Furnace door lifting device of glass container baking furnace

Abstract

The utility model relates to the technical field of glass baking ovens, in particular to a furnace door lifting device of a glass container baking oven, which comprises a transmission component and a driving component which are respectively fixed on the baking oven, the transmission assembly comprises a pulley assembly and a connecting rod, one end of the connecting rod is connected with the pulley assembly through a hanging rope, and the other end of the connecting rod is connected with the driving assembly through a traction rope; the pulley assembly comprises a main fixed pulley pivoted to the baking oven, an auxiliary fixed pulley and a movable pulley located between the main fixed pulley and the auxiliary fixed pulley, the hanging ropes comprise the first hanging rope and the second hanging rope, the upper end of the first hanging rope is fixedly connected with a pulley frame of the movable pulley, and the upper end of the second hanging rope is fixedly connected with one end of the connecting rod. And the lower ends of the first hanging rope and the second hanging rope are fixed on an oven door hanging ring of the baking oven. The pulling force for pulling the furnace door can be reduced to about one third of the weight of the furnace door, so that the driving force used for opening the furnace door by an operator is greatly reduced, and the aim of saving labor is fulfilled.

Description

Technical Field

[0001] The utility model relates to the technical field of glass baking furnaces, in particular to a furnace door lifting device of a glass container baking furnace. Background Art

[0002] Glass container baking furnace is a kind of equipment specially used for heating and baking glass containers, which is widely used in glass manufacturing and processing industries.

[0003] Automatic baking ovens are usually equipped with an automated conveying system that can handle glass containers continuously or in batches to improve production efficiency. The temperature in the oven can be precisely adjusted through an advanced control system to meet the baking requirements of different glass products. Special heating technology and hot air circulation system are used to ensure uniform temperature distribution in the oven and ensure baking quality. The baking oven is also equipped with a monitoring system that can display the parameters of the baking process in real time, which is convenient for operators to monitor and record.

[0004] By baking, patterns such as logos can be fixed on glass containers. It also helps to release the internal stress generated by the glass during the molding and cooling process, prevents the glass container from breaking during use, strengthens the glass surface and internal structure, and thus improves its overall mechanical strength and wear resistance.

[0005] When the baking oven is running, the oven door needs to be closed to maintain the temperature and pressure inside the oven. However, the oven door will become very hot during the baking process, so a lifting device for the oven door needs to be set to control the opening and closing of the oven door to avoid injuries to the operator.

[0006] Through this lifting device, operators can operate the baking oven without touching the high-temperature oven door, which greatly improves the safety and efficiency of the production process. At the same time, it also helps to reduce heat loss and ensure the energy efficiency and baking quality of the baking oven.

[0007] The prior art "A gear lifting furnace door" (publication number: CN202066372U) discloses a furnace door opening device, which controls the opening and closing of the furnace door through a gear and rack transmission method; however, the prior art still has the following technical problems:

[0008] The prior art is to drive the oven door up and down by turning the handle to drive the gear to drive the rack set on the oven door. However, since the oven door is large and heavy, it is laborious for the operator to turn the handle. In addition, the heating furnace bakes multiple batches of products every day, and the operator repeats the switch operation many times, which is very physically demanding. Utility Model Content

[0009] The utility model provides a furnace door lifting device for a glass container baking furnace, which can solve the problem that the existing furnace door lifting device is very laborious when opening and closing the furnace door.

[0010] The present application provides the following technical solutions: a furnace door lifting device for a glass container baking furnace, comprising a transmission assembly and a drive assembly respectively fixed to the baking furnace;

[0011] The transmission assembly includes a pulley assembly fixed on the baking oven and a connecting rod pivotally connected to the baking oven, one end of the connecting rod is connected to the pulley assembly through a hanging rope, and the other end of the connecting rod is connected to the driving assembly through a traction rope;

[0012] The pulley assembly includes a main fixed pulley, an auxiliary fixed pulley and a movable pulley located between the main fixed pulley and the auxiliary fixed pulley pivotally connected to the baking oven, the hanging rope includes a first hanging rope and a second hanging rope respectively wound on the main fixed pulley and the auxiliary fixed pulley, the upper end of the first hanging rope is fixedly connected to the pulley frame of the movable pulley after passing around the main fixed pulley, the upper end of the second hanging rope is fixedly connected to one end of the connecting rod after passing around the movable pulley and the auxiliary fixed pulley in sequence, and the lower ends of the first hanging rope and the second hanging rope are both fixed to the hanging ring of the oven door of the baking oven.

[0013] Beneficial effects:

[0014] When the operator pulls the traction rope through the driving assembly, the other end of the connecting rod will drag the upper end of the second hanging rope upward, thereby driving the lower end of the second hanging rope to pull the furnace door upward, and at the same time the movable pulley will move downward, and the pulley frame of the movable pulley will drive the upper end of the first hanging rope to move downward, so that the lower end of the first hanging rope also pulls the furnace door upward. Through the cooperation of the pulley group and the connecting rod, the pulling force of the traction rope is reduced to about one third of the weight of the furnace door, thereby greatly reducing the driving force used by the operator to open the furnace door, achieving the purpose of saving effort.

[0015] Furthermore, a horizontal distance between the pivot point of the connecting rod and the baking oven and one end of the connecting rod close to the pulley assembly is smaller than a horizontal distance between the pivot point of the connecting rod and one end of the connecting rod close to the traction rope.

[0016] Beneficial effect: The pivot point position of the connecting rod is limited so that the power arm length of the connecting rod is greater than the resistance arm length, which can further reduce the pulling force of the traction rope when opening the furnace door.

[0017] Furthermore, the driving assembly includes an installation box fixed on the baking oven and opened at the upper end, a driven mechanism, an active mechanism and a locking mechanism respectively fixed in the installation box, the active mechanism is located between the locking mechanism and the driven mechanism, and the lower end of the traction rope is connected to the driven mechanism.

[0018] Beneficial effect: The operation controls the active mechanism to generate torque, and the driven mechanism transmits the torque to the traction rope, thereby controlling the up and down swing of the connecting rod, so as to control the hanging rope of the pulley assembly to pull the furnace door up and down.

[0019] Furthermore, the driven mechanism includes a secondary shaft rotatably connected in the installation box, a secondary gear and a take-up wheel both fixed on the secondary shaft, and the lower end of the traction rope is wound on the take-up wheel.

[0020] Beneficial effect: The driven mechanism is used to transmit the torque of the active mechanism, and converts the torque into the vertical pulling force of the traction rope through the take-up wheel, and finally achieves the effect of dragging the furnace door.

[0021] Furthermore, the active mechanism includes a main shaft rotatably connected in the installation box, a main gear fixed on the main shaft rod and a hand crank fixed on the end of the main shaft, the main gear is meshed with the sub-gear, and the main gear has a smaller diameter than the sub-gear.

[0022] Beneficial effect: Since the diameter of the main gear is smaller than that of the sub-gear, when the operator generates a rotational torque by shaking the hand crank, the torque will be amplified through the sub-gear, making the pulling force of the traction rope greater, making it easier for the operator to shake the hand crank.

[0023] Furthermore, the locking mechanism includes a sliding rod fixed in the installation box, a compression spring sleeved on the sliding rod, a clamping strip slidably connected to the sliding rod, a hook rotatably connected to the end of the clamping strip and a circular ring fixed on the outer side of the installation box; one end of the clamping strip can be inserted into the tooth groove of the main gear along the axial direction of the sliding rod, a strip hole is provided on the side wall of the installation box, the other end of the clamping strip extends out of the strip hole and can slide in the strip hole in the axial direction of the sliding rod, the hook is rotatably connected to the end of the clamping strip extending out of the strip hole, and when the hook hooks the circular ring, the end of the clamping strip away from the hook is just inserted into the tooth groove of the main gear.

[0024] Beneficial effect: By hooking the hook onto the ring, the card strip is stuck in the tooth groove of the main gear. At this time, the main gear is locked and cannot rotate, which is conducive to controlling the furnace door to remain stationary at any height, thereby achieving precise control of the lifting height of the furnace door; when the hook is removed from the ring, the elastic force of the compression spring pulls the card strip out of the tooth groove of the main gear. At this time, the hand crank can be controlled to drive the furnace door to lift or lower, thereby improving the convenience of operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is the structural front view of the utility model.

[0026] Figure 2 for Figure 1 Top view of the middle drive mechanism. DETAILED DESCRIPTION

[0027] The following is further described in detail through specific implementation methods:

[0028] The marks in the drawings of the specification include: baking oven 1, connecting rod 2, traction rope 3, take-up wheel 4, secondary gear 5, ring 6, installation box 7, secondary shaft 8, oven mouth 9, slide rail 10, oven door 11, movable pulley 12, secondary fixed pulley 13, clamping strip 14, hook 141, hand crank 15, main gear 16, slide rod 17, compression spring 18, main shaft 19, first hanging rope 20, second hanging rope 21, main fixed pulley 22.

[0029] Embodiment 1

[0030] like Figure 1 and Figure 2 As shown, a furnace door lifting device for a glass container baking furnace comprises a transmission assembly fixed above a furnace opening 9 of a baking furnace 1 and a drive assembly fixed on one side of the furnace opening 9. Figure 1 It is a front view of the baking oven 1 in the direction of the oven mouth 9. The baking oven 1 is provided with a horizontal conveyor chain, and the glass containers are sent into the oven from the oven mouth 9 through the conveyor chain. Slide rails 10 are vertically fixed on the side walls of the oven mouth 9. The slide rails 10 are provided with slide grooves. Rollers are provided on both sides of the oven door 11. The rollers can roll in the slide grooves of the slide rails 10, so that the entire oven door 11 can slide up and down relative to the slide rails 10.

[0031] like Figure 1 As shown, the transmission assembly includes a pulley assembly fixed above the oven opening 9 and a connecting rod 2 pivotally connected to the baking oven 1. Figure 1 As shown, the connecting rod 2 is rotatably connected to the rotating shaft fixed on the furnace wall of the baking furnace 1, and the horizontal distance between the rotating shaft and the left end of the connecting rod 2 is greater than the horizontal distance between the rotating shaft and the right end of the connecting rod 2, so that the power arm length of the connecting rod 2 is greater than the resistance arm length, the right end of the connecting rod 2 is connected to the pulley assembly through a hanging rope, and the other end of the connecting rod 2 is connected to the driving assembly through a traction rope 3.

[0032] The pulley assembly includes a main fixed pulley 22, an auxiliary fixed pulley 13 and a movable pulley 12 located between the main fixed pulley 22 and the auxiliary fixed pulley 13 pivotally connected to the baking oven 1. The hanging rope includes a first hanging rope 20 and a second hanging rope 21 respectively wound around the main fixed pulley 22 and the auxiliary fixed pulley 13. The upper end of the first hanging rope 20 is fixedly connected to the upper part of the pulley frame of the movable pulley 12 after passing through the main fixed pulley 22. The upper end of the second hanging rope 21 is fixedly connected to one end of the connecting rod 2 after passing through the movable pulley 12 and the auxiliary fixed pulley 13 in turn. The lower ends of the first hanging rope 20 and the second hanging rope 21 are fixed to the hanging ring of the oven door 11 of the baking oven 1.

[0033] The driving assembly includes a mounting box 7 fixed on one side of the furnace mouth 9 and having an opening at the upper end, a driven mechanism, an active mechanism and a locking mechanism respectively fixed in the mounting box 7, the active mechanism is located between the locking mechanism and the driven mechanism, and the lower end of the traction rope 3 is connected to the driven mechanism.

[0034] like Figure 2 As shown, the driven mechanism includes a secondary shaft 8 rotatably connected in the installation box 7, a secondary gear 5 coaxially fixed on the secondary shaft 8 and a take-up wheel 4, and the lower end of the traction rope 3 is wound on the take-up wheel 4.

[0035] The active mechanism includes a main shaft 19 rotatably connected to the installation box 7, a main gear 16 fixed on the rod of the main shaft 19, and a hand crank 15 fixed on the end of the main shaft 19. The hand crank 15 is Z-shaped, the main gear 16 is meshed with the sub-gear 5, and the diameter of the main gear 16 is smaller than that of the sub-gear 5.

[0036] The locking mechanism includes a slide bar 17 fixed in the installation box 7, a compression spring 18 sleeved on the slide bar 17, a clip 14 slidably connected to the slide bar 17, a hook 141 rotatably connected to the end of the clip 14 and a ring 6 fixed on the outer side of the installation box 7; one end of the clip 14 can be inserted into the tooth groove of the main gear 16 along the axial direction of the slide bar 17, a strip hole is provided on the side wall of the installation box 7, the other end of the clip 14 extends out of the strip hole and can slide in the strip hole in the axial direction of the slide bar 17, the hook 141 is rotatably connected to the end of the clip 14 extending out of the strip hole, and when the hook 141 hooks the ring 6, the end of the clip 14 away from the hook 141 is just inserted into the tooth groove of the main gear 16.

[0037] The method of using this device is as follows:

[0038] When it is necessary to lift the furnace door 11, the hook 141 is taken out of the ring 6, the compression spring 18 contracts to disengage the card strip 14 from the tooth groove of the main gear 16, and the hand rocker 15 is shaken to generate a rotational torque to drive the main shaft 19 to rotate. The rotational torque is transmitted to the traction rope 3 through the main gear 16, the sub-gear 5, the sub-shaft 8, and the take-up wheel 4 in turn. The traction rope 3 pulls the connecting rod 2 downward, and the other end of the connecting rod 2 is lifted upward and pulls the second hanging rope 21. The lower end of the second hanging rope 21 pulls the furnace door 11 up. At the same time, the movable pulley 12 will move downward, and the pulley frame of the movable pulley 12 drives the upper end of the first hanging rope 20 to move downward, so that the lower end of the first hanging rope 20 also pulls the furnace door 11 up. Through the cooperation of the pulley group and the connecting rod 2, the pulling force of the traction rope 3 is reduced to about one-third of the weight of the furnace door 11, thereby greatly reducing the driving force used by the operator to open the furnace door 11, thereby achieving the purpose of saving effort.

[0039] When it is necessary to stop the furnace door 11 from moving upward, the sliding clip 14 allows the hook 141 to hook the ring 6, and the end of the clip 14 is stuck in the tooth groove of the main gear 16. At this time, the main gear 16 is locked and cannot rotate, which is beneficial for controlling the furnace door 11 to remain stationary at any height, thereby achieving precise control of the lifting height of the furnace door 11.

[0040] The above is only an embodiment of the utility model. The utility model is not limited to the field involved in this implementation case. The common knowledge such as the known specific structure and characteristics in the scheme is not described in detail here. It should be pointed out that for those skilled in the art, several deformations and improvements can be made without departing from the structure of the utility model, which should also be regarded as the protection scope of the utility model, and these will not affect the effect of the implementation of the utility model and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. A door lifting device for a glass container baking oven, comprising a transmission assembly and a drive assembly respectively fixed to the baking oven, characterized in that: The transmission assembly includes a pulley assembly fixed on the baking oven and a connecting rod pivotally connected to the baking oven, one end of the connecting rod is connected to the pulley assembly through a hanging rope, and the other end of the connecting rod is connected to the driving assembly through a traction rope; The pulley assembly includes a main fixed pulley, an auxiliary fixed pulley and a movable pulley located between the main fixed pulley and the auxiliary fixed pulley pivotally connected to the baking oven, the hanging rope includes a first hanging rope and a second hanging rope respectively wound on the main fixed pulley and the auxiliary fixed pulley, the upper end of the first hanging rope is fixedly connected to the pulley frame of the movable pulley after passing around the main fixed pulley, the upper end of the second hanging rope is fixedly connected to one end of the connecting rod after passing around the movable pulley and the auxiliary fixed pulley in sequence, and the lower ends of the first hanging rope and the second hanging rope are both fixed to the hanging ring of the oven door of the baking oven.

2. The door lifting device of a glass container baking furnace according to claim 1, characterized in that: The horizontal distance between the pivot point of the connecting rod and the baking oven and one end of the connecting rod close to the pulley assembly is smaller than the horizontal distance between the pivot point of the connecting rod and one end of the connecting rod close to the traction rope.

3. The door lifting device of a glass container baking furnace according to claim 2, characterized in that: The driving assembly includes a mounting box fixed on the baking oven and having an opening at the upper end, a driven mechanism, an active mechanism and a locking mechanism respectively fixed in the mounting box, the active mechanism is located between the locking mechanism and the driven mechanism, and the lower end of the traction rope is connected to the driven mechanism.

4. The door lifting device of a glass container baking furnace according to claim 3, characterized in that: The driven mechanism comprises a secondary shaft rotatably connected in the installation box, secondary gears and a take-up wheel both fixed on the secondary shaft, and the lower end of the traction rope is wound on the take-up wheel.

5. The door lifting device of a glass container baking furnace according to claim 4, characterized in that: The active mechanism comprises a main shaft rotatably connected in the installation box, a main gear fixed on the main shaft rod and a hand crank fixed on the end of the main shaft. The main gear is meshed with the sub-gear, and the main gear has a smaller diameter than the sub-gear.

6. The door lifting device of a glass container baking furnace according to claim 5, characterized in that: The locking mechanism includes a sliding rod fixed in the installation box, a compression spring sleeved on the sliding rod, a clamping strip slidably connected to the sliding rod, a hook rotatably connected to the end of the clamping strip and a circular ring fixed on the outer side of the installation box; one end of the clamping strip can be inserted into the tooth groove of the main gear along the axial direction of the sliding rod, a strip hole is provided on the side wall of the installation box, the other end of the clamping strip extends out of the strip hole and can slide in the strip hole in the axial direction of the sliding rod, the hook is rotatably connected to the end of the clamping strip extending out of the strip hole, and when the hook hooks the circular ring, the end of the clamping strip away from the hook is just inserted into the tooth groove of the main gear.

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