Gripping and feeding device

Abstract

The utility model discloses a kind of clamping feeding devices, it includes: a pair of oppositely arranged and along first axial extension's first clamping plate and second clamping plate, accommodating gap of accommodating material tape is equipped between two, first clamping plate and second clamping plate one end are feed inlet, the other end is discharge port, and first clamping plate and second clamping plate width are less than material tape, so that material tape at least one side from gap extends;Respectively located in the side of first clamping plate and second clamping plate and oppositely arranged first clamping block and second clamping block;First drive mechanism connects first clamping block, for driving it to be close to or away from second clamping block to clamping or release the edge of extended material tape;Second drive mechanism drives two clamping blocks and reciprocates along first axial synchronous motion.The above-mentioned clamping feeding device effectively reduces the risk of material tape surface damage, and the adaptability to material tape width and thickness change is strong, without frequently replacing clamping component can be compatible with multiple specifications material tape.

Description

Technical Field

[0001] This utility model relates to the field of feeding equipment technology, and in particular to a clamping and feeding device. Background Technology

[0002] In the terminal stamping process, the feeder is the core equipment for accurately conveying the terminal strip. Its main function is to stably and continuously feed the strip into the stamping machine for processing. Traditional feeding devices typically employ roller-type or pneumatic clamping structures, driving the strip forward through the friction of the rollers or the clamping force of the clamping mechanism. However, roller-type feeding devices rely on the friction between the rollers and the strip for conveying. But when the strip surface is smooth or contains oil, insufficient friction may lead to slippage, affecting feeding accuracy and stability. Furthermore, prolonged contact between the rollers and the strip can easily cause scratches or deformation on the strip surface, especially for precision terminal strips. This damage can directly affect the quality of subsequent stamping processes.

[0003] Secondly, while traditional pneumatic clamping feeders can provide strong clamping force, their clamping mechanisms typically act directly on the main body of the material strip, easily causing indentations or deformation, especially for thin or soft material strips, where the damage is more pronounced. Furthermore, the clamping positions of existing clamping feeders are usually fixed, making it difficult to adapt to material strips of different widths or thicknesses, resulting in poor versatility. Utility Model Content

[0004] The purpose of this invention is to provide a clamping and feeding device that balances the protection of the material strip and adaptability to different material strip specifications in order to solve the above-mentioned technical problems.

[0005] To achieve the above objectives, this utility model provides a clamping and feeding device, characterized in that it includes: A pair of opposing first and second clamping plates extending along a first axial direction, with a receiving gap between the first and second clamping plates for receiving a conveyor belt, one end of the first and second clamping plates having an inlet for receiving the conveyor belt into the receiving gap, and the other end having an outlet, the width of the first and second clamping plates being smaller than the conveyor belt, such that at least one side of the conveyor belt extends out from the receiving gap; A first clamping block and a second clamping block are respectively located on one side of the first clamping plate and the second clamping plate and are arranged opposite to each other; A first driving mechanism is connected to the first clamping block. The first driving mechanism is used to drive the first clamping block closer to or further away from the second clamping block to clamp the edge of the strip extending from the receiving gap between the first clamping block and the second clamping block, or to release the clamping of the strip. The second drive mechanism is used to drive the first clamping block and the second clamping block to reciprocate synchronously along the first axis.

[0006] Preferably, the device further includes a support frame, a third clamping block, and a third driving mechanism. The two ends of the second clamping plate are disposed on the support frame, and the first clamping plate is disposed above the second clamping plate. The third clamping block is disposed on the support frame at one end near the discharge port. The third driving mechanism is connected to the third clamping block and is used to drive the third clamping block closer to or further away from the support frame to clamp the edge of the material strip extending from the receiving gap between the third clamping block and the support frame, or to release the clamping of the material strip. Furthermore, when the first clamping block is in a clamped state, the third clamping block is in a released state; when the first clamping block is in a released state, the third clamping block is in a clamped state.

[0007] Preferably, the first clamping block and the third clamping block are provided with clearance grooves adapted to the first clamping plate, so that the first clamping block and the third clamping block span across the first clamping plate; the second clamping block is provided with a groove, a portion of the second clamping plate located between its two ends is embedded in the groove, and the second clamping block can slide along the second clamping plate.

[0008] Preferably, it also includes a support frame, with both ends of the second clamping plate disposed on the support frame, the first clamping plate disposed above the first clamping plate, and a fixed mounting plate disposed on one end of the support frame near the feed inlet and the discharge outlet, respectively, with both ends of the first clamping plate connected to the two fixed mounting plates respectively.

[0009] Preferably, the first drive mechanism includes a first support shaft and a first bearing sleeved on the first support shaft. The first bearing is connected to the second clamping block. The upper end of the first support shaft passes through the second clamping block and is connected to the first clamping block. The lower end of the first support shaft abuts against the first lifting plate. The third drive mechanism includes a second support shaft and a second bearing sleeved on the second support shaft. The second bearing is connected to the support frame. The upper end of the second support shaft passes through the support frame and is connected to the third clamping block. The lower end of the second bearing abuts against the second lifting plate.

[0010] Preferably, it also includes a rotating shaft for transmission connection with a drive motor, wherein a first roller and a second roller are eccentrically disposed on the rotating shaft; The first lifting plate is in rolling connection with the outer wall of the first roller, and the second lifting plate is in rolling connection with the outer wall of the second roller. When the rotating shaft rotates, the first lifting plate and the second lifting plate rise and fall alternately.

[0011] Preferably, the second drive mechanism includes a wheel and a crank. The wheel is connected to the rotating shaft via a transmission wheel mechanism so that the rotating shaft can drive the wheel to rotate. One end of the crank is pivotally connected to the second clamping block, and the other end of the crank is connected to a position on the wheel that is off-center from the rotation center.

[0012] Preferably, the wheel is further provided with a straight groove extending in its radial direction, a connecting block is provided in the straight groove, the position of the connecting block in the straight groove is adjustable, and one end of the crank is connected to the connecting block.

[0013] Preferably, the support frame includes a feeding end near the inlet and a feeding end near the outlet. The roller is located below the feeding end. The feeding end is also provided with an auxiliary feeding plate that connects with the inlet. The auxiliary feeding plate is provided with a guide groove that is directly opposite the inlet. The guide groove is used to place the material belt and guide the material belt into the inlet.

[0014] Preferably, the feeding end of the support frame has a notch communicating with the lower rotating wheel. The inner end of the auxiliary feeding plate near the feed inlet is located within the notch, and the inner end is pivotally connected to the support frame, so that the auxiliary feeding plate can rotate relative to the support frame, and the auxiliary feeding plate has a first state and a second state. The notch on the support frame is also provided with a support portion. When the auxiliary feeding plate is in the first state, the support portion abuts against the bottom wall of the auxiliary feeding plate, so that the guide groove is directly opposite the feed inlet. When the auxiliary feeding plate is in the second state, the notch is exposed.

[0015] Compared with existing technologies, the clamping and feeding device provided by the above technical solution has several advantages. First, the clamping block acts only on the edge of the strip, avoiding direct contact and compression of the strip body, effectively reducing the risk of damage to the strip surface. This is particularly suitable for precision terminal strips or materials with high surface finish requirements, ensuring the quality of subsequent stamping processes. Second, a receiving gap is formed by a pair of opposing first and second clamping plates. The strip is guided within the gap and its lateral displacement is restricted, ensuring a stable movement trajectory of the strip along the first axial direction. Third, the width of the first and second clamping plates is designed to be smaller than the width of the strip, allowing at least one side of the strip to extend from the receiving gap. The clamping block only clamps the extended portion, making the clamping device highly adaptable to changes in strip width and thickness. It can accommodate various strip specifications without frequent replacement of clamping components, improving the versatility and production efficiency of the device. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the feeding device in an embodiment of the present invention.

[0017] Figure 2 for Figure 1 Top view.

[0018] Figure 3 This is a diagram showing the usage state of the feeding device in an embodiment of the present invention.

[0019] Figure 4 for Figure 3 Installation structure diagram of the middle part of the mechanism.

[0020] Figure 5 for Figure 4 Side view.

[0021] Figure 6 This is a three-dimensional structural diagram of the rotating wheel in an embodiment of the present invention.

[0022] Figure 7 This is a three-dimensional structural diagram of the first clamping block and the second clamping block in an embodiment of the present invention.

[0023] Figure 8 This is a three-dimensional structural diagram of the fixed mounting plate in an embodiment of the present invention.

[0024] Figure 9 This is a perspective view of the drive mechanism in an embodiment of the present invention.

[0025] Figure 10 for Figure 9 Top view.

[0026] Figure 11 This is a perspective view of the auxiliary feeding plate of the feeding mechanism in an embodiment of the present invention in an upward-flipped state. Detailed Implementation To explain in detail the technical content, structural features, objectives and effects of this utility model, the following description is provided in conjunction with the embodiments and accompanying drawings.

[0027] This utility model discloses a clamping and feeding device for conveying strip materials during processing, including but not limited to terminal strips. For example, in a strip stamping process, this feeding device continuously conveys the strip to the stamping device to achieve automatic material feeding.

[0028] like Figures 1 to 4 The feeding device includes a pair of opposing clamping plates 100 and 101 extending along a first axial direction F, a first clamping block 11 and a second clamping block 12 located on one side of the first clamping plate 100 and the second clamping plate 101 and respectively and opposingly arranged, as well as a first driving mechanism and a second driving mechanism.

[0029] There is a receiving gap between the first clamping plate 100 and the second clamping plate 101 for receiving the conveying belt P. One end of the first clamping plate 100 and the second clamping plate 101 has a feed inlet 102 for receiving the conveying belt P into the receiving gap, and the other end has a discharge outlet 103. The width of the first clamping plate 100 and the second clamping plate 101 is smaller than that of the conveying belt P, so that at least one side of the conveying belt P extends out from the receiving gap.

[0030] The first driving mechanism is connected to the first clamping block 11. The first driving mechanism is used to drive the first clamping block 11 to move closer to or away from the second clamping block 12, so as to clamp the edge of the strip P extending from the receiving gap between the first clamping block 11 and the second clamping block 12, or to release the clamping of the strip P.

[0031] The second drive mechanism is used to drive the first clamping block 11 and the second clamping block 12 to reciprocate synchronously along the first axis F.

[0032] The working principle of the above-mentioned clamping device is as follows: First, the material strip P enters the receiving gap between the two clamping plates (first clamping plate 100 and second clamping plate 101) from the feed inlet 102. Since the width of the clamping plate is smaller than that of the material strip P, at least one side of the edge of the material strip P is exposed outside the clamping plate and located in the clamping area between the first clamping block 11 and the second clamping block 12. Then, the first drive mechanism drives the first clamping block 11 to approach the second clamping block 12, thereby clamping the edge of the material strip P and forming a driving force transmission surface; Next, the second drive mechanism drives the first clamping block 11 and the first clamping block 11 to move synchronously along the first axis F (that is, the conveying direction of the material belt P) so as to drive the material belt P to move towards the discharge port 103. When the first clamping block 11 and the first clamping block 12 move to the limit position, the first driving mechanism drives the first clamping block 11 away from the second clamping block 12, thereby releasing the clamping of the material strip P. Then, the second drive mechanism drives the first clamping block 11 and the second clamping block 12 to move in opposite directions to return to the starting point and prepare for secondary conveying. In this way, the material belt P is conveyed step by step towards the discharge port 103 by the clamping and intermittent movement of the first clamping block 11 and the second clamping block 12 (the rhythm is: clamping - moving - releasing - returning).

[0033] The clamping and feeding device provided in this embodiment, firstly, because the first clamping block 11 and the second clamping block 12 only act on the edge of the strip P, avoids direct contact and squeezing of the main body of the strip P, significantly reducing the risk of damage to the surface of the strip P, and is especially suitable for precision terminal strip P or materials with high surface requirements, thereby ensuring the quality of subsequent stamping processing.

[0034] Secondly, the receiving gap formed by the pair of opposing first clamping plates 100 and second clamping plates 101 can effectively guide the material belt P and limit its lateral displacement, ensuring that the movement trajectory of the material belt P along the first axial direction F is stable.

[0035] Furthermore, since the width of the first clamping plate 100 and the second clamping plate 101 is smaller than the width of the strip P, the clamping block only clamps the protruding part of the strip P, making the clamping device highly adaptable to changes in the width and thickness of the strip P. It can be compatible with various specifications of strip P without frequent replacement of clamping parts, which greatly improves the versatility and production efficiency of the device.

[0036] Furthermore, the clamping surfaces of the first clamping block 11 and the second clamping block 12 can be configured with specific textures or shapes to increase friction or accommodate the clamping of irregularly shaped strips P. The feed inlet 102 and the discharge outlet 103 can be equipped with guiding devices, such as guide grooves 170, to further optimize the introduction and discharge of the strip P.

[0037] On the other hand, the clamping and feeding device also includes a support frame 13, a third clamping block 14 and a third driving mechanism. The two ends of the second clamping plate 101 are disposed on the support frame 13, and the first clamping plate 100 is disposed above the second clamping plate 101.

[0038] The third clamping block 14 is disposed on the support frame 13 near the discharge port 103, and the third drive mechanism is connected to the third clamping block 14. The third drive mechanism is used to drive the third clamping block 14 closer to or further away from the support frame 13, so as to clamp the edge of the material strip P extending from the receiving gap between the third clamping block 14 and the support frame 13, or to release the clamping of the material strip P. When the first clamping block 11 is in the clamping state, the third clamping block 14 is in the loose state. When the first clamping block 11 is in the loose state, the third clamping block 14 is in the clamping state.

[0039] The feeding device in this embodiment has an alternating working mode including two sets of clamping mechanisms, which aims to solve the problems of backlash and positional deviation during the feeding process and improve the continuity and accuracy of feeding.

[0040] Specifically, the first clamping block 11 and the second clamping block 12 constitute the first clamping mechanism, the working principle of which is detailed in the example above. Based on this, the third clamping block 14 and the support frame 13 constitute the second clamping mechanism.

[0041] When the first clamping block 11 is in the clamping state, the third clamping block 14 is in the released state. At this time, the first clamping mechanism drives the material belt P forward. When the first clamping block 11 is released, the third clamping block 14 immediately clamps the material belt P to prevent the material belt P from retreating, and at the same time, the first clamping mechanism returns. This alternating clamping ensures that the material belt P is always firmly clamped by a set of clamping mechanisms throughout the entire feeding cycle, thereby achieving continuous and precise feeding without retreat.

[0042] On the other hand, such as Figure 7 The first clamping block 11 and the third clamping block 14 are provided with clearance grooves C1 that are adapted to the first clamping plate 100, so that the first clamping block 11 and the third clamping block 14 span across the first clamping plate 100. The second clamping block 12 is provided with a groove C2, and a portion of the second clamping plate 101 located between its two ends is embedded in the groove C2, and the second clamping block 12 can slide along the second clamping plate 101.

[0043] In this embodiment, the clearance grooves C1 provided on the first clamping block 11 and the third clamping block 14 are adapted in shape and size to the first clamping plate 100, allowing the first clamping block 11 and the third clamping block 14 to "cross over" or "ride" on top of the first clamping plate 100. This ensures that the first clamping block 11 and the third clamping block 14 can avoid interference with the first clamping plate 100 during clamping operations, while providing additional lateral support for the first clamping block 11 and the third clamping block 14, thus improving their movement stability.

[0044] The groove C2 provided on the second clamping block 12 is used to embed a part of the second clamping plate 101, so that the second clamping block 12 can slide smoothly along the second clamping plate 101. The tight fit between the groove C2 and the second clamping plate 101 provides precise guidance and restricts the lateral degree of freedom of the second clamping block 12, ensuring that it always maintains the correct movement trajectory during the feeding process.

[0045] On the other hand, such as Figures 1 to 3 A fixed mounting plate 15 is provided on one end of the support frame 13 near the feed inlet 102 and the discharge outlet 103, and the two ends of the first clamping plate 100 are respectively connected to the two fixed mounting plates 15.

[0046] In this embodiment, the two ends of the first clamping plate 100 are fixed by the setting of two fixed mounting plates 15. Therefore, by controlling the position of the first clamping plate 100 on the fixed mounting plates 15, the gap between the first clamping plate 100 and the second clamping plate 101 can be controlled to match the material strip P. Specifically, as shown... Figure 8 The fixed mounting plate 15 has a slot 150, and the two ends of the first clamping plate 100 are respectively engaged with the two fixed mounting plates 15. On the other hand, such as Figure 4 and Figure 5 The first drive mechanism includes a first support shaft 110 and a first bearing 111 sleeved on the first support shaft 110. The first bearing 111 is connected to the second clamping block 12. The upper end of the first support shaft 110 passes through the second clamping block 12 and is connected to the first clamping block 11. The lower end of the first support shaft 110 abuts against the first lifting plate 112.

[0047] The third drive mechanism includes a second support shaft 140 and a second bearing 141 sleeved on the second support shaft 140. The second bearing 141 is connected to the support frame 13. The upper end of the second support shaft 140 passes through the support frame 13 and is connected to the third clamping block 14. The lower end of the shaft of the second bearing 141 abuts against the second lifting plate 142.

[0048] In this embodiment, the vertical movement of the first support shaft 110 can directly drive the first clamping block 11 to move closer to or further away from the second clamping block 12. The lower end of the first support shaft 110 abuts against the first lifting plate 112, meaning that the lifting movement of the first lifting plate 112 will directly drive the vertical displacement of the first support shaft 110, thereby controlling the clamping and releasing of the first clamping block 11.

[0049] Similarly, for the third drive mechanism, the lower end of the second support shaft 140 abuts against the second lifting plate 142. By raising and lowering the second lifting plate 142, the second support shaft 140 is driven to move vertically, thereby controlling the clamping and releasing of the third clamping block 14 relative to the support frame 13.

[0050] This embodiment utilizes the linear reciprocating motion of the support shaft, with bearings providing support and guidance, to ensure the smoothness and accuracy of the vertical movement of the clamping blocks (first clamping block 11, third clamping block 14), while reducing transmission links and improving response speed and transmission efficiency.

[0051] Furthermore, the lower end of the first support shaft 110 is rolledly connected to the first lifting plate 112 via the first roller 113. When the second drive mechanism drives the second clamping block 12 to move along the first axis F, the first roller 113 rolls on the surface of the first lifting plate 112, thereby effectively reducing the friction between the first support shaft 110 and the first lifting plate 112 and saving energy. At the same time, the rolling contact also avoids jamming and shaking that may be caused by sliding friction, ensuring that the horizontal movement of the first support shaft 110 is smoother and more precise.

[0052] On the other hand, such as Figure 9 and Figure 10 The feeding device also includes a rotating shaft 160 for transmission connection with a drive motor, and a first roller 161 and a second roller 162 are eccentrically arranged on the rotating shaft 160.

[0053] The first lifting plate 112 is rolledly connected to the outer wall of the first roller 161, and the second lifting plate 142 is rolledly connected to the outer wall of the second roller 162. When the rotating shaft 160 rotates, the first lifting plate 112 and the second lifting plate 142 rise and fall alternately.

[0054] Specifically, such as Figure 4 A second roller 114 is installed on the first lifting plate 112, and a third roller 143 is installed on each of the second lifting plates 142, so as to achieve rolling connection between the outer wall surfaces of the first lifting plate 112 and the first roller 161, and between the second lifting plate 142 and the second roller 162. Based on this rolling connection, the first lifting plate 112 and the second lifting plate 142 are effectively prevented from obstructing the rotation of the first roller 161 and the second roller 162.

[0055] In this embodiment, the feeding device converts rotary motion into linear reciprocating motion based on eccentric rotation. Specifically, a rotating shaft 160 is configured and driven by a drive motor. A first roller 161 and a second roller 162 are eccentrically mounted on the rotating shaft 160. Here, "eccentrically mounted" means that the rotation centers of the first roller 161 and the second roller 162 do not coincide with the rotation center of the rotating shaft 160.

[0056] When the drive motor drives the rotating shaft 160 to rotate, due to the eccentric arrangement of the first roller 161 and the second roller 162, they will periodically change the distance between the center of rotation and the contact point of the first lifting plate 112 and the second lifting plate 142 during the rotation process. This change in distance will be converted into the vertical reciprocating motion of the first lifting plate 112 and the second lifting plate 142 through the rolling connection.

[0057] Because the first roller 161 and the second roller 162 are eccentrically positioned with different eccentric directions, the first lifting plate 112 and the second lifting plate 142 can achieve precise alternating raising and lowering when the rotating shaft 160 rotates. For example, when the eccentric point of the first roller 161 is at its highest position, the first lifting plate 112 rises to its highest point, while the eccentric point of the second roller 162 is at its lowest position, causing the second lifting plate 142 to be at its lowest point. As the rotating shaft 160 continues to rotate, the relative positions of the two rollers change, thereby achieving alternating raising and lowering of the two lifting plates, which in turn drives the alternating clamping and releasing of the two sets of clamping mechanisms, ensuring continuous feeding of the material belt P.

[0058] On the other hand, the first roller 161 and the second roller 162 are disposed in a housing 163. The two sides of the first lifting plate 112 and the second lifting plate 142 are respectively connected to the side walls of the housing 163 through a guide structure. The guide mechanism includes a guide shaft and a guide hole adapted to the guide shaft.

[0059] Specifically, guide holes are set on the side wall of the housing 163, while guide shafts are set on the corresponding lifting plates (first lifting plate 112, second lifting plate 142). When the lifting plates reciprocate vertically under the action of the rollers (first roller 161, second roller 162), the guide shafts slide up and down in the guide holes, thereby precisely limiting the movement trajectory of the lifting plates and ensuring that they always move vertically along the preset straight path. This greatly improves the stability and straightness of the lifting plate movement, thereby ensuring the precise clamping and releasing actions of the first clamping block 11 and the third clamping block 14, and thus improving the accuracy and reliability of the entire feeding device.

[0060] On the other hand, please refer to the following: Figures 4 to 6 The second drive mechanism includes a rotating wheel 120 and a crank 121. The rotating wheel 120 is connected to the rotating shaft 160 through a transmission wheel mechanism so that the rotating shaft 160 can drive the rotating wheel 120 to rotate. One end of the crank 121 is pivotally connected to the second clamping block 12, and the other end of the crank 121 is connected to a position point on the rotating wheel 120 that is off-center from the rotation center.

[0061] This embodiment converts rotational motion into linear reciprocating motion based on the crank 121 linkage mechanism. Specifically, one end of the crank 121 is pivotally connected to the second clamping block 12, meaning the crank 121 can rotate freely around this connection point while transmitting force to the second clamping block 12. The other end of the crank 121 is connected to a point on the wheel 120 that is off-center from its rotation center. When the wheel 120 rotates around its center, the crank 121 will be periodically pushed and pulled because the other end of the crank 121 is connected to the off-center point. This pushing and pulling action is transmitted to the second clamping block 12 through the crank 121, forcing the second clamping block 12 to reciprocate along the first axis F.

[0062] Since the first clamping block 11 and the second clamping block 12 are arranged opposite to each other and cooperate to clamp the edge of the material strip P, the reciprocating motion of the second clamping block 12 will drive the first clamping block 11 and the clamped material strip P to reciprocate synchronously along the first axis F, thereby realizing the precise feeding of the material strip P. This crank-connecting rod mechanism design is simple in structure and highly reliable, and can efficiently convert rotary motion into precise linear reciprocating motion.

[0063] In addition, such as Figure 1 The support frame 13 is also equipped with a guide rod 134, and the second clamping block 12 passes through the guide rod 134. When the second clamping block 12 is subjected to the pushing and pulling force of the crank 121, it reciprocates along the guide rod 134, thereby further ensuring that the second clamping block 12 moves in a straight line along a fixed route and preventing the material belt P from deviating during the conveying process.

[0064] The transmission wheel mechanism can take various forms, such as precision gear drives (e.g., synchronous belt pulley drives, sprocket drives) or friction wheel drives, to adapt to different transmission ratios, torque, and noise requirements. In this embodiment, as... Figure 5 The transmission wheel mechanism includes a first wheel 164 and a second wheel 165. The first wheel 164 is connected to a rotating shaft 160, and the second wheel 165 is connected to a rotating wheel 120. The first wheel 164 and the second wheel 165 mesh with each other. The rotation of the rotating shaft 160 drives the first wheel 164 to rotate, which in turn drives the second wheel 165, which meshes with the first wheel 164, to rotate. In turn, the second wheel 165 drives the rotating wheel 120 to rotate.

[0065] On the other hand, such as Figure 6 The rotary wheel 120 is also provided with a straight groove 122 extending in its radial direction. A connecting block 123 is provided in the straight groove 122. The position of the connecting block 123 in the straight groove 122 is adjustable. One end of the crank 121 is connected to the connecting block 123.

[0066] As the connecting block 123 moves within the linear groove 122, the effective eccentricity (i.e., the distance from the connection point to the rotation center of the wheel 120) of the crank 121 and the rotating wheel 120 also changes. When the connecting block 123 moves away from the center of the rotating wheel 120, the effective eccentricity increases, thereby increasing the reciprocating stroke of the second clamping block 12 driven by the crank 121; conversely, when the connecting block 123 moves closer to the center of the rotating wheel 120, the effective eccentricity decreases, and the feeding stroke also decreases.

[0067] By adjusting the position of the connecting block 123 in the linear groove 122, the effective radius of the crank 121 can be precisely changed, thereby achieving stepless or step-by-step adjustment of the reciprocating feeding stroke of the second clamping block 12. This structure greatly enhances the flexibility of the feeding device and its adaptability to different feeding lengths.

[0068] The connecting block 123 can adopt a variety of locking mechanisms, such as bolt locking and quick clamping mechanism, to ensure that the adjusted position is stable and reliable and to prevent displacement during high-speed operation.

[0069] On the other hand, such as Figures 1 to 3 The support frame 13 includes a feeding end 130 near the feed inlet 102 and a feeding end 131 near the discharge outlet 103. The roller 120 is located below the feeding end 130. The feeding end 130 is also provided with an auxiliary feeding plate 17 that docks with the feed inlet 102. The auxiliary feeding plate 130 is provided with a guide groove 170 that is directly opposite to the feeding inlet. The guide groove 170 is used to place the material belt P and guide the material belt P into the feeding inlet.

[0070] The auxiliary feeding plate 17 serves to provide a smooth inlet platform for the material belt P. A guide groove 170 is provided above the auxiliary feeding plate 17, directly opposite the feeding port (i.e., the inlet 102). The guide groove 170 can precisely accommodate the material belt P and guide it smoothly into the inlet 102 along a preset path.

[0071] Based on the auxiliary feeding plate 17 and the guide groove 170, the loading process of the material strip P is greatly simplified, the difficulty of manual alignment is reduced, the efficiency and accuracy of feeding are improved, and the risk of bending or damage to the material strip P during the feeding process is also reduced.

[0072] During the feeding process of the conveyor belt P, it is sometimes necessary to adjust the position of the connecting block 123 on the turntable 120, or to inspect, maintain, and clean the components below it. The presence of the auxiliary feeding plate 17 may hinder the operation.

[0073] Further improvements are needed: such as Figure 11The feeding end 130 of the support frame 13 has a notch 132 communicating with the lower rotating wheel 120. The inner end of the auxiliary feeding plate 17 near the feed inlet 102 is located within the notch 132, and the inner end is pivotally connected to the support frame 13 based on the pivot axis Z1, so that the auxiliary feeding plate 17 can rotate relative to the support frame 13, and the auxiliary feeding plate 17 can have a first state and a second state. The notch 132 on the support frame 13 is also provided with a support portion 133. When the auxiliary feeding plate 17 is in the first state (e.g. Figure 1 The supporting part 133 abuts against the bottom wall of the auxiliary feeding plate 17, so that the guide groove 170 is directly opposite the feed inlet 102; when the auxiliary feeding plate 17 is in the second state, the notch 132 is exposed (e.g. Figure 11 ).

[0074] In this embodiment, the auxiliary feeding plate 17 has two working states: a first state and a second state.

[0075] In the first state, the auxiliary feeding plate 17 is in a horizontal position, and its bottom wall abuts against the support portion 133 on the support frame 13. The function of the support portion 133 is to support the auxiliary feeding plate 17 and ensure that the guide groove 170 on the auxiliary feeding plate 17 is precisely aligned with the feed inlet 102, so as to facilitate the introduction of the material belt P.

[0076] In the second state, the auxiliary feed plate 17 is flipped upwards, exposing the notch 132. At this time, the operator can easily adjust, inspect, maintain, or clean the lower roller 120 or other components through the notch 132 without disassembling the entire auxiliary feed plate 17. This flip-up design greatly improves the maintainability and ease of operation of the device, while not affecting its normal feeding function.

[0077] The pivotal connection between the auxiliary feeding plate 17 and the support frame 13 can be achieved by using a pin, hinge, or universal joint to accommodate different flipping angles and load-bearing requirements. A damping mechanism or locating pin can be provided at the pivotal connection to ensure the stable locking of the auxiliary feeding plate 17 in the first and second states.

[0078] The above-disclosed embodiments are merely preferred embodiments of the present utility model and should not be construed as limiting the scope of the present utility model. Therefore, any equivalent variations made in accordance with the scope of the present utility model application shall still fall within the scope of the present utility model.

Claims

1. A clamping and feeding device, characterized in that, include: A pair of opposing first and second clamping plates extending along a first axial direction, with a receiving gap between the first and second clamping plates for receiving a conveyor belt, one end of the first and second clamping plates having an inlet for receiving the conveyor belt into the receiving gap, and the other end having an outlet, the width of the first and second clamping plates being smaller than the conveyor belt, such that at least one side of the conveyor belt extends out from the receiving gap; A first clamping block and a second clamping block are respectively located on one side of the first clamping plate and the second clamping plate and are arranged opposite to each other; A first driving mechanism is connected to the first clamping block. The first driving mechanism is used to drive the first clamping block closer to or further away from the second clamping block to clamp the edge of the strip extending from the receiving gap between the first clamping block and the second clamping block, or to release the clamping of the strip. The second drive mechanism is used to drive the first clamping block and the second clamping block to reciprocate synchronously along the first axis.

2. The clamping and feeding device according to claim 1, characterized in that, It also includes a support frame, a third clamping block, and a third driving mechanism. The two ends of the second clamping plate are disposed on the support frame, the first clamping plate is disposed above the second clamping plate, the third clamping block is disposed on the support frame near the discharge port, and the third driving mechanism is connected to the third clamping block. The third driving mechanism is used to drive the third clamping block to move closer to or away from the support frame so as to clamp the edge of the material strip extending from the receiving gap between the third clamping block and the support frame, or to release the clamping of the material strip. Furthermore, when the first clamping block is in a clamped state, the third clamping block is in a released state; when the first clamping block is in a released state, the third clamping block is in a clamping state.

3. The clamping and feeding device according to claim 2, characterized in that, The first clamping block and the third clamping block are provided with clearance grooves adapted to the first clamping plate, so that the first clamping block and the third clamping block span across the first clamping plate; the second clamping block is provided with a groove, a portion of the second clamping plate located between its two ends is embedded in the groove, and the second clamping block can slide along the second clamping plate.

4. The clamping and feeding device according to claim 1, characterized in that, It also includes a support frame, with the two ends of the second clamping plate disposed on the support frame, the first clamping plate disposed above the first clamping plate, and a fixed mounting plate disposed on one end of the support frame near the feed port and the discharge port, respectively, with the two ends of the first clamping plate connected to the two fixed mounting plates respectively.

5. The clamping and feeding device according to claim 2, characterized in that, The first drive mechanism includes a first support shaft and a first bearing sleeved on the first support shaft. The first bearing is connected to the second clamping block. The upper end of the first support shaft passes through the second clamping block and is connected to the first clamping block. The lower end of the first support shaft abuts against the first lifting plate. The third drive mechanism includes a second support shaft and a second bearing sleeved on the second support shaft. The second bearing is connected to the support frame. The upper end of the second support shaft passes through the support frame and is connected to the third clamping block. The lower end of the second bearing abuts against the second lifting plate.

6. The clamping and feeding device according to claim 5, characterized in that, It also includes a rotating shaft for transmission connection with a drive motor, wherein a first roller and a second roller are eccentrically disposed on the rotating shaft; The first lifting plate is in rolling connection with the outer wall of the first roller, and the second lifting plate is in rolling connection with the outer wall of the second roller. When the rotating shaft rotates, the first lifting plate and the second lifting plate rise and fall alternately.

7. The clamping and feeding device according to claim 6, characterized in that, The second drive mechanism includes a wheel and a crank. The wheel is connected to the rotating shaft via a transmission wheel mechanism so that the rotating shaft can drive the wheel to rotate. One end of the crank is pivotally connected to the second clamping block, and the other end of the crank is connected to a position on the wheel that is off-center from the rotation center.

8. The clamping and feeding device according to claim 7, characterized in that, The wheel is also provided with a straight groove extending in its radial direction, and a connecting block is provided in the straight groove. The position of the connecting block in the straight groove is adjustable, and one end of the crank is connected to the connecting block.

9. The clamping and feeding device according to claim 7, characterized in that, The support frame includes a feeding end near the inlet and a feeding end near the outlet. The roller is located below the feeding end. The feeding end is also provided with an auxiliary feeding plate that connects with the inlet. The auxiliary feeding plate is provided with a guide groove that is directly opposite the inlet. The guide groove is used to place the material belt and guide the material belt into the inlet.

10. The clamping and feeding device according to claim 9, characterized in that, The feeding end of the support frame has a notch communicating with the rotating wheel below. The inner end of the auxiliary feeding plate near the feed inlet is located within the notch, and the inner end is pivotally connected to the support frame, so that the auxiliary feeding plate can rotate relative to the support frame, and the auxiliary feeding plate has a first state and a second state. A support portion is also provided in the notch on the support frame. When the auxiliary feeding plate is in the first state, the support portion abuts against the bottom wall of the auxiliary feeding plate, so that the guide groove is directly opposite the feed inlet. When the auxiliary feeding plate is in the second state, the notch is exposed.

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