A storage device and chip resistor processing equipment

Abstract

The application discloses a kind of storage device and sheet resistance processing equipment, it is related to resistance production and processing equipment technical field.The storage device includes base and the bin and lifting mechanism of setting on base, bin includes back plate and two parallelly arranged side plates, back plate and side plate are all perpendicular to base, back plate is equipped with multiple side plate installation sites, two side plates are respectively fixed on side plate installation site, lifting mechanism includes lifting drive assembly and the material plate connected with lifting drive assembly, material plate is parallel with base and is arranged between two side plates, material plate moves in the direction perpendicular to base under the drive of lifting drive assembly.The side plate of bin in the above-mentioned storage device is detachably mounted on back plate, by fixing side plate on different installation sites, so that bin has multiple sizes.Material plate is below sheet material in bin, under the control of lifting drive assembly, carries sheet material to complete lifting action, realizes the automatic feeding of different specifications sheet material.

Description

Technical Field

[0001] This invention relates to the field of resistor production and processing equipment technology, and more specifically, to a material storage device and a chip resistor processing equipment. Background Technology

[0002] With the rapid development of the computer, communication, and consumer electronics industries, their important components, such as surface mount resistors, are constantly being upgraded. Surface mount resistors are becoming smaller and more diverse in size, leading to increasing functional demands on their production and processing equipment. This is driving the development of automated equipment towards intelligence, multi-functionality, and versatility. As for the material storage devices within surface mount resistor production and processing equipment, they must also be able to meet the ever-increasing production and functional requirements of customers for surface mount resistors of different specifications.

[0003] Existing equipment often only supports a certain size of sheet material or only meets the needs of certain customers. When changing to different sizes of sheet material, it is often necessary to replace the entire hopper, which is not only time-consuming but also costly. Summary of the Invention

[0004] The purpose of this invention is to provide a material storage device and a chip resistor processing equipment to solve the technical problem that the material storage device in the prior art cannot meet the automatic feeding of chip resistors of different specifications.

[0005] The embodiments of the present invention are implemented as follows:

[0006] In one aspect of the present invention, a material storage device is provided, including a base and a hopper and a lifting mechanism disposed on the base. The hopper includes a rear plate and two parallel side plates, both of which are perpendicular to the base. The rear plate is provided with a plurality of side plate mounting positions, and the two side plates are respectively fixed in the side plate mounting positions. The lifting mechanism includes a lifting drive assembly and a material support plate connected to the lifting drive assembly. The material support plate is parallel to the base and disposed between the two side plates. The material support plate moves in a direction perpendicular to the base under the drive of the lifting drive assembly.

[0007] Optionally, the aforementioned hopper also includes a stop block parallel to the rear plate. The stop block is used to block the material pieces in the hopper. Multiple stop block mounting positions are provided on the side plate along the direction parallel to the base, and the stop block is fixed on the stop block mounting position.

[0008] Optionally, the base is provided with a hopper mounting groove and a guide block located at the edge of the hopper mounting groove. The guide block has an inclined surface on the side facing the hopper mounting groove, and the side of the inclined surface closer to the hopper mounting groove is lower than the side away from the hopper mounting groove.

[0009] Optionally, the above-mentioned stop includes two blocks, which are respectively fixed on two side plates and the distance between the two blocks and the rear plate is equal, and the material support plate is located between the two blocks.

[0010] Optionally, the lifting driving assembly comprises a screw rod, a sliding block matched with the screw rod, and a motor driving the screw rod to rotate, the screw rod is perpendicular to the base, and the material supporting plate is fixedly connected with the sliding block.

[0011] Optionally, the material storage device further comprises a fixing plate arranged on the base, and the back plate is connected with the fixing plate through a magnetic attraction mechanism.

[0012] Optionally, the material storage device further comprises an edge finishing mechanism arranged on the fixing plate, the edge finishing mechanism comprises a pneumatic cylinder and a push block connected with the pneumatic cylinder, and the push block is located above the back plate and reciprocates in a direction perpendicular to the back plate.

[0013] Optionally, the material storage device further comprises a first detection assembly arranged on the fixing plate, and the first detection assembly is used for detecting the position of the top layer of material pieces in the material bin.

[0014] Optionally, the material storage device further comprises an anti-piling mechanism arranged on the fixing plate, and the anti-piling mechanism comprises a gas blowing nozzle and a gas source connected with the gas blowing nozzle, and a gas blowing port of the gas blowing nozzle is located above the back plate and blows gas towards the inside of the material bin.

[0015] In another aspect of the embodiment of the present application, a material piece processing device is provided, which comprises a material taking device, a processing device and the material storage device as described above, and the material taking device is used for transferring the material pieces between the material storage device and the processing device.

[0016] The beneficial effects of the embodiment of the present application include:

[0017] In one aspect of the embodiment of the present application, a material storage device is provided, which comprises a base, a material bin and a lifting mechanism arranged on the base, the material bin comprises a back plate and two parallel arranged side plates, the back plate and the side plates are both perpendicular to the base, a plurality of side plate mounting positions are arranged on the back plate, the two side plates are respectively fixed on the side plate mounting positions, and the lifting mechanism comprises a lifting driving assembly and a material supporting plate connected with the lifting driving assembly, the material supporting plate is parallel to the base and arranged between the two side plates, and the material supporting plate moves in a direction perpendicular to the base under the driving of the lifting driving assembly. In the material storage device, the side plates of the material bin are detachably mounted on the back plate, different mounting positions are fixed with the side plates, so that the material bin has a plurality of combination modes, each combination mode corresponds to a material piece of a certain specification, so that a plurality of specifications of material pieces can be compatible. The material supporting plate is located below the material pieces in the material bin, carries the material pieces and completes the lifting action under the control of the lifting driving assembly, and automatic feeding of material pieces of different specifications is realized.

[0018] Another aspect of the embodiment of the present application provides a chip resistor processing device, comprising a material taking device, a processing device and the storage device of any of the above, the material taking device is used for transferring the material sheet between the storage device and the processing device. The chip resistor processing device can be compatible with multiple specifications of material sheets, and automatic feeding of multiple specifications of material sheets is realized. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can also be obtained without creative labor on the basis of these drawings.

[0020] Figure 1 The structure diagram of the storage device provided by the embodiment of the present application is shown in the figure.

[0021] Figure 2 The structure diagram of the material bin in the storage device provided by the embodiment of the present application is shown in the figure.

[0022] Figure 3 The structure diagram of the base and the fixed plate in the storage device provided by the embodiment of the present application is shown in the figure.

[0023] Figure 4 The structure diagram of the lifting mechanism in the storage device provided by the embodiment of the present application is shown in the figure.

[0024] Figure 5 The structure diagram of the edge trimming mechanism and the anti-stacking mechanism in the storage device provided by the embodiment of the present application is shown in the figure.

[0025] Figure 6 The material taking process of the chip resistor processing device provided by the embodiment of the present application is shown in the figure.

[0026] Figure 7 The material feeding process of the chip resistor processing device provided by the embodiment of the present application is shown in the figure.

[0027] Figure: 100-Storage device; 110-Base; 111-Material bin mounting groove; 112-Guide block; 1121-Inclined surface; 113-Groove; 120-Material bin; 121-Back plate; 1211-Side plate mounting position; 1212-Through hole; 122-Side plate; 1221-Stop block mounting position; 123-Stop block; 130-Lifting mechanism; 131-Screw; 132-Slider; 133-Motor; 134-Material supporting plate; 140-Fixed plate; 141-Magnetic adsorption mechanism; 150-Edge trimming mechanism; 151-Cylinder; 152-Push block; 160-First detection assembly; 170-Anti-stacking mechanism; 171-Blowing nozzle; 180-Second detection assembly; 200-Material sheet. DETAILED DESCRIPTION

[0028] In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some but not all of the embodiments of the present application. The components of the embodiments of the present application described and shown in the drawings can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but merely represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0029] It should be noted that: similar reference numerals and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

[0030] In the description of the present application, it should be noted that the terms "center", "inner", "outer" 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 indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. The terms "arrangement", "installation", "connection", "connection" should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication between two elements inside. For those of ordinary skill in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0031] Please refer to Figure 1 and Figure 2 , the present embodiment provides a storage device 100, which comprises a base 110, a stock bin 120 and a lifting mechanism 130 arranged on the base 110, the stock bin 120 comprises a back plate 121 and two parallel arranged side plates 122, the back plate 121 and the side plates 122 are perpendicular to the base 110, the back plate 121 is provided with a plurality of side plate mounting positions 1211, the two side plates 122 are respectively fixed on the side plate mounting positions 1211, the lifting mechanism 130 comprises a lifting driving assembly and a material supporting plate 134 connected with the lifting driving assembly, the material supporting plate 134 is parallel to the base 110 and is arranged between the two side plates 122, the material supporting plate 134 moves in the direction perpendicular to the base 110 under the driving of the lifting driving assembly.

[0032] The bin 120 is used for containing the material sheet 200, and includes a side plate 122 and a back plate 121. The side plate 122 is detachably mounted on the back plate 121. The back plate 121 has a plurality of side plate mounting positions 1211. By fixing the side plate 122 on different side plate mounting positions 1211, the bin 120 has a plurality of combination modes, each of which corresponds to a material sheet 200 of a certain specification, so as to be compatible with a plurality of specifications of the material sheet 200. The material supporting plate 134 is located below the material sheet 200 in the bin 120, and carries the material sheet 200 to complete the lifting action under the control of the lifting driving assembly, so as to realize automatic feeding of the material sheet 200 of different specifications. When the bin 120 is disassembled, the material supporting plate 134 will be lowered to the bottom and will not block the bin 120, facilitating disassembly. The side of the bin 120 has an opening, so as to facilitate real-time observation of the material in the bin 120.

[0033] It should be understood that the back plate 121 has a plurality of side plate mounting positions 1211 on both sides of the plate surface, and each side plate mounting position 1211 is used for mounting one side plate 122. The plurality of side plate mounting positions 1211 are parallel to each other, and the distance between the adjacent two side plate mounting positions 1211 depends on the size of the material sheet 200 to be contained. For example, the commonly used specifications of the material sheet 200 are 50mm x 50mm and 50mm x 60mm. In order to simultaneously accommodate the material sheets 200 of the two specifications, the distance between the adjacent two side plate mounting positions 1211 on one side can be 10mm. When the material sheet 200 of 50mm x 50mm is changed to the material sheet 200 of 50mm x 60mm, only one side plate 122 needs to be mounted on the adjacent side plate mounting position 1211.

[0034] Optionally, the side plate mounting position 1211 includes a plurality of through holes 1212, and the side plate 122 is provided with a threaded hole corresponding to each of the plurality of through holes 1212. A bolt is sequentially inserted through the through hole 1212 and the threaded hole to fix the side plate 122 on the back plate 121.

[0035] Optionally, the bin 120 includes a plurality of bins 120, and the plurality of bins 120 are used for containing different types of material sheets 200. For example, the bin 120 includes three bins 120. One bin 120 is used for containing the material sheet 200 before processing, and the other two bins 120 are used for containing the qualified material sheet 200 and the unqualified material sheet 200 after processing, respectively.

[0036] In summary, the above-mentioned storage device 100 comprises a base 110, a hopper 120 arranged on the base 110, and a lifting mechanism 130. The hopper 120 comprises a rear plate 121 and two parallel side plates 122, both of which are perpendicular to the base 110. The rear plate 121 is provided with a plurality of side plate mounting positions 1211, and the two side plates 122 are fixed on the side plate mounting positions 1211, respectively. The lifting mechanism 130 comprises a lifting driving assembly and a material supporting plate 134 connected with the lifting driving assembly. The material supporting plate 134 is parallel to the base 110 and arranged between the two side plates 122. The material supporting plate 134 moves in a direction perpendicular to the base 110 under the driving of the lifting driving assembly. The side plates 122 of the hopper 120 in the above-mentioned storage device 100 are detachably mounted on the rear plate 121. By fixing the side plates 122 on different mounting positions, the hopper 120 has multiple combination modes, each of which corresponds to a specification of the material sheet 200, so that multiple specifications of the material sheet 200 can be compatible. The material supporting plate 134 is located below the material sheet 200 in the hopper 120 and carries the material sheet 200 to complete the lifting action under the control of the lifting driving assembly, thereby realizing the automatic feeding of different specifications of the material sheet 200.

[0037] To further limit the material sheet 200 in the hopper 120, the hopper 120 optionally comprises a stop block 123 parallel to the rear plate 121. The stop block 123 is used to block the material sheet 200 in the hopper 120. The side plate 122 is provided with a plurality of stop block mounting positions 1221 in a direction parallel to the base 110, and the stop block 123 is fixed on the stop block mounting position 1221.

[0038] The stop block 123, together with the rear plate 121 and the two side plates 122, forms an accommodation space. The material sheet 200 is stacked in the accommodation space and moves in the longitudinal direction of the hopper 120 under the support of the material supporting plate 134. Meanwhile, to ensure that the hopper 120 can be adapted to multiple specifications of the material sheet 200, the side plate 122 is further provided with a plurality of stop block mounting positions 1221. By adjusting the mounting position of the stop block 123 on the side plate 122, the size of the accommodation space inside the hopper 120 can be changed. The structure and arrangement of the stop block mounting position 1221 can be the same as that of the side plate mounting position 1211, which will not be described herein.

[0039] Optionally, the stop block 123 comprises two stop blocks 123, which are fixed on the two side plates 122 and have an equal distance from the rear plate 121. The material supporting plate 134 is located between the two stop blocks 123.

[0040] The two stop blocks 123 are respectively fixed on the two side plates 122. A gap exists between the two stop blocks 123, so that the material sheet 200 inside the hopper 120 is exposed to facilitate the observation of the material in the hopper 120 at any time. Meanwhile, the distance between the two stop blocks 123 and the rear plate 121 is equal, which ensures that the two stop blocks 123 can simultaneously limit the material sheet 200, and ensures that the material sheet 200 will not be deflected or dumped when moving inside the hopper 120. In addition, the gap between the two stop blocks 123 also ensures that the stop block 123 will not interfere with the material supporting plate 134, which facilitates the material supporting plate 134 to carry the material sheet 200 to move up and down in the hopper 120.

[0041] Please refer to Figure 1 and Figure 3 Optionally, the base 110 is provided with a hopper mounting groove 111 and a guide block 112 located at the edge of the hopper mounting groove 111. The side of the guide block 112 facing the hopper mounting groove 111 is provided with an inclined surface 1121. The side of the inclined surface 1121 close to the hopper mounting groove 111 is lower than the side away from the hopper mounting groove 111.

[0042] The setting of the hopper mounting groove 111 ensures the stability of the installation of the hopper 120 on the base 110, and also plays a limiting role for the hopper 120. After the hopper 120 is assembled, it gradually descends from above the base 110 into the hopper mounting groove 111. The guide block 112 is arranged around the hopper mounting groove 111, and the inclined surface 1121 is arranged on the guide block 112. The guide block 112 can guide the hopper 120 during the descending process of the hopper 120 and the replacement process of the hopper 120, reduce the operation difficulty of installing and replacing the hopper 120, improve the installation precision and speed, and make the entire hopper 120 can be quickly disassembled and assembled, greatly reducing the working hours consumed by replacing the material, and improving the production efficiency.

[0043] For example, the guide block 112 includes three guide blocks 112, which are respectively arranged corresponding to the rear plate 121 and the two side plates 122 of the hopper 120, and the whole is in U shape. At the same time, it will not block the material sheet 200 in the hopper 120, and also reserves space for the arrangement of the material supporting plate 134, avoiding interference with the movement of the material supporting plate 134.

[0044] Please refer to Figure 1 and Figure 4 Optionally, the lifting driving assembly includes a lead screw 131, a sliding block 132 matched with the lead screw 131, and a motor 133 driving the lead screw 131 to rotate. The lead screw 131 is perpendicular to the base 110, and the material supporting plate 134 is fixedly connected with the sliding block 132.

[0045] The motor 133 and the screw rod 131 are installed on the base 110, and the screw rod 131 is arranged perpendicularly to the base 110. When the motor 133 drives the screw rod 131 to rotate, the sliding block 132 cooperating with the screw rod 131 moves up and down along the screw rod 131, and the sliding block 132 drives the material supporting plate 134 to realize the lifting movement.

[0046] Please refer to Figure 3 Optionally, the bottom of the material bin installation slot 111 is further provided with a groove 113 for accommodating the material supporting plate 134. When the material bin 120 is disassembled, the material supporting plate 134 will be lowered into the groove 113 and will not block the material bin 120, facilitating the disassembly and assembly of the material bin 120.

[0047] Please refer to Figure 1 and Figure 3 Optionally, the material storage device 100 further comprises a fixing plate 140 arranged on the base 110, and the rear plate 121 is connected with the fixing plate 140 through a magnetic attraction mechanism 141.

[0048] The fixing plate 140 is arranged perpendicularly on the base 110, and the material bin 120 is fixed on the fixing plate 140 through magnetic attraction to prevent the material bin 120 from toppling. In the embodiment, the structure of the magnetic attraction mechanism 141 is not limited, as long as it can ensure the stable connection between the material bin 120 and the fixing plate 140 and facilitate disassembly. For example, the magnetic attraction mechanism 141 comprises a magnet and a steel sheet, one of which is arranged on the fixing plate 140 and the other is arranged on the rear plate 121 of the material bin 120. Alternatively, the magnetic attraction mechanism 141 comprises two magnets that attract each other, one of which is arranged on the fixing plate 140 and the other is arranged on the rear plate 121 of the material bin 120.

[0049] Please refer to Figure 1 and Figure 5 Optionally, the material storage device 100 further comprises an edge aligning mechanism 150 arranged on the fixing plate 140, and the edge aligning mechanism 150 comprises a pneumatic cylinder 151 and a push block 152 connected with the pneumatic cylinder 151, the push block 152 being located above the rear plate 121 and reciprocating in a direction perpendicular to the rear plate 121.

[0050] In order to facilitate the feeding of the material sheet 200, the accommodating space inside the material bin 120 is actually slightly larger than the size of the material sheet 200, and the edge aligning mechanism 150 is used to push the material sheet 200 to fit the inner wall of the material bin 120 before each time of taking material, so as to realize the preliminary positioning of the material sheet 200 and ensure that the positions of the material sheets 200 grabbed are roughly the same. Specifically, the edge aligning mechanism 150 comprises the pneumatic cylinder 151 and the push block 152 connected with each other, the pneumatic cylinder 151 extends to drive the push block 152 to push the material sheet 200 to the inner wall of the material bin 120, and then the pneumatic cylinder 151 retracts to drive the push block 152 to reset and separate from the material sheet 200.

[0051] Please refer toFigure 1 and Figure 3 Optionally, the storage device 100 further comprises a first detection assembly 160 arranged on the fixed plate 140, the first detection assembly 160 being configured to detect the position of the top layer of the material sheet 200 in the material bin 120.

[0052] The first detection assembly 160 is configured to detect the position of the material sheet 200 in real time, and after the material is taken out or put into the material bin 120, the uppermost material sheet 200 in the material bin 120 is always kept at a preset height (i.e. the height when the manipulator takes out the material). For example, the first detection assembly 160 is a reflection sensor, the emitting end and the receiving end of the reflection sensor are respectively arranged on the two sides of the material bin 120, the emitting end emits red light or infrared light, when the top layer of the material sheet 200 is at the preset position, the light is cut off, when the top layer of the material sheet 200 is below the preset position, the light is received by the receiving end, a signal is sent to the controller, and the controller controls the lifting driving assembly to drive the material supporting plate 134 to move upward, so that the material sheet 200 is lifted up.

[0053] Optionally, the storage device 100 further comprises an anti-stacking mechanism 170 arranged on the fixed plate 140, the anti-stacking mechanism 170 comprising a gas blowing nozzle 171 and a gas source connected with the gas blowing nozzle 171, the gas blowing nozzle 171 being arranged above the rear plate 121 and blowing gas towards the inside of the material bin 120.

[0054] When the material sheet 200 is very thin, it may be adsorbed together due to static electricity or other reasons, and when the top layer of the material sheet 200 is grabbed, the adjacent material sheet 200 may also be grabbed. Therefore, during the grabbing process, when the material sheet 200 is lifted to the same height as the anti-stacking mechanism, the anti-stacking mechanism 170 blows gas to prevent multiple material sheets from being stuck together and grabbed.

[0055] In order to determine whether the material sheet 200 is at the same height as the anti-stacking mechanism 170, the storage device 100 further comprises a second detection assembly 180 arranged on the fixed plate 140, the height of the second detection assembly 180 being the same as that of the anti-stacking mechanism 170, when the second detection assembly 180 detects the material sheet 200, the anti-stacking mechanism 170 blows gas to the material sheet 200.

[0056] The embodiment also provides a chip resistor processing device, which comprises the storage device 100, a taking-out device and a processing device, the taking-out device being configured to transfer the material sheet 200 between the storage device 100 and the processing device. The chip resistor processing device can be compatible with multiple specifications of the material sheet 200, and automatic feeding of multiple specifications of the material sheet 200 can be realized.

[0057] In the foregoing description of the storage device 100, the working mode and working principle of the storage device 100 when arranged on the chip resistor processing device have been described in detail, and will not be repeated here.

[0058] Please refer to Figure 6 and Figure 7 The operation flow of the chip resistor processing device is as follows: when taking out the material, the first detection assembly 160 in the storage device 100 detects the position of the top layer of the material sheet 200, the lifting driving assembly drives the material supporting plate 134 to adjust the position of the top layer of the material sheet 200 to the preset height, the edge adjusting mechanism 150 adjusts the position of the material sheet 200, the material sheet 200 is taken out by the taking device and lifted to the same height as the second detection assembly 180, the anti-stacking mechanism 170 blows the material sheet 200, and the taking device delivers the material sheet 200 to the processing device for processing. When putting back the material, the taking device puts the processed material sheet 200 back to the other material bin 120 of the storage device 100, the first detection assembly 160 detects the position of the top layer of the material sheet 200, the lifting driving assembly drives the material supporting plate 134 to adjust the position of the top layer of the material sheet 200, and the putting back is completed.

[0059] The above only describes the preferred embodiments of the present application and is not used to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A storage device, characterized by The application relates to a material storage device, which comprises a base, a material bin and a lifting mechanism, the material bin comprises a back plate and two parallel side plates, the back plate and the side plates are perpendicular to the base, a plurality of side plate mounting positions are arranged on the back plate, the two side plates are fixed on the side plate mounting positions respectively, the lifting mechanism comprises a lifting driving assembly and a material supporting plate connected with the lifting driving assembly, the material supporting plate is parallel to the base and is arranged between the two side plates, and the material supporting plate moves along a direction perpendicular to the base under the driving of the lifting driving assembly. The base is provided with a material bin mounting groove and guide blocks located at the edges of the material bin mounting groove, an inclined surface is arranged on the side of each guide block facing the material bin mounting groove, the side of the inclined surface close to the material bin mounting groove is lower than the side far away from the material bin mounting groove, the number of the guide blocks is three, and the three guide blocks are arranged correspondingly to the back plate and the two side plates and are distributed in a U shape. The application further comprises a fixing plate arranged on the base, and the back plate is connected with the fixing plate through a magnetic attraction mechanism.

2. The stocker according to claim 1, characterized by The material bin further comprises a stop block parallel to the back plate, the stop block is used for shielding material pieces in the material bin, a plurality of stop block mounting positions are arranged on the side plate along a direction parallel to the base, and the stop block is fixed on the stop block mounting position.

3. A storage device according to claim 2, wherein The number of the stop blocks is two, the two stop blocks are fixed on the two side plates respectively, and the distance between the two stop blocks and the back plate is equal, and the material supporting plate is located between the two stop blocks.

4. The stocker according to claim 1, wherein The lifting driving assembly comprises a lead screw, a sliding block matched with the lead screw and a motor for driving the lead screw to rotate, the lead screw is perpendicular to the base, and the material supporting plate is fixedly connected with the sliding block.

5. The stocker according to claim 1, wherein The application further comprises an edge trimming mechanism arranged on the fixing plate, the edge trimming mechanism comprises a pneumatic cylinder and a push block connected with the pneumatic cylinder, the push block is located above the back plate and reciprocates along a direction perpendicular to the back plate.

6. The stocker according to claim 1, wherein The application further comprises a first detection assembly arranged on the fixing plate, and the first detection assembly is used for detecting the position of the top layer of material pieces in the material bin.

7. The stocker according to claim 1, wherein The application further comprises an anti-piling mechanism arranged on the fixing plate, the anti-piling mechanism comprises a blowing nozzle and a gas source connected with the blowing nozzle, and the blowing port of the blowing nozzle is located above the back plate and blows gas towards the interior of the material bin.

8. A chip resistor processing apparatus characterized by comprising: The application relates to a material storage device, which comprises a base, a material bin and a lifting mechanism, the material bin comprises a back plate and two parallel side plates, the back plate and the side plates are perpendicular to the base, a plurality of side plate mounting positions are arranged on the back plate, the two side plates are fixed on the side plate mounting positions respectively, the lifting mechanism comprises a lifting driving assembly and a material supporting plate connected with the lifting driving assembly, the material supporting plate is parallel to the base and is arranged between the two side plates, and the material supporting plate moves along a direction perpendicular to the base under the driving of the lifting driving assembly.

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