Protective device for feeding of rubber open mill

Abstract

The utility model discloses a protective device for feeding of a rubber open mill, which comprises a rack, a roller, an electric driver and a feeder, the roller is rotatably mounted on the rack, the electric driver is connected with the roller, the feeder is positioned above the roller, one end of the feeder is matched with the roller, and the protective device further comprises a blocking component for blocking hands of an operator from being drawn by the roller. The blocking assembly comprises a protective fence and a blocking part, and the protective fence is located above the roller; the blocking component is located above the roller or on one side of the roller and connected with the rack, and a first distance is formed between the blocking component and the roller. According to the utility model, the hand of an operator can be prevented from being brought between the two relatively rotating rollers by the rollers to be ground.

Description

TECHNICAL FIELD

[0001] The utility model relates to rubber block conveying equipment, concretely relates to a kind of protective device of rubber open mill feeding. BACKGROUND

[0002] Open mill is one of the most commonly used equipment of rubber mixing, through the opposite running of two rollers, the shear force generated is plasticized to rubber, while the roller keeps rotating, finally realizes the uniform distribution and dispersion of material in rubber.

[0003] Open mill mainly relies on manual operation, needs to be added to various chemical small materials and fillers under specific procedure and specific step, simultaneously also needs to use rubber cutting knife, and the rubber of bag roller is cut and put back, to achieve the purpose that material is mixed uniformly.

[0004] The current rubber open mill feeding part is composed of rack, roller, driver, feeder and other parts, the roller is rotatably installed on the rack, the driver is connected with the roller, and the feeder is located above and cooperates with the roller. Since the roller is located at the end of the rack and is in an exposed state, and the feeding is manually operated, therefore, when feeding, the operator may touch the roller, so that the operator's hand is brought into the two relatively rotating rollers by the roller, causing the operator's hand to be crushed by the roller. Based on the existing rubber open mill feeding structure, there is a safety hazard, therefore, the structure of the rubber open mill feeding part needs to be improved. UTILITY MODEL CONTENTS

[0005] The utility model provides a kind of protective device of rubber open mill feeding, and the utility model can avoid the hand of operator being brought into the two relatively rotating rollers by the roller and being crushed.

[0006] The technical scheme solving the above technical problems is as follows:

[0007] The protective device of rubber open mill feeding includes rack, roller, electric driver, feeder, the roller is rotatably installed on the rack, the electric driver is connected with the roller, the feeder is located above the roller, one end of the feeder cooperates with the roller, further includes blocking component for blocking the hand of operator being rolled into by the roller, and the blocking component includes protective fence, blocking component, and the protective fence is located above the roller;

[0008] The blocking component is located above or one side of the roller, and the blocking component is connected with the rack, and there is a first spacing between the blocking component and the roller.

[0009] Further, the feeder includes sliding plate, connecting seat and hook, the sliding plate is fixed with the connecting seat, the sliding plate cooperates with the roller, and the hook is hung on the protective fence.

[0010] Further, the first spacing is less than 25mm.

[0011] Further, one end of the blocking component is movably connected to the frame;

[0012] Further, the blocking component is electrically connected to the electric drive.

[0013] Further, the triggering power-off unit comprises a starting button, a triggering switch and a relay, the starting button is connected in series with the triggering switch and the coil of the relay to form a first branch, the two ends of the first branch are connected to the power supply, the first normally open contact of the relay is connected in series between the power supply and the electric drive, and the second normally open contact of the relay is connected in parallel to the two ends of the starting button.

[0014] Further, the triggering power-off unit further comprises a resistor and an indicator, the resistor is connected in series with the indicator and the third normally open contact of the relay to form a second branch, and the two ends of the second branch are connected to the power supply.

[0015] In the utility model, when the roller is downwardly fed, the hand of the operator can be far away from the roller. When the first distance between the blocking component and the roller is less than 25 mm, the first distance is less than the thickness of the palm of the hand of the operator, thus, when the hand of the operator is accidentally touched to the rotating roller and is brought to the interval between the two rollers by the rotating roller, the palm is clamped between the roller and the blocking component, so that the palm is prevented from entering the interval between the two rollers, and the hand of the operator is further prevented from being crushed. When the hand of the operator is brought to the interval between the two rollers by the rotating roller, the blocking component is pressed by the hand of the operator, so that the blocking component 5 is rotated, the rotating blocking component triggers the triggering power-off unit, the triggering power-off unit makes the electric drive be powered off, the electric drive stops working, and the roller stops rotating, so that the hand of the operator is further prevented from being pressed. BRIEF DESCRIPTION OF DRAWINGS

[0016] Fig. 1 It is a structural view of the protective device for rubber mixing mill feeding.

[0017] Fig. 2 It is a structural view of the feeder.

[0018] Fig. 3 It is a schematic view of the blocking component.

[0019] Fig. 4 It is a circuit structural view of the triggering power-off unit. DETAILED DESCRIPTION

[0020] As Figs. 1 to 4As shown, the rubber open mill feeding protection device, including frame 1, roller 2, electric drive M, feeder 3, roller 2 is rotatably mounted on the frame 1, electric drive M and roller 2 are connected, feeder 3 is located above the roller 2, one end of the feeder 3 is matched with the roller 2, in the embodiment, the electric drive M is composed of motor and transmission mechanism, the transmission mechanism includes driving gear, first driven gear, second driven gear, the driving gear is installed on the output shaft of the motor, the first driven gear is engaged with the driving gear, the first driven gear and the second driven gear are installed on a roller 2 respectively, the first driven gear and the second driven gear are engaged.

[0021] It also includes a blocking component for blocking the hands of the operator from being rolled into the roller 2, the blocking component includes a protective fence 4, a blocking part 5, the protective fence 4 is located above the roller 2; the blocking part 5 is located above or on one side of the roller 2, the blocking part 5 is connected with the frame 1, and there is a first spacing between the blocking part 5 and the roller 2.

[0022] In the embodiment, the protective fence 4 includes a plurality of protective frames 4a and support columns 4b, the protective frames 4a are arranged from bottom to top, and the support columns 4b are fixed between adjacent two protective frames 4a, so that a gap is formed between adjacent two protective frames 4a. Since the roller 2 is two, the inner frame body of the protective frame 4a is located directly above the gap between the two rollers 2, and after the protective frame 4a is set, the hands of the operator can be away from the roller 2 when feeding downward to the roller 2. The first spacing between the blocking part 5 and the roller 2 is less than 25mm, which is less than the thickness of the palm of the operator's hand, so when the operator's hand accidentally touches the rotating roller 2 and is brought to the two rollers 2 by the rotating roller 2, the palm will be stuck between the roller 2 and the blocking part 5, thereby preventing the palm from entering the gap between the two rollers 2, and further avoiding the hands of the operator from being crushed.

[0023] In the embodiment, the feeder 3 includes a sliding plate 3a, a connecting seat 3b and a hook 3c, the sliding plate 3a is fixed with the connecting seat 3b, the sliding plate 3a is matched with the roller 2, and the hook 3c is hung on the protective fence 4. The added material can be easily dropped into the gap between the rollers 2 through the sliding plate 3a.

[0024] One end of the blocking part 5 is movably connected with the frame 1, the blocking part 5 includes a connecting frame 5a and three blocking rods 5b, the connecting frame 5a is triangular, and the two ends of the blocking rod 5b are connected with the connecting frame 5a respectively, one of the connecting frames 5a is hinged with the frame 1, so that one end of the blocking part 5 is movably connected with the frame 1.

[0025] The embodiment also comprises a trigger power-off unit for stopping the electric driver M from working when the blocking component 5 is forced to rotate, one end of the blocking component 5 is connected with the trigger power-off unit, and the blocking component 5 is electrically connected with the electric driver M. When the hand of the operator is brought to the space between the two rotating rollers 2 by the rollers 2, the blocking component 5 is forced to rotate due to the blocking of the hand of the operator, the rotating blocking component 5 triggers the trigger power-off unit, and the trigger power-off unit makes the electric driver M lose power, the electric driver M stops working, and the rollers 2 stop rotating, so as to avoid the hand of the operator from being further squeezed.

[0026] The trigger power-off unit comprises a start button SB1, a trigger switch LS, and a relay, the start button SB1 is connected in series with the trigger switch LS and the coil KM of the relay to form a first branch, two ends of the first branch are connected with a power supply, a first normally open contact KM1 of the relay is connected in series between the power supply and the electric driver M, and a second normally open contact KM2 of the relay is connected in parallel to two ends of the start button SB1. The trigger switch LS preferably adopts a travel switch, and the original state of the trigger switch LS is a closed state.

[0027] When the electric driver M needs to be started to work, the load switch QS and the power-off unit QF are turned on, the start button SB1 is pressed, the coil KM of the relay is powered, the second normally open contact KM2 is closed, the relay is powered and self-locked, the first normally open contact KM1 of the relay is closed, the electric driver M is powered, and the electric driver M drives the rollers 2 to rotate.

[0028] When the hand of the operator is brought to the space between the two rotating rollers 2 by the rollers 2, the blocking component 5 is forced to rotate due to the blocking of the hand of the operator, the rotating blocking component 5 triggers the trigger power-off unit, i.e. the trigger switch LS is switched from the closed state to the open state, at this time, the coil KM of the relay loses power, the first normally open contact KM1 and the second normally open contact KM2 are switched from the closed state to the open state, the electric driver M cannot obtain power supply from the power supply, the electric driver M stops working, and the hand of the operator is protected.

[0029] The trigger power-off unit also comprises a resistor R1 and an indicator lamp L, the resistor R1 is connected in series with the indicator lamp L and a third normally open contact KM3 of the relay to form a second branch, two ends of the second branch are connected with the power supply. When the coil KM of the relay is powered, the third normally open contact KM3 is closed, current flows through the second branch, and the indicator lamp L is lighted, so as to indicate the working state of the electric driver M to the operator.

[0030] Finally, it should be noted that the above-described embodiments are merely the preferred embodiments of the present application for describing the technical solutions of the present application, and are not intended to limit the present application, and are not intended to limit the protection scope of the present application; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that the technical solutions recorded in the foregoing embodiments can still be modified, or some or all of the technical features can be replaced by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the protection scope of the claims.

Claims

1. A protective device for feeding rubber on an open mill, comprising a frame (1), a roller (2), an electric drive (M), and a feeder (3), the roller (2) being rotatably mounted on the frame (1), the electric drive (M) being connected to the roller (2), and the feeder (3) being located above the roller (2), one end of the feeder (3) being matched with the roller (2), characterized in that, the feeder (3) is provided with a plurality of feeding grooves (4) arranged in parallel and arranged in a spiral shape, and the feeding grooves (4) are arranged in a spiral shape from the matched end of the feeder (3) to the other end of the feeder (3). The blocking assembly includes a guard rail (4) and a blocking component (5), the guard rail (4) is located above the roller (2); The blocking component (5) is located above or on one side of the roller (2), and the blocking component (5) is connected with the rack (1) and has a first spacing between the blocking component (5) and the roller (2).

2. The rubber mill loading guard of claim 1, wherein, The feeder (3) includes a sliding plate (3a), a connecting seat (3b) and a hook (3c), the sliding plate (3a) is fixed with the connecting seat (3b), the sliding plate (3a) cooperates with the roller (2), and the hook (3c) is hung on the guard rail (4).

3. The rubber mill loading guard of claim 1, wherein, The first spacing is less than 25mm.

4. A protective device for feeding a rubber mill according to any one of claims 1 to 3, characterized in that, One end of the blocking component (5) is movably connected with the rack (1); The trigger power-off unit is further included, one end of the blocking component (5) is connected with the trigger power-off unit, and the blocking component (5) is electrically connected with the electric drive (M).

5. The rubber mill loading guard of claim 4, wherein, The trigger power-off unit includes a start button (SB1), a trigger switch (LS) and a relay, the start button (SB1), the trigger switch (LS) and the coil (KM) of the relay are connected in series to form a first branch, two ends of the first branch are connected with a power supply, a first normally open contact (KM1) of the relay is connected in series between the power supply and the electric drive (M), and a second normally open contact (KM2) of the relay is connected in parallel to two ends of the start button (SB1).

6. A rubber mill loading guard according to claim 5, wherein, The trigger power-off unit further includes a resistor (R1) and an indicator light (L), the resistor (R1), the indicator light (L) and a third normally open contact (KM3) of the relay are connected in series to form a second branch, and two ends of the second branch are connected with the power supply.

Images