Vacuum sealing machine with improved automatic cover locking mechanism

Abstract

The utility model discloses a vacuum sealing machine with an improved automatic cover locking mechanism, which is characterized in that two sides of a covering matching surface of an upper cover are respectively provided with a buckling foot, and an arc-shaped buckling groove is formed in the side surface of each buckling foot; an automatic cover locking mechanism is arranged in the main body, the automatic cover locking mechanism comprises a cover locking driving motor, a transmission shaft and a lock disc, the transmission shaft is rotationally installed in the main body, and the cover locking driving motor is fixedly installed in the main body and electrically connected to the control device; two ends of the transmission shaft respectively extend to two sides of the main body and are in transmission connection with the cover locking driving motor; the lock discs are assembled at the two ends of the transmission shaft respectively, a lock catch part is arranged on the edge of each lock disc, the rotating track of each lock catch part is matched with the extending track of the corresponding catching groove, and each lock catch part is clamped in the corresponding catching groove in a rotating mode so that the upper cover can be automatically locked. Compared with the prior art, the automatic cover locking mechanism has the advantages of being stable and reliable in operation and low in manufacturing cost.

Description

TECHNICAL FIELD

[0001] The utility model relates to vacuum sealing machine technical field especially is related to a vacuum sealing machine of improved automatic lock cover mechanism. BACKGROUND

[0002] The main body and the upper cover need to be locked by the locking mechanism during the work of the household vacuum sealing machine, and in the prior art, the locking mechanism in the vacuum sealing machine has a manual locking mechanism and an automatic locking mechanism, such as the Chinese utility model patent with the application number "CN201920567384.3" and the patent name "vacuum sealing and packaging machine with automatic lock cover and open cover", which provides an automatic lock cover and open cover mechanism of the vacuum sealing machine, the automatic lock cover and open cover mechanism includes a nut assembly and a tensioning assembly, which are oppositely arranged in the upper cover and the base body and are screwed in transmission when the upper cover is closed on the base body, the nut assembly includes a lock cover nut, and the tensioning assembly includes a lock cover butt joint rod, at least the upper part of the lock cover butt joint rod is provided with an external thread for screwing the lock cover nut, the upper part of the lock cover butt joint rod is inserted into the corresponding lock cover nut when the upper cover is pressed on the base body, and the lock cover nut is screwed on the rod body of the lock cover butt joint rod when the lock cover butt joint rod and the lock cover nut rotate relatively, the control unit is electrically connected with the vacuumizing device and the automatic lock cover driving mechanism, the automatic lock cover driving mechanism is transmissionally connected with the lock cover butt joint rod or the lock cover nut, and is used for realizing the relative rotation of the lock cover butt joint rod and the lock cover nut.

[0003] This automatic lock cover and open cover mechanism composed of the butt joint rod and the lock cover nut has the following disadvantages: 1. After multiple uses, the threads between the lock cover nut and the butt joint rod are prone to wear due to mechanical wear, which may cause the threads to be stuck; 2. The lock cover nut is fixed on the closing surface of the upper cover and rotates with the upper cover, and when the upper cover is closed, the inner thread hole of the lock cover nut and the butt joint rod are in a non-coaxial state, which may deviate during the screwing process, resulting in loose connection or damage to the threads; 3. The lock cover and open cover time is long, which reduces the working efficiency of the whole machine. UTILITY MODEL CONTENTS

[0004] In view of the deficiencies in the prior art, the utility model aims to provide a vacuum sealing machine with an improved automatic lock cover mechanism, which realizes quick automatic lock cover and open cover between the upper cover and the main body, improves the action speed of the automatic lock cover and open cover of the upper cover, improves the working efficiency of the whole machine, has a reliable structure, stable operation, and improves the service life of the whole machine.

[0005] In order to achieve the above object, the utility model adopts the technical scheme: an improved vacuum sealing machine of automatic lid locking mechanism, control device, main body and upper cover are included, the upper cover is hinged to the main body, both sides of the closing surface of the upper cover are equipped with a buckling foot, the side of the buckling foot is formed with an arc-shaped buckling groove, the inside of the main body is equipped with an automatic lid locking mechanism, the automatic lid locking mechanism includes a lid locking drive motor, a transmission shaft and a lock disc, the transmission shaft is rotatably installed in the inside of the main body, the lid locking drive motor is fixedly installed in the inside of the main body and is electrically connected to the control device, both ends of the transmission shaft extend to both sides of the main body and are drivingly connected to the lid locking drive motor, the lock disc is assembled at both ends of the transmission shaft, the edge of the lock disc is equipped with a lock buckle part, the rotation track of the lock buckle part matches the extension track of the buckling groove, the vacuum sealing machine has a lid locking state and a lid opening state, when the vacuum sealing machine is in the lid locking state, the upper cover is turned over and closed on the main body, the buckling feet on both sides are moved to the position close to the main body, and the buckling grooves thereof respectively coincide with the movement tracks of the corresponding lock buckle parts, the lock buckle parts are rotatably clamped in the buckling grooves to realize automatic locking of the upper cover, when the vacuum sealing machine is in the lid locking state, the lock buckle parts are rotatably separated from the buckling grooves to realize automatic unlocking of the upper cover.

[0006] In further technical solutions, the output shaft of the lid locking drive motor is assembled with a driving gear; a driven gear is sleeved at the middle position of the transmission shaft, the driven gear is engaged with the driving gear, and the diameter of the driven gear is smaller than that of the driving gear.

[0007] In further technical solutions, the inside of the main body is provided with at least two bearing seats, the bearing seats are respectively located at both ends of the transmission shaft, and the transmission shaft is rotatably installed in the bearing seats.

[0008] In further technical solutions, the lock buckle part is formed on the edge of the lock disc, the projection shape of the lock buckle part is arc-shaped along the axis direction of the lock disc, and the lock buckle part matches the buckling groove.

[0009] In further technical solutions, the side of any lock disc is fixed with a micro switch, the micro switch is electrically connected to the control device, and the micro switch has a spring piece; the side of the lock disc away from the lock buckle part is formed with a recessed part, both sides of the recessed part are respectively formed with a stroke triggering part, the end of the spring piece of the micro switch is movably arranged in the recessed part and is triggered and pressed on both sides of the stroke triggering part.

[0010] In further technical solutions, the extension arc of the recessed part is 150-180 degrees.

[0011] In further technical solutions, the side of the lock disc away from the lock buckle part is formed with a lid opening abutting part, the lid opening abutting part is located on the same side surface of the lock buckle part, the radius of the movement track of the lid opening abutting part is smaller than that of the movement track of the lock buckle part, the movement track of the lid opening abutting part passes through the corresponding buckling foot and is slidably abutted on the bottom surface of the buckling foot.

[0012] In a further technical solution, the lock disc has an automatic locking cover state and an automatic opening cover state, when the lock disc is in the automatic locking cover state, the lock catch part is clamped in the corresponding catch groove along the forward rotation direction, the stroke trigger part on the first side triggers the spring leaf of the micro switch, the micro switch sends an electric signal to the control device, the control device controls the lock cover driving motor to stop forward rotation, so as to realize the locking state between the lock disc and the catch foot; when the lock disc is in the automatic opening cover state, the lock catch part is rotated away from the corresponding catch groove along the reverse rotation direction, the cover abutting part slides against the bottom surface of the catch foot and keeps abutting against the bottom surface of the catch foot, the stroke trigger part on the second side triggers the spring leaf of the micro switch, the micro switch sends an electric signal to the control device, the control device controls the lock cover driving motor to stop reverse rotation, so as to realize the opening cover state between the lock disc and the catch foot.

[0013] In a further technical solution, the side part of the cover abutting part is formed with a semicircular abutting head, and the abutting head is in sliding abutting cooperation with the bottom surface of the catch foot.

[0014] In a further technical solution, the lock cover driving motor comprises a servo motor or a stepping motor.

[0015] Compared with the prior art, the vacuum sealing machine with the improved automatic lock cover mechanism has the following advantages: the transmission shaft drives the lock discs on both sides, the automatic locking of the upper cover is realized through the buckling cooperation between the lock catch part on the lock disc and the catch groove of the catch foot, the structure is simple, the operation is stable, the lock cover action is fast, the working speed of the whole machine is improved; through the reverse rotation of the lock disc, the lock catch part can smoothly separate from the catch groove of the catch foot, the upper cover is unlocked, the cover abutting part moving with the reverse rotation of the lock disc abuts against the catch foot, the automatic opening cover is realized, manual opening cover is avoided, the change caused by the adsorption effect of the negative pressure on the upper cover is avoided, the use experience of the whole machine is further improved; the stroke trigger parts on both sides of the recess part formed in the lock disc trigger the micro switch respectively, so as to realize the control of the rotation stroke of the lock disc, realize the automatic start-stop control of the automatic lock cover and the automatic opening cover, the design is ingenious, the preparation cost is low, the operation is stable and reliable, and the operation stability of the whole machine is further improved. BRIEF DESCRIPTION OF DRAWINGS

[0016] The utility model is further explained below in combination with the drawings and examples.

[0017] Figure 1 is the structure schematic view of the utility model.

[0018] Figure 2 is the structure schematic view of the automatic lock cover mechanism in the utility model.

[0019] Figure 3It is the automatic lock cover mechanism's local structure schematic view in the utility model.

[0020] Figure 4 It is the structure schematic view when the utility model is in the lock cover state.

[0021] Figure 5 It is the structure schematic view when the utility model is in the open cover state. Specific implementation

[0022] The following is only the preferred embodiment of the utility model, and does not limit the protection scope of the utility model.

[0023] In order to improve the automatic lock cover mechanism's deficiency of the vacuum sealing machine in prior art, the inventor proposes an improved automatic lock cover mechanism, which can reduce the preparation cost of the automatic lock cover mechanism and improve the operation stability of the automatic lock cover mechanism.

[0024] As Figures 1 to 5 The utility model discloses an improved automatic lock cover mechanism's vacuum sealing machine, including control device, main body 1 and upper cover 2, upper cover 2 is hingedly connected in main body 1, and it is characterized in that: the both sides of the cover cooperation surface of upper cover 2 are equipped with a buckling foot 3, and the side of buckling foot 3 is formed with the arc-shaped buckling groove 30;The inside of main body 1 is equipped with automatic lock cover mechanism, and the automatic lock cover mechanism includes lock cover drive motor 81, transmission shaft 84 and lock disc 9, transmission shaft 84 is rotatably installed in the inside of main body 1, lock cover drive motor 81 is fixedly installed in the inside of main body 1 and is electrically connected to control device;The both ends of transmission shaft 84 extend to the both sides of main body 1 respectively and are drivingly connected to lock cover drive motor 81;Lock disc 9 is respectively assembled at the both ends of transmission shaft 84, and the edge of lock disc 9 is equipped with a lock catch 91, and the rotation track of lock catch 91 matches the extension track of buckling groove 30, the vacuum sealing machine has the lock cover state and the open cover state, when the vacuum sealing machine is in the lock cover state, upper cover 2 is turned over and covers in main body 1, and the buckling foot 3 of both sides is moved to the position close to main body 1 with turning over, and the buckling groove 30 thereof is coincided with the movement track of corresponding lock catch 91 respectively, and lock catch 91 is rotatably clamped in buckling groove 30 to realize the automatic locking of upper cover 2;When the vacuum sealing machine is in the lock cover state, lock catch 91 is rotatably separated from buckling groove 30 to realize the automatic unlocking of upper cover 2.

[0025] Through the rotation movement cooperation of lock disc 9 and lock catch 91, the buckling cooperation and separation cooperation between the buckling groove 30 of corresponding buckling foot 3 are realized to realize the automatic locking and automatic unlocking of upper cover 2.

[0026] Through the transmission shaft 84 driving the lock disc 9 of both sides, the automatic locking of upper cover is realized through the buckling cooperation between the lock catch 91 on lock disc 9 and the buckling groove 30 of buckling foot 3, and the structure is simple, the operation is stable, the lock cover action is fast, and the machine working speed is improved.

[0027] Specifically, a socket 10 is formed on both sides of the cover fitting surface of the main body 1 in the embodiment, and the socket 10 matches the buckle foot 3 to ensure that the buckle foot 3 does not deviate left and right during the cover closing process, thereby avoiding the situation that the lock buckle 91 fails to buckle with the buckle groove 30 of the buckle foot 3.

[0028] Specifically, the output shaft of the lock cover driving motor 81 is equipped with a driving gear 82, and a transmission shaft 84 is equipped with a driven gear 83 at the middle position, the driven gear 83 engages with the driving gear 82, and the diameter of the driven gear 83 is smaller than that of the driving gear 82.

[0029] Specifically, the inside of the main body 1 is provided with at least two bearing seats 85, which are respectively located at both ends of the transmission shaft 84, and the transmission shaft 84 is rotatably installed in the bearing seat 85.

[0030] Specifically, the lock buckle 91 is formed on the edge of the lock disc 9, and the projection shape of the lock buckle 91 along the axis direction of the lock disc 9 is a circular arc shape, and the lock buckle 91 matches the buckle groove 30.

[0031] Specifically, the side of any one of the lock disc 9 is fixed with a micro switch 86, and the micro switch 86 is electrically connected to the control device, and the micro switch 86 has a spring leaf; the side of the lock disc 9 away from the lock buckle 91 is formed with a recessed part 93, and the both sides of the recessed part 93 are respectively formed with a travel trigger part 931, and the end of the spring leaf of the micro switch 86 is movably arranged in the recessed part 93 and respectively triggers and presses the travel trigger part 931 on both sides. The extension arc of the recessed part 93 is 160 degrees.

[0032] The travel trigger parts 931 on both sides of the recessed part 93 of the lock disc 9 respectively trigger the micro switch 86 to realize the control of the rotation travel of the lock disc 9, realize the automatic start-stop control of the automatic lock cover and the automatic open cover, the design is ingenious, the preparation cost is low, and the operation is stable and reliable, and the operation stability of the whole machine is further improved.

[0033] Specifically, the side of the lock disc 9 away from the lock buckle 91 is formed with an open cover abutting part 92, the open cover abutting part 92 is located on the same side of the lock buckle 91, the radius of the movement track of the open cover abutting part 92 is smaller than the radius of the movement track of the lock buckle 91, the movement track of the open cover abutting part 92 passes through the corresponding buckle foot 3, and slides and abuts on the bottom surface of the buckle foot 3.

[0034] Specifically, the lock disc 9 has an automatic locking cover state and an automatic opening cover state, when the lock disc 9 is in the automatic locking cover state, the lock catch part 91 is clamped in the corresponding catch groove 30 along the forward rotation direction, the first side stroke trigger part 931 triggers the spring leaf of the micro switch 86, the micro switch 86 sends an electrical signal to the control device, and the control device controls the lock cover driving motor 81 to stop forward rotation, so that the lock disc 9 and the catch foot 3 keep the locking state; when the lock disc 9 is in the automatic opening cover state, the lock catch part 91 is rotated away from the corresponding catch groove 30 along the reverse rotation direction, the cover opening abutting part 92 is abutted and kept abutted on the bottom surface of the catch foot 3, and the second side stroke trigger part 931 triggers the spring leaf of the micro switch 86, the micro switch 86 sends an electrical signal to the control device, and the control device controls the lock cover driving motor 81 to stop reverse rotation, so that the lock disc 9 and the catch foot 3 keep the opening cover state. The side of the cover opening abutting part 92 is formed with a semicircular abutting head, and the abutting head is in sliding abutment with the bottom surface of the catch foot 3. The lock cover driving motor 81 comprises a servo motor.

[0035] Through the reverse rotation of the lock disc 9, the lock catch part 91 can smoothly separate from the catch groove 30 of the catch foot 3, the upper cover 2 is unlocked, and the cover opening abutting part 92 moves with the lock disc 9, and the cover opening abutting part 92 abuts against the catch foot 3, so that the automatic opening cover is realized, manual opening cover is avoided, the suction effect of negative pressure on the upper cover is avoided, and the use experience of the whole machine is further improved.

[0036] The main body 1 of the vacuum sealing machine in the embodiment further comprises a vacuum cavity 4 and a telescopic air nozzle 5, and through the control of the telescopic stroke of the air nozzle 5, the smooth bag mode and the rough bag mode of the whole machine are switched.

[0037] The above is only a preferred embodiment of the present application, and for those skilled in the art, according to the idea of the present application, the specific embodiment and application range can be changed, and the content of the specification should not be understood as a limitation of the present application.

Claims

1. A vacuum sealing machine with an improved automatic locking mechanism, comprising a control device, a main body (1), and an upper cover (2), wherein the upper cover (2) is hinged to the main body (1), characterized in that: The upper cover (2) has a buckle (3) on each side of the mating surface, and the buckle (3) has an arc-shaped buckle groove (30) formed on the side. The main body (1) is equipped with an automatic cover locking mechanism, which includes a cover locking drive motor (81), a drive shaft (84), and a lock disc (9). The drive shaft (84) is rotatably mounted inside the main body (1), and the cover locking drive motor (81) is fixedly mounted inside the main body (1) and electrically connected to the control device. The two ends of the drive shaft (84) extend to both sides of the main body (1) and are connected to the cover locking drive motor (81). The lock disc (9) is respectively assembled at both ends of the drive shaft (84). The edge of the lock disc (9) is provided with a latch (91), and the rotation trajectory of the latch (91) matches the extension trajectory of the latch groove (30). The vacuum sealing machine has a locked lid state and an open lid state. When the vacuum sealing machine is in the locked state, the upper cover (2) flips over and closes to the main body (1). The buckle feet (3) on both sides move to a position close to the main body (1) as they flip over, and their buckle grooves (30) coincide with the movement trajectory of the corresponding locking parts (91). The locking parts (91) rotate and are embedded in the buckle grooves (30) to achieve automatic locking of the upper cover (2). When the vacuum sealing machine is in the locked state, the locking part (91) rotates and disengages from the locking groove (30) to achieve automatic unlocking of the top cover (2).

2. The vacuum sealing machine with an improved automatic cap locking mechanism according to claim 1, characterized in that: The output shaft of the cover drive motor (81) is equipped with a drive gear (82); a driven gear (83) is sleeved in the middle position of the transmission shaft (84), the driven gear (83) meshes with the drive gear (82), and the diameter of the driven gear (83) is smaller than that of the drive gear (82).

3. A vacuum sealing machine with an improved automatic cap locking mechanism according to claim 2, characterized in that: The main body (1) has at least two bearing seats (85) inside, which are located at the two ends of the drive shaft (84) respectively, and the drive shaft (84) is rotatably mounted on the bearing seats (85).

4. A vacuum sealing machine with an improved automatic cap locking mechanism according to claim 1, characterized in that: The latch (91) is formed on the edge of the lock disc (9). Along the axial direction of the lock disc (9), the projected shape of the latch (91) is arc-shaped, and the latch (91) matches the latch groove (30).

5. A vacuum sealing machine with an improved automatic cap locking mechanism according to claim 4, characterized in that: A micro switch (86) is fixed to the side of the locking disc (9) on one side. The micro switch (86) is electrically connected to the control device. The micro switch (86) has a spring. A recessed portion (93) is formed on the side of the locking disc (9) away from the latch (91). A travel trigger portion (931) is formed on both sides of the recessed portion (93). The end of the spring of the micro switch (86) is movably disposed in the recessed portion (93) and is triggered and pressed against the travel trigger portions (931) on both sides respectively.

6. A vacuum sealing machine with an improved automatic cap locking mechanism according to claim 5, characterized in that: The extension arc of the recessed portion (93) is 150 degrees to 180 degrees.

7. A vacuum sealing machine with an improved automatic cap locking mechanism according to claim 6, characterized in that: The lock disc (9) has an opening cover abutting top (92) formed on the side away from the latch (91). The opening cover abutting top (92) is located on the same side of the latch (91). The radius of the movement trajectory of the opening cover abutting top (92) is smaller than the radius of the movement trajectory of the latch (91). The movement trajectory of the opening cover abutting top (92) passes through the corresponding latch foot (3) and slides against the bottom surface of the latch foot (3).

8. A vacuum sealing machine with an improved automatic cap locking mechanism according to claim 7, characterized in that: The locking disc (9) has an automatic locking state and an automatic opening state. When the locking disc (9) is in the automatic locking state, the locking part (91) rotates in the forward direction and is engaged in the corresponding locking groove (30). The stroke trigger part (931) on the first side triggers the spring that presses against the micro switch (86). The micro switch (86) sends an electrical signal to the control device. The control device controls the locking cover drive motor (81) to stop rotating in the forward direction, so as to keep the locking disc (9) and the locking foot (3) locked. When the lock disc (9) is in the automatic opening state, the latch (91) rotates in the reverse direction and disengages from the corresponding latch groove (30). The top of the opening cover (92) slides against the bottom surface of the latch foot (3) and maintains the abutment against the bottom surface of the latch foot (3). The travel trigger part (931) on the second side triggers the spring that presses against the micro switch (86). The micro switch (86) sends an electrical signal to the control device. The control device controls the lock cover drive motor (81) to stop reversing, so as to maintain the open state between the lock disc (9) and the latch foot (3).

9. A vacuum sealing machine with an improved automatic cap locking mechanism according to claim 7, characterized in that: The side of the top of the cover (92) is formed with a semi-circular abutment head, which slides and abuts against the bottom surface of the buckle (3).

10. A vacuum sealing machine with an improved automatic cap locking mechanism according to claim 1, characterized in that: The cover drive motor (81) includes a servo motor or a stepper motor.

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