Lead bar granulator

Abstract

A lead bar granulator relates to the technical field of lead granule granulators, and adopts the technical scheme that the lead bar granulator comprises a granulating device and a feeding device, the granulating device comprises a rotating shaft and a plurality of cutter heads, the cutter heads are provided with a plurality of cutters which are centrosymmetric about the central axis of the rotating shaft, and the cutter heads are provided with a plurality of blades which are centrosymmetric about the central axis of the rotating shaft. The cutters on any cutter head and the cutters on other cutter heads are distributed in a staggered manner; the feeding device comprises a pair of feeding rollers rotating relatively and a lead bar guiding device, the axial directions of the feeding rollers are parallel to the rotating shaft, the lead bar guiding device comprises a plurality of guiding channels arranged in parallel, and the guiding channels correspond to the cutter heads respectively. According to the utility model, the cutters on the plurality of cutter heads are distributed in a staggered manner, so that only one cutter and one lead strip are cut on all cutter heads at the same time in the cutting process, the impact force of the cutting operation on the pelletizing device is greatly reduced, and the service life is prolonged; in the lead bar feeding process, the lead bars move along the guide channel, and deflection is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to lead pellet granulator technical field especially relates to a lead bar pelletizer. BACKGROUND

[0002] In the early stage of lead base grid production of lead storage battery, lead powder needs to be used as raw material. At present, one kind of process for manufacturing lead powder is to use a pelletizer to process lead ingot into lead pellet, and then add the lead pellet into a ball mill to rub against each other into lead powder. The pelletizer can adopt a lead pellet granulating device disclosed in CN205587667U, which comprises lead ingot feeding part, lead ingot rolling part, lead belt transfer part, lead belt conveying part, striping part, lead strip conveying part and granulating part arranged in sequence. In the above device, the pelletizer is provided with a plurality of cutter heads in the axial direction of the rotating shaft, and each cutter head is provided with a plurality of cutters in the circumferential direction. When cutting, a plurality of lead strips are cut at the same time, which causes large instantaneous impact force of the granulating part during the working process, further causes short service life of the granulating part, high equipment maintenance cost, and the lead strip may be inclined during feeding, which often causes the shape of lead pellet to be not uniform. SUMMARY

[0003] In view of the problems of excessive impact force when the granulating part cuts the lead strip and non-uniform shape of the lead pellet in the prior art, the utility model provides a lead strip pelletizer.

[0004] The utility model provides the following technical scheme: a kind of lead strip pelletizer, comprising:

[0005] Cutting device, including rotating shaft and a plurality of cutter heads being sequentially arranged on the rotating shaft in the axial direction of the rotating shaft, the cutter head is provided with a plurality of cutters about the center of the axis of the rotating shaft center symmetry, and the cutter on any one cutter head is distributed with the cutter on other cutter head staggered;

[0006] Feeding device, including a pair of opposite rotation feeding rollers and lead strip guide device being arranged between a pair of the feeding rollers, the axial direction of the feeding roller is parallel with the rotating shaft, the lead strip guide device includes a plurality of guide channels being arranged in parallel, the guide channel extends from the side of the feeding roller away from the cutting device to the side of the feeding roller towards the cutting device, and a plurality of the guide channels are respectively corresponding to a plurality of cutter heads.

[0007] Preferably, the rotating shaft is provided with a connecting part, the cross section of the connecting part is regular hendecagon, the cutter head is sleeved on the connecting part, and the cutter head is provided with 9 cutters.

[0008] Preferably, the cutter head includes a plurality of insertion grooves being symmetrical about the center of the axis of the rotating shaft, the cutter is inserted into the insertion groove and bolted with the cutter head.

[0009] Preferably, the lead strip guiding device comprises a square tube surrounded by a bottom plate, a top plate and two side plates, a plurality of insertion tubes extending in the axial direction of the square tube are inserted into the square tube, and the insertion tubes are bolted to the square tube, a plurality of spacings are arranged between adjacent two insertion tubes and between the side plates and adjacent insertion tubes, and the plurality of spacings and the inner cavities of the plurality of insertion tubes jointly form a plurality of guiding channels arranged in parallel; the top and bottom of the square tube and the insertion tubes are provided with avoiding grooves matched with a pair of the feeding rollers.

[0010] Preferably, the guiding channel extends in a direction perpendicular to the rotating shaft.

[0011] The beneficial effects of the utility model are as follows: the cutters on the plurality of cutter discs are distributed in a staggered manner, so that only one cutter on each cutter disc is in shearing with one lead strip at the same time during shearing, the impact force of shearing operation on the pelletizing device is greatly reduced, and the service life is prolonged; and one guiding channel is arranged for each cutter disc, the lead strip is guided to move along the guiding channel during lead strip feeding, and skewing is avoided. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is a three-dimensional schematic view of one embodiment of the pelletizing device.

[0013] Figure 2 It is a front view of one embodiment of the pelletizing device.

[0014] Figure 3 It is a sectional view of one embodiment of the pelletizing device.

[0015] Figure 4 It is a schematic view of one embodiment of the lead strip guiding device.

[0016] Reference signs: 10, pelletizing device; 11, rotating shaft; 12, cutter disc; 13, cutter; 14, insertion slot; 15, connecting part; 20, feeding device; 21, feeding roller; 22, guiding channel; 23, bottom plate; 24, top plate; 25, side plate; 26, insertion tube; 27, avoiding groove. DETAILED DESCRIPTION

[0017] The embodiments of the utility model will be described in more detail below in combination with the drawings and reference signs, so that those skilled in the art can implement them after reading the specification. It should be understood that the specific embodiments described herein are only used to explain the utility model and do not limit the utility model.

[0018] The utility model provides a kind of lead strip pelletizer, including pelletizing device 10 and feeding device 20.

[0019] Please refer to Figures 1-3The cutting device 10 comprises a rotating shaft 11 rotatably connected with the frame and five cutter heads 12 arranged on the rotating shaft 11 in the axial direction of the rotating shaft 11 in sequence. The rotating shaft 11 is drivingly connected with a driving motor, and the cutter heads 12 are rotated by the driving motor. The cutter head 12 is provided with nine cutting knives 13 which are symmetrically arranged about the center of the rotating shaft 11. Specifically, the cutter head 12 comprises nine insertion slots 14 which are symmetrically arranged about the center of the rotating shaft 11, and the cutting knives 13 are inserted into the insertion slots 14 and are bolted with the cutter head 12.

[0020] The cutting knives 13 on any one of the cutter heads 12 are distributed in a staggered manner with the cutting knives 13 on the other cutter heads 12, so that only one cutting knife 13 on all the cutter heads 12 is used to cut one lead strip at the same time during the cutting process, which greatly reduces the impact force on the cutting device caused by the cutting operation and prolongs the service life. In the embodiment, the rotating shaft 11 is provided with a connecting portion 15, the cross section of the connecting portion 15 is a regular eleven-sided polygon, and the cutter head 12 is sleeved on the connecting portion 15. When the cutter head is installed, a plurality of cutter heads can be sleeved on the connecting portion 15 by rotating 32.727° in sequence, so that all the cutting knives are distributed in a staggered manner, as shown in Figure 1 .

[0021] Please refer to Figures 1-4 The feeding device 20 comprises a pair of feeding rollers 21 and a lead strip guiding device arranged between the pair of feeding rollers 21.

[0022] The pair of feeding rollers 21 are rotatably connected with the frame and clamps the lead strip therebetween. One of the feeding rollers is drivingly connected with a motor, and the motor drives the feeding roller to rotate and send the lead strip to the cutting device 10. The specific structure of the feeding roller 21 can refer to the related art.

[0023] The lead strip guiding device includes a square tube surrounded by a bottom plate 23, a top plate 24 and two side plates 25, and the square tube extends from the side of the feeding roller 21 away from the cutting device 10 to the side of the feeding roller 21 facing the cutting device 10. A plurality of grooves are further arranged in the square tube, and an insertion tube 26 is inserted into each groove, and the insertion tube 26 is bolted to the square tube for reinforcement. The two insertion tubes 26 extend in the axial direction of the square tube, and a spacing is arranged between adjacent two insertion tubes 26 and between the side plate 25 and the adjacent insertion tube 26. The three spacings and the inner cavities of the two insertion tubes 26 together form five guiding channels 22 arranged in parallel, and the guiding channels 22 extend from the side of the feeding roller 21 away from the cutting device 10 to the side of the feeding roller 21 facing the cutting device 10, and a plurality of the guiding channels 22 correspond to a plurality of cutter heads 12 respectively. The top and bottom of the square tube and the insertion tube 26 are respectively provided with an avoidance groove 27 matched with the pair of feeding rollers 21.

[0024] The lead strip enters from the end of the guiding channel 22 away from the cutting device 10, and emerges from the other end of the guiding channel 22 under the clamping and conveying of the pair of feeding rollers, thereby completing the feeding to the cutting device 10. The guiding channel 22 plays a guiding role, which can avoid the lead strip from being skewed during feeding. Preferably, the extension direction of the guiding channel 22 is perpendicular to the rotation axis 11.

[0025] The above is one or more embodiments of the present application, which is described in more detail and in more detail, but should not be understood as limiting the scope of the present application. It should be noted that for ordinary skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which are within the scope of the present application. Therefore, the protection scope of the present application should be subject to the appended claims.

Claims

1. A lead strip pelletizing machine, characterized in that, include: A pelletizing device includes a rotating shaft and a plurality of cutter discs arranged sequentially on the rotating shaft along the axial direction of the rotating shaft. Each cutter disc is provided with a plurality of cutters symmetrical about the central axis of the rotating shaft, and the cutters on any one cutter disc are staggered from the cutters on the other cutter discs. The feeding device includes a pair of relatively rotating feeding rollers and a lead strip guide device disposed between the pair of feeding rollers. The axial direction of the feeding rollers is parallel to the rotation axis. The lead strip guide device includes a plurality of parallel guide channels. The guide channels extend from the side of the feeding rollers away from the pelletizing device to the side of the feeding rollers facing the pelletizing device, and the plurality of guide channels correspond to a plurality of cutter discs.

2. The lead strip pelletizing machine according to claim 1, characterized in that, The rotating shaft is provided with a connecting part, the cross-section of which is a regular 10-sided shape. The cutter head is sleeved on the connecting part and is provided with 9 cutters.

3. A lead strip pelletizing machine according to claim 1, characterized in that, The cutter head includes a plurality of slots symmetrically arranged along the central axis of the rotation shaft, and the cutter is inserted into the slots and bolted to the cutter head.

4. A lead strip pelletizing machine according to claim 1, characterized in that, The lead strip guiding device includes a square tube formed by a bottom plate, a top plate, and two side plates. Multiple insertion tubes extending along the axial direction of the square tube are inserted into the square tube, and the insertion tubes are bolted to the square tube. Spacing is provided between adjacent insertion tubes and between the side plates and adjacent insertion tubes. The multiple spacings and the inner cavities of the multiple insertion tubes together form multiple parallel guiding channels. The top and bottom of the square tube and the insertion tubes are provided with clearance grooves that respectively cooperate with a pair of feeding rollers.

5. A lead strip pelletizing machine according to claim 1, characterized in that, The direction of the guide channel is perpendicular to the rotation axis.

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