Safety protection structure of stretcher

Abstract

The utility model discloses a safety protection structure of a stretcher, which relates to the field of stretchers, and adopts the technical scheme that the safety protection structure comprises a base for supporting the structure, the top end of the base is fixedly connected with a transmission component through a support plate, a transmission part of the transmission component is connected with a lifting end of the stretcher, and the transmission component is driven by the support plate when the lifting end moves up and down. When the lifting end of the stretcher moves downwards for machining, the baffle is driven by the transmission assembly to move in the opposite direction, the baffle is located on the surface of the stretcher, when the lifting end of the stretcher moves downwards for machining, the baffle moves upwards, namely, the machined part is shielded, and otherwise, when the lifting end of the stretcher moves upwards for resetting, the baffle moves downwards, and the machined part is opened. The lifting device has the advantages that lifting control is not needed, burden of workers is relieved, extra motors are not needed, and cost is reduced.

Description

Technical Field

[0001] The utility model relates to the field of stretching machines, and more specifically, to a safety protection structure of a stretching machine. Background Art

[0002] A stretching machine is a widely used equipment in industrial production, mainly used for stretching metal materials, plastics, rubber, etc. It stretches the material axially by applying tensile force, thereby changing the shape, size and performance of the material. A stretching machine usually consists of a fuselage, a stretching cylinder, a chuck, a control system and other parts. The fuselage provides a stable support structure, the stretching cylinder generates a strong tensile force, and the chuck firmly clamps both ends of the material. The control system accurately adjusts the speed, stroke and tension of the stretching to meet different materials and processing requirements. The stretching machine can improve the strength and toughness of the material and improve its internal organizational structure. It is widely used in the manufacture of aerospace parts, automotive accessories, auger screw production and other fields.

[0003] When the stretching machine is stretching the material, material fragments, oil stains, etc. may splash out, causing damage to the operator's eyes, face, etc., so they need to be protected by a protective structure.

[0004] The currently commonly used protective structure is formed by a lifting mechanism and a baffle. Before processing, the staff needs to control the motor on the lifting mechanism to raise the baffle to cover the processing area, so as to provide safety protection during processing. After the processing is completed, the baffle is controlled to descend, the processing area is opened, and loading and unloading operations are carried out. The operation is relatively cumbersome, and an additional motor is required to drive the lifting mechanism, which has a high cost.

[0005] Therefore, in order to solve the above technical problems, the present application proposes a safety protection structure for a stretching machine. Utility Model Content

[0006] In view of the deficiencies in the prior art, the utility model aims to provide a safety protection structure for a stretching machine.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a safety protection structure of a stretching machine, including a base for supporting the structure, a transmission assembly fixedly connected to the top of the base through a support plate, and a transmission part thereof is connected to the lifting end of the stretching machine. When the lifting end thereof moves up and down, the baffle is driven to move in the opposite direction through the transmission assembly. The baffle is located on the surface of the stretching machine. When the lifting end of the stretching machine moves downward for processing, the baffle moves upward to shield the processing part. Conversely, when the lifting end of the stretching machine moves upward for resetting, the baffle moves downward to open the processing part.

[0008] Preferably, the transmission assembly includes an N-shaped plate A fixed on the top of the support plate, and an N-shaped plate B fixed to each other between the N-shaped plate A, one side of the inner surface of the N-shaped plate A is rotatably connected to a common gear through a bearing, and a toothed plate is meshedly connected on the outer wall of the common gear, and the surface of the toothed plate is fixed to the side of the lifting end of the stretching machine through a mounting plate, and the other side of the inner surface of the N-shaped plate A is rotatably connected to a large bevel gear through a bearing, and the large bevel gear and the common gear are fixed by a connecting rod, and a small bevel gear axially parallel to the support plate is meshedly connected on the outer wall of the large bevel gear.

[0009] Preferably, the bottom of the small bevel gear is fixedly connected to a reciprocating screw threadedly connected to the rod sleeve on the outer wall, the back of the small bevel gear and the end of the reciprocating screw are rotatably connected to the inner surface of the N-shaped plate B through bearings, and a track component for limiting the up and down movement of the rod sleeve is also installed on the inner surface of the N-shaped plate B, and the surface of the rod sleeve is connected to the baffle.

[0010] Preferably, the rod sleeve and the baffle are detachably connected to facilitate replacement of the baffle.

[0011] Preferably, the surface of the rod sleeve is fixedly connected with a groove seat, the side end of the baffle is fixed to the connecting block through a cross plate, the surface of the connecting block is provided with a plurality of screw holes for screw installation, and the surface of the groove seat is provided with a plurality of through holes for the screws to pass through. The method of limiting first and then fixing is more convenient for staff to operate.

[0012] Preferably, the base is made of cast steel, which has a higher density and greater strength than cast iron, and is usually heavier accordingly, and can stably support the structure.

[0013] Preferably, the track component includes a guide rail fixed on the inner surface of the N-shaped plate B, and one side of the rod sleeve is slidably connected to the guide rail through a slider to maintain the up and down linear movement of the rod sleeve.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] 1. When the lifting end of the stretching machine of the utility model moves downward for processing, the baffle will move upward, that is, the processing part is shielded to prevent the staff from being injured, which plays a role of safety protection. On the contrary, when the lifting end of the stretching machine moves upward for resetting, the baffle will move downward to open the processing part, which is convenient for the staff to load and unload materials. In this way, there is no need to control the lifting, which reduces the burden on the staff, and no additional motor is needed to reduce the cost, so as to solve the problem that the staff needs to control the lifting and lowering of the baffle before processing in the background technology, which is troublesome to operate and has a high cost, and an additional motor is needed to drive the lifting mechanism, which has a high cost.

[0016] 2. The utility model inserts the connecting plate into the groove seat for limiting. After the insertion is completed, the screw hole on the connecting block and the through hole on the groove seat are just aligned, and the screw can be passed through the through hole and then rotated clockwise to install it into the screw hole, thereby completing the fixation of the groove seat and the connecting block, that is, connecting the baffle plate to the screw rod, reversing, removing the screw, and then pulling the connecting block out of the groove seat, the baffle plate and the rod sleeve can be disassembled and assembled. This method of limiting first and then fixing is convenient for the staff to quickly find the fixing position, thereby facilitating the staff's operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the specific structure of the surface of the utility model;

[0020] Figure 3 This is a schematic diagram of the specific structure of the side of the utility model

[0021] Figure 4 For this utility model Figure 3 A magnified view of the local structure.

[0022] In the figure: 1. base;

[0023] 2. Transmission assembly; 201. N-shaped plate A; 202. Connecting rod; 203. Ordinary gear; 204. Tooth plate; 205. Large bevel gear; 206. Small bevel gear; 207. N-shaped plate B; 208. Guide rail; 209. Slider; 210. Mounting plate; 211. Screw rod; 212. Rod sleeve;

[0024] 3. Baffle; 4. Groove seat; 5. Cross plate; 6. Connecting block; 7. Screw hole; 8. Through hole; 9. Support plate. DETAILED DESCRIPTION

[0025] like Figure 1-4As shown, the utility model provides a safety protection structure of a stretching machine, including a base 1 for supporting the structure, a transmission component 2 is fixedly connected to the top of the base 1 through a support plate 9, and its transmission part is connected to the lifting end of the stretching machine. When the lifting end moves up and down, the baffle 3 will be driven to move in the opposite direction through the transmission component 2. The baffle 3 is located on the surface of the stretching machine. When the lifting end of the stretching machine moves downward for processing, the baffle 3 will move upward, that is, the processing part is shielded to prevent the staff from being injured, thereby playing a role of safety protection. On the contrary, when the lifting end of the stretching machine moves upward for resetting, the baffle 3 will move downward to open the processing part, which is convenient for the staff to load and unload materials. In this way, there is no need to control the lifting and lowering, and no additional motor is needed.

[0026] It should also be noted that the base 1 is made of cast steel, which has a higher density and greater strength than cast iron. Its corresponding weight is usually heavier and can stably support the structure.

[0027] The transmission assembly 2 includes an N-shaped plate A201 fixed on the top of the support plate 9, and an N-shaped plate B207 fixed to the N-shaped plate A201. One side of the inner surface of the N-shaped plate A201 is rotatably connected to a common gear 203 through a bearing, and a toothed plate 204 is meshedly connected to the outer wall of the common gear 203. The surface of the toothed plate 204 is fixed to the side of the lifting end of the stretching machine through a mounting plate 210. The other side of the inner surface of the N-shaped plate A201 is rotatably connected to a large bevel gear 205 through a bearing, and the large bevel gear 205 is fixed to the common gear 203 through a connecting rod 202. The outer wall of the large bevel gear 205 is connected to the outer wall of the large bevel gear 205. A small bevel gear 206 axially parallel to the support plate 9 is meshed and connected on the wall, and a screw rod 211 threadedly connected to the rod sleeve 212 on the outer wall is fixedly connected to the bottom of the small bevel gear 206. The back of the small bevel gear 206 and the end of the screw rod 211 are rotatably connected to the inner surface of the N-shaped plate B207 through bearings. A track component for limiting the up and down movement of the rod sleeve 212 is also installed on the inner surface of the N-shaped plate B207. The surface of the rod sleeve 212 is connected to the baffle 3. The track component includes a guide rail 208 fixed on the inner surface of the N-shaped plate B207, and one side of the rod sleeve 212 is slidably connected to the guide rail 208 through a slider 209.

[0028] That is, the tooth plate 204 is installed on the side of the lifting end of the stretching machine through the mounting plate 210, so that when the lifting end of the stretching machine moves downward for processing, the tooth plate 204 will be driven to move downward, and the downward movement of the tooth plate 204 will drive the rotation of the common gear 203, and the common gear 203 drives the rotation of the large bevel gear 205 through the connecting rod 202, and the large bevel gear 205 drives the rotation of the small bevel gear 206 (the large bevel gear 205 rotates one circle, which can drive the small bevel gear 206 to rotate several circles, thereby completing the complete lifting operation of the baffle 3), and the small bevel gear 206 is driven by the small bevel gear 20 6 drives the screw rod 211 to rotate, and the screw rod 211 drives the rod sleeve 212 to move upward, and the rod sleeve 212 drives the slider 209 to move upward, and the slider 209 slides along the guide rail 208 to maintain the linear movement of the rod sleeve 212, and the rod sleeve 212 drives the baffle 3 to move upward to block the baffle 3. Conversely, when the lifting end of the stretching machine (the lifting end is the pressing processing part of the stretching machine) moves upward, the screw rod 211 is driven to rotate in the opposite direction, and finally the rod sleeve 212 and the baffle 3 are driven to move downward, so that the processing part is opened for loading and unloading.

[0029] The cam 212 is provided with a plurality of screw holes 7 for screw installation, and the cam 212 is provided with a plurality of through holes 8 for screws to pass through. The connecting plate 6 is inserted into the groove seat 4 for limiting. After the insertion is completed, the screw holes 7 on the connecting block 6 and the through holes 8 on the groove seat 4 are aligned. The screws can be passed through the through holes 8 and then rotated clockwise to install them into the screw holes 7, thereby completing the fixing of the groove seat 4 and the connecting block 6, that is, connecting the baffle 3 with the screw rod 211. Conversely, the screws can be removed and the connecting block 6 can be pulled out from the groove seat 4 to realize the disassembly and assembly between the baffle 3 and the rod sleeve 212. This method of limiting first and then fixing makes it convenient for the staff to quickly find the fixing position, thereby facilitating the staff to operate.

[0030] The above description is only a preferred embodiment of the utility model and does not limit the utility model in any form. Any ordinary technician in the industry can smoothly implement the utility model as shown in the drawings of the specification and described above. However, any equivalent changes, modifications and evolutions made by technicians familiar with the profession without departing from the scope of the technical solution of the utility model using the technical content disclosed above are all equivalent embodiments of the utility model. At the same time, any equivalent changes, modifications and evolutions made to the above embodiments based on the essential technology of the utility model are still within the protection scope of the technical solution of the utility model.

Claims

1. A safety protection structure for a stretching machine, comprising a base (1) for supporting the structure, characterized in that: The top of the base (1) is fixedly connected to a transmission assembly (2) via a support plate (9), and its transmission part is connected to the lifting end of the stretching machine. When the lifting end moves up and down, the baffle (3) is driven to move in the opposite direction via the transmission assembly (2). The baffle (3) is located on the surface of the stretching machine. When the lifting end of the stretching machine moves downward for processing, the baffle (3) moves upward to shield the processing part. Conversely, when the lifting end of the stretching machine moves upward for resetting, the baffle (3) moves downward to open the processing part.

2. The safety protection structure of a stretching machine according to claim 1, characterized in that: The transmission assembly (2) comprises an N-shaped plate A (201) fixed on the top of the support plate (9), and an N-shaped plate B (207) fixed to the N-shaped plate A (201); one side of the inner surface of the N-shaped plate A (201) is rotatably connected to a common gear (203) via a bearing; an outer side wall of the common gear (203) is meshingly connected to a toothed plate (204); a surface of the toothed plate (204) is fixed to the side of the lifting end of the stretching machine via a mounting plate (210); the other side of the inner surface of the N-shaped plate A (201) is rotatably connected to a large bevel gear (205) via a bearing; the large bevel gear (205) and the common gear (203) are fixed via a connecting rod (202); and an outer side wall of the large bevel gear (205) is meshingly connected to a small bevel gear (206) axially parallel to the support plate (9).

3. The safety protection structure of a stretching machine according to claim 2, characterized in that: A screw rod (211) on the outer wall of the small bevel gear (206) is fixedly connected to the bottom thereof and is threadedly connected to the rod sleeve (212); the back of the small bevel gear (206) and the end of the screw rod (211) are both rotatably connected to the inner surface of the N-shaped plate B (207) via bearings; a track component for limiting the upward and downward movement of the rod sleeve (212) is also installed on the inner surface of the N-shaped plate B (207); and the surface of the rod sleeve (212) is connected to the baffle (3).

4. The safety protection structure of a stretching machine according to claim 3, characterized in that: The rod sleeve (212) and the baffle plate (3) are detachably connected.

5. The safety protection structure of a stretching machine according to claim 4, characterized in that: The surface of the rod sleeve (212) is fixedly connected to a groove seat (4), the side end of the baffle (3) is fixed to a connecting block (6) via a transverse plate (5), the surface of the connecting block (6) is provided with a plurality of screw holes (7) for screw installation, and the surface of the groove seat (4) is provided with a plurality of through holes (8) for screws to pass through.

6. The safety protection structure of a stretching machine according to claim 4, characterized in that: The base (1) is made of cast steel.

7. The safety protection structure of a stretching machine according to claim 3, characterized in that: The track component comprises a guide rail (208) fixed on the inner surface of the N-shaped plate B (207), and one side of the rod sleeve (212) is slidably connected in the guide rail (208) via a slider (209).

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