Integrated equipment for producing middle section of ceramic resistor

Abstract

The invention relates to the field of ceramic resistor production, in particular to ceramic resistor middle section production integrated equipment. Comprising a feeding mechanism and a conveying mechanism, the conveying mechanism is sequentially provided with a strip folding area and a strip arranging area in the conveying direction, the strip folding area is provided with a strip folding mechanism, the strip folding mechanism comprises a supporting wheel and a rolling wheel, a plurality of protruding strips are evenly distributed on the outer circumferential face of the rolling wheel, and the rolling wheel is provided with a fixed point structure and a limiting assembly and comprises a movable frame and a pressure stabilizing belt. The conveying mechanism comprises a conveying frame and a conveying belt, a conveying channel is formed between the conveying belt and the pressure stabilizing belt, and a transmission structure used for driving the pressure stabilizing belt to operate in the conveying direction is arranged on the movable frame. The raised lines are accurately positioned through a fixed-point structure, the ceramic substrate abuts against the rear buffer layer and is pressed downwards, the rubber strips synchronously move forwards to form front-back limiting, the supporting plate conducts rigid supporting in the whole process, and vibration and warping are effectively restrained.

Description

Technical Field

[0001] This invention relates to the field of ceramic resistor production, specifically to an integrated equipment for the mid-stage production of ceramic resistors. Background Technology

[0002] In the field of electronic component manufacturing, chip resistors are usually sintered as a single piece, with multiple pre-set fold lines separating several micro-chip resistor units. These units need to be separated and neatly arranged one by one through a folding process for subsequent tape-and-reel bonding or mounting. Currently, this process mainly relies on resistor folding machines. However, existing folding equipment generally suffers from insufficient folding positioning accuracy, resulting in incomplete folding, misalignment, low yield, and poor stability.

[0003] A ceramic resistance strip folding machine, currently disclosed in Chinese Patent Publication No. CN114843056A, includes a frame, a feeding mechanism, a picking mechanism, a folding mechanism, a waste recycling mechanism, a conveying mechanism, and a control mechanism. The feeding mechanism is located on one side of the frame's table. The picking mechanism is located between the feeding mechanism and the folding mechanism. The folding mechanism is located between the feeding mechanism and the waste recycling mechanism. The conveying mechanism is located on the other side of the folding mechanism. The feeding mechanism supplies the material to be processed to the folding mechanism. The folding mechanism slits the material provided by the feeding mechanism. The conveying mechanism absorbs and recycles the slit material from the folding mechanism, while simultaneously conveying excess waste to the waste recycling mechanism. The feeding mechanism, picking mechanism, folding mechanism, and conveying mechanism are all controlled by the control mechanism.

[0004] According to the aforementioned patent, the patent achieves precise alignment, stable slitting, and automatic monitoring of anti-jamming for ceramic resistance sheets through the coordinated action of an adjustable upper pressure roller and a lower multi-roller assembly, along with fine-tuning and sensor detection. However, the ceramic resistance sheets in the aforementioned patent are susceptible to vibration or inertia during conveying and pressing, leading to slight displacement, creases, and misalignment with the pressure rollers, resulting in breakage and deviation, affecting slitting accuracy and yield.

[0005] Therefore, there is a current need for an integrated production equipment for the middle section of ceramic resistors that maintains stable folding of ceramic resistors. Summary of the Invention

[0006] To address the problems existing in the prior art, an integrated production equipment for the middle section of ceramic resistors is provided. The rolling roller protrusion is precisely positioned vertically downward through a fixed-point structure, forming an initial stop reference with the support roller. After the front end of the ceramic substrate abuts against the protrusion, the buffer layer flexibly presses down on the upper surface of the ceramic substrate, and the unlocked rubber strip moves forward and presses against the end of the ceramic substrate, forming a front and rear lateral limit with the protrusion. At the same time, the support plate provides continuous rigid support, effectively suppressing vibration and warping.

[0007] To address the problems of existing technologies, this invention provides an integrated production equipment for ceramic resistors, used to cut sheet ceramic substrates into strip resistors along preset folds. The equipment includes a feeding mechanism and a conveying mechanism. The conveying mechanism has a folding area and a strip-laying area sequentially arranged along the conveying direction. The folding area is equipped with a folding mechanism, which includes a support wheel located below the conveying mechanism and a rolling wheel located above the conveying mechanism, arranged vertically opposite to the support wheel, forming a folding gap between them for the ceramic substrate to pass through. The outer circumference of the rolling wheel is evenly distributed with several raised strips and has a fixed-point structure for... The convex strip is aligned vertically downwards with the support wheel at the initial working position. The limiting component is located in front of the rolling roller along the conveying direction and includes a movable frame and a pressure stabilizing belt mounted thereon. The movable frame can move towards the conveying mechanism. The conveying mechanism includes a conveying frame and a conveying belt. A conveying channel is formed between the conveying belt and the pressure stabilizing belt. The movable frame is provided with a transmission structure for driving the pressure stabilizing belt to run along the conveying direction. When the front end of the ceramic substrate abuts against the stop position formed by the convex strip below the rolling roller, the ceramic substrate is in a state of being synchronously clamped and stably pushed between the pressure stabilizing belt and the conveying belt.

[0008] Preferably, the outer surface of the pressure-stabilizing belt is provided with a buffer layer for pressing against the upper surface of the ceramic substrate, and cooperates with the conveyor belt to form a vertical limit.

[0009] Preferably, the outer surface of the buffer layer is provided with a rubber strip extending along the axis of the rolling wheel, which is used to abut against the end of the ceramic substrate and cooperate with the protrusion to form a lateral limit along the conveying direction.

[0010] Preferably, support plates are provided on both sides of the conveyor frame and below the pressure stabilizing belt. The support plates extend along the conveying direction and penetrate the folding area. The upper surface of the support plates is flush with the upper surface of the conveyor belt, and is used to provide rigid planar support for the ceramic substrate during the folding process.

[0011] Preferably, the movable frame is provided with a central shaft on both sides near the rolling roller. The central shaft is rotatably connected to the conveyor frame. The conveyor frame is provided with a push-pull structure that is pulsatingly connected to the movable frame, which is used to drive the movable frame to swing around the central shaft to adjust the clamping force of the buffer layer on the ceramic substrate.

[0012] Preferably, two bearing seats for rotating connection of rolling rollers are symmetrically provided on both sides of the conveyor frame. Each bearing seat is provided with an outwardly extending limiting plate on both sides along the conveying direction. The two limiting plates and the bearing seats together form a limiting gap for restricting the ceramic substrate from moving along both sides of the conveyor frame.

[0013] Preferably, two side plates are symmetrically arranged on both sides of the movable frame, and a limiting gap is formed between the two side plates to restrict the pressure stabilizing belt from moving along both sides of the movable frame. Each side plate is provided with a blocking structure for positioning the rubber strip at the initial position.

[0014] Preferably, the blocking structure includes a rotating stop block rotatably disposed on the side plate. The rotating stop block is located on the side of the side plate away from the rolling roller. Before the ceramic substrate enters the conveying channel, the rotating stop block is in a locked state for the rubber strip and together with the protrusion strip, forms a state of waiting to be limited and engaged.

[0015] Preferably, the fixed-point structure includes a translation block that is slidably disposed on the conveyor frame, a bushing is provided at one end of the rolling roller, an extension block is provided protruding outward on the bushing, the extension block is correspondingly disposed with a protrusion on the rolling roller, and a contact surface is formed between the extension block and the translation block.

[0016] Preferably, the push-pull structure includes electric push rods symmetrically arranged on both sides of the movable frame. Both sides of the movable frame are provided with force-bearing rods. The working end of the electric push rod is rotatably connected to the corresponding force-bearing rod, and the non-working end is rotatably connected to the conveyor frame. The conveyor frame is provided with a track groove for the force-bearing rods to slide.

[0017] The advantages of this application compared to the prior art are: 1. The present invention uses a rolling roller and a support roller with precise positioning by a fixed point structure in the folding area, and combines them with a pressure stabilizing belt and a conveyor belt that can be clamped and pushed synchronously, so that the ceramic substrate remains stable under the limit of upper and lower clamping.

[0018] With the ceramic substrate precisely aligned and in a vibration-free state, the rolling roller protrusions press the pre-set creases one by one, using the supporting reaction force and concentrated pressure to form controllable tensile stress at the creases, achieving clean and brittle fracture along the weakening path.

[0019] This effectively solves the problem of easy displacement and misalignment during the folding process of ceramic substrates, and improves the slitting accuracy and the stability of automated operation.

[0020] 2. This invention applies a uniform and flexible clamping force to the ceramic substrate by cooperating with the buffer layer and the conveyor belt, avoiding damage caused by localized stress concentration. After the front end of the ceramic substrate is positioned against the protrusion, the rubber strip moves forward with the pressure-stabilizing belt and presses against its end, forming a front-to-back clamp with the protrusion, effectively preventing lateral movement.

[0021] Meanwhile, the support plate runs through the folding area along the conveying direction, with its upper surface flush with the conveyor belt. During the rolling process, it provides continuous rigid support for the ceramic substrate, suppressing warping and vibration. This allows the substrate to complete the folding process under stable conditions of vertical and horizontal limiting, and bottom support, ensuring precise alignment of the preset creases and ridges.

[0022] 3. The present invention locks the initial position of the rubber strip before the ceramic substrate is in place by means of a rotating stop and an electromagnetic drive structure, and unlocks it precisely after it is in place, ensuring that the rubber strip only pushes against the end of the ceramic substrate after the ceramic substrate enters the conveying channel, forming a reliable front and rear limit with the front protrusion.

[0023] Simultaneously, the initial phase lock of the rolling roller is achieved by the engagement of the translation stop and the bushing extension block, ensuring that the convex strip is vertically aligned with the support roller. After the ceramic substrate is positioned, the lock is released, and the rolling roller is driven by an intermittent motor to rotate precisely at the pitch. This coordinated control ensures consistent alignment of the ceramic substrate creases and improves the accuracy of the crease strip. Attached Figure Description

[0024] Figure 1 This is a three-dimensional structural diagram of an integrated production equipment for the middle stage of ceramic resistors according to the present invention.

[0025] Figure 2 This is a top view of an integrated production equipment for the middle stage of ceramic resistors according to the present invention.

[0026] Figure 3 This is a three-dimensional structural diagram of the folding mechanism of an integrated ceramic resistor mid-section production equipment according to the present invention.

[0027] Figure 4 This is a partial three-dimensional structural diagram of the folding mechanism of an integrated ceramic resistor mid-section production equipment according to the present invention.

[0028] Figure 5 This is a partial planar sectional view of the folding mechanism of an integrated ceramic resistor mid-section production equipment according to the present invention.

[0029] Figure 6 This is the invention Figure 5 Enlarged diagram of point A.

[0030] Figure 7 This is the invention Figure 5 Enlarged diagram of point B.

[0031] Figure 8 This is the invention Figure 5 Enlarged diagram of point C.

[0032] Figure 9 This is a three-dimensional structural diagram of the limiting component of an integrated ceramic resistor mid-section production equipment of the present invention from a first perspective.

[0033] Figure 10 This is a three-dimensional structural diagram of the limiting component of an integrated ceramic resistor mid-section production equipment of the present invention from a second perspective.

[0034] The following are the labels in the diagram: 1. Ceramic substrate; 11. Strip resistor; 2. Conveyor frame; 21. Support plate; 22. Shaft seat; 23. Limiting plate; 3. Conveyor belt; 4. Support wheel; 5. Rolling roller; 51. Raised strip; 52. Fixed point structure; 521. Translation stop; 53. Bushing; 531. Extension block; 6. Limiting assembly; 61. Movable frame; 611. Central shaft; 612. Side plate; 62. Pressure stabilizing belt; 621. Buffer layer; 622. Rubber strip; 63. Transmission structure; 631. Belt roller; 64. Push-pull structure; 641. Electric push rod; 6411. Force rod; 6412. Track groove; 65. Blocking structure; 651. Rotating stop; 6511. Fixed electromagnet; 6512. Movable electromagnet. Detailed Implementation

[0035] To further understand the features, technical means, and specific objectives and functions achieved by the present invention, the present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments.

[0036] See Figures 1 to 6 As shown, an integrated production equipment for ceramic resistors in the middle stage is used to cut a sheet of ceramic substrate 1 into strip resistors 11 along a preset fold line. It includes a feeding mechanism and a conveying mechanism. The conveying mechanism has a folding area and a strip-arranging area sequentially along the conveying direction. The folding area has a folding mechanism, which includes a support wheel 4 located below the conveying mechanism. A rolling roller 5 is located above the conveying mechanism and is arranged vertically opposite to the support wheel 4, forming a folding gap between them for the ceramic substrate 1 to pass through. The outer circumference of the rolling roller 5 is evenly distributed with several protrusions 51 and has a fixing structure 52 to ensure that any protrusion 51 is vertically aligned downwards with the support wheel 4 at the initial position. A limiting component 6 is located in front of the rolling roller 5 along the conveying direction and includes a movable frame 61 and a pressure-stabilizing belt 62 mounted thereon. The movable frame 61 can move towards the conveying mechanism. The conveying mechanism includes a conveyor frame 2 and a conveyor belt 3, with a conveying channel formed between the conveyor belt 3 and the pressure-stabilizing belt 62. The movable frame 61 is provided with a transmission structure 63 for driving the pressure stabilizing belt 62 to run along the conveying direction. When the front end of the ceramic substrate 1 abuts against the stop position formed by the protrusion 51 below the rolling roller 5, the ceramic substrate 1 is in a state of being synchronously clamped and stably pushed between the pressure stabilizing belt 62 and the conveying belt 3.

[0037] The protrusion 51 has an arc-shaped structure.

[0038] The rotation direction of the support wheel 4 and the rolling wheel 5 is parallel to the transmission direction of the conveyor belt 3.

[0039] The transmission structure 63 includes a plurality of belt rollers 631, which are rotatably connected to the movable frame 61 and are used to support and tension the pressure stabilizing belt 62. One of the belt rollers 631 is a drive roller.

[0040] The integrated production equipment for ceramic resistors in the middle stage achieves precise cutting of the ceramic substrate 1 in the strip-folding area through a strip-folding mechanism. Specific strip-folding process: The entire ceramic substrate 1 is fed into the conveying mechanism by the feeding mechanism and smoothly transported to the folding area by the conveyor belt 3 along the conveying direction. As the ceramic substrate 1 moves forward with the conveyor belt 3, its front end first abuts against the protrusion 51, which is in a vertically downward position. The protrusion 51 is precisely positioned by the fixing structure 52, forming a stop reference. At this time, the ceramic substrate 1 stops moving forward, completing the initial alignment.

[0041] Subsequently, the movable frame 61 brings the pressure-stabilizing belt 62 closer to the conveyor belt 3, clamping the ceramic substrate 1 between them. The pressure-stabilizing belt 62 is driven by its transmission structure 63, and multiple belt rollers 631 support and tension the pressure-stabilizing belt 62, with the drive roller driving the pressure-stabilizing belt 62 to rotate along the conveying direction. The pressure-stabilizing belt 62 moves synchronously with the conveyor belt 3, applying a uniform clamping force to the ceramic substrate 1 and pushing it stably, keeping it flat without slippage or vibration.

[0042] After the substrate is reliably clamped, the fixing structure 52 is removed, releasing the lock on the rolling roller 5. The rolling roller 5 rotates, and its outer circumferential protrusions 51 pass sequentially through the corresponding preset crease positions on the ceramic substrate 1. With the cooperation of the lower support roller 4, it applies vertical rolling pressure to the ceramic substrate 1. Since the rotation axes of the support roller 4 and the rolling roller 5 are both parallel to the conveying direction, the rolling action is evenly distributed along the width direction of the ceramic substrate 1, causing the ceramic substrate 1 to undergo controllable brittle fracture along each crease, separating it into strip-shaped resistor 11 units segment by segment.

[0043] The fracture of the ceramic substrate 1 utilizes its brittle material properties by applying a local bending moment at the pre-marked line, causing it to fracture in a controlled manner along the weakening path.

[0044] When the protruding strip 51 is pressed down, it creates an upward supporting reaction force and a downward concentrated pressure on both sides of the pre-marked line. The supporting reaction force comes from the supporting wheel 4, thereby generating the maximum tensile stress at the mark. When this stress exceeds the tensile strength of the ceramic, the crack propagates from the bottom of the mark, achieving a clean fracture.

[0045] See Figures 4 to 8 As shown, the outer surface of the pressure stabilizing belt 62 is provided with a buffer layer 621, which is used to press against the upper surface of the ceramic substrate 1 and cooperate with the conveyor belt 3 to form a vertical limit.

[0046] When the ceramic substrate 1 enters the folding area, the movable frame 61 moves downward, driving the pressure stabilizing belt 62 closer to the upper surface of the ceramic substrate 1. The buffer layer 621 on the outer surface of the pressure stabilizing belt 62 first contacts the ceramic substrate 1, and under the continued downward pressure of the movable frame 61, it produces a moderate elastic deformation, thereby gently and firmly pressing the ceramic substrate 1 between the buffer layer 621 and the conveyor belt 3 below.

[0047] The buffer layer 621, with its flexible properties, evenly disperses pressure, avoiding local stress concentration that could lead to damage to the ceramic substrate 1. At the same time, together with the conveyor belt 3, it forms an upper and lower clamping structure, which restricts the jumping or warping of the ceramic substrate 1 in the vertical direction, forming a stable vertical limit and providing flat and reliable support conditions for subsequent precise folding.

[0048] See Figures 4 to 8 As shown, the outer surface of the buffer layer 621 is provided with a rubber strip 622 extending along the axis of the rolling roller 5, which is used to abut against the end of the ceramic substrate 1 and cooperate with the protrusion 51 to form a lateral limit along the conveying direction.

[0049] After the ceramic substrate 1 is positioned against the protrusion 51 below the rolling roller 5 at its front end, the pressure stabilizing belt 62 begins to run along the conveying direction, driving the rubber strip 622 on its surface buffer layer 621 to move forward synchronously. The rubber strip 622 extends along the axial direction of the rolling roller 5, moves with the pressure stabilizing belt 62 to the end position of the ceramic substrate 1, and gently abuts against the tail end of the ceramic substrate 1.

[0050] At this time, the front end is limited by the protrusion 51 and the rear end is pushed by the rubber strip 622. The two form a front and rear clamp in the conveying direction, which together constitutes a lateral limit on the ceramic substrate 1, effectively preventing the ceramic substrate 1 from moving longitudinally due to force or vibration during the folding process, and ensuring that each preset fold is accurately aligned with the protrusion 51.

[0051] See Figures 3 to 8 As shown, support plates 21 are respectively provided on both sides of the conveyor frame 2 and below the pressure stabilizing belt 62. The support plates 21 extend along the conveying direction and penetrate through the folding area. The upper surface of the support plates 21 is flush with the upper surface of the conveyor belt 3, and is used to provide rigid planar support for the ceramic substrate 1 during the folding process.

[0052] When the ceramic substrate 1 is conveyed to the folding area, its lower surface is continuously and rigidly supported by the support plate 21 below as it passes through the area. The support plate 21 is located on both sides of the conveyor frame 2 and directly below the pressure stabilizing belt 62, runs through the entire folding area along the conveying direction, and its upper surface is strictly flush with the upper surface of the conveyor belt 3.

[0053] When the roller 5 presses down to fold the strip, the stress area of ​​the ceramic substrate 1 is always within the rigid support range of the support plate 21, which effectively suppresses vibration and warping caused by local bending or elastic deformation of the belt, thereby ensuring that the crease is subjected to uniform force and the breakage is controllable.

[0054] See Figure 3 , Figure 5 and Figure 10 As shown, the movable frame 61 has a central shaft 611 on both sides near the rolling roller 5. The central shaft 611 is rotatably connected to the conveyor frame 2. The conveyor frame 2 is provided with a push-pull structure 64 that is connected to the movable frame 61 in a transmission manner, which is used to drive the movable frame 61 to swing around the central shaft 611 to adjust the pressing force of the buffer layer 621 on the ceramic substrate 1.

[0055] Before the folding operation begins, the push-pull structure 64 is in its initial position, and the movable frame 61 remains raised. When the front end of the ceramic substrate 1 reaches the stop position below the rolling roller 5, the push-pull structure 64 is activated, and its output end pushes the force-bearing part on the movable frame 61, causing the movable frame 61 to swing downward around the central axis 611 that is rotatably connected to the conveyor frame 2 on both sides.

[0056] As the movable frame 61 swings, its lower buffer layer 621 gradually approaches and eventually presses against the upper surface of the ceramic substrate 1. By controlling the output force of the push-pull structure 64, the swing angle of the movable frame 61 can be precisely adjusted, thereby dynamically adjusting the pressure of the buffer layer 621 on the ceramic substrate 1 to ensure stable clamping without damaging the brittle ceramic material.

[0057] See Figure 2 and Figure 3 As shown, two bearing seats 22 are symmetrically arranged on both sides of the conveyor frame 2 for rotating connection of the rolling rollers 5. Each bearing seat 22 is provided with an outwardly extending limiting plate 23 on both sides along the conveying direction. The two limiting plates 23 and the bearing seats 22 together form a limiting gap for restricting the ceramic substrate 1 from moving along both sides of the conveyor frame 2.

[0058] As the ceramic substrate 1 enters the folding zone along the conveyor belt 3, its two edges along the conveying direction pass through the limiting gap formed between the limiting plate 23 extending from the bearing seat 22 on both sides of the conveyor frame 2 and the bearing seat 22 body.

[0059] As the ceramic substrate 1 passes through, the limiting plates 23 on both sides guide and constrain its edges to prevent lateral displacement or skewing during conveying or folding. Thus, when the rolling roller 5 presses down to break it, the ceramic substrate 1 always maintains a centered and stable position, ensuring that each preset crease is precisely aligned with the protrusion 51 of the rolling roller 5, achieving high-precision folding.

[0060] See Figure 4 , Figure 5 and Figure 7 As shown, the movable frame 61 has two side plates 612 symmetrically arranged on both sides, and a limiting gap is formed between the two side plates 612 to limit the movement of the pressure stabilizing belt 62 along both sides of the movable frame 61. Each side plate 612 is provided with a blocking structure 65 for positioning the rubber strip 622 in the initial position.

[0061] During the process of the ceramic substrate 1 being fed into the folding area by the conveyor belt 3, the pressure stabilizing belt 62 is in a stationary state, and the rubber strip 622 on its surface is locked in the initial position by the blocking structure 65 on the side plates 612.

[0062] As the ceramic substrate 1 moves forward, its front end accurately contacts and positions the vertically downward-facing protrusion 51 below the rolling roller 5. The control system then triggers an unlocking signal, and the blocking structure 65 immediately activates, releasing the restriction on the rubber strip 622. Only then is the rubber strip 622 allowed to move forward with the start of the pressure-stabilizing belt 62, preparing to contact the end of the ceramic substrate 1 and achieve lateral positioning in conjunction with the protrusion 51. Once the rubber strip 622 contacts the end of the ceramic substrate 1, the rolling roller 5 is activated to rotate, beginning the sequential crushing and breaking of the preset creases.

[0063] See Figure 4 , Figure 8 and Figure 9 As shown, the blocking structure 65 includes a rotating stop 651 rotatably disposed on the side plate 612. The rotating stop 651 is located on the side of the side plate 612 away from the rolling roller 5. Before the ceramic substrate 1 enters the conveying channel, the rotating stop 651 is locked to the rubber strip 622 and together with the protrusion 51 forms a state of waiting to be limited.

[0064] The rotating stop 651 is rotatably connected to the side plate 612, and its rotation direction is parallel to the conveying direction of the pressure stabilizing belt 62. It is equipped with an electromagnetic drive structure, which includes a fixed electromagnet 6511 and two movable electromagnets 6512. The fixed electromagnet 6511 is fixedly connected to the side plate 612, and the two movable electromagnets 6512 are respectively arranged on both sides of the fixed electromagnet 6511 and fixedly connected to the rotating stop 651.

[0065] Before the ceramic substrate 1 enters the conveying channel, the rotating stop 651 is held in a locked position by its rotatable connection with the side plate 612, and its stopping surface abuts against the end of the rubber strip 622, preventing it from moving. The rubber strip 622 is locked in the initial position above the pressure stabilizing belt 62, and does not affect the conveying of the ceramic substrate 1 in the conveying channel.

[0066] Once the front end of the ceramic substrate 1 is positioned against the protrusion 51, the control system is energized to generate magnetic force in the fixed electromagnet 6511. This magnetic force attracts one movable electromagnet 6512 while repelling the other movable electromagnet 6512, creating a rotational torque that drives the rotating stop 651 to rotate around the axis. This causes the stop to disengage from the rubber strip 622 and release the lock, creating conditions for the rubber strip 622 to move forward and push against the end of the ceramic substrate 1.

[0067] See Figure 3 , Figure 9 and Figure 10 As shown, the fixed-point structure 52 includes a translation block 521 that is slidably disposed on the conveyor frame 2. One end of the rolling roller 5 is provided with a bushing 53. An extension block 531 protrudes outward from the bushing 53. The extension block 531 is correspondingly disposed with a protrusion 51 on the rolling roller 5 and forms a contact surface with the translation block 521.

[0068] The conveyor frame 2 is equipped with a linear driver for driving the translation stop 521 to move closer to or away from the bushing 53.

[0069] The other end of the rolling roller 5 is equipped with an intermittent motor. Whenever the rolling roller 5 rotates a range, one of the protrusions 51 is aligned with the support roller 4.

[0070] In the initial state of the equipment, the rolling roller 5 is driven by an intermittent motor and is in a standby position, with the extension block 531 on one end of the bushing 53 strictly corresponding to a specific protrusion 51. At this time, the linear drive pushes the translation block 521 to slide along the conveyor frame 2 to a position close to the bushing 53, so that the translation block 521 and the side of the extension block 531 are tightly fitted to form a stable contact surface, thereby locking the rolling roller 5 in the initial phase and ensuring that the corresponding protrusion 51 is vertically downward and precisely aligned with the support roller 4 below.

[0071] After the front end of the ceramic substrate 1 completes its contact positioning and triggers the folding process, the linear actuator reverses its action, moving the translation stop 521 away from the bushing 53 and releasing the constraint on the extension block 531. Subsequently, the intermittent motor starts, driving the rolling roller 5 to rotate one pitch interval, so that the next protrusion 51 is accurately rotated to the position aligned with the support roller 4, preparing for the next ceramic substrate 1 or the next folding cycle.

[0072] See Figure 3 , Figure 9 and Figure 10 As shown, the push-pull structure 64 includes electric push rods 641 symmetrically arranged on both sides of the movable frame 61. Both sides of the movable frame 61 are provided with force rods 6411. The working end of the electric push rod 641 is rotatably connected to the corresponding force rod 6411, and the non-working end is rotatably connected to the conveyor frame 2. The conveyor frame 2 is provided with a track groove 6412 for the force rod 6411 to slide.

[0073] During the folding preparation stage, the electric push rods 641 on both sides are in the extended state, and the movable frame 61 remains in the raised position.

[0074] After the front end of the ceramic substrate 1 is positioned against the protrusion 51 of the rolling roller 5, the control system drives the two electric push rods 641 to retract synchronously. Their working ends pull the force rod 6411 that is rotatably connected to them. Under the pulling action, the force rod 6411 slides along the preset track groove 6412 on the conveyor frame 2, and at the same time drives the movable frame 61 to swing downward around the central axis 611 below it.

[0075] Because the track groove 6412 guides the movement path of the force-bearing rod 6411, the downward movement of the movable frame 61 is smooth and the angle is controllable, ensuring that the buffer layer 621 on the pressure-stabilizing belt 62 is evenly pressed against the upper surface of the ceramic substrate 1. By adjusting the stroke of the electric push rod 641, the clamping force can be precisely controlled.

[0076] In this invention, the protrusion 51 of the rolling roller 5 is precisely positioned vertically downward by the fixed-point structure 52, forming an initial stop reference with the support roller 4. After the front end of the ceramic substrate 1 abuts against the protrusion 51, the electric push rod 641 drives the movable frame 61 to swing down smoothly, so that the buffer layer 621 flexibly presses against the upper surface of the ceramic substrate 1 to avoid stress concentration.

[0077] Synchronously, the rotating stop 651 unlocks the rubber strip 622 under electromagnetic drive, causing it to move forward and press against the end of the ceramic substrate 1, forming a front-to-back lateral limit with the protrusion 51. The support plate 21 passes through the folded strip area and is flush with the conveyor belt 3, providing continuous rigid support and suppressing vibration and warping.

[0078] After the substrate is vertically clamped, horizontally locked, and bottom supported, the translation block 521 is removed, and the intermittent motor drives the rolling roller 5 to rotate at the pitch. The convex strip 51 rolls over the preset creases one by one, forming controllable tensile stress at the marked lines, achieving clean and brittle fracture along the weakening path. This ensures that the ceramic substrate 1 is free from offset and movement throughout the process, and that the force is uniform, effectively solving the problems of misalignment and fracture defects, and improving the consistency of slitting.

[0079] The above embodiments only illustrate one or more implementations of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of protection of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the appended claims.

Claims

1. An integrated production equipment for the middle section of ceramic resistors, used to cut a sheet of ceramic substrate into strip resistors along a preset fold line, including a feeding mechanism and a conveying mechanism, wherein the conveying mechanism is provided with a strip folding area and a strip arranging area in sequence along the conveying direction; Its features are, The folding area is equipped with a folding mechanism, which includes: Support wheels are located below the conveying mechanism; A rolling roller is positioned above the conveying mechanism and is arranged vertically opposite to the support roller, forming a folded gap between them for the ceramic substrate to pass through. The outer circumferential surface of the rolling roller is evenly distributed with several protrusions and has a fixed-point structure so that any of the protrusions is vertically aligned with the support roller at the initial working position. A limiting assembly is located in front of the roller along the conveying direction, including a movable frame and a pressure-stabilizing belt mounted thereon; The movable frame can move toward the conveying mechanism, which includes a conveying frame and a conveyor belt, and a conveying channel is formed between the conveyor belt and the pressure stabilizing belt; The movable frame is equipped with a transmission structure for driving the pressure-stabilizing belt to run along the conveying direction; When the front end of the ceramic substrate abuts against the stop position formed by the protrusion below the rolling roller, the ceramic substrate is in a state of being synchronously clamped and stably pushed between the pressure stabilizing belt and the conveyor belt.

2. The integrated equipment for the production of ceramic resistor intermediate stages according to claim 1, characterized in that, The outer surface of the pressure-stabilizing belt is provided with a buffer layer, which is used to press against the upper surface of the ceramic substrate and cooperate with the conveyor belt to form a vertical limit.

3. The integrated equipment for the production of ceramic resistor intermediate stages according to claim 2, characterized in that, The outer surface of the buffer layer is provided with a rubber strip extending along the axis of the rolling wheel, which is used to abut against the end of the ceramic substrate and cooperate with the protrusion to form a lateral limit along the conveying direction.

4. The integrated equipment for the production of ceramic resistor intermediate sections according to claim 3, characterized in that, Support plates are provided on both sides of the conveyor frame and below the pressure stabilizing belt. The support plates extend along the conveying direction and penetrate the folding area. The upper surface of the support plates is flush with the upper surface of the conveyor belt, and is used to provide rigid planar support for the ceramic substrate during the folding process.

5. The integrated equipment for the production of ceramic resistor intermediate stages according to claim 2, characterized in that, The movable frame has a central shaft on both sides near the rolling roller. The central shaft is rotatably connected to the conveyor frame. The conveyor frame is provided with a push-pull structure that is kinetically connected to the movable frame, which is used to drive the movable frame to swing around the central shaft to adjust the clamping force of the buffer layer on the ceramic substrate.

6. The integrated equipment for the production of ceramic resistor intermediate stages according to claim 1, characterized in that, Two symmetrical bearing seats for rotating connection of rolling rollers are provided on both sides of the conveyor frame. Each bearing seat has an outwardly extending limiting plate on both sides along the conveying direction. The two limiting plates and the bearing seats together form a limiting gap for restricting the ceramic substrate from moving along both sides of the conveyor frame.

7. The integrated equipment for the production of ceramic resistor intermediate stages according to claim 3, characterized in that, The movable frame has two side plates symmetrically arranged on both sides, with a limiting gap between the two side plates to restrict the pressure stabilizing belt from moving along both sides of the movable frame. Each side plate is provided with a blocking structure to position the rubber strip at the initial position.

8. The integrated equipment for the production of ceramic resistor intermediate stages according to claim 7, characterized in that, The blocking structure includes a rotating stop block rotatably mounted on the side plate. The rotating stop block is located on the side of the side plate away from the rolling roller. Before the ceramic substrate enters the conveying channel, the rotating stop block is locked to the rubber strip and together with the protrusion strip, forms a state of waiting to be limited and engaged.

9. The integrated equipment for the intermediate stage production of ceramic resistors according to claim 6, characterized in that, The fixed-point structure includes a translation stop block that is slidably mounted on the conveyor frame. One end of the rolling roller is provided with a bushing, and an extension block protrudes outward from the bushing. The extension block is correspondingly arranged with a protrusion on the rolling roller and forms a contact surface with the translation stop block.

10. The integrated equipment for producing the middle stage of ceramic resistors according to claim 5, characterized in that, The push-pull structure includes electric push rods symmetrically arranged on both sides of the movable frame. Both sides of the movable frame are provided with force rods. The working end of the electric push rod is rotatably connected to the corresponding force rod, and the non-working end is rotatably connected to the conveyor frame. The conveyor frame is provided with a track groove for the force rod to slide.

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