Automatic rubber part extrusion molding blanking machine

Abstract

The application discloses a rubber part automatic extrusion molding blanking machine, which comprises a molding device and an extrusion blanking device, the extrusion blanking device comprises a main rack, a front-and-back extending moving mechanism is fixed to the bottom surface of the right side of the top plate of the main rack, a vertical lifting mechanism is fixed to the right side wall of the moving block of the moving mechanism, a vertical grabbing arm is fixed to the right side wall of the lifting block of the vertical lifting mechanism, a first lifting oil cylinder is fixed to the top surface of the bottom plate of the vertical grabbing arm, the bottom end of the push rod of the first lifting oil cylinder extends out of the bottom surface of the bottom plate of the vertical grabbing arm and is fixed with a lifting fixing plate, and a grabbing mechanism is fixed to the bottom surface of the lifting fixing plate; the rubber material can be automatically placed on a lower mold, an upper mold is automatically lowered, and the upper mold is pressed against the lower mold, so that automatic molding is realized; after completion, the molded part and the edge material can be automatically taken out from the lower mold, automatic processing is realized, the effect is good, the efficiency is high, and the manual labor amount is greatly reduced.

Description

Technical field:

[0001] The present invention relates to the technical field related to rubber processing equipment, and more particularly to an automatic extrusion molding blanking machine for rubber parts. Background technology:

[0002] In the existing rubber parts processing process, one of the steps is to place the rubber material on the lower mold, then press the upper mold downward to place the rubber material between the upper and lower molds, and at the same time, heat it so that the rubber material is in the molding grooves of the upper and lower molds to achieve molding;

[0003] However, the existing rubber material is generally placed on the lower mold manually, and then the upper mold is lowered for molding. After the molding is completed, the molded rubber part together with the edge material needs to be manually removed from the lower mold, which is inefficient and labor-intensive. Summary of the invention:

[0004] The purpose of the present invention is to overcome the shortcomings of the existing technology and provide an automatic extrusion molding blanking machine for rubber parts. The machine can automatically place the rubber material on the lower mold, and the upper mold automatically descends and presses against the lower mold to achieve automatic molding. After completion, the molded part together with the edge material can be automatically removed from the lower mold to achieve automated processing. It has good effect, high efficiency, and greatly reduces the amount of manual labor.

[0005] The solution of the present invention to the technical problem is:

[0006] An automatic extrusion molding and blanking machine for rubber parts, comprising a molding device and an extrusion blanking device, wherein the extrusion blanking device comprises a main frame, a moving mechanism extending forward and backward is fixed to the right bottom surface of the top plate of the main frame, a vertical lifting mechanism is fixed to the right side wall of the moving block of the moving mechanism, a vertical grabbing arm is fixed to the right side wall of the lifting block of the vertical lifting mechanism, a first lifting cylinder is fixed to the middle part of the top surface of the bottom plate of the vertical grabbing arm, the bottom end of the push rod of the first lifting cylinder extends out of the bottom surface of the bottom plate of the vertical grabbing arm and is fixed to a lifting fixing plate, and a grabbing mechanism is fixed to the bottom surface of the lifting fixing plate;

[0007] An extrusion conveying mechanism is fixed on the top surface of the middle plate of the main frame;

[0008] The molding device includes a base arranged on the right side of the main frame, a lower shell is fixed to the middle of the top surface of the base, a bottom pushing oil cylinder is installed in the lower shell, a bottom pushing block is fixed to the top end of the push rod of the bottom pushing oil cylinder, and transverse guide beams extending left and right are fixed to the front and rear of the top surface of the bottom pushing block, and the bottom mold moving plate is installed between the two transverse guide beams;

[0009] The top surfaces of the four corners of the top plate of the lower shell are fixed with vertical support guide rods, the upper fixing block is fixed on the top of all the vertical support guide rods, the middle part of the top surface of the upper fixing block is fixed with an upper pressing oil cylinder, the bottom end of the push rod of the upper pressing oil cylinder extends out of the bottom surface of the upper fixing block and is fixed with the upper pressing block, and the bottom surface of the upper pressing block is fixed with an upper mold;

[0010] A lower mold is fixed on the middle of the top surface of the bottom mold movable plate, and the lower mold corresponds to the upper mold in the upper and lower directions;

[0011] A mounting plate is fixed on the right bottom surface between the two transverse guide beams, and at least one pushing oil cylinder is fixed on the top surface of the mounting plate. The push rod of the pushing oil cylinder moves the bottom mold moving plate left and right.

[0012] The moving mechanism includes a front and rear fixed plate fixed to the bottom surface of the right end of the top plate of the main frame, and two ends of the moving screw extending front and back are movably connected to the two fixed plates through bearings. A first moving motor is fixed on the outer wall of one of the fixed plates, and the first moving motor drives the moving screw to rotate. The moving block is screwed on the moving screw. The left sides of the two fixed plates are fixed to the same left plate, and a guide rail extending front and back is fixed on the right side wall of the left plate. A slider is fixed on the left wall of the moving block, and the slider is inserted into the guide groove of the guide rail and cooperates with the guide groove.

[0013] The vertical lifting mechanism includes a vertically extending mounting shell fixed on the right side wall of the moving block, a vertical screw inserted in the mounting shell, and both ends of the vertical screw movably connected to the top and bottom plates of the mounting shell through bearings, a first lifting motor is fixed on one of the plates, the first lifting motor drives the vertical screw to rotate, the lifting block is screwed on the vertical screw, a vertical guide rail is fixed on the right side wall of the vertical plate of the mounting shell, a left guide block is fixed on the left side wall of the lifting block, and the vertical guide rail is inserted in the vertical guide groove formed on the left side wall of the left guide block.

[0014] A plurality of vertical guide rods are fixed on the top surface of the lifting fixed plate. The vertical guide rods are inserted into corresponding guide sleeves fixed on the bottom plate of the vertical grabbing arm. The guide sleeves are clamped on the inner side walls of the corresponding guide through holes on the bottom plate of the vertical grabbing arm.

[0015] The lifting mechanism comprises a lower connecting plate fixed to the bottom of the lifting fixed plate, and an inner cavity is formed between the lower connecting plate and the lifting fixed plate, and the bottom surface of the rear end of the lower connecting plate is formed with an elongated suction groove extending left and right, and the elongated suction groove is communicated with the inner cavity, and a front elastic protective strip extending left and right is fixed on the bottom surface of the lower connecting plate at the front of the elongated suction groove, and a hard plate portion extending left and right is provided inside the front elastic protective strip, and a rear support connecting plate is fixed on the bottom surface of the lower connecting plate at the rear of the elongated suction groove, and the left and right parts of the rear wall surface of the rear support connecting plate are fixed with clamping cylinders, and the front ends of the push rods of the two clamping cylinders extend out of the front wall surface of the rear support connecting plate and are respectively fixed to the corresponding pushing plates, and a rear guide rod is fixed on the rear wall surface of the pushing plate, and the rear guide rod is inserted into the corresponding guide through hole on the rear support connecting plate;

[0016] The rear ends of the first buffer springs are fixed to the front wall surface of each of the push plates, and the front ends of the two first buffer springs are fixed to the rear wall surface of the same left-right extending clamping plate. A rubber elastic sheet is fixed to the front wall surface of the clamping plate, and the left and right ends of the rubber elastic sheet are formed with bent elastic parts extending forward. The rubber elastic sheet faces the rear wall surface of the front elastic protective strip, and the two bent elastic parts are located on the left and right sides of the front elastic protective strip and are tightly attached to the left and right side walls of the front elastic protective strip.

[0017] An inner hard plate portion is provided inside the rubber elastic sheet, and the bent portions at the left and right ends of the inner hard plate portion are located inside the two bent elastic portions.

[0018] The bottom surfaces of the four sides of the lifting and fixing plate are formed with rectangular extension frame portions extending downward, and the edges of the top surface of the lower connecting plate are formed with lower rectangular extension frame portions extending upward, the lower rectangular extension frame portion is inserted into the rectangular extension frame portion, and the top surface of the lower rectangular extension frame portion is pressed against the bottom surface of the lifting and fixing plate, and the outer side wall of the lower rectangular extension frame portion is tightly attached to the inner side wall of the rectangular extension frame portion, and a rectangular frame-shaped groove is formed in the middle of the bottom surface of the rectangular extension frame portion, and a rectangular frame-shaped sealing ring is nested in the rectangular frame-shaped groove, and its bottom surface is pressed against the top surface of the edge of the lower connecting plate, the lower connecting plate is fixedly connected to the lifting and fixing plate, and a plurality of connecting pipe heads are welded and fixed on the inner side walls of the ventilation holes on the lifting and fixing plate, and the connecting pipe heads are communicated with the inner cavity.

[0019] A sensing protrusion is fixed on the top surface of the moving block, and a limit proximity switch is fixed on the front and rear of the right side of the top plate of the main frame. The sensing end of the limit proximity switch extends out of the bottom surface of the right side of the top plate of the main frame and corresponds to the top surface of the sensing protrusion.

[0020] The extrusion conveying mechanism includes a central fixed frame, which is fixed on the top surface of the central plate of the main frame. The two ends of the central movable screw extending left and right are movably connected to the left plate and the right plate of the central fixed frame through bearings. A main movable motor is fixed on the left wall of the left plate of the central fixed frame. The main movable motor drives the central movable screw to rotate. The main movable block is screwed on the central movable screw. The top surface of the main movable block is fixed with a main horizontal fixed plate extending front and back.

[0021] A plurality of lower guide sliders are fixed to the front and rear of the bottom surface of the main horizontal fixed plate, and movable guide rails extending left and right are fixed to the top surfaces of the front and rear side plates of the middle fixed frame, and the movable guide rails are inserted into the guide grooves of the corresponding lower guide sliders;

[0022] An extrusion connection block is fixed to the right end of the main horizontal fixing plate, and an extrusion body is installed in the middle of the top surface of the main horizontal fixing plate;

[0023] The extrusion main body includes a left fixed plate fixed to the middle of the left top surface of the main horizontal fixed plate, a horizontally arranged conveying cylinder is fixed on the right end surface of the left fixed plate, the right end of the conveying cylinder is fixed to the vertical end plate fixed on the left top surface of the extrusion connecting block, the conveying screw is in the conveying cylinder, one end of the conveying screw is movably connected to the left fixed plate through a bearing, and the right end of the conveying screw is movably connected to the right end plate of the conveying cylinder through a bearing, a main extrusion motor is fixed on the left wall of the left fixed plate, and the main extrusion motor drives the conveying screw to rotate, a vertical feeding cylinder is fixed to the left top surface of the conveying cylinder, and the bottom end of the vertical feeding cylinder is communicated with and aligned with the vertical feeding through-hole formed on the left top plate of the conveying cylinder, and a discharge pipe is fixed to the right bottom surface of the conveying cylinder, and the discharge pipe is communicated with the vertical discharge through-hole formed on the right bottom plate of the conveying cylinder;

[0024] A spirally wound electric heating wire is provided on the outer wall of the conveying cylinder, and an outer protective sleeve is sleeved on the outer wall of the conveying cylinder. The left and right ends of the outer protective sleeve are pressed against and welded to the inner end faces of the radially extended edges formed on the outer walls of the left and right ends of the conveying cylinder. Magnesium oxide powder is filled between the outer protective sleeve and the conveying cylinder, and the electrical connector of the electric heating wire extends out of the outer wall of the outer protective sleeve. The outer ends of the vertical feed cylinder and the discharge pipe both extend out of the outer protective sleeve.

[0025] The outer end of the discharge pipe is inserted into the concave hole formed on the top surface of the left part of the extrusion connection block, and a sealing ring is clamped between the top edge of the concave hole and the end surface of the discharge pipe;

[0026] A vertical discharge hole is formed in the middle of the bottom surface of the concave hole, and the bottom of the vertical discharge hole is communicated with the horizontal middle cavity extending frontward and rearward formed in the middle of the extrusion connecting block. A plurality of right-end discharge through holes extending to the right and extending out of the right side wall of the extrusion connecting block are formed in the middle of the right side wall of the horizontal middle cavity. A plurality of material guide connectors are fixed on the right side wall of the extrusion connecting block, and the middle through holes of the material guide connectors are communicated with and aligned with the corresponding right-end discharge through holes.

[0027] The top surface of the right part of the extrusion connecting block is fixed with a vertical fixing block, and the middle part of the vertical fixing block is formed with screw through holes extending left and right. The screw part of the position adjusting bolt is screwed in the screw through hole, and the rotating part of the position adjusting bolt is on the left side of the vertical fixing block. The right end of the screw part of the position adjusting bolt extends out of the right wall of the vertical fixing block and is movably connected to the vertical plate of the tool holder. A plurality of transverse guide rods are fixed on the left wall of the vertical plate of the tool holder, and the transverse guide rods are inserted into the corresponding transverse guide through holes on the vertical fixing block. The top plate of the right side wall of the vertical plate of the tool holder is fixed with an upper fixing plate, and the front and rear of the right side wall of the vertical plate of the tool holder are fixed with side vertical plates. A cutting cylinder is fixed in the middle of the top surface of the upper fixing plate, and the cutting cylinder The bottom end of the push rod extends out of the bottom surface of the upper fixed plate and is fixed with a cutting lifting plate. The bottom surface of the cutting lifting plate is fixed with a cutting blade extending forward and backward. The top surface of the cutting lifting plate is fixed with multiple vertical guide rods, and the vertical guide rods are inserted into the corresponding vertical guide through holes in the upper fixed plate. Two vertical guide strips are fixed on the inner side walls of the two side vertical plates respectively. A vertical guide groove is formed between the two corresponding vertical guide strips on the left and right. The front and rear of the cutting blade are inserted into the corresponding vertical guide grooves. Self-lubricating sheets are fixed on the left and right walls of the vertical guide groove. The self-lubricating sheets are tightly attached to the left or right wall of the front or rear of the corresponding cutting blade, and the bottom of the cutting blade faces the upper right end of the material guide connector.

[0028] The screw portion of the position adjusting bolt extends out of the left side wall of the vertical fixing block and is screwed with a locking nut, and the right end surface of the locking nut is pressed against the left side wall of the vertical fixing block.

[0029] The bottom surfaces of the two side vertical plates are fixed with scraper fixing plates extending forward and backward, a scraper block is fixed on the right side wall of the scraper fixing plate, and the left side wall of the cutting blade is closely attached to the right side wall of the scraper block;

[0030] A support bar extending forward and backward is fixed to the bottom surface of the scraper fixing plate, and an oblique portion extending obliquely rightward and downward is formed on the bottom surface of the support bar, and the right end wall of the oblique portion is close to the lower end of the left side wall of the cutting blade.

[0031] A first infrared receiver and a first infrared transmitter are fixed to the middle of the inner side walls of the front and rear side plates of the middle fixed frame, and the first infrared receiver receives infrared rays emitted by the first infrared transmitter. A second infrared receiver and a second infrared transmitter are fixed to the right part of the inner side walls of the front and rear side plates of the middle fixed frame, and the second infrared receiver receives infrared rays emitted by the second infrared transmitter. The main moving block corresponds to the first infrared receiver, the first infrared transmitter, the second infrared receiver and the second infrared transmitter.

[0032] The outstanding effects of the present invention are:

[0033] It can automatically place the rubber material on the lower die, and the upper die automatically descends and presses against the lower die to achieve automatic molding. After completion, the molded part together with the edge material can be automatically taken out from the lower die to achieve automated processing. It has good effect and high efficiency, and greatly reduces the amount of manual labor. Description of the drawings:

[0034] Figure 1 It is a partial structural schematic diagram of the present invention;

[0035] Figure 2 It is a partial structural schematic diagram of the molding device of the present invention;

[0036] Figure 3 It is a partial top view of the two transverse guide beams of the forming device;

[0037] Figure 4 It is a partial cross-sectional view between two transverse guide beams;

[0038] Figure 5 yes Figure 1 A partial enlarged view of

[0039] Figure 6 yes Figure 1 a partial enlarged view of another part;

[0040] Figure 7 yes Figure 6 A partial enlarged view of

[0041] Figure 8 yes Figure 6 a partial enlarged view of another part;

[0042] Figure 9 It is a schematic diagram of the local structure of the cutting blade;

[0043] Figure 10 It is a schematic diagram of the local structure of the moving mechanism;

[0044] Figure 11 It is a schematic diagram of the partial structure of the grasping mechanism;

[0045] Figure 12 yes Figure 11 A partial enlarged view of

[0046] Figure 13 It is a partial top view of the clamping cylinder;

[0047] Figure 14 It is a schematic diagram of the local structure between the right end face of the extrusion connecting block and the material guide connector. Specific implementation method:

[0048] For example, see Figures 1 to 14 As shown, an automatic extrusion molding and blanking machine for rubber parts includes a molding device and an extrusion blanking device, wherein the extrusion blanking device includes a main frame fixed to the ground, a moving mechanism 60 extending forward and backward is fixed to the right bottom surface of the top plate of the main frame, a vertical lifting mechanism 62 is fixed to the right side wall of the moving block 61 of the moving mechanism 60, a vertical grabbing arm 70 is fixed to the right side wall of the lifting block 63 of the vertical lifting mechanism 62, a first lifting cylinder 71 is fixed to the middle of the top surface of the bottom plate of the vertical grabbing arm 70, the bottom end of the push rod of the first lifting cylinder 71 extends out of the bottom surface of the bottom plate of the vertical grabbing arm 70 and is fixed to a lifting fixed plate 72, and a grabbing mechanism 73 is fixed to the bottom surface of the lifting fixed plate 72;

[0049] An extrusion conveying mechanism 80 is fixed to the top surface of the middle plate of the main frame;

[0050] The molding device includes a base 10 disposed on the right side of the main frame, a lower shell 11 is fixed to the middle of the top surface of the base 10, a bottom push cylinder 12 is installed in the lower shell 11, a bottom push block 13 is fixed to the top of the push rod of the bottom push cylinder 12, and left and right extending transverse guide beams 14 are fixed to the front and rear of the top surface of the bottom push block 13, and a bottom mold moving plate 20 is installed between the two transverse guide beams 14;

[0051] The top surfaces of the four corners of the top plate of the lower shell 11 are all fixed with vertical support guide rods 15, and the upper fixing blocks 16 are fixed on the tops of all the vertical support guide rods 15. The middle part of the top surface of the upper fixing blocks 16 is fixed with an upper pressing cylinder 17, and the bottom end of the push rod of the upper pressing cylinder 17 extends out of the bottom surface of the upper fixing block 16 and is fixed with an upper pressing block 18, and the bottom surface of the upper pressing block 18 is fixed with an upper mold 30;

[0052] A lower mold 21 is fixed to the middle of the top surface of the bottom mold movable plate 20, and the lower mold 21 corresponds to the upper mold 30 in the upper and lower directions;

[0053] A mounting plate 141 is fixed to the bottom surface of the right portion between the two transverse guide beams 14. At least one pushing cylinder 40 is fixed to the top surface of the mounting plate 141. The push rod of the pushing cylinder 40 moves the bottom mold movable plate 20 left and right.

[0054] The top surface of the bottom mold moving plate 20 corresponds to the right end of the middle through hole of the grabbing mechanism 73 and the material guiding connector 81 of the extrusion conveying mechanism 80 .

[0055] Furthermore, the moving mechanism 60 includes fixed plates fixed to the front and rear of the bottom right end of the top plate of the main frame, and the two ends of the moving screw 611 extending forward and backward are movably connected to the two fixed plates through bearings, and a first moving motor 612 is fixed to the outer wall of one of the fixed plates, and the output shaft of the first moving motor 612 is a spline shaft, which is inserted into the spline hole at one end of the moving screw 611 and drives the moving screw 611 to rotate, and the moving block 61 is screwed on the moving screw 611, and the left side walls of the two fixed plates are fixed to the same left side plate, and a guide rail 613 extending forward and backward is fixed on the right side wall of the left plate, and a slider 614 is fixed on the left side wall of the moving block 61, and the slider 614 is inserted into the guide groove of the guide rail 613 and cooperates with the guide groove.

[0056] The vertical lifting mechanism 62 includes a vertically extending mounting shell 621 fixed on the right side wall of the moving block 61, and a vertical screw 622 is inserted into the mounting shell 621. The two ends of the vertical screw 622 are movably connected to the top and bottom plates of the mounting shell 621 through bearings. A first lifting motor 623 is fixed on one of the plates. The output shaft of the first lifting motor 623 is a spline shaft, which is inserted into the spline hole at one end of the vertical screw 622 and drives the vertical screw 622 to rotate. The lifting block 63 is screwed on the vertical screw 622. A vertical guide rail is fixed on the right side wall of the vertical plate of the mounting shell 621, and a left guide block 631 is fixed on the left side wall of the lifting block 63. The vertical guide rail is inserted into the vertical guide groove formed on the left side wall of the left guide block 631 and cooperates with each other.

[0057] Furthermore, a plurality of vertical guide rods are fixed to the top surface of the lifting and fixing plate 72, and the vertical guide rods are inserted into the corresponding guide sleeves fixed on the bottom plate of the vertical grabbing arm 70, and the guide sleeves are clamped on the inner side wall of the corresponding guide through hole on the bottom plate of the vertical grabbing arm 70.

[0058] The locking plate 731 is fixed to the left and right sides of the lifting plate 732, and the locking plate 732 is fixed to the left and right sides of the lifting plate 732.

[0059] The rear ends of the first buffer springs 737 are fixed to the front wall of the push plate 736. The front ends of the two first buffer springs 737 are fixed to the rear wall of the same clamping plate 738 extending left and right. A rubber elastic sheet 739 is fixed to the front wall of the clamping plate 738. The left and right ends of the rubber elastic sheet 739 are formed with forward-extending bent elastic portions 7391. The rubber elastic sheet 739 faces the rear wall of the front elastic protection strip 733. The two bent elastic portions 7391 are located on the left and right sides of the front elastic protection strip 733 and are closely attached to the left and right side walls of the front elastic protection strip 733.

[0060] The buffering stretching effect of the first buffer spring 737 can ensure that when the push rods of the two clamping cylinders 735 push, there is a time difference, that is, when they cannot be completely synchronized, the clamping plate 738 can still be pushed normally without getting stuck.

[0061] Furthermore, the rubber elastic sheet 739 is provided with an inner hard plate portion, and the bent portions at the left and right ends of the inner hard plate portion are located inside the two bent elastic portions 7391. At the same time, the front elastic protective strip 733 is provided with a hard plate portion extending left and right. Both the hard plate portion and the inner hard plate portion are metal plates or hard plastic plates to ensure the hardness of the rubber elastic sheet 739 and the front elastic protective strip 733.

[0062] Furthermore, the bottom surfaces of the four sides of the lifting and fixing plate 72 are formed with rectangular extension frame portions 721 extending downward, and the edges of the top surface of the lower connecting plate 731 are formed with lower rectangular extension frame portions 7311 extending upward. The lower rectangular extension frame portion 7311 is inserted into the rectangular extension frame portion 721, and the top surface of the lower rectangular extension frame portion 7311 is pressed against the bottom surface of the lifting and fixing plate 72. The outer wall of the lower rectangular extension frame portion 7311 is tightly attached to the inner wall of the rectangular extension frame portion 721. A rectangular frame-shaped groove is formed in the middle of the bottom surface of the rectangular extension frame portion 721, and a rectangular frame-shaped sealing ring is nested in the rectangular frame-shaped groove, and its bottom surface is pressed against the top surface of the edge of the lower connecting plate 731. The lower connecting plate 731 is fixedly connected to the lifting and fixing plate 72, and a plurality of connecting pipe heads 722 are welded and fixed on the inner wall of the ventilation hole on the lifting and fixing plate 72, and the connecting pipe heads 722 are communicated with the inner cavity.

[0063] A sensing protrusion 619 is fixed to the top surface of the moving block 61, and a limit proximity switch 6 is fixed to the front and rear of the right side of the top plate of the main frame. The sensing end of the limit proximity switch 6 extends out of the bottom surface of the right side of the top plate of the main frame and corresponds to the top surface of the sensing protrusion 619.

[0064] The extrusion conveying mechanism 80 includes a central fixed frame 82, which is fixed on the top surface of the central plate of the main frame. The two ends of the central moving screw 821 extending left and right are movably connected to the left plate and the right plate of the central fixed frame 82 through bearings. A main moving motor 822 is fixed on the left wall of the left plate of the central fixed frame 82. The output shaft of the main moving motor 822 is inserted into the spline hole at one end of the central moving screw 821 and drives the central moving screw 821 to rotate. The main moving block 823 is screwed on the central moving screw 821, and the top surface of the main moving block 823 is fixed with a main horizontal fixed plate 83 extending front and back.

[0065] A plurality of lower guide sliders 831 are fixed to the front and rear portions of the bottom surface of the main horizontal fixed plate 83, and movable guide rails extending left and right are fixed to the top surfaces of the front and rear side plates of the middle fixed frame 82. The movable guide rails are inserted into the guide grooves of the corresponding lower guide sliders 831;

[0066] An extrusion connection block 84 is fixed to the right end of the main horizontal fixing plate 83, and an extrusion body 85 is installed in the middle of the top surface of the main horizontal fixing plate 83;

[0067] The extrusion body 85 includes a left fixed plate 851 fixed to the middle of the left top surface of the main horizontal fixed plate 83, a horizontally arranged conveying cylinder 852 is fixed on the right end surface of the left fixed plate 851, the right end of the conveying cylinder 852 is fixed to the vertical end plate fixed on the left top surface of the extrusion connecting block 84, a conveying screw 853 is in the conveying cylinder 852, one end of the conveying screw 853 is movably connected to the left fixed plate 851 through a bearing, the right end of the conveying screw 853 is movably connected to the right end plate of the conveying cylinder 852 through a bearing, and the left end of the left fixed plate 851 is movably connected to the right end plate of the conveying cylinder 852. A main extrusion motor 854 is fixed to the side wall. The output shaft of the main extrusion motor 854 is a spline shaft, which is inserted into the spline hole at one end of the conveying screw 853 and drives the conveying screw 853 to rotate. A vertical feeding cylinder 8521 is fixed to the left top surface of the conveying cylinder 852. The bottom end of the vertical feeding cylinder 8521 is connected to and aligned with the vertical feeding through-hole formed on the left top plate of the conveying cylinder 852. A discharge pipe 8522 is fixed to the right bottom surface of the conveying cylinder 852. The discharge pipe 8522 is connected to the vertical discharge through-hole formed on the right bottom plate of the conveying cylinder 852.

[0068] A spirally wound electric heating wire 8523 is provided on the outer wall of the conveying cylinder 852, and an outer protective sleeve 8524 is sleeved on the outer wall of the conveying cylinder 852. The left and right ends of the outer protective sleeve 8524 are pressed against and welded to the inner end faces of the radially extended edges formed on the left and right outer walls of the conveying cylinder 852. Magnesium oxide powder is filled between the outer protective sleeve 8524 and the conveying cylinder 852. The electrical connector of the electric heating wire 8523 extends out of the outer wall of the outer protective sleeve 8524, and the outer ends of the vertical feed cylinder 8521 and the discharge pipe 8522 both extend out of the outer protective sleeve 8524.

[0069] The outer end of the discharge pipe 8522 is inserted into the concave hole formed on the left top surface of the extrusion connection block 84, and a sealing ring is sandwiched between the top edge of the concave hole and the end surface of the discharge pipe 8522;

[0070] A vertical discharge hole is formed in the middle of the bottom surface of the recessed hole. The bottom of the vertical discharge hole communicates with a transverse central cavity 841 extending forward and backward formed in the middle of the extrusion connection block 84. A plurality of right-end discharge holes are formed in the middle of the right side wall of the transverse central cavity 841, extending rightward and extending out of the right side wall of the extrusion connection block 84 (in this embodiment, a right-end discharge hole is formed in the front, middle, and rear portions of the right side wall of the transverse central cavity 841, respectively). A plurality of material guide connectors 81 are fixed to the right side wall of the extrusion connection block 84. The central through holes of the material guide connectors 81 communicate with and align with the corresponding right-end discharge holes. A mounting groove is formed in the middle of the bottom surface of the extrusion connection block 84. A heating plate is nested in the mounting groove. The heating plate is fixed to the top surface of the mounting groove, close to the transverse central cavity 841, so that the rubber material in the transverse central cavity 841 can be kept warm and heated to prevent solidification.

[0071] Furthermore, a vertical fixing block 86 is fixed to the top surface of the right part of the extrusion connecting block 84, and a screw connection through-hole extending left and right is formed in the middle of the vertical fixing block 86. The screw portion of the position adjusting bolt 87 is screwed in the screw connection through-hole, and the rotating portion of the position adjusting bolt 87 is on the left side of the vertical fixing block 86. The right end of the screw portion of the position adjusting bolt 87 extends out of the right side wall of the vertical fixing block 86 and is movably connected to the tool holder vertical plate 90. A plurality of transverse guide rods are fixed on the left side wall of the tool holder vertical plate 90, and the transverse guide rods are inserted into the corresponding transverse guide through-holes on the vertical fixing block 86. An upper fixing plate is fixed to the top of the right side wall of the tool holder vertical plate 90, and side vertical plates are fixed to the front and rear of the right side wall of the tool holder vertical plate 90. Cutting cylinder 91, the bottom end of the push rod of the cutting cylinder 91 extends out of the bottom surface of the upper fixed plate and is fixed with a cutting lifting plate, and the bottom surface of the cutting lifting plate is fixed with a cutting blade 92 extending forward and backward, and the top surface of the cutting lifting plate is fixed with multiple vertical guide rods, and the vertical guide rods are inserted into the corresponding vertical guide through holes in the upper fixed plate. Two vertical guide bars are fixed on the inner side walls of the two side vertical plates respectively, and a vertical guide groove is formed between the two corresponding vertical guide bars on the left and right. The front and rear of the cutting blade 92 are inserted into the corresponding vertical guide grooves, and the left and right walls of the vertical guide groove are fixed with self-lubricating sheets, which are tightly attached to the left or right wall of the front or rear of the corresponding cutting blade 92, and the bottom of the cutting blade 92 faces the upper right end of the material guide connector 81.

[0072] Furthermore, the screw portion of the position adjustment bolt 87 extends out of the left side wall of the vertical fixing block 86 and is threadedly connected to a locking nut, with the right end surface of the locking nut pressing against the left side wall of the vertical fixing block 86. By loosening the locking nut and rotating the position adjustment bolt 87, the cutting blade 92 can be moved left and right to ensure that the bottom of the cutting blade 92 is facing the upper right end of the material guide connector 81 to meet cutting requirements.

[0073] A scraper fixing plate 100 extending forward and backward is fixed to the bottom surface of the two side vertical plates, a scraper block 88 is fixed to the right side wall of the scraper fixing plate 100, and the left side wall of the cutting blade 92 is close to the right side wall of the scraper block 88; the scraper block 88 can scrape off the rubber material on the cutting surface of the cutting blade 92 when it retracts after cutting, ensuring the subsequent normal cutting of the cutting blade 92.

[0074] A support bar 89 extending forward and backward is fixed to the bottom surface of the scraper fixing plate 100. The bottom surface of the support bar 89 is formed with an oblique portion extending obliquely rightward and downward. The right end wall surface of the oblique portion is in close contact with the lower end of the left side wall of the cutting blade 92. The right end of the oblique portion of the support bar 89 can initially scrape off the rubber material on the left side wall (i.e., the cutting surface) of the cutting blade 92.

[0075] Furthermore, a first infrared receiver and a first infrared transmitter are fixed in the middle of the inner walls of the front and rear side panels of the middle fixing frame 82, and the first infrared receiver receives infrared rays emitted by the first infrared transmitter. A second infrared receiver and a second infrared transmitter are fixed on the right side of the inner walls of the front and rear side panels of the middle fixing frame 82, and the second infrared receiver receives infrared rays emitted by the second infrared transmitter. The main moving block 823 corresponds to the first infrared receiver, the first infrared transmitter, the second infrared receiver and the second infrared transmitter.

[0076] Furthermore, two pushing cylinders 40 are fixed to the top surface of the mounting plate 141, and the ends of the push rods of the two pushing cylinders 40 are movably connected to one end of the adjusting rod assembly 143 through a hinge shaft, and the other end of the adjusting rod assembly 143 is movably connected to a connecting seat 144 through a hinge shaft, and the two connecting seats 144 are fixed on the right side wall of the bottom mold moving plate 20.

[0077] The adjusting rod assembly 143 includes two intermediate main rod bodies 1431 movably connected by an articulated shaft. The middle parts of the two ends of the two intermediate main rod bodies 1431 are formed with screw holes. The screw parts of the end connecting heads 1432 are screwed into the corresponding screw holes. The end of the push rod of the pushing cylinder 40 is movably connected to the corresponding end connecting head 1432 through the articulated shaft, and the end connecting head 1432 at the other end is movably connected to the connecting seat 144 through the articulated shaft.

[0078] By adopting this structure, the total length of the adjusting rod assembly 143 can be changed by rotating the corresponding end connector 1432. At the same time, through the adjusting rod assembly 143, the two push rods of the pushing cylinder 40 can be pushed with a small time difference without getting stuck, and normal telescopic pushing can still be achieved.

[0079] Furthermore, an intermediate support plate 145 is fixed between the lower portions of the middle portions of the two transverse guide beams 14 , and the bottom surface of the intermediate support plate 145 is pressed against the top surface of the bottom push block 13 ;

[0080] The inner side walls of the two transverse guide beams 14 are each formed with a transverse guide groove. The front and rear portions of the bottom mold movable plate 20 are both inserted into the corresponding transverse guide grooves. The ends of the left and right extending guide rods 22 are fixed to end plates fixed at the left and right ends of the transverse guide grooves. The end plates are fixed to the inner side wall of one end of the transverse guide groove of the corresponding transverse guide beam 14. The guide rods 22 are inserted into the transverse guide through holes at the front or rear portion of the bottom mold movable plate 20.

[0081] The bottom surface of the bottom mold moving plate 20 is in close contact with the top surface of the middle support plate 145 .

[0082] Furthermore, the bottom surface of the left part of the two transverse guide beams 14 is fixed to the same left horizontal connecting plate 146, and the front and rear parts of the left horizontal connecting plate 146 are fixed with multiple vertical rods 1. The bottom of the vertical rod 1 extends out of the bottom surface of the left horizontal connecting plate 146 and is inserted into the guide sleeve 3 fixed on the top surface of the connecting block 2 fixed on the ground below the left part of the two transverse guide beams 14.

[0083] Furthermore, the top ends of all vertical rods 1 extend out of the top surface of the left horizontal connecting plate 146 and are fixed to the corresponding upper horizontal plate 4 , and the upper horizontal plate 4 is fixed to the outer side wall of the left portion of the corresponding transverse guide beam 14 .

[0084] Specifically, a side connecting seat 50 is fixed to the outer wall of the middle portion of a transverse guide beam 14. A second push cylinder 51 is fixed to the outer wall of the vertical plate on the top surface of the side connecting seat 50. The end of the push rod of the second push cylinder 51 extends out of the inner wall of the vertical plate and is fixed to a mounting bracket 52. A proximity switch 53 is fixed to the mounting bracket 52. The sensing end of the proximity switch 53 extends out of the inner wall of the mounting bracket 52 and corresponds to the sensing end 31 fixed to the middle of the outer wall of the upper mold 30. This structure allows the push rod of the second push cylinder 51 to retract when the proximity switch 53 is no longer needed, eliminating its sensing function.

[0085] Furthermore, a plurality of outer guide rods 5 are fixed on the outer side wall of the mounting frame 52 , and the outer guide rods 5 are inserted into the guide through holes formed on the vertical plate.

[0086] Furthermore, a plurality of upper guide rods 6 are fixed to the top edge of the upper pressing block 18 , and the upper guide rods 6 are inserted into corresponding vertical guide through holes formed on the upper fixing block 16 .

[0087] All the oil cylinders in this embodiment are controlled by the operation of the hydraulic system. The hydraulic system includes an oil tank, an oil pump and a control valve, etc. The control valve is connected to the corresponding oil cylinder through a connecting pipe. It is a conventional structure and will not be described in detail here. All the electrical equipment in this embodiment is electrically connected to the control host through an electrical connection line and is controlled by the control host. It is also conventional equipment and will not be described in detail here.

[0088] When this embodiment is in use, the rubber raw material enters the vertical feeding cylinder 8521 (the top of the vertical feeding cylinder 8521 can be connected to a feeding pipe so that external rubber raw material can enter from the feeding pipe. This is a conventional structure and will not be described in detail here), and enters the conveying cylinder 852. It is heated by the electric heating wire 8523, so that the rubber raw material in the conveying cylinder 852 is melted, and the conveying screw 853 is driven to rotate by the main extrusion motor 854, so that the melted rubber material can be conveyed to the right, extending from the horizontal middle cavity 841 to the right end discharge hole of the right side wall of the extrusion connecting block 84, and finally extruded from the right end of the middle hole of the corresponding material guide connector 81.

[0089] When in use, the left part of the main moving block 823 is between the first infrared receiver and the first infrared transmitter, blocking the infrared rays emitted by the first infrared transmitter, and then, the main moving motor 822 is operated to drive the middle moving screw 821 to rotate, so that the main moving block 823 moves to the right, so that its right part is between the second infrared receiver and the second infrared transmitter, blocking the infrared rays emitted by the second infrared transmitter, and at this time, the two push rods of the pushing cylinder 40 push the bottom mold moving plate 20 to the left to the leftmost end, and at this time, the bottom surface of the front of its left end is sensed by the top of the lower proximity switch fixed on the left end bottom plate of the front transverse guide beam 14, and the top of the lower proximity switch extends out of the top surface of the left end bottom plate of the front transverse guide beam 14, indicating that it has moved into place; at this time, the material guide connector 81 is above the top surface of the right part of the lower mold 21, and then, the main extrusion motor 854 is operated to extrude the rubber material from the material guide connector 81 and is on the right side of the lower mold 21. At the same time, the main moving motor 822 (the main moving motor 822 in this embodiment is a servo motor) runs, causing the main moving block 823 to move to the left. In this process, the extruded rubber material is in the middle, front and rear of the lower mold 21 in the form of strips, until the material guide connector 81 is above the top surface of the left part of the lower mold 21. This distance is obtained by the main moving motor 822 (because it is a servo motor, it can accurately control the number of turns of the middle moving screw 821 to control the moving distance of the main moving block 823) running to drive the middle moving screw 821 to rotate. At this time, the main moving motor 822 and the main extrusion motor 854 stop running, and then the push rod of the cutting cylinder 91 is controlled to push, so that the cutting blade 92 descends to cut off the rubber material at the right end of the material guide connector 81, and then retracts. At this time, the main moving motor 822 continues to run until the left part of the main moving block 823 blocks the infrared light emitted by the first infrared emitter, at which time it is indicated that it has moved into place;

[0090] At this time, there is already rubber material on the top surface of the lower mold 21; then, the push rods of the two pushing cylinders 40 are retracted, so that the lower mold 21 moves to the top surface of the middle support plate 145. At this time, the sensing end of the proximity switch 53 senses the sensing end 31 fixed to the middle part of the outer wall of the upper mold 30, indicating that it has moved into place. Then, the push rod of the bottom pushing cylinder 12 is pushed to lift the lower mold 21. Then, the push rod of the upper pressing cylinder 17 is pushed to make the upper mold 30 descend and press against the lower mold 21. At the same time, a heating device and a cold runner device are provided in the upper mold 30 and the lower mold 21 (this structure is an existing conventional structure and will not be described in detail here). It can melt the rubber material and place it in the cavity between the upper mold 30 and the lower mold 21 to achieve molding. Generally, after a few seconds, the heating device stops heating, and then the water flowing through the cold runner device can cool it.

[0091] Then, the push rod of the upper pressing oil cylinder 17 retracts, wherein the upper mold 30 is separated from the lower mold 21, and a blowing hole is provided on the upper mold 30, and an upper connecting through-hole is formed on the upper pressing block 18 corresponding to the blowing hole. The upper connecting through-hole is communicated with the corresponding blowing hole, and the top surface of the upper pressing block 18 at the top of the upper connecting through-hole can be connected to a connector, which is connected to a blowing pipe, and the blowing pipe is connected to the air outlet end of the control valve of the pneumatic system. The control valve is operated to realize blowing (which is a conventional structure of the existing pneumatic system and is not described in detail here), so that when the upper mold 30 is lifted, air is blown to the molding material, so that the elongated rubber part and the connected edge material are on the lower mold 21, and the bottom mold moving plate 20 is pushed to the left to the leftmost end by the push rods of the two pushing oil cylinders 40;

[0092] At this time, the push rod of the bottom pushing cylinder 12 retracts, causing the lower mold 21 to descend, and the first moving motor 612 runs, so that the sensing protrusion 619 on the top surface of the moving block 61 is sensed by the sensing end of the rear limit proximity switch 6. At this time, the first moving motor 612 stops running, and the first lifting motor 623 is operated to lower the grabbing mechanism 73. Since the first lifting motor 623 is a servo motor, it can control the number of rotations of the vertical screw 622 and the descending distance of the lifting block 63 (the control distance can be adjusted through actual debugging). After descending to the set height, it can be pushed by the push rod of the first lifting cylinder 71, so that the bottom ends of the rubber elastic sheet 739 and the front elastic protective strip 733 are close to the rear end of the molding material on the lower mold 21, and its connecting pipe head 722 is connected to the control valve connected to the air inlet of the vacuum pump through the connecting pipe. When the control valve is opened, suction is achieved, and air can be sucked through the elongated suction groove 732 to remove part of the rear end of the molding material. The molded material is pulled out of the lower mold 21 by the push rod of the first lifting cylinder 71, and the demoulding is completed. Then, the first moving motor 612 is operated to move the moving block 61 forward until the induction protrusion 619 on the top surface of the moving block 61 is pressed by the front. The sensing end of the limit proximity switch 6 senses that at this time, the molding material is already in front of the lower mold 21, and a material receiving box can be placed on the ground below it, so that the demoulded molding material is above the material receiving box. Then, the push rods of the two clamping cylinders 735 retract, and at the same time, the control valves of the corresponding pneumatic system are closed, so that the long suction groove 732 stops sucking air. At this time, the clamped molding material will fall into the material receiving box to realize processing, which has a high degree of automation, good processing effect and high efficiency.

Claims

1. Automatic extrusion molding and blanking machine for rubber parts, including molding device and extrusion blanking device, characterized by: The extrusion blanking device comprises a main frame, a moving mechanism (60) extending forward and backward is fixed to the right bottom surface of the top plate of the main frame, a vertical lifting mechanism (62) is fixed to the right side wall of the moving block (61) of the moving mechanism (60), a vertical grabbing arm (70) is fixed to the right side wall of the lifting block (63) of the vertical lifting mechanism (62), a first lifting cylinder (71) is fixed to the middle of the top surface of the bottom plate of the vertical grabbing arm (70), the bottom end of the push rod of the first lifting cylinder (71) extends out of the bottom surface of the bottom plate of the vertical grabbing arm (70) and is fixed to a lifting fixed plate (72), and the bottom surface of the lifting fixed plate (72) is fixed to the grabbing mechanism (73); An extrusion conveying mechanism (80) is fixed to the top surface of the middle plate of the main frame; The molding device comprises a base (10) arranged on the right side of the main frame, a lower shell (11) is fixed in the middle of the top surface of the base (10), a bottom pushing oil cylinder (12) is installed in the lower shell (11), a bottom pushing block (13) is fixed to the top end of the push rod of the bottom pushing oil cylinder (12), and transverse guide beams (14) extending left and right are fixed to the front and rear parts of the top surface of the bottom pushing block (13), and a bottom mold moving plate (20) is installed between the two transverse guide beams (14); The top surfaces of the four corners of the top plate of the lower shell (11) are all fixed with vertical support guide rods (15), the upper fixed block (16) is fixed on the top of all the vertical support guide rods (15), the middle of the top surface of the upper fixed block (16) is fixed with an upper pressing cylinder (17), the bottom end of the push rod of the upper pressing cylinder (17) extends out of the bottom surface of the upper fixed block (16) and is fixed with an upper pressing block (18), and the bottom surface of the upper pressing block (18) is fixed with an upper mold (30); A lower mold (21) is fixed to the middle of the top surface of the bottom mold movable plate (20), and the lower mold (21) corresponds to the upper mold (30) in the upper and lower directions; A mounting plate (141) is fixed to the bottom surface of the right portion between the two transverse guide beams (14), and at least one pushing oil cylinder (40) is fixed to the top surface of the mounting plate (141). The push rod of the pushing oil cylinder (40) moves the bottom mold moving plate (20) left and right. The top surface of the bottom mold movable plate (20) corresponds to the right end of the middle through hole of the material guide connector (81) of the grabbing mechanism (73) and the extrusion conveying mechanism (80); The extrusion conveying mechanism (80) includes a central fixed frame (82), the central fixed frame (82) is fixed on the top surface of the central plate of the main frame, the two ends of the central movable screw (821) extending left and right are movably connected to the left plate and the right plate of the central fixed frame (82) through bearings, a main movable motor (822) is fixed on the left wall of the left plate of the central fixed frame (82), the main movable motor (822) drives the central movable screw (821) to rotate, a main movable block (823) is screwed on the central movable screw (821), and a main horizontal fixed plate (83) extending front and back is fixed to the top surface of the main movable block (823); A first infrared receiver and a first infrared transmitter are fixed to the middle of the inner side walls of the front and rear side plates of the middle fixed frame (82), the first infrared receiver receives infrared rays emitted by the first infrared transmitter, a second infrared receiver and a second infrared transmitter are fixed to the right of the inner side walls of the front and rear side plates of the middle fixed frame (82), the second infrared receiver receives infrared rays emitted by the second infrared transmitter, and the main moving block (823) corresponds to the first infrared receiver, the first infrared transmitter, the second infrared receiver and the second infrared transmitter; When in use, the left portion of the main moving block (823) is located between the first infrared receiver and the first infrared transmitter, blocking the infrared rays emitted by the first infrared transmitter. Then, the main moving motor (822) is operated to drive the middle moving screw (821) to rotate, so that the main moving block (823) moves to the right, so that its right portion is located between the second infrared receiver and the second infrared transmitter, blocking the infrared rays emitted by the second infrared transmitter. At this time, the bottom mold moving plate (20) is moved to the left to the leftmost end by the push rods of the two pushing cylinders (40).

2. The automatic extrusion molding blanking machine for rubber parts according to claim 1, characterized in that: The moving mechanism (60) includes a front fixed plate and a rear fixed plate fixed to the bottom surface of the right end of the top plate of the main frame, and two ends of a moving screw (611) extending forward and backward are movably connected to the two fixed plates through bearings, a first moving motor (612) is fixed to the outer wall of one of the fixed plates, the first moving motor (612) drives the moving screw (611) to rotate, and the moving block (61) is screwed to the moving screw (611), the left side walls of the two fixed plates are fixed to the same left side plate, a guide rail (613) extending forward and backward is fixed to the right side wall of the left side plate, and a slider (614) is fixed to the left side wall of the moving block (61), and the slider (614) is inserted into the guide groove of the guide rail (613) and matched with the guide groove.

3. The automatic extrusion molding blanking machine for rubber parts according to claim 1, characterized in that: The vertical lifting mechanism (62) includes a vertically extending mounting shell (621) fixed on the right side wall of the moving block (61), a vertical screw (622) inserted in the mounting shell (621), and the two ends of the vertical screw (622) are movably connected to the top and bottom plates of the mounting shell (621) through bearings, a first lifting motor (623) is fixed on one of the plates, and the first lifting motor (623) drives the vertical screw (622) to rotate, and the lifting block (63) is screwed on the vertical screw (622), a vertical guide rail is fixed on the right side wall of the vertical plate of the mounting shell (621), a left guide block (631) is fixed on the left side wall of the lifting block (63), and the vertical guide rail is inserted in a vertical guide groove formed on the left side wall of the left guide block (631).

4. The automatic extrusion molding blanking machine for rubber parts according to claim 1, characterized in that: A plurality of vertical guide rods are fixed on the top surface of the lifting fixed plate (72), and the vertical guide rods are inserted into corresponding guide sleeves fixed on the bottom plate of the vertical grabbing arm (70), and the guide sleeves are clamped on the inner side walls of the corresponding guide through holes on the bottom plate of the vertical grabbing arm (70).

5. The automatic extrusion molding blanking machine for rubber parts according to claim 1, characterized in that: A sensing protrusion (619) is fixed to the top surface of the moving block (61), and a limit proximity switch (6) is fixed to the front and rear of the right side of the top plate of the main frame. The sensing end of the limit proximity switch (6) extends out of the bottom surface of the right side of the top plate of the main frame and corresponds to the top surface of the sensing protrusion (619).

6. The automatic extrusion molding blanking machine for rubber parts according to claim 1, characterized in that: A plurality of lower guide sliders (831) are fixed to the front and rear portions of the bottom surface of the main horizontal fixed plate (83), and movable guide rails extending left and right are fixed to the top surfaces of the front and rear side plates of the middle fixed frame (82), and the movable guide rails are inserted into the guide grooves of the corresponding lower guide sliders (831).

7. The automatic extrusion molding blanking machine for rubber parts according to claim 1, characterized in that: An extrusion connection block (84) is fixed to the right end of the main horizontal fixing plate (83), and an extrusion body (85) is installed in the middle of the top surface of the main horizontal fixing plate (83); The extrusion body (85) includes a left fixed plate (851) fixed to the middle of the left top surface of the main horizontal fixed plate (83), a horizontally arranged conveying cylinder (852) is fixed on the right end surface of the left fixed plate (851), the right end of the conveying cylinder (852) is fixed to the vertical end plate fixed to the left top surface of the extrusion connection block (84), the conveying screw (853) is in the conveying cylinder (852), one end of the conveying screw (853) is movably connected to the left fixed plate (851) through a bearing, and the right end of the conveying screw (853) is movably connected to the conveying cylinder (852) through a bearing. On the right end plate, a main extrusion motor (854) is fixed on the left side wall of the left fixed plate (851), and the main extrusion motor (854) drives the conveying screw (853) to rotate. A vertical feeding cylinder (8521) is fixed on the left top surface of the conveying cylinder (852), and the bottom end of the vertical feeding cylinder (8521) is connected to and aligned with the vertical feeding through-hole formed on the left top plate of the conveying cylinder (852). A discharge pipe (8522) is fixed on the right bottom surface of the conveying cylinder (852), and the discharge pipe (8522) is connected to the vertical discharge through-hole formed on the right bottom plate of the conveying cylinder (852); A spirally wound electric heating wire (8523) is provided on the outer wall of the conveying cylinder (852), and an outer protective sleeve (8524) is sleeved on the outer wall of the conveying cylinder (852). The left and right ends of the outer protective sleeve (8524) are pressed against and welded to the inner end faces of the radially extended edges formed on the left and right outer walls of the conveying cylinder (852). Magnesium oxide powder is filled between the outer protective sleeve (8524) and the conveying cylinder (852). The electrical connector of the electric heating wire (8523) extends out of the outer wall of the outer protective sleeve (8524), and the outer ends of the vertical feed cylinder (8521) and the discharge pipe (8522) both extend out of the outer protective sleeve (8524).

8. The automatic extrusion molding blanking machine for rubber parts according to claim 7, characterized in that: The outer end of the discharge pipe (8522) is inserted into a concave hole formed on the left top surface of the extrusion connection block (84), and a sealing ring is clamped between the top edge of the concave hole and the end surface of the discharge pipe (8522); A vertical discharge hole is formed in the middle of the bottom surface of the concave hole, and the bottom of the vertical discharge hole is communicated with a transverse middle cavity (841) extending forward and backward formed in the middle of the extrusion connection block (84). A plurality of right-end discharge through holes extending to the right and extending out of the right side wall of the extrusion connection block (84) are formed in the middle of the right side wall of the transverse middle cavity (841). A plurality of material guide connectors (81) are fixed on the right side wall of the extrusion connection block (84), and the middle through holes of the material guide connectors (81) are communicated with and aligned with the corresponding right-end discharge through holes.

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