Spanner transfer device and transfer method thereof

Abstract

This invention relates to a wrench conveying device and method, addressing the problems of low conveying efficiency, complex operation, and high labor costs associated with the production and packaging of large and heavy wrenches in existing technologies. The wrench conveying device comprises a main body, an arrangement area, a stopping section, and unloading components, and has a structure adaptable to wrenches of different shapes and sizes. In the conveying method, the wrench is first placed in the arrangement area and then advanced to the stopping section by a moving block for positioning. During unloading, an external object moves parallel to the wrench, triggering the interaction between rollers, a trigger element, and a pusher element, causing the elastic pin to disengage and re-enter the wrench, thus achieving smooth unloading. This device and method simplify the operation process, improve work efficiency, reduce labor costs, and enhance the overall operational efficiency of the production system.

Description

Technical Field

[0001] This invention belongs to the field of power tool accessories technology, and in particular to a wrench transmission device. Background Technology

[0002] Many power tool accessory kits typically include a dedicated wrench. This dedicated wrench is usually larger and heavier than other accessories, making it difficult for existing conveying mechanisms to efficiently transport it. Therefore, during production and packaging, the transport and placement of the dedicated wrench into the accessory kit often requires manual operation. This manual operation is not only inefficient but also prone to human error, affecting the stability of the entire packaging process and product quality. Furthermore, manual operation increases labor costs and reduces production efficiency. Therefore, it is necessary to develop a conveying device capable of accommodating large-size and heavy wrenches to improve the efficiency of wrench transport during accessory packaging, simplify the operation process, reduce labor costs, and improve the overall operational efficiency of the production system.

[0003] Patent application publication number CN 109502093 A discloses a packaging device for power tool accessories. According to this invention, the packaging device can automatically package power tool accessory bags. However, this design primarily focuses on the packaging process of smaller parts, and no effective solution has yet been provided for larger parts.

[0004] To overcome the limitations of existing technologies, the new wrench transmission device should consider the following points: First, it needs to have a structure that can adapt to wrenches of different shapes and sizes; second, the transmission device should be able to effectively support the weight of the wrench to ensure that no malfunctions occur during transmission; finally, the new device should be able to simplify the operation process, improve work efficiency, and reduce labor costs.

[0005] In conclusion, developing a conveying device suitable for large-size and heavy wrenches is of great significance for solving the problems in existing technologies. Such a device will help improve the conveying efficiency of wrenches during accessory packaging, simplify operating procedures, reduce labor costs, and improve the overall operational efficiency of the production system. Summary of the Invention

[0006] To address the aforementioned problems, this invention provides a wrench conveying device, which was developed in view of the problems of conventional automatic accessory packaging devices. Its structural and functional features can overcome the aforementioned shortcomings of the prior art.

[0007] The objective of this invention is achieved through the following technical solution: a wrench conveying device, comprising: a device body with a cuboid frame structure, the device body having an arrangement area for placing and arranging wrenches; a lifting slide fixedly connected to the device body for adjusting the height of the device; a propulsion component disposed in the device body for propulsing the entire row of wrenches; and a swing unloading component disposed at the end of the device body for realizing the arrangement, conveying and dropping of the wrenches.

[0008] Preferably, elongated holes are symmetrically provided on both sides of the raised middle section of the arrangement area along the length direction to limit the movement trajectory of the propulsion component.

[0009] Preferably, the arrangement area is provided with a drop opening and a resting part for temporary resting and dropping of the wrench.

[0010] Preferably, the length of the spring pin is set so that the wrench located in the recess is effectively supported.

[0011] Preferably, a transition block is added during the outward rotation of the spring pin to ensure that the spring pin smoothly disengages from and re-enters the wrench.

[0012] Preferably, the propulsion component includes a movable block located on the upper part of the arrangement area, and a groove on the lower part that matches the middle region of the arrangement area.

[0013] Preferably, the propulsion assembly also includes a limiting rod disposed in the groove of the moving block, the limiting rod passing laterally through two elongated holes; a tension spring with one end attached to the limiting rod and the other end fixed in the main body of the device; a sliding channel disposed on the upper part of the moving block; and a wrench limiting component that slides in cooperation with the sliding channel.

[0014] Preferably, the propulsion assembly also includes a baffle plate disposed on the upper part of the docking section.

[0015] Preferably, the swing unloading assembly includes a swing linkage having a long strip and two mounting shafts, wherein the center of the strip is hinged to the center of the device body in the width direction; rollers respectively mounted on the two mounting shafts, at least part of which extend beyond the end face of the device body; elastic pins respectively fixed to the two mounting shafts radially toward the center of the arrangement area, the length and center distance of which match the wrench; a pusher slidably disposed at the front end of the drop opening, connected to the arrangement area via a slide rail assembly; and a trigger installed at the hinge position of the strip, the trigger interacting with the pusher.

[0016] To address the above-mentioned problems, the present invention also provides a method for conveying a wrench conveying device, comprising the following steps:

[0017] a. Place the appropriate wrench into the arrangement area, ensuring that the center of the working position of both ends of the wrench is on the two sides raised in the middle of the arrangement area; at this time, the moving block is pushed in the direction of the tension force by the tension spring, pushing the entire row of wrenches to the stopping part;

[0018] b. When the wrench reaches the stop, push the wrench limiter to the stop plate to achieve wrench positioning;

[0019] c. When releasing the wrench, the external object moves parallel to and against the end of the main body of the device, first striking a roller. The triggering element rotates synchronously with the rotation of the strip, interacting with the pusher element, causing the pusher element to move towards the resting part. The pusher element presses against the wrench on the resting part, ensuring that the wrench in the slot is not affected by the pushing force from the entire row of wrenches. The elastic pin on the side of the roller that was struck rotates inward and enters more into the wrench. At the same time, the elastic pin on the other end rotates outward and exits from the wrench. One end of the wrench falls under the action of gravity.

[0020] d. The external object continues to move forward and hits another roller. The same trigger and pusher interact to ensure that the wrench in the drop is not affected by the thrust from the entire row of wrenches. The elastic pin on the opposite side of the hit roller disengages from the wrench, causing the wrench as a whole to fall out of the drop. At this point, the unloading of a single wrench is complete.

[0021] e. After the object leaves the roller, the rear-arranged wrenches are pushed by the force, and the wrenches that were originally on the resting part are pushed into the drop-out to fill the gap. At the same time, new wrenches enter the resting part to fill the gap. This process is repeated.

[0022] f. The transition block acts as a guide when the spring pin disengages from and re-enters the wrench, helping to ensure a smooth disengagement and re-entry of the spring pin.

[0023] In summary, the present invention has the following advantages compared with the prior art:

[0024] 1. Smooth transfer and unloading of wrenches: The design of the swing unloading component enables smooth transfer and unloading of wrenches in the wrench transfer device, improving the efficiency of accessory packaging.

[0025] 2. Ensure smooth wrench descent: The interaction between the trigger and the pusher ensures that the pusher moves to the stop part and presses against the wrench on the stop part, so that the wrench in the slot is not affected by the pushing force from the entire row of wrenches, thus achieving smooth wrench descent.

[0026] 3. Adaptable to wrenches of different shapes and sizes: The overall structure of the wrench transmission device is based on the center of the working positions at both ends of the wrench to perform the supporting and releasing actions. It does not require high precision and has a certain error range. Therefore, there is generally no directional restriction on the wrench and it can adapt to wrenches of different shapes and sizes.

[0027] 4. Simplified operation and improved work efficiency: Operators do not need to specifically adjust the direction when placing the wrench, which simplifies the operation process and improves work efficiency. This feature helps reduce the operator's workload and improves the overall system efficiency.

[0028] 5. Smooth disengagement and re-entry of the wrench: The transition block acts as a guide, helping to ensure that the spring pin smoothly disengages and re-enters the wrench, improving the stability and reliability of the wrench transmission device.

[0029] In summary, the present invention has certain innovations and advantages in the design and operation of the wrench transmission device. Compared with the prior art, it improves work efficiency, simplifies the operation process, and improves the overall system efficiency. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the structure of the present invention;

[0031] Figure 2 This is an exploded view of the components of the present invention;

[0032] Figure 3 This is an exploded view of the components from another angle of the present invention (the lifting slide is hidden).

[0033] Figure 4 This is a schematic diagram of the structure of the present invention (partially omitted and the main body of the device is hidden).

[0034] Figure 5 This is a schematic diagram of the main structure of the device.

[0035] Marked in the image:

[0036] Lifting slide 01, wrench 02, slat 03, main body of device 11, arrangement area 111, elongated hole 112, drop opening 113, stopping part 114, propulsion assembly 12, moving block 121, limit rod 122, tension spring 123, wrench limit piece 124, baffle 125, swing unloading assembly 13, swing linkage piece 131, mounting shaft 133, roller 132, elastic pin 134, push back piece 135, trigger piece 136, transition block 137. Detailed Implementation

[0037] The present invention will be further described below with reference to the embodiments illustrated in the accompanying drawings: (Referring to all the accompanying drawings)

[0038] Example 1

[0039] like Figure 1-2As shown, this invention relates to a wrench delivery device, including a device body 11 and a lifting slide 01. The lifting slide 01 is used to raise and lower the device to facilitate operation and placement of wrenches, and it is fixedly connected to the device body 11. The device body 11 has a cuboid frame structure, with the area enclosed by the two side walls being lower at both ends and higher in the middle, forming an arrangement area 111. The arrangement area 111 is mainly used for placing and arranging wrenches 02. The device also includes a pushing assembly 12 disposed in the device body 11, and a swing-out unloading assembly 13 disposed at the pushing end of the pushing assembly 12 in the pushing direction of the device body 11.

[0040] On both sides of the raised section in the middle of the arrangement area 111, there are elongated holes 112 symmetrically formed along the length direction. The function of the elongated holes 112 is to restrict the movement trajectory of the propulsion component 12.

[0041] The arrangement area 111 of the main body 11 has a break section on the side near the swing release assembly 13, the width of which is greater than the width of the wrench 02, forming a drop opening 113. The drop opening 113 allows the wrench 02 to fall from the arrangement area 111. There is an upward notch on the side of the drop opening 113 near the center of the arrangement area 111, which serves as a temporary resting part 114 for the wrench 02 before it is ready to fall.

[0042] The propulsion assembly 12 includes a movable block 121 located on the upper part of the arrangement area 111, with a groove at its lower part matching the middle area of ​​the arrangement area 111. A limiting rod 122 is disposed within the groove of the movable block 121, and the limiting rod 122 passes laterally through two elongated holes 112. One end is hooked onto the limiting rod 122, and the other end is fixed to a tension spring 123 in the main body 11 near the resting part 114. A sliding channel is provided on the upper part of the movable block 121, and a wrench limiting member 124 is slidably engaged with the sliding channel. A baffle 125 is provided on the upper part of the resting part 114, and the baffle 125 is used to block the wrench limiting member 124.

[0043] During operation, wrenches 02 are placed in the arrangement area 111. Under the tension of the tension spring 123, the moving block 121 is pushed in the direction of the tension, pushing the entire row of wrenches 02 towards the stopping part 114. The wrench limiting member 124 is blocked by the stop plate 125 during movement, thereby achieving the positioning of the wrench 02. This design allows the wrenches 02 to be smoothly conveyed in the arrangement area 111.

[0044] The swing release assembly 13 mainly includes the following parts:

[0045] The device includes a swing linkage 131 with a long strip 03 and two mounting shafts 133, wherein the center of the strip is hinged to the center of the device body 11 in the width direction. Rollers 132, each mounted on one of the two mounting shafts 133, extend at least partially beyond the end face of the device body 11. Elastic pins 134, each fixed to one of the two mounting shafts radially toward the center of the arrangement area 111, have lengths and center distances matching those of the wrench 02. A pusher 135, slidably disposed at the front end of the drop opening 113, is connected to the arrangement area 111 via a slide rail assembly. A trigger 136, mounted at the hinge position of the strip 03, interacts with the pusher 135.

[0046] Through the coordinated action of these components, the wrench delivery device can arrange, deliver, and drop the wrench 02, thereby transporting it to the designated location.

[0047] The working principle is as follows:

[0048] When an external object moves parallel to and against the end of the device body 11, it first strikes one of the rollers 132. This causes the elastic pin 134 on one side of the roller 132 to rotate inward and engage more with the wrench 02, while the other elastic pin 134 rotates outward and disengages from the wrench 02. At this point, under the influence of gravity, one end of the wrench 02 falls. As the object continues to move forward and strikes another roller 132, the other elastic pin 134 also disengages from the wrench 02, causing the entire wrench 02 to fall out of the drop opening 113. This completes the release of a single wrench 02.

[0049] After the object leaves the roller 132, the rear-arranged wrenches 02 are pushed. The wrenches 02 that were originally resting on the resting part 114 are pushed into the drop opening 113 to fill the gap. At the same time, a new wrench 02 enters the resting part 114 to fill the empty space. This process is repeated.

[0050] To ensure the smooth descent of wrench 02 into slot 113, trigger 136 rotates synchronously with the rotation of slat 03, interacting with pusher 135. This causes pusher 135 to move towards resting part 114, its height precisely pressing against wrench 02 on resting part 114, ensuring that wrench 02 in slot 113 is not affected by the thrust from the entire row of wrenches 02. This design enables the smooth transfer and unloading of wrench 02 in the swing unloading assembly 13, improving the efficiency of accessory packing.

[0051] It should be noted that at the position of the device body 11 corresponding to the roller 132, the device body 11 is provided with a notch for the roller 132 to move in and out. The diameter of the elastic pin 134 is much smaller than the diameter of the working part of the wrench 02. The elasticity of the elastic pin 134 lies in its ability to bend and straighten in the radial direction. The end of the elastic pin 134 has a chamfer. The center distance between the two elastic pins 134 is the same as or close to the center distance between the holes or notches at both ends of the wrench 02.

[0052] The length of the elastic pin 134 is designed as follows: when the strip 03 is parallel to the end of the main body 11, the chamfers of the two elastic pins 134 can enter the wrench 02 on the rest part 114, while the part of the elastic pin 134 near the chamfer enters the wrench 02 in the recess 113. This design allows the wrench 02 to be effectively supported in the recess 113.

[0053] Furthermore, to ensure smoother disengagement and re-entry of the flexible pin 134 into the wrench 02, a transition block 137 is added to the path of the flexible pin 134 as it rotates outward. The transition block 137 is an annular working surface that serves as a guide, helping the flexible pin 134 to smoothly disengage and re-enter the wrench 02.

[0054] The wrench delivery device takes into account that the dimensions of the two ends of wrench 02 are usually not significantly different. The overall structure uses the center of the working positions at both ends of wrench 02 as a reference for support and unloading actions. Precision requirements are not high, and a certain error range is allowed. Therefore, wrench 02 typically has no directional restrictions. This means that the wrench delivery device can accommodate wrenches 02 of different shapes and sizes to a certain extent. At the same time, operators do not need to specifically adjust the direction when placing the wrench 02, simplifying the operation process and improving work efficiency. This feature helps reduce the operator's workload and improves the overall system operating efficiency.

[0055] The method for passing the wrench is as follows:

[0056] 1. Place the appropriate wrench 02 into the arrangement area 111, ensuring that the center of the working position of both ends of the wrench 02 is on both sides of the raised middle of the arrangement area 111. At this time, the moving block 121 is pushed in the direction of tension by the tension of the tension spring 123, pushing the entire row of wrenches 02 toward the resting part 114.

[0057] 2. When the wrench 02 reaches the stop part 114, the wrench limiting member 124 is pushed to the block of the stop plate 125, thereby achieving the positioning of the wrench 02.

[0058] 3. When releasing wrench 02, an external object moves parallel to and against the end of the device body 11, first striking a roller 132. The trigger 136 rotates synchronously with the rotation of the strip 03, interacting with the pusher 135, causing the pusher 135 to move towards the resting part 114. The height of the pusher 135 is just right and presses against the wrench 02 on the resting part 114, ensuring that the wrench 02 in the drop opening 113 is not affected by the pushing force from the entire row of wrenches 02. The elastic pin 134 on the side of the impacted roller rotates inward and enters more into the wrench 02, while the elastic pin 134 on the other end rotates outward and exits from the wrench 02. One end of the wrench 02 falls under the action of gravity.

[0059] 4. The external object continues to move forward and impacts another roller 132. The same trigger 136 interacts with the pusher 135, ensuring that the wrench 02 in the drop opening 113 is not affected by the thrust from the entire row of wrenches 02. The elastic pin 134 on the opposite side of the impacted roller 132 disengages from the wrench 02, causing the entire wrench 02 to fall from the drop opening 113. At this point, the unloading of a single wrench 02 is complete.

[0060] 5. After the object leaves the roller 132, the rear-arranged wrenches 02 are pushed by a force, and the wrenches 02 that were originally on the resting part 114 are pushed into the drop opening 113 to fill the gap. At the same time, a new wrench 02 enters the resting part 114 to fill the empty space. This process is repeated.

[0061] 6. When the flexible pin 134 disengages from and re-enters the wrench 02, the transition block 137 acts as a guide, which helps to ensure that the flexible pin 134 smoothly disengages from and re-enters the wrench 02.

[0062] The specific embodiments described herein are merely illustrative of the spirit of the invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to replace them, without departing from the spirit of the invention or exceeding the scope defined by the appended claims.

Claims

1. A wrench delivery device, characterized in that, include: The device body (11) has a rectangular frame structure and an arrangement area (111) for placing and arranging wrenches (02); a lifting slide (01) fixedly connected to the device body (11) for adjusting the height of the device; a propulsion assembly (12) set in the device body (11) for propulsing the row of wrenches (02); and a swing unloading assembly (13) set at the end of the device body (11) for arranging, conveying and dropping the wrenches (02); The swing unloading assembly (13) includes a swing linkage (131) having a long strip (03) and two mounting shafts (133), wherein the center of the strip is hinged to the center of the device body (11) in the width direction; rollers (132) respectively set on the two mounting shafts (133), at least part of the outer peripheral surface of which extends beyond the end face of the device body (11); elastic pins (134) respectively fixed on the two mounting shafts (133) radially toward the center of the arrangement area (111), the length and center distance of which match the wrench (02); a pusher (135) slidably set at the front end of the drop opening (113), which is connected to the arrangement area (111) through a slide rail assembly; and a trigger (136) installed at the hinge position of the strip (03), the trigger (136) interacting with the pusher (135).

2. The wrench conveying device according to claim 1, characterized in that, The arrangement area (111) has elongated waist holes (112) symmetrically opened on both sides of the raised middle section along the length direction to limit the movement trajectory of the propulsion component (12).

3. The wrench conveying device according to claim 1, characterized in that, The arrangement area (111) is provided with a drop opening (113) and a resting part (114) for the temporary resting and dropping of the wrench (02).

4. The wrench conveying device according to claim 1, characterized in that, The length of the elastic pin (134) is set so that the wrench (02) located in the recess (113) is effectively supported.

5. The wrench conveying device according to claim 1, characterized in that, A transition block (137) is added during the outward rotation of the elastic pin (134) to ensure that the elastic pin (134) smoothly disengages from and re-enters the wrench (02).

6. The wrench conveying device according to claim 2, characterized in that, The propulsion component (12) includes a movable block (121) located on the upper part of the arrangement area (111), and a groove in the lower part that matches the middle area of ​​the arrangement area (111).

7. The wrench conveying device according to claim 6, characterized in that, The propulsion assembly (12) also includes a limiting rod (122) disposed in the groove of the moving block (121), the limiting rod (122) passing laterally through two elongated holes (112); a tension spring (123) with one end attached to the limiting rod (122) and the other end fixed in the main body (11); a sliding channel disposed on the upper part of the moving block (121); and a wrench limiting member (124) that slides with the sliding channel.

8. The wrench conveying device according to claim 3, characterized in that, The propulsion assembly (12) also includes a baffle (125) disposed on the upper part of the docking part (114).

9. A method for conveying a wrench using the wrench conveying device according to any one of claims 1-8, characterized in that, The steps are as follows: a. Place the appropriate wrench (02) into the arrangement area (111), ensuring that the center of the working position of both ends of the wrench (02) is on both sides of the raised middle of the arrangement area (111); at this time, the moving block (121) is pushed in the direction of tension by the tension of the tension spring (123), pushing the entire row of wrenches (02) towards the stop part (114); b. When the wrench (02) reaches the stop part (114), the wrench limiting member (124) is pushed to the block of the stop plate (125) to achieve the positioning of the wrench (02); c. When releasing the wrench (02), the external object moves parallel to and against the end of the device body (11), first hitting a roller (132). The trigger (136) rotates synchronously with the rotation of the strip (03) and interacts with the pusher (135), causing the pusher (135) to move towards the resting part (114). The pusher (135) presses against the wrench (02) on the resting part (114), ensuring that the wrench (02) in the drop opening (113) is not affected by the pushing force from the entire row of wrenches (02). The elastic pin (134) on the side of the roller that was hit rotates inward and enters more into the wrench (02). At the same time, the elastic pin (134) at the other end rotates outward and exits from the wrench (02). One end of the wrench (02) falls under the action of gravity. d. An external object continues to move forward and hits another roller (132). The same trigger (136) interacts with the pusher (135) to ensure that the wrench (02) in the drop hole (113) is not affected by the thrust from the entire row of wrenches (02). The elastic pin (134) on the opposite side of the hit roller (132) is disengaged from the wrench (02), causing the wrench (02) to fall out of the drop hole (113) as a whole. At this time, the unloading of a single wrench (02) is completed. e. After the object leaves the roller (132), the rear-arranged wrenches (02) are pushed, and the wrenches (02) that were originally on the resting part (114) are pushed into the drop opening (113) to fill the gap. At the same time, a new wrench (02) enters the resting part (114) to fill the gap. This process is repeated. f. When the flexible pin (134) is disengaged from and re-enters the wrench (02), the transition block (137) acts as a guide to help ensure that the flexible pin (134) smoothly disengages from and re-enters the wrench (02).

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