Automatic extrusion molding blanking machine for rubber parts

Abstract

The invention discloses an automatic rubber part extrusion forming blanking machine which comprises a forming device and an extrusion blanking device, the extrusion blanking device comprises a main rack, a moving mechanism extending front and back is fixed to the bottom face of the right side of a top plate of the main rack, and a vertical lifting mechanism is fixed to the right side wall of a moving block of the moving mechanism; a vertical grabbing arm is fixed to the right side wall of a lifting block of the vertical lifting mechanism, a first lifting oil cylinder is fixed to the middle of the top face of a bottom plate of the vertical grabbing arm, the bottom end of a push rod of the first lifting oil cylinder extends out of the bottom face of the bottom plate of the vertical grabbing arm and is fixedly provided with a lifting fixing plate, and a grabbing mechanism is fixed to the bottom face of the lifting fixing plate. Rubber materials can be automatically placed on the lower die, the upper die automatically descends and presses the rubber materials against the lower die, automatic die pressing is achieved, formed parts and rim charges can be automatically taken out from the lower die after automatic die pressing is completed, automatic machining is achieved, the effect is good, efficiency is high, and the manual labor amount is greatly reduced.

Description

Technical field:

[0001] The invention relates to the technical field related to rubber processing equipment, and more specifically 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, and then press the upper mold downward to place the rubber material between the upper mold and the lower mold, and at the same time, heat it so that the rubber material is in the molding grooves of the upper mold and the lower mold 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 prior art and provide an automatic extrusion molding blanking machine for rubber parts, which can automatically place rubber materials on the lower mold, and the upper mold automatically descends and presses against the lower mold to achieve automatic molding. After completion, the molded parts together with the edge materials can be automatically taken out from the lower mold to achieve automated processing, which has good effect and high efficiency and greatly reduces the amount of manual labor.

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

[0006] A rubber part automatic extrusion molding blanking machine, 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 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 with 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 comprises a base arranged at the right side of the main frame, a lower shell is fixed in 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 at the top end of the push rod of the bottom pushing oil cylinder, transverse guide beams extending left and right are fixed at 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 at the four corners of the top plate of the lower shell are all fixed with vertical support guide rods, the upper fixed block is fixed on the top of all the vertical support guide rods, the middle part of the top surface of the upper fixed block is fixed with an upper clamping oil cylinder, the bottom end of the push rod of the upper clamping oil cylinder extends out of the bottom surface of the upper fixed block and is fixed with the upper clamping block, and the bottom surface of the upper clamping block is fixed with an upper mold;

[0010] A lower mold is fixed in the middle of the top surface of the bottom mold moving plate, and the lower mold corresponds to the upper mold up and down;

[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 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 extending forward and backward are movably connected to the two fixed plates through bearings, a first moving motor is fixed to the outer wall of one of the fixed plates, the first moving motor drives the moving screw to rotate, and the moving block is screwed on the moving screw, the left side walls of the two fixed plates are fixed with the same left side plate, a guide rail extending forward and backward is fixed on the right side wall of the left side plate, and a slider is fixed on the left side 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 is inserted in the mounting shell, and both ends of the vertical screw are 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 a 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 corresponding guide through holes on the bottom plate of the vertical grabbing arm.

[0015] The gripping mechanism includes a lower connecting plate fixed under the lifting and fixing plate, an inner cavity is formed between the lower connecting plate and the lifting and fixing plate, a bottom surface of the rear part of the lower connecting plate is formed with an elongated air suction groove extending left and right, the elongated air suction groove is communicated with the inner cavity, a front elastic protective strip extending left and right is fixed on the bottom surface of the lower connecting plate at the front part of the elongated air suction groove, a hard plate portion extending left and right is provided inside the front elastic protective strip, a rear support connecting plate is fixed on the bottom surface of the lower connecting plate at the rear part of the elongated air suction groove, a clamping cylinder is fixed on the left and right parts of the rear wall surface of the rear support connecting plate, 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, 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 front wall surface of the push plate is fixed with a rear end of a first buffer spring, and the front ends of the two first buffer springs are fixed on the rear wall surface of the same clamping plate extending left and right. A rubber elastic sheet is fixed on 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 closely 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, the edge of the top surface of the lower connecting plate is formed with a lower rectangular extension frame portion extending upward, the lower rectangular extension frame portion is inserted into the rectangular extension frame portion, the top surface of the lower rectangular extension frame portion is pressed against the bottom surface of the lifting and fixing plate, 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, a rectangular frame-shaped groove is formed in the middle of the bottom surface of the rectangular extension frame portion, the 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 through 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 middle fixed frame, which is fixed on the top surface of the middle plate of the main frame. The two ends of the middle moving screw extending left and right are movably connected to the left plate and the right plate of the middle fixed frame through bearings. A main moving motor is fixed on the left wall of the left plate of the middle fixed frame. The main moving motor drives the middle moving screw to rotate. The main moving block is screwed on the middle moving screw. The top surface of the main moving block is fixed with a main horizontal fixed plate extending frontward and rearward.

[0021] A plurality of lower guide slide blocks are fixed to the front and rear parts 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 slide blocks;

[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 comprises a left fixed plate fixed to the middle part of the left top surface of the main horizontal fixed plate, a transversely 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, 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 to the left wall of the left fixed plate, 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, 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, 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 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, and 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 a 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 a transverse middle cavity extending frontward and rearward formed in the middle of the extrusion connecting block. A plurality of right-end discharge through holes extending rightward 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 transverse 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] A vertical fixing block is fixed to the top surface of the right part of the extrusion connecting block, and a screw connection through hole extending left and right is formed in the middle of the vertical fixing block. The screw portion of the position adjusting bolt is screwed in the screw connection through hole, and the rotating portion of the position adjusting bolt is on the left side of the vertical fixing block. The right end of the screw portion of the position adjusting bolt extends out of the right side wall of the vertical fixing block and is movably connected to the tool holder vertical plate. A plurality of transverse guide rods are fixed on the left side wall of the tool holder vertical plate, and the transverse guide rods are inserted into the corresponding transverse guide through holes on the vertical fixing block. An upper fixing plate is fixed to the top plate of the right side wall of the tool holder vertical plate, and side vertical plates are fixed to the front and rear of the right side wall of the tool holder vertical plate. A cutting cylinder is fixed to the middle of the top surface of the upper fixing plate. 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. A cutting blade extending forward and backward is fixed to the bottom surface of the cutting lifting plate. A plurality of vertical guide rods are fixed to the top surface of the cutting lifting plate. 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. The bottom of the cutting blade faces the upper part of the right end of the material guide connector.

[0028] The screw rod portion of the position adjusting bolt extends out of the left side wall of the vertical fixing block and is threadedly connected 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] A scraper fixing plate extending forward and backward is fixed to the bottom surface of the two side vertical plates, 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 strip 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 strip, 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 in the middle of the inner walls of the front and rear side plates of the middle fixed frame, the first infrared receiver receives infrared rays emitted by the first infrared transmitter, a second infrared receiver and a second infrared transmitter are fixed in the right part of the inner walls of the front and rear side plates of the middle fixed frame, the second infrared receiver receives infrared rays emitted by the second infrared transmitter, and 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 with good effect and high efficiency, which 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 is a partial top view of two transverse guide beams of the forming device;

[0037] Figure 4 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] Fig. 9 It is a schematic diagram of the local structure at the cutting blade;

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

[0044] Fig.11 It is a schematic diagram of the local structure of the grasping mechanism;

[0045] Fig.12 yes Fig.11 A partial enlarged view of

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

[0047] Fig.14 It is a schematic diagram of the local structure between the right end face of the extrusion connection 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 comprises a molding device and an extrusion and blanking device, wherein the extrusion and blanking device comprises a main frame fixed on 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 a moving block 61 of the moving mechanism 60, a vertical grabbing arm 70 is fixed to the right side wall of a 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 comprises a base 10 arranged at 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 at 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 at the front and rear 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;

[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, the upper fixed block 16 is fixed on the top of all the vertical support guide rods 15, the upper clamping cylinder 17 is fixed in the middle of the top surface of the upper fixed block 16, the bottom end of the push rod of the upper clamping cylinder 17 extends out of the bottom surface of the upper fixed block 16 and is fixed with an upper clamping block 18, and the bottom surface of the upper clamping 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 moving plate 20, and the lower mold 21 corresponds to the upper mold 30 up and down;

[0053] A mounting plate 141 is fixed to the bottom surface of the right part between the two transverse guide beams 14, and 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 moving 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 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 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 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, the moving block 61 is screwed on the moving screw 611, the left side walls of the two fixed plates are fixed with the same left side plate, a guide rail 613 extending forward and backward is fixed on 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 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, a vertical screw 622 is inserted in the mounting shell 621, and both 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, a left guide block 631 is fixed on the left side wall of the lifting block 63, and the vertical guide rail is inserted into and matched with the vertical guide groove formed on the left side wall of the left guide block 631.

[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 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.

[0058] The gripping mechanism 73 includes a lower connecting plate 731 fixed under the lifting and fixing plate 72, an inner cavity is formed between the lower connecting plate 731 and the lifting and fixing plate 72, and an elongated air suction groove 732 extending left and right is formed on the bottom surface of the rear portion of the lower connecting plate 731, and the elongated air suction groove 732 is communicated with the inner cavity, and a front elastic protection strip 733 extending left and right is fixed on the bottom surface of the lower connecting plate 731 at the front portion of the elongated air suction groove 732, and a rear supporting connecting plate 734 is fixed on the bottom surface of the lower connecting plate 731 at the rear portion of the elongated air suction groove 732, and a clamping cylinder 735 is fixed on the left and right portions of the rear wall surface of the rear supporting connecting plate 734, and the front ends of the push rods of the two clamping cylinders 735 extend out of the front wall surface of the rear supporting connecting plate 734 and are respectively fixed to the corresponding pushing plates 736, and a rear guide rod is fixed on the rear wall surface of the pushing plate 736, and the rear guide rod is inserted into the corresponding guide through hole on the rear supporting connecting plate 734;

[0059] The rear ends of the first buffer springs 737 are fixed to the front wall of the push plate 736, and 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, and the left and right ends of the rubber elastic sheet 739 are formed with bent elastic parts 7391 extending forward. The rubber elastic sheet 739 faces the rear wall of the front elastic protection strip 733, and the two bent elastic parts 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 with 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 bending 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 surfaces of the lower connecting plate 731 are formed with lower rectangular extension frame portions 7311 extending upward. The lower rectangular extension frame portions 7311 are inserted into the rectangular extension frame portions 721, and the top surface of the lower rectangular extension frame portions 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. The 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 side walls of the ventilation holes 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 on the top surface of the moving block 61, and a limit proximity switch 6 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 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 middle fixed frame 82, which is fixed on the top surface of the middle plate of the main frame. The two ends of the middle moving screw 821 extending left and right are movably connected to the left plate and the right plate of the middle fixed frame 82 through bearings. A main moving motor 822 is fixed on the left wall of the left plate of the middle fixed frame 82. The output shaft of the main moving motor 822 is inserted into the spline hole at one end of the middle moving screw 821 and drives the middle moving screw 821 to rotate. The main moving block 823 is screwed on the middle 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 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;

[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 transversely 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 fixed to the right end plate of the conveying cylinder 852. A main extrusion motor 854 is fixed on the side wall, and 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, 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 to 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.

[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 outer walls of the left and right ends 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 a 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 concave hole, and the bottom of the vertical discharge hole is communicated with the 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 rightward 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 (in this embodiment, a right-end discharge through hole is formed in the front, middle and rear parts of the right side wall of the transverse middle cavity 841, respectively). 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. A mounting groove is formed in the middle of the bottom surface of the extrusion connection block 84, and the heating plate is nested in the mounting groove. The heating plate is fixed on the top surface of the mounting groove, which is close to the transverse middle cavity 841, so that the rubber material in the transverse middle 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 connection block 84, and a screw connection through hole extending left and right is formed in the middle of the vertical fixing block 86, and 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, and 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, and 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, and 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, and a cutting 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, 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, the vertical guide rods are inserted into the corresponding vertical guide through holes on the upper fixed plate, and two vertical guide strips 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 strips 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 grooves 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 part of the 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 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 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 faces the upper right end of the material guide connector 81 to meet the cutting needs.

[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 on 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, so as to ensure the subsequent normal cutting of the cutting blade 92.

[0074] The bottom surface of the scraper fixing plate 100 is fixed with a support strip 89 extending forward and backward, and the bottom surface of the support strip 89 is formed with an oblique portion extending obliquely rightward and downward, and the right end wall surface of the oblique portion is close to the lower end of the left side wall of the cutting blade 92. The right end of the oblique portion of the support strip 89 can preliminarily scrape off the rubber material at 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 fixed frame 82, the first infrared receiver receives infrared rays emitted by the first infrared transmitter, and a second infrared receiver and a second infrared transmitter are fixed to the right part of the inner walls of the front and rear side panels 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.

[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, and screw holes are formed in the middle of the two ends away from each other of the two intermediate main rod bodies 1431, and the screw rod part of the end connecting head 1432 is screwed in the corresponding screw hole, and 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, a small time difference between the push rods of the two pushing cylinders 40 can be achieved without getting stuck, and normal telescopic pushing can still be achieved.

[0079] Furthermore, an intermediate support plate 145 is fixed between the lower parts of the middle parts 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 both formed with transverse guide grooves, the front and rear parts of the bottom mold moving plate 20 are both inserted into the corresponding transverse guide grooves, the two ends of the left and right extending guide rods 22 are fixed to the end plates fixed at the left and right ends of the transverse guide grooves, the end plates are fixed to the inner side walls of one end of the transverse guide groove of the corresponding transverse guide beam 14, and the guide rods 22 are inserted into the transverse guide through holes at the front or rear part of the bottom mold moving plate 20;

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

[0082] Furthermore, a same left horizontal connecting plate 146 is fixed to the bottom surface of the left part of the two transverse guide beams 14, and a plurality of vertical rods 1 are fixed to the front and rear parts of the left horizontal connecting plate 146. 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 the 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] Further, a side connecting seat 50 is fixed on the outer side wall of the middle part of a transverse guide beam 14, and a second push oil cylinder 51 is fixed on the outer side 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 oil cylinder 51 extends out of the inner side wall of the vertical plate and is fixed with a mounting frame 52, and a proximity switch 53 is fixed on the mounting frame 52. The sensing end of the proximity switch 53 extends out of the inner side wall of the mounting frame 52 and corresponds to the sensing end 31 fixed in the middle of the outer side wall of the upper mold 30. This structure allows the push rod of the second push oil cylinder 51 to retract when the proximity switch 53 is not needed for sensing in this embodiment, so that it is no longer used for sensing.

[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 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 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 connecting line and is controlled and operated 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 from 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 then enters the conveying cylinder 852. The rubber raw material is heated by the electric heating wire 8523, so that the rubber raw material in the conveying cylinder 852 is melted. 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, and extends out of the right end discharge through hole of the right side wall of the extrusion connecting block 84 from the horizontal middle cavity 841, and finally extruded from the right end of the middle through 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 bottom mold moving plate 20 is pushed to the left to the leftmost end by the push rods of the two pushing cylinders 40, and at this time, the bottom surface of the front part of its left end is sensed by the top end of the lower proximity switch fixed on the left end bottom plate of the front transverse guide beam 14, and the top end 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 at 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 at the right end 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 to make the main moving block 823 move to the left. In this process, the extruded rubber material is in the middle, front and rear of the lower mold 21 in a strip shape 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, the number of turns of the middle moving screw 821 can be accurately controlled 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 rays emitted by the first infrared emitter. At this time, it means 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 in the middle of the outer wall of the upper mold 30, indicating that it has moved into place, and then, the push rod of the bottom pushing cylinder 12 is pushed to lift the lower mold 21, and then, the push rod of the upper clamping 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), which 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 in the cold runner device can cool it;

[0091] Then, the push rod of the upper clamping 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 clamping block 18 corresponding to the blowing hole, and the upper connecting through hole is communicated with the corresponding blowing hole, and the top surface of the upper clamping block 18 at the top of the upper connecting through hole can be connected to a connector, and the connector is connected to a blow pipe, and the blow pipe is connected to the air outlet end of the control valve of the pneumatic system, and the control valve is operated to realize blowing (which is a conventional structure of the existing pneumatic system, which will not be described in detail here), so that when the upper mold 30 is lifted, the molding material is blown, so that the long rubber piece and the connected edge material are on the lower mold 21, and the bottom mold moving plate 20 is moved to the left to the leftmost end through 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 protection 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 realized, that is, air is sucked through the long suction groove 732 to move part of the rear end of the molding material. The molded material is then pushed upward to the lower part of the long suction groove 732. At this time, the rear end of the molding material is clamped between the elastic sheet 739 and the front elastic protection strip 733 by the push rods of the two clamping oil cylinders 735. Then, the push rod of the first lifting oil cylinder 71 is retracted to pull the entire molding material out of the lower mold 21 to achieve demoulding. Then, the first moving motor 612 is operated to move the moving block 61 forward until the sensing protrusion 619 on the top surface of the moving block 61 is moved 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 demoulding molding material is above the material receiving box, and then, the push rods of the two clamping cylinders 735 are retracted. At the same time, the control valve of the corresponding pneumatic system is closed, so that the long suction groove 732 stops suctioning. 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 a molding device and an extrusion and blanking device, characterized in that: The extrusion unloading 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 fixing plate (72), and a grabbing mechanism (73) is fixed to the bottom surface of the lifting fixing plate (72); An extrusion conveying mechanism (80) is fixed on 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 at 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 at 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); Vertical support guide rods (15) are fixed to the top surfaces at the four corners of the top plate of the lower shell (11); an upper fixed block (16) is fixed to the top of all the vertical support guide rods (15); an upper clamping oil cylinder (17) is fixed to the middle of the top surface of the upper fixed block (16); the bottom end of the push rod of the upper clamping oil cylinder (17) extends out of the bottom surface of the upper fixed block (16) and is fixed to an upper clamping block (18); and an upper mold (30) is fixed to the bottom surface of the upper clamping block (18); 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 on the right bottom surface between the two transverse guide beams (14), and at least one pushing cylinder (40) is fixed on the top surface of the mounting plate (141). The push rod of the pushing cylinder (40) moves the bottom mold moving plate (20) leftward and rightward. The top surface of the bottom mold moving 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).

2. The automatic extrusion molding blanking machine for rubber parts according to claim 1, characterized in that: The moving mechanism (60) comprises a front and rear fixed plate fixed to the bottom surface of the right end of the top plate of the main frame, 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, 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, a slider (614) is fixed to the left side wall of the moving block (61), the slider (614) is inserted into the guide groove of the guide rail (613) and matches the guide groove.

3. The automatic extrusion molding blanking machine for rubber parts according to claim 1 is characterized in that: The vertical lifting mechanism (62) comprises a vertically extending mounting shell (621) fixed on the right side wall of the moving block (61); a vertical screw rod (622) is inserted into the mounting shell (621); two ends of the vertical screw rod (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 first lifting motor (623) drives the vertical screw rod (622) to rotate; the lifting block (63) is screwed on the vertical screw rod (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 into 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 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 on the top surface of the moving block (61), and a limit proximity switch (6) is fixed on the front and rear of the right side of the top plate of the main frame, and 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: The extrusion conveying mechanism (80) comprises a middle fixed frame (82), the middle fixed frame (82) is fixed on the top surface of the middle plate of the main frame, the two ends of the middle moving screw (821) extending left and right are movably connected to the left plate and the right plate of the middle fixed frame (82) through bearings, a main moving motor (822) is fixed on the left wall of the left plate of the middle fixed frame (82), the main moving motor (822) drives the middle moving screw (821) to rotate, the main moving block (823) is screwed on the middle moving screw (821), and the top surface of the main moving block (823) is fixed with a main horizontal fixed plate (83) extending frontward and rearward.

7. The automatic extrusion molding blanking machine for rubber parts according to claim 6, characterized in that: A plurality of lower guide slide blocks (831) are fixed to the front and rear parts 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 slide blocks (831).

8. The automatic extrusion molding blanking machine for rubber parts according to claim 6, 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) comprises a left fixed plate (851) fixed to the middle of the left top surface of the main horizontal fixed plate (83); a transversely 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 a vertical end plate fixed to the left top surface of the extrusion connection block (84); a conveying screw (853) is located in the conveying cylinder (852); one end of the conveying screw (853) is movably connected to the left fixed plate (851) via a bearing; and the right end of the conveying screw (853) is movably connected to the conveying cylinder (852) via 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), and 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 extending 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).

9. The automatic extrusion molding blanking machine for rubber parts according to claim 8, 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 rightward 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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