Belt feeding and withdrawing mechanism of PP belt strapping machine

Abstract

The utility model provides a PP belt strapping machine belt feeding and withdrawing mechanism which comprises a machine frame, a driving wheel and an auxiliary pressing wheel, the driving wheel and the auxiliary pressing wheel are installed on the machine frame, the driving wheel is connected with a driving motor, the auxiliary pressing wheel is connected with a driving air cylinder, a cam and a rack are arranged between the driving air cylinder and the auxiliary pressing wheel, and the driving motor is connected with the driving motor. A tooth part is arranged on the cam and meshed with the rack, the driving air cylinder drives the rack to move so as to drive the cam and the auxiliary pressing wheel to move, the driving motor is connected with the driving wheel feeding and withdrawing belt, the driving motor is a large motor so that the bundling force can be larger than 60 kg, the feeding and withdrawing belt and the auxiliary pressing wheel are controlled through the driving air cylinder, control is easy, and cost is low.

Description

Technical Field

[0001] The utility model relates to a belt feeding and retracting mechanism of a PP belt strapping machine. Background Art

[0002] The existing PP strapping machine's feeding and retracting mechanism uses a small motor to feed and retract the strap, and the auxiliary pressing wheel for feeding and retracting the strap is controlled by a servo. The tightening force of the retracted strap is only a dozen kilograms, the bundling force of the retracted strap is insufficient, the control is complex, and the cost is high. Utility Model Content

[0003] The utility model proposes a PP strapping machine belt feeding and retracting mechanism, comprising a frame, a driving wheel, and an auxiliary pressure wheel, wherein the driving wheel and the auxiliary pressure wheel are mounted on the frame, the driving wheel is connected to a driving motor, the auxiliary pressure wheel is connected to a driving cylinder, a cam and a rack are arranged between the driving cylinder and the auxiliary pressure wheel, a tooth portion is arranged on the cam and meshes with the rack, and the driving cylinder drives the rack to move to drive the cam and the auxiliary pressure wheel to move.

[0004] In one or more embodiments, a gap is provided between the driving wheel and the auxiliary pressing wheel for the strapping belt to pass through.

[0005] In one or more embodiments, the pressure wheel is an eccentric wheel.

[0006] In one or more embodiments, the rack is horizontally arranged, and the driving cylinder drives the rack to move horizontally.

[0007] In one or more embodiments, a large portion is disposed on the cam, and the toothed portion is disposed on the large portion and meshes with the rack.

[0008] In one or more embodiments, the driving wheel is provided with an entry channel, a turning channel and an exit channel.

[0009] The utility model has the beneficial effects of connecting the active wheel to the feeding and retracting belt through the driving motor, and the driving motor adopts a large motor to achieve a bundling force of more than 60 kilograms, and the auxiliary pressure wheel of the feeding and retracting belt is controlled by a driving cylinder, which is simple to control and low in cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 This is a schematic diagram of the PP strapping machine's strapping feeding and retracting mechanism.

[0011] Figure 2 This is another side view of the PP strapping machine's strapping mechanism. DETAILED DESCRIPTION

[0012] The present application scheme is further described as follows in conjunction with the accompanying drawings:

[0013] See attached Figure 1-2A PP strapping machine belt feeding and retracting mechanism comprises a frame 1, a driving wheel 2, and an auxiliary pressure wheel 3. The driving wheel 2 and the auxiliary pressure wheel 3 are installed on the frame 1, the driving wheel 2 is connected to a driving motor 4, the auxiliary pressure wheel 3 is connected to a driving cylinder 5, a cam 7 and a rack 6 are arranged between the driving cylinder 5 and the auxiliary pressure wheel 3, the cam 7 is provided with a tooth portion and meshes with the rack 6, and the driving cylinder 5 drives the rack 6 to move to drive the cam 7 and the auxiliary pressure wheel 3 to move.

[0014] Furthermore, a gap is provided between the driving wheel 2 and the auxiliary pressing wheel 3 for the strapping belt to pass through.

[0015] Furthermore, the pressure wheel 3 is an eccentric wheel.

[0016] Furthermore, the rack 6 is arranged horizontally, and the driving cylinder 5 drives the rack 6 to move horizontally.

[0017] Furthermore, the cam 7 is provided with a large portion 71 , and the tooth portion is provided on the large portion 71 and meshes with the rack 6 .

[0018] Furthermore, the driving wheel 2 is provided with an entry channel 21 , a turning channel 22 and an exit channel 23 .

[0019] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0020] In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0021] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0022] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0023] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0024] The above-mentioned preferred implementation modes should be regarded as illustrative examples of the implementation modes of the present application scheme. Any technical deductions, replacements, improvements, etc. that are identical or similar to the present application scheme or made based on this scheme should be regarded as within the scope of protection of this patent.

Claims

1. A PP strapping machine feeding and retracting mechanism, characterized in that: It includes a frame, a driving wheel, and an auxiliary pressure wheel. The driving wheel and the auxiliary pressure wheel are installed on the frame. The driving wheel is connected to the driving motor, and the auxiliary pressure wheel is connected to the driving cylinder. A cam and a rack are arranged between the driving cylinder and the auxiliary pressure wheel. The cam is provided with a tooth portion and meshes with the rack. The driving cylinder drives the rack to move to drive the cam and the auxiliary pressure wheel to move.

2. The PP strapping machine feeding and retracting mechanism according to claim 1 is characterized in that: A gap is provided between the driving wheel and the auxiliary pressing wheel for the strapping belt to pass through.

3. The PP strapping machine feeding and retracting mechanism according to claim 2 is characterized in that: The pressure wheel is an eccentric wheel.

4. The PP strapping machine feeding and retracting mechanism according to claim 2 is characterized in that: The rack is arranged horizontally, and the driving cylinder drives the rack to move horizontally.

5. The PP strapping machine feeding and retracting mechanism according to claim 4 is characterized in that: The cam is provided with a large portion, and the toothed portion is provided on the large portion and meshes with the rack.

6. The PP strapping machine feeding and retracting mechanism according to claim 1 is characterized in that: The driving wheel is provided with an entry channel, a turning channel and a delivery channel.

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