An alkaline dry battery shell inner spraying treatment line and process

Abstract

The application relates to a spraying treatment line for the inner shell of an alkaline dry battery, which comprises a coating rotating unit, a shaping mechanism arranged on a rack along the rotating direction of the coating rotating unit, and a rejection mechanism arranged on the other side of the coating rotating unit relative to the shaping mechanism; the shaping mechanism comprises an air cavity pipe which blows air along the shell opening of the inner wall of the dry battery shell to the positive electrode, and the air jet area of the air cavity pipe covers the shell opening area of the dry battery shell; the rejection mechanism comprises a first sensor and a rejection unit; the application solves the technical problem that after the steel shell of the alkaline battery is completed with spraying, the alkaline battery steel shell needs to be orderly arranged and output to avoid the graphite milk flowing to the shell opening part in the conveying process, thereby increasing an arrangement process before entering the oven shaping, and the work efficiency is low.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of alkaline dry battery shell, in particular to an alkaline dry battery shell inner spraying treatment line and process. BACKGROUND

[0002] With the rapid development of science and technology, productivity has been greatly improved, and many devices have realized automatic production. At present, there is no uniform technical standard for battery steel shell graphite spraying equipment on the market, which completely belongs to a non-standard device. Each manufacturer develops it according to their own needs, but there are various types, most of which refer to the technology of Hubble spraying line 20 years ago. There are also imported professional graphite spraying machines, but these devices belong to a monopoly technology, and the price is far beyond the actual value.

[0003] The patent document with the patent number CN113145367A discloses a full-automatic alkaline battery steel shell inner coating machine and a spraying method thereof, which comprises a rack, an arrangement feeding mechanism, a spraying mechanism and a control box installed on the rack. A feeding mechanism is installed on one side of the rack, the feeding end of the arrangement feeding mechanism corresponds to the discharge port of the feeding mechanism, the spraying mechanism is arranged at the discharge end of the arrangement feeding mechanism, and the arrangement feeding mechanism, the spraying mechanism and the feeding mechanism are connected to the control box.

[0004] However, in the actual use process, the inventor found that after the alkaline battery steel shell is completed, in order to avoid the graphite milk flowing to the shell opening part during the conveying process, the alkaline battery steel shell needs to be orderly arranged and output, thereby increasing a arranging process before entering the oven for shaping, and the working efficiency is low. SUMMARY

[0005] The purpose of the present application is to solve the technical problems of the prior art, such as the alkaline battery steel shell after completing the spraying, in order to avoid the graphite milk flowing to the shell opening part during the conveying process, the alkaline battery steel shell needs to be orderly arranged and output, thereby increasing a arranging process before entering the oven for shaping, and the working efficiency is low.

[0006] In view of the above technical problems, the technical scheme is as follows: an alkaline dry battery shell inner spraying treatment line, comprising a coating rotating unit, further comprising a shaping mechanism and a rejection mechanism arranged on the rack along the clockwise rotating direction of the coating rotating unit.

[0007] The shaping mechanism comprises a wind cavity pipe, which blows wind along the shell opening of the inner wall of the dry cell shell to the positive electrode, and the jet area of the wind cavity pipe covers the shell opening area of the dry cell shell.

[0008] The rejection mechanism comprises a first sensor for detecting whether the coating rotating unit has dry cell shells after rotating to the positioning station, and a rejection unit for automatically rejecting the dry cell shells in the coating rotating unit for a certain number of positions after receiving the signal of the first sensor.

[0009] As a preferred embodiment, a guide mechanism is arranged along the circumferential direction of the coating rotating unit, which comprises a concave frame installed on the rack and fitted with the outer circumferential surface of the coating turntable, and two sets of symmetrical support steel pipes arranged below the coating turntable.

[0010] The concave frame extends from the spraying mechanism to the position of the air pipe structure, and a compression roller is arranged above the concave frame.

[0011] As a preferred embodiment, the distance between the output end of the wind cavity pipe and the shell opening is 0 < L ≤ 5 cm.

[0012] As a preferred embodiment, the rejection unit comprises a first nozzle arranged obliquely with the air outlet behind the dry cell shell, and a storage box arranged in the blowing output direction of the first nozzle for collecting defective dry cell shells.

[0013] As a preferred embodiment, a conveying track is arranged in the output direction of the coating rotating unit, and the dry cell shells after spraying are conveyed into the drying box through the conveying track for drying work.

[0014] The air outlet pipe of the drying box is connected with a first ventilation pipe communicated with the shaping mechanism and a second ventilation pipe communicated with the rejection mechanism.

[0015] As a preferred embodiment, the shaping mechanism is provided with a spraying mechanism in the front process, which comprises a spray gun and a material shifting unit arranged in front of the spray gun on the rack.

[0016] The material shifting unit comprises a second sensor for detecting whether the dry cell shells on the coating rotating unit are completely output, a third ventilation pipe communicated with the second ventilation pipe, a second nozzle installed on the third ventilation pipe, and a guide plate arranged along the jet direction of the second nozzle.

[0017] As a preferred embodiment, the coating rotating unit comprises a turntable and a rotating roller arranged on the rotating disc, and an adsorption storage space for a single dry cell shell is formed between two adjacent turntables. The turntable is provided with a tiger mouth in the adsorption storage space part, and the tiger mouth is provided with a guide arc along the discharge centrifugal direction.

[0018] As preferred, a discharging mechanism is arranged right above the coating rotating unit, and a plurality of groups of the alkaline dry battery shells are arranged in the discharging bin of the discharging mechanism, and the coating rotating unit sequentially adsorbs and drives the alkaline dry battery to the next station during rotation.

[0019] An inner spraying treatment process of the alkaline dry battery shell comprises the following steps:

[0020] S1, a dry battery shell outputting procedure, the coating rotating unit starts to adsorb a single dry battery shell and transmit it in a clockwise direction;

[0021] S2, a spraying procedure, when the single dry battery shell is transmitted in the rear direction, the spray gun sprays a certain amount of conductive paint into the battery shell, and the dry battery shell continues to transmit in the rear direction, and the shaping mechanism starts to blow the air along the shell opening of the inner wall of the dry battery shell to the positive electrode;

[0022] S3, a detecting procedure, the shaped dry battery shell continues to transmit in the rear direction to the first sensor, when the first sensor detects the dry battery shell, the coating rotating unit continues to drive to the next station; when the first sensor does not detect the dry battery shell, the coating rotating unit stops working, and the valve unit of the second air duct which is opened automatically starts to receive signals and blows a plurality of dry battery shells in front of the empty space into the storage box for collection;

[0023] S4, a drying procedure, the shaped dry battery shell continues to transmit in the rear direction, and when the single dry battery shell is above the conveying track, the coating rotating unit automatically releases the dry battery shell, the dry battery shell falls into the conveying track and is input into the drying box under the guidance of the conveying track to complete the drying work.

[0024] As preferred, in the detecting procedure, the number of the plurality of dry battery shells is 5-10.

[0025] As further preferred, the air blowing force of the air cavity tube is smaller than the air blowing force of the first spray head, and the air blowing force of the air cavity tube is greater than the magnetic attraction force of the coating rotating unit to the dry battery shell.

[0026] The present application has the following beneficial effects:

[0027] (1) In the present application, the air of the air cavity tube is blown along the shell opening of the inner wall of the dry battery shell to the positive electrode, thereby avoiding the reverse stringing of the conductive paint in the dry battery shell under the air flow, preventing the conductive paint from falling into the shell opening of the battery shell, and affecting the sealing effect after the collector is installed later, and the air jet area of the air cavity tube is not less than the shell opening area of the dry battery shell, avoiding the air flow blown into the battery shell being less than the cross-sectional area of the battery shell, thereby the vortex of the air flow occurs and backflow occurs, greatly reducing the defective rate and improving the product quality and enterprise profit.

[0028] (2) The present application is provided with a rejection unit, when the first sensor detects that the position on the coating rotating unit is empty, assuming that the coating rotating unit is empty, under the condition of uneven stress, the front and rear products of the coating rotating unit will shake during transmission, thereby affecting the poor spraying quality, the defective products before and after the empty position need to be tested and rejected in time, avoiding the need to increase manual or intelligent detection of whether the shell opening of the dry battery shell exists conductive paint process, the production time is too long, greatly reducing the production efficiency.

[0029] To sum up, the device has the advantages of simple structure and convenient shaping, and is especially suitable for the technical field of alkaline dry battery shells. BRIEF DESCRIPTION OF DRAWINGS

[0030] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application, and those skilled in the art can obtain other drawings according to these drawings without creative labor.

[0031] Figure 1 It is a structural schematic diagram of the alkaline dry battery shell.

[0032] Figure 2 It is a sectional view schematic diagram of the alkaline dry battery shell.

[0033] Figure 3 It is a structural schematic diagram of the spraying treatment line in the alkaline dry battery shell Figure 1 .

[0034] Figure 4 It is a structural schematic diagram of the spraying treatment line in the alkaline dry battery shell Figure 2 .

[0035] Figure 5 It is a partial structural schematic diagram of the spraying treatment line in the alkaline dry battery shell Figure 1 .

[0036] Figure 6 It is a partial structural schematic diagram of the spraying treatment line in the alkaline dry battery shell Figure 2 .

[0037] Figure 7 It is a structural schematic diagram of the rejection mechanism.

[0038] Figure 8 It is a structural schematic diagram of the coating rotating unit.

[0039] Figure 9 It is a transmission state schematic diagram of the coating rotating unit.

[0040] Figure 10 It is a structural schematic diagram of the guide mechanism.

[0041] Figure 11 This is a schematic diagram of the process for spraying coating inside the casing of an alkaline dry cell battery. Detailed Implementation

[0042] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0043] Example 1

[0044] like Figures 2-3 As shown, an alkaline dry battery casing internal spraying treatment line includes a coating rotation unit 1, a shaping mechanism 2 and a rejection mechanism 3 arranged on a frame 100 along the clockwise rotation direction of the coating rotation unit 1.

[0045] The shaping mechanism 2 includes a wind chamber pipe 21, which blows air along the shell opening of the inner wall of the dry cell housing 200 toward the positive electrode, and the air jet area of ​​the wind chamber pipe covers the shell opening area of ​​the dry cell housing.

[0046] The rejection mechanism 3 includes a first sensor 31 for detecting whether there is a dry battery case 200 on the coating rotation unit 1 after the coating rotation unit 1 rotates to the positioning station, and a rejection unit 32 for automatically rejecting the first few dry battery cases 200 in the empty space of the coating rotation unit 1 after receiving the signal from the first sensor 31.

[0047] In this embodiment, since the conductive paint component is volatile, the air cavity pipe 21 is set to blow air along the shell opening of the inner wall of the dry cell shell 200 towards the positive electrode, thereby preventing the conductive paint inside the dry cell shell 200 from being reversed under the airflow, preventing the conductive paint from falling into the shell opening of the battery shell 200 and affecting the subsequent installation of the current collector. In addition, the jet area of ​​the air cavity pipe 21 is not less than the area of ​​the shell opening 201 of the dry cell shell 200, so as to prevent the airflow blown into the battery shell 200 from being less than the cross-sectional area of ​​the battery shell 200, thereby generating vortexes and backflow of the airflow, greatly reducing the defect rate, improving product quality and corporate profits.

[0048] Furthermore, the distance between the output end of the air cavity pipe 21 and the shell opening 201 is 0 < L ≤ 5 cm.

[0049] Furthermore, such as Figure 5 As shown, the rejection unit 32 includes a first nozzle 321 that is tilted and has its air outlet located behind the dry cell battery case 200, and a storage box 322 located in the blowing output direction of the first nozzle 321 and used to collect defective dry cell battery cases 200.

[0050] In the embodiment, when the infrared ray of the first sensor 31 detects that the coating rotating unit 1 at the position is empty, the coating rotating unit 1 is a rotating wheel, the dry battery shell 200 has a certain margin in the rotating wheel, assuming that the distance between the rotating wheels is just the width of the dry battery shell 200, the dry battery shell 200 becomes all defective products in the test experiment, therefore, since there is a margin, it is assumed that the coating rotating unit 1 is empty, and the front and rear products of the coating rotating unit 1 will shake during transmission under the uneven force condition, thereby affecting the poor spraying quality, and the empty position before and after the empty position need to be tested in time and all the defective products are removed, so as to avoid the need to increase manual or intelligent detection of whether the shell of the dry battery shell 200 exists in the conductive paint process in the later period, the production time is too long, and the production efficiency is greatly reduced.

[0051] In detail, when the infrared ray of the first sensor 31 detects that the coating rotating unit 1 at the position is empty, the dry battery shell which is sprayed is all waste (or a specific number is set by using a counter) to be removed, that is, the coating rotating unit 1 stops working, manual feeding is carried out, and after debugging is completed, the coating rotating unit 1 is started again, and all the defective products are removed according to the number set by the counter.

[0052] It should be noted that the conveying track 4 is provided above the conveying track 4, and the output of the conveying track 4 is inclined to the receiving box 322. The dry battery shell 200 after removal enters the receiving box 322 automatically through the output plate 323.

[0053] Further, as shown in Figures 2-4 , the output direction of the coating rotating unit 1 is provided with a conveying track 4, and the dry battery shell 200 after spraying is conveyed to the drying box 5 through the conveying track 4 to perform drying work;

[0054] The air outlet pipeline 51 of the drying box 5 is connected with the first ventilation pipe 52 which is in communication with the shaping mechanism 2 and the second ventilation pipe 53 which is in communication with the removal mechanism 3.

[0055] In the embodiment, the air in the drying box 5 is directly introduced to the shaping mechanism 2 to complete the shaping work and the removal mechanism 3 to complete the removal work, thereby saving additional power output, reducing production cost, and improving enterprise profit.

[0056] Further, as shown in Figure 6 , the front process of the shaping mechanism 2 is provided with a spraying mechanism 6, and the spraying mechanism 6 includes a spray gun 61 and a material pushing unit 62 arranged on the rack 100 and located in front of the spray gun 61;

[0057] The poking unit 62 comprises a second sensor 63 for detecting whether the battery shell 200 on the coating rotating unit 1 is completely output, a third air duct 64 arranged in communication with the second air duct 53, a second nozzle 65 mounted on the third air duct 64, and a guide plate 66 arranged along the air jet direction of the second nozzle 65.

[0058] In the embodiment, by arranging the poking unit 62 cooperating with the spray gun 61, after the spray gun completes the spraying work, in addition to the defective products being completely removed under the external force blowing, the remaining dry battery shells 200 will be driven by the coating rotating unit 1 at a relatively high speed, even if losing the magnetism, there will be individual dry battery shells 200 not completely falling off and output, continuing to be driven by the coating rotating unit 1 backward, the second sensor 63 detects that there is a dry battery shell 200 on the coating rotating unit 1, that is, the dry battery shell 200 is not a defective product, which can be output to the conveying track 4 by the second nozzle 65 cooperating with the guide plate 66 to continue to be driven into the drying box 5 to complete the drying work, on the one hand, avoiding the dry battery shells 200 after spraying from being secondarily sprayed to cause the defective rate; on the other hand, avoiding the dry battery shells 200 after spraying from occupying the space on the coating rotating unit 1, reducing the production efficiency.

[0059] In addition, a third sensor is arranged on one side of the coating rotating unit 1 for detecting the stop and start of the coating rotating unit 1, when the coating rotating unit 1 stops working, the third sensor transmits a signal to the spraying mechanism 6, and the spray gun 61 of the spraying mechanism 6 stops working, when the coating rotating unit 1 rotates again, the third sensor transmits a signal to the spraying mechanism 6, and the spray gun 61 of the spraying mechanism 6 rotates according to the preset beat cooperating with the rotation of the coating rotating unit 1, thereby ensuring the normal spraying work.

[0060] It should be noted that the spray gun 61 is a prior art, and its specific working technology and working principle are not described here; in addition, the coating rotating unit 1 has magnetism, and the steel shell is driven by using the magnetism.

[0061] Further, a guide mechanism 9 is arranged along the circumferential direction of the coating rotating unit 1, the guide mechanism 9 comprises a concave frame 91 mounted on the rack and arranged in abutment with the outer circumferential surface of the coating rotating unit 1, and two groups of symmetrical support steel pipes 92 arranged below the coating rotating unit 1.

[0062] The concave frame 91 extends from the spraying mechanism 6 to the position of the air duct structure, and a compression roller 93 is arranged above the concave frame 91.

[0063] In this embodiment, by setting a concave frame 91 in conjunction with a pressure roller 93, the pressure roller 93 presses against the concave frame 91. When the coating rotation unit 1 rotates, the dry battery casing 200 on it is less likely to shift or shake during the spraying and blower shaping operations, thus ensuring precise spraying and blower operation and reducing the defect rate.

[0064] In detail, the removal unit 32 is located between the supporting steel pipe 92 and the spraying mechanism 2, that is, after the dry cell housing 200 has completed the drying and pre-forming work. Because the force on the rotating wheel between the empty space and the existing dry cell housing 200 is uneven and the transmission frequency is inconsistent, the air in the drying oven is drawn out to blow off the several groups of dry cell housing 200 after the empty space. The air force is greater than the magnetic attraction of the coating rotation unit 1 on the dry cell housing 200.

[0065] In addition, by setting up the support steel pipe 92, on the one hand, the qualified dry cell battery shell 200 is supported, so that it can fall off smoothly from the coating rotating unit 1 to the conveyor track after losing its magnetism; on the other hand, the unqualified dry cell battery shell 200 will fall or deviate under the blowing force, and the dry cell battery shell 200 that deviates and does not fall off completely will fall off completely and be rejected under the guidance of the support steel pipe 92.

[0066] Furthermore, such as Figure 7 As shown, the coating rotation unit 1 includes a turntable 11 and a rotating roller 12 rotatably disposed on the turntable. An adsorption and storage space 13 for a single dry cell battery case 200 is formed between two adjacent turntables 11. The turntable 11 is provided with a tiger's mouth 14 in the part of the adsorption and storage space 13, and the tiger's mouth 14 is provided with a guide arc 15 along the centrifugal discharge direction.

[0067] In this embodiment, by setting the guide arc 15, the dry cell casing 200, which has lost its magnetic attraction, is output smoothly and regularly along the centrifugal direction.

[0068] Furthermore, such as Figure 2 As shown, a discharge mechanism 7 is provided directly above the coating rotation unit 1. Several groups of alkaline dry battery shells 200 are placed in the discharge hopper 71 of the discharge mechanism 7. During the rotation process, the coating rotation unit 1 adsorbs and transmits the dry battery shells 200 one by one to the next station.

[0069] Example 2

[0070] like Figure 8 As shown, components that are the same as or corresponding to those in Embodiment 1 are referred to using the same reference numerals as in Embodiment 1. For simplicity, only the differences from Embodiment 1 are described below. The difference between Embodiment 2 and Embodiment 1 is as follows:

[0071] like Figure 8 As shown, the alkaline dry battery casing internal spraying process includes the following steps:

[0072] S1, dry battery shell output procedure one by one, coating rotation unit 1 starts to catch single dry battery shell 200 and transmits it backward along clockwise direction;

[0073] S2, spraying procedure, when single dry battery shell 200 transmits backward, spray gun 61 sprays a certain amount of conductive paint into the battery shell, and then dry battery shell 200 continues to transmit backward, and shaping mechanism 2 starts to blow air along the shell opening of the inner wall of battery shell 200 to the positive electrode;

[0074] S3, detection procedure, after the shaping of dry battery shell 200, it continues to transmit backward to first sensor 31, when first sensor 31 detects dry battery shell 200, coating rotation unit 1 continues to drive to the next station; when first sensor 31 does not detect dry battery shell 200, coating rotation unit 1 stops working, valve unit of control second air duct 53 opens and receives signal automatically, and then blows several dry battery shells 200 in front of the empty position into storage box 322 for collection;

[0075] S4, drying procedure, after the shaping of dry battery shell 200, it continues to transmit backward, when single dry battery shell 200 is above conveying track 4, coating rotation unit 1 automatically releases dry battery shell 200, dry battery shell 200 falls into conveying track 4 and enters into drying box 5 under the guidance of conveying track 4 to complete the drying work.

[0076] It is worth mentioning that the main components of the conductive paint for inkjet include graphite powder, butanone or alcohol, the end of the shell opening of dry battery shell 200 cannot have graphite milk attached, the shell opening needs to be plugged with a current collector with a sealing ring, the current collector is glued to the shell opening of dry battery shell 200, if part of the conductive paint (graphite milk) flows to the shell opening part during the conveying process, then when the sealing glue is coated, there will be a gap in the sealing process of sealing ring-sealing glue-steel shell opening, which will easily cause the internal electrolyte to leak along the graphite milk through capillary action, affect the sealing effect after the installation of the current collector, and cause the problem of liquid leakage and alkaline climbing, which will lead to a high product scrap rate, at the same time, the air volume and temperature are also used for pre-drying of the conductive paint, which greatly improves the quality of the product and reduces the scrap rate;

[0077] The other butanone or alcohol is volatile, so the traditional process is automatically sequenced after spraying to avoid the dry battery shell 200 messy transmission leading to the conductive paint backflow, flow to the dry battery shell 200 shell mouth end sealing place, the purpose is to dry the conductive paint in the dry battery shell 200 before the state is stable, because the roller 12 has a certain amount of slack and shaking amount during installation, for the active rotation of the dry battery shell 200, so the existing equipment needs to output the dry battery shell 200 after spraying quickly, that is, the inclined guide plate transmission is input to the horizontal transmission track, but the product rejection rate is still high, ranging from 500-600PPM, but the technical solution cancels the traditional automatic sequencing process, and then the shaping can be driven to the bottom end of the coating rotating unit 1, and falls on the bottom transmission track 4, and quickly enters the drying oven 5, the rejection rate is only 5-6PPM, and the automatic sequencing process is saved, the dry battery shell 200 deviation, sequencing and plugging time is saved, the time of the dry battery shell 200 after spraying into the drying oven 5 is greatly shortened, so that the drying and shaping work is completed as soon as possible and the product quality and work efficiency are improved.

[0078] Further, in the detection process, the number of dry battery shells 200 is 5-10.

[0079] Further, the air blowing force of the air cavity pipe is less than the air blowing force of the first spray head, and the air blowing force of the air cavity pipe is greater than the magnetic attraction force of the coating rotating unit to the dry battery shell.

[0080] In the embodiment, the air blowing force of the air cavity pipe is slightly less than the air blowing force of the first spray head, and the air blowing force of the air cavity pipe is slightly greater than the magnetic attraction force of the coating rotating unit to the dry battery shell, so that the dry battery shell 200 can be completely separated from the coating rotating unit 1.

[0081] In the description of the present application, it should be understood that the terms "front and back", "left and right" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or components referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore cannot be understood as a limitation on the invention.

[0082] Of course, in the present technical solution, those skilled in the art should understand that the term "one" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of one element can be one, and in another embodiment, the number of the element can be multiple, and the term "one" cannot be understood as a limitation on the number.

[0083] The above merely describes preferred specific embodiments of the present application, but the protection scope of the present application is not limited thereto, and any changes or replacements that can be easily thought of by those skilled in the art under the technical hints of the present application should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A coating line for the inner casing of an alkaline dry cell battery, comprising a coating rotation unit, characterized in that, It also includes a shaping mechanism disposed on the frame along the rotation direction of the coating rotating unit and a rejection mechanism disposed on the other side of the coating rotating unit relative to the shaping mechanism; The shaping mechanism includes a wind chamber tube, which blows air along the opening of the inner wall of the dry cell battery casing toward the positive end, and the air outlet of the wind chamber tube completely covers the opening of the dry cell battery casing. The rejection mechanism includes a first sensor for detecting whether there is a dry battery case on the coating rotation unit after the coating rotation unit rotates to the positioning station, and a rejection unit for automatically rejecting the first few dry battery cases in the empty space of the coating rotation unit after receiving the signal from the first sensor. The output direction of the coating rotation unit is provided with a conveyor track. After the dry battery shell is coated, it enters the drying box through the conveyor track for drying. The air outlet pipe of the drying box is connected to a first ventilation pipe that is connected to the shaping mechanism and a second ventilation pipe that is connected to the rejection mechanism. The preceding process of the shaping mechanism is provided with a spraying mechanism, which includes a spray gun and a material feeding unit disposed on the frame and located in front of the spray gun. The material feeding unit includes a second sensor for detecting whether the dry battery casing on the coating rotation unit is fully output, a third ventilation pipe connected to the second ventilation pipe, a second nozzle mounted on the third ventilation pipe, and a guide plate arranged along the jet direction of the second nozzle. The coating rotating unit includes a turntable and a rotating roller rotatably mounted on the turntable. An adsorption and storage space for a single dry cell battery case is formed between two adjacent turntables. The turntable has a "tiger mouth" in the adsorption and storage space and a guide arc is provided in the tiger mouth along the centrifugal discharge direction.

2. The alkaline dry battery casing internal spraying treatment line according to claim 1, characterized in that, It also includes a guide mechanism arranged along the circumference of the coating rotation unit. The guide mechanism includes a concave frame mounted on the frame and fitted with the outer circumferential surface of the coating rotation unit, and two sets of symmetrical support steel pipes arranged below the coating rotation unit. The concave frame extends from the spraying mechanism to the location of the air duct structure, and a pressure roller is provided above the concave frame.

3. The alkaline dry battery casing internal coating treatment line according to claim 2, characterized in that, The rejection unit includes a first nozzle that is tilted and has its air outlet located behind the opening of the dry cell battery casing, and a storage box located in the air output direction of the first nozzle for collecting defective dry cell battery casings.

4. The alkaline dry battery casing internal spraying treatment line according to claim 1, characterized in that, A discharge mechanism is located directly above the coating rotation unit. Several groups of alkaline dry battery cases are placed in the discharge hopper of the discharge mechanism. During the rotation process, the coating rotation unit adsorbs and transmits the dry battery cases one by one to the next station.

5. A process for an alkaline dry cell battery casing internal coating line according to any one of claims 1-4, characterized in that, Includes the following steps: S1, Dry cell battery case output process: The coating rotation unit starts to receive the individual dry cell battery case and transport it clockwise. S2, Spraying process: When a single dry cell battery case is conveyed backward, the spray gun sprays a fixed amount of conductive paint into the battery case. The dry cell battery case continues to be conveyed backward, and the shaping mechanism is activated, blowing air along the opening of the inner wall of the dry cell battery case towards the positive electrode. S3, Inspection process: After the dry cell battery case is shaped, it continues to be transported to the first sensor. When the first sensor detects the dry cell battery case, the coating rotation unit continues to move to the next station. When the first sensor does not detect the dry cell battery case, the coating rotation unit stops working. The valve unit that controls the opening of the second ventilation pipe receives the signal and automatically starts to blow several dry cell battery cases in front of the empty space into the collection box for collection. S4, Drying process: After the dry cell battery case has been shaped, it continues to be conveyed backward. After a single dry cell battery case is above the conveyor track, the coating rotating unit automatically releases the dry cell battery case. The dry cell battery case falls into the conveyor track and is then fed into the drying chamber under the guidance of the conveyor track to complete the drying process.

6. The process for an alkaline dry battery casing internal coating treatment line according to claim 5, characterized in that, In the testing process, the number of dry cell battery casings is 5-10.

7. The process for an alkaline dry battery casing internal coating treatment line according to claim 5, characterized in that, The airflow force of the air chamber tube is less than that of the first nozzle, and the airflow force of the air chamber tube is greater than the magnetic attraction force of the coating rotation unit on the dry cell casing.

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