Device and method for assembling knife handle of utility knife

Abstract

The present invention discloses a device and method for assembling a tool holder of a utility knife, which includes a turntable structure with multiple workstations, and at least one bottom film loading unit, one spring loading unit, and one top film loading unit are distributed around the turntable structure; the bottom film loading unit is arranged in the upstream direction of the spring loading unit, and the top film loading unit is arranged in the downstream direction of the spring loading unit; the top film loading unit is used to adjust the position of the top film to be assembled, and pick up and place it on the bottom film with the spring loaded. The device and method for assembling a tool holder of the present invention adopts multiple workstations arranged on the turntable structure, and the workstations are rotated to corresponding positions in sequence, and the bottom film loading unit, the spring loading unit, and the top film loading unit pick up the parts accordingly, and place them on the workstations in sequence to complete the assembly, so that a fully automated three-component tool holder assembly process can be realized, and the assembly efficiency is high.

Description

Technical Field

[0001] The invention relates to an assembly device and method for a utility knife, and in particular to an improvement of an assembly device and method for a blade handle component of a utility knife. Background Art

[0002] The utility knife in the prior art generally includes a handle as a body, a blade slot for accommodating a blade is provided on the body, and a blade pusher, referred to as a blade pusher, is provided at the rear end of the blade and cooperates with the slide grooves or toothed structures on both sides of the blade slot, so as to adjust the length of the blade pushed out to the front end of the blade slot. A better blade pusher is also provided with a locking structure, and when the blade is pushed out to a suitable length, the position of the blade pusher relative to the blade slot can be adjusted to lock the blade length.

[0003] In the assembly of the pusher of the art knife, there is already an automated assembly equipment for the existing two-piece structure, which can be seen in the previous patent application of the applicant. However, for the three-piece structure, which includes a spring structure that automatically achieves locking, the manual assembly process of this pusher is very laborious and complicated, and the workers' work efficiency is very low. Almost no workers are willing to engage in this processing. In other words, its labor cost is extremely high (as the labor cost increases, the time cost becomes higher and higher).

[0004] There is a common three-piece structure in the prior art knife holder, such as Figure 1a and Figure 1b As shown, it includes a bottom film 910 with a push hole at the rear end of the blade, and a flared spring piece 920 is arranged on the bottom film 910, which is in an eight-shaped shape with the top ends connected together, and can be snapped into a snap position 911 on the bottom film 910. A top film 930 is also arranged above the bottom film 910 through a snap-fit ​​fixing structure, and a corresponding slide groove is arranged on the bottom film 910, so that the top film 930 can slide left and right on the bottom film 910, corresponding to the two positions of whether the knife handle locks the blade. Through the setting of this knife handle, the push adjustment of the utility knife blade can be easily realized, and the locking and unlocking of the blade position can be realized by adjusting the position of the top film 930. The service life of this knife handle is also relatively long.

[0005] However, this type of blade is a hassle during assembly. In the actual workshop assembly process, the parts are usually produced and processed first, and then assembled manually. Since this three-part blade has more parts than other types, and the assembly is more difficult due to the small size and high elasticity of the shrapnel, the workers' assembly efficiency is low and the difficulty is too great, which has always troubled the assembly workshop.

[0006] Therefore, the prior art still needs to be improved and developed. Summary of the invention

[0007] The purpose of the present invention is to provide a device and method for assembling a knife handle of a utility knife. In view of the problem that the three-component knife handle assembly process in the prior art is complicated and inefficient, an apparatus and implementation method for assembling the knife handle in an automated and efficient manner are provided.

[0008] The technical solution of the present invention is as follows:

[0009] A device for assembling a utility knife handle, comprising a turntable structure with multiple stations, wherein at least one bottom sheet feeding unit, one spring sheet feeding unit, and one top sheet feeding unit are arranged around the turntable structure;

[0010] The bottom sheet feeding unit is arranged in the upstream direction of the spring sheet feeding unit, and the top sheet feeding unit is arranged in the downstream direction of the spring sheet feeding unit;

[0011] The film loading unit is used to adjust the position of the film to be assembled, and pick it up and put it into a station of the turntable structure;

[0012] The spring piece loading unit is used to adjust the position of the spring pieces to be assembled, and pick them up and place them on the base film in the work station;

[0013] The top sheet loading unit is used to adjust the position of the top sheet to be assembled, and pick it up and place it on the bottom sheet with the spring sheet placed therein.

[0014] In the utility knife assembly device, the film loading units are provided in plurality, which are respectively used for loading films of different types and are arranged at the periphery of the turntable structure.

[0015] The device for assembling the utility knife handle, wherein the loading structure adopts a driving mode in which the inner ring is fixed and the outer ring is rotated, and a first mechanical picking component, a second mechanical picking component and a third mechanical picking component are arranged on the inner ring at positions corresponding to the bottom film feeding unit, the spring sheet feeding unit and the top film feeding unit, each mechanical picking component includes a picking head moving radially and a slide rail driving the picking head longitudinally, and the picking heads are respectively arranged to pick up the bottom film, the spring sheet and the top film.

[0016] In the utility knife assembly device, each workstation on the turntable structure is configured as two for reuse.

[0017] Any of the above-mentioned devices for assembling a utility knife handle, wherein a pressing station is further provided on the turntable structure in the downstream direction of the top sheet feeding unit.

[0018] Any of the above-mentioned devices for assembling a utility knife handle, wherein an inspection station is further provided on the turntable structure in the downstream direction of the top sheet feeding unit.

[0019] The device for assembling the utility knife handle, wherein a picking unit is provided on the turntable structure in the existing direction of the inspection station, which is provided with a rotatable picking head, and through the rotation of the picking head, qualified or unqualified products are picked and output corresponding to the inspection signal of the inspection station.

[0020] In the utility knife assembly device, the inner ring of the turntable structure is arranged higher than the outer ring.

[0021] In the utility knife assembly device, the bottom sheet feeding unit, the spring sheet feeding unit and the top sheet feeding unit respectively adopt a vibration plate feeding method.

[0022] A method for assembling the utility knife handle includes the following steps:

[0023] A. Load the film from the film loading unit to a station of the turntable structure;

[0024] B. The turntable rotates to a position corresponding to the spring sheet feeding unit, and the spring sheet feeding unit picks up the spring sheet and places it on the bottom film;

[0025] C. The turntable rotates to a position corresponding to the top sheet loading unit, and the top sheet loading unit picks up the top sheet and places it on the bottom sheet with the spring sheet.

[0026] The present invention provides a device and method for assembling utility knife tools. Due to the use of multiple workstations arranged on a turntable structure, the workstations are rotated to corresponding positions in sequence. The bottom film loading unit, the spring piece loading unit and the top film loading unit pick up the parts accordingly and place them on the workstations in sequence to complete the assembly. A fully automated three-component tool assembly process can be achieved. The assembly efficiency is high and the cost is low, and the problem of manual assembly of complex devices can be completely solved. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1a and Figure 1b It is a schematic diagram of a knife holder in the prior art.

[0028] Figure 2 The present invention is a three-dimensional schematic diagram of a device for assembling a utility knife handle.

[0029] Figure 3 The figure is a schematic diagram of the turntable structure of the utility knife assembly device of the present invention.

[0030] Figure 4It is a schematic diagram of the film loading unit of the utility knife assembly device of the present invention.

[0031] Figure 5 It is a schematic diagram of the first mechanical pickup component of the utility knife handle assembly device of the present invention.

[0032] Figure 6 It is a schematic diagram of the spring feeding unit of the utility knife blade assembly device of the present invention.

[0033] Figure 7 It is a schematic diagram of the top sheet loading unit of the utility knife assembly device of the present invention.

[0034] Figure 8 It is a schematic diagram of a finished product discharging unit of the utility knife assembly device of the present invention.

[0035] Fig. 9 The figure is a flow chart of the method for implementing the utility knife blade assembly device of the present invention.

[0036] Fig.10 It is a schematic diagram of another embodiment of the turntable structure of the utility knife handle assembly device of the present invention. DETAILED DESCRIPTION

[0037] The preferred embodiments of the present invention are described in detail below.

[0038] The present invention is directed to a three-piece utility knife pusher structure, and realizes an automatic assembly device and method, such as Figure 2 As shown, the central turntable structure 110 is used to set different workstations 111, from loading the bottom film to adding the workstation; to the adjustment position of the spring sheet, moving into the workstation and putting it into the corresponding position in the bottom film; to the adjustment position of the top film, and while pushing the elastic deformation of the spring sheet, the top film and the bottom film are automatically matched and snapped into each other to form a push-up finished product, which can be tested and discharged through the corresponding workstations, and finally transferred to the offline receiving frame. The turntable structure 110 is set on a frame or a machine 101, and the control circuit, motor, power supply and other components can be set in the frame or the machine 101.

[0039] In the assembly device of the utility knife holder of the present invention, Figure 3 As shown, the turntable structure 110 adopts different structural modes of the inner ring 112 and the outer ring 113. The inner ring 112 is set as a fixed structure, and the outer ring 113 is set in a rotatable manner, and its rotation needs to be controlled by a driver. The driver needs to be debugged to control the rotation of the turntable, so as to facilitate the rotation frequency of the workstation. In a preferred embodiment, the inner ring 112 is set higher than the outer ring 113, so that the workstation 111 and the corresponding mechanical picking component can be easily set, and the control, transportation and picking of parts can be easily realized.

[0040] For the convenience of description, the direction of rotation of the turntable structure 110 of the present invention can be set to the direction to be rotated to be downstream, and the opposite direction is upstream. It should be clarified that the upstream and downstream are relative directions and are not a limitation on the protection scope of the claims. In the utility knife assembly device of the present invention, at least one film feeding unit 120 is distributed around the turntable structure 110, such as Figure 2 As shown, the spring sheet loading unit 130 and the top sheet loading unit 140, and the bottom sheet loading unit 120 is located upstream of the rotating direction of the turntable structure, that is, the turntable of the turntable structure 110 rotates (specifically, the outer ring rotates), and the vacant workstation is first moved to the position corresponding to the bottom sheet loading unit 120. The bottom sheet loading unit 120 is used to load the bottom sheet into the workstation.

[0041] The film loading unit 120 is provided with a first vibration plate 121 for adjusting the position of the film so that the pickup head of the loading unit enters the first queuing channel 122 in a correct posture and then feeds under the pickup head to facilitate picking up the film. Figure 2 As shown, the film loading unit 120 has two settings according to the film model, and one of them can be selected for operation according to the setting requirements.

[0042] The spring sheet feeding unit 130 is arranged in the downstream direction of the rotation direction of the turntable structure 110 compared to the film feeding unit, and is used to feed the spring sheets, and it also includes a second vibration plate 131, which is used to adjust the position of the spring sheets by vibration, and then put the spring sheets in the correct posture into the second queuing channel 132, so that the picking head of the spring sheet feeding unit can pick up the spring sheets in the correct posture. The film is provided with a mounting position corresponding to the spring sheet, so that the spring sheet feeding unit 130 can pick up the spring sheets and place them in the appropriate position.

[0043] The top sheet loading unit 140 is arranged in the direction downstream of the rotating direction of the turntable structure 110 compared to the spring sheet loading unit, and is used to load the top sheet, including a third vibration plate 141, which is used to adjust the position of the top sheet to be assembled by vibration, and transport it into a third queuing channel 142, so as to facilitate the picking head of the top sheet loading unit to pick up the top sheet in the correct posture. The top sheet loading unit 140 can place the top sheet on the bottom sheet that has been assembled with the spring sheet, so as to complete the assembly. Figure 2 As shown, the top sheet feeding unit is set to five according to common models, and the driver can control to select one of the top sheet feeding units to work. Through the feeding units arranged along the workstations, different types of knife engines can be assembled. Figure 2In the preferred embodiment shown, the same turntable structure device can be used to assemble five different types of blades. Moreover, the assembly process of each type of blade is fully automated, which improves the assembly efficiency. Different types of bottom sheets or top sheets are compatible with the same spring sheet.

[0044] In each feeding unit, whether it is the bottom sheet feeding unit, the spring sheet feeding unit or the top sheet feeding unit, corresponding mechanical picking components are used to work, namely, the first mechanical picking component 123, the second mechanical picking component 133, and the third mechanical picking component 143. Figure 4 and Figure 5 As shown, it includes a longitudinal guide rail support 151 installed on the inner ring 112 of the turntable structure, a longitudinally driven slide rail is arranged on the longitudinal guide rail support 151, and a picking head 152 which is movable radially along the turntable structure is matched with the longitudinal slide rail. The picking head is arranged to be a controlled clamping claw that can move from both sides to the middle to clamp according to different picking components, that is, the bottom film, the spring sheet or the top film, so that the corresponding components that have been adjusted in position can be clamped and placed on the work station.

[0045] like Figure 6 and Figure 7 Shown are schematic diagrams of the workstations of the spring sheet loading unit 130 and the top sheet loading unit 140, respectively, wherein the corresponding second mechanical pickup assembly 133 and the third mechanical pickup assembly 143 are respectively installed and fixed on the inner ring 112 of the turntable structure 110, and the workstations 111 are arranged on the outer ring 113 at predetermined intervals, so that by controlling the rotation of the outer ring 113, the distributed workstations can be rotated to the corresponding operating assembly positions in turn, thereby performing corresponding assembly operations.

[0046] In a preferred embodiment, if Fig.10 As shown, each station 111 can be set in plural, that is, set to two or more than three as a group, so that the assembly efficiency can be improved. Accordingly, it is necessary to set the pickup head on the mechanical pickup assembly to have two to three working positions so that multiple parts can be assembled and processed at the same station at the same time. In another embodiment, the pickup head can be set in plural, for example, two or three side by side, just corresponding to the plural position setting of the station.

[0047] If an error occurs at a certain station, for example, the upstream should pick up but does not pick up the corresponding component, such as the bottom sheet, spring sheet, top sheet are empty, or the picked up components are in the wrong posture, then an error may occur, resulting in assembly problems at this station. At the downstream position of the rotation direction of the turntable structure, downstream of the top sheet feeding unit, there is also a pressing station 150 for pressing the top sheet so that the top sheet, spring sheet and bottom sheet are assembled and matched with each other, such as Figure 8 A detection station 160 is also provided downstream of the pressing station 150, or downstream of the top sheet feeding unit 140 when no pressing station is provided. Figure 8 As shown, a downward detection rod 161 is provided on the detection station 160 for detecting the thickness of the utility knife handle 170 assembled on the station. Only products that meet the thickness after assembly are qualified products, and a qualified signal will be transmitted to the control system. If the thickness does not match the thickness of the knife handle after assembly, an unqualified signal will be transmitted to the control system. The qualified signal / unqualified signal can be sent to the control system to realize the processing control of the picking unit 180 on the downstream discharge station, so that qualified products and unqualified products can be sorted accordingly.

[0048] The picking unit 180 is also provided with a mechanical picking arm fixed on the inner ring 112. Preferably, a slide rail is provided, a radial slide rail is provided on the longitudinal slide rail, a picking head is provided on the radial slide rail, and a rotation mode is provided on the driving of the picking head, so that qualified / unqualified parts can be dropped when rotated to different positions, thereby falling to different positions, and guide slopes 181 and 182 are provided at different positions, so that qualified / unqualified assembled utility knife blades can be discharged to corresponding positions.

[0049] The bottom film loading unit 120, the spring piece loading unit 130 and the top film loading unit 140 respectively adopt the feeding method of the vibration plate. The setting of each vibration plate requires a debugging process. The posture of the corresponding parts is adjusted by vibration, and the parts that do not meet the posture are eliminated and sent back to the vibration plate during the progressive vibration process, so that the automatic feeding process from the corresponding vibration plate can be realized. From the vibration plate along the corresponding feeding channel until it enters the clamping position of the pickup head, and is finally picked up and prevented from going to the work station in turn, the assembly device of the utility knife tool holder of the present invention can realize the automated assembly process, and two bottom film loading units and five top film loading units can be set according to needs. The bottom film loading unit and top film loading unit selected for use can be controlled by the control system, so as to facilitate the assembly process of the tool holder.

[0050] The present invention also provides a method for assembling the utility knife blade. Fig. 9 As shown, the following steps are included:

[0051] First, the film is loaded from the film loading unit onto a certain station of the turntable structure;

[0052] Secondly, the turntable structure rotates to the position corresponding to the spring sheet feeding unit, and the spring sheet feeding unit picks up the spring sheet and places it at the corresponding position on the bottom film;

[0053] Third, the turntable structure rotates to the position of the top sheet loading unit, and the top sheet loading unit picks up the top sheet and places it on the bottom sheet on which the spring sheet has been placed, and after lamination, a completely assembled utility knife handle is formed.

[0054] The assembled utility knife blade is placed on the workstation, and then goes to the inspection workstation through the rotation of the turntable structure, and enters the discharge workstation after being inspected for eligibility, and different discharge channels are selected according to the inspection results. In order to facilitate the continuous rotation of the turntable structure, thereby forming an assembly line operation, the workstations of the present invention are arranged at equal intervals, so that the pickup head arrangement positions of the mechanical pickup components at the corresponding workstation positions all adopt corresponding intervals, so that each time the turntable rotates once, the workstation and the blade blade to be assembled thereon and its parts can sequentially enter the next workstation, so that the blade blade can be assembled continuously.

[0055] In the utility knife blade assembly device and implementation method of the present invention, by setting the workstation continuous conversion mode of the turntable structure, different workstations can be set at the same interval and assemble and process continuously, which is low in cost and high in efficiency.

[0056] It should be understood that those skilled in the art can make improvements or changes based on the above description, and all these improvements and changes should fall within the scope of protection of the appended claims of the present invention.

Claims

1. A device for assembling a utility knife, comprising a turntable structure with multiple stations, characterized in that: At least one bottom sheet feeding unit, one spring sheet feeding unit, and one top sheet feeding unit are distributed around the turntable structure; The bottom sheet feeding unit is arranged in the upstream direction of the spring sheet feeding unit, and the top sheet feeding unit is arranged in the downstream direction of the spring sheet feeding unit; The film loading units are provided in a plurality, respectively used for loading films of different types, and arranged at the periphery of the turntable structure; The turntable structure adopts a driving mode in which the inner ring is fixed and the outer ring rotates. A plurality of the workstations are arranged on the outer ring according to a predetermined interval, and a first mechanical pickup assembly, a second mechanical pickup assembly and a third mechanical pickup assembly are arranged on the inner ring at positions corresponding to the bottom film feeding unit, the spring sheet feeding unit and the top film feeding unit. Each mechanical pickup assembly includes a pickup head moving along the radial direction of the turntable structure, and a slide rail driving the pickup head longitudinally. The pickup heads are respectively arranged to pick up the bottom film, the spring sheet and the top film; Each station on the turntable structure is set to two or more than three for multiplexing, and the number of the pickup heads is set corresponding to the number of the stations; On the turntable structure, a pressing station is also arranged in the downstream direction of the top sheet feeding unit; The film loading unit is used to adjust the position of the film to be assembled, and the corresponding first mechanical picking component is picked up and placed into a station of the turntable structure; The spring piece feeding unit is used to adjust the position of the spring piece to be assembled, and the corresponding second mechanical picking component picks it up and places it on the bottom film in the station; The top sheet loading unit is used to adjust the position of the top sheet to be assembled, and the corresponding third mechanical picking component picks up and places it on the bottom sheet with the spring sheet placed therein.

2. The utility knife assembly device according to claim 1, characterized in that: On the turntable structure, a detection station is also arranged in the downstream direction of the top sheet feeding unit.

3. The utility knife assembly device according to claim 2, characterized in that: On the turntable structure, a picking unit is also arranged in the downstream direction of the detection station, which is provided with a rotatable picking head. Through the rotation of the picking head, qualified or unqualified products are picked and output corresponding to the detection signal of the detection station.

4. The utility knife assembly device according to claim 1, characterized in that: The inner ring of the turntable structure is arranged higher than the outer ring.

5. The utility knife assembly device according to claim 1, characterized in that: The bottom sheet feeding unit, the spring sheet feeding unit and the top sheet feeding unit respectively adopt a vibration plate feeding method.

6. A method for assembling a utility knife blade using the utility knife blade assembly device of claim 1, comprising the following steps: A. Load the film from the film loading unit to a station of the turntable structure; B. The turntable rotates to a position corresponding to the spring sheet feeding unit, and the spring sheet feeding unit picks up the spring sheet and places it on the bottom film; C. The turntable rotates to a position corresponding to the top sheet loading unit, and the top sheet loading unit picks up the top sheet and places it on the bottom sheet with the spring sheet, and after lamination, a completely assembled utility knife handle is formed.

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