Automatic unloading manipulator assembly applied to injection molding equipment

Abstract

The invention discloses an automatic unloading manipulator assembly applied to injection molding equipment, which comprises an injection molding assembly and further comprises a separation mold assembly capable of being separated front and back, the two middle movable cavity assemblies are arranged in a left-right spaced mode, and the middle movable cavity assemblies can be combined with the separation mold assembly to form a completion cavity; the left-right synchronous moving assembly is arranged between the two middle movable cavity assemblies, the upward moving guide assembly is connected with the two middle movable cavity assemblies, the vertical keeping assembly is arranged between the upward moving guide assembly and the left-right synchronous moving assembly, the inclined ejection discharging assembly is arranged in the middle movable cavity assemblies, and the linkage assembly is arranged between the left-right synchronous moving assembly and the right-right synchronous moving assembly. The linkage assembly is connected to the opening and closing control assembly and the left-right synchronous moving assembly. Discharging conveying lines are arranged on the two sides of the left-right synchronous moving assembly correspondingly, continuous injection molding production is achieved through alternate cooperation of the double-middle-movable-cavity assembly and the separation mold assembly, automatic discharging of products is completed through the inclined ejection discharging assembly, and the problems that in the prior art, the production efficiency is low, and the discharging reliability is poor are solved.

Description

Technical Field

[0001] The present invention relates to the field of injection molding equipment automation, in particular to an automatic unloading manipulator component used in injection molding equipment. Background Art

[0002] In the field of injection molding equipment, the continuity of injection molding production and the degree of automation of unloading directly affect production efficiency and product quality. Traditional injection molding equipment generally adopts a single-cavity mold structure, and the production process needs to go through a single cycle of "injection-cooling-unloading-resetting", which leads to long equipment standby time and limited production capacity. For example, after each injection molding of a single-cavity mold, it is necessary to wait for the product to completely cool down and manually unload before the next round of production can be carried out. There is an urgent need for a solution with continuous injection molding, automatic and precise unloading, and a compact structure. However, the existing technology lacks an integrated design of alternating dual-cavity coordination and mechanical inclined plane transmission, especially in terms of unloading without additional power and synchronous control. There is a technical gap. The present invention solves the above problems and improves production efficiency and reliability through innovative mechanical structure.

[0003] Therefore, the existing injection molding equipment automation technology needs to be further improved. Summary of the Invention

[0004] The purpose of the present invention is to provide an automatic unloading robot assembly for use in injection molding equipment, which aims to achieve continuous injection molding production by alternately cooperating with the separation mold assembly through the double intermediate movable cavity assembly, and utilize the inclined top unloading assembly to complete the automatic unloading of the product, thereby solving the problems of low production efficiency and poor unloading reliability in the existing technology.

[0005] In order to achieve the above object, the present invention adopts the following scheme:

[0006] An automatic unloading robot assembly used in injection molding equipment includes an injection molding assembly and a separation mold assembly that can be separated frontally and rearward;

[0007] Two intermediate movable cavity assemblies spaced apart from each other, the intermediate movable cavity assemblies being capable of being combined with the separate mold assemblies to form a completed cavity;

[0008] Left and right synchronous moving components, used to connect the two intermediate movable cavity components and keep the two intermediate movable cavity components moving synchronously;

[0009] An upward guide assembly, the upward guide assembly being connected to the two intermediate movable cavity assemblies and being used to control the upward movement of the intermediate movable cavity assembly when the intermediate movable cavity assembly moves to one side of the left and right synchronous moving assemblies;

[0010] A vertical holding assembly is provided between the upward guide assembly and the left and right synchronous moving assembly, and is used to maintain the vertical placement state of the intermediate movable cavity assembly when it moves upward;

[0011] An inclined ejector assembly is provided in the intermediate movable cavity assembly and ejects the product when the intermediate movable cavity assembly moves upward;

[0012] An opening and closing control component, wherein the opening and closing control component and the separation mold component are used to control the separation and closing of the separation mold component;

[0013] A linkage component connected to the opening and closing control component and the left and right synchronous movement component;

[0014] A discharge conveying line is provided on both sides of the left and right synchronous moving components.

[0015] Furthermore, the injection molding assembly includes a feeding bracket, a feeding cabin is provided on the feeding bracket, a heating cabin is connected below the feeding cabin, a material barrel is provided below the heating cabin, and the material barrel is connected to the separation mold assembly.

[0016] Furthermore, the separation mold assembly includes a longitudinal bottom plate arranged on one side of the material barrel, a longitudinal track is provided on the longitudinal bottom plate, movable molds are respectively provided at the front and rear of the longitudinal track, an end cavity is provided on the inner wall of the movable mold, and an ejector pin fixing seat is respectively provided at the front and rear ends of the longitudinal bottom plate. An intermediate ejector is provided on the upper cover of the ejector pin fixing seat facing the direction of the separation mold assembly, an ejector pin hole is provided in the middle of the movable mold, and the intermediate ejector is movably inserted into a corresponding ejector pin hole.

[0017] Furthermore, the intermediate movable cavity assembly includes an intermediate mold plate, and an intermediate cavity is provided in the middle of the intermediate mold plate;

[0018] The two end cavities and the corresponding middle cavity form a complete product cavity.

[0019] Furthermore, the left and right synchronous movement assembly includes a transverse track bracket arranged transversely above the longitudinal bottom plate, the transverse track bracket is provided with a transverse electric track, two transverse sliders are movably provided on the transverse electric track, and a synchronous connecting rod is connected between the two transverse sliders;

[0020] The vertical holding assembly includes a vertical guide rod arranged on the middle mold plate, and the horizontal sliding block is provided with a vertical guide hole. The vertical guide rod is movably inserted into a corresponding vertical guide hole.

[0021] Furthermore, the upward guide assembly includes a guide drive plate provided on the transverse track bracket, the guide drive plate is provided with a guide groove, a connecting frame is provided above the intermediate mold plate, a drive shaft is provided on the connecting frame, and the drive shaft is movably provided in the guide groove;

[0022] The guide groove includes a transverse guide groove and an oblique guide groove provided at both ends of the transverse guide groove, and the oblique guide groove is provided to be inclined toward the outside and upward.

[0023] Furthermore, the inclined ejector assembly includes an opening provided on the middle mold plate, the opening being connected to the middle cavity, an upper inclined triangular block and a lower inclined triangular block being provided in the opening, the upper inclined triangular block being provided below the lower inclined triangular block;

[0024] The upper surface of the upper bevel triangular block is tightly attached to the lower surface of the lower bevel triangular block, the middle mold plate is provided with a longitudinal hole, a reset guide rod is movably provided in the longitudinal hole, the reset guide rod is connected to the upper bevel triangular block, a spring structure for controlling the reset of the upper bevel triangular block is provided between the reset guide rod and the middle mold plate, the upper bevel triangular block and the lower bevel triangular block are respectively provided in a forward triangle and a reverse triangle;

[0025] A horizontal position maintaining assembly is provided between the upper inclined triangle block and the transverse track bracket, and the horizontal position maintaining assembly is used to control the upper inclined triangle block to move left and right following the middle mold plate, and to keep the horizontal height of the upper inclined triangle block unchanged when the middle mold plate moves upward.

[0026] Furthermore, the horizontal position maintaining component includes a transverse maintaining guide rod arranged on the transverse track bracket, and the upper end of the upper inclined triangle block is provided with a height maintaining guide hole, and the height maintaining guide hole is sleeved in the transverse maintaining guide rod and moves.

[0027] Furthermore, the opening and closing control component includes a transverse synchronization groove arranged on one side of the longitudinal base plate, a synchronization slider is arranged in the transverse synchronization groove for left and right movement, a first hinge part is symmetrically arranged on the synchronization slider front and back, and a second hinge seat is respectively provided on the front and rear two movable mold side walls, and a synchronization connecting rod is hinged between the first hinge part and the corresponding second hinge seat.

[0028] Furthermore, the linkage assembly includes a linkage frame extending outward from the synchronous connecting rod, a horizontal rack guide hole is provided on one side of the horizontal synchronous groove, a horizontal movable rack is movably provided in the horizontal rack guide hole, the outer end of the horizontal movable rack is connected to the linkage frame, a linkage shaft is provided on the outer side of the horizontal synchronous groove, a reciprocating disc is provided on the upper end of the linkage shaft, an eccentric hinge shaft is provided on the reciprocating disc, a linkage hinge shaft is provided in the middle of the synchronous slider, a linkage connecting rod is hinged between the eccentric hinge shaft and the linkage hinge shaft, and a forward and reverse gear is provided at the lower end of the linkage shaft, and the forward and reverse gears and the horizontal movable rack are engaged for transmission.

[0029] In summary, the present invention has the following beneficial effects compared to the prior art:

[0030] The present invention solves the shortcomings in the field of automation of existing injection molding equipment. Through the structural setting of the present invention, it has the following advantages: continuous production efficiency is improved, and injection molding and unloading are carried out synchronously through the alternating cooperation of two intermediate movable cavity components and the separation mold component, eliminating the standby time of single-cavity equipment; automatic unloading has high reliability, and the inclined top unloading component uses inclined mechanical transmission, without additional power, and the unloading process is smooth, avoiding deformation or damage of the product due to external force impact; the synchronous control accuracy is high, and the left and right synchronous moving components and the opening and closing control components are rigidly linked through the linkage component to ensure that the synchronization error of mold separation and cavity movement is reduced, avoiding the risk of equipment collision; each component is modularly designed, and uses fewer drives to complete multiple action coordination, avoiding the problem of low coordination when multiple drives are used, and ensuring that the various components operate in coordination and without interference. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 A three-dimensional diagram of the separation mold assembly and one of the intermediate movable cavity assemblies of the present invention;

[0032] Figure 2 It is the front view of the present invention;

[0033] Figure 3 A three-dimensional diagram of the separation mold assembly of the present invention switching the intermediate movable cavity assembly;

[0034] Figure 4 A sectional view of a separated mold assembly of the present invention;

[0035] Figure 5 For the present invention Figure 4 A local enlarged view of point A;

[0036] Figure 6 A perspective view of the present invention;

[0037] Figure 7 A cross-sectional view of the separation mold assembly of the present invention in a closed state;

[0038] Figure 8 For the present invention Figure 7 A partial enlarged view of point B;

[0039] Figure 9 A sectional view of the inclined top of the inclined top unloading assembly of the present invention;

[0040] Figure 10 For the present invention Figure 9 A partial enlarged view of point C;

[0041] Figure 11 is a cross-sectional view of the linkage assembly of the present invention;

[0042] Figure 12 For the present invention Figure 11 A partial enlarged view of point D. DETAILED DESCRIPTION

[0043] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0044] See also Figures 1-12 The present invention provides an automatic unloading robot assembly used in an injection molding device, comprising an injection molding assembly 1 and a separation mold assembly 2 that can be separated frontward and rearward;

[0045] Two intermediate movable cavity assemblies 3 spaced apart from each other, the intermediate movable cavity assemblies 3 can be combined with the separate mold assembly 2 to form a completed cavity;

[0046] A left-right synchronous moving component 4 is used to connect the two intermediate movable cavity components 3 and keep the two intermediate movable cavity components 3 moving synchronously along the left-right direction;

[0047] An upward guide assembly 5, which is connected to the two intermediate movable cavity assemblies 3 and is used to control the upward movement of the intermediate movable cavity assembly 3 when it moves to one side of the left and right synchronous moving assembly 4;

[0048] A vertical holding assembly 6 is provided between the upward guide assembly 5 and the left and right synchronous moving assembly 4, and is used to maintain the vertical placement state of the intermediate movable cavity assembly 3 when it moves upward;

[0049] The inclined ejector assembly 7 is arranged in the intermediate movable cavity assembly 3 and ejects the product when the intermediate movable cavity assembly 3 moves upward;

[0050] An opening and closing control component 9, the opening and closing control component 9 and the separation mold component 2, are used to control the separation and closing of the separation mold component 2;

[0051] A linkage assembly 8 is connected to the opening and closing control assembly 9 and the left and right synchronous moving assembly 4, and is used to control the two intermediate movable cavity assemblies 3 to move outward, thereby controlling the separation mold assembly 2 to complete the opening and closing actions. The two intermediate movable cavity assemblies 3 take turns cooperating with the separation mold assembly 2 to perform product injection molding. When one of the intermediate movable cavity assemblies 3 is cooperating with the separation mold assembly 2 for injection molding, the other intermediate movable cavity assembly 3 is at the outer end of the left and right synchronous moving assembly 4 on the corresponding side and completes unloading through the inclined top unloading assembly 7;

[0052] When the middle movable cavity assembly 3 separates from the separation mold assembly 2 and moves to the outer end position of the left and right synchronous moving assembly 4 on the corresponding side, the other one moves from the outer end position of the left and right synchronous moving assembly 4 on the corresponding side to the separation mold assembly 2. During the whole process, the separation mold assembly 2 completes the separation and closing cycle action;

[0053] A discharge conveying line 10 is provided on each side of the left and right synchronous moving components 4;

[0054] The injection molding assembly 1 of the present invention includes a feeding bracket 101, a feeding cabin 102 is provided on the feeding bracket 101, a heating cabin 103 is connected below the feeding cabin 102, a material barrel 104 is provided below the heating cabin 103, and the material barrel 104 is connected to the separation mold assembly 2.

[0055] The separation mold assembly 2 of the present invention includes a longitudinal bottom plate 201 arranged on one side of the barrel 104, and a longitudinal track 202 is provided on the longitudinal bottom plate 201. Movable molds 203 are respectively provided at the front and rear ends of the longitudinal track 202. The inner wall of the movable mold 203 is provided with an end cavity 204. The front and rear ends of the longitudinal bottom plate 201 are respectively provided with an ejector pin fixing seat 205. The upper cover of the ejector pin fixing seat 205 is provided with an intermediate ejector 206 facing the separation mold assembly 2. An ejector hole 207 is provided in the middle of the movable mold 203, and the intermediate ejector 206 is movably inserted into a corresponding ejector hole 207.

[0056] The intermediate movable cavity assembly 3 of the present invention comprises an intermediate mold plate 301 , wherein an intermediate cavity 302 is provided in the middle of the intermediate mold plate 301 ;

[0057] The two end cavities 204 and the corresponding middle cavity 302 form a complete product cavity.

[0058] The left-right synchronous movement assembly 4 of the present invention includes a transverse track bracket 401 disposed transversely above the longitudinal base plate 201, a transverse electric track 402 disposed on the transverse track bracket 401, two transverse sliders 403 movably disposed on the transverse electric track 402, and a synchronous connecting rod 404 connected between the two transverse sliders 403;

[0059] The vertical holding assembly 6 includes a vertical guide rod 601 provided on the middle mold plate 301 , and a vertical guide hole 602 is provided on the horizontal slider 403 . The vertical guide rod 601 is movably inserted into a corresponding vertical guide hole 602 .

[0060] The upward guide assembly 5 of the present invention includes a guide drive plate 501 provided on the transverse track bracket 401, the guide drive plate 501 is provided with a guide groove 502, a connecting frame 503 is provided above the intermediate mold plate 301, the connecting frame 503 is provided with a drive shaft 504, and the drive shaft 504 is movably provided in the guide groove 502;

[0061] The guide groove 502 includes a transverse guide groove 5021 and oblique guide grooves 5022 provided at both ends of the transverse guide groove 5021 . The oblique guide grooves 5022 are inclined upward and outward.

[0062] The inclined ejector assembly 7 of the present invention includes an opening 701 provided on the intermediate mold plate 301, the opening 701 communicating with the intermediate mold cavity 302, an upper inclined triangular block 702 and a lower inclined triangular block 7020 provided in the opening 701, the upper inclined triangular block 702 being provided below the lower inclined triangular block 7020;

[0063] The upper surface of the upper bevel triangular block 702 is tightly attached to the lower surface of the lower bevel triangular block 7020. The middle mold plate 301 is provided with a longitudinal hole 703. A reset guide rod 704 is movably provided in the longitudinal hole 703. The reset guide rod 704 is connected to the upper bevel triangular block 702. A spring structure 705 for controlling the reset of the upper bevel triangular block 702 is provided between the reset guide rod 704 and the middle mold plate 301. The upper bevel triangular block 702 and the lower bevel triangular block 7020 are respectively arranged as a forward triangle and a reverse triangle.

[0064] A horizontal position maintaining assembly 706 is provided between the upper inclined triangle block 702 and the transverse track bracket 401. The horizontal position maintaining assembly 706 is used to control the upper inclined triangle block 702 to move left and right following the middle mold plate 301, and to keep the horizontal height of the upper inclined triangle block 702 unchanged when the middle mold plate 301 moves upward.

[0065] The horizontal position maintaining assembly 706 of the present invention includes a horizontal maintaining guide rod 7061 provided on the horizontal track bracket 401, and a height maintaining guide hole 7062 is provided on the upper end of the upper inclined triangle block 702. The height maintaining guide hole 7062 is sleeved in the horizontal maintaining guide rod 7061 and can move.

[0066] When the middle mold plate 301 moves to the two ends of the guide groove 502 and moves upward, the middle mold plate 301 drives the lower inclined triangle block 7020 to move upward synchronously, and the upper inclined triangle block 702 maintains a constant height position under the cooperation of the horizontal retaining guide rod 7061 and the height retaining guide hole 7062;

[0067] The lower bevel triangular block 7020 is ejected downward relative to the middle mold plate 301 and pushed backward. At this time, the lower bevel triangular block 7020 continues to descend relative to the middle mold plate 301 and ejects the internal product to the rear side.

[0068] The opening and closing control component 9 of the present invention includes a horizontal synchronization groove 901 arranged on one side of the longitudinal base plate 201, and a synchronization slider 902 is movably arranged left and right in the horizontal synchronization groove 901. The synchronization slider 902 is symmetrically arranged front and back with a first hinge part 903, and the front and rear side walls of the two movable molds 203 are each provided with a second hinge seat 904. A synchronization connecting rod 905 is hinged between the first hinge part 903 and a corresponding second hinge seat 904.

[0069] The linkage assembly 8 described in the present invention includes a linkage frame 801 extending outward from the synchronous connecting rod 404, a horizontal rack guide hole 802 is provided on one side of the horizontal synchronous groove 901, and a horizontal movable rack 803 is movably provided in the horizontal rack guide hole 802, and the outer end of the horizontal movable rack 803 is connected to the linkage frame 801, and a linkage shaft is provided on the outer side of the horizontal synchronous groove 901, a reciprocating disc 805 is provided on the upper end of the linkage shaft, an eccentric hinge shaft 806 is provided on the reciprocating disc 805, a linkage hinge shaft 807 is provided in the middle of the synchronous slider 902, a linkage connecting rod 808 is hinged between the eccentric hinge shaft 806 and the linkage hinge shaft 807, and a forward and reverse gear 809 is provided at the lower end of the linkage shaft, and the forward and reverse gears 809 and the horizontal movable rack 803 are engaged for transmission.

[0070] The opening and closing control assembly 9 drives the front and rear movable molds 203 to close along the longitudinal track 202, combining with the middle cavity 302 of the left middle movable cavity assembly 3 to form a complete cavity. The feed chamber 102 of the injection molding assembly 1 feeds the granular raw material into the heating chamber 103, where it is melted and then injected into the cavity through the material barrel 104 to complete the filling.

[0071] The raw material is cooled and solidified under pressure in the cavity. At this time, the middle movable cavity component 3 on the right has moved to the right outer end of the left and right synchronous moving components 4, waiting for unloading.

[0072] The unloading stage takes the middle movable cavity component on the right as an example;

[0073] Movement of the intermediate movable cavity assembly:

[0074] The horizontal electric track 402 of the left and right synchronous movement assembly 4 drives the two horizontal slides 403 to move synchronously to the right, causing the right middle mold plate 301 to separate from the separation mold assembly 2 and move to above the right unloading conveyor line 10. The vertical guide rod 601 of the vertical holding assembly 6 cooperates with the vertical guide hole 602 to ensure the horizontal stability of the middle mold plate 301 during movement.

[0075] Upward guide and inclined top unloading

[0076] When the driving shaft 504 of the middle mold plate 301 moves to the inclined guide groove 5022 of the guide driving plate 501, it moves upward along the inclined guide groove 5022, driving the middle mold plate 301 to lift up. At this time, the inclined ejector assembly 7 is in action: the upper inclined triangle block 702 rises with the middle mold plate 301,

[0077] The lower beveled triangular block 7020 is maintained in a horizontal position by the transverse retaining guide rod 7061. Due to the contact between the bevels, the lower beveled triangular block 7020 slides downward relative to the upper beveled triangular block 702, pushing the upper beveled triangular block 702 backward. The lower beveled triangular block 7020 moves downward relative to the middle mold plate 301, and the inclined surface of the lower beveled triangular block 7020 gradually ejects the product from the middle mold cavity 302 and drops it onto the discharge conveyor line 10. The spring structure 705 pushes the upper beveled triangular block 702 back to its original position after discharge.

[0078] Separate mold assembly opening and resetting

[0079] The linkage assembly 8 synchronizes its movements: the synchronization connecting rod 404 pulls the horizontal movable rack 803 through the linkage frame 801, driving the forward and reverse gears 809 and the reciprocating disk 805 to rotate. The linkage link 808 drives the synchronization slider 902 to reciprocate within the horizontal synchronization groove 901. This process allows the two movable molds 203 to open and close. The movable molds 203 are separated by the synchronization link 905, facilitating the entry of the left-side middle movable cavity assembly 3.

[0080] Cycle switching phase

[0081] After the right intermediate movable cavity assembly 3 has finished unloading, the left and right synchronous moving assemblies 4 drive it to move leftward, while the left intermediate movable cavity assembly 3 also moves leftward synchronously. The split mold assembly 2 is closed again by the opening and closing control assembly 9, and is combined with the right intermediate movable cavity assembly 3 to form the next injection molding cycle.

[0082] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. An automatic unloading robot assembly used in an injection molding device, comprising an injection molding assembly (1), characterized in that: Also included is a separation mold assembly (2) that can be separated frontward and rearward; Two intermediate movable cavity assemblies (3) spaced apart from each other, the intermediate movable cavity assemblies (3) being capable of being combined with the separation mold assembly (2) to form a completed cavity; Left and right synchronous moving components (4) are used to connect the two intermediate movable cavity components (3) and keep the two intermediate movable cavity components (3) moving synchronously; An upward guide assembly (5), the upward guide assembly (5) being connected to the two intermediate movable cavity assemblies (3) and used for controlling the upward movement of the intermediate movable cavity assembly (3) when the intermediate movable cavity assembly (3) moves to one side of the left and right synchronous moving assembly (4); A vertical holding assembly (6) is provided between the upward guide assembly (5) and the left-right synchronous moving assembly (4), and is used to maintain the vertical placement state of the intermediate movable cavity assembly (3) when it moves upward; An inclined ejector assembly (7) is disposed in the intermediate movable cavity assembly (3) and ejects the product when the intermediate movable cavity assembly (3) moves upward; An opening and closing control component (9), the opening and closing control component (9) and the separation mold component (2) are used to control the separation and closing of the separation mold component (2); A linkage assembly (8), the linkage assembly (8) being connected to the opening and closing control assembly (9) and the left and right synchronous movement assembly (4); A discharge conveying line (10) is provided on each side of the left and right synchronous moving components (4).

2. The automatic unloading robot assembly used in injection molding equipment according to claim 1, characterized in that: The injection molding assembly (1) comprises a feeding support (101), a feeding cabin (102) is provided on the feeding support (101), a heating cabin (103) is connected below the feeding cabin (102), a material barrel (104) is provided below the heating cabin (103), and the material barrel (104) is connected to the separation mold assembly (2).

3. The automatic unloading robot assembly used in injection molding equipment according to claim 2, characterized in that: The separation mold assembly (2) comprises a longitudinal bottom plate (201) arranged on one side of the material barrel (104), a longitudinal track (202) being arranged on the longitudinal bottom plate (201), movable molds (203) being arranged at the front and rear ends of the longitudinal track (202), an end cavity (204) being arranged on the inner wall of the movable mold (203), an ejector pin fixing seat (205) being arranged at the front and rear ends of the longitudinal bottom plate (201), an intermediate ejector pin (206) being arranged on the upper cover of the ejector pin fixing seat (205) facing the separation mold assembly (2), an ejector pin hole (207) being arranged in the middle of the movable mold (203), and the intermediate ejector pin (206) being movably inserted into a corresponding ejector pin hole (207).

4. The automatic unloading robot assembly used in injection molding equipment according to claim 3, characterized in that: The intermediate movable cavity assembly (3) comprises an intermediate mold plate (301), and an intermediate cavity (302) is provided in the middle of the intermediate mold plate (301); The two end cavities (204) and a corresponding middle cavity (302) form a complete product cavity.

5. The automatic unloading robot assembly used in injection molding equipment according to claim 4, characterized in that: The left-right synchronous moving assembly (4) comprises a transverse track bracket (401) arranged transversely above the longitudinal bottom plate (201); a transverse electric track (402) is arranged on the transverse track bracket (401); two transverse sliders (403) are movably arranged on the transverse electric track (402); a synchronous connecting rod (404) is connected between the two transverse sliders (403); The vertical holding assembly (6) comprises a vertical guide rod (601) arranged on the middle mold plate (301), and a vertical guide hole (602) is provided on the horizontal slider (403). The vertical guide rod (601) is movably inserted into a corresponding vertical guide hole (602).

6. The automatic unloading robot assembly used in injection molding equipment according to claim 5, characterized in that: The upward guide assembly (5) includes a guide drive plate (501) arranged on the transverse track bracket (401), a guide groove (502) being provided on the guide drive plate (501), a connecting frame (503) being provided above the intermediate mold plate (301), a driving shaft (504) being provided on the connecting frame (503), and the driving shaft (504) being movably provided in the guide groove (502); The guide groove (502) comprises a transverse guide groove (5021) and oblique guide grooves (5022) arranged at both ends of the transverse guide groove (5021), and the oblique guide grooves (5022) are arranged to be inclined toward the outside and upward.

7. The automatic unloading robot assembly used in injection molding equipment according to claim 6, characterized in that: The inclined ejector assembly (7) comprises an opening (701) provided on the intermediate mold plate (301), the opening (701) being connected to the intermediate mold cavity (302), an upper inclined triangular block (702) and a lower inclined triangular block (7020) being provided in the opening (701), the upper inclined triangular block (702) being provided below the lower inclined triangular block (7020); The upper surface of the upper bevel triangle block (702) is closely attached to the lower surface of the lower bevel triangle block (7020); a longitudinal hole (703) is provided on the middle mold plate (301); a reset guide rod (704) is movably provided in the longitudinal hole (703); the reset guide rod (704) is connected to the upper bevel triangle block (702); a spring structure (705) for controlling the reset of the upper bevel triangle block (702) is provided between the reset guide rod (704) and the middle mold plate (301); the upper bevel triangle block (702) and the lower bevel triangle block (7020) are respectively arranged in the form of a forward triangle and a reverse triangle; A horizontal position maintaining assembly (706) is provided between the upper inclined triangle block (702) and the transverse track bracket (401). The horizontal position maintaining assembly (706) is used to control the upper inclined triangle block (702) to move left and right following the middle mold plate (301), and to maintain the horizontal height of the upper inclined triangle block (702) unchanged when the middle mold plate (301) moves upward.

8. The automatic unloading robot assembly used in injection molding equipment according to claim 7, characterized in that: The horizontal position maintaining assembly (706) comprises a transverse maintaining guide rod (7061) arranged on the transverse track bracket (401); a height maintaining guide hole (7062) is provided at the upper end of the upper inclined triangle block (702); and the height maintaining guide hole (7062) is sleeved in the transverse maintaining guide rod (7061) and is movable.

9. The automatic unloading robot assembly used in injection molding equipment according to claim 8, characterized in that: The opening and closing control assembly (9) comprises a transverse synchronous groove (901) provided on one side of the longitudinal bottom plate (201), a synchronous slider (902) being provided in the transverse synchronous groove (901) for left and right movement, a first hinge portion (903) being provided symmetrically front and back on the synchronous slider (902), a second hinge seat (904) being provided on each of the front and rear side walls of the two movable molds (203), and a synchronous connecting rod (905) being hingedly connected between the first hinge portion (903) and a corresponding second hinge seat (904).

10. The automatic unloading robot assembly used in injection molding equipment according to claim 9, characterized in that: The linkage assembly (8) includes a linkage frame (801) arranged on the synchronous connecting rod (404) and extending outward, a transverse rack guide hole (802) is provided on one side of the transverse synchronous groove (901), a transverse movable rack (803) is movably provided in the transverse rack guide hole (802), the outer end of the transverse movable rack (803) is connected to the linkage frame (801), a linkage shaft is provided on the outer side of the transverse synchronous groove (901), and the upper end of the linkage shaft is A reciprocating disc (805) is provided, an eccentric hinge shaft (806) is provided on the reciprocating disc (805), a linkage hinge shaft (807) is provided in the middle of the synchronous slider (902), a linkage connecting rod (808) is hinged between the eccentric hinge shaft (806) and the linkage hinge shaft (807), a forward and reverse gear (809) is provided at the lower end of the linkage rotating shaft, and the forward and reverse gear (809) and the transverse movable rack (803) are engaged for transmission.

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