controlled with a high yield rate. At the same time, the fixed knife fixture 022 can support two PIN pins internally, thus avoiding displacement during cutting and enabling fast high-position cutting.

[0064] Preferably, the left and right sides of the fixed base 010 extend upward to form side guide plates 013, the side guide plates 013 are in contact with the side surface of the movable knife seat 2, and the distance between the two side guide plates 013 is the same as the width of the movable knife seat 2;

[0065] The upper surface of the side guide plate 013 is also threadedly connected to an upper limit plate 014, the inner side surface of the upper limit plate 014 exceeds the side guide plate 013, and the lower surface of the upper limit plate 014 fits the upper surface of the movable knife seat 2; its beneficial effect is: the side guide plate 013 and the upper limit plate 014 realize the linear motion of the movable knife seat 2 with controllability, without left and right deviation and up and down jumping, thereby ensuring the high movement accuracy of the cutter 3 and the high cutting accuracy.

[0066] The lower surface of the product seat 021 also forms a through first guide groove 0214, and the positioning groove 22 on the lower surface of the front end of the movable knife seat 2 also fixes a first guide column 9, and the first guide column 9 cooperates with the first guide groove 0214. The beneficial effect is that the first guide column 9 further ensures the accuracy of the linear motion of the movable knife seat 2.

[0067] Preferably, a longitudinal positioning groove 0215 is respectively provided on the upper surface of the product seat 021 on both sides of each PIN cutting groove 0211, a left positioning foot 0233 is provided at the lower end of the left limit seat 023, and a right positioning foot 0243 is provided at the lower end of the right limit seat 024, and the positioning groove 0215 and the left positioning foot 0233 and the right positioning foot 0243 are respectively matched. The beneficial effect is that the position accuracy of the two limit seats can be guaranteed, thereby ensuring the accuracy of the product cavity.

[0068] Preferably, the upper pressing die set 03 further includes a pressing cylinder 030; the pressing cylinder 030 is a rodless cylinder, a plurality of vertically lifting pressing cylinders 030 are fixed on the front side of the main wall plate 012, and a main block 034 is fixed at the telescopic end of the pressing cylinder 030;

[0069] The main block 034 is provided with a first vertical hole 0341 and a second vertical hole 0342. The upper end of the first vertical hole 0341 is formed with an upper step hole 0343 with a large diameter. A sealing cover 037 is fixed to the upper end of the upper step hole 0343. The sealing cover 037 is attached to the upper end of the first spring 032.

[0070] One end of the main pressure block 031 is threadedly fixed with the pressure rod 033 and the other end is threadedly connected to the lower end of a second guide column 035. The upper end of the second guide column 035 is provided with a large-diameter positioning end ring 0351. The upper end surface of the positioning end ring 0351 fits the lower end of the first spring 032. The positioning end ring 0351 can slide in the upper step hole 0343, the second guide column 035 slides in the first vertical hole 0341, and the upper end of the pressure rod 033 slides in the second vertical hole 0342.

[0071] A threaded blind hole 0311 is provided at one end of the upper surface of the main pressing block 031 and a threaded through hole 0312 is provided at the other end. The threaded blind hole 0311 fixes the lower end of the second guide column 035, and the threaded through hole 0312 is threadedly connected to the middle of the pressing rod 033.

[0072] The lower end of the pressing rod 033 passes through the threaded through hole 0312 and is located below the lower surface of the main pressing block 031 .

[0073] The device uses a press cylinder 030 to provide the power for pressing up and down, and a first spring 032 is arranged in the main block 034 to form an elastic guide block, thereby realizing the elastic pressing process; the sealing cover 037 and the positioning end ring 0351 can realize the good positioning of the spring 6, thereby preventing the first spring 032 from tilting or shifting. At the same time, the structure is simple and easy to install.

[0074] Preferably, an adjusting nut 036 is also threadedly connected to the pressure rod 033, and the lower surface of the adjusting nut 036 fits the upper surface of the main pressure block 031; its beneficial effect is: the adjusting nut 036 can adjust the height of the pressure rod 033 to obtain the best pressing position, and is suitable for products of various sizes and models, increasing the versatility of the equipment.

[0075] The pressure rod 033 and the main pressure block 031 are made of polyurethane material or nylon material.

[0076] A cutout surface 0352 is formed at one end of the second guide post 035, and the second vertical hole 0342 is an arc hole with the same cross-section as the second guide post 035; the beneficial effect is that the cutout surface 0352 can guide and prevent rotation.

[0077] The front side of the main pressing block 031 is also provided with a pin hole 0313, and the fixing pin is fixed in the pin hole 0313 and the front end surface is pressed against the cut surface 0352. The beneficial effects are: pin shaft connection, compact structure and high strength.

[0078] The diameters of the positioning end ring 0351 and the upper step hole 0343 are the same, the diameters of the middle of the second guide column 035 and the first vertical hole 0341 are the same, and the diameters of the second vertical hole 0342 and the upper end of the pressure rod 033 are the same.

[0079] The telescopic end of the press cylinder 030 is the horizontal top plate of the upper L-shaped plate, the main block 034 is installed at the lower end of the vertical slide of the L-shaped plate, an upper limit assembly is provided on one side of the cylinder and a lower limit assembly is provided on the middle lower side; position sensing sensors are provided on both sides of the cylinder. The beneficial effect is that the press cylinder 030 of this arrangement can move up and down well, with high straightness and controllable force.

[0080] Two vertically protruding ear plates 0346 are provided on the rear side of the main block 034, and the inner distance between the two ear plates 0346 is the same as the width of the telescopic end of the pressing cylinder 030;

[0081] A positioning plate 0345 is also provided on the lower side of the main block 034 , and the positioning plate 0345 is in contact with the lower side of the pressing cylinder 030 .

[0082] Preferably, the cutting module 04 further includes a longitudinal cylinder 1, which is fixed to one side of the table panel 011 through a right-angle seat 018, and the output end of the longitudinal cylinder 1 is connected to the rear end of the moving knife seat 2, and the longitudinal cylinder 1 can drive the moving knife seat 2 to move longitudinally and linearly.

[0083] A plurality of pressure-bearing seats 4 are threadedly connected to the front end of the movable knife seat 2, and a second guide groove 41 is provided at the front end of the lower surface of the pressure-bearing seat 4, each second guide groove 41 is located directly above a cutter 3, and the rear end of the second guide groove 41 extends to both sides to form a limit groove 42; a guide section 51 with the same vertical section as the second guide groove 41 is provided in the middle of the side pressure block 5, and the rear end of the side pressure block 5 extends to one side to form a limit end 52, the guide section 51 is located in the second guide groove 41, and the limit end 52 is located in the limit groove 42, and a second spring 6 is provided between the rear side surface of the side pressure block 5 and the rear wall of the second guide groove 41.

[0084] The cutter module 04 uses a longitudinal cylinder 1 to perform constant reciprocating linear motion, and the cutting point and cutting force are constant, eliminating deviations caused by human factors; and a limit end 52 and a guide section 51 are provided to maintain the straightness and position of the pressing, further ensuring the cutting accuracy. The beneficial effects are: the device realizes automatic cutting of the PIN pin 001, with fast speed, high efficiency, constant cutting force and size, easy to obtain the cutting point, easy to maintain the cutting force, effective protection of the PIN pin or other parts, and no large deviation caused by human factors, and high yield rate.

[0085] Preferably, a positioning blind hole 54 is provided at the center of the rear side surface of the side pressure block 5, and the front end of the second spring 6 is located in the positioning blind hole 54;

[0086] A positioning end column is also formed on the rear wall of the second guide groove 41, and the rear end shaft sleeve of the second spring 6 is on the positioning end column. The beneficial effect is that the positioning blind hole 54 and the positioning end column ensure the good positioning of the second spring 6, prevent displacement, tilting, spring damage and the phenomenon that the elastic force is difficult to be constant after repeated use, and the performance is constant after repeated use.

[0087] Preferably, the pressure bearing seat 4 protrudes forward and extends to form a reinforcement block 43, the second guide groove 41 passes through the reinforcement block 43, and the lower surface of the reinforcement block 43 slides forward and backward in contact with the upper surface of the cutter 3. The beneficial effect is that the reinforcement block 43 improves the maximum performance of the side pressure block 5 during cutting and prevents warping.

[0088] The upper end of the side pressure head 53 cuts off the material, so that the height of the guide section 51 and the limit end 52 is greater than the height of the side pressure head 53. The beneficial effect is that the side pressure head 53 is small in size, can provide more space for the product, increase the cutting position, and is used for positioning in a small space.

[0089] Preferably, a front mounting groove 21 is further provided at the front end of the movable knife seat 2 , and an anti-collision block 8 is connected to the inner thread of the front mounting groove 21 , and the front side surface of the anti-collision block 8 exceeds the movable knife seat 2 .

[0090] The front mounting groove 21 is a rectangular groove, and the anti-collision block 8 is a rectangular rubber block; the beneficial effect is that the anti-collision block 8 can effectively protect the movable knife seat 2 and the product seat.

[0091] The front side of the anti-collision block 8 is provided with a stepped through hole 81, and a cylindrical head screw passes through the stepped through hole 81 and is screwed into the threaded blind hole on the rear wall of the front mounting groove 21, so that the anti-collision block 8 is fixed to the movable knife seat 2. The beneficial effect is that the connection method has a tight structure and a small overall size.

[0092] Preferably, the longitudinal cylinder 1 is threadedly connected to the vertical plate of the right-angle seat 018, and the output end of the longitudinal cylinder 1 passes through the middle through hole of the vertical plate to connect to the rear end of the moving knife seat 2; the horizontal plate of the right-angle seat 018 is threadedly connected to the table plate 011, and reinforcing feet are threadedly connected on both sides between the vertical plate and the horizontal plate. The beneficial effect is that the right-angle seat 018 realizes a compact connection and has a high strength.

[0093] Preferably, the front end of the output shaft of the longitudinal cylinder 1 is threadedly connected to the connecting screw 7, and a large-diameter ring cap is provided at the front end of the connecting screw 7. A stepped rectangular through hole is formed in the middle of the rear side surface of the movable tool seat 2, the connecting screw 7 is located in the outer step hole, and the ring cap is located in the inner step hole.

[0094] The movable knife seat 2 is provided with a knife groove 20, and the rear end of the cutter 3 is threadedly connected in the knife groove 20;

[0095] A U-shaped hole is also provided at the rear end of the pressure bearing seat 4, and the U-shaped hole matches with the fixing bolt of the cutter 3. The beneficial effect is that the knife groove 20 and the U-shaped hole can effectively reduce the overall size.

[0096] The front end of the cutter 3 is a cutting end 30 with a relatively small height, and cutting edges 31 are arranged at both ends of the front side of the cutting end 30 .

[0097] Preferably, a cleaning hole 23 with a large diameter is provided in the center of the movable knife seat 2, and a plurality of inclined and staggered cleaning channels 24 are provided on the lower surface of the movable knife seat 2, and the cleaning channels 24 are connected to the cleaning hole 23; a pneumatic dust removal or oil spray cleaning device can be installed in the cleaning hole 23. The beneficial effect is that the arrangement can effectively remove dust under the movable knife seat 2 and ensure that the movement is not blocked.

[0098] Preferably, the waste receiving box 05 is an open structure; handles are provided on both sides of the waste receiving box 05, and universal wheels with a stopper are installed at the lower end of the waste receiving box 05. The beneficial effects are: the waste receiving box 05 can realize the effective storage and transfer of waste materials, and realize clean production; the handles are easy to fix; the universal wheels can realize the rolling movement of the waste receiving box 05, and reduce the labor intensity of workers.

[0099] The above are only some embodiments of the present invention. For those skilled in the art, several modifications and improvements can be made without departing from the creative concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. A PIN cutting machine for injection molding header products. It is characterized in that It includes a machine frame (01), a product table (02), an upper pressing die set (03) and a cutting die set (04); The frame (01) comprises a horizontally placed table panel (011) and a vertically arranged main wall panel (012), wherein the main wall panel (012) is vertically connected above the table panel (011), a fixed base (010) is connected to the table panel (011), a waste receiving box (05) is provided below the table panel (011), and a plurality of upper pressing mold assemblies (03) that move vertically and linearly are connected to the front side of the main wall panel (012); The product platform (02) comprises a transversely arranged product seat (021), the product seat (021) being connected to the middle of the fixed base (010), a plurality of longitudinally penetrating PIN cutting grooves (0211) being formed on the upper surface of the product seat (021), the middle of each of the PIN cutting grooves (0211) vertically extending downward to form a blanking hole (0212), the middle of each of the PIN cutting grooves (0211) being a product cavity (025), a transversely arranged fixed knife fixture (022) being provided in the product cavity (025), a header product (00) being placed in the product cavity (025), and the PIN feet (001) of the header product (00) being in contact with two side surfaces of the fixed knife fixture (022); The upper pressing die set (03) comprises a main pressing block (031) capable of being lifted and lowered, a first spring (032) being provided at the upper end of the main pressing block (031), a pressing rod (033) being threadedly connected to the main pressing block (031), a lower end of the pressing rod (033) being located below the main pressing block (031), the pressing rod (033) pressing against the lower top end (002) of the Header product (00), and the main pressing block (031) pressing against the upper top end (003) of the Header product (00); The cutting knife module (04) comprises a movable knife seat (2) located on one side of the product seat (021), the movable knife seat (2) reciprocates longitudinally on the upper surface of the fixed base (010), a plurality of cutting knives (3) are installed at the front end of the movable knife seat (2), each of the cutting knives (3) faces a PIN cutting groove (0211), and a side pressure block (5) is fitted above each of the cutting knives (3), and the side pressure block (5) can slide longitudinally under the action of a second spring (6) to fit and press the top of the punching end (004) of the Header product (00) in advance. The product platform (02) further comprises a left limit seat (023) and a right limit seat (024); The left limit seat (023) and the right limit seat (024) are longitudinally arranged and respectively connected to the two sides of each PIN cutting groove (0211); the middle of the two sides of each PIN cutting groove (0211) extend transversely to form a fixed knife groove (0213); and the two ends of the fixed knife fixture (022) are respectively connected to one of the fixed knife grooves (0213). The upper surface of the fixed knife fixture (022) fits with the lower end contour of the header product (00); the positioning groove (0222) on the upper surface of the fixed knife fixture (022) corresponds to the lower convex end (005) of the header product (00); the left positioning cavity (0231) on the inner side surface of the left limiting seat (023) matches with the left end contour of the header product (00), and the left inner cavity (0232) of the left positioning cavity (0231) matches with the left convex portion (006) of the header product (00); the right positioning cavity (0241) on the inner side surface of the right limiting seat (024) matches with the right end contour of the header product (00), and the side baffle (0242) at the outer end of the right positioning cavity (0241) fits with the right front convex portion (007) of the header product (00); The left and right sides of the fixed base (010) extend upwards to form side guide plates (013), the side guide plates (013) are in contact with the side surfaces of the movable knife seat (2), the upper surface of the side guide plates (013) is also threadedly connected to an upper limit plate (014), and the lower surface of the upper limit plate (014) is in contact with the upper surface of the movable knife seat (2); A through first guide groove (0214) is also formed on the lower surface of the product seat (021), and a first guide column (9) is also fixed on the lower surface of the front end of the movable knife seat (2), and the first guide column (9) and the first guide groove (0214) are matched; On both sides of each of the PIN cutting grooves (0211), a longitudinal positioning groove (0215) is provided on the upper surface of the product seat (021), a left positioning foot (0233) is provided at the lower end of the left limit seat (023), and a right positioning foot (0243) is provided at the lower end of the right limit seat (024), and the positioning groove (0215) and the left positioning foot (0233) and the right positioning foot (0243) are matched with each other.

2. A PIN cutting machine for injection-molded header products according to claim 1, It is characterized in that The upper pressing die set (03) further comprises a pressing cylinder (030); a main block (034) is fixed at the telescopic end of the pressing cylinder (030); the main block (034) is provided with a first vertical hole (0341) and a second vertical hole (0342); a large-diameter upper step hole (0343) is formed at the upper end of the first vertical hole (0341); a sealing cover (037) is fixed at the upper end of the upper step hole (0343); the sealing cover (037) is fitted on the upper end of the first spring (032); One end of the main pressure block (031) is threadedly fixed to the pressure rod (033) and the other end is threadedly connected to the lower end of a second guide column (035). The upper end of the second guide column (035) is provided with a large-diameter positioning end ring (0351). The upper end surface of the positioning end ring (0351) fits the lower end of the first spring (032). The positioning end ring (0351) can slide in the upper step hole (0343). The second guide column (035) slides in the first vertical hole (0341), and the upper end of the pressure rod (033) slides in the second vertical hole (0342).

3. A PIN cutting machine for injection-molded header products according to claim 1, It is characterized in that The pressure rod (033) is also threadedly connected to an adjusting nut (036), and the lower surface of the adjusting nut (036) is in contact with the upper surface of the main pressure block (031); The pressure rod (033) and the main pressure block (031) are made of polyurethane material or nylon material.

4. A PIN cutting machine for injection-molded header products according to claim 1, It is characterized in that The cutting knife module (04) further comprises a longitudinal cylinder (1), the output end of the longitudinal cylinder (1) being connected to the rear end of the movable knife seat (2). A plurality of pressure seats (4) are threadedly connected to the front end of the movable knife seat (2); a second guide groove (41) is provided at the front end of the lower surface of the pressure seat (4); the rear end of the second guide groove (41) extends to both sides to form a limit groove (42); a guide section (51) having the same vertical cross-section as the second guide groove (41) is provided in the middle of the side pressure block (5); the rear end of the side pressure block (5) extends to one side to form a limit end (52); the guide section (51) is located in the second guide groove (41); the limit end (52) is located in the limit groove (42); and a second spring (6) is provided between the rear side surface of the side pressure block (5) and the rear wall of the second guide groove (41).

5. A PIN cutting machine for injection-molded header products according to claim 1, It is characterized in that A positioning blind hole (54) is provided at the centre of the rear side surface of the side pressure block (5), and the front end of the second spring (6) is located in the positioning blind hole (54).

6. A PIN cutting machine for injection-molded header products according to claim 1, It is characterized in that The front end of the movable knife seat (2) is also provided with a front mounting groove (21), the front mounting groove (21) is internally threadedly connected to an anti-collision block (8), the front side surface of the anti-collision block (8) exceeds the movable knife seat (2); the anti-collision block (8) is a rubber block; the front side surface of the anti-collision block (8) is provided with a stepped through hole (81).

7. A PIN cutting machine for injection-molded header products according to claim 1, It is characterized in that The movable knife seat (2) is also provided with a cleaning hole (23), and the lower surface of the movable knife seat (2) is provided with a plurality of inclined and staggered cleaning channels (24), the cleaning channels (24) being connected to the cleaning hole (23); the cleaning hole (23) can be equipped with a pneumatic dust removal or oil spray cleaning device.

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