Double-disc pulping machine

Abstract

The utility model provides a double-disc pulping machine, and relates to the field of papermaking pulping equipment. An adjusting box is installed in the middle of the upper end face of the base, shell covers are fixedly installed on the left side face and the right side face of the adjusting box correspondingly, driving motors are fixedly installed on the left side and the right side of the upper end face of the base correspondingly, and main grinding discs are fixedly installed at the opposite ends of rotating shafts of the two driving motors correspondingly. Through cooperation of an anti-loosening gear and an anti-loosening mechanism, after the distance between the two fixed millstones is adjusted, the two-way lead screw can be effectively prevented from loosening, the stability of the two fixed millstones during grinding is prevented from being affected, and therefore the raw material grinding quality is improved; the problems that in the actual using process of an existing double-disc pulping machine, an adjusted two-way lead screw is prone to loosening under the action of vibration force, then the stability of two fixed grinding discs during grinding is affected, and therefore the grinding quality of raw materials is affected are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of papermaking pulping equipment, in particular to a double-disc pulping machine. Background Art

[0002] Double disc refiner is a kind of equipment commonly used in pulping and papermaking. It is mainly used as a continuous pulping equipment for coarse and fine grinding in the pulping system of the papermaking industry. It can also be used as a high-efficiency decomposition equipment for pulp residue regrinding and waste paper recycled pulp. At present, paper mills use double disc refiners in the production of pearlescent printing paper.

[0003] There are still problems in the use of the double-disc refiner in the prior art. For example, the double-disc refiner disclosed in patent application number: CN202223476813.7, when in use, although the distance between the two fixed grinding discs can be adjusted according to the required degree of grinding fineness of the raw materials, but in actual use, the adjusted bidirectional screw rod is easily loosened under the action of vibration force (during the operation of the double-disc refiner, the fixed grinding disc will generate vibration force), which in turn affects the stability of the two fixed grinding discs when grinding, thereby affecting the grinding quality of the raw materials. Utility Model Content

[0004] The disclosed embodiment relates to a double-disc refiner, which, through the cooperation of an anti-loosening gear and an anti-loosening mechanism, can enable the worker to remove his foot from the pedal after completing the adjustment of the distance between the two fixed grinding discs. Then, at this time, the rectangular sliding block moves backward with the two anti-loosening tooth blocks under the action of the spring force outside the pulling rod, so that the rear ends of the two anti-loosening tooth blocks are in close contact with the front side of the outer peripheral surface of the anti-loosening gear, thereby enabling the bidirectional lead screw to obtain an effective anti-loosening effect, avoiding affecting the stability of the two fixed grinding discs when grinding materials, thereby improving the grinding quality of the raw materials.

[0005] In a first aspect of the present disclosure, a double-disc refiner is provided, specifically comprising: a base; an adjusting box is installed in the middle of the upper end surface of the base, and a shell cover is fixedly installed on the left and right side surfaces of the adjusting box, a driving motor is fixedly installed on the left and right sides of the upper end surface of the base, and a main grinding disc is fixedly installed on the opposite ends of the rotating shafts of the two driving motors, and the two main grinding discs are respectively located inside the two shell covers; a bidirectional lead screw is rotatably connected inside the adjusting box, and an anti-loosening gear is fixedly installed on the outer upper end of the bidirectional lead screw, an anti-loosening mechanism is arranged on the front side of the upper end surface of the adjusting box, and the anti-loosening mechanism is located in front of the anti-loosening gear.

[0006] In at least some embodiments, a strip slide groove is provided on both the upper and lower side surfaces inside the adjustment box; two reverse threads are symmetrically arranged on the outside of the bidirectional screw rod, and the outside of the bidirectional screw rod is connected to two adjustment drive plates through the two reverse threads; the two adjustment drive plates are slidably connected with vertical guide rods on the front and rear sides, and the vertical guide rods are fixed inside the strip slide groove; the opposite surfaces of the two adjustment drive plates are rotatably connected with four connecting rods through a rotating shaft, and the outer ends of the four connecting rods on the left and the four connecting rods on the right are rotatably connected to two fixed grinding discs, and each fixed grinding disc is provided with a rectangular slider on the upper and lower sides, and the rectangular slider is slidably connected to the strip slide groove; two annular limit blocks are fixed to the outside of the bidirectional screw rod.

[0007] In at least some embodiments, two rectangular slide grooves are provided on the upper and lower sides of the inner circumference of the shell cover, and two rectangular openings are provided on the upper and lower sides of the outer circumference of the shell cover, and the two rectangular openings are respectively connected to the two rectangular slide grooves.

[0008] In at least some embodiments, a feeding shell is fixedly mounted on the upper parts of the two shell covers, and the two feeding shells are respectively located outside the two rectangular openings above the two shell covers, and the upper parts of the two feeding shells are connected to a feeding three-way pipe fitting through a water pipe.

[0009] In at least some embodiments, a material discharge shell is fixedly installed at the lower part of each of the two shell covers, and the two material discharge shells are respectively located outside the two rectangular openings below the two shell covers, and the bottoms of the two material discharge shells are connected to a material discharge three-way pipe fitting through a water pipe.

[0010] In at least some embodiments, the anti-loosening mechanism includes a rectangular sliding shell, a rectangular sliding block, an anti-loosening tooth block, a T-shaped pull rod and a pulling rod. The rectangular sliding shell is fixedly installed on the front side of the upper end face of the adjusting box, and the rectangular sliding block is slidably connected inside the rectangular sliding shell; two anti-loosening tooth blocks are fixedly connected to the rear end face of the rectangular sliding block, and a pulling rod is arranged on the front end face of the rectangular sliding block, the pulling rod passes through the front side wall of the rectangular sliding shell, and the outside of the pulling rod is located inside the rectangular sliding shell and is sleeved with a spring; a rectangular through opening is opened on the upper end face of the rectangular sliding shell; a T-shaped pull rod is fixed on the upper end face of the rectangular sliding block, and the T-shaped pull rod passes through the rectangular through opening opened on the upper end face of the rectangular sliding shell; when the anti-loosening mechanism is in the anti-loosening state, the rear ends of the two anti-loosening tooth blocks are in close contact with the front side of the outer peripheral face of the anti-loosening gear.

[0011] At least some embodiments further include an auxiliary driving member, which is arranged at the lower front part of the anti-loosening mechanism, and the auxiliary driving member includes a pedal, a vertical sliding rod, an L-shaped fixed plate, a pull rope and a pulley. The bottom end surface of the pedal is fixedly connected with four vertical sliding rods, and the four vertical sliding rods are slidably connected to the L-shaped fixed plate, and each vertical sliding rod is provided with a limit block at the lower end, and the L-shaped fixed plate is fixed to the front side of the lower part of the adjusting box; the upper end surface of the pedal is fixedly connected with a pull rope, and the other end of the pull rope is fixedly connected to the front end of the pull rod; the outside of the pull rope is slidably connected with a pulley, and the pulley is installed on the front side of the upper part of the adjusting box.

[0012] The utility model provides a double-disc refiner, which has the following beneficial effects:

[0013] 1. Through the cooperation of the anti-loosening gear and the anti-loosening mechanism, after completing the adjustment of the distance between the two fixed grinding discs, the staff can move their feet away from the pedal. Then, under the action of the spring force outside the pulling rod, the rectangular sliding block moves backward with the two anti-loosening tooth blocks, so that the rear ends of the two anti-loosening tooth blocks are in close contact with the front side of the outer peripheral surface of the anti-loosening gear, so that the bidirectional lead screw can be effectively prevented from loosening, avoiding affecting the stability of the two fixed grinding discs when abrasive, thereby improving the grinding quality of raw materials.

[0014] 2. Through the setting of the auxiliary driving parts, when the two anti-loosening tooth blocks are pulled forward, only the pedal is stepped down by foot, and the pulling rod, the rectangular sliding block and the two anti-loosening tooth blocks can be moved forward under the pull rope, so that the rear ends of the two anti-loosening tooth blocks are separated from the front side of the outer peripheral surface of the anti-loosening gear, thereby making it more convenient to separate the anti-loosening tooth blocks from the anti-loosening gear. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solution of the embodiment of the utility model, the drawings of the embodiment will be briefly introduced below.

[0016] The drawings described below only relate to some embodiments of the present invention, but are not intended to limit the present invention.

[0017] In the attached picture:

[0018] Figure 1 A structural diagram showing the overall structure of the present application;

[0019] Figure 2 A schematic diagram of the structure of the present application in a split state is shown;

[0020] Figure 3 The schematic diagram of the structure after the adjustment box, the bidirectional screw rod and the fixed grinding disc of the present application are disassembled is shown;

[0021] Figure 4The schematic diagram of the structure after the bidirectional lead screw and the adjustment drive plate of the present application are separated is shown;

[0022] Figure 5 The schematic diagram of the structure of the driving motor and the main grinding disc of the present application is shown;

[0023] Figure 6 A schematic diagram of the structure of the shell cover of the present application is shown;

[0024] Figure 7 A schematic diagram of a partial cross-section of a rectangular sliding shell of the present application is shown;

[0025] Figure 8 This application shows Figure 7 Schematic diagram of the structure with a partial enlargement at point A in the middle.

[0026] Reference numerals list

[0027] 1. Base; 2. Adjustment box; 201. Bidirectional screw rod; 202. Adjustment drive plate; 203. Vertical guide rod; 204. Connecting rod; 205. Fixed grinding disc; 206. Strip slide; 207. Rectangular slider; 208. Anti-loosening gear; 209. Annular limit block; 3. Driving motor; 301. Main grinding disc; 4. Shell cover; 401. Rectangular slide; 402. Rectangular opening; 5. Feeding three-way pipe fitting; 501. Feeding shell; 6. Discharging three-way pipe fitting; 601. Discharging shell; 7. Anti-loosening mechanism; 701. Rectangular slide shell; 702. Rectangular slide block; 703. Anti-loosening tooth block; 704. T-type pull rod; 705. Pull rod; 8. Auxiliary driving member; 801. Pedal; 802. Vertical slide rod; 803. L-type fixed plate; 804. Pull rope; 805. Pulley. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution of the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings of the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the described embodiment 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.

[0029] Example 1: Please refer to Figures 1 to 8 :

[0030] The utility model proposes a double-disc pulping machine, comprising: a base 1; an adjusting box 2 is installed in the middle of the upper end surface of the base 1, and a shell cover 4 is fixedly installed on the left and right sides of the adjusting box 2, a driving motor 3 is fixedly installed on the left and right sides of the upper end surface of the base 1, and a main grinding disc 301 is fixedly installed at the opposite ends of the rotating shafts of the two driving motors 3, and the two main grinding discs 301 are respectively located inside the two shell covers 4; a bidirectional screw rod 201 is rotatably connected inside the adjusting box 2, and an anti-loosening gear 208 is fixedly installed on the upper end of the outside of the bidirectional screw rod 201, an anti-loosening mechanism 7 is arranged on the front side of the upper end surface of the adjusting box 2, and the anti-loosening mechanism 7 is located in front of the anti-loosening gear 208; the cooperation of the anti-loosening mechanism 7 and the anti-loosening gear 208 can prevent the bidirectional screw rod 201 from loosening.

[0031] A strip slide 206 is provided on both the upper and lower side surfaces inside the adjusting box 2; the outside of the bidirectional screw rod 201 is symmetrically provided with two reverse threads, and the outside of the bidirectional screw rod 201 is connected to two adjusting drive plates 202 through two reverse threads; the two adjusting drive plates 202 are slidably connected with vertical guide rods 203 on the front and rear sides, and the vertical guide rods 203 are fixed inside the strip slide 206; the opposite surfaces of the two adjusting drive plates 202 are rotatably connected with four connecting rods 204 through a rotating shaft, and the outer ends of the four connecting rods 204 on the left and the four connecting rods 204 on the right are rotatably connected to two fixed grinding discs 205, and each fixed grinding disc 205 is provided with a rectangular slider 207 on the upper and lower sides, and the rectangular slider 207 is slidably connected to the strip slide 206; two annular limit blocks 209 are fixed on the outside of the bidirectional screw rod 201, which are used to limit the two adjusting drive plates 202 when they move in relative directions.

[0032] There are two rectangular chute grooves 401 on the upper and lower sides of the inner circumference of the shell cover 4, and there are two rectangular openings 402 on the upper and lower sides of the outer circumference of the shell cover 4, and the two rectangular openings 402 are respectively communicated with the two rectangular chute grooves 401; a loading shell 501 is fixedly installed on the upper part of the two shell covers 4, and the two loading shells 501 are respectively located outside the two rectangular openings 402 above the two shell covers 4, and the upper parts of the two loading shells 501 are connected to the loading three-way pipe fittings 5 ​​through water pipes; a unloading shell 601 is fixedly installed on the lower part of the two shell covers 4, and the two unloading shells 601 are respectively located outside the two rectangular openings 402 below the two shell covers 4, and the bottoms of the two unloading shells 601 are connected to the unloading three-way pipe fittings 6 through water pipes.

[0033] The anti-loosening mechanism 7 includes a rectangular sliding shell 701, a rectangular sliding block 702, an anti-loosening tooth block 703, a T-shaped pull rod 704 and a pulling rod 705. The rectangular sliding shell 701 is fixedly installed on the front side of the upper end face of the adjustment box 2, and the rectangular sliding block 702 is slidably connected inside the rectangular sliding shell 701; the rear end face of the rectangular sliding block 702 is fixedly connected with two anti-loosening tooth blocks 703, and the front end face of the rectangular sliding block 702 is provided with a pulling rod 705, the pulling rod 705 passes through the front side wall of the rectangular sliding shell 701, and the outside of the pulling rod 705 is located inside the rectangular sliding shell 701 and is sleeved with a spring; a rectangular through opening is opened on the upper end face of the rectangular sliding shell 701; A T-shaped pull rod 704 is fixed on the upper end surface of the rectangular sliding block 702, and the T-shaped pull rod 704 passes through the rectangular through-hole opened on the upper end surface of the rectangular sliding shell 701. The T-shaped pull rod 704 is used to limit the rectangular sliding block 702, and the T-shaped pull rod 704 can also be directly pulled forward manually to realize the separation operation of the anti-loosening tooth block 703 and the anti-loosening gear 208; when the anti-loosening mechanism 7 is in the anti-loosening state, the rear ends of the two anti-loosening tooth blocks 703 are in close contact with the front side of the outer peripheral surface of the anti-loosening gear 208, so that the bidirectional screw 201 is effectively prevented from loosening, thereby improving the stability of the two fixed grinding discs 205 when abrasive.

[0034] Embodiment 2, based on embodiment 1, as Figure 1 , Figure 7 and Figure 8 As shown, it also includes an auxiliary driving member 8, which is arranged at the lower front part of the anti-loosening mechanism 7. The auxiliary driving member 8 includes a pedal 801, a vertical slide bar 802, an L-shaped fixed plate 803, a pull rope 804 and a pulley 805. The bottom end surface of the pedal 801 is fixedly connected with four vertical slide bars 802, and the four vertical slide bars 802 are slidably connected to the L-shaped fixed plate 803. The lower end of each vertical slide bar 802 is provided with a limit block, and the L-shaped fixed plate 803 is fixed to the front side of the lower part of the adjusting box 2; the upper end surface of the pedal 801 is fixedly connected with a pull rope 804, and the other end of the pull rope 804 is fixedly connected to the front end of the pull rod 705; the pull rope 804 is slidably connected to the pulley 805 outside, and the pulley 805 is installed on the upper front side of the adjusting box 2; through the setting of the auxiliary driving member 8, it can make the anti-loosening tooth block 703 and the anti-loosening gear 208 separate and operate more conveniently.

[0035] The working principle of this embodiment is as follows: in the process of producing pearlescent printing paper, firstly, the two driving motors 3 are started, and then the rotating shafts of the two driving motors 3 respectively drive the two main grinding discs 301 to rotate, and then the pulp raw material is transported to the inside of the feeding shell 501 and the two shell covers 4 through the feeding three-way pipe fitting 5 and the water pipe, and then the pulp raw material is ground by the cooperation of the two rotating main grinding discs 301 and the two fixed grinding discs 205, and the ground pulp then flows to the inside of the unloading three-way pipe fitting 6 through the two unloading shells 601 and the water pipe, and finally discharged through the front end outlet of the unloading three-way pipe fitting 6.

[0036] When it is necessary to adjust the distance between the two fixed grinding discs 205 according to the fineness of the raw material to be ground, first, the staff steps on the pedal 801 downward with their feet, and then the pedal 801 moves the lower end of the pull rope 804 downward, and then the upper end of the pull rope 804 moves the pulling rod 705, the rectangular sliding block 702 and the two anti-loosening tooth blocks 703 forward, so that the rear ends of the two anti-loosening tooth blocks 703 are separated from the front side of the outer circumference of the anti-loosening gear 208, and then the staff rotates the bidirectional screw rod 201 at this time, and then the two adjustment drive plates 202 are simultaneously moved in opposite directions or opposite directions under the action of the two reverse threads on the outside of the bidirectional screw rod 201. The two fixed grinding discs 205 move in opposite directions at the same time through eight connecting rods 204, so as to complete the adjustment of the distance between the two fixed grinding discs 205. After the adjustment, the staff removes their feet from the pedal 801, so that the pulling rod 705, the rectangular sliding block 702 and the two anti-loosening tooth blocks 703 lose their pulling force. Then, at this time, the rectangular sliding block 702 moves backward with the two anti-loosening tooth blocks 703 under the action of the external spring force of the pulling rod 705, so that the rear ends of the two anti-loosening tooth blocks 703 are in close contact with the front side of the outer peripheral surface of the anti-loosening gear 208, so that the two-way screw rod 201 is effectively prevented from loosening.

[0037] In this article, there are a few points to note:

[0038] 1. The drawings of the embodiments of the present disclosure only involve structures related to the embodiments of the present disclosure, and other structures may refer to general designs.

[0039] 2. In the absence of conflict, the embodiments of the present disclosure and the features therein may be combined with each other to obtain new embodiments.

[0040] The above are only specific embodiments of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present disclosure, which should be included in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be based on the protection scope of the claims.

Claims

1. A double disc refiner, comprising: A base (1); an adjusting box (2) is installed in the middle of the upper end surface of the base (1), and a shell cover (4) is fixedly installed on the left and right side surfaces of the adjusting box (2); a driving motor (3) is fixedly installed on the left and right sides of the upper end surface of the base (1), and a main grinding disc (301) is fixedly installed at the opposite ends of the rotating shafts of the two driving motors (3), and the two main grinding discs (301) are respectively located inside the two shell covers (4); it is characterized in that a bidirectional screw rod (201) is rotatably connected inside the adjusting box (2), and an anti-loosening gear (208) is fixedly installed on the upper end of the bidirectional screw rod (201), and an anti-loosening mechanism (7) is arranged on the front side of the upper end surface of the adjusting box (2), and the anti-loosening mechanism (7) is located in front of the anti-loosening gear (208).

2. A double disc refiner according to claim 1, characterized in that: A strip-shaped slide groove (206) is provided on both upper and lower side surfaces of the regulating box (2); the outer side of the bidirectional screw rod (201) is symmetrically provided with two reverse threads, and the outer side of the bidirectional screw rod (201) is connected to two regulating drive plates (202) through the two reverse threads; the front and rear sides of the two regulating drive plates (202) are slidably connected with vertical guide rods (203) fixed inside the strip-shaped slide groove (206); the opposite surfaces of the two regulating drive plates (202) are rotatably connected with four connecting rods (204) through a rotating shaft, and the outer ends of the four connecting rods (204) on the left side and the four connecting rods (204) on the right side are rotatably connected with two fixed grinding discs (205), and each fixed grinding disc (205) is provided with a rectangular slider (207) on the upper and lower sides, and the rectangular slider (207) is slidably connected to the strip-shaped slide groove (206); two annular limit blocks (209) are fixed to the outer side of the bidirectional screw rod (201).

3. A double disc refiner according to claim 1, characterized in that: The inner circumference of the shell cover (4) is provided with two rectangular slide grooves (401) on both sides, and the outer circumference of the shell cover (4) is provided with two rectangular openings (402) on both sides, and the two rectangular openings (402) are respectively connected to the two rectangular slide grooves (401).

4. A double disc refiner according to claim 3, characterized in that: A loading shell (501) is fixedly mounted on the upper part of each of the two shell covers (4), and the two loading shells (501) are respectively located outside the two rectangular openings (402) above the two shell covers (4), and the upper parts of the two loading shells (501) are connected to a loading three-way pipe fitting (5) via a water pipe.

5. A double disc refiner according to claim 3, characterized in that: A material discharge shell (601) is fixedly installed at the lower part of the two shell covers (4), and the two material discharge shells (601) are respectively located outside the two rectangular openings (402) below the two shell covers (4), and the bottoms of the two material discharge shells (601) are connected to a material discharge three-way pipe fitting (6) through a water pipe.

6. A double disc refiner according to claim 1, characterized in that: The anti-loosening mechanism (7) comprises a rectangular sliding shell (701), a rectangular sliding block (702), an anti-loosening tooth block (703), a T-shaped pull rod (704) and a pull rod (705); the rectangular sliding shell (701) is fixedly mounted on the front side of the upper end face of the regulating box (2), and the rectangular sliding block (702) is slidably connected inside the rectangular sliding shell (701); the rear end face of the rectangular sliding block (702) is fixedly connected to two anti-loosening tooth blocks (703), and the front end face of the rectangular sliding block (702) is provided with a tooth block penetrating the front side of the rectangular sliding shell (701). A pulling rod (705) is provided on the wall, the outside of the pulling rod (705) is located inside the rectangular sliding shell (701) and is sleeved with a spring; a rectangular through-hole is provided on the upper end surface of the rectangular sliding shell (701); a T-shaped pulling rod (704) is fixed on the upper end surface of the rectangular sliding block (702), and the T-shaped pulling rod (704) passes through the rectangular through-hole provided on the upper end surface of the rectangular sliding shell (701); when the anti-loosening mechanism (7) is in the anti-loosening state, the rear ends of the two anti-loosening tooth blocks (703) are in close contact with the front side of the outer peripheral surface of the anti-loosening gear (208).

7. A double disc refiner according to claim 6, characterized in that: The auxiliary driving member (8) is arranged at the lower front part of the anti-loosening mechanism (7), and the auxiliary driving member (8) comprises a pedal (801), a vertical slide bar (802), an L-shaped fixing plate (803), a pull rope (804) and a pulley (805). The bottom end surface of the pedal (801) is fixedly connected with four vertical slide bars (802), and the four vertical slide bars (802) are slidably connected to the L-shaped fixing plate (803). 03), a limit block is provided at the lower end of each vertical sliding rod (802), and an L-shaped fixing plate (803) is fixed to the lower front side of the regulating box (2); a pull rope (804) is fixedly connected to the upper end surface of the pedal (801), and the other end of the pull rope (804) is fixedly connected to the front end of the pulling rod (705); a pulley (805) is slidably connected to the outside of the pull rope (804), and the pulley (805) is installed on the upper front side of the regulating box (2).

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