Heating furnace tilting mechanism of double-station plastic vacuum forming machine

Abstract

The utility model relates to a double-station heating furnace tilting mechanism of a plastic vacuum forming machine, which relates to the technical field of heating structures of plastic vacuum forming machines and comprises a plastic vacuum forming machine frame, workbenches mounted on two sides of the plastic vacuum forming machine frame and a heating furnace arranged in the middle of the plastic vacuum forming machine frame. Upper connecting rods are fixedly arranged on the four sides of the top of the heating furnace, change gear guide rails are transversely installed in the middles of the front side and the rear side of the plastic uptake machine frame, a hanging frame is slidably arranged in the middle of the plastic uptake machine frame, movable change gears are installed on the four sides of the top of the hanging frame, and the hanging frame is slidably connected with the two change gear guide rails through the movable change gears. The heating furnace is movably hung on the lower side of the hanging frame through an upper connecting rod, the heating furnace is lifted and placed through a lifting air cylinder and a lifting hook, the height of one end of the heating furnace is obliquely increased, one side of the heating furnace is far away from a thermoplastic sheet placed on the workbench, and the influence of heat emitted by the side face of the heating furnace on the thermoplastic sheet can be greatly reduced; and the efficiency and the effect of subsequent plastic uptake forming can be improved.

Description

Technical Field

[0001] The utility model discloses a heating furnace tilting mechanism for a double-station blister machine, and relates to the technical field of heating structures for blister machines. Background Art

[0002] Luggage and bag blister forming is a plastic processing technology, mainly used to manufacture the outer shell of luggage, such as trolley cases, travel cases, etc. This process usually involves adsorbing thermoplastic sheets (such as polyvinyl chloride PVC, polycarbonate PC, etc.) to the metal or plastic mold of the luggage through a vacuum blister forming machine to form the outer shell of the luggage. More specifically, when using the existing conventional blister forming machine, it is generally necessary to manually push the heating furnace to the workbench, preheat the mold on the workbench and then return it to its position to ensure that its surface temperature is uniform, avoid uneven distribution of plastic on the mold due to temperature differences, and affect the quality of the finished product, and then place the thermoplastic sheet on the movable placement frame of the workbench. This movable placement frame can drive the thermoplastic sheet to move to the bottom of the heating furnace for preliminary softening and then return to its position, and press the softened plastic on the movable placement frame by lifting and pressing the frame structure, and then the bottom mold pushes the softened thermoplastic sheet upwards and vacuum adsorbs it to form the outer shell of the luggage;

[0003] However, during the above-mentioned use, since the heat of the heating furnace can be dissipated to both sides, when the thermoplastic sheet is placed on the workbench, the side close to the heating furnace is softened in advance by the heat, resulting in uneven heating temperature and softening degree of the thermoplastic sheet when it is sent to the bottom of the heating furnace for heating, which will also affect the effect and efficiency of subsequent blister forming. For this reason, it is necessary for our company to propose a tilting mechanism for the heating furnace of a double-station blister machine to improve the existing technology. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model aims to provide a double-station heating furnace tilting mechanism for a vacuum forming machine to solve the problems mentioned in the above background technology.

[0005] In order to achieve the above-mentioned purpose, the utility model is realized by the following technical scheme: a double-station blister machine heating furnace tilting mechanism, comprising a blister frame, workbenches installed on both sides of the blister frame, and a heating furnace arranged in the middle of the blister frame;

[0006] The four sides of the top of the heating furnace are fixed with upper connecting rods, the middle of the front and rear sides of the blister frame are transversely installed with hanging wheel guide rails, the middle of the blister frame is slidably provided with a hanging rack, the four sides of the top of the hanging rack are equipped with movable hanging wheels, and the hanging wheels are slidably connected with the two hanging wheel guide rails through the movable hanging wheels, and the heating furnace is movably hung on the lower side of the hanging rack through the upper connecting rod;

[0007] Four lifting cylinders are vertically installed downward in the middle of the blister frame, and lifting hooks are installed at the telescopic ends of the lifting cylinders, and the lifting hooks are respectively hooked on one side of the upper connecting rod for lifting and placing.

[0008] On the basis of the above technical solution, a transverse hook rod is fixedly provided on the inner side of the upper connecting rod, and each of the transverse hook rods is respectively and correspondingly clamped in the middle of each lifting hook.

[0009] On the basis of the above technical solution, a hanging pin is longitudinally fixed on one side of the transverse hook rod, an avoidance groove is opened in the middle part of the lifting hook facing the transverse hook rod, and the transverse hook rod is arranged in the middle part of the avoidance groove, and a snap-in slot capable of locking the hanging pin is opened on the lower side of the avoidance groove.

[0010] Based on the above technical solution, the hanging bracket includes four hanging rods extending vertically downward, and four movable hanging wheels are respectively installed on the top of the four hanging rods. The lower sides of the four hanging rods are respectively provided with arc-shaped sliding grooves, and each arc-shaped sliding groove is movably penetrated by a tilting pin, and the ends of the four tilting pins are respectively rotatably connected to the four upper connecting rods.

[0011] On the basis of the above technical solution, the two hanging rods on the front side and the two hanging rods on the rear side of the hanging rack are locked and connected to each other through fixing rods.

[0012] On the basis of the above technical solution, the arc-shaped sliding groove on the left side takes the right-side tilting latch as the center, and the arc-shaped sliding groove on the right side takes the left-side tilting latch as the center.

[0013] Compared with the prior art, the utility model has the following advantages:

[0014] The utility model can lift the heating furnace according to the use requirements through the provided lifting cylinder and lifting hook, and tilt the height of one end of the heating furnace to make one side of the heating furnace away from the thermoplastic sheet placed on the workbench, which can greatly reduce the influence of the heat emitted from the side of the heating furnace on the thermoplastic sheet, and is conducive to improving and improving the efficiency and effect of subsequent vacuum forming;

[0015] And when the heating furnace is in a flat state, the lifting hook can avoid the heating furnace and the hanging frame when they slide left and right on the hanging wheel guide rail, so as to avoid affecting the sliding use of the heating furnace. Compared with the existing technology, it has a more positive and beneficial use effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Other features, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings:

[0017] Figure 1 This is a front view structural schematic diagram of the utility model;

[0018] Figure 2 It is a side view structural schematic diagram of the utility model;

[0019] Figure 3 It is a partial enlarged side view structural schematic diagram of the utility model;

[0020] Figure 4 This is a schematic diagram of the connection structure of the upper connecting rod, the transverse hook rod and the hanging rod of the utility model;

[0021] Figure 5 This is a schematic diagram of the structure of the heating furnace of the utility model in use state;

[0022] In the figure: blister frame 1, workbench 2, heating furnace 3, upper connecting rod 31, transverse hook rod 32, hanging pin 33, hanging wheel guide rail 4, hanging rack 5, hanging rod 51, arc-shaped sliding groove 52, tilting pin 53, movable hanging wheel 6, lifting cylinder 7, lifting hook 71, avoidance groove 72, bayonet 73. DETAILED DESCRIPTION

[0023] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0024] See also Figure 1-Figure 5 The utility model provides a technical solution of a double-station blister machine heating furnace tilting mechanism: it includes a blister frame 1, a workbench 2 installed on both sides of the blister frame 1, and a heating furnace 3 arranged in the middle of the blister frame 1, the four sides of the top of the heating furnace 3 are fixed with upper connecting rods 31, the middle of the front and rear sides of the blister frame 1 are horizontally installed with hanging wheel guide rails 4, the middle of the blister frame 1 is slidably provided with a hanging rack 5, the four sides of the top of the hanging rack 5 are installed with movable hanging wheels 6, and are slidably connected with the two hanging wheel guide rails 4 through the movable hanging wheels 6, the heating furnace 3 is movably hung on the lower side of the hanging rack 5 through the upper connecting rod 31, and this arrangement can make the heating furnace 3 in the front The rear two hanging wheel guide rails 4 slide left and right, and four lifting cylinders 7 are installed vertically downward in the middle of the blister frame 1. The tops of the four lifting cylinders 7 are slightly hinged to the blister frame 1. The telescopic ends of the lifting cylinders 7 are installed with lifting hooks 71, and are respectively hooked on one side of the upper connecting rod 31 through the lifting hooks 71. The upper connecting rod 31 can be an inverted L shape, so that one side of the upper connecting rod 31 is arranged in the middle of the lifting hook 71. When the lifting cylinder 7 contracts upward, the lifting hook 71 can lift the connecting rod 31 on the corresponding side of the heating furnace 3, so that the heating furnace 3 is flipped and tilted, and away from the thermoplastic sheet on one side of the workbench 2, reducing the impact of heat.

[0025] Among them, the inner side of the upper connecting rod 31 is fixed with a transverse hook rod 32, so that the whole is formed into an inverted L shape, each of the transverse hook rods 32 is respectively correspondingly clamped in the middle of each lifting hook 71, and a hanging pin 33 is longitudinally fixed on one side of the transverse hook rod 32, and the lifting hook 71 is provided with an avoidance groove 72 in the middle of one side of the transverse hook rod 32, and the transverse hook rod 32 is located in the middle of the avoidance groove 72, such as Figure 3 As shown, when the heating furnace 3 is displaced left and right, the avoidance groove 72 can stagger and avoid the hanging pin 33 on the hanger 5 and the horizontal hook rod 32, without affecting the left and right movement of the heating furnace 3. It is further provided that a bayonet 73 that can clamp the hanging pin 33 is opened on the lower side of the avoidance groove 72. In this way, when the hanging pin 33 corresponds to the upper part of the bayonet 73, the bayonet 73 is driven to move upward when the lifting cylinder 7 contracts upward, so that the hanging pin 33 can be rotated and clamped in the bayonet 73, which can effectively prevent the lifted horizontal hook rod 32 from falling off, and is more stable when used.

[0026] The hanger 5 includes four hanging rods 51 extending vertically downward, and four movable hanging wheels 6 are respectively installed on the top of the four hanging rods 51. The lower sides of the four hanging rods 51 are respectively provided with arc-shaped sliding grooves 52, and each arc-shaped sliding groove 52 is movably penetrated with a tipping latch 53. The ends of the four tipping latches 53 are respectively rotatably connected to the four upper connecting rods 31, so that the tipping latches 53 can rotate on the corresponding upper connecting rods 31, and the two arc-shaped sliding grooves 52 on the left side are centered on the two tipping latches 53 on the right side. 52 takes the two left tilting latches 53 as the center of the circle. When the right side of the horizontal heating furnace 3 is lifted, the two right tilting latches 53 slide upward in an arc shape along the corresponding arc-shaped sliding grooves 52 on the right side to achieve the tilting and lifting of the right side of the heating furnace 3. Similarly, when the left side of the horizontal heating furnace 3 is lifted, the two left tilting latches 53 slide upward in an arc shape along the two corresponding arc-shaped sliding grooves 52 on the left side to achieve the tilting and lifting of the left side of the heating furnace 3, so as to reduce the influence of the temperature generated on the side of the heating furnace 3 on the thermoplastic sheet placed on the workbench 2.

[0027] In addition, the middle parts of the two hanging rods 51 on the front side of the hanging rack 5 are locked and connected to each other through a fixing rod, and the two hanging rods 51 on the rear side of the hanging rack 5 are also locked and connected to each other through a fixing rod, which can improve the use stability of the hanging rack 5 and the hanging rods 51.

[0028] When the jack 3 is in the state of being lifted up, the two lifting cylinders 7 on the right side only need to be retracted upwards to allow the two corresponding lifting hooks 71 and the avoidance grooves 72 to be displaced upwards, so that the hanging pins 33 of the two horizontal hooks 32 on the right side can be inserted into the bayonet 73 of the avoidance grooves 72, and the two tilting pins 53 on the right side and the two upper connecting rods 31 on the right side can be driven to slide upwards along the arc sliding grooves 52, thereby realizing the right side of the heating furnace 3 being tilted and lifted; similarly, when the left side of the horizontal heating furnace 3 needs to be tilted and lifted, the two telescopic ends of the lifting cylinders 7 on the left side only need to be retracted upwards, which is simple and convenient to use.

[0029] It should be noted that the utility model is a double-station vacuum forming machine heating furnace tilting mechanism, which mainly improves the above structure. The functions, components and structures not mentioned can be implemented by using components and structures in the prior art that can realize the corresponding functions.

[0030] The above shows and describes the basic principles and main features of the utility model and the advantages of the utility model. For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic features of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the utility model is defined by the attached claims rather than the above description, and it is intended to include all changes within the meaning and scope of the equivalent elements of the claims. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0031] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A double-station heating furnace tilting mechanism for a blister machine, comprising a blister frame (1), workbenches (2) mounted on both sides of the blister frame (1), and a heating furnace (3) disposed in the middle of the blister frame (1), characterized in that: The four sides of the top of the heating furnace (3) are fixedly provided with upper connecting rods (31); the middle parts of the front and rear sides of the blister frame (1) are transversely provided with hanging wheel guide rails (4); the middle part of the blister frame (1) is provided with a hanging rack (5) for sliding; the four sides of the top of the hanging rack (5) are provided with movable hanging wheels (6) and are slidably connected to the two hanging wheel guide rails (4) through the movable hanging wheels (6); the heating furnace (3) is movably hung on the lower side of the hanging rack (5) through the upper connecting rods (31); Four lifting cylinders (7) are installed vertically downward in the middle of the blister frame (1), and lifting hooks (71) are installed at the telescopic ends of the lifting cylinders (7), and the lifting hooks (71) are respectively hooked on one side of the upper connecting rod (31) for lifting and lowering.

2. A double-station heating furnace tilting mechanism for a vacuum forming machine according to claim 1, characterized in that: A transverse hook rod (32) is fixedly provided on the inner side of each upper connecting rod (31), and each transverse hook rod (32) is correspondingly clamped in the middle of each lifting hook (71).

3. A double-station heating furnace tilting mechanism for a vacuum forming machine according to claim 2, characterized in that: A hanging pin (33) is longitudinally fixed to one side of the transverse hook rod (32); a relief groove (72) is provided in the middle of one side of the lifting hook (71) facing the transverse hook rod (32); the transverse hook rod (32) is arranged in the middle of the relief groove (72); and a bayonet (73) capable of engaging the hanging pin (33) is provided at the lower side of the relief groove (72).

4. The double-station heating furnace tilting mechanism of claim 1 is characterized in that: The hanging rack (5) comprises four hanging rods (51) extending vertically downwards, and four movable hanging wheels (6) are respectively mounted on the tops of the four hanging rods (51). The lower sides of the four hanging rods (51) are respectively provided with arc-shaped sliding grooves (52), and each arc-shaped sliding groove (52) is movably penetrated by a tilting latch (53), and the ends of the four tilting latches (53) are respectively rotatably connected to the four upper connecting rods (31).

5. The double-station heating furnace tilting mechanism of claim 4 is characterized by: The two hanging rods (51) on the front side and the two hanging rods (51) on the rear side of the hanging rack (5) are locked and connected to each other via a fixing rod.

6. The double-station blister machine heating furnace tilting mechanism according to claim 4, characterized in that: The arc-shaped sliding groove (52) on the left side has the right-side tilting latch (53) as the center of the circle, and the arc-shaped sliding groove (52) on the right side has the left-side tilting latch (53) as the center of the circle.

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