Splicing structure of paper machine net front box

Abstract

The utility model belongs to the technical field of front net boxes, and particularly relates to a splicing structure of a front net box of a paper machine, which comprises a front net box body, a pulp pipe body is mounted at the top of the front net box body, a mounting piece is fixed on the outer side of the pulp pipe body, and at least one clamping block is arranged on the outer side of the mounting piece. Two symmetrical connecting arc pieces are fixed to the top of the net front box body and located on the outer sides of the mounting pieces and the clamping blocks, the connecting arc pieces are used for limiting rotation of the mounting pieces and the clamping blocks, clamping structures are further installed on the inner sides of the clamping blocks, and the clamping structures are used for clamping the mounting pieces; the clamping structure comprises a mounting groove which is formed in the mounting piece and corresponds to the connecting arc piece, a sliding block is slidably connected to the interior of the mounting groove, at least one first spring is further arranged in the mounting groove, the first spring is connected with the mounting piece and the sliding block, and a clamping bin corresponding to the sliding block is arranged on the inner side of the connecting arc piece. According to the utility model, the detachable connection between the front net box and the pulp pipe can be realized, and the disassembly and replacement are convenient.

Description

Technical Field

[0001] The utility model belongs to the technical field of net head boxes, and in particular relates to an assembly structure of a net head box of a paper machine. Background Art

[0002] In the papermaking industry, the headbox of a paper machine is one of the key equipment. Its main function is to spray the pulp evenly onto the wire of the paper machine to form a wet paper web. Traditional paper machine headboxes usually adopt a fixed structure, that is, the headbox and the pulp pipe are connected by welding or screws. This design method is inconvenient during disassembly and replacement. If disassembly and replacement are required, the maintenance cost and time cost will be increased.

[0003] Therefore, it is necessary to design a new paper machine head box assembly structure to solve the above problems. Utility Model Content

[0004] The utility model aims to provide an assembly structure of a paper machine net head box, which can realize a detachable connection between the net head box and a pulp pipe, and is convenient for disassembly and replacement.

[0005] The technical solution adopted by the utility model is as follows:

[0006] An assembly structure of a paper machine net head box, comprising a net head box body, a pulp pipe body is installed on the top of the net head box body, a mounting plate is fixed on the outside of the pulp pipe body, at least one clamping block is arranged on the outside of the mounting plate, two symmetrical connecting arc plates are fixed on the top of the net head box body and on the outside of the mounting plate and the clamping block, and the connecting arc plates are used to limit the rotation of the mounting plate and the clamping block;

[0007] A clamping structure is also installed on the inner side of the clamping block, and the clamping structure is used to clamp the installation piece.

[0008] The clamping structure includes a mounting groove arranged inside the mounting piece and corresponding to the connecting arc piece, a sliding block is slidably connected inside the mounting groove, at least one first spring is also arranged inside the mounting groove, and the first spring is connected to the mounting piece and the sliding block, a clamping slot corresponding to the sliding block is arranged on the inner side of the connecting arc piece, and the top and bottom of the sliding block are both provided with oblique cut surfaces;

[0009] The outer side of the connecting arc piece is equipped with a limiting component, and the limiting component is used to limit the displacement of the sliding block.

[0010] The limiting assembly includes a first limiting hole and a second limiting hole arranged inside the connecting arc piece and the sliding block, a clamping rod is slidably connected inside the first limiting hole and the second limiting hole, a top sheet is fixed on the top of the clamping rod, and a second spring is installed between the top sheet and the connecting arc piece;

[0011] A limited slip component is arranged on the outer side of the clamping rod, and the limited slip component is used for limiting the sliding of the clamping rod.

[0012] The slip limiting assembly includes a plurality of slots arranged on the outside of the clamping rod and near the top position, an annular groove is arranged on the outside of the clamping rod and at the bottom of the slot, and the plurality of slots are connected with the annular groove, a sliding groove is arranged on the outside of the clamping rod and at the bottom of the annular groove, and the sliding groove is connected with the annular groove, and a clamping tooth slidably connected with the clamping groove, the annular groove and the sliding groove is also arranged on the inner side of the first limiting hole.

[0013] One side of the latching tooth is arranged as an inclined surface, and the other side is arranged as a right-angle surface, and the latching groove is matched with the latching tooth.

[0014] A blocking block is arranged on the inner side of the clamping groove and close to the annular groove.

[0015] The technical effects achieved by the utility model are:

[0016] The utility model can realize the detachable connection between the net head box and the pulp pipe, which is convenient for transportation and replacement. At the same time, the structure should also have good sealing performance and stability to ensure the normal operation of the paper machine net head box. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the utility model;

[0018] Figure 2 It is a schematic diagram of the structure between the slurry pipe body, the clamping block and the connecting arc piece in the utility model;

[0019] Figure 3 It is a schematic diagram of the structure connecting the arc piece, the sliding block and the first spring in the utility model;

[0020] Figure 4 It is a schematic diagram of the structure between the clamping groove, the connecting arc piece and the second spring in the utility model;

[0021] Figure 5 It is a structural schematic diagram of the second spring, the sliding groove and the annular groove in the utility model.

[0022] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0023] 1. Net-front box body; 2. Pulp pipe body; 3. Mounting plate; 4. Clamp block; 5. Connecting arc plate; 6. Mounting groove; 7. Sliding block; 8. Oblique section; 9. First spring; 10. Clamping bin; 11. Clamping rod; 12. First limiting hole; 13. Top plate; 14. Second spring; 15. Clamping groove; 16. Clamping teeth; 17. Annular groove; 18. Sliding groove; 19. Stop block; 20. Second limiting hole. DETAILED DESCRIPTION

[0024] In order to make the purpose and advantages of the utility model more clear, the utility model is specifically described in combination with the following embodiments. It should be understood that the following text is only used to describe one or several specific implementations of the utility model, and does not strictly limit the protection scope of the specific request of the utility model.

[0025] like Figure 1-5 As shown, an assembly structure of a head box of a paper machine comprises a head box body 1, a pulp pipe body 2 is installed on the top of the head box body 1, a multi-layer sealing gasket is arranged between the pulp pipe body 2 and the head box body 1, and is used to increase the sealing effect between the pulp pipe body 2 and the head box body 1, a mounting plate 3 is fixed on the outside of the pulp pipe body 2, at least one clamping block 4 is arranged on the outside of the mounting plate 3, two symmetrical connecting arc plates 5 are fixed on the top of the head box body 1 and on the outside of the mounting plate 3 and the clamping block 4, and the connecting arc plates 5 are used to limit the rotation of the mounting plate 3 and the clamping block 4;

[0026] As mentioned above, the pulp pipe body 2 is inserted into the interior of the net head box body 1, and is used to input pulp into the interior of the net head box body 1. When inserted into the pulp pipe body 2, it can be restricted by the clamping block 4, so that the mounting piece 3 can clamp the clamping block 4, thereby preventing the mounting piece 3 and the clamping block 4 from rotating, and providing a preliminary auxiliary effect for the subsequent clamping of the mounting piece 3;

[0027] A clamping structure is also installed on the inner side of the clamping block 4 , and the clamping structure is used to clamp the installation piece 3 .

[0028] See attached Figure 3 The clamping structure includes a mounting groove 6 arranged inside the mounting piece 3 and corresponding to the connecting arc piece 5, a sliding block 7 is slidably connected inside the mounting groove 6, at least one first spring 9 is also arranged inside the mounting groove 6, and the first spring 9 is connected to the mounting piece 3 and the sliding block 7, a clamping chamber 10 corresponding to the sliding block 7 is arranged on the inner side of the connecting arc piece 5, and an oblique cut surface 8 is arranged on the top and bottom of the sliding block 7;

[0029] When installing the installation sheet 3, the oblique cut surface 8 can be set so that the sliding block 7 will be retracted into the installation groove 6 in advance, until the sliding block 7 is extended to the docking with the card compartment 10, so that the sliding block 7 can be ejected into the card compartment 10 by the first spring 9 to engage the installation sheet 3. The oblique cut surface 8 set on the top of the sliding block 7 makes it more convenient for the user to pull out the installation sheet 3 upward later, and the sliding block 7 will be retracted into the installation groove 6 again through the oblique cut surface 8;

[0030] The outer side of the connecting arc piece 5 is equipped with a limit assembly, and the limit assembly is used to limit the displacement of the sliding block 7.

[0031] Refer to the attached Figure 4 and attached Figure 5 The limiting assembly includes a first limiting hole 12 and a second limiting hole 20 arranged inside the connecting arc piece 5 and the sliding block 7. The first limiting hole 12 and the second limiting hole 20 are slidably connected with a clamping rod 11, which can be inserted into the first limiting hole 12 and the second limiting hole 20, thereby limiting the sliding block 7 to prevent the sliding block 7 from moving out of the limiting range of the connecting arc piece 5 due to vibration or the like. A top sheet 13 is fixed on the top of the clamping rod 11, and a second spring 14 is installed between the top sheet 13 and the connecting arc piece 5. The second spring 14 can be rotatably connected to any one or both of the connecting arc piece 5 or the top sheet 13;

[0032] When the sliding block 7 is restricted, the clamping rod 11 can be inserted into the first limiting hole 12 and the second limiting hole 20, and the second spring 14 can be arranged so that the second spring 14 can drive the clamping rod 11 to be fastened and stably arranged in the second limiting hole 20 to restrict the sliding block 7;

[0033] A limited slip component is disposed on the outer side of the clamping rod 11 , and the limited slip component is used to limit the sliding of the clamping rod 11 .

[0034] Refer to the attached Figure 5 According to the above structure, the sliding limit assembly includes a plurality of slots 15 arranged on the outside of the card rod 11 and near the top position, the length of the slot 15 is at most 2CM, an annular groove 17 is arranged on the outside of the card rod 11 and at the bottom of the slot 15, and the plurality of slots 15 are connected with the annular groove 17, a sliding groove 18 is arranged on the outside of the card rod 11 and at the bottom of the annular groove 17, and the sliding groove 18 is connected with the annular groove 17, and a latch tooth 16 slidably connected with the slot 15, the annular groove 17 and the sliding groove 18 is also arranged on the inner side of the first limiting hole 12, the thickness of the latch tooth 16 is consistent with the length of the annular groove 17, so that the latch tooth 16 can move within the slot 15 by no more than 2CM, so as to prevent the card rod 11 from being separated from the sliding block 7 due to excessive movement, and ensure that the latch tooth 16 can rotate in the annular groove 17;

[0035] When it is necessary to pull the card rod 11 to make the sliding block 7 disengage from the limit between the card bin 10, the top plate 13 can be pulled upward to drive the card rod 11 and the card slot 15 to move upward, so that the card teeth 16 move into the annular groove 17, and the top plate 13 is rotated to make the card teeth 16 rotate to be aligned with the sliding groove 18, and then the top plate 13 is pulled upward to drive the card teeth 16 to slide in the sliding groove 18, so that the card rod 11 can be disengaged from the sliding block 7;

[0036] One side of the latching tooth 16 is provided with an inclined surface, and the other side is provided with a right-angled surface, and the latching groove 15 is adapted to the latching tooth 16. When the latching rod 11 does not need to be disengaged from the sliding block 7, the right-angled surface of the latching tooth 16 can be brought close to the sliding groove 18, and the latching tooth 16 can be assembled into one of the latching grooves 15 adjacent to the sliding groove 18. Through the setting of its right-angled surface, even if the latching rod 11 vibrates, the latching tooth 16 will not rotate toward the right-angled surface, but will rotate toward the inclined surface. By providing a plurality of latching grooves 15, the latching tooth 16 can be easily disengaged from the sliding block 7. 16 needs to cross multiple card slots 15 before it can contact the sliding slot 18, which increases the stability of the card rod 11. A blocking block 19 is provided on the inner side of the card slot 15 and close to the annular groove 17. Through the setting of the blocking block 19, even if the card rod 11 vibrates upward, the card tooth 16 needs to cross the blocking block 19 to move into the annular groove 17. The top and bottom of the blocking block 19 are also provided with inclined surfaces, so that when the user actively pulls the card rod 11, the card tooth 16 can cross the blocking block 19 with less restriction.

[0037] The above is only a preferred embodiment of the present invention. It should be noted that, for ordinary technicians in the technical field, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be regarded as the protection scope of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention shall be implemented according to the conventional means in the field unless otherwise specified and limited.

Claims

1. An assembly structure of a head box of a paper machine, comprising a head box body (1), characterized in that: A pulp pipe body (2) is installed on the top of the net head box body (1), a mounting plate (3) is fixed on the outside of the pulp pipe body (2), at least one clamping block (4) is arranged on the outside of the mounting plate (3), two symmetrical connecting arc plates (5) are fixed on the top of the net head box body (1) and on the outside of the mounting plate (3) and the clamping block (4), and the connecting arc plates (5) are used to limit the rotation of the mounting plate (3) and the clamping block (4); A clamping structure is also installed on the inner side of the clamping block (4), and the clamping structure is used to clamp the installation sheet (3).

2. The assembly structure of the head box of a paper machine according to claim 1, characterized in that: The clamping structure comprises a mounting groove (6) arranged inside the mounting plate (3) and corresponding to the connecting arc plate (5); a sliding block (7) is slidably connected inside the mounting groove (6); at least one first spring (9) is also arranged inside the mounting groove (6), and the first spring (9) is connected to the mounting plate (3) and the sliding block (7); a clamping slot (10) corresponding to the sliding block (7) is arranged on the inner side of the connecting arc plate (5); and oblique cut surfaces (8) are arranged on the top and bottom of the sliding block (7); A limiting component is assembled on the outer side of the connecting arc piece (5), and the limiting component is used to limit the displacement of the sliding block (7).

3. The assembly structure of the head box of a paper machine according to claim 2, characterized in that: The limiting assembly comprises a first limiting hole (12) and a second limiting hole (20) arranged inside the connecting arc piece (5) and the sliding block (7); a clamping rod (11) is slidably connected inside the first limiting hole (12) and the second limiting hole (20); a top plate (13) is fixed on the top of the clamping rod (11); and a second spring (14) is installed between the top plate (13) and the connecting arc piece (5); A limited slip component is arranged on the outer side of the clamping rod (11), and the limited slip component is used to limit the sliding of the clamping rod (11).

4. The assembly structure of the head box of a paper machine according to claim 3, characterized in that: The slip limiting assembly comprises a plurality of slots (15) arranged on the outside of the clamping rod (11) and near the top position, an annular groove (17) arranged on the outside of the clamping rod (11) and at the bottom of the slots (15), and the plurality of slots (15) are connected to the annular groove (17), a sliding groove (18) is arranged on the outside of the clamping rod (11) and at the bottom of the annular groove (17), and the sliding groove (18) is connected to the annular groove (17), and a clamping tooth (16) slidably connected to the slots (15), the annular groove (17) and the sliding groove (18) is also arranged on the inside of the first limiting hole (12).

5. The assembly structure of the head box of a paper machine according to claim 4, characterized in that: One side of the latching tooth (16) is provided as an inclined surface, and the other side is provided as a right-angled surface, and the latching groove (15) is adapted to the latching tooth (16).

6. The assembly structure of the head box of a paper machine according to claim 4, characterized in that: A blocking block (19) is provided on the inner side of the clamping groove (15) and at a position close to the annular groove (17).

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