Pull-down type inclined core-pulling injection mold

Abstract

The invention relates to a pull-down type inclined core-pulling injection mold, and belongs to the technical field of injection molds. The injection mold sequentially comprises an upper mold fixing plate, an upper mold plate, a lower mold plate, a lower mold fixing plate, a jacking assembly and a supporting base from top to bottom, and is characterized by further comprising a pull-down type inclined core-pulling mechanism which is arranged on the supporting base and is used for forming an inverted fastener, the pull-down type inclined core pulling mechanism comprises a pull-down driving piece arranged on the supporting base, a pull-down driving block connected with an output shaft of the pull-down driving piece, an inclined core pulling block installed on the pull-down driving block in an inclined sliding mode and a forming block arranged on the inclined core pulling block and used for forming an inverted buckle groove; when the pull-down driving piece drives the pull-down driving block to move downwards, the inclined core pulling block slides on the pull-down driving block in an inclined mode, and the inclined core pulling block drives the forming block to be separated from the inverted buckle groove horizontally. The demolding device has the effect of reducing the situation of blanking caused by damage of the inverted buckle piece during demolding of the tail lamp apron board.

Description

Technical Field

[0001] This application relates to the technical field of injection molds, and in particular, to a pull-down type inclined core-pulling injection mold. Background Art

[0002] An injection mold is a precision tool that injects molten plastic into a cavity under high temperature and pressure to form a product, mainly composed of a cavity, a core, a gating system, and an ejection mechanism. After the mold is closed, the plastic fills the cavity through the gate, and after cooling and solidifying, the ejection mechanism pushes out the finished product to complete an injection cycle.

[0003] Currently, an injection mold is required to manufacture an automotive taillight skirt panel. As Figure 1 shown, the overall shape of the automotive taillight skirt panel 9 is V-shaped, and an inverted fastener 91 is provided at the bottom of the V-shaped groove. The side wall of the inverted fastener 91 has an inverted buckle groove 911, and the opening direction of the inverted buckle groove 911 intersects with the V-shaped groove of the automotive taillight skirt panel 9.

[0004] When the above mold is demolded, since the opening direction of the V-shaped groove is parallel to the mold opening direction, the product is likely to interfere with the forming block in the inverted buckle groove, causing damage to the product itself. Therefore, it is necessary to design an injection mold that can adapt to the demolding of this product. Summary of the Invention

[0005] In order to reduce the damage of the inverted fastener during the demolding of the taillight skirt panel, this application provides a pull-down type inclined core-pulling injection mold.

[0006] The pull-down type inclined core-pulling injection mold provided by this application adopts the following technical solutions: A pull-down type inclined core-pulling injection mold successively includes an upper mold fixing plate, an upper template, a lower template, a lower mold fixing plate, a jacking assembly, and a support base from top to bottom. It is characterized in that it further includes a pull-down type inclined core-pulling mechanism arranged on the support base and used for forming the inverted fastener. The pull-down type inclined core-pulling mechanism includes a pull-down driving part arranged on the support base, a pull-down driving block connected to the output shaft of the pull-down driving part, an inclined core-pulling block slidably installed on the pull-down driving block in an inclined manner, and a forming block arranged on the inclined core-pulling block and used for forming the inverted buckle groove. When the pull-down driving part drives the pull-down driving block to move downward, the inclined core-pulling block slides on the pull-down driving block in an inclined manner, and the inclined core-pulling block drives the forming block to horizontally disengage from the inverted buckle groove.

[0007] By adopting the above technical solutions, the pull-down type inclined core-pulling mechanism can be used to adapt to the demolding of the automotive taillight skirt panel, avoiding interference between the forming block in the inverted buckle groove of the product and the product, which may cause product damage. When the pull-down driving part drives the pull-down driving block to move downward, the forming block can be driven to horizontally disengage from the inverted buckle groove, and the demolding can be smoothly completed.

[0008] Optionally, the support base is provided with a guiding block for guiding the lifting of the downward pulling driving block. The bottom and side wall of the guiding block are fixedly connected to the downward pulling driving member and the lower template respectively. The guiding block is provided with a guiding lifting groove for the downward pulling driving block to lift and arrange.

[0009] By adopting the above technical solution, the guiding block can guide the lifting of the downward pulling driving block, ensuring the stability and accuracy of the lifting of the downward pulling driving block, enabling the inclined core-pulling block to more accurately drive the forming block to horizontally disengage from the undercut groove, and avoiding damage caused by interference between the product and the forming block.

[0010] Optionally, the downward pulling driving block is provided with an inclined sliding groove for the inclined core-pulling block to slide on the side facing the lower template. The inclined sliding groove gradually inclines towards the lower template from top to bottom.

[0011] By adopting the above technical solution, setting the inclined sliding groove enables the inclined core-pulling block to achieve inclined sliding on the downward pulling driving block. When the downward pulling driving member drives the downward pulling driving block to move downward, the inclined core-pulling block can move along the inclined sliding groove, switching the vertical movement to the horizontal movement of the forming block, meeting the demolding requirements of the undercut fastener of the automotive tail light skirt plate with an undercut groove.

[0012] Optionally, the lower template is provided with a core-pulling arrangement groove for arranging the inclined core-pulling block. The opposite sides of the inclined core-pulling block are provided with positioning surfaces. The lower template is provided with a pressing block in the core-pulling arrangement groove for restricting the upward movement of the inclined core-pulling block.

[0013] By adopting the above technical solution, the lower template is provided with a core-pulling arrangement groove for arranging the inclined core-pulling block, and the opposite sides of the inclined core-pulling block are provided with positioning surfaces, which can ensure the accurate installation and movement of the inclined core-pulling block; the lower template is provided with a pressing block in the core-pulling arrangement groove to restrict the upward movement of the inclined core-pulling block, ensuring the stability and accuracy of the movement of the inclined core-pulling block in the vertical direction and reducing unnecessary displacement during the working process, which may affect the demolding effect.

[0014] Optionally, two sets of forming sliding grooves are spaced apart on the inclined core-pulling block. The forming block includes a forming portion and a limiting portion arranged in the forming sliding groove in a limiting manner. The lower template is provided with a lower die core for forming the product. The lower die core is provided with a forming sliding groove for the forming portion to insert along the horizontal direction.

[0015] By adopting the above technical solution, two sets of installation sliding grooves are provided on the inclined core-pulling block, which is convenient for installing the forming block. The limiting portion of the forming block can be arranged in the installation sliding groove in a limiting manner, ensuring the stable installation of the forming block. The lower template is provided with a forming sliding groove for the forming portion to insert, enabling the forming portion to accurately form the undercut groove and ensuring the forming quality of the undercut groove of the automotive tail light skirt plate.

[0016] Optionally, a positioning and pressing groove is provided at the top of the inclined core-pulling block, and a positioning and pressing block for inserting into the positioning and pressing groove is provided at the bottom of the upper template.

[0017] By adopting the above technical solution, a positioning and pressing groove and a positioning and pressing block are provided in the pull-down inclined core-pulling injection mold, which can achieve accurate positioning of the upper template and the inclined core-pulling block, avoid the deviation of the inclined core-pulling block during the working process, improve the injection accuracy. At the same time, the positioning and pressing block inserted into the positioning and pressing groove can further stabilize the inclined core-pulling block and ensure the accurate molding of the inverted buckle groove of the molding block.

[0018] Optionally, a pre-tightening assembly is provided in the forming chute of the lower template. The pre-tightening assembly includes a movable ring slidably disposed in the forming chute, a fixed ring fixed to the forming chute, and a pre-tightening elastic member connecting the movable ring and the fixed ring. Both the movable ring and the fixed ring are provided with connecting components for cooperating and connecting with the limiting portion.

[0019] By adopting the above technical solution, the movable ring, the fixed ring and the pre-tightening elastic member of the pre-tightening assembly can buffer the impact force during the demolding process, avoid damage to the molding block and the product, and the connecting components of the movable ring and the fixed ring cooperate and connect with the limiting portion, which can ensure the stability of the molding block during the injection and demolding processes.

[0020] Optionally, the connecting component includes a connecting block and a connecting elastic member connecting the connecting block. Both the movable ring and the fixed ring are provided with installation grooves for arranging the connecting block. A first arrangement groove and a second arrangement groove for arranging the connecting block are provided outside the limiting portion. A limiting inclined surface for the limiting portion to abut and push is provided on one side of the connecting block facing the inclined core-pulling block.

[0021] By adopting the above technical solution, the structural composition of the connecting component is specifically disclosed. The first arrangement groove and the second arrangement groove are provided outside the limiting portion, which can enable the connecting block to better cooperate and connect with the limiting portion; the limiting inclined surface on the connecting block can play a pushing role when the limiting portion abuts, improving the assembly efficiency.

[0022] Optionally, the first arrangement groove is used for cooperating and fixing with the connecting component of the fixed ring, and the extending length of the first arrangement groove is greater than the width of the movable ring.

[0023] By adopting the above technical solution, the extending length of the first arrangement groove being greater than the width of the movable ring can ensure that the movable ring does not affect the connection and cooperation between the molding block and the fixed ring during the demolding process and other processes, enabling the demolding operation and other operations to proceed smoothly.

[0024] Optionally, the limiting portion is also provided with an adjustment component for adjusting the fixing ring, the adjustment component includes an adjustment column and an adjustment block, the adjustment column is rotatably mounted on the limiting portion, the adjustment block is slidably arranged along the axis of the limiting portion, and the adjustment block is provided with a driving portion that cooperates with the thread of the adjustment column.

[0025] By adopting the above technical solution, the adjustment column and the adjustment block cooperate, the adjustment block can slide along the axis of the limiting part, and the push ring can be adjusted, so that the mold can be better adapted to work under different working conditions.

[0026] In summary, the present application includes at least one of the following beneficial technical effects: The present application uses a pull-down inclined core-pulling mechanism. When the pull-down driving member drives the pull-down driving block to move downward, the inclined core-pulling block slides obliquely on the pull-down driving block, driving the forming block to horizontally detach from the undercut groove, thereby avoiding interference between the product and the forming block in the undercut groove and preventing product damage. The guide block can guide the pull-down drive block to rise and fall, ensuring the stability of the pull-down drive block; The present application can limit the vertical and horizontal movement of the oblique core-pulling block by setting the positioning surface and the positioning clamping groove, thereby ensuring the molding quality and demoulding stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the structure of the automobile taillight skirt in the embodiment of the present application.

[0028] Figure 2 It is a schematic diagram of the overall structure of an embodiment of the present application.

[0029] Figure 3 It is a structural schematic diagram of removing the upper template in an embodiment of the present application.

[0030] Figure 4 It is a cross-sectional schematic diagram of the pull-down inclined core-pulling mechanism of the embodiment of the present application.

[0031] Figure 5 It is an exploded schematic diagram of the pull-down oblique core-pulling mechanism of the embodiment of the present application.

[0032] Figure 6 It is a schematic diagram of the structure of the clamping block and the clamping trough according to the embodiment of the present application.

[0033] Figure 7 It is a schematic diagram of the structure of the preload assembly of an embodiment of the present application.

[0034] Figure 8 yes Figure 7 A local enlarged schematic diagram of point A in the middle.

[0035] Description of the reference numerals: 1. Upper die fixing plate; 2. Upper template; 21. Positioning and pressing block; 3. Lower template; 31. Forming lower die; 311. Forming chute; 3111. First chute; 3112. Second chute; 32. Core-pulling arrangement groove; 321. Pressing sink groove; 33. Pressing block; 4. Lower die fixing plate; 5. Jacking assembly; 6. Support base; 7. Pull-down type inclined core-pulling mechanism; 71. Pull-down driving part; 711. Fixed side groove; 72. Pull-down driving block; 721. Installation chute; 722. Inclined chute; 73. Inclined core-pulling block; 731. Positioning surface; 732. Insertion chute; 733. Positioning and pressing groove; 74. Forming block; 741. Forming part; 7411. Forming end; 742. Limiting part; 7421. First arrangement groove; 7422. Second arrangement groove; 7423. Adjusting chute; 743. Adjusting block; 7431. Driving part; 744. Adjusting column; 75. Guide block; 751. Guide lifting groove; 8. Pre-tightening assembly; 81. Movable ring; 811. Connecting block; 8111. Limiting inclined surface; 812. Connecting elastic part; 813. Installation groove; 82. Fixed ring; 83. Pre-tightening elastic part; 9. Tail lamp skirt board; 91. Inverted fastener; 911. Inverted fastener groove. Detailed implementation manners

[0036] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Since the disclosed embodiments of the present invention can be arranged in different directions, these terms indicating directions are only for illustration and should not be regarded as limitations. For example, "upper" and "lower" are not necessarily limited to the directions opposite to or consistent with the direction of gravity. In addition, the features defined as "first" and "second" may explicitly or implicitly include one or more of such features.

[0037] The following will Figures 1-8 make a further detailed description of the present application.

[0038] The embodiment of the present application discloses a pull-down type inclined core-pulling injection mold.

[0039] Referring to Figure 1 , a pull-down type inclined core-pulling injection mold successively includes an upper die fixing plate 1, an upper template 2, a lower template 3, a lower die fixing plate 4, a jacking assembly 5 and a support base 6 from top to bottom.

[0040] Referring to Figure 1 andFigure 2 The lower template 3 is fixedly installed on the lower die fixing plate 4. On the top of the lower template 3, a lower forming die 31 for forming products is installed. The lower forming die 31 is integrally in the shape of a rectangular block, and its top has a cavity for forming two products at one time. The taillight skirt plate is formed in a posture with a V-shaped groove opening upwards, and its reverse buckle groove faces the side wall in the length direction of the lower forming die 31.

[0041] In order to facilitate the forming and demoulding of the reverse fastener, the injection mould further includes a pull-down type inclined core-pulling mechanism 7 for reducing the probability of damage to the reverse fastener during product demoulding. The pull-down type inclined core-pulling mechanism 7 includes a pull-down driving part 71, a pull-down driving block 72, an inclined core-pulling block 73 and a forming block 74.

[0042] Combined Figure 4 and Figure 5 With reference to

[0043] and

[0044]

[0045] The pull-down driving part 71 is arranged on one side in the length direction of the support base 6. In this embodiment, the pull-down driving part 71 is a hydraulic cylinder, and its output shaft is vertically fixed upwards on the top of the support base 6. The pull-down driving block 72 is fixed to the output shaft of the pull-down driving part 71, and the bottom of the pull-down driving block 72 has an installation chute 721 penetrating both end faces. The cross-section of the installation chute 721 is in the shape of a T, and the side wall of the output shaft of the pull-down driving part 71 has a fixed side groove 711 matched with the installation chute 721. On the top of the pull-down driving part 71, a guiding block 75 for guiding the lifting of the pull-down driving block 72 is fixed. The bottom wall of the guiding block 75 is bolt-fixed to the top of the pull-down driving part 71, and the side wall in the horizontal direction of the guiding block 75 is bolt-fixed to the lower template 3. On the side of the guiding block 75 facing the lower template 3, there is a guiding lifting chute 751 for arranging the pull-down driving block 72. The top and bottom of the guiding lifting chute 751 penetrate the guiding block 75. The cross-section of the guiding lifting chute 751 in the horizontal direction is in the shape of a T, and the pull-down driving block 72 has a guiding part arranged in the guiding lifting chute 751 in a limiting manner. The pull-down driving block 72 is in sliding fit with the inclined core-pulling block 73. On the side of the pull-down driving block 72 facing the lower template 3, there is an inclined chute 722 for arranging the inclined core-pulling block 73. The inner wall of the inclined chute 722 gradually inclines inwards towards the lower template 3 from top to bottom. Among them, the cross-section of the inclined chute 722 is also in the shape of a T for ensuring the sliding stability of the inclined core-pulling block 73 and the pull-down driving block 72. The outer side wall of the inclined chute 722 facing the lower template 3 is attached to the inclined core-pulling block 73, increasing the abutting area between the inclined core-pulling block 73 and the pull-down driving block 72 and further improving the sliding stability of the inclined core-pulling block 73.The side wall of the lower template 3 has a core-pulling arrangement groove 32 for arranging the inclined core-pulling block 73. The core-pulling arrangement groove 32 is a rectangular groove with an open top, and both sides of the core-pulling arrangement groove 32 penetrate through to the outer side walls of the forming lower die 31 and the lower template 3 respectively. The opposite side walls of the inclined core-pulling block 73 parallel to the length direction of the forming lower die 31 are provided with positioning surfaces 731. The lower template 3 is provided with a pressing sunk groove 321 at the top opening of the core-pulling arrangement groove 32, and the positioning surface 731 is flush with the bottom wall of the pressing sunk groove 321. The lower template 3 is provided with a pressing block 33 for restricting the upward movement of the inclined core-pulling block 73 in the pressing sunk groove 321. The pressing block 33 is fixed to the pressing sunk groove 321 by bolts.

[0046] The forming block 74 is limited and installed on the inclined core-pulling block 73, and it includes a forming part 741 and a limiting part 742. Two groups of plugging sliding grooves 732 for vertically inserting the limiting part 742 are provided on one side of the inclined core-pulling block 73 away from the downward pulling driving block 72. The plugging sliding grooves 732 are T-shaped grooves penetrating through the upper and lower end faces of the inclined core-pulling block 73, and the limiting part 742 has a T-shaped block matching with the plugging sliding grooves 732.

[0047] The side wall of the forming lower die 31 is provided with a forming sliding groove 311 for arranging the forming block 74. The forming sliding groove 311 is a countersunk head groove, and specifically includes a first sliding groove 3111 matching with the forming part 741 and a second sliding groove 3112 matching with the limiting part 742. Both the forming part 741 and the limiting part 742 are cylinders with a rectangular cross-section, and the outer diameter of the limiting part 742 is larger than that of the forming part 741. The end of the forming part 741 has a forming end 7411 inserted into the forming lower die 31 and used for forming an undercut groove.

[0048] Refer to Figure 5 and Figure 6 Figure, the top of the inclined core-pulling block 73 is also provided with a positioning and pressing groove 733, and the bottom of the upper template 2 is provided with a positioning and pressing block 21 corresponding to the positioning and pressing groove 733. After the upper template 2 and the lower template 3 are closed, the positioning and pressing block 21 is inserted into the positioning and pressing groove 733, which can play a role in limiting the horizontal direction of the inclined core-pulling block 73, reduce the probability of the inclined core-pulling block 73 moving horizontally, and ensure the stability of the forming block 74 during injection molding.

[0049] The implementation principle of the downward-pulling type inclined core-pulling mechanism is as follows: When the downward-pulling driving part 71 is started, the downward-pulling driving block 72 descends vertically, and the inclined core-pulling block 73 is restricted from moving downward under the action of the core-pulling arrangement groove 32. Therefore, the inclined core-pulling block 73 slides obliquely along the inclined sliding groove 722. The inclined core-pulling block 73 moves from the bottom of the inclined sliding groove 722 to the top, and it moves horizontally away from the lower template 3. The horizontal movement of the inclined core-pulling block 73 drives the forming block 74 to move horizontally, so that the forming end 7411 disengages from the forming lower die 31, facilitating the subsequent lifting assembly 5 to push the product to be demolded vertically upward.

[0050] Refer to Figure 7 andFigure 8 To improve the stability of the forming block 74 during mold clamping, the lower template 3 is further provided with a pre-tightening assembly 8 in the forming chute 311. The pre-tightening assembly 8 includes a movable ring 81, a fixed ring 82 and a pre-tightening elastic member 83. In this embodiment, the cross-section of the limiting portion 742 in the second chute 3112 is circular.

[0051] The movable ring 81 is located at the bottom wall of the second chute 3112. It is integrally in the shape of a circular ring. A connecting assembly for cooperating and connecting with the limiting portion 742 is provided on the movable ring 81. The connecting assembly includes a connecting block 811 and a connecting elastic member 812. An installation groove 813 for arranging the connecting block 811 is provided inside the movable ring 81. The installation grooves 813 are arranged at intervals along the inner circumferential direction of the movable ring 81. The connecting elastic member 812 is a compression spring member, and its two ends are respectively fixed to the inner wall of the installation groove 813 and the connecting block 811, and is used to drive the connecting block 811 to have a tendency to slide radially along the movable ring 81.

[0052] On the outer wall of the limiting portion 742 close to the forming portion 741, a first arrangement groove 7421 for radially inserting the connecting block 811 is provided at intervals. The length of the first arrangement groove 7421 along the axis of the limiting portion 742 is greater than the width of the connecting block 811, so that a sliding gap for the connecting block 811 to slide is formed in the first arrangement groove 7421. Among them, a limiting inclined surface 8111 for the limiting portion 742 to abut against is further provided on one side of the connecting block 811 facing the inclined core-pulling block 73. The limiting inclined surface 8111 gradually inclines inward from the limiting portion 742 to the forming portion 741 direction, so that after the forming block 74 is inserted into the forming chute 311, it is convenient for the connecting block 811 to automatically snap into the first arrangement groove 7421.

[0053] The fixed ring 82 is located on the side of the movable ring 81 away from the forming portion 741. The fixed ring 82 and the movable ring 81 are fixed by a pre-tightening elastic member 83. The pre-tightening elastic member 83 is a spring member. The fixed ring 82 and the limiting portion 742 are also connected through a connecting assembly. A second arrangement groove 7422 is provided on the side wall of the limiting portion 742, and the second arrangement groove 7422 is adaptively inserted with the connecting block 811, that is, the horizontal movement of the limiting portion 742 drives the fixed ring 82 to move back and forth. Among them, the second arrangement groove 7422 and the first arrangement groove 7421 are arranged staggeredly in the axial direction of the limiting portion 742.

[0054] An adjustment assembly for adjusting the fixing ring 82 is further provided on the limiting portion 742. The adjustment assembly includes an adjustment block 743 and an adjustment column 744. The second arrangement groove 7422 is formed in the adjustment block 743. The adjustment block 743 is slidably mounted along the length direction of the limiting portion 742. The limiting portion 742 has an adjustment sliding groove 7423 for the adjustment block 743 to slide. The adjustment column 744 and the limiting portion 742 are coaxially arranged, and the adjustment column 744 is rotatably mounted on the limiting portion 742. The adjustment column 744 has a threaded section that is in threaded cooperation with the adjustment block 743, and the bottom of the adjustment block 743 has a driving portion 7431 that cooperates with the threaded section.

[0055] When the adjustment block 743 is located at the end of the adjustment sliding groove 7423 away from the forming portion 741, the connecting elastic member 812 is in an uncompressed state; as the adjustment block 743 moves towards the forming portion 741, the connecting elastic member 812 is gradually compressed. During demolding, the forming block 74 moves rightward as a whole, and the pre-tightening elastic member 83 gradually recovers its deformation. After the pre-tightening elastic member 83 is reset, it drives the movable ring 81 to move in the sliding gap, relieving the pressure of the pre-tightening assembly on the forming portion 741.

[0056] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereby. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A pull-down inclined core-pulling injection mold, which successively includes an upper mold fixing plate (1), an upper template (2), a lower template (3), a lower mold fixing plate (4), a jacking assembly (5), and a support base (6) from top to bottom, and is characterized in that, It further includes a pull-down type inclined core-pulling mechanism (7) arranged on the support base (6) and used for forming an undercut fastener. The pull-down type inclined core-pulling mechanism (7) includes a pull-down driving member (71) arranged on the support base (6), a pull-down driving block (72) connected to the output shaft of the pull-down driving member (71), an inclined core-pulling block (73) slidably mounted on the pull-down driving block (72) in an inclined manner, and a forming block (74) arranged on the inclined core-pulling block (73) and used for forming an undercut groove. When the pull-down driving member (71) drives the pull-down driving block (72) to move downward, the inclined core-pulling block (73) slides on the pull-down driving block (72) in an inclined manner, and the inclined core-pulling block (73) drives the forming block (74) to horizontally disengage from the undercut groove.

2. The pull-down type inclined core-pulling injection mold according to claim 1, characterized in that, The support base (6) is provided with a guiding block (75) for guiding the lifting of the pull-down driving block (72). The bottom and side wall of the guiding block (75) are respectively fixedly connected to the pull-down driving member (71) and the lower template (3). The guiding block (75) is provided with a guiding lifting groove (751) for the pull-down driving block (72) to be arranged for lifting.

3. A pull-down inclined core-pulling injection mold according to claim 1, characterized in that, One side of the pull-down driving block (72) facing the lower template (3) is provided with an inclined sliding groove (722) for the inclined core-pulling block (73) to slide. The inclined sliding groove (722) is inclined downward towards the lower template (3) from top to bottom.

4. A pull-down inclined core-pulling injection mold according to claim 1, characterized in that, The lower template (3) is provided with a core-pulling arrangement groove (32) for the inclined core-pulling block (73) to be arranged. Opposite sides of the inclined core-pulling block (73) are provided with positioning surfaces (731). The lower template (3) is provided with a pressing block (33) in the core-pulling arrangement groove (32) for restricting the upward movement of the inclined core-pulling block (73).

5. A pull-down inclined core-pulling injection mold according to claim 1, characterized in that, Two groups of installation sliding grooves (721) are spaced apart on the inclined core-pulling block (73); the forming block (74) includes a forming portion (741) and a limiting portion (742) arranged in the installation sliding grooves (721) in a limiting manner. The lower template (3) is provided with a forming lower die (31) for forming a product. The forming lower die (31) is provided with a forming sliding groove (311) for the forming portion (741) to be inserted along the horizontal direction.

6. The pull-down inclined core-pulling injection mold according to claim 1, characterized in that, The top of the inclined core-pulling block (73) is provided with a positioning pressing groove (733). The bottom of the upper template (2) is provided with a positioning pressing block (21) for inserting into the positioning pressing groove (733).

7. The pull-down inclined core-pulling injection mold according to claim 5, characterized in that, The lower template (3) is provided with a pre-tightening assembly (8) in the forming sliding groove (311). The pre-tightening assembly (8) includes a movable ring (81) slidably arranged in the forming sliding groove (311), a fixed ring (82) fixed in the forming sliding groove (311), and a pre-tightening elastic member (83) connecting the movable ring (81) and the fixed ring (82). Both the movable ring (81) and the fixed ring (82) are provided with connecting assemblies for cooperating and connecting with the limiting portion (742).

8. The pull-down inclined core-pulling injection mold according to claim 7, wherein, The connecting component includes a connecting block (811) and a connecting elastic member (812) connecting the connecting block (811). Both the movable ring (81) and the fixed ring (82) are provided with mounting grooves (813) for arranging the connecting block (811). On the outside of the limiting portion (742), there are a first arrangement groove (7421) and a second arrangement groove (7422) for arranging the connecting block (811). On the side of the connecting block (811) facing the inclined core-pulling block (73), there is a limiting inclined surface (8111) for the limiting portion (742) to abut and push.

9. The pull-down type inclined core-pulling injection mold according to claim 8, characterized in that, The first arrangement groove (7421) is used to cooperate and fix with the connecting component of the fixed ring (82), and the extension length of the first arrangement groove (7421) is greater than the width of the movable ring (81).

10. A pull-down inclined core-pulling injection mold according to claim 9, characterized in that, The limiting portion (742) is further provided with an adjusting component for adjusting the fixed ring (82). The adjusting component includes an adjusting column (744) and an adjusting block (743). The adjusting column (744) is rotatably installed on the limiting portion (742). The adjusting block (743) is slidably arranged along the axis of the limiting portion (742). The adjusting block (743) is provided with a driving portion (7431) threadedly engaged with the adjusting column (744).

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