Friction traction mechanism for casing sleeving and shrinking machine

Abstract

The utility model relates to the field of traction devices for casing shrinkage machines, in particular to a friction traction mechanism for a casing shrinkage machine, which comprises a driving mechanism assembly, a support frame, an upper traction wheel component, a lower traction wheel component, an adjusting screw assembly, a tension wheel component and a synchronous transmission belt. A supporting frame is arranged on the side face of the driving mechanism assembly, and an upper traction wheel assembly, a lower traction wheel assembly and an adjusting screw rod assembly are installed on the supporting frame. In the using process of the casing shrinking machine, a casing tubular film can be in the best traction state, the using requirement of subsequent casing shrinking operation of casing shrinking heads is met, and the casing shrinking machine is convenient to use and high in practicability. And the sleeving and shrinking operation effect of the casing sleeving and shrinking head is effectively ensured.

Description

Technical Field

[0001] The utility model relates to the field of traction devices for casing shrinking machines, in particular to a friction traction mechanism for casing shrinking machines. Background Art

[0002] The casing film is a packaging material with very good barrier properties. It can effectively isolate oxygen and water vapor and improve the shelf life of the contents. The casing film will shrink at high temperatures and stick to the packaging. The packaging is very beautiful. It is mainly used to package ham sausages and can be used for industrial mass production of ham sausages on automatic sausage stuffers. The casing shrinking machine is a device used to shrink the casing film. When shrinking the casing tubular film, the casing shrinking machine needs to use a traction mechanism to traction and transport the tubular film. The traction operation effect of the traction mechanism directly affects the subsequent shrinking effect of the shrinking head. Therefore, it is particularly important to provide an efficient traction operation mechanism suitable for the casing shrinking machine. Utility Model Content

[0003] The utility model aims to provide a friction traction mechanism for a casing shrinking machine, which can adjust the conveying friction force appropriately according to the diameter of the casing tubular film during use, so as to put the casing tubular film in an optimal traction state, meet the shrinking operation requirements of the subsequent casing shrinking head, and effectively ensure the shrinking operation effect of the casing shrinking head.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A friction traction mechanism for a casing shrinking machine comprises a driving mechanism assembly, a support frame, an upper traction wheel assembly, a lower traction wheel assembly, an adjusting screw assembly, a tension wheel assembly and a synchronous transmission belt. The bottom of the driving mechanism assembly is installed on an external frame, and a support frame is installed and arranged on the side of the driving mechanism assembly. An upper traction wheel assembly, a lower traction wheel assembly and an adjusting screw assembly are installed on the support frame. The upper traction wheel assembly and the lower traction wheel assembly are hingedly connected to the support frame, and the adjusting screw assembly is hingedly connected to the upper traction wheel assembly and the lower traction wheel assembly respectively. A tension wheel assembly is arranged on the upper right side of the support frame, and the driving mechanism assembly is connected to the upper traction wheel assembly, the lower traction wheel assembly and the tension wheel assembly through a synchronous transmission belt.

[0006] The driving mechanism assembly includes a first slewing support, a second slewing support, a synchronous shaft, a main driving wheel and a synchronous wheel. Support bearings are installed on the first slewing support and the second slewing support, the synchronous shaft is installed on the support bearing, the main driving wheel is installed at one side end of the synchronous shaft and connected to the synchronous shaft through a key, and the synchronous wheel is installed at the other side end of the synchronous shaft and connected to the synchronous shaft through a key.

[0007] The upper traction wheel assembly and the lower traction wheel assembly have the same structure, and both include a first hinge pin, a second hinge pin, a driving arm and a traction wheel assembly. The first hinge pin and the second hinge pin are installed on the driving arm and are slidably hingedly connected to the driving arm. The first hinge pin is installed on the supporting frame, and the second hinge pin is installed on the adjusting screw assembly. A shaft sleeve is installed at the end of the driving arm, and the traction wheel assembly is installed on the shaft sleeve and is in smooth contact with the shaft sleeve.

[0008] The traction wheel assembly comprises a traction wheel body, a traction wheel shaft and a traction shaft driving wheel. The traction wheel shaft is installed on a shaft sleeve and in smooth contact with the shaft sleeve. The traction wheel body is installed on one side of the traction wheel shaft, and the traction shaft driving wheel is installed on the other side of the traction wheel shaft. The traction wheel body and the traction shaft driving wheel are connected to the traction wheel shaft through a connecting key.

[0009] The adjusting screw assembly comprises a screw body, an upper adjusting block and a lower adjusting block. An upper threaded section and a lower threaded section are processed on the lower side of the screw body. The thread rotation directions of the upper threaded section and the lower threaded section are opposite. Threaded through holes are processed on the upper adjusting block and the lower adjusting block. The upper adjusting block is installed at the position of the upper threaded section through the threaded through hole and is connected to the upper threaded section threadedly. The lower adjusting block is installed at the position of the lower threaded section through the threaded through hole and is connected to the lower threaded section threadedly.

[0010] Furthermore, an adjusting hand wheel is installed on the upper part of the screw body, and the adjusting hand wheel is fixedly installed and connected to the screw body.

[0011] Furthermore, a second hinge pin is installed on the upper adjustment block and the lower adjustment block respectively.

[0012] The beneficial effects of the utility model are as follows: the friction traction mechanism for the casing shrinking machine provided by the utility model has a scientific overall structural design, and the installation, operation and use process is simple and convenient. In the specific production and use process, it has the following technical characteristics and advantages:

[0013] 1. The friction traction mechanism for the casing shrinking machine of the utility model can adjust the size of the gap between the upper traction wheel assembly and the lower traction wheel assembly through the coordinated operation of the upper traction wheel assembly, the lower traction wheel assembly and the adjusting screw assembly during use, thereby realizing the adjustment of the friction between the traction wheel body and the casing cylindrical film in the upper traction wheel assembly and the lower traction wheel assembly, so that the casing cylindrical film can be in the best traction state, meet the subsequent casing shrinking operation requirements, and effectively ensure the casing shrinking operation effect;

[0014] 2. During use of the friction traction mechanism for the casing shrinking machine of the utility model, the driving mechanism assembly is connected to the upper traction wheel assembly and the lower traction wheel assembly through a synchronous transmission belt and drives the traction shaft driving wheel in the upper traction wheel assembly and the lower traction wheel assembly to rotate. The traction shaft driving wheel drives the traction wheel body to rotate and pull the casing cylindrical film by driving the traction wheel shaft. The transmission stability of the traction wheel body can be effectively guaranteed during the entire transmission process. At the same time, the opening size of the traction wheel body in the upper traction wheel assembly and the lower traction wheel assembly is adjustable. When in use, it can meet the traction operation of casing cylindrical films of different diameters. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the assembly structure of the friction traction mechanism for the casing shrinking machine of the utility model;

[0016] Figure 2 It is a structural schematic diagram of the driving mechanism assembly in the utility model;

[0017] Figure 3 It is a structural schematic diagram of an upper traction wheel assembly and a lower traction wheel assembly in the utility model;

[0018] Figure 4 It is a structural schematic diagram of the traction wheel assembly in the utility model;

[0019] Figure 5 It is a structural schematic diagram of the adjusting screw assembly in the utility model;

[0020] The numbers in the figure are: 1-driving mechanism assembly, 2-support frame, 3-upper traction wheel assembly, 4-lower traction wheel assembly, 5-adjusting screw assembly, 6-tension wheel assembly, 7-synchronous transmission belt, 11-first slewing support, 12-second slewing support, 13-synchronous shaft, 14-main driving wheel, 15-synchronous wheel, 31-first hinge pin, 32-second hinge pin, 33-driving arm, 34-traction wheel assembly, 341-traction wheel body, 342-traction wheel shaft, 343-traction shaft driving wheel, 51-screw body, 52-upper adjustment block, 53-lower adjustment block, 54-adjustment handwheel. DETAILED DESCRIPTION

[0021] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that when an element is referred to as "fixed to" or "set on" another element, it can be directly or indirectly connected to the other element. When an element is referred to as "connected to" another element, it can be directly or indirectly connected to the other element. The terms "left" and "right" used to indicate orientation in this application document are based on the specific structure shown in the accompanying drawings and do not constitute a limitation on the structure.

[0022] Specific embodiment 1: As shown in the specification of the utility model Figure 1 As shown, the utility model provides a friction traction mechanism for a casing shrinking machine, which mainly includes a driving mechanism assembly 1, a support frame 2, an upper traction wheel assembly 3, a lower traction wheel assembly 4, an adjustment screw assembly 5, a tension wheel assembly 6 and a synchronous transmission belt 7, wherein the driving mechanism assembly 1 is used to drive the upper traction wheel assembly 3 and the lower traction wheel assembly 4 to rotate. During installation, the bottom of the driving mechanism assembly 1 is installed on the external machine frame, and the support frame 2 is installed on the side of the driving mechanism assembly 1. The support frame 2 is mainly used to install and support the upper traction wheel assembly 3 and the lower traction wheel assembly 4. During installation, the support frame 2 is installed on the support frame 2. An upper traction wheel assembly 3 and a lower traction wheel assembly 4 are installed on the frame 2. The upper traction wheel assembly 3 and the lower traction wheel assembly 4 are used for traction and transportation of the casing tubular film. The upper traction wheel assembly 3 and the lower traction wheel assembly 4 are hingedly connected to the support frame 2. The adjusting screw assembly 5 is used to adjust the opening size between the upper traction wheel assembly 3 and the lower traction wheel assembly 4. During installation, the adjusting screw assembly 5 is hingedly connected to the upper traction wheel assembly 3 and the lower traction wheel assembly 4 respectively. A tension wheel assembly 6 is arranged on the upper right side of the support frame 2, and the driving mechanism assembly 1 is connected to the upper traction wheel assembly 3, the lower traction wheel assembly 4 and the tension wheel assembly 6 through a synchronous transmission belt 7.

[0023] As the specification in this utility model Figure 2 As shown, the driving mechanism assembly 1 for driving the upper traction wheel assembly 3 and the lower traction wheel assembly 4 to rotate comprises a first slewing support 11, a second slewing support 12, a synchronous shaft 13, a main driving wheel 14 and a synchronous wheel 15, wherein the first slewing support 11 and the second slewing support 12 are mainly used for mounting and supporting the synchronous shaft 13. During mounting, support bearings are mounted on the first slewing support 11 and the second slewing support 12, the synchronous shaft 13 is mounted on the support bearings, the main driving wheel 14 driven by the external driving mechanism is mounted on one side end position of the synchronous shaft 13 and is connected to the synchronous shaft 13 through a key, and the synchronous wheel 15 that directly drives the upper traction wheel assembly 3 and the lower traction wheel assembly 4 through a synchronous belt is mounted on the other side end position of the synchronous shaft 13 and is connected to the synchronous shaft 13 through a key.

[0024] As the specification in this utility model Figure 3As shown, the upper traction wheel assembly 3 and the lower traction wheel assembly 4 for frictionally traction of the casing tubular film material have the same structure, and both include a first hinge pin 31, a second hinge pin 32, a driving arm 33 and a traction wheel assembly 34, wherein, during installation, the first hinge pin 31 and the second hinge pin 32 are mounted on the driving arm 33 and are slidably hingedly connected with the driving arm 33, the first hinge pin 31 is mounted on the supporting frame 2, the second hinge pin 32 is mounted on the upper adjustment block 52 and the lower adjustment block 53 in the adjusting screw assembly 5, and a shaft sleeve adapted to the installation of the traction wheel assembly 34 is installed at the end of the driving arm 33, and the traction wheel assembly 34 is mounted on the shaft sleeve and is in smooth contact with the shaft sleeve.

[0025] As the specification in this utility model Figure 4 As shown, the traction wheel assembly 34 for performing friction traction operations on the casing tubular film material includes a traction wheel body 341, a traction wheel shaft 342 and a traction shaft driving wheel 343, wherein the traction wheel shaft 342 is used to install and support the traction wheel body 341 and the traction shaft driving wheel 343. During installation, the traction wheel shaft 342 is installed on the shaft sleeve and in smooth contact with the shaft sleeve, and the traction wheel body 341 in friction contact with the outer wall of the casing tubular film is installed on one side of the traction wheel shaft 342, and the traction shaft driving wheel 343 is installed on the other side of the traction wheel shaft 342. The traction wheel body 341 and the traction shaft driving wheel 343 are connected to the traction wheel shaft 342 through a connecting key.

[0026] As the specification in this utility model Figure 5 As shown, the adjustment screw assembly 5 for adjusting the opening and closing size spacing between the upper traction wheel assembly 3 and the lower traction wheel assembly 4 includes a screw body 51, an upper adjustment block 52 and a lower adjustment block 53, wherein an upper thread segment and a lower thread segment adapted to the installation of the upper adjustment block 52 and the lower adjustment block 53 are processed on the lower side of the screw body 51, and the thread rotation direction of the upper thread segment and the lower thread segment are opposite, and threaded through holes are processed on the upper adjustment block 52 and the lower adjustment block 53, and the upper adjustment block 52 is installed at the position of the upper thread segment through the threaded through hole and connected with the thread of the upper thread segment, and the lower adjustment block 53 is installed at the position of the lower thread segment through the threaded through hole and connected with the thread of the lower thread segment. In order to facilitate adjustment, an adjustment hand wheel 54 is installed on the upper part of the screw body 51, and the adjustment hand wheel 54 is fixedly installed and connected with the screw body 51.

[0027] The installation and use process of the friction traction mechanism for the casing shrinking machine of the utility model is as follows:

[0028] 1. The installation process is as follows:

[0029] First, the installer can install the driving mechanism assembly 1. During the specific installation, support bearings can be installed on the first slewing support 11 and the second slewing support 12, and the synchronous shaft 13 can be installed on the support bearings. Then, the main driving wheel 14 can be installed on one side end of the synchronous shaft 13 and connected to the synchronous shaft 13 through a key. The synchronous wheel 15 can be installed on the other side end of the synchronous shaft 13 and connected to the synchronous shaft 13 through a key. Then, the upper traction wheel assembly 3, the lower traction wheel assembly 4 and the adjusting screw assembly 5 can be installed on the support frame 2. During the installation, the first hinge pin 31 and the second hinge pin 32 can be installed on the driving arm 33 and connected to the driving arm 33 by sliding hinges. The first hinge pin 31 can be installed on the support frame 2, and the second hinge pin 32 can be installed on the support frame 2. Installed on the upper adjustment block 52 and the lower adjustment block 53 in the adjusting screw assembly 5, a shaft sleeve adapted to the installation of the traction wheel assembly 34 is installed at the end of the driving arm 33, the traction wheel shaft 342 is installed on the shaft sleeve and in smooth contact with the shaft sleeve, a traction wheel body 341 in friction contact with the outer wall of the casing tubular film is installed on one side of the traction wheel shaft 342, and a traction shaft driving wheel 343 is installed on the other side of the traction wheel shaft 342. The traction wheel body 341 and the traction shaft driving wheel 343 are connected to the traction wheel shaft 342 through a connecting key, and then the tension wheel assembly 6 is installed and arranged on the upper right side of the supporting frame 2, and the driving mechanism assembly 1 is connected to the upper traction wheel assembly 3, the lower traction wheel assembly 4, and the tension wheel assembly 6 through the synchronous transmission belt 7. At this point, the installation process of the utility model is completed.

[0030] During specific operation, the main driving wheel 14 in the driving mechanism assembly 1 is driven by the external driving mechanism, and the main driving wheel 14 drives the synchronous wheel 15 to rotate through the synchronous shaft 13, and the synchronous wheel 15 drives the traction shaft driving wheel 343 in the upper traction wheel assembly 3 and the lower traction wheel assembly 4 to rotate through the synchronous transmission belt 7. At this time, the traction shaft driving wheel 343 can drive the traction wheel body 341 to rotate through the traction wheel shaft 342. At this time, the casing tube-shaped membrane material between the traction wheel body 341 in the upper traction wheel assembly 3 and the lower traction wheel assembly 4 can be pulled and transported to the sleeve shrinking head by the traction wheel body 341 for sleeve shrinking operation. During the traction operation, the operator can adjust the opening and closing distance between the upper traction wheel assembly 3 and the lower traction wheel assembly 4 by adjusting the adjustment screw assembly 5. Specifically, when the adjustment hand wheel 54 is rotated clockwise, the adjustment hand wheel 54 can drive the screw body 51 to rotate clockwise. At this time, under the action of the thread driving force, the upper adjustment block 5 The upper traction wheel assembly 3 is driven downward by the second hinge pin 32, and the lower adjustment block 53 drives the lower traction wheel assembly 4 to move upward by the second hinge pin 32. At this time, the opening spacing between the upper traction wheel assembly 3 and the lower traction wheel assembly 4 becomes smaller, and the traction friction force of the traction wheel body 341 on the casing cylindrical film material increases. When the adjustment hand wheel 54 is rotated counterclockwise, the adjustment hand wheel 54 can drive the screw body 51 to rotate counterclockwise. At this time, under the action of the thread driving force, the upper adjustment block 52 drives the upper traction wheel assembly 3 to move upward by the second hinge pin 32, and the lower adjustment block 53 drives the lower traction wheel assembly 4 to move downward by the second hinge pin 32. At this time, the opening spacing between the upper traction wheel assembly 3 and the lower traction wheel assembly 4 becomes larger, and the traction friction force of the traction wheel body 341 on the casing cylindrical film material is reduced. The above adjustment can make the casing cylindrical film in the best traction state, meet the use requirements of the subsequent casing shrinking operation, and effectively ensure the casing shrinking operation effect. The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A friction traction mechanism for a casing shrinking machine, characterized in that: The invention comprises a driving mechanism assembly (1), a supporting frame (2), an upper traction wheel assembly (3), a lower traction wheel assembly (4), an adjusting screw assembly (5), a tension wheel assembly (6) and a synchronous transmission belt (7). The supporting frame (2) is installed and arranged on the side of the driving mechanism assembly (1). The upper traction wheel assembly (3), the lower traction wheel assembly (4) and the adjusting screw assembly (5) are installed on the supporting frame (2). The upper traction wheel assembly (3) and the lower traction wheel assembly (4) are hingedly connected to the supporting frame (2). The adjusting screw assembly (5) is hingedly connected to the upper traction wheel assembly (3) and the lower traction wheel assembly (4). A tension wheel assembly (6) is arranged on the upper right side of the supporting frame (2). The driving mechanism assembly (1) is connected to the upper traction wheel assembly (3), the lower traction wheel assembly (4) and the tension wheel assembly (6) through a synchronous transmission belt (7).

2. A friction traction mechanism for a casing shrinking machine according to claim 1, characterized in that: The driving mechanism assembly (1) comprises a first slewing support (11), a second slewing support (12), a synchronizing shaft (13), a main driving wheel (14) and a synchronizing wheel (15). Support bearings are installed on the first slewing support (11) and the second slewing support (12). The synchronizing shaft (13) is installed on the support bearings. The main driving wheel (14) is installed at one side end of the synchronizing shaft (13) and is connected to the synchronizing shaft (13) via a key. The synchronizing wheel (15) is installed at the other side end of the synchronizing shaft (13) and is connected to the synchronizing shaft (13) via a key.

3. The friction traction mechanism for a casing shrinking machine according to claim 1, characterized in that: The upper traction wheel assembly (3) and the lower traction wheel assembly (4) have the same structure, and both include: A first hinge pin (31), a second hinge pin (32), a driving arm (33) and a traction wheel assembly (34), wherein the first hinge pin (31) and the second hinge pin (32) are mounted on the driving arm (33) and are slidably hingedly connected to the driving arm (33), the first hinge pin (31) is mounted on the supporting frame (2), the second hinge pin (32) is mounted on the adjusting screw assembly (5), a shaft sleeve is mounted at the end of the driving arm (33), and the traction wheel assembly (34) is mounted on the shaft sleeve and is in smooth contact with the shaft sleeve.

4. A friction traction mechanism for a casing shrinking machine according to claim 3, characterized in that: The traction wheel assembly (34) comprises a traction wheel body (341), a traction wheel shaft (342) and a traction shaft driving wheel (343); the traction wheel shaft (342) is mounted on a shaft sleeve and in smooth contact with the shaft sleeve; the traction wheel body (341) is mounted on one side of the traction wheel shaft (342); the traction shaft driving wheel (343) is mounted on the other side of the traction wheel shaft (342); the traction wheel body (341) and the traction shaft driving wheel (343) are connected to the traction wheel shaft (342) via a connecting key.

5. The friction traction mechanism for a casing shrinking machine according to claim 3, characterized in that: The adjusting screw assembly (5) comprises a screw body (51), an upper adjusting block (52) and a lower adjusting block (53). An upper threaded section and a lower threaded section are processed on the lower side of the screw body (51). The threaded rotation directions of the upper threaded section and the lower threaded section are opposite. Threaded through holes are processed on the upper adjusting block (52) and the lower adjusting block (53). The upper adjusting block (52) is installed at the position of the upper threaded section through the threaded through hole and is connected to the upper threaded section by threaded cooperation. The lower adjusting block (53) is installed at the position of the lower threaded section through the threaded through hole and is connected to the lower threaded section by threaded cooperation.

6. The friction traction mechanism for a casing shrinking machine according to claim 5, characterized in that: An adjusting hand wheel (54) is installed on the upper part of the screw body (51), and the adjusting hand wheel (54) is fixedly installed and connected to the screw body (51).

7. The friction traction mechanism for a casing shrinking machine according to claim 5, characterized in that: A second hinge pin (32) is respectively installed on the upper adjustment block (52) and the lower adjustment block (53).

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