CN219076510U - Wave plate forming device - Google Patents

Abstract

The utility model discloses a wave plate forming device, which comprises at least one upper forming roller and lower forming rollers, wherein the upper forming rollers are rotatably arranged, and the lower forming rollers are in one-to-one correspondence with the upper forming rollers and are rotatably arranged; a forming gap for a plate to pass through is formed between the upper forming roller and the corresponding lower forming roller, and the upper forming roller comprises an upper mandrel assembly, a plurality of upper forming assemblies, a plurality of upper spacers, a first fastening piece, a second fastening piece, a first end spacer and a second end spacer; the lower forming roller comprises a lower mandrel assembly, a plurality of lower forming assemblies, a plurality of lower spacers, a third fastening piece, a fourth fastening piece, a third end spacer and a fourth end spacer. The utility model adopts the combined upper forming roller and lower forming roller, can partially replace the upper forming roller or the lower forming roller when being damaged, and reduces the cost of replacing the upper forming roller and the lower forming roller.

Description

Wave plate forming device

Technical Field

The utility model relates to a wave plate forming device.

Background

At present, in the existing wave plate forming device, an integral structure is used for both the upper forming roller and the lower forming roller, namely, the upper forming roller is an integral body, and the lower forming roller is an integral body. For example, chinese patent publication No. CN111958997a discloses a method for processing a high quality PET wave plate, which is implemented by means of a wave forming device, and a first forming roller (corresponding to an upper forming roller) and a second forming roller (corresponding to a lower forming roller) used in the wave forming device adopt a unitary structure. The upper forming roller and the lower forming roller both adopt integral structures, and have the following defects: when the outer wall of the upper forming roller is partially damaged, the damaged upper forming roller needs to be disassembled to replace a new upper forming roller, and the damaged upper forming roller cannot be partially replaced or maintained; also, when the outer wall of the lower forming roll is partially damaged, the damaged lower forming roll needs to be detached to replace a new lower forming roll, and the damaged lower forming roll cannot be partially replaced or maintained, so that the cost for replacing the upper forming roll or the lower forming roll after being damaged is high.

Disclosure of Invention

The utility model aims to overcome the defects of the prior art and provides a wave plate forming device which adopts a combined upper forming roller and a lower forming roller, can be partially replaced when the upper forming roller or the lower forming roller is damaged, and reduces the cost of replacing the upper forming roller and the lower forming roller.

In order to solve the technical problems, the technical scheme of the utility model is as follows: the wave plate forming device comprises at least one upper forming roller which is rotatably arranged and a lower forming roller which is in one-to-one correspondence with the upper forming roller and is rotatably arranged;

a forming gap for a plate to pass through is arranged between the upper forming roller and the corresponding lower forming roller;

the upper forming roller comprises an upper mandrel assembly, a plurality of upper forming assemblies, a plurality of upper spacers, a first fastening piece, a second fastening piece, a first end spacer and a second end spacer;

the upper mandrel assembly is rotatably arranged;

the upper forming assemblies are sleeved on the upper mandrel assembly, the upper spacer is arranged between any two adjacent upper forming assemblies, and the upper spacer is sleeved on the upper mandrel assembly and abuts against the adjacent upper forming assemblies;

the first end spacer sleeve is sleeved on the upper mandrel assembly and abuts against the left end part of the leftmost upper forming assembly;

the second end spacer sleeve is sleeved on the upper mandrel assembly and abuts against the right end part of the rightmost upper forming assembly;

the first fastener is connected to the upper mandrel assembly and abuts against the left end of the first end spacer;

the second fastener is connected to the upper mandrel assembly and abuts against the right end part of the second end spacer;

the lower forming roller comprises a lower mandrel assembly, a plurality of lower forming assemblies, a plurality of lower spacers, a third fastening piece, a fourth fastening piece, a third end spacer and a fourth end spacer;

the lower mandrel assembly is rotatably arranged;

the lower forming assemblies are sleeved on the lower mandrel assembly, the lower spacer is arranged between any two adjacent lower forming assemblies, and the lower spacer is sleeved on the lower mandrel assembly and abuts against the adjacent lower forming assemblies;

the third end spacer sleeve is sleeved on the lower mandrel assembly and props against the left end part of the leftmost lower molding assembly;

the fourth end spacer sleeve is sleeved on the lower mandrel assembly and props against the right end part of the rightmost lower forming assembly;

the third fastener is connected to the lower mandrel assembly and abuts against the left end part of the third end spacer;

the fourth fastener is connected to the lower mandrel assembly and abuts against the right end portion of the fourth end spacer.

Further provided is a specific structure of the upper mandrel assembly and the lower mandrel assembly, the upper mandrel assembly comprising a first shaft body, a second shaft body and an upper sleeve; wherein, the liquid crystal display device comprises a liquid crystal display device,

the first shaft body is connected with the left end part of the upper sleeve;

the second shaft body is connected with the right end part of the upper sleeve;

the upper molding assembly, the upper spacer, the first end spacer and the second end spacer are all sleeved on the upper sleeve;

the first fastener is in threaded connection with the first shaft body;

the second fastener is in threaded connection with the second shaft body;

the lower mandrel assembly comprises a third shaft body, a fourth shaft body and a lower sleeve; wherein, the liquid crystal display device comprises a liquid crystal display device,

the third shaft body is connected with the left end part of the lower sleeve;

the fourth shaft body is connected with the right end part of the lower sleeve;

the lower molding assembly, the lower spacer, the third end spacer and the fourth end spacer are all sleeved on the lower sleeve;

the third fastener is in threaded connection with the third shaft body;

the fourth fastener is in threaded connection with the fourth shaft body.

Further, an upper cooling cavity is arranged in the upper sleeve;

a first medium channel communicated with the upper cooling cavity is arranged in the first shaft body;

a second medium channel communicated with the upper cooling cavity is arranged in the second shaft body;

a lower cooling cavity is arranged in the lower sleeve;

a third medium channel communicated with the lower cooling cavity is arranged in the third shaft body;

and a fourth medium channel communicated with the lower cooling cavity is arranged in the fourth shaft body.

Further, the upper spacer bush and two adjacent upper molding assemblies are surrounded to form a molding groove;

the lower spacers are in one-to-one correspondence with the upper spacers and are aligned with the corresponding upper spacers;

and the outer peripheral part of the lower spacer bush is provided with a forming part which protrudes outwards along the radial direction and is aligned with the corresponding forming groove.

Further provided is a specific structure of the upper molding assembly and the lower molding assembly, wherein the upper molding assemblies are in one-to-one correspondence with the lower molding assemblies, and the upper molding assemblies are aligned with the corresponding lower molding assemblies;

the upper molding assembly comprises an upper center steel sleeve and two upper end steel sleeves;

the upper central steel sleeve and the upper end steel sleeve are sleeved on the upper mandrel assembly;

the upper center steel sleeve is positioned between the two upper end steel sleeves, and the outer diameter of the upper center steel sleeve is smaller than that of the upper end steel sleeve;

the lower molding assembly comprises a lower center steel sleeve and two lower end steel sleeves;

the lower center steel sleeve and the lower end steel sleeve are sleeved on the lower mandrel assembly;

the lower center steel sleeve is positioned between the two lower end steel sleeves, and the outer diameter of the lower center steel sleeve is larger than that of the lower end steel sleeve.

Further, the wave plate forming device further comprises a frame, a driving device and gap adjusting devices which are in one-to-one correspondence with the upper forming rollers; wherein, the liquid crystal display device comprises a liquid crystal display device,

the gap adjusting device is connected to the frame;

an upper mandrel assembly in the upper forming roller is rotationally connected to the corresponding gap adjusting device;

a lower mandrel assembly in the lower forming roller is rotatably connected to the frame;

the upper forming roller is positioned above the corresponding lower forming roller;

the driving device is connected with the lower mandrel assembly and is used for driving the lower mandrel assembly to rotate so as to drive the whole lower forming roller to rotate.

The clearance adjusting device comprises a first sliding seat, a first stroke-adjustable cylinder, a second sliding seat and a second stroke-adjustable cylinder; wherein, the liquid crystal display device comprises a liquid crystal display device,

the first sliding seat and the second sliding seat are respectively and slidably connected to the frame;

one end of the upper mandrel assembly is rotatably connected to the first sliding seat;

the other end part of the upper mandrel assembly is rotationally connected to the second sliding seat;

the first stroke-adjustable air cylinder is connected to the frame and connected with the first sliding seat;

the second stroke-adjustable air cylinder is connected to the frame and connected with the second sliding seat.

Further provided is a specific structure of the driving device, wherein at least two lower forming rollers are arranged, and the at least two lower forming rollers are sequentially arranged along the moving direction of the plate;

the driving device comprises a power part, driving gears corresponding to the lower forming rollers one by one and at least one transmission gear;

the driving gear is connected to a lower mandrel assembly in the corresponding lower forming roller;

the transmission gears are arranged between any two adjacent driving gears, the two adjacent driving gears are meshed and transmitted through the transmission gears, and the transmission gears are rotationally connected to the frame;

the power component is connected to the frame and connected to the transmission gear and used for driving the transmission gear to rotate.

Further, the frame is also connected with a material receiving device for receiving the plate passing through the forming gap, and the material receiving device comprises at least two rollers which are rotatably connected to the frame and used for supporting the plate.

Further, the wave plate forming device further comprises at least two ground rails, the bottom of the frame is connected with a plurality of pulleys, and the frame is connected to the ground rails in a sliding mode through the pulleys.

After the technical scheme is adopted, the upper forming roller and the lower forming roller are of combined structures, and when the outer wall of the upper forming roller is damaged, only the upper forming assembly or the upper spacer bush corresponding to the damaged part is required to be detached for replacement; when the outer wall of the lower forming roller is damaged, only the lower forming assembly or the lower spacer bush corresponding to the damaged part is required to be disassembled for replacement, and the whole upper forming roller or the whole lower forming roller is not required to be replaced, so that the damage can be made up through partial replacement when the upper forming roller or the lower forming roller is damaged, and the cost for replacing the upper forming roller and the lower forming roller is reduced.

Drawings

FIG. 1 is a schematic view of a wave plate forming apparatus according to the present utility model;

FIG. 2 is a side view of the wave plate forming apparatus of the present utility model;

FIG. 3 is a schematic view of the structure of the upper and lower forming rolls of the present utility model;

FIG. 4 is a cross-sectional view of an upper and lower mold roll of the present utility model;

fig. 5 is a partial detail of fig. 4.

Detailed Description

In order that the utility model may be more readily understood, a more particular description of the utility model will be rendered by reference to specific embodiments that are illustrated in the appended drawings.

As shown in fig. 1 to 5, a wave plate forming device comprises at least one upper forming roller 100 rotatably arranged and a lower forming roller 200 rotatably arranged in one-to-one correspondence with the upper forming roller 100;

a forming gap 1 for the plate to pass through is arranged between the upper forming roller 100 and the corresponding lower forming roller 200;

wherein the upper forming roll 100 comprises an upper mandrel assembly 110, a plurality of upper forming assemblies 120, a plurality of upper spacers 2, a first fastener 3, a second fastener 4, a first end spacer 5, and a second end spacer 6;

the upper mandrel assembly 110 is rotatably arranged;

the upper forming assemblies 120 are sleeved on the upper mandrel assembly 110, the upper spacer bush 2 is arranged between any two adjacent upper forming assemblies 120, and the upper spacer bush 2 is sleeved on the upper mandrel assembly 110 and abuts against the adjacent upper forming assemblies 120;

the first end spacer 5 is sleeved on the upper mandrel assembly 110 and abuts against the left end part of the leftmost upper forming assembly 120;

the second end spacer 6 is sleeved on the upper mandrel assembly 110 and abuts against the right end part of the rightmost upper forming assembly 120;

the first fastener 3 is connected to the upper mandrel assembly 110 and abuts against the left end of the first end spacer 5;

the second fastener 4 is connected to the upper mandrel assembly 110 and abuts against the right end of the second end spacer 6; specifically, the first fastener 3 and the second fastener 4 are used to compress the first end spacer 5, the plurality of upper molding assemblies 120, the plurality of upper spacers 2, and the second end spacer 6 together;

wherein the lower forming roll 200 comprises a lower mandrel assembly 210, a plurality of lower forming assemblies 220, a plurality of lower spacers 7, a third fastener 8, a fourth fastener 9, a third end spacer 10, and a fourth end spacer 11;

the lower spindle assembly 210 is rotatably disposed;

the plurality of lower forming assemblies 220 are sleeved on the lower mandrel assembly 210, the lower spacer 7 is arranged between any adjacent lower forming assemblies 220, and the lower spacer 7 is sleeved on the lower mandrel assembly 210 and abuts against the adjacent lower forming assemblies 220;

the third end spacer 10 is sleeved on the lower mandrel assembly 210 and abuts against the left end part of the leftmost lower molding assembly 220;

the fourth end spacer 11 is sleeved on the lower mandrel assembly 210 and abuts against the right end part of the rightmost lower molding assembly 220;

the third fastener 8 is connected to the lower mandrel assembly 210 and abuts the left end of the third end spacer 10;

the fourth fastener 9 is connected to the lower mandrel assembly 210 and abuts against the right end of the fourth end spacer 11; specifically, the third fastener 8 and the fourth fastener 9 are used to compress the third end spacer 10, the plurality of lower molding assemblies 220, the plurality of lower spacers 7, and the fourth end spacer 11 together. In this embodiment, the upper forming roller 100 and the lower forming roller 200 are both in a combined structure, and when the outer wall of the upper forming roller 100 is damaged, only the upper forming assembly 120 or the upper spacer 2 corresponding to the damaged portion needs to be detached for replacement; when the outer wall of the lower forming roller 200 is damaged, only the lower forming assembly 220 or the lower spacer 7 corresponding to the damaged part is required to be disassembled for replacement, and the whole upper forming roller 100 or the whole lower forming roller 200 is not required to be replaced, and when the upper forming roller 100 or the lower forming roller 200 is damaged, the damage can be made up by partial replacement, so that the cost for replacing the upper forming roller 100 and the lower forming roller 200 is reduced. Wherein the first, second, third and fourth fasteners 3, 4, 8 and 9 each comprise at least one nut.

As shown in fig. 3 to 5, the upper mandrel assembly 110 may include a first shaft body 12, a second shaft body 13, and an upper sleeve 14; wherein, the liquid crystal display device comprises a liquid crystal display device,

the first shaft body 12 is connected with the left end part of the upper sleeve 14;

the second shaft body 13 is connected with the right end part of the upper sleeve 14;

the upper molding assembly 120, the upper spacer 2, the first end spacer 5 and the second end spacer 6 are all sleeved on the upper sleeve 14;

the first fastening piece 3 is connected to the first shaft body 12 in a threaded manner;

the second fastener 4 is in threaded connection with the second shaft body 13;

the lower spindle assembly 210 may include a third shaft body 15, a fourth shaft body 16, and a lower sleeve 17; wherein, the liquid crystal display device comprises a liquid crystal display device,

the third shaft body 15 is connected with the left end part of the lower sleeve 17;

the fourth shaft body 16 is connected with the right end part of the lower sleeve 17;

the lower molding assembly 220, the lower spacer 7, the third end spacer 10 and the fourth end spacer 11 are all sleeved on the lower sleeve 17;

the third fastening piece 8 is in threaded connection with the third shaft body 15;

the fourth fastener 9 is screwed on the fourth shaft body 16.

As shown in fig. 4 and 5, an upper cooling chamber 18 may be provided in the upper sleeve 14;

a first medium channel 19 communicated with the upper cooling cavity 18 is arranged in the first shaft body 12;

a second medium passage 20 communicating with the upper cooling chamber 18 is provided in the second shaft body 13, and a cooling medium can flow from the first medium passage 19 into the upper cooling chamber 18 and then be discharged from the second medium passage 20 to cool the upper forming roll 100;

a lower cooling chamber 21 may be provided in the lower sleeve 17;

a third medium channel 22 communicated with the lower cooling cavity 21 is arranged in the third shaft body 15;

the fourth shaft body 16 is provided with a fourth medium passage 23 communicating with the lower cooling chamber 21, and a cooling medium may flow from the third medium passage 22 into the lower cooling chamber 21 and then be discharged from the fourth medium passage 23 to cool the lower forming roll 200.

As shown in fig. 3 to 5, the upper spacer 2 and the adjacent two upper molding assemblies 120 are surrounded by a molding groove 24;

the lower spacers 7 are in one-to-one correspondence with the upper spacers 2 and are aligned with the corresponding upper spacers 2;

the outer peripheral portion of the lower spacer 7 is provided with a molding portion 25 protruding radially outward and aligned with the corresponding molding groove 24.

As shown in fig. 3 to 5, the upper molding assemblies 120 are in one-to-one correspondence with the lower molding assemblies 220, and the upper molding assemblies 120 are aligned with the corresponding lower molding assemblies 220;

the upper molding assembly 120 includes an upper center steel jacket 26 and two upper end steel jackets 27;

the upper center steel sleeve 26 and the upper end steel sleeve 27 are sleeved on the upper mandrel assembly 110; specifically, the upper center steel sleeve 26 and the upper end steel sleeve 27 are both sleeved on the upper sleeve 14 in the upper mandrel assembly 110;

the upper center steel sleeve 26 is positioned between the two upper end steel sleeves 27, and the outer diameter of the upper center steel sleeve 26 is smaller than the outer diameter of the upper end steel sleeves 27;

the lower molding assembly 220 includes a lower center steel sleeve 28 and two lower end steel sleeves 29;

the lower center steel sleeve 28 and the lower end steel sleeve 29 are sleeved on the lower mandrel assembly 210; specifically, the lower center steel sleeve 28 and the lower end steel sleeve 29 are both sleeved on the lower sleeve 17 in the lower mandrel assembly 210;

the lower center steel sleeve 28 is located between the two lower end steel sleeves 29, the outer diameter of the lower center steel sleeve 28 is larger than the outer diameter of the lower end steel sleeve 29, and the plate passing through the forming gap 1 can be pressed into a wave plate through the cooperation of the upper forming assembly 120 and the lower forming assembly 220 and the cooperation of the forming groove 24 and the forming part 25.

As shown in fig. 1 and 2, the wave plate forming device may further include a frame 30, a driving device, and a gap adjusting device corresponding to the upper forming roller 100 one by one; wherein, the liquid crystal display device comprises a liquid crystal display device,

the gap adjusting device is connected to the frame 30;

an upper mandrel assembly 110 in the upper forming roller 100 is rotatably connected to the corresponding gap adjusting device;

a lower spindle assembly 210 in the lower mold roll 200 is rotatably coupled to the frame 30;

the upper forming roll 100 is located above the corresponding lower forming roll 200;

the driving device is connected with the lower mandrel assembly 210 and is used for driving the lower mandrel assembly 210 to rotate so as to drive the whole lower forming roller 200 to rotate; in this embodiment, the gap adjusting device is used to adjust the position of the upper forming roller 100 so as to adjust the size of the forming gap 1.

As shown in fig. 1 and 2, the gap adjusting device is, for example, but not limited to, a structure including a first slide 31, a first adjustable stroke cylinder 32, a second slide 33 and a second adjustable stroke cylinder 34; wherein, the liquid crystal display device comprises a liquid crystal display device,

the first sliding seat 31 and the second sliding seat 33 are respectively connected to the frame 30 in a sliding manner;

an end of the upper spindle assembly 110 is rotatably connected to the first slider 31;

the other end of the upper core shaft assembly 110 is rotatably connected to the second slider 33;

the first stroke-adjustable cylinder 32 is connected to the frame 30 and connected to the first slide 31;

the second stroke-adjustable cylinder 34 is connected to the frame 30 and connected to the second slide 33; specifically, when the first adjustable stroke cylinder 32 and the second adjustable stroke cylinder 34 are both extended, the upper forming roller 100 moves toward the lower forming roller 200 to a position where the forming gap 1 is formed between the upper forming roller 100 and the corresponding lower forming roller 200; wherein the size of the forming gap 1 can be adjusted by adjusting the stroke of the first and second adjustable stroke cylinders 32, 34.

In this embodiment, the first shaft body 12 in the upper mandrel assembly 110 is rotatably connected to the first slide seat 31, the second base body in the upper mandrel assembly 110 is rotatably connected to the second slide seat 33, and specific structures of the first adjustable stroke cylinder 32 and the second adjustable stroke cylinder 34 are well known to those skilled in the art, which is not described in detail in this embodiment.

As shown in fig. 1 and 2, at least two lower forming rollers 200 are provided, and at least two lower forming rollers 200 are sequentially arranged along the moving direction of the plate material;

the driving means is, for example, but not limited to, a structure including a power member, driving gears 35 in one-to-one correspondence with the lower molding rolls 200, and at least one transmission gear 36;

the driving gears 35 are connected to the lower spindle assemblies 210 in the corresponding lower molding rolls 200;

the transmission gear 36 is arranged between any two adjacent driving gears 35, and any two adjacent driving gears 35 are meshed and transmitted through the transmission gear 36, and the transmission gear 36 is rotatably connected to the frame 30;

the power component is connected to the frame 30 and connected to the transmission gear 36 and is used for driving the transmission gear 36 to rotate, so as to drive all the driving gears 35 and the transmission gear 36 to rotate, and further drive all the lower forming rollers 200 to rotate; in this embodiment, the drive gear 35 is coupled to the third shaft body 15 of the lower spindle assembly 210.

As shown in fig. 1 and 2, the frame 30 may further be connected to a receiving device for receiving the sheet material passing through the forming gap 1, and the receiving device may include at least two rollers 37 rotatably connected to the frame 30 and for holding the sheet material.

As shown in fig. 1 and 2, the wave plate forming device may further include at least two ground rails 38, a plurality of pulleys 39 are connected to the bottom of the frame 30, and the frame 30 is slidably connected to the ground rails 38 through the pulleys 39. In this embodiment, the frame 30 has a left vertical plate 40 and a right vertical plate 41, the first sliding seat 31 is slidably connected to the left vertical plate 40 along a vertical direction, and the second sliding seat 33 is slidably connected to the right vertical plate 41 along a vertical direction; the transmission gear 36 is rotatably connected to the left vertical plate 40, the cylinder body of the first stroke-adjustable cylinder 32 is connected to the left vertical plate 40, and the cylinder body of the second stroke-adjustable cylinder 34 is connected to the right vertical plate 41.

In summary, the upper forming roller 100 and the lower forming roller 200 have a combined structure, and when the outer wall of the upper forming roller 100 is damaged, only the upper forming assembly 120 or the upper spacer 2 corresponding to the damaged portion needs to be disassembled for replacement; when the outer wall of the lower forming roller 200 is damaged, only the lower forming assembly 220 or the lower spacer 7 corresponding to the damaged part is required to be disassembled for replacement, and the whole upper forming roller 100 or the whole lower forming roller 200 is not required to be replaced, and when the upper forming roller 100 or the lower forming roller 200 is damaged, the damage can be made up by partial replacement, so that the cost for replacing the upper forming roller 100 and the lower forming roller 200 is reduced.

The technical problems, technical solutions and advantageous effects solved by the present utility model have been further described in detail in the above-described embodiments, and it should be understood that the above-described embodiments are only illustrative of the present utility model and are not intended to limit the present utility model, and any modifications, equivalent substitutions, improvements, etc. within the spirit and principle of the present utility model should be included in the scope of protection of the present utility model.

Claims (10)

1. The wave plate forming device is characterized by comprising at least one upper forming roller (100) which is rotatably arranged and a lower forming roller (200) which is in one-to-one correspondence with the upper forming roller (100) and is rotatably arranged;

a forming gap (1) for a plate to pass through is arranged between the upper forming roller (100) and the corresponding lower forming roller (200);

the upper forming roller (100) comprises an upper mandrel assembly (110), a plurality of upper forming assemblies (120), a plurality of upper spacers (2), a first fastening piece (3), a second fastening piece (4), a first end spacer (5) and a second end spacer (6);

the upper mandrel assembly (110) is rotatably arranged;

the upper forming assemblies (120) are sleeved on the upper mandrel assembly (110), the upper spacer bush (2) is arranged between any two adjacent upper forming assemblies (120), and the upper spacer bush (2) is sleeved on the upper mandrel assembly (110) and abuts against the adjacent upper forming assemblies (120);

the first end spacer (5) is sleeved on the upper mandrel assembly (110) and abuts against the left end part of the leftmost upper forming assembly (120);

the second end spacer (6) is sleeved on the upper mandrel assembly (110) and abuts against the right end part of the rightmost upper forming assembly (120);

the first fastener (3) is connected to the upper mandrel assembly (110) and abuts against the left end part of the first end spacer (5);

the second fastener (4) is connected to the upper mandrel assembly (110) and abuts against the right end part of the second end spacer (6);

the lower forming roller (200) comprises a lower mandrel assembly (210), a plurality of lower forming assemblies (220), a plurality of lower spacers (7), a third fastening piece (8), a fourth fastening piece (9), a third end spacer (10) and a fourth end spacer (11);

the lower mandrel assembly (210) is rotatably arranged;

the lower forming assemblies (220) are sleeved on the lower mandrel assembly (210), the lower spacer bush (7) is arranged between any two adjacent lower forming assemblies (220), and the lower spacer bush (7) is sleeved on the lower mandrel assembly (210) and abuts against the adjacent lower forming assemblies (220);

the third end spacer (10) is sleeved on the lower mandrel assembly (210) and abuts against the left end part of the leftmost lower forming assembly (220);

the fourth end spacer (11) is sleeved on the lower mandrel assembly (210) and abuts against the right end part of the rightmost lower forming assembly (220);

the third fastener (8) is connected to the lower mandrel assembly (210) and abuts against the left end part of the third end spacer (10);

the fourth fastener (9) is connected to the lower mandrel assembly (210) and abuts against the right end of the fourth end spacer (11).

2. The wave plate molding apparatus of claim 1, wherein,

the upper mandrel assembly (110) comprises a first mandrel body (12), a second mandrel body (13) and an upper sleeve (14); wherein, the liquid crystal display device comprises a liquid crystal display device,

the first shaft body (12) is connected with the left end part of the upper sleeve (14);

the second shaft body (13) is connected with the right end part of the upper sleeve (14);

the upper molding assembly (120), the upper spacer bush (2), the first end spacer bush (5) and the second end spacer bush (6) are sleeved on the upper sleeve (14);

the first fastening piece (3) is connected to the first shaft body (12) in a threaded mode;

the second fastener (4) is in threaded connection with the second shaft body (13);

the lower mandrel assembly (210) comprises a third shaft body (15), a fourth shaft body (16) and a lower sleeve (17); wherein, the liquid crystal display device comprises a liquid crystal display device,

the third shaft body (15) is connected with the left end part of the lower sleeve (17);

the fourth shaft body (16) is connected with the right end part of the lower sleeve (17);

the lower molding assembly (220), the lower spacer bush (7), the third end spacer bush (10) and the fourth end spacer bush (11) are sleeved on the lower sleeve (17);

the third fastener (8) is in threaded connection with the third shaft body (15);

the fourth fastener (9) is connected to the fourth shaft body (16) in a threaded manner.

3. The wave plate molding apparatus of claim 2, wherein,

an upper cooling cavity (18) is arranged in the upper sleeve (14);

a first medium channel (19) communicated with the upper cooling cavity (18) is arranged in the first shaft body (12);

a second medium channel (20) communicated with the upper cooling cavity (18) is arranged in the second shaft body (13);

a lower cooling cavity (21) is arranged in the lower sleeve (17);

a third medium channel (22) communicated with the lower cooling cavity (21) is arranged in the third shaft body (15);

a fourth medium channel (23) communicated with the lower cooling cavity (21) is arranged in the fourth shaft body (16).

4. The wave plate molding apparatus of claim 1, wherein,

the upper spacer bush (2) and two adjacent upper forming assemblies (120) are surrounded to form a forming groove (24);

the lower spacers (7) are in one-to-one correspondence with the upper spacers (2) and are aligned with the corresponding upper spacers (2);

the outer peripheral part of the lower spacer bush (7) is provided with a forming part (25) which protrudes outwards along the radial direction and is aligned with the corresponding forming groove (24).

5. The wave plate molding apparatus of claim 1, wherein,

the upper molding assemblies (120) are in one-to-one correspondence with the lower molding assemblies (220), and the upper molding assemblies (120) are aligned with the corresponding lower molding assemblies (220);

the upper molding assembly (120) comprises an upper central steel sleeve (26) and two upper end steel sleeves (27);

the upper center steel sleeve (26) and the upper end steel sleeve (27) are sleeved on the upper mandrel assembly (110);

the upper center steel sleeve (26) is positioned between the two upper end steel sleeves (27), and the outer diameter of the upper center steel sleeve (26) is smaller than the outer diameter of the upper end steel sleeve (27);

the lower molding assembly (220) comprises a lower center steel sleeve (28) and two lower end steel sleeves (29);

the lower center steel sleeve (28) and the lower end steel sleeve (29) are sleeved on the lower mandrel assembly (210);

the lower center steel sleeve (28) is positioned between the two lower end steel sleeves (29), and the outer diameter of the lower center steel sleeve (28) is larger than the outer diameter of the lower end steel sleeve (29).

6. The wave plate forming device according to claim 1, further comprising a frame (30), a driving device and a gap adjusting device in one-to-one correspondence with the upper forming roller (100); wherein, the liquid crystal display device comprises a liquid crystal display device,

the gap adjusting device is connected to the frame (30);

an upper mandrel assembly (110) in the upper forming roller (100) is rotatably connected to the corresponding gap adjusting device;

a lower mandrel assembly (210) in the lower forming roll (200) is rotatably connected to the frame (30);

the upper forming roller (100) is positioned above the corresponding lower forming roller (200);

the driving device is connected with the lower mandrel assembly (210) and is used for driving the lower mandrel assembly (210) to rotate so as to drive the whole lower forming roller (200) to rotate.

7. The wave plate forming device according to claim 6, characterized in that the gap adjusting device comprises a first slide (31), a first adjustable stroke cylinder (32), a second slide (33) and a second adjustable stroke cylinder (34); wherein, the liquid crystal display device comprises a liquid crystal display device,

the first sliding seat (31) and the second sliding seat (33) are respectively and slidably connected to the frame (30);

an end of the upper spindle assembly (110) is rotatably connected to the first slide (31);

the other end part of the upper mandrel assembly (110) is rotatably connected to the second sliding seat (33);

the first stroke-adjustable cylinder (32) is connected to the frame (30) and connected to the first slide (31);

the second stroke-adjustable cylinder (34) is connected to the frame (30) and is connected to the second slide (33).

8. The wave plate molding apparatus of claim 6, wherein,

the lower forming rollers (200) are provided with at least two, and the at least two lower forming rollers (200) are sequentially arranged along the moving direction of the plate;

the driving device comprises a power part, driving gears (35) which are in one-to-one correspondence with the lower forming rollers (200) and at least one transmission gear (36);

the driving gear (35) is connected to a lower mandrel assembly (210) in the corresponding lower forming roller (200);

the transmission gears (36) are arranged between any two adjacent driving gears (35), the two adjacent driving gears (35) are meshed and transmitted through the transmission gears (36), and the transmission gears (36) are rotatably connected to the frame (30);

the power component is connected to the frame (30) and connected to the transmission gear (36) and is used for driving the transmission gear (36) to rotate.

9. The wave plate forming device according to claim 6, characterized in that the frame (30) is further connected with a receiving device for receiving the plate material passing through the forming gap (1), the receiving device comprising at least two rollers (37) rotatably connected to the frame (30) for holding the plate material.

10. The wave plate forming device according to claim 6, further comprising at least two ground rails (38), wherein a plurality of pulleys (39) are connected to the bottom of the frame (30), and the frame (30) is slidably connected to the ground rails (38) through the pulleys (39).

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