A fuel tank base mold for a vehicle and a molding method

Abstract

The application discloses a car refueling base mold and a forming method, and relates to the technical field of molds, which has the advantages that the car refueling base product is inclined during material taking, thereby avoiding scratching, and the technical scheme is as follows: a movable mold plate and a fixed mold plate are arranged, a cavity plate is assembled on the movable mold plate, a core plate matched with the cavity plate is assembled on the fixed mold plate, a gap between the cavity plate and the core plate forms a forming cavity of the car refueling base product when the mold is closed, the car refueling base product has a hinge mounting part and a lock catch mounting part, and a plurality of vertical ejector pins are slidably connected to the fixed mold plate.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of molds, in particular to an automobile fuel filler base mold and a molding method. BACKGROUND

[0002] Injection molding is a common process for manufacturing automobile fuel filler bases and other plastic parts. On an automated production line, the product is usually ejected from the core plate by a ejector pin mechanism after the static and dynamic molds are opened, and then it is grabbed and removed by a robot.

[0003] The automobile fuel filler base, as a protective interface permanently installed on the vehicle tank port, is usually integrally formed by oil-resistant and impact-resistant engineering plastics through injection molding. Its structure is a threaded or buckle base that matches the tank port. The inner wall of the automobile fuel filler base needs to tightly cooperate with the sealing ring of the vehicle tank cover to ensure that the fuel system maintains good airtightness during refueling and prevents oil and gas leakage.

[0004] However, when the ejector pin lifts the automobile fuel filler base product, the automobile fuel filler base product remains on the end face of the ejector pin. The automobile fuel filler base product will be wrapped around the end of the ejector pin due to cooling shrinkage. At this time, if the material is forcibly taken out, the inner wall of the automobile fuel filler base product will be scratched and deformed, affecting the yield of the automobile fuel filler base product. SUMMARY

[0005] To address the above technical deficiencies, the present application provides an automobile fuel filler base mold and molding method, which has the advantage of tilting the automobile fuel filler base product during material removal to avoid scratching.

[0006] To solve the above technical problems, the present application adopts the following technical solutions:

[0007] The present application provides an automobile fuel filler base mold, which includes a movable mold plate and a fixed mold plate. The movable mold plate is equipped with a cavity plate, and the fixed mold plate is equipped with a core plate that matches the cavity plate. When the molds are closed, the gap between the cavity plate and the core plate forms a molding cavity for the automobile fuel filler base product. The automobile fuel filler base product has a hinge mounting portion and a lock mounting portion. A plurality of vertical ejector pins are connected to the fixed mold plate by sliding.

[0008] An installation box with a hollow inner cavity is fixed to the outer wall of the fixed mold plate. A crossbar is connected to the installation box by sliding. After the mold is opened and the ejector pins are moved up to complete the ejection of the automobile fuel filler base product, the end of the crossbar is moved to a position corresponding to one of the ejector pins located between the core plate and the automobile fuel filler base product.

[0009] A pushing mechanism is provided at the end of the crossbar. The pushing mechanism rotates the automobile fuel filler base product around its hinge mounting portion, thereby tilting the automobile fuel filler base product.

[0010] By adopting the technical scheme, the pushing mechanism is arranged at the position of the ejector pin corresponding to the lock buckle mounting portion, so that the automobile fueling base product is inclined after demolding, the side of the lock buckle mounting portion of the automobile fueling base product is lifted, the automobile fueling base product is separated from most of the contact surface of the ejector pin, the possibility of scratching and deformation of the automobile fueling base product caused by the adhesion of the automobile fueling base product to the ejector pin when the robot takes the product is reduced, and the production yield and the mold maintenance cycle are improved.

[0011] If the multi-axis robot is used to incline the automobile fueling base product after gripping the automobile fueling base product, the method of taking the automobile fueling base product requires high performance of the robot, and the production cost of the product is increased. However, the automobile fueling base product is adjusted to be in an inclined state before being contacted with the robot, the performance requirement of the robot is reduced, and only simple clamping and linear moving functions are required, which is economical and universal and is suitable for large-scale automatic production.

[0012] Preferably, a slot is formed in the outer wall of the ejector pin corresponding to the lock buckle mounting portion, a vertical pressing block is integrally formed on the top wall of the slot, and a gap for inserting the end of the horizontal rod is formed between the vertical pressing block and the slot. The side of the vertical pressing block close to the mounting box is an inclined surface.

[0013] Preferably, the pushing mechanism comprises a fixed shaft fixed to the end of the horizontal rod, a first sleeve and a second sleeve rotatably sleeved on the fixed shaft, an L-shaped pressing rod and a first swing rod fixedly connected to the first sleeve and capable of being pressed downward by the vertical pressing block, and an L-shaped ejector rod and a third swing rod fixedly connected to the second sleeve and used for lifting the product. The first swing rod and the third swing rod are connected through a connecting assembly, and when the L-shaped pressing rod is pressed downward, the L-shaped ejector rod is synchronously and reversely rotated to lift the lock buckle mounting portion.

[0014] Preferably, the connecting assembly comprises an outer sleeve fixed to the horizontal rod, a limiting inner tube slidably connected in the outer sleeve, and a spring connecting the outer sleeve and the limiting inner tube. The end of the first swing rod is hingedly connected to a second swing rod, and the end of the third swing rod is hingedly connected to a fourth swing rod. Two strip-shaped grooves are formed in the outer wall of the outer sleeve and are arranged opposite to each other and communicate with the inside and outside. A short shaft is slidably connected in each strip-shaped groove, one end of the short shaft is fixed to the limiting inner tube, the other end of the short shaft extends out of the strip-shaped groove and is hingedly connected to the adjacent second swing rod or fourth swing rod. The rotation directions of the second swing rod and the fourth swing rod are opposite, so that the rotation directions of the L-shaped pressing rod and the L-shaped ejector rod are opposite.

[0015] Preferably, the movable mold plate is provided with a driving assembly for driving the horizontal rod to extend into the automobile fueling base product and the core plate after the mold is opened.

[0016] Preferably, the driving assembly comprises a driving rack connected with the movable mold plate, the driving rack is connected with a driven rack through a matched accelerating gear set, the driven rack is connected with the slot wall of the mounting box through a sliding rail, and the end of the driven rack is fixed with a connecting seat, and the cross rod penetrates through the connecting seat and can slide up and down relative to the connecting seat.

[0017] Preferably, the inner cavity of the mounting box is further fixed with a mounting plate, the mounting plate is provided with a guide groove formed by a horizontal section and an inclined section, a connecting shaft penetrates through the guide groove, a roller is coaxially nested on the connecting shaft and is in sliding connection with the guide groove, the connecting shaft penetrates out of the mounting plate and is fixed with the cross rod, when the connecting seat drives the cross rod to move horizontally, the connecting shaft slides along the horizontal section of the guide groove, and when the connecting shaft moves to the inclined section of the guide groove, the cross rod is guided to generate vertical displacement relative to the connecting seat.

[0018] Preferably, the movable mold plate is provided with a time delay mechanism.

[0019] Preferably, the time delay mechanism comprises a long rod fixed with the outer wall of the movable mold plate, a vertical strip-shaped sliding groove penetrates through the long rod, a moving block is in sliding connection in the strip-shaped sliding groove, one end of the moving block extending out of the long rod is fixed with a support, and the end of the support away from the sliding block is fixed with the driving rack.

[0020] A forming method of an automobile refueling base, comprising the following steps:

[0021] Step S1: mold injection: driving the movable mold plate and the fixed mold plate to close the mold, so that the cavity plate and the core plate jointly form a forming cavity, and then injecting molten plastic into the forming cavity to form an automobile refueling base product;

[0022] Step S2: mold opening and ejection of the automobile refueling base product: driving the movable mold plate and the fixed mold plate to separate to open the mold, and then driving a plurality of ejector pins to move upward to separate the automobile refueling base product from the core plate;

[0023] Step S3: posture adjustment of the automobile refueling base product: inserting the cross rod into the insertion slot of the corresponding ejector pin of the lock buckle mounting portion and moving upward, so that the automobile refueling base product rotates around the hinge mounting portion area and assumes an inclined posture;

[0024] Step S4: taking out the inclined automobile refueling base product.

[0025] The automobile refueling base product is inclined after demolding by setting the pushing mechanism at the position of the ejector pin corresponding to the lock buckle mounting portion, the side of the lock buckle mounting portion of the automobile refueling base product is lifted, the automobile refueling base product is disconnected from most of the contact surface of the ejector pin, the possibility of scratching and deformation of the automobile refueling base product caused by adhesion of the automobile refueling base product to the ejector pin when the mechanical hand takes out the product is reduced, and the production yield and the mold maintenance cycle are improved. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 This is a schematic diagram of the overall structure of this embodiment;

[0028] Figure 2 This is a structural schematic diagram illustrating the car refueling station product in this embodiment;

[0029] Figure 3 This is a structural schematic diagram illustrating the latch mounting part in this embodiment;

[0030] Figure 4 This embodiment Figure 3 Enlarged structural diagram at point A;

[0031] Figure 5 This is a schematic diagram illustrating the structure of the connecting plate in this embodiment;

[0032] Figure 6 This is a schematic diagram illustrating the structure of the connecting shaft in this embodiment;

[0033] Figure 7 This is a structural schematic diagram illustrating the fixed shaft in this embodiment;

[0034] Figure 8 This is a schematic diagram illustrating the structure of the vertical pressure block in this embodiment.

[0035] Explanation of reference numerals in the attached figures:

[0036] In the figure: 1, movable mold plate; 2, fixed mold plate; 21, core plate; 3, automobile fueling base product; 31, hinge mounting portion; 32, lock catch mounting portion; 4, ejector pin; 41, insertion slot; 42, vertical pressing block; 43, gap; 5, mounting box; 6, crossbar; 7, pushing mechanism; 71, fixed shaft; 72, first sleeve; 73, second sleeve; 74, L-shaped pressing rod; 75, first swing lever; 76, L-shaped ejector rod; 77, third swing lever; 78, outer sleeve; 79, limiting inner tube; 710, second swing lever; 711, fourth swing lever; 712, strip-shaped slot; 713, short shaft; 8, driving assembly; 81, driving rack; 82, transmission shaft; 83, driving gear; 84, driven gear; 85, driven gear; 86, driven rack; 87, connecting seat; 88, mounting plate; 89, guide slot; 810, connecting shaft; 811, reinforcing rod; 812, connecting plate; 9, time delay mechanism; 91, long rod; 92, strip-shaped sliding slot; 93, moving block; 94, bracket. DETAILED DESCRIPTION

[0037] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0038] An automobile fueling base mold and a molding method, as shown in Figures 1-8 , include a movable mold plate 1 and a fixed mold plate 2, the movable mold plate 1 is assembled with a cavity plate, the fixed mold plate 2 is assembled with a core plate 21 matched with the cavity plate, a gap 43 between the cavity plate and the core plate 21 forms a molding cavity of the automobile fueling base product 3 when the mold is closed, the automobile fueling base product 3 has a hinge mounting portion 31 and a lock catch mounting portion 32, and a plurality of vertical ejector pins 4 are slidingly connected to the fixed mold plate 2;

[0039] An installation box 5 with a hollow inner cavity is fixed to the outer wall of the fixed mold plate 2, and a crossbar 6 is slidingly connected to the installation box 5, after the mold is opened and the ejector pins 4 are moved up to complete the ejection demolding of the automobile fueling base product 3, the end of the crossbar 6 is moved to the position of one of the ejector pins 4 corresponding to the lock catch mounting portion 32, and is located between the core plate 21 and the automobile fueling base product 3;

[0040] The end of the crossbar 6 is provided with a pushing mechanism 7, and the pushing mechanism 7 rotates the automobile fueling base product 3 around the hinge mounting portion 31 position, so as to incline the automobile fueling base product 3.

[0041] In the above design, the push mechanism 7 is arranged at the position of the ejector pin 4 corresponding to the lock buckle mounting portion 32, so that the automobile fuel tank support product 3 is inclined after demolding, the side of the lock buckle mounting portion 32 of the automobile fuel tank support product 3 is lifted, the automobile fuel tank support product 3 is disconnected from most of the contact surface of the ejector pin 4, the possibility of scratching and deformation of the automobile fuel tank support product 3 due to adhesion of the automobile fuel tank support product 3 to the ejector pin 4 when the robot takes the product is reduced, and the production yield and mold maintenance cycle are improved.

[0042] If the multi-axis robot is used to hold the automobile fuel tank support product 3 and then make the automobile fuel tank support product 3 inclined, the performance requirement of the robot for taking the product is high, the production cost of the product is increased, and the application makes the automobile fuel tank support product 3 inclined before contacting the robot, reduces the performance requirement of the robot, and only needs to have the functions of simple clamping and linear movement, which is economical and suitable for large-scale automatic production.

[0043] The core plate 21 is provided with through holes corresponding to the ejector pins 4, and the top of the ejector pin 4 is flush with the top opening of the through hole in the closed mold state. The movement of the ejector pin 4 is a prior art, and thus will not be described in detail here.

[0044] As shown in Figure 8 , the outer wall of the ejector pin 4 corresponding to the lock buckle mounting portion 32 is provided with a slot 41, the top wall of the slot 41 is integrally formed with a vertical pressing block 42, and the vertical pressing block 42 and the slot 41 form a gap 43 for inserting the end of the horizontal rod 6. The side of the vertical pressing block 42 close to the mounting box 5 is an inclined surface for guiding the L-shaped pressing rod 74 to contact the vertical pressing block 42. After the horizontal rod 6 is inserted into the position between the lock buckle mounting portion 32 and the core plate 21, the horizontal rod 6 is inserted into the slot 41, and the horizontal rod 6 is inserted into the gap 43 when it moves upward.

[0045] As shown in Figure 4 and Figure 7 , the push mechanism 7 includes a fixed shaft 71 fixed to the end of the horizontal rod 6, a first sleeve 72 and a second sleeve 73 rotatably sleeved on the fixed shaft 71, an L-shaped pressing rod 74 and a first swing rod 75 fixedly connected on the first sleeve 72 and capable of being pressed downward by the vertical pressing block 42, an L-shaped ejector rod 76 and a third swing rod 77 fixedly connected on the second sleeve 73 and used for lifting the product, the first swing rod 75 and the third swing rod 77 are connected through a connecting assembly, and when the L-shaped pressing rod 74 is pressed, the L-shaped ejector rod 76 is synchronously and reversely rotated to lift the lock buckle mounting portion 32.

[0046] After the horizontal rod 6 moves up, the vertical pressing block 42 presses the long edge segment of the L-shaped pressing rod 74, the swing of the L-shaped pressing rod 74 is transmitted through the first sleeve 72, the first swing rod 75, the connecting assembly, the third swing rod 77 and the second sleeve 73, drives the L-shaped top rod 76 to synchronously and reversely rotate, and lifts the lock buckle mounting portion 32, thereby facilitating the taking of the automobile oiling base product 3.

[0047] As shown in Figure 4 and Figure 7 , the connecting assembly comprises an outer sleeve 78 fixed with the horizontal rod 6, a limiting inner tube 79 slidably connected in the outer sleeve 78, and the outer sleeve 78 and the limiting inner tube 79 are connected through a spring; the first swing rod 75 is hingedly connected with a second swing rod 710 at the end thereof, and the third swing rod 77 is hingedly connected with a fourth swing rod 711 at the end thereof; two strip-shaped grooves 712 communicating inside and outside and oppositely arranged are formed in the outer wall of the outer sleeve 78, and a short shaft 713 is slidably connected in each strip-shaped groove 712, one end of the short shaft 713 is fixed with the limiting inner tube 79, and the other end extends out of the strip-shaped sliding groove 92 and is hingedly connected with the adjacent second swing rod 710 or fourth swing rod 711; the rotation directions of the second swing rod 710 and the fourth swing rod 711 are opposite, so that the rotation directions of the L-shaped pressing rod 74 and the L-shaped top rod 76 are opposite.

[0048] The movable mold plate 1 is provided with a driving assembly 8 for driving the horizontal rod 6 to extend between the automobile oiling base product 3 and the core plate 21 after the mold is opened.

[0049] As shown in Figure 5 and Figure 6 , the driving assembly 8 comprises a driving rack 81 connected with the movable mold plate 1, the driving rack 81 is connected with a driven rack 86 through an acceleration gear set matched therewith, the driven rack 86 is slidably connected with the groove wall of the mounting box 5 through a sliding rail, the driven rack 86 is fixed with a connecting seat 87 at the end thereof, and the horizontal rod 6 penetrates through the connecting seat 87 and can slide up and down relative to the connecting seat 87.

[0050] As shown in Figure 5 and Figure 6 , the acceleration gear set comprises a transmission shaft 82, the transmission shaft 82 is fixed at both ends thereof with the inner cavity groove wall of the mounting box 5, the transmission shaft 82 is externally nested with a driving gear 83 fixed coaxially with the transmission shaft 82, the driving gear 83 is engaged with the driving rack 81, the transmission shaft 82 is further externally nested with a follower gear 84 fixed coaxially with the transmission shaft 82, an output shaft is arranged above the transmission shaft 82, both ends of the output shaft are fixed with the inner cavity groove wall of the mounting box 5, the output shaft is externally nested with a driven gear 85 fixed coaxially with the output shaft, the driven gear 85 is engaged with the follower gear 84, and the driven gear 85 is engaged with the driven rack 86.

[0051] As shown in Figure 5 and Figure 6As shown, the inner cavity of the mounting box 5 is further fixed with a mounting plate 88, the mounting plate 88 is provided with a guide groove 89 formed by a horizontal section and an inclined section, a connecting shaft 810 is penetrated in the guide groove 89, a roller is coaxially nested on the connecting shaft 810 and is in sliding connection with the guide groove 89, the connecting shaft 810 is penetrated out of the mounting plate 88 and is fixed with the cross rod 6; when the connecting seat 87 drives the horizontal movement of the cross rod 6, the connecting shaft 810 slides along the horizontal section of the guide groove 89, when the connecting shaft 810 moves to the inclined section of the guide groove 89, the cross rod 6 is vertically displaced relative to the connecting seat 87 under the guidance of the connecting shaft 810.

[0052] The horizontal section and the inclined section are smoothly transitioned to avoid the connecting shaft 810 being stuck, a reinforcing rod 811 is provided beside the cross rod 6, the cross rod 6 and the reinforcing rod 811 are fixedly connected through a connecting plate 812, the distance between the cross rod 6 and the reinforcing rod 811 is greater than the diameter of the ejector pin 4; the connecting plate 812 and the outer wall of the connecting seat 87 are in sliding connection through vertical slide rails, the reinforcing rod 811 and the cross rod 6 and the inner wall of the connecting seat 87 are in sliding connection through vertical slide rails, which makes the connecting seat 87 drive the reinforcing rod 811 and the cross rod 6 to move with the connecting seat 87 when the connecting seat 87 moves in the horizontal direction, and the connecting seat 87 does not affect the vertical sliding of the reinforcing rod 811 and the cross rod 6.

[0053] The movable mold plate 1 is provided with a time delay mechanism 9.

[0054] The time delay mechanism 9 includes a long rod 91 fixed with the outer wall of the movable mold plate 1, a vertical strip-shaped sliding groove 92 is penetrated in the long rod 91, a moving block 93 is in sliding connection in the strip-shaped sliding groove 92, the moving block 93 is fixed with a support 94 at one end extending out of the long rod 91, and the support 94 is fixed with the driving rack 81 away from the sliding block.

[0055] By arranging the long rod 91 and the moving block 93, the relative displacement between the movable mold plate 1 and the driving rack 81 is generated in a predetermined stroke, which drives the synchronous movement of the driving rack 81, in the application, when the ejector pin 4 lifts the automobile fuel tank base product 3, the long rod 91 starts to drive the synchronous movement of the moving block 93, which avoids the influence of the cross rod 6 on the ejector pin 4 and the automobile fuel tank base product 3, by arranging the support 94, in the initial state, the driving gear 83 and the end of the cross rod 6 are located outside the fixed mold plate 2 and the movable mold plate 1, which does not affect the mold closing and mold opening.

[0056] An automobile fuel tank base forming method, including the following steps:

[0057] Step S1: mold closing injection: driving the movable mold plate 1 to close with the fixed mold plate 2, so that the cavity plate and the core plate 21 jointly form a forming cavity, and injecting molten plastic into the forming cavity to form the automobile fuel tank base product 3;

[0058] Step S2: opening the mold and ejecting the automobile fuel tank product 3: driving the movable mold plate 1 and the fixed mold plate 2 apart to open the mold, and then driving the plurality of ejector pins 4 to move upward, so that the automobile fuel tank product 3 is separated from the core plate 21;

[0059] Step S3: adjusting the posture of the automobile fuel tank product 3: inserting the cross rod 6 into the position of the insertion slot 41 of the lock buckle mounting portion 32 corresponding to the ejector pin 4 and moving upward, so that the automobile fuel tank product 3 rotates around the hinge mounting portion 31 area and assumes an inclined posture;

[0060] Step S4: taking out the automobile fuel tank product 3 in an inclined posture.

[0061] In use, after the automobile fuel tank product 3 is formed, the movable mold plate 1 and the fixed mold plate 2 are driven apart to open the mold, and in the process of opening the mold, the movable mold plate 1 moves the plurality of rows of positions on the fixed mold plate 2 through the inclined guide columns, so that the automobile fuel tank product 3 is exposed, and then the plurality of ejector pins 4 are driven to move upward, so that the automobile fuel tank product 3 is separated from the core plate 21;

[0062] When the movable mold plate 1 moves upward, the long rod 91 fixed to the movable mold plate 1 also moves upward, and when the automobile fuel tank product 3 is separated from the core plate 21, the long rod 91 moves to the position where the moving block 93 abuts against the bottom of the strip-shaped sliding groove 92, and the movable mold plate 1 continues to move upward, driving the bracket 94 and the driving rack 81 to move upward;

[0063] The upward movement of the driving rack 81 drives the driving gear 83 meshing with the driving rack 81 to rotate, and the rotation of the driving gear 83 drives the transmission shaft 82 and the driven gear 84 coaxially fixed to the driving gear 83 to rotate, and the rotation of the driven gear 84 drives the driven gear 85 meshing with the driven gear 84 to rotate, and the rotation of the driven gear 85 drives the driven rack 86 meshing with the driven gear 85 to move, and the driven rack 86 is guided and limited by the sliding rail, and the movement of the driven rack 86 drives the connecting seat 87 fixed to the driven rack 86, as well as the cross rod 6 and the reinforcing rod 811 on the connecting seat 87 to move;

[0064] The end of the cross rod 6 is inserted into the insertion slot 41 provided on the outer wall of the lock buckle mounting portion 32 corresponding to the ejector pin 4, and the end of the cross rod 6 is located between the automobile fuel tank product 3 and the core plate 21;

[0065] When the connecting shaft 810 moves in the horizontal section of the guide groove 89, the crossbar 6 only moves horizontally. When the connecting shaft 810 moves to the inclined section, the crossbar 6 and the reinforcing rod 811 slide with the connecting seat 87 through the slide rail, the crossbar 6 and the reinforcing rod 811 move upwards, the crossbar 6 enters the gap 43, the vertical pressing block 42 presses the L-shaped pressing rod 74 downwards, the rotation of the L-shaped pressing rod 74 drives the first sleeve 72 fixed with the L-shaped pressing rod 74 to rotate, the rotation of the first sleeve 72 drives the first swing rod 75 fixed with the first sleeve 72 to rotate, the rotation of the first swing rod 75 drives the second swing rod 710 hingedly connected with the first swing rod 75 to rotate, the second swing rod 710 drives the short shaft 713 hingedly connected therewith to move, the movement of the short shaft 713 drives the limiting inner tube 79 to move in the outer sleeve 78, the spring is stretched, the movement of the limiting inner tube 79 also drives the other short shaft 713 to move, thereby driving the fourth swing rod 711 hingedly connected therewith to rotate, the rotation of the fourth swing rod 711 drives the third swing rod 77 to rotate, the rotation of the third swing rod 77 drives the second sleeve 73 fixed with the third swing rod 77 to rotate, the rotation of the second sleeve 73 drives the L-shaped ejector rod 76 fixed with the second sleeve 73 to rotate;

[0066] The long side segment of the L-shaped ejector rod 76 rotates to lift the locking buckle mounting portion 32 of the automobile oil filling base product 3, so that the automobile oil filling base product 3 rotates around the hinge mounting portion 31 area, thereby presenting an inclined state. The mechanical hand grasps and moves out the automobile oil filling base product 3 in the inclined state. When the product needs to be used again, the movable mold plate 1 moves downwards, the end of the crossbar 6 returns to the initial position, and is located outside the fixed mold plate 2.

[0067] Obviously, those skilled in the art can make various modifications and variations to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application belong to the scope of the claims of the present application and their equivalent technologies, the present application also intends to include these modifications and variations.

Claims

1. A car refueling base mold, comprising a movable template (1) and a fixed template (2), wherein a cavity plate is mounted on the movable template (1), and a core plate (21) adapted to the cavity plate is mounted on the fixed template (2), wherein a gap (43) between the cavity plate and the core plate (21) forms a molding cavity for a car refueling base product (3) when the mold is closed, and the car refueling base product (3) has a hinge mounting part (31) and a locking mounting part (32), characterized in that: Several vertical pins (4) are slidably connected on the fixed template (2); The outer wall of the fixed template (2) is fixed with a hollow mounting box (5). A crossbar (6) is slidably connected to the mounting box (5). After the mold is opened and the ejector pin (4) moves up to complete the ejection and demolding of the car fuel base product (3), the end of the crossbar (6) moves to one of the ejector pins (4) corresponding to the locking mounting part (32) and is located between the core plate (21) and the car fuel base product (3). A pushing mechanism (7) is provided at the end of the crossbar (6), which causes the car refueling base product (3) to rotate around its hinge mounting part (31), thereby tilting the car refueling base product (3); A slot (41) is provided on the outer wall of the pin (4) corresponding to the locking mounting part (32). A vertical pressure block (42) is integrally formed on the top wall of the slot (41). A gap (43) is formed between the vertical pressure block (42) and the slot (41) for inserting the end of the crossbar (6). The vertical pressure block (42) has an inclined surface on the side near the mounting box (5); The pushing mechanism (7) includes a fixed shaft (71) fixed to the end of the crossbar (6). A first sleeve (72) and a second sleeve (73) are rotatably sleeved on the fixed shaft (71). An L-shaped pressure rod (74) that can be pressed down by the vertical pressure block (42) and a first swing rod (75) are fixedly connected on the first sleeve (72). An L-shaped top rod (76) for lifting the product and a third swing rod (77) are fixedly connected on the second sleeve (73). The first rocker arm (75) and the third rocker arm (77) are linked by a connecting component. When the L-shaped pressure rod (74) is pressed down, the L-shaped top rod (76) rotates in the opposite direction synchronously, lifting the locking mounting part (32). The connecting assembly includes an outer tube (78) fixed to the crossbar (6), a limiting inner tube (79) slidably connected inside the outer tube (78), and the outer tube (78) and the limiting inner tube (79) are connected by a spring; The first pendulum (75) is hinged to the end of the second pendulum (710), and the third pendulum (77) is hinged to the end of the fourth pendulum (711). The outer wall of the outer sleeve (78) has two oppositely arranged and connected strip grooves (712). Each strip groove (712) is slidably connected to a short shaft (713). One end of the short shaft (713) is fixed to the limiting inner tube (79), and the other end extends out of the strip groove (92) and is hinged to the adjacent second swing rod (710) or fourth swing rod (711). The second rocker arm (710) and the fourth rocker arm (711) rotate in opposite directions, thereby causing the L-shaped pressure rod (74) to rotate in opposite directions to the L-shaped top rod (76).

2. The automobile refueling base mold as described in claim 1, characterized in that, The moving template (1) is provided with a drive crossbar (6) that extends into the car refueling base product (3) and the core plate (21) after the mold is opened.

3. The automobile refueling base mold as described in claim 2, characterized in that, The drive assembly (8) includes an active rack (81) connected to the moving template (1). The active rack (81) is connected to a driven rack (86) through a gear set that cooperates with it. The driven rack (86) is slidably connected to the groove wall of the mounting box (5) through a slide rail. A connecting seat (87) is fixed at the end of the driven rack (86). The crossbar (6) passes through the connecting seat (87) and can slide up and down relative to the connecting seat (87).

4. A car refueling base mold as described in claim 3, characterized in that, The inner cavity of the mounting box (5) is also fixed with a mounting plate (88). The mounting plate (88) is provided with a guide groove (89) consisting of a horizontal section and an inclined section. A connecting shaft (810) passes through the guide groove (89). A roller that is slidably connected to the guide groove (89) is coaxially nested on the connecting shaft (810). The connecting shaft (810) passes through the mounting plate (88) and is fixed to the crossbar (6). When the connecting seat (87) drives the crossbar (6) to move horizontally, the connecting shaft (810) slides along the horizontal section of the guide groove (89). When the connecting shaft (810) moves to the inclined section of the guide groove (89), the crossbar (6) generates a vertical displacement relative to the connecting seat (87) under the guidance of the connecting shaft (810).

5. A car refueling base mold as described in claim 4, characterized in that, The moving template (1) is provided with a delay mechanism (9).

6. A car refueling base mold as described in claim 5, characterized in that, The delay mechanism (9) includes a long rod (91) fixed to the outer wall of the moving template (1). A vertical strip groove (92) runs through the long rod (91). A moving block (93) is slidably connected in the strip groove (92). A bracket (94) is fixed to one end of the moving block (93) extending out of the long rod (91). The end of the bracket (94) away from the slider is fixed to the active rack (81).

7. A molding method for a car refueling base mold as described in any one of claims 1-6, characterized in that, Includes the following steps: Step S1 Mold closing injection: Drive the moving template (1) and the fixed template (2) to close the mold, so that the cavity plate and the core plate (21) together form a molding cavity, and inject molten plastic into it to form the car refueling base product (3). Step S2: Mold opening and ejection of the car refueling base product (3): Drive the moving template (1) to separate from the fixed template (2) to open the mold, and then drive several ejector pins (4) to move upward, so that the car refueling base product (3) separates from the core plate (21); Step S3: Adjusting the posture of the car refueling base product (3): Insert the crossbar (6) into the slot (41) of the corresponding pin (4) of the locking mounting part (32) and move it upward, so that the car refueling base product (3) rotates around its hinge mounting part (31) area and presents a tilted posture. Step S4: Remove the tilted car refueling base product (3).

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