Sliding plate brick secondary material distribution mold and pressing equipment

Abstract

The utility model discloses a sliding plate brick secondary material distribution mold and pressing equipment in the technical field of sliding plate brick production. The sliding plate brick secondary material distribution mold comprises an upper mold part, a middle frame part and a lower mold part, the upper die part comprises a pressing die lifting mechanism and an upper die plate; the middle frame part comprises a lifting middle frame template and a middle frame mold cavity; the lower die part comprises a lower die mounting plate and a nested lower die core; the nested lower mold core comprises a core rod, an inner movable core cylinder, an outer movable core cylinder and a demolding core cylinder, and the inner movable core cylinder and the demolding core cylinder can be synchronously lifted relative to the outer movable core cylinder, so that a boss slope of the sliding plate brick is demolded preferentially in the demolding stage, and a transition slope at the edge of a boss of the sliding plate brick is demolded preferentially in the demolding stage; therefore, the situation that the defective rate of products is increased due to crack and damage caused by stress concentration is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of skateboard brick production, in particular to a skateboard brick secondary material distribution mold and pressing equipment. Background Art

[0002] As the refractory market becomes increasingly severe, there is a shortage of non-renewable raw materials worldwide, and high-quality, high-performance raw materials are in short supply and expensive. The whole skateboard brick uses uniform high-grade raw materials, and the cost pressure is getting greater and greater, making it difficult to maintain the good benefits and sustainable development of the enterprise.

[0003] As a functional refractory material for steelmaking, skateboard bricks are used in harsh conditions. Therefore, the service life and safety of skateboard bricks are important evaluation indicators. The molding process is a key process in the production of skateboard bricks. The density and uniformity of each part of the skateboard brick during the molding process have an important impact on the performance and use of the skateboard brick.

[0004] As attached Fig.14 The figure shows a schematic diagram of the longitudinal section of a skateboard brick. Considering the manufacturing cost, when designing the skateboard brick structure, an integrated high-quality refractory material is used for the inner wall of the hole of the boss and the top surface of the brick, while the rest of the parts are made of ordinary lining materials. Therefore, it is necessary to realize stamping manufacturing through a secondary distribution method, that is, the primary distribution is responsible for forming the inner part, and the secondary distribution is responsible for forming the surface part. Since the thickness of the boss is greater than the thickness of other positions on the brick surface, an annular transition slope is formed between the outer edge of the lower end of the boss and the lower surface of the inner part. During stamping manufacturing, the slope is stamped and formed in the first distribution stage, and the density at the transition slope is poorer than that of other inner parts. Therefore, during the entire skateboard brick molding and demolding stage, the transition slope becomes a vulnerable and weak area, which may cause collapse and damage if the force is not applied carelessly.

[0005] Relevant mold devices in the prior art, including, for example, Chinese patent No. CN202023255511.8, require manual secondary feeding during the feeding process, and cannot achieve fully automatic secondary feeding; after the skateboard bricks are formed and demolded, they are directly unloaded after ejection, that is, the entire lower surface of the brick plate is demolded at the same time. In this way, the transition slope around the boss becomes a stress concentration area, which poses a risk of collapse and damage, resulting in an increase in the defective rate of the product.

[0006] Based on this, the utility model designs a skateboard brick secondary distribution mold and pressing equipment to solve the above problems. Utility Model Content

[0007] In order to solve the above problems existing in the prior art, the utility model provides a secondary material distribution mold and pressing equipment for skateboard bricks.

[0008] The technical solution of the utility model is as follows:

[0009] A secondary distribution mold for skateboard tiles, comprising an upper mold component, a middle frame component and a lower mold component;

[0010] The upper die component includes a die lifting mechanism, and an upper die plate is arranged at the bottom of the die lifting mechanism;

[0011] The middle frame component includes a lifting middle frame template, and a middle frame mold cavity is arranged inside the lifting middle frame template;

[0012] The lower mold component includes a lower mold mounting plate and a nested lower mold core arranged above the lower mold mounting plate;

[0013] The upper mold plate, the middle frame mold cavity and the nested lower mold core constitute the mold cavity of the skateboard brick secondary distribution mold and the pressing equipment;

[0014] The nested lower mold core includes a core rod, an inner movable core barrel, an outer movable core barrel and a demoulding core barrel. The outer movable core barrel, the inner movable core barrel and the demoulding core barrel can be differentially lifted to realize automatic secondary material distribution; the inner movable core barrel and the demoulding core barrel can be synchronously lifted relative to the outer movable core barrel, so that the boss inclined surface can be demoulded first during the demoulding stage of the skateboard brick.

[0015] Preferably, a hydraulic cylinder assembly for driving the nested lower mold core is provided below the lower mold mounting plate, and the hydraulic cylinder assembly includes an inner core barrel top cylinder, an outer core rod top cylinder and a demoulding top cylinder;

[0016] The core rod and the middle frame component are synchronously linked to achieve lifting and lowering movements. The inner movable core barrel is driven by the inner core barrel top cylinder to achieve lifting and lowering movements. The outer movable core barrel is driven by the outer core rod top cylinder to achieve lifting and lowering movements. The bottom end of the demoulding core barrel is connected with a demoulding pad, and the bottom surface of the demoulding pad is fixedly connected with a demoulding top column. The lower end of the demoulding top column movably passes through the outer movable pad and abuts against the top surface of the lower mold mounting plate. The supporting height of the demoulding top column is greater than the thickness of the outer movable pad. A top column bushing that cooperates with the demoulding top column is embedded on the outer movable pad, and the top telescopic end of the demoulding top cylinder is connected to the bottom surface of the lower mold mounting plate.

[0017] Preferably, a core rod cross bar is fixedly installed in the middle of the core rod, and core rod hinge seats are respectively hinged at both ends of the core rod cross bar, and the core rod hinge seats are fixedly installed on the bottom surface of the lifting middle frame template;

[0018] A core barrel cross bar is fixedly installed in the middle of the inner movable core barrel, and core barrel hinge seats are respectively hinged at both ends of the core barrel cross bar, and demoulding linkage seats are respectively connected to the bottom of the two core barrel hinge seats, and the bottoms of the two demoulding linkage seats are connected to the telescopic ends of the top cylinders of the two inner core barrels, and the bottom surface of the demoulding linkage seat abuts against the top surface of the lower mold mounting plate;

[0019] The bottom end of the outer movable core barrel is connected with an outer movable pad, and the four corners of the outer movable pad are respectively connected with the top telescopic ends of four outer core rod top cylinders.

[0020] Preferably, an inner movable guide rod is fixedly installed at the center of the top surface of the lower mold mounting plate, the lower end of the inner movable core barrel is a solid column and passes through the outer movable pad, the lower end surface of the inner movable core barrel is embedded with a guide rod bushing and is movably connected to the inner movable guide rod through the guide rod bushing.

[0021] Preferably, both side walls of the inner movable core barrel, the outer movable core barrel and the demoulding core barrel are provided with cross bar clearance grooves, the core rod cross bar passes through the cross bar clearance grooves of the inner movable core barrel, the outer movable core barrel and the demoulding core barrel, and the core barrel cross bar passes through the cross bar clearance grooves of the outer movable core barrel and the demoulding core barrel.

[0022] Preferably, the hydraulic cylinder assembly includes a hydraulic base, the inner core barrel top cylinders are close to each other on both sides of the hydraulic base, the outer core rod top cylinders are arranged at the four corners of the hydraulic base, and the demoulding top cylinder is arranged in the middle of the hydraulic base.

[0023] Preferably, an inclined chamfer is provided along the upper end of the inner wall of the outer movable core barrel.

[0024] A skateboard brick pressing device comprises the skateboard brick secondary material distribution mold and the pressing device.

[0025] Compared with the prior art, the beneficial effects of the utility model are:

[0026] 1. The nested lower mold core of the skateboard brick secondary feeding mold and the pressing equipment of the utility model is composed of a core rod and a plurality of nested core tubes. The mold cavity shape can be changed through the cooperation of the middle frame component and the hydraulic cylinder assembly, so as to adapt to the requirements of different mold cavity shapes during the front and rear feeding in the production process of skateboard brick pressing, thereby realizing automated secondary feeding.

[0027] 2. The nested lower mold core of the skateboard brick secondary distribution mold and the pressing equipment of the utility model is composed of a core rod and a plurality of nested core barrels, wherein the inner movable core barrel and the demoulding core barrel can be synchronously lifted relative to the outer movable core barrel, so that during the demoulding stage of the skateboard brick, the transition slope of the boss edge can be demoulded first, thereby avoiding stress concentration and resulting in damage and failure of the product, resulting in an increase in the defective rate of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a schematic diagram of the front structure of the overall device of the utility model;

[0029] Figure 2 This is a front structural diagram of the middle frame component and the lower mold component of the utility model;

[0030] Figure 3 for Figure 2A schematic diagram of the structure of the middle frame components in FIG.

[0031] Figure 4 for Figure 2 Schematic diagram of the structure of the lower mold component;

[0032] Figure 5 for Figure 2 Schematic diagram of the hydraulic cylinder assembly structure;

[0033] Figure 6 This is a schematic diagram of the top view of the hydraulic cylinder assembly of the utility model;

[0034] Figure 7 It is a schematic diagram of the side structure of the middle frame component and the lower mold component;

[0035] Figure 8 for Figure 7 Schematic diagram of the structure at A in FIG.

[0036] Figure 9-13 This is a schematic diagram of the structure of steps one to five of the utility model;

[0037] Fig.14 This is a schematic diagram of the skateboard brick structure.

[0038] The reference numerals in the figure represent:

[0039] 100, upper mold component; 110, die lifting mechanism; 120, upper mold plate; 200, middle frame component; 210, lifting middle frame mold plate; 220, middle frame mold cavity; 300, lower mold component; 310, lower mold mounting plate; 311, inner movable guide rod; 312, guide rod bushing; 320, nested lower mold core; 321, core rod; 3211, core rod cross bar; 3212, core rod hinge seat; 322, inner movable core barrel; 322 1. Core barrel cross bar; 3222. Core barrel hinge seat; 3223. Demoulding linkage seat; 323. External movable core barrel; 3231. External movable pad; 324. Demoulding core barrel; 3241. Demoulding pad; 3242. Demoulding top column; 3243. Top column bushing; 325. Cross bar clearance groove; 330. Hydraulic cylinder assembly; 331. Inner core barrel top cylinder; 332. Outer core barrel top cylinder; 333. Demoulding top cylinder; 334. Hydraulic base. DETAILED DESCRIPTION

[0040] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0041] Embodiment 1:

[0042] See also Figure 1 and Figure 2 , the utility model provides a technical solution as follows:

[0043] A secondary distribution mold for skateboard tiles comprises an upper mold component 100, a middle frame component 200 and a lower mold component 300.

[0044] The upper mold component 100 includes a die lifting mechanism 110, and an upper mold plate 120 is arranged at the bottom of the die lifting mechanism 110; wherein the die lifting mechanism 110 is driven by a lifting actuator installed on an external frame, such as a hydraulic cylinder installed on the frame, and the hydraulic cylinder drives the die lifting mechanism 110 to move up and down, thereby driving the upper mold plate 120 to move up and down to realize the stamping action.

[0045] The middle frame component 200 includes a lifting middle frame template 210, and a middle frame mold cavity 220 is arranged inside the lifting middle frame template 210; wherein the lifting middle frame template 210 is driven by a lifting actuator installed on an external frame, such as a hydraulic cylinder installed on the frame, and the lifting middle frame template 210 is driven by the hydraulic cylinder to lift and lower the mold component 300 to adjust the mold cavity shape in the material laying stage and eject the brick plate in the demolding stage.

[0046] The lower mold component 300 includes a mounting plate 310, a nested lower mold core 320 and a hydraulic cylinder assembly 330; the lower mold mounting plate 310 is slidably installed up and down with the external frame during actual equipment installation, and has the freedom to move up and down; the upper mold plate 120, the middle frame mold cavity 220 and the nested lower mold core 320 constitute the mold cavity of the secondary distribution mold of the skateboard brick.

[0047] The nested lower mold core 320 includes a core rod 321, an inner movable core barrel 322, an outer movable core barrel 323 and a demoulding core barrel 324. The outer movable core barrel, the inner movable core barrel and the demoulding core barrel can be differentially lifted to realize automatic secondary material distribution. The above four components are movably sleeved layer by layer from the inside to the outside; and the upper end of the inner wall of the outer movable core barrel 323 is provided with a bevel chamfer, which corresponds to the transition bevel area forming the edge of the skateboard brick boss.

[0048] See also Figure 2 , Figure 5 and Figure 6 The hydraulic cylinder assembly 330 includes an inner core cylinder 331, an outer core rod cylinder 332 and a demoulding cylinder 333. The hydraulic cylinder assembly 330 also includes a hydraulic base 334. The inner core cylinder 331 is close to the two sides of the middle part of the hydraulic base 334, and the installation position can be adjusted forward and backward through the ear plate installation of the waist groove. The outer core rod cylinder 332 is arranged at the four corners of the hydraulic base 334, and the demoulding cylinder 333 is arranged in the middle of the hydraulic base 334.

[0049] like Figure 6 As shown, since a large number of hydraulic cylinders are required in this device, in order to facilitate installation and improve the working stability of the cylinder body and the frame of the device, the cylinder bodies of 5 of the hydraulic cylinders (i.e., four outer core cylinders 332 and one demolding cylinder 333) are made of a piece of plate, which is equivalent to 5 hydraulic cylinders connected as one. However, the telescopic working principle of the hydraulic cylinder is consistent with the working principle of a conventional hydraulic cylinder.

[0050] See also Figure 2 and Figure 3 The core rod 321 and the middle frame component 200 are synchronously linked to realize the lifting action. Specifically, a core rod cross bar 3211 is fixedly installed in the middle of the core rod 321, and core rod hinge seats 3212 are respectively hinged at both ends of the core rod cross bar 3211. The core rod hinge seats 3212 are fixedly installed on the bottom surface of the lifting middle frame template 210. When the middle frame component 200 moves up and down, the core rod 321 is driven to rise or fall synchronously through the core rod hinge seat 3212 and the core rod cross bar 3211.

[0051] See also Figure 2 and Figure 4 The inner movable core barrel 322 is driven by the inner core barrel top cylinder 331 to realize the lifting action. Specifically, a core barrel cross bar 3221 is fixedly installed in the middle of the inner movable core barrel 322, and core barrel hinge seats 3222 are hinged at both ends of the core barrel cross bar 3221. The bottoms of the two core barrel hinge seats 3222 are respectively connected to demoulding linkage seats 3223, and the bottoms of the two demoulding linkage seats 3223 are connected to the top telescopic ends of the two inner core barrel top cylinders 331, and the bottom surfaces of the demoulding linkage seats 3223 abut against the top surface of the lower mold mounting plate 310; the structure has different action modes in the material distribution stage and the demoulding stage; in the material distribution stage, the inner movable core barrel 322 is driven to rise and fall by the action transmission of the inner core barrel top cylinder 331 through the demoulding linkage seat 3223, the core barrel hinge seat 3222 and the core barrel cross bar 3221; and in the demoulding stage, it will be further described in detail below.

[0052] refer to Figure 2 and Figure 4 It can be known that the outer movable core barrel 323 is driven by the outer core rod top cylinder 332 to realize the lifting action. Specifically, the bottom end of the outer movable core barrel 323 is connected with the outer movable pad 3231, and the four corners of the outer movable pad 3231 are respectively connected to the top telescopic ends of the four outer core rod top cylinders 332. When working, the outer core rod top cylinder 332 telescopes to drive the outer movable pad 3231 to rise and fall, thereby driving the outer movable core barrel 323 to rise and fall.

[0053] See also Figure 2 , Figure 4 , Figure 7 and Figure 8The bottom end of the demoulding core cylinder 324 is connected to a demoulding pad 3241, and the bottom surface of the demoulding pad 3241 is fixedly connected to a demoulding top column 3242. The lower end of the demoulding top column 3242 is movable through the outer movable pad 3231 and then abuts against the top surface of the lower mold mounting plate 310. The supporting height of the demoulding top column 3242 is greater than the thickness of the outer movable pad 3231, that is, there is a certain height gap between the outer movable pad 3231 and the demoulding pad 3241 and the lower mold mounting plate 310, and the demoulding The backing plate 3241 is in contact with the outer movable backing plate 3231; a top column bushing 3243 that cooperates with the demoulding top column 3242 is embedded through the outer movable backing plate 3231, and the top telescopic end of the demoulding top cylinder 333 is connected to the bottom surface of the lower mold mounting plate 310; specifically, on the one hand: during the demoulding stage of the brick plate, the demoulding top cylinder 333 extends out to drive the lower mold mounting plate 310 to move upward, and due to the existence of the demoulding top column 3242, the upward movement is directly transmitted to the demoulding through the demoulding top column 3242 The mold pad 3241 drives the demoulding pad 3241 and the demoulding core barrel 324 to move upward synchronously. Since the demoulding top column 3242 and the outer movable pad 3231 are movably connected, and there is a certain height gap between the outer movable pad 3231 and the demoulding pad 3241 and the lower mold mounting plate 310, the extending action of the demoulding top cylinder 333 will not drive the outer movable pad 3231 to work. On the other hand, combined with the working principle of the aforementioned inner movable core barrel 322 in the demoulding stage, To explain, after the lower mold mounting plate 310 moves upward, it contacts the demoulding linkage seat 3223 mentioned above, thereby driving the demoulding linkage seat 3223 and the core barrel cross bar 3221 to move upward, and finally driving the inner movable core barrel 322 to move upward; through the above two actions, during the demoulding process, the inner movable core barrel 322 and the demoulding core barrel 324 can be synchronously lifted relative to the outer movable core barrel 323, so that the boss inclined surface can be demoulded first during the demoulding stage of the skateboard brick.

[0054] See also Figure 2 and Figure 4 and Figure 7 An inner movable guide rod 311 is fixedly installed at the center of the top surface of the lower mold mounting plate 310, and the inner movable guide rod 311 is movably sleeved in the inner movable core barrel 322. The lower end of the inner movable core barrel 322 is solid and has a hole groove. A guide rod bushing 312 is arranged in the hole groove, and the inner movable guide rod 311 is sleeved in the guide rod bushing 312; the inner movable core barrel 322 passes through the outer movable pad 3231 and the demoulding pad 3241. The inner movable guide rod 311 mainly serves as a limiting guide mechanism for the up and down movement of the mold to ensure that each mold component moves in a straight line during the lifting process.

[0055] See also Figure 2 and Figure 4In order to prevent the installation positions of the core rod cross bar 3211 and the core barrel cross bar 3221 from interfering with the positions of each core barrel, cross bar clearance grooves 325 are provided on both side walls of the inner movable core barrel 322, the outer movable core barrel 323 and the demoulding core barrel 324. The core rod cross bar 3211 passes through the cross bar clearance grooves 325 of the inner movable core barrel 322, the outer movable core barrel 323 and the demoulding core barrel 324, and the core barrel cross bar 3221 passes through the cross bar clearance grooves 325 of the outer movable core barrel 323 and the demoulding core barrel 324. The upper and lower widths of the cross bar clearance grooves 325 are not less than the upper and lower travel ranges of the core rod cross bar 3211 and the core barrel cross bar 3221.

[0056] Embodiment 2

[0057] A skateboard brick pressing device comprises the skateboard brick secondary distribution mold of embodiment one.

[0058] The working principle of the utility model can be found in Figures 9 to 13 Based on the mold device of the first embodiment, its working principle is as follows:

[0059] Step 1:

[0060] a. The lifting middle frame template 210 is lifted up under the driving action of the external actuator, and the lifting middle frame template 210 is lifted up

[0061] The core rod 321 is driven to be lifted synchronously to occupy the hole-turning area;

[0062] b. The outer core cylinder top cylinder 332 drives the outer movable pad 3231 to rise, thereby driving the outer movable core cylinder 323, the demoulding pad 3241 and the demoulding core cylinder 324 to rise, providing a cloth compensation amount for the slide block boss; at this time, the outer movable pad 3231 is in contact with the upper demoulding pad 3241 and the lower mold mounting plate 310 is left.

[0063] Out of the gap;

[0064] c. The inner core cylinder top cylinder 331 drives the core cylinder cross bar 3221 to rise, thereby driving the inner movable core cylinder 322 to rise, occupying part of the secondary material space in the side wall area of ​​the rotating hole;

[0065] d. The material distributing equipment automatically performs one distributing operation.

[0066] Step 2:

[0067] a. The lifting frame template 210 drives the core rod 321 to perform a secondary lift, leaving some space, that is, the secondary material space in the upper surface area of ​​the brick plate.

[0068] Step three:

[0069] a. The outer core cylinder 332 remains stationary, and the inner core cylinder 331 drives the core cross bar 3221 to descend, thereby

[0070] Drive the inner movable core barrel 322 downward;

[0071] b. At the same time, the material distribution equipment automatically performs secondary material distribution until the inner movable core cylinder 322 drops to the bottom and the secondary material distribution is completed.

[0072] Step 4:

[0073] a. The die lifting mechanism 110 drives the upper die plate 120 to descend to the surface of the raw material under the driving action of the actuator, and starts to pressurize and press;

[0074] b. The outer core cylinder top cylinder 332 returns to its original position under the pressure of the upper template 120, eliminating the compensation amount in step 1; c. The upper template 120 continues to be pressurized until the pressure required by the process is reached, and the pressing is completed.

[0075] Step 5:

[0076] a. After the pressing is completed, the upper template 120 is lifted, and the lifting middle frame template 210 drives the core rod 321 to descend, and the entire brick is ejected from the mold cavity;

[0077] b. The demoulding top cylinder 333 extends out, driving the core barrel cross bar 3221 and the demoulding pad 3241 to rise, thereby driving the inner movable core barrel 322 and the demoulding core barrel 324 to rise, and the outer movable core barrel 323 remains stationary. At this time, the outer movable pad 3231 is in contact with the lower mold mounting plate 310 below, and a gap is left with the demoulding pad 3241 above; the brick blank is first separated from the top of the outer movable core barrel 323 at the transition slope of the boss, so that the weak part is demoulded first;

[0078] After partial demoulding, the bricks are taken out by the external clamping mechanism, and all mechanisms are reset to carry out the next pressing cycle.

[0079] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A secondary distribution mold for skateboard tiles, comprising an upper mold component (100), a middle frame component (200) and a lower mold component (300), characterized in that: The upper mold component (100) comprises a die lifting mechanism (110), and an upper mold plate (120) is arranged at the bottom of the die lifting mechanism (110); The middle frame component (200) comprises a lifting middle frame template (210), and a middle frame mold cavity (220) is arranged inside the lifting middle frame template (210); The lower mold component (300) comprises a lower mold mounting plate (310) and a nested lower mold core (320) arranged above the lower mold mounting plate (310); The upper mold plate (120), the middle frame mold cavity (220) and the nested lower mold core (320) constitute the mold cavity of the skateboard tile secondary distribution mold; The nested lower mold core (320) comprises a core rod (321), an inner movable core barrel (322), an outer movable core barrel (323) and a demoulding core barrel (324), and the four components are movably sleeved layer by layer from the inside to the outside; an inclined chamfer is arranged along the upper end of the inner wall of the outer movable core barrel (323), and the inclined chamfer corresponds to the transition inclined surface area forming the edge of the slide block boss; the inner movable core barrel (322) and the demoulding core barrel (324) can be lifted synchronously relative to the outer movable core barrel (323).

2. The secondary distribution mold for skateboard tiles according to claim 1, characterized in that: A hydraulic cylinder assembly (330) for driving the nested lower mold core (320) is arranged below the lower mold mounting plate (310), and the hydraulic cylinder assembly (330) comprises an inner core cylinder top cylinder (331), an outer core cylinder top cylinder (332) and a demoulding top cylinder (333); The core rod (321) and the middle frame component (200) are synchronously linked to realize lifting and lowering movements. The inner movable core barrel (322) is driven by the inner core barrel top cylinder (331) to realize lifting and lowering movements. The outer movable core barrel (323) is driven by the outer core barrel top cylinder (332) to realize lifting and lowering movements. The bottom end of the demoulding core barrel (324) is connected to a demoulding pad (3241). The bottom surface of the demoulding pad (3241) is fixedly connected to a demoulding top column (3242). The lower end of the demoulding top column (3242) is movable through the outer movable pad (3231) and then abuts against the top surface of the lower mold mounting plate (310). The supporting height of the demoulding top column (3242) is greater than the thickness of the outer movable pad (3231). The top telescopic end of the demoulding top cylinder (333) is connected to the bottom surface of the lower mold mounting plate (310).

3. The secondary distribution mold for skateboard tiles according to claim 2, characterized in that: The outer movable backing plate (3231) is embedded with a top column bushing (3243) that cooperates with the demoulding top column (3242).

4. The secondary distribution mold for skateboard tiles according to claim 2, characterized in that: A core rod cross bar (3211) is fixedly installed in the middle of the core rod (321), and core rod hinge seats (3212) are respectively hinged at both ends of the core rod cross bar (3211), and the core rod hinge seats (3212) are fixedly installed on the bottom surface of the lifting middle frame template (210); A core barrel cross bar (3221) is fixedly installed in the middle of the inner movable core barrel (322), and core barrel hinge seats (3222) are respectively hinged at both ends of the core barrel cross bar (3221), and the bottoms of the two core barrel hinge seats (3222) are respectively connected to demoulding linkage seats (3223), and the bottoms of the two demoulding linkage seats (3223) are connected to the top telescopic ends of the two inner core barrel top cylinders (331), and the bottom surface of the demoulding linkage seat (3223) abuts against the top surface of the lower mold mounting plate (310); The bottom end of the outer movable core barrel (323) is connected to an outer movable pad (3231), and the four corners of the outer movable pad (3231) are respectively connected to the top telescopic ends of the four outer core barrel top cylinders (332).

5. The secondary distribution mold for skateboard tiles according to claim 4, characterized in that: An inner movable guide rod (311) is fixedly mounted at the center of the top surface of the lower mold mounting plate (310), and the inner movable guide rod (311) is movably sleeved inside the inner movable core barrel (322); the lower end of the inner movable core barrel (322) is solid and has a hole groove, in which a guide rod bushing (312) is arranged, and the inner movable guide rod (311) is sleeved inside the guide rod bushing (312); the inner movable core barrel (322) passes through the outer movable pad (3231) and the demoulding pad (3241); the inner movable guide rod (311) mainly serves as a limiting guide mechanism for the upward and downward movement of the mold, ensuring that each mold component moves in a straight line during the lifting process.

6. The secondary distribution mold for skateboard tiles according to claim 4, characterized in that: The side walls of the inner movable core barrel (322), the outer movable core barrel (323) and the demoulding core barrel (324) are all provided with cross bar clearance grooves (325); the core bar cross bar (3211) passes through the cross bar clearance grooves (325) of the inner movable core barrel (322), the outer movable core barrel (323) and the demoulding core barrel (324); and the core barrel cross bar (3221) passes through the cross bar clearance grooves (325) of the outer movable core barrel (323) and the demoulding core barrel (324).

7. The secondary distribution mold for skateboard tiles according to claim 3, characterized in that: The hydraulic cylinder assembly (330) comprises a hydraulic base (334), the inner core cylinder (331) is arranged close to both sides of the hydraulic base (334), the outer core cylinder (332) is arranged at the four corners of the hydraulic base (334), and the demoulding cylinder (333) is arranged in the middle of the hydraulic base (334).

8. The secondary distribution mold for skateboard tiles according to claim 6, characterized in that: An inclined chamfer is arranged along the upper end of the inner wall of the outer movable core barrel (323).

9. A skateboard brick pressing device, characterized in that: It comprises the skateboard tile secondary distribution mold as described in any one of claims 1-8.

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