Improved vacuum heat sealing device

Abstract

The utility model relates to a tea packaging machine, and provides an improved vacuum heat-sealing device which comprises a vacuumizing mechanism, a heat-sealing mechanism, a shaping mechanism, a bag body clamping mechanism, a first driving mechanism, a second driving mechanism, a sealing driving mechanism, a push-out mechanism, a U-shaped connecting rod, an L-shaped support, a first connecting rod and a second connecting rod which are arranged on the tea packaging machine. The lower end of the first connecting rod is horizontally and movably arranged on a transverse rod of the L-shaped support in a sleeving mode, the upper end of the first connecting rod penetrates into the right vacuum chamber to be detachably connected with the right clamping plate, the lower end of the second connecting rod is arranged on the L-shaped support and located between the vertical rod and the first connecting rod, and the upper end of the second connecting rod penetrates into the left vacuum chamber to be detachably connected with the left clamping plate. And the output end of the second driving mechanism is connected with and drives the vertical rod of the L-shaped bracket to lift up and down so as to drive the right clamping plate on the first connecting rod and the left clamping plate on the second connecting rod to lift up and down. The vacuum heat-sealing device solves the problems that an existing vacuum heat-sealing device is complex in installation structure and inconvenient to maintain.

Description

Technical Field

[0001] The utility model relates to a tea packaging machine, in particular to an improved vacuum heat sealing device. Background Art

[0002] At present, the quality of bulk tea is greatly affected by external factors, so most tea will be stored after being packaged to ensure the quality of tea. At present, the packaging process generally uses automated sealing equipment to improve efficiency. Chinese patent document 201810128146.2 discloses a packaging mechanism for a tea packaging machine, including a fixed mold base, a movable mold base, an upper heat sealing mechanism, an upper shaping mechanism, a lower shaping mechanism and a push-out mechanism, wherein the upper heat sealing mechanism includes a fixed heating strip, an active clamping strip that can be relatively fitted with the fixed heating strip left and right, and an upper translation drive device that drives the active clamping strip. The heat sealing process is: the upper translation drive device drives the active clamping strip to translate and press the fixed heating strip, and the fixed heating strip hot melts the packaging material between the active clamping strip and the fixed heating strip, and then the active clamping strip is separated from the fixed heating strip, and the push-out mechanism pushes out the sealed tea package. However, the upper shaping mechanism and the upper translation drive device are all installed inside the fixed mold base and the movable mold base of the vacuum chamber, and the overall assembly is difficult and inefficient, the installation structure is complex, and the maintenance is inconvenient. Utility Model Content

[0003] Therefore, in view of the above problems, the utility model proposes an improved vacuum heat sealing device with simple structure, convenient assembly and maintenance, convenient use and good shaping effect.

[0004] In order to solve this technical problem, the utility model adopts the following scheme: an improved vacuum heat sealing device, comprising a vacuum pumping mechanism, a heat sealing mechanism, a shaping mechanism, a bag body clamping mechanism, a first driving mechanism, a second driving mechanism, a sealing driving mechanism, a pushing mechanism, a U-shaped connecting rod, an L-shaped bracket, a first connecting rod and a second connecting rod, the vacuum pumping mechanism comprising a left vacuum chamber, a right vacuum chamber and a vacuum pump for vacuuming the vacuum chamber formed by the left vacuum chamber and the right vacuum chamber, the heat sealing mechanism is arranged on the vacuum pumping mechanism, and the vacuum pumping mechanism comprises a vacuum pumping mechanism, a heat sealing mechanism, a bag body clamping mechanism, a first driving mechanism, a second driving mechanism, a sealing driving mechanism, a pushing mechanism, a U-shaped connecting rod, an L-shaped bracket, a first connecting rod and a second connecting rod. The top of the chamber is used to seal the packaging bag after vacuuming. The sealing drive mechanism is connected to and drives the left vacuum chamber and the right vacuum chamber to close the mold. The bag body clamping mechanism includes a left clamping plate and a right clamping plate. The shaping mechanism includes a fixed seat, a shaping groove that can move horizontally on the fixed seat, and a reset mechanism that drives the shaping groove to move and return. The sealing drive mechanism is arranged on the side of the right vacuum chamber away from the left vacuum chamber to drive the right vacuum chamber to move toward the left vacuum chamber for closing the mold. The pushing mechanism is arranged on one side between the left vacuum chamber and the right vacuum chamber to The tea packaging bag after vacuum heat-sealing and shaping on the shaping groove of the shaping mechanism is pushed out, the first driving mechanism and the second driving mechanism are arranged on the side of the left vacuum chamber away from the right vacuum chamber, the left clamping plate and the right clamping plate are symmetrically arranged in the left vacuum chamber and the right vacuum chamber respectively and can be moved up and down and are located below the heat sealing mechanism, the output of the first driving mechanism is connected to a vertical edge of the U-shaped connecting rod to drive the U-shaped connecting rod to move up and down, and the other vertical edge of the U-shaped connecting rod penetrates into the left vacuum chamber and is fixedly connected to the fixed seat of the shaping mechanism to drive the shaping mechanism to move up and down, the lower end of the first connecting rod can be horizontally movably sleeved on the transverse rod of the L-shaped bracket, the upper end of the first connecting rod penetrates into the right vacuum chamber and is detachably connected to the right clamping plate, the lower end of the second connecting rod is arranged on the L-shaped bracket and is located between the vertical rod and the first connecting rod, and the upper end of the second connecting rod penetrates into the left vacuum chamber and is detachably connected to the left clamping plate, the output end of the second driving mechanism is connected and drives the vertical rod of the L-shaped bracket to move up and down, thereby driving the right clamping plate on the first connecting rod and the left clamping plate on the second connecting rod to move up and down.

[0005] As a further improvement, the vertical rod of the L-shaped bracket is a rack, and the output end of the second driving mechanism is engaged with the rack on the vertical rod of the L-shaped bracket to drive the L-shaped bracket to move up and down in the left vacuum chamber.

[0006] As a further improvement, the vertical side of the U-shaped connecting rod located on the outer side of the left vacuum chamber is a second rack, and the output end of the first driving mechanism is engaged with the second rack of the U-shaped connecting rod to drive the U-shaped connecting rod to move up and down.

[0007] As a further improvement, the first driving mechanism and the second driving mechanism are both stepping motors or servo motors, and driving gears are provided on the output ends of the first driving mechanism and the second driving mechanism.

[0008] By adopting the above technical scheme, the beneficial effect of the utility model is as follows: by adopting the first driving mechanism to drive the shaping mechanism to move up and down in the vacuum chamber via the U-shaped connecting rod, and adopting the second driving mechanism to drive the vertical rod of the L-shaped bracket to move up and down, thereby driving the right clamping plate on the first connecting rod to move up and down and the left clamping plate on the second connecting rod to move up and down, so that the left clamping plate and the right clamping plate can cooperate to shape the upper part of the tea packaging bag, and can ensure that the shaping mechanism shapes the lower part of the tea packaging bag to achieve upper and lower shaping packaging, and the left clamping plate and the right clamping plate only need to move the first connecting rod and the second connecting rod. The two connecting rods are inserted into the right vacuum chamber and the left vacuum chamber and tightened, and then the L-shaped bracket and the second connecting rod are locked, and then the lower end of the first connecting rod is inserted into the horizontal rod of the L-shaped bracket, and then the output of the second drive mechanism is engaged with the vertical rod of the L-shaped bracket to quickly complete the assembly. The overall installation structure is effectively simplified, and the assembly and maintenance are convenient. The vacuuming and shaping effects are good, the space occupied is small, and the manufacturing cost is low. The first drive mechanism and the second drive mechanism only need to adopt the lowest cost stepper motor to achieve drive, which greatly reduces the cost and can be widely promoted and applied. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a partial three-dimensional structural schematic diagram of an embodiment of the utility model;

[0010] Figure 2 It is a partial three-dimensional structural schematic diagram of another angle of an embodiment of the utility model;

[0011] Figure 3 It is a partial top view structural schematic diagram of an embodiment of the utility model;

[0012] Figure 4 It is a partial structural schematic diagram of an embodiment of the utility model. DETAILED DESCRIPTION

[0013] The utility model is now further described in conjunction with the accompanying drawings and specific implementation methods, wherein the vacuuming mechanism, heat sealing mechanism, shaping mechanism, sealing drive mechanism, and ejection mechanism are all existing components, and the corresponding disclosure has been made in the patent previously applied for by our company: CN202122799236.4, a new type of vacuum heat sealing shaping device. Therefore, only the new design part of this application is described in detail below.

[0014] refer to Figure 1-Figure 4The preferred improved vacuum heat sealing device of the utility model comprises a vacuum pumping mechanism, a heat sealing mechanism 2, a shaping mechanism 3, a first driving mechanism 4, a second driving mechanism 5, a sealing driving mechanism 6, a pushing mechanism 7, a U-shaped connecting rod 8, an L-shaped bracket 9, a first connecting rod 10 and a second connecting rod 11 arranged on a frame of a tea packaging machine. The vacuum pumping mechanism comprises a left vacuum chamber 101, a right vacuum chamber 102 and a vacuum pump for vacuuming the vacuum chamber formed by the left vacuum chamber 101 and the right vacuum chamber 102. The heat sealing mechanism 2 is arranged at the top of the vacuum chamber for sealing the packaging bag after vacuuming. The sealing driving mechanism 6 is connected to and drives the left vacuum chamber 101 The bag body clamping mechanism includes a left clamping plate 13 and a right clamping plate 14. The shaping mechanism 3 includes a fixed seat, a shaping groove that can move horizontally on the fixed seat, and a reset mechanism that drives the shaping groove to translate and return. The sealing drive mechanism 6 is arranged on the side of the right vacuum chamber 102 away from the left vacuum chamber 101 to drive the right vacuum chamber 102 to move toward the left vacuum chamber 101 for mould closing. The pushing mechanism 7 is arranged on one side between the left vacuum chamber 101 and the right vacuum chamber 102 to push out the tea packaging bag that has been vacuumed and heat-sealed on the shaping groove of the shaping mechanism 3. The first driving mechanism 4 and the second driving mechanism 5 are both stepping motors. The first driving mechanism 4 is a stepping motor. The mechanism 4 and the second driving mechanism 5 are arranged on the side of the left vacuum chamber 101 away from the right vacuum chamber 102. The left clamping plate 13 and the right clamping plate 14 are symmetrically arranged in the left vacuum chamber 101 and the right vacuum chamber 102 and are respectively movable up and down and are located below the heat sealing mechanism 2. The vertical side of the U-shaped connecting rod 8 located on the outside of the left vacuum chamber 101 is the second rack. The output end of the first driving mechanism 4 is meshed with the second rack of the U-shaped connecting rod 8 through the driving gear to drive the U-shaped connecting rod 8 to move up and down, and the other vertical side of the U-shaped connecting rod 8 penetrates into the left vacuum chamber 101 and is fixedly connected to the fixed seat of the shaping mechanism 3 to drive the shaping mechanism 3 to move up and down. The lower end of the first connecting rod 10 It can be horizontally movably sleeved on the transverse rod of the L-shaped bracket 9, the upper end of the first connecting rod 10 penetrates into the right vacuum chamber 102 and is detachably connected to the right clamping plate 14, the lower end of the second connecting rod 11 is arranged on the L-shaped bracket 9 between the vertical rod and the first connecting rod 10, and the upper end of the second connecting rod 11 penetrates into the left vacuum chamber 101 and is detachably connected to the left clamping plate 13, the vertical rod of the L-shaped bracket 9 is a rack, and the output end of the second driving mechanism 5 is engaged with the rack on the vertical rod of the L-shaped bracket 9 through the driving gear to drive the vertical rod of the L-shaped bracket 9 to move up and down, and then drive the right clamping plate 14 on the first connecting rod 10 and the left clamping plate 13 on the second connecting rod 11 to move up and down.

[0015] The sealing drive mechanism 6 includes a driving motor 61, a driving gear 62, a mold clamping frame 63, and a moving seat 64. The left vacuum chamber 101 is fixed to the left part of the mold clamping frame 63, and the right vacuum chamber 102 is horizontally movably arranged on the mold clamping frame 63. The moving seat 64 is fixed to the side of the right vacuum chamber 102 away from the left vacuum chamber 101. The driving motor 61 is arranged on the mold clamping frame 63 and drives the driving gear 62 to rotate. An eccentric shaft 621 is arranged on the upper surface of the driving gear 62. The side of the moving seat 64 away from the connection with the right vacuum chamber 102 is hinged to the free end of the eccentric shaft 621 on the driving gear 62. The forward and reverse rotation of the driving motor 61 drives the driving gear 62 forward and reverse, and then drives the eccentric shaft 621 forward and reverse to realize the horizontal movement of the moving seat 64 so that the right vacuum chamber 102 is molded or molded toward the left vacuum chamber 101.

[0016] The sealing drive mechanism in the utility model can also adopt other structures to drive the right vacuum chamber to close the mold with the left vacuum chamber. The first drive mechanism and the second drive mechanism can also be other power mechanisms such as servo motors.

[0017] Although the present invention has been specifically demonstrated and described in conjunction with the preferred embodiments, those skilled in the art should understand that various changes may be made to the present invention in form and detail without departing from the spirit and scope of the present invention as defined in the appended claims, all of which are within the scope of protection of the present invention.

Claims

1. An improved vacuum heat sealing device, comprising a vacuum pumping mechanism, a heat sealing mechanism, a shaping mechanism, a bag body clamping mechanism, a first driving mechanism, a second driving mechanism, a sealing driving mechanism, a pushing mechanism, a U-shaped connecting rod, an L-shaped bracket, a first connecting rod and a second connecting rod, the vacuum pumping mechanism comprising a left vacuum chamber, a right vacuum chamber and a vacuum pump for vacuuming a vacuum chamber formed by the left vacuum chamber and the right vacuum chamber, the heat sealing mechanism being arranged at the top of the vacuum chamber for sealing the packaging bag after vacuuming, the sealing mechanism The driving mechanism connects and drives the left vacuum chamber and the right vacuum chamber to close the mold. The bag body clamping mechanism includes a left clamping plate and a right clamping plate. The shaping mechanism includes a fixed seat, a shaping groove that can move horizontally on the fixed seat, and a reset mechanism that drives the shaping groove to translate and return. The sealing driving mechanism is arranged on the side of the right vacuum chamber away from the left vacuum chamber to drive the right vacuum chamber to move toward the left vacuum chamber for closing the mold. The pushing mechanism is arranged on one side between the left vacuum chamber and the right vacuum chamber to push out the tea packaging bag that has been vacuumed, heat-sealed and shaped on the shaping groove of the shaping mechanism. It is characterized in that: The first driving mechanism and the second driving mechanism are arranged on a side of the left vacuum chamber away from the right vacuum chamber, and the left clamping plate and the right clamping plate are symmetrically arranged in the left vacuum chamber and the right vacuum chamber respectively and can be moved up and down and are located below the heat sealing mechanism, the output of the first driving mechanism is connected to a vertical edge of the U-shaped connecting rod to drive the U-shaped connecting rod to move up and down, and the other vertical edge of the U-shaped connecting rod penetrates into the left vacuum chamber and is fixedly connected to the fixed seat of the shaping mechanism to drive the shaping mechanism to move up and down, the lower end of the first connecting rod can be horizontally movably sleeved on the transverse rod of the L-shaped bracket, the upper end of the first connecting rod penetrates into the right vacuum chamber and is detachably connected to the right clamping plate, the lower end of the second connecting rod is arranged on the L-shaped bracket and is located between the vertical rod and the first connecting rod, and the upper end of the second connecting rod penetrates into the left vacuum chamber and is detachably connected to the left clamping plate, the output end of the second driving mechanism is connected and drives the vertical rod of the L-shaped bracket to move up and down, thereby driving the right clamping plate on the first connecting rod and the left clamping plate on the second connecting rod to move up and down.

2. The improved vacuum heat sealing device according to claim 1, characterized in that: The vertical rod of the L-shaped bracket is a rack, and the output end of the second driving mechanism is meshed with the rack on the vertical rod of the L-shaped bracket to drive the L-shaped bracket to move up and down in the left vacuum chamber.

3. The improved vacuum heat sealing device according to claim 1, characterized in that: The vertical side of the U-shaped connecting rod located outside the left vacuum chamber is a second rack, and the output end of the first driving mechanism is meshed with the second rack of the U-shaped connecting rod to drive the U-shaped connecting rod to move up and down.

4. The improved vacuum heat sealing device according to claim 3, characterized in that: The first driving mechanism and the second driving mechanism are both stepping motors or servo motors, and driving gears are arranged on the output ends of the first driving mechanism and the second driving mechanism.

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