Storage battery lead pipe casting forming mold

Abstract

The utility model discloses a storage battery lead pipe casting forming die which comprises a machine frame, a fixed die fixedly connected to the machine frame, a heating assembly arranged inside the fixed die, a through hole penetrating through the upper end face and the lower end face and formed in the fixed die, and a fixed shaft fixedly connected to the edge of one end of the fixed die. The first parting block is movably connected to the fixing shaft and located on the upper portion of the fixed mold, and a plurality of casting groove positions are formed in the first parting block. The top of the second parting block is provided with a plurality of bosses, the bottom side of each boss is fixedly provided with an inverted-circular-truncated-cone-shaped first mold core, the sprue piece is connected to the fixed shaft and located above the first parting block and the second parting block, and the bottom of the sprue piece is provided with grooves matched with the bosses; the second mold core is slidably connected into the through hole, a conical surface is annularly arranged at the top of the outer side wall of the second mold core, the top end of the second mold core is matched with the bottom end of the first mold core in an abutting mode, a product casting cavity is formed among the first parting block, the second parting block, the first mold core and the second mold core, and the device is efficient in production, convenient to use and capable of being used and popularized.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of battery parts production equipment, and specifically relates to a battery lead pipe casting forming die. BACKGROUND

[0002] Lead parts, especially lead pipes used as battery terminals, have an important role in batteries, are the end points connected with power facilities, often bear large current intensity in use, are not corroded when outputting maximum current, are safe and reliable, and also need to ensure that lead liquid does not enter the battery interior during battery assembly welding, which determines the particularity of the structure of the lead pipe, especially the lead pipe used for large batteries. At present, the internal cavity structure of the lead pipe is the superposition of two conical bodies, and the particularity of the structure determines the shape of the die core, that is, the superposition of two conical bodies. Since the problem of bubbles in the die-cast lead pipe and the complexity of the cold punching die cannot be solved at present, the product with the structure is prone to manual gravity casting.

[0003] However, the particularity of the structure causes shrinkage of the joint part of the cast product, and after the product is taken out after casting, the small cover at the top of the lead pipe often needs to be knocked out and preheated with a copper rod-like tool, the whole process is low in production efficiency, and most importantly, the shrinkage of the joint part often causes cracks in the product, leading to acid corrosion of the terminal and affecting the service life of the battery. Therefore, it is very important to solve the shrinkage of the lead pipe and the low production efficiency.

[0004] Therefore, how to provide a battery lead pipe casting forming die is a problem that those skilled in the art need to solve. UTILITY MODEL CONTENTS

[0005] Therefore, the utility model provides a battery lead pipe casting forming die, which does not need to preheat the die parts and does not need to take out the die parts twice in the production process, saves time and effort, and is high in production efficiency.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme: a battery lead pipe casting forming die, comprising:

[0007] A rack is fixedly connected with a fixed die, a heating assembly is arranged in the fixed die, a through hole is arranged in the upper and lower end faces of the fixed die, and a fixed shaft is fixedly connected to the edge of one end of the fixed die;

[0008] A first parting block is a split member, is movably connected to the fixed shaft and located at the upper part of the fixed die, and a plurality of casting grooves are arranged on the first parting block;

[0009] Second split block, the top of the second split block is provided with a plurality of bosses, the bottom side of the boss is fixed with a first core of inverted round table shape, and the second split block is closed on the first split block;

[0010] A sprue is connected on the fixed shaft and above the first split block and the second split block, and the bottom of the sprue is provided with a groove matched with the boss;

[0011] A second core is slidably connected in the through hole, the outer side wall of the second core is provided with a tapered surface at the top, and the top end of the second core is abutted and matched with the bottom end of the first core, and the first split block, the second split block, the first core and the second core form a product casting cavity.

[0012] The device uses two different shaped cores to shape the inner wall surface of the lead pipe, the second core at the bottom can be directly separated from the product lead pipe during demolding, the product is preheated by the heating assembly on the fixed mold before casting, the inside of the casting cavity is full of material, and product defects are avoided, the device avoids the problem that the small cover at the top of the lead pipe is knocked out one by one and preheated again after the product is taken out after traditional casting, and the shrinkage crack of the joint part of the casting product is caused.

[0013] Preferably, a support table is fixed on the rack and corresponds to the bottom of the fixed mold, a plurality of limiting rods are threadedly connected to the two side ends of the support table, a limiting plate is fixedly connected to the bottom end of the limiting rod, a plurality of through holes for slidably connecting the second core are formed in the limiting plate, and the limiting rod is used for adjusting the distance between the limiting plate and the support table and the fixed mold.

[0014] The technical effect generated thereby is that the support table is used for fixedly installing the fixed mold, in addition, the horizontal degree of the limiting plate and the distance between the limiting plate and the support table can be adjusted through the nut on the limiting rod, and the purpose of the limiting plate is to ensure the coaxiality of the second core and the first core and limit the stroke position of the second core.

[0015] Preferably, a telescopic driving mechanism for driving the second core to ascend and descend is connected to the rack, and the telescopic driving mechanism is located below the limiting plate.

[0016] The technical effect generated thereby is that the telescopic driving mechanism is used for controlling the ascending and descending of the second core, and then the subsequent demolding process is completed.

[0017] Preferably, the telescopic driving mechanism comprises a cylinder, a first supporting rod, a second supporting rod and a transition connecting rod, the cylinder is fixed on one side of the frame, the telescopic shaft of the cylinder is arranged vertically, one end of the first supporting rod is movably connected with the frame, the other end is slidably connected with the telescopic shaft of the cylinder, the two ends of the transition connecting rod are threadedly connected with hinge seats with pin holes, the hinge seats are movably connected with the middle parts of the first supporting rod and the second supporting rod on the corresponding side, the two ends of the second supporting rod are connected with a core plate, the bottom end of the second core is fixedly connected with the core plate, and the limiting plate is located above the core plate and limits the stroke position of the core plate and the second core.

[0018] The technical effect produced thereby is that the second core is actually fixed on the core plate by the nut, the limiting plate can limit the up-down stroke and position of the core plate, thereby limiting the highest position of the top end face of the second core, which avoids the collision between the second core and the first core and guarantees the up-down abutting relationship between the second core and the first core during product casting. Specifically, the first supporting rod and the second supporting rod are driven by the cylinder to complete the up-down lifting of the core plate. It should be noted that the up-down end hinge seats of the transition connecting rod can be adjusted in height, and the purpose is to adjust the positional relationship between the first supporting rod and the second supporting rod, thereby facilitating subsequent flexible use.

[0019] Preferably, the end of the telescopic shaft is fixed with a U-shaped groove, and the other end of the first supporting rod is movably located in the U-shaped groove.

[0020] The technical effect produced thereby is that in specific implementation, pin holes are formed in the two side groove walls of the U-shaped groove, the first supporting rod is located in the U-shaped groove and connected with the telescopic shaft by a pin rod. It should be noted that the pin rod and the pin rod are gap-fitted, which guarantees that the other end of the first supporting rod can be lifted under the driving of the cylinder, thereby realizing the lifting adjustment of the second supporting rod and the core plate. Another way is to directly press the other end of the first supporting rod by the U-shaped groove. It can also be understood that the other end of the first supporting rod is pressed downward by the U-shaped groove, thereby promoting the downward movement of the second supporting rod and the core plate. This way requires that the other end of the first supporting rod is slidably connected with the U-shaped groove, and compared with the above way, the direct abutting installation is more convenient.

[0021] Preferably, a return spring is arranged on the outer side wall of the second core, the top end of the return spring is fixedly connected with the core outer side wall, the bottom end of the return spring abuts against the limiting plate, and the return spring promotes the upward movement tendency of the second core.

[0022] The technical effect produced thereby is that the return spring can guarantee the upward tendency of the second core, thereby facilitating the upward resetting of the second core.

[0023] Preferably, the sprue member is a split type component and is rotatably connected with the fixed shaft, and a sprue support is connected with the sprue member.

[0024] The resulting technical effect is that the gate component is a split component, which facilitates mold removal, and the gate support is used to complete the processes of supporting the gate cup and assisting in the pouring process.

[0025] Preferably, multiple bosses are arranged at intervals, each boss is an arc-shaped boss, the center point of the arc-shaped boss is located at the axis of the positioning shaft, the cross-section of the arc-shaped boss is trapezoidal, and the groove on the gate component is an arc-shaped groove adapted to the curvature of the arc-shaped boss.

[0026] The resulting technical effect is that the arc curve of the arc boss is actually set with the positioning axis as the center point, which facilitates the assembly of the mold and also facilitates the assembly and positioning of the gate and the second parting block.

[0027] Preferably, the inverted conical surface on the first core and the positive conical surface on the second core are used to fit together to form the inner wall surface of the lead pipe.

[0028] The resulting technical effect is that the device uses the first core and the second core together as the core for casting products, so as to form the complex inner wall surface of the product. When the mold is opened, the second core and the first core do not interfere with the product, which makes it easy to remove the part.

[0029] Preferably, the inner wall of the casting groove is provided with a threaded surface with consistent concave and convex shapes resembling lead pipes.

[0030] The resulting technical effect is that the cavity inside the casting slot is actually the main body of the product casting cavity, and the inner wall of the casting slot is actually the inner wall of the casting cavity, which facilitates the formation of complex textures in the product. Attached Figure Description

[0031] Fig. 1 This is an overall structural diagram of a battery lead pipe casting mold according to the present invention;

[0032] Fig. 2 This is a top view of a battery lead pipe casting mold according to the present invention;

[0033] Fig. 3 This is a structural diagram of the gate component of a battery lead pipe casting mold according to the present invention;

[0034] Fig. 4 This is a top view of the first parting block of a battery lead pipe casting mold according to this utility model;

[0035] Fig. 5 This is a front view of the first parting block of a battery lead pipe casting mold according to this utility model;

[0036] Fig. 6 This is a structural diagram of the second parting block of a battery lead pipe casting mold according to this utility model;

[0037] Fig. 7 The utility model discloses a product drawing produced by a lead pipe casting forming die of a storage battery.

[0038] 1 frame, 2 fixed mould, 3 heating assembly, 4 fixed shaft, 5 first split block, 51 casting groove, 6 second split block, 7 boss, 8 first core, 9 sprue, 10 second core, 11 limit rod, 12 limit plate, 13 telescopic drive mechanism, 131 air cylinder, 132 first support rod, 133 second support rod, 134 transition connecting rod, 135 hinged seat, 14 core plate, 15 return spring, 16 guide sleeve, 17 groove, 18 sprue support, 19 U-shaped groove. DETAILED DESCRIPTION

[0039] The technical solutions in the embodiments of the utility model will be apparently and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0040] Refer to the drawings of the utility model Figs. 1 to 7 According to the utility model embodiment, a lead pipe casting forming die of a storage battery comprises:

[0041] The frame 1 is fixedly connected with the fixed mould 2, the inside of the fixed mould 2 is equipped with the heating assembly 3, actually, the blind hole is set up on the fixed mould, the heating assembly is the heating pipe, the heating pipe is arranged in the blind hole, the purpose is to preset the mould and the core, guarantees that the product casting cavity is full of material, the fixed mould 2 is equipped with the through hole that penetrates the upper and lower end faces, one end edge of the fixed mould 2 is fixedly connected with the fixed shaft 4;

[0042] The first split block 5 is the split type component, the first split block 5 is movably connected on the fixed shaft 4 and is located at the upper portion of the fixed mould 2, a plurality of casting groove positions 51 are equipped on the first split block 5, it can be understood that the casting groove position is symmetrically set on the split type component, when the first split block is combined, the casting groove position actually exhibits the cylindrical groove cavity;

[0043] The second split block 6 is equipped with a plurality of bosses 7 at the top, the bottom side of the boss 7 is fixed with the first core 8 of inverted round platform shape, the outer wall surface of the first core matches the inner wall surface shape of the product, the second split block 6 is combined on the first split block 5;

[0044] The sprue 9 is connected on the fixed shaft 4 and is located above the first split block 5 and the second split block 6, the bottom of the sprue 9 is equipped with the groove 17 matched with the boss 7;

[0045] The second core 10 is actually a long rod, but the top of the second core has a circular table structure. The second core is connected to the through hole in a sliding manner. In the specific implementation, the through hole has a guide sleeve 16 for matching the sliding of the second core 10. The outer side wall of the top of the second core 10 is provided with a conical surface, and the top end of the second core 10 is in abutting cooperation with the bottom end of the first core 8. The abutting cooperation needs to be flat and close to ensure the coaxiality of the first core and the second core. The first parting block 5, the second parting block 6, the first core 8 and the second core 10 form a product casting cavity.

[0046] In other embodiments, a support table is fixed on the rack 1 and corresponds to the bottom of the fixed mold 2. A plurality of limiting rods 11 are threadedly connected to the two side ends of the support table. The bottom end of the limiting rod 11 is fixedly connected to a limiting plate 12. A plurality of through holes for the sliding connection of the second core are formed in the limiting plate 12. The limiting rod 11 is used to adjust the distance between the limiting plate 12 and the support table and the fixed mold. It can be understood that the limiting rod is provided with a thread. The axial position of the limiting rod is adjusted by the nut on the limiting rod, and then the levelness or height of the limiting plate is adjusted to limit the axiality and stroke of the second core.

[0047] In other specific embodiments, a telescopic driving mechanism 13 for driving the second core 10 to move up and down is connected to the rack 1. The telescopic driving mechanism 13 is located below the limiting plate 12.

[0048] Specifically, the telescopic driving mechanism 13 includes a gas cylinder 131, a first supporting rod 132, a second supporting rod 133 and a transition connecting rod 134. The first supporting rod 132 and the second supporting rod 133 are actually V-shaped rods. The first supporting rod is arranged in an inverted manner, and the second supporting rod is arranged in a normal manner. The gas cylinder 131 is fixed to one side of the rack 1. The telescopic shaft of the gas cylinder 131 is arranged vertically. One end of the first supporting rod 132 is movably connected to the rack, and the other end is slidably connected to the telescopic shaft of the gas cylinder 131. The two ends of the transition connecting rod 134 are threadedly connected to a hinge seat 135 provided with a pin hole. The purpose is to adjust the axial length of the connection position of the transition connecting rod. The hinge seat 135 is movably connected to the middle parts of the first supporting rod 132 and the second supporting rod 133 on the corresponding side. The two ends of the second supporting rod 133 are connected to a core plate 14. The bottom end of the second core 10 is fixedly connected to the core plate 14. Specifically, a nut is connected to the bottom end of the second core for fixation. The limiting plate 12 is located above the core plate 14 and limits the stroke position of the core plate and the second core. It should be noted that the limiting plate is not fixedly connected to the second core plate.

[0049] In other embodiments, the end of the telescopic shaft is bolted with a U-shaped groove 19. The other end of the first supporting rod 132 is movably located in the U-shaped groove to ensure the smooth operation of the telescopic driving mechanism. In the specific implementation, a larger pin hole is formed in the two side walls of the U-shaped groove 19. The first supporting rod is connected to the telescopic shaft in a movable manner by using the clearance cooperation between the pin rod on the first supporting rod and the pin hole.

[0050] Or directly using U-shaped groove 19 abuts against the other end of the first support rod 132. Directly using U-shaped groove pressure resistance first support rod other end, also can be understood as, using U-shaped groove pressure resistance first support rod other end down, thereby prompting the second support rod and core plate down, this way needs the other end of the first support rod and U-shaped groove sliding connection, compared with the above-mentioned way, direct installation is more convenient.

[0051] In other embodiments, the second core 10 is provided with a reset spring 15 on the outer side wall, the top end of the reset spring 15 is fixedly connected with the outer side wall of the second core, and the bottom end of the reset spring 15 is abutted with the limiting plate 12. The reset spring 15 promotes the upward movement of the second core. It can be understood that when demolding, the telescopic driving mechanism controls the downward movement of the core plate and the second core, and the reset spring is compressed. When the mold is removed, the reset spring can reset the second core.

[0052] Specifically, the sprue 9 is a split type component and is rotatably connected to the fixed shaft 4. The sprue 9 is connected with a sprue support 18.

[0053] In other embodiments, a plurality of bosses 7 are arranged at intervals. The boss 7 is a circular arc boss, the center point of the circular arc boss is located on the axis of the positioning shaft, the cross section of the circular arc boss is trapezoidal, and the groove 17 on the sprue 9 is an arc-shaped groove matching the arc of the circular arc boss, facilitating the positioning and assembly of the sprue and the second split block.

[0054] In other embodiments, the inverted conical surface on the first core 8 and the positive conical surface on the second core 10 are used to cooperate to form the inner wall surface of the lead pipe.

[0055] Specifically, a thread consistent with the concave-convex of the lead pipe is arranged on the inner side wall of the casting groove 51.

[0056] The utility model discloses a lead pipe casting production, because the inverted circular platform core of four cavities is made into a whole second split block, can cast after the sprue, the first split block, the second split block are closed together, after the lead liquid solidification, open the sprue in proper order, take out the second split block, make the second core separate from the lead pipe by the cylinder lower pressure, then open the first split block, and the product demolding. The utility model can solve the following disadvantages:

[0057] Firstly, each component of the mold needs to be preheated before each casting;

[0058] Secondly, the components are taken one by one, and the temperature difference between the components and the main components of the mold is large;

[0059] Thirdly, shrinkage cracks are prone to occur at the joint between the two components.

[0060] The above-mentioned disadvantages are solved, the production efficiency is doubled, the contraction and cracks of the joint are eliminated, and the product quality is improved.

[0061] For the device and the use method disclosed by the embodiments, since they correspond to the method disclosed by the embodiments, the description is relatively simple, and the relevant part can be referred to the method part.

[0062] The above description of the disclosed embodiments enables a person skilled in the art to implement or use the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to these embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A mold for casting lead pipes for storage batteries, characterized in that, include: A frame (1) is fixedly connected to a fixed mold (2). A heating component (3) is provided inside the fixed mold (2). A through hole is provided on the fixed mold (2) through the upper and lower end faces. A fixed shaft (4) is fixedly connected to one end edge of the fixed mold (2). The first parting block (5) is a split component. The first parting block (5) is movably connected to the fixed shaft (4) and located on the upper part of the fixed mold (2). The first parting block (5) is provided with multiple casting slots (51). The second parting block (6) has multiple protrusions (7) on its top, and a first core (8) in the shape of an inverted frustum is fixed to the bottom side of the protrusions (7). The second parting block (6) is molded onto the first parting block (5). A sprue (9) is connected to the fixed shaft (4) and located above the first parting block (5) and the second parting block (6). The bottom of the sprue (9) is provided with a groove (17) for a mating boss (7). The second core (10) is slidably connected to the through hole. The top of the outer wall of the second core (10) is provided with a tapered surface and the top of the second core (10) abuts against the bottom of the first core (8). A product casting cavity is formed between the first parting block (5), the second parting block (6), the first core (8), and the second core (10).

2. The battery lead pipe casting mold according to claim 1, characterized in that, A support platform is fixed on the frame (1) and at the bottom of the fixed mold (2). Multiple limiting rods (11) are threaded to the two sides of the support platform. A limiting plate (12) is fixedly connected to the bottom of the limiting rod (11). Multiple through holes are provided on the limiting plate (12) for sliding connection of the second core. The limiting rod (11) is used to adjust the distance between the limiting plate (12) and the support platform and the fixed mold.

3. The battery lead pipe casting mold according to claim 2, characterized in that, The frame (1) is connected to a telescopic drive mechanism (13) that drives the second core (10) to move up and down. The telescopic drive mechanism (13) is located below the limiting plate (12).

4. The battery lead pipe casting mold according to claim 3, characterized in that, The telescopic drive mechanism (13) includes a cylinder (131), a first support rod (132), a second support rod (133), and a transition connecting rod (134). The cylinder (131) is fixed to one side of the frame (1). The telescopic shaft of the cylinder (131) is arranged vertically. One end of the first support rod (132) is movably connected to the frame, and the other end is slidably connected to the telescopic shaft of the cylinder (131). The two ends of the transition connecting rod (134) are threaded with hinge seats (135) with pin holes. The hinge seats (135) are movably connected to the middle of the first support rod (132) and the second support rod (133) on the corresponding side. The two ends of the second support rod (133) are connected with core plates (14). The bottom end of the second core (10) is fixedly connected to the core plate (14). The limiting plate (12) is located above the core plate (14) and limits the stroke position of the core plate and the second core.

5. A battery lead pipe casting mold according to claim 4, characterized in that, The end of the telescopic shaft is fixed with a U-shaped groove (19), and the other end of the first support rod (132) is movably located in the U-shaped groove.

6. The battery lead pipe casting mold according to claim 4, characterized in that, A reset spring (15) is provided on the outer wall of the second core (10). The top end of the reset spring (15) is fixed to the outer wall of the second core, and the bottom end of the reset spring (15) abuts against the limiting plate (12). The reset spring (15) causes the second core to have an upward tendency.

7. The battery lead pipe casting mold according to claim 1, characterized in that, The gate component (9) is a split component and is rotatably connected to the fixed shaft (4). A gate support (18) is connected to the gate component (9).

8. The battery lead pipe casting mold according to claim 1, characterized in that, The bosses (7) are arranged in multiple intervals. The bosses (7) are arc-shaped bosses. The center point of the arc-shaped bosses is located at the axis of the positioning shaft. The cross-section of the arc-shaped bosses is trapezoidal. The groove (17) on the gate component (9) is an arc-shaped groove adapted to the curvature of the arc-shaped bosses.

9. A battery lead pipe casting mold according to claim 1, characterized in that, The inverted conical surface on the first core (8) and the positive conical surface on the second core (10) are used to form the inner wall surface of the lead pipe.

10. A battery lead pipe casting mold according to claim 1, characterized in that, The inner wall of the casting groove (51) is provided with a threaded ring of lead pipe with consistent concave and convex shapes.

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