Thread trimming machine

Abstract

The utility model belongs to the technical field of thread trimming machine. It solves the problem of cleaning difficulty of thread storage chamber of prior art. Provide a kind of thread trimming machine, the mobile seat and the thread storage barrel placed on mobile seat are arranged in the case, the side wall of the case is equipped with the access opening for taking and placing thread storage barrel, the mobile seat can move up and down relative to the case, and the bottom wall of the case and mobile seat are connected with first elastic member and locking member for locking mobile seat on the case, the mobile seat can be locked by the locking member when being moved down, and when the locking member is unlocked, under the action of the first elastic member, the mobile seat can press the thread storage barrel against the inner top wall of the case and cover the thread end suction inlet, and the mouth along of the thread storage barrel and the inner top wall of the case form abutting seal. The utility model has the advantages of being able to solve the cleaning difficulty of the thread storage chamber of the existing thread trimming machine.

Description

Technical Field

[0001] This utility model belongs to the technical field of wire cutting machines and relates to a wire cutting machine. Background Technology

[0002] Thread trimming machines are mainly used to automatically cut off the thread ends of fabrics, clothing, bags, and other products, and automatically collect the thread ends. They are suitable for the sewing industry and processing scenarios that require the removal of thread residue. For example, Chinese patent literature discloses an automatic power-off thread trimming machine (authorization announcement number: CN208933690U), which includes a housing, a thread trimming device, a suction motor, and an automatic power-off device. The housing has a thread storage chamber, a suction hole on the side wall that communicates with the thread storage chamber, and a receiving hole on the top. The working end of the thread trimming device is movably installed in the receiving hole, and the connecting end is connected to the suction hole. The suction motor is located inside the housing and is used to suck up the thread ends cut by the thread trimming device to the thread storage chamber.

[0003] The automatic power-off thread cutter has the following shortcomings during use: Because the thread cutter is installed under the sewing machine table, it is difficult to clean the thread storage chamber of the thread cutter. If the thread cutter is disassembled for each cleaning, it is cumbersome. In addition, the overall weight of the thread cutter is relatively heavy, and cleaning the thread storage chamber of the disassembled thread cutter is still quite difficult. Summary of the Invention

[0004] The purpose of this invention is to address the aforementioned problems in existing technologies by proposing a wire cutting machine. The technical problem this invention aims to solve is the difficulty in cleaning the wire storage chamber of existing wire cutting machines.

[0005] The objective of this utility model can be achieved through the following technical solutions:

[0006] A wire trimming machine includes a chassis with a wire inlet on its inner top wall. The machine is characterized by having a movable base and a wire storage bin placed on the movable base inside the chassis. A loading / unloading opening for the wire storage bin is provided on the side wall of the chassis. The movable base is movable vertically relative to the chassis. A first elastic element and a locking element for locking the movable base onto the chassis are connected between the bottom wall of the chassis and the movable base. The movable base is movable downwards and locked by the locking element. When the locking element is unlocked, under the action of the first elastic element, the movable base presses the wire storage bin against the inner top wall of the chassis, covering the wire inlet, and a sealing seal is formed between the edge of the wire storage bin and the inner top wall of the chassis.

[0007] This wire cutter replaces the traditional wire storage chamber with an independent wire storage bin. When cleaning is required, the user simply holds the wire storage bin with both hands and presses it down to move the movable seat downwards and lock it in place by the locking mechanism. At this time, the movable seat is located below or flush with the lower edge of the pick-up / drop-off port, allowing the wire storage bin to be easily removed from the pick-up / drop-off port of the machine. When the locking mechanism is unlocked, under the action of the first elastic element, the movable seat can press the wire storage bin against the inner top wall of the machine and cover the wire end inlet. Furthermore, a seal is formed between the edge of the wire storage bin and the inner top wall of the machine, allowing the wire cutter to operate normally again, thereby solving the problem of difficult cleaning of the wire storage chamber in existing wire cutters.

[0008] In the aforementioned wire cutting machine, the locking component includes a fixed frame vertically fixed to the bottom wall of the machine casing. A movable block is slidably connected to the fixed frame. The top of the movable block has a connecting post extending upward from the fixed frame. The connecting post is fixedly connected to the movable seat. A second elastic element is connected between the bottom of the movable block and the inner bottom wall of the fixed frame. The side wall of the movable block has a heart-shaped locking groove. The locking groove includes a first locking section and a second locking section, both V-shaped, arranged vertically. A connecting rod is hinged to the fixed frame. The connecting rod has a horizontally arranged locking post. The locking post is embedded in the locking groove and can move along the locking groove. When the locking post is stuck in the first locking section, the movable seat is locked by the locking component. When the locking post is stuck in the second locking section, the locking component is unlocked. The locking mechanism described above can better switch between the locking and unlocking states. In addition, besides the above structure, the locking mechanism can also adopt a screw and nut combination structure. Specifically, a vertically set screw is fixed to the bottom of the moving base, and the lower end of the screw passes through the housing and is threaded with a nut. The locking and unlocking positions of the locking mechanism can be switched by adjusting the position of the nut.

[0009] In the aforementioned wire cutting machine, the width of the locking groove is greater than the radial dimension of the locking pin, the length of the connecting pin is greater than the distance between the first and second locking sections, and the distance between the movable block and the inner bottom wall of the fixed frame is greater than the distance between the first and second locking sections. The wider locking groove ensures that when the locking element is unlocked, the movable seat can move upwards to a certain position under the action of the first elastic element, ensuring a tight seal between the wire storage bin and the machine housing. Furthermore, the greater length of the connecting pin and the greater distance between the movable block and the inner bottom wall of the fixed frame ensure smoother switching between the locking and unlocking states of the locking element.

[0010] In the aforementioned wire cutting machine, the inner top wall of the machine housing has an annular groove, and the wire end suction port is located inside the annular groove. When the locking member is unlocked, the rim of the wire storage bin is embedded in the annular groove, and a sealing contact is formed between the rim of the wire storage bin and the bottom wall of the annular groove. The groove wall of the annular groove can limit the movement of the wire storage bin, preventing it from shifting during operation, and allowing the wire storage bin to better store the wire ends sucked in from the wire end suction port.

[0011] In the aforementioned wire cutting machine, a sealing ring is also connected to the rim of the wire storage bin. This sealing ring forms a tight seal with the bottom wall of the annular groove. The sealing ring better ensures a tight seal between the wire storage bin and the machine housing, guaranteeing the airtightness of the connection point and preventing hard contact between the wire storage bin and the machine housing, thus extending the service life of the components.

[0012] In the aforementioned wire cutting machine, the upper surface of the movable seat has a downwardly recessed positioning groove. The wire storage bin is placed within the positioning groove, and the bottom of the wire storage bin is clearance-fitted with the side wall of the positioning groove. The groove wall of the positioning groove can limit the movement of the wire storage bin, allowing the wire storage bin to better store the wire ends sucked in from the wire end suction port.

[0013] In the aforementioned wire cutting machine, the movable base is disc-shaped, and the locking member is connected to the center of the movable base. The first elastic member is a spring, and there are multiple springs, which are evenly distributed around the outer side of the locking member along the circumference of the movable base. This allows for better switching between the first and second locking positions of the locking member by pressing down on the wire storage bin and the movable base. It also allows the multiple first elastic members to act more effectively on the movable base, enabling the movable base to press the wire storage bin against the inner top wall of the machine housing and cover the wire inlet.

[0014] In the aforementioned wire cutting machine, a cylindrical guide seat is fixedly connected to the bottom wall of the machine housing. A guide rod is vertically inserted into the guide seat. First elastic elements are simultaneously sleeved on the guide seat and the guide rod. The upper end of the guide rod is fixedly connected to the movable seat, and the lower end of the guide rod extends out of the machine housing and can move up and down along the guide seat. The lower end of the guide rod is also provided with an anti-detachment protrusion for limiting its engagement with the guide seat. This prevents displacement of the first elastic elements and allows several first elastic elements to act vertically on the movable seat, enabling the movable seat to better press the wire storage bin against the inner top wall of the machine housing and cover the wire end inlet.

[0015] Compared with existing technologies, the advantages of this wire cutting machine are as follows: When in use, the user only needs to press down on the wire storage bin to move the moving seat downwards and lock it with the locking member. At this time, the moving seat is located below or flush with the lower edge of the pick-up and drop-off port, so that the wire storage bin can be easily taken out from the pick-up and drop-off port. When the locking member is unlocked, under the action of the first elastic member, the moving seat can press the wire storage bin against the inner top wall of the machine box and cover the wire end inlet. The edge of the wire storage bin and the inner top wall of the machine box form a sealing abutment, so that the wire cutting machine can work normally again, thereby solving the problem of difficult cleaning of the wire storage chamber of existing wire cutting machines. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the wire cutting machine when the movable seat is locked by the locking component.

[0017] Figure 2 This is a cross-sectional view of the wire cutter when the movable seat is locked by the locking mechanism.

[0018] Figure 3 This is a partial 3D structural diagram of the wire cutting machine after a portion of the casing has been removed.

[0019] Figure 4 This is a three-dimensional structural diagram of the wire cutter after the wire storage bin has been removed.

[0020] Figure 5 This is a schematic diagram of the locking mechanism (after removing the connecting rod) when the moving seat of this wire cutting machine is locked by the locking mechanism.

[0021] Figure 6 This is a schematic diagram of the wire cutter's structure when the locking mechanism is unlocked.

[0022] Figure 7 This is a schematic diagram of the locking mechanism of this wire cutter (after removing the connecting rod) when it is unlocked.

[0023] In the diagram, 1. Chassis; 1a. Cable intake port; 1b. Loading / unloading port; 1c. Annular groove; 2. Movable seat; 2a. Positioning groove; 3. Cable storage bin; 3a. Edge; 4. First elastic element; 5. Locking element; 5a. Fixed frame; 5b. Movable block; 5b1. Connecting post; 5b2. Locking groove; 5b21. First locking section; 5b22. Second locking section; 5c. Connecting rod; 5c1. Locking post; 6. Second elastic element; 7. Sealing ring; 8. Guide seat; 9. Guide rod; 10. Anti-detachment protrusion. Detailed Implementation

[0024] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0025] A wire trimming machine, as shown in the reference Figure 1-7 The device includes a chassis 1, the inner top wall of which has a wire inlet 1a. The chassis 1 is characterized by having a movable base 2 and a wire storage bin 3 placed on the movable base 2 inside the chassis 1. The side wall of the chassis 1 has an opening 1b for taking out and placing the wire storage bin 3. The movable base 2 can move up and down relative to the chassis 1. A first elastic element 4 and a locking element 5 for locking the movable base 2 onto the chassis 1 are connected between the bottom wall of the chassis 1 and the movable base 2. The movable base 2 can move downwards and be locked by the locking element 5. When the locking element 5 is unlocked, under the action of the first elastic element 4, the movable base 2 can press the wire storage bin 3 against the inner top wall of the chassis 1 and cover the wire inlet 1a. A sealing seal is formed between the opening 3a of the wire storage bin 3 and the inner top wall of the chassis 1.

[0026] Reference Figure 3 , Figure 5 and Figure 7 Specifically, the locking component 5 includes a fixed frame 5a vertically fixed to the bottom wall of the chassis 1. A movable block 5b is slidably connected inside the fixed frame 5a. The top of the movable block 5b has a connecting post 5b1 extending upward from the fixed frame 5a. The connecting post 5b1 is fixedly connected to the movable seat 2. A second elastic element 6 is connected between the bottom of the movable block 5b and the inner bottom wall of the fixed frame 5a. The side wall of the movable block 5b has a heart-shaped locking groove 5b2. The locking groove 5b2 includes a first locking section 5b21 and a second locking section 5b22, which are arranged vertically and are both V-shaped. A connecting rod 5c is hinged to the fixed frame 5a. The connecting rod 5c has a horizontally arranged locking post 5c. 1. The locking pin 5c1 is embedded in the locking groove 5b2 and can move along the locking groove 5b2. When the locking pin 5c1 is stuck in the first locking section 5b21, the moving seat 2 is locked by the locking member 5. When the locking pin 5c1 is stuck in the second locking section 5b22, the locking member 5 is unlocked.

[0027] Reference Figure 3 , Figure 5 and Figure 7 More specifically, the width of the locking groove 5b2 is greater than the radial dimension of the locking pin 5c1, the length of the connecting pin 5b1 is greater than the distance between the first locking segment 5b21 and the second locking segment 5b22, and the distance between the movable block 5b and the inner bottom wall of the fixed frame 5a is greater than the distance between the first locking segment 5b21 and the second locking segment 5b22.

[0028] In this embodiment, the inner top wall of the chassis 1 preferably has an annular groove 1c, and the wire inlet 1a is located inside the annular groove 1c. When the locking member 5 is unlocked, the rim 3a of the wire storage bin 3 is embedded in the annular groove 1c, and a sealing contact is formed between the rim 3a of the wire storage bin 3 and the bottom wall of the annular groove 1c. A sealing ring 7 is also connected to the rim 3a of the wire storage bin 3, and the sealing ring 7 can form a sealing contact with the bottom wall of the annular groove 1c. Preferably, the upper surface of the movable base 2 has a downwardly recessed positioning groove 2a, and the wire storage bin 3 is placed in the positioning groove 2a, with a clearance fit between the bottom of the wire storage bin 3 and the side wall of the positioning groove 2a. Preferably, the wire storage bin 3 is made of transparent material, allowing a direct view of the interior of the wire storage bin 3.

[0029] Reference Figure 1 , Figure 2 and Figure 3 More specifically, the movable seat 2 is disc-shaped, the locking member 5 is connected to the center of the movable seat 2, the first elastic member 4 is a spring and there are multiple springs, which are evenly distributed on the outside of the locking member 5 along the circumference of the movable seat 2; a cylindrical guide seat 8 is fixedly connected to the bottom wall of the housing 1, and a guide rod 9 is vertically inserted into the guide seat 8. The first elastic members 4 are all sleeved on the guide seat 8 and the guide rod 9. The upper end of the guide rod 9 is fixedly connected to the movable seat 2, and the lower end of the guide rod 9 extends out of the housing 1 and can move up and down along the guide seat 8. The lower end of the guide rod 9 is also provided with an anti-detachment protrusion 10 for forming a limiting cooperation with the guide seat 8.

[0030] The working principle of this wire trimming machine is explained below:

[0031] Initially, the locking pin 5c1 is stuck in the second locking section 5b22, and the locking element 5 is in the unlocked state. When it is necessary to remove the cable storage bin 3 from the chassis 1, the user only needs to press down on the cable storage bin 3. The cable storage bin 3 can drive the moving base 2 to move downward (in actual operation, the user can hold the cable storage bin 3 with both hands and press down on the moving base 2 through the cable storage bin 3. Of course, the user can also drive the moving base 2 downward first, and the cable storage bin 3 will also move downward with the moving base 2 under the action of gravity). Then, the movable block 5b connected to the moving base 2 through the connecting pin 5b1 can also move downward synchronously with the moving base 2. During the downward movement of the movable block 5b, the locking pin 5c1 on the connecting rod 5c is engaged. c1 moves along the locking groove 5b2 (during which the connecting rod 5c swings around its hinge point with the fixed frame 5a) until the locking pin 5c1 moves from the second locking section 5b22 to the first locking section 5b21. At this time, the user releases the cable storage bin 3, and the locking pin 5c1 remains in the first locking section 5b21 (at this time, the connecting rod 5c is approximately vertical). At this time, the moving seat 2 is locked by the locking member 5, and the first elastic member 4 is compressed by the moving seat 2. The moving seat 2 moves downward to a position below or flush with the lower edge of the retrieval port 1b, and the cable storage bin 3 disengages from the inner top wall of the chassis 1, so that the cable storage bin 3 can be easily removed from the retrieval port 1b (refer to...). Figure 6 ).

[0032] Similarly, after the cable storage bin 3 is cleaned, the user first places the cable storage bin 3 vertically in the positioning groove 2a of the moving base 2. Then, the user only needs to press down on the cable storage bin 3 (in actual operation, the user can hold the cable storage bin 3 with both hands and press down on the moving base 2 through the cable storage bin 3; of course, the user can also drive the moving base 2 downward first, and the cable storage bin 3 will also move downward with the moving base 2 under the action of gravity). The locking pin 5c1, which is stuck in the first locking section 5b21, can move along the locking groove 5b2 to the second locking section 5b22 (during this process, the connecting rod 5c swings around its hinge point with the fixed frame 5a; the first locking section 5b21 is arc-shaped as a whole, and the section that separates from the first locking section 5b21 is relatively gentle, which makes it easy for the locking pin 5c1 to smoothly separate from the first locking section 5b21 and move to the second locking section 5b22 under the action of external force). At this time, the user releases the cable storage bin 3, and the locking pin 5c1... 1. The device remains in the second locking section 5b22 (at this time, the connecting rod 5c is in a vertical state), the locking member 5 is in the unlocked state again, and the moving seat 2 moves back to above the lower edge of the pick-up and drop-off port 1b. At the same time, since the groove width of the locking groove 5b2 is greater than the radial dimension of the locking pin 5c1, under the action of the elastic force of the first elastic member 4, the moving seat 2 can press the wire storage bin 3 against the inner top wall of the chassis 1 and cover the wire end inlet 1a. Moreover, the sealing ring 7 on the opening edge 3a of the wire storage bin 3 forms a sealing abutment with the bottom wall of the annular groove 1c (see reference). Figure 1 ).

[0033] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

Claims

1. A wire trimming machine, comprising a housing (1), wherein the inner top wall of the housing (1) has a wire inlet (1a), characterized in that, The chassis (1) is provided with a movable seat (2) and a cable storage bin (3) placed on the movable seat (2). The side wall of the chassis (1) is provided with a loading and unloading port (1b) for loading and unloading the cable storage bin (3). The movable seat (2) can move up and down relative to the chassis (1). A first elastic member (4) and a locking member (5) for locking the movable seat (2) on the chassis (1) are connected between the bottom wall of the chassis (1) and the movable seat (2). The movable seat (2) can move down and be locked by the locking member (5). When the locking member (5) is unlocked, under the action of the first elastic member (4), the movable seat (2) can press the cable storage bin (3) against the inner top wall of the chassis (1) and cover the cable inlet (1a). The rim (3a) of the cable storage bin (3) and the inner top wall of the chassis (1) form a sealing abutment.

2. A thread trimming machine according to claim 1, characterized in that The locking element (5) includes a fixed frame (5a) vertically fixed to the bottom wall of the chassis (1). A movable block (5b) is slidably connected inside the fixed frame (5a). The top of the movable block (5b) has a connecting post (5b1) extending upward from the fixed frame (5a). The connecting post (5b1) is fixedly connected to the movable seat (2). A second elastic element (6) is connected between the bottom of the movable block (5b) and the inner bottom wall of the fixed frame (5a). The side wall of the movable block (5b) has a heart-shaped locking groove (5b2). The locking groove (5b2) includes... The frame has a first locking section (5b21) and a second locking section (5b22) arranged vertically and both in a V-shape. A connecting rod (5c) is hinged to the fixed frame (5a). The connecting rod (5c) has a horizontally arranged locking pin (5c1). The locking pin (5c1) is embedded in the locking groove (5b2) and can move along the locking groove (5b2). When the locking pin (5c1) is stuck in the first locking section (5b21), the moving seat (2) is locked by the locking member (5). When the locking pin (5c1) is stuck in the second locking section (5b22), the locking member (5) is unlocked.

3. A thread trimming machine according to claim 2, wherein The width of the locking groove (5b2) is greater than the radial dimension of the locking pin (5c1), the length of the connecting pin (5b1) is greater than the distance between the first locking section (5b21) and the second locking section (5b22), and the distance between the movable block (5b) and the inner bottom wall of the fixed frame (5a) is greater than the distance between the first locking section (5b21) and the second locking section (5b22).

4. A thread trimming machine according to claim 1 or 2 or 3, characterized in that The inner top wall of the chassis (1) has an annular groove (1c), and the wire inlet (1a) is located inside the annular groove (1c). When the locking member (5) is unlocked, the rim (3a) of the wire storage bin (3) is embedded in the annular groove (1c), and a sealing is formed between the rim (3a) of the wire storage bin (3) and the bottom wall of the annular groove (1c).

5. A wire trimming machine according to claim 4, characterized in that, A sealing ring (7) is also connected to the rim (3a) of the wire storage bin (3), and the sealing ring (7) can form a sealing contact with the bottom wall of the annular groove (1c).

6. A thread trimming machine according to claim 1 or 2 or 3, characterized in that, The upper surface of the movable seat (2) has a downwardly recessed positioning groove (2a), the wire storage bin (3) is placed in the positioning groove (2a), and the bottom of the wire storage bin (3) is in clearance fit with the side wall of the positioning groove (2a).

7. A wire trimming machine according to claim 1, 2, or 3, characterized in that, The movable seat (2) is disc-shaped, and the locking member (5) is connected to the center of the movable seat (2). The first elastic member (4) is a spring and there are multiple springs. The multiple springs are evenly distributed on the outside of the locking member (5) along the circumference of the movable seat (2).

8. A wire trimming machine according to claim 7, characterized in that, A cylindrical guide seat (8) is fixedly connected to the bottom wall of the chassis (1). A guide rod (9) is vertically inserted into the guide seat (8). The first elastic element (4) is simultaneously sleeved on the guide seat (8) and the guide rod (9). The upper end of the guide rod (9) is fixedly connected to the movable seat (2). The lower end of the guide rod (9) extends out of the chassis (1) and can move up and down along the guide seat (8). The lower end of the guide rod (9) is also provided with an anti-detachment protrusion (10) for forming a limiting fit with the guide seat (8).

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